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30 results on '"Motoharu Awazawa"'

1. Gut insulin action protects from hepatocarcinogenesis in diabetic mice comorbid with nonalcoholic steatohepatitis

Author

Kotaro Soeda, Takayoshi Sasako, Kenichiro Enooku, Naoto Kubota, Naoki Kobayashi, Yoshiko Matsumoto Ikushima, Motoharu Awazawa, Ryotaro Bouchi, Gotaro Toda, Tomoharu Yamada, Takuma Nakatsuka, Ryosuke Tateishi, Miwako Kakiuchi, Shogo Yamamoto, Kenji Tatsuno, Koji Atarashi, Wataru Suda, Kenya Honda, Hiroyuki Aburatani, Toshimasa Yamauchi, Mitsuhiro Fujishiro, Tetsuo Noda, Kazuhiko Koike, Takashi Kadowaki, and Kohjiro Ueki

Subjects
Science
Abstract

Abstract Diabetes is known to increase the risk of nonalcoholic steatohepatitis (NASH) and hepatocellular carcinoma (HCC). Here we treat male STAM (STelic Animal Model) mice, which develop diabetes, NASH and HCC associated with dysbiosis upon low-dose streptozotocin and high-fat diet (HFD), with insulin or phlorizin. Although both treatments ameliorate hyperglycemia and NASH, insulin treatment alone lead to suppression of HCC accompanied by improvement of dysbiosis and restoration of antimicrobial peptide production. There are some similarities in changes of microflora from insulin-treated patients comorbid with diabetes and NASH. Insulin treatment, however, fails to suppress HCC in the male STAM mice lacking insulin receptor specifically in intestinal epithelial cells (ieIRKO), which show dysbiosis and impaired gut barrier function. Furthermore, male ieIRKO mice are prone to develop HCC merely on HFD. These data suggest that impaired gut insulin signaling increases the risk of HCC, which can be countered by restoration of insulin action in diabetes.

Published
2023
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2. A MAFG-lncRNA axis links systemic nutrient abundance to hepatic glucose metabolism

Author

Marta Pradas-Juni, Nils R. Hansmeier, Jenny C. Link, Elena Schmidt, Bjørk Ditlev Larsen, Paul Klemm, Nicola Meola, Hande Topel, Rute Loureiro, Ines Dhaouadi, Christoph A. Kiefer, Robin Schwarzer, Sajjad Khani, Matteo Oliverio, Motoharu Awazawa, Peter Frommolt, Joerg Heeren, Ludger Scheja, Markus Heine, Christoph Dieterich, Hildegard Büning, Ling Yang, Haiming Cao, Dario F. De Jesus, Rohit N. Kulkarni, Branko Zevnik, Simon E. Tröder, Uwe Knippschild, Peter A. Edwards, Richard G. Lee, Masayuki Yamamoto, Igor Ulitsky, Eduardo Fernandez-Rebollo, Thomas Q. de Aguiar Vallim, and Jan-Wilhelm Kornfeld

Subjects
Science
Abstract

Despite widespread transcription of LncRNA in mammalian systems, their contribution to metabolic homeostasis at the cellular and tissue level remains elusive. Here Pradas-Juni et al. describe a transcription factor–LncRNA pathway that couples hepatocyte nutrient sensing to regulation of glucose metabolism in mice.

Published
2020
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3. Acquired partial lipoatrophy as graft-versus-host disease and treatment with metreleptin: two case reports

Author

Yusuke Shibata, Atsuko Nakatsuka, Jun Eguchi, Satoshi Miyamoto, Yukari Masuda, Motoharu Awazawa, Akinobu Takaki, Ryuichi Yoshida, Takahito Yagi, and Jun Wada

Subjects
Lipoatrophy, Diabetes, Transplantation, Leptin, Insulin resistance, Medicine
Abstract

Abstract Introduction Acquired partial lipoatrophy has been reported after bone marrow transplantation during childhood; however, no adult cases have previously been reported. We herein report two adult cases of acquired partial lipoatrophy after transplantation. Case presentation A 28-year-old Japanese woman developed diabetic ketoacidosis and received insulin therapy after bone marrow transplantation. She manifested partial lipoatrophy of the extremities, prominent insulin resistance, hyperglycemia, hypertriglyceridemia, and fatty liver. A 40-year-old Japanese woman underwent liver transplantation from a living donor for alcoholic liver disease after abstinence from alcohol. She newly developed non-alcoholic steatohepatitis and diabetes. Non-alcoholic steatohepatitis progressed to liver failure, and a second liver transplantation from a brain-dead donor was performed at 42 years of age. She demonstrated loss of subdermal fat of the upper and lower extremities, prominent insulin resistance, hyperglycemia, and hypertriglyceridemia. In both cases, the injection of recombinant methionyl human leptin reversed all of the metabolic abnormalities. Conclusions Acquired partial lipoatrophy after transplantation is a manifestation of chronic graft-versus-host disease in adults. This entity is associated with diabetes with prominent insulin resistance and severe hypertriglycemia and can be successfully treated with metreleptin for the long term.

Published
2018
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4. LincRNA H19 protects from dietary obesity by constraining expression of monoallelic genes in brown fat

Author

Elena Schmidt, Ines Dhaouadi, Isabella Gaziano, Matteo Oliverio, Paul Klemm, Motoharu Awazawa, Gerfried Mitterer, Eduardo Fernandez-Rebollo, Marta Pradas-Juni, Wolfgang Wagner, Philipp Hammerschmidt, Rute Loureiro, Christoph Kiefer, Nils R. Hansmeier, Sajjad Khani, Matteo Bergami, Markus Heine, Evgenia Ntini, Peter Frommolt, Peter Zentis, Ulf Andersson Ørom, Jörg Heeren, Matthias Blüher, Martin Bilban, and Jan-Wilhelm Kornfeld

Subjects
Science
Abstract

Brown adipose tissue (BAT) thermogenesis counteracts obesity and promotes metabolic health. The role of long non-coding RNAs (lncRNAs) in the regulation of this process is not well understood. Here the authors identify a maternally expressed lncRNA, H19, that increases BAT oxidative metabolism and energy expenditure.

Published
2018
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5. Empagliflozin in Patients with Chronic Kidney Disease

Author

Herrington, William G, Staplin, Natalie, Wanner, Christoph, Green, Jennifer B, Hauske, Sibylle J, Emberson, Jonathan R, Preiss, David, Judge, Parminder, Mayne, Kaitlin J, Ng, Sarah Y A, Sammons, Emily, Zhu, Doreen, Hill, Michael, Stevens, Will, Wallendszus, Karl, Brenner, Susanne, Cheung, Alfred K, Liu, Zhi-Hong, Li, Jing, Hooi, Lai Seong, Liu, Wen, Kadowaki, Takashi, Nangaku, Masaomi, Levin, Adeera, Cherney, David, Maggioni, Aldo P, Pontremoli, Roberto, Deo, Rajat, Goto, Shinya, Rossello, Xavier, Tuttle, Katherine R, Steubl, Dominik, Petrini, Michaela, Massey, Dan, Eilbracht, Jens, Brueckmann, Martina, Landray, Martin J, Baigent, Colin, Haynes, Richard, The EMPA-KIDNEY Collaborative Group: Colin Baigent, Martin J Landray, Christoph Wanner, William G Herrington, Richard Haynes, Jennifer B Green, Sibylle J Hauske, Martina Brueckmann, Mark Hopley, Maximillian von-Eynatten, Jyothis George, Susanne Brenner, Alfred K Cheung, David Preiss, Zhi-Hong Liu, Jing Li, Laiseong Hooi, Wen Liu, Takashi Kadowaki, Masaomi Nangaku, Adeera Levin, David Cherney, Roberto Pontremoli, Aldo P Maggioni, Natalie Staplin, Jonathan Emberson, Stefan Hantel, Shinya Goto, Rajat Deo, Katherine R Tuttle, Michael Hill, Parminder Judge, Kaitlin J Mayne, Sarah Y A Ng, Xavier Rossello, Emily Sammons, Doreen Zhu, Peter Sandercock, Rudolf Bilous, Charles Herzog, Paul Whelton, Janet Wittes, Derrick Bennett, Patricia Achiri, Chrissie Ambrose, Cristina Badin, Jill Barton, Richard Brown, Andy Burke, Sebastian Butler, Rejive Dayanandan, Pia Donaldson, Robert Dykas, Lucy Fletcher, Kate Frederick, Hannah Kingston, Mo Gray, Emily Harding, Akiko Hashimoto, Lyn Howie, Susan Hurley, Ryonfa Lee, Nik Luker, Kevin Murphy, Mariko Nakahara, John Nolan, Michelle Nunn, Sorcha Mulligan, Akiko Omata, Sandra Pickworth, YanRu Qiao, Shraddha Shah, Karen Taylor, Alison Timadjer, Monique Willett, Liz Wincott, Qin Yan, Hui Yu, Louise Bowman, Fang Chen, Robert Clarke, Michelle Goonasekera, Waseem Karsan, Marion Mafham, Christina Reith, Mohammed Zayed, Ritva Ellison, Rowan Moys, Will Stevens, Kevin Verdel, Karl Wallendszus, Chris Bowler, Anna Brewer, Andy Measor, Guanguo Cui, Charles Daniels, Angela Field, Bob Goodenough, Ashley Lawson, Youcef Mostefai, Dheeptha Radhakrishnan, Samee Syed, Shuang Xia, Ruth Adewuyi-Dalton, Thomas Arnold, Anne-Marie Beneat, Anoushka Bhatt, Chloe Bird, Andrew Breach, Laura Brown, Mark Caple, Tatyana Chavagnon, Karen Chung, Sarah Clark, Luminita Condurache, Katarzyna Eichstadt, Marta Espino Obrero, Scarlett Forest, Helen French, Nick Goodwin, Andrew Gordon, Joanne Gordon, Cat Guest, Tina Harding, Michal Hozak, Matthew Lacey, David MacLean, Louise Messinger, Stewart Moffat, Martin Radley, Claire Shenton, Sarah Tipper, Jon Tyler, Lesley Weaving, James Wheeler, Elissa Williams, Tim Williams, Hamish Woodhouse, Angela Chamberlain, Jo Chambers, Joanne Davies, Denise Donaldson, Pati Faria-Shayler, Denise Fleming-Brown, Jennifer Ingell, Carol Knott, Anna Liew, Helen Lochhead, Juliette Meek, Isabel Rodriguez-Bachiller, Andrea Wilson, Patrick Zettergren, Rach AitSadi, Ian Barton, Alex Baxter, Yonghong Bu, Lukasz Danel, Sonja Grotjahn, Rijo Kurien, Michael Lay, Archie Maskill, Aleksandra Murawska, Rachel Raff, Allen Young, Rebecca Sardell, Vladimir Cejka, Marcela Fajardo-Moser, Christian Hartner, Doris Poehler, Janina Renner, Franziska Scheidemantel, Miya Bryant, Anita Hepditch, Cassandra Johnson, Erin Latore, Yolanda Miller, Lauren Price, Merilee Whalen, Ashleigh Wheeler, Jenny Ingell, Yu An, Yinghua Chen, Peiling Chen, Hao Dai, Hong Du, Fang Feng, Qing Guo, Libo Hou, Wuhanbilige Hundei, Binbin Jin, Yan Li, Jiamin Liu, Xia Song, Yanping Wang, Yanwu Yu, Ning Zhang, Lingshan Zhao, Hui Zhong, Cheng Beng Goh, Ye Mun Low, Soon Yi Sor, Farah Hanis Zulkipli, Sarojini Sivanandam, Natsuki Arai, Ai Fukasawa, Mizue Furukawa, Keisuke Habuki, Shoko Hayashi, Wakako Isari, Saki Kanegae, Maria Kawai, Reiki Kobayashi, Takako Kuramae, Chika Kuribayashi, Sawako Maeno, Satoshi Masumoto, Tomoko Morisaki, Minoru Oda, Kazue Sawada, Kenta Sugamori, Ayana Tatsuzawa, Aiko Tomita, Kazuyuki Yuasa, Hiroko Inazawa, Amanda Axler, Kerri Gallo, Ester Baldini, Barbara Bartolomei Mecatti, Francesca Bianchini, Martina Ceseri, Laura Cipressa, Gianna Fabbri, Andrea Lorimer, Donata Lucci, Sharang Ghavampour, Anja Knoppe, Hans Schmidt-Gurtler, Hubert Dumann, Sybille Merscher, Margret Patecki, Georg Rainer Schlieper, Anke Torp, Bianca Weber, Maja Zietz, Bernd Hohenstein, Urs Benck, Diliana Draganova, Thomas Weinreich, Lothar Wolf, Jasmine Gaidu, Hanna Reiner, Mandy Visnjic, Daniel Steffl, Marie Breitenfeldt, Annette Kraemer-Guth, Christine Braun, Simone Hagge, Michael Schomig, Stephan Matthias, Dominik Stoffler, Beate Schumacher, Thomas Sitter, Louise Fuessl, Julia Krappe, Jerome Loutan, Volker Vielhauer, Luciano Andriaccio, Magdalena Maurer, Bernhard Winkelmann, Martin Dursch, Linda Seifert, Linda Tenbusch, Julia Weinmann-Menke, Simone Boedecker, Wiebke Kaluza-Schilling, Daniel Kraus, Carina Krieger, Margit Schmude, Anne Schreiber, Ewelina Eckrich, Diethelm Tschope, Abdulwahab Arbi, Young Lee-Barkey, Bernd Stratmann, Natalie Prib, Sina Rolfsmeier, Irina Schneider, Lars Rump, Johannes Stegbauer, Christine Pötz, Mara Schemmelmann, Claudia Schmidt, Michael Koch, Sendogan Aker, Annika Küpper, Manuela Martin, Thiemo Pfab, Christian Albert, Michael Haase, Barbara Zander, Claudia Schneider-Danwitz, Wolfgang Seeger, Wolf-Adam Seeger, Britta Zemann, Christoph Stellbrink, Kristin Marx, Ekaterina Stellbrink, Britta Brettschneider, Stephanie Watson, Marion Iselt, Gerhard Klausmann, Inga-Nadine Kummer, Auguste Kutschat, Simone Streitenberger, Matthias Girndt, Silke Markau, Ina Girakossyan, Claudia Hanf, Joachim Beige, Ralph Wendt, Ulrike Schmidt, Andreas Schneider, Roland Veelken, Claudia Donhauser, Luis Becker, Nexhat Miftari, Ricarda Wolfling, Sarah Morlok, Christian Hugo, Alexander Paliege, Jens Passauer, Julian Stumpf, Annegret Fleischer, Kerstin Haaser, Bernhard Kraemer, Jan Jochims, Bernd Kruger, Claudia Foellinger, Anastassiya Reisler, Frank Strutz, Stefan Haack, Ursula Hohenstatt, Martin Busch, Konstantin Herfurth, Gunter Wolf, Rainer Paul, Hermann Haller, Jessica Kaufeld, Jan Menne, Elisabeth Bahlmann-Kroll, Angela Bergner, Horst Weihprecht, Aydin Er, Florian Sonntag, Elif Turan, Michael Wittmann, Franziska Klauser, Eva Voigt, Volker Schettler, Egbert Schulz, Madlen Rohnstock, Elke Schettler, Bernd Schroppel, Rene van Erp, Martin Kachele, Ulla Ludwig, Lena Schulte-Kemna, Waltraud Kmietschak, Elke Preiss, Martina Ruocco, Gunnar Heine, Martin Brzoska, Sebastian Gabel, Christina Büttner, Asma Sabarai, Bernhard Banas, Tobias Bergler, Yvonne Ehrl, Franz Putz, Antonia Schuster, Stefanie Kuhn, Torsten Schramm, Stefan Degenhardt, Gerhard Schmidt, Lea Weiland, Ulrike Giebeln-Hudnell, Jan Kielstein, Gabriele Eden, Brigitte Fuchs, Gina Morig, Manuela Winkler, Harald Darius, Charalampos Kriatselis, Carl-Philipp Roesch, Astrid Maselli, Dominik Alscher, Markus Ketteler, Moritz Schanz, Severin Schricker, Bianka Rettenmaier, Andrea Schwab, Pablo Pergola, Irene Leal, Melissa Cagle, Anna Romo, Anthony Torres, Sucharit Joshi, Kulli Barrett, Alexis Africano, Vicki Dodds, Dorleena Gowen, Ashlee Morris, Juan Fernandez, Guillermo Jimenez, Ricardo Viera, Kendaling Bruce, Ryan Barrios, Maylin Garcia, Kerelyn Garcia, Iradis Leal, David Tietjen, David Bains, Carlo Castillo, Genielle Brewer, Justin Davis, Natalie Freking, Brittany Golson, Sally Ham, Jesslyn Roesch, Pusadee Suchinda, Shameem Beigh, Usah Lilavivat, Joyce Bilton, Kim Bocchicchia, Jeffrey Turner, Neera Dahl, Aldo Peixoto, Yasemin Kavak, Lauren Liberti, Hari Nair, Nicolas Page, Stephanie Rosenberg, Kathryn Simmons, Tamara Isakova, Rebecca Frazier, Rupal Mehta, Anand Srivastava, Patrick Fox, Jonathan Hecktman, Alexander Hodakowski, Carlos Martinez, Rachel Phillips, Alexis Stevenson, Reem Mustafa, Kyle Jansson, Cassandra Kimber, Jason Stubbs, Ahmad Tuffaha, Sri Yarlagadda, Debbie Griffin, Elisabeth Laundy, Zhuo Tang, Radica Alicic, Ann Cooper, Lisa Davis, Ashwini Gore, Rebecca Goldfaden, Leslie Harvill, Lisa Hichkad, Barry Johns, Thomas Jones, Kayla Merritt, Jennifer Sheldon, Jennifer Stanfield, Lindsay Alexander, Kaitlyn Preston, Lindsey Wood, Rajesh Pradhan, Roger DeRaad, Kelli McIntosh, Louis Raymond, Michael Shepperd, Susan McLaughlin, Mary Seifert, Andrew Shepherd, Joseph Aiello, William Durham, Laurie Loudermilk, John Manley, Sabrina Burnette, Stephanie Evans, Tara Johnson, Lance Sloan, Judy Ann Acosta, Stacy Gillham, Katia Sloan, SueAnn Squyres, Michael Rocco, Amret Hawfield, Ben Bagwell, Lauren Richmond, Joseph Soufer, Subha Clarke, Amanda Aliu, Kristine Calabrese, Amanda Davis, Veronica Poma, Tracy Spinola, James Magee, Ricardo Silva, Rushab Choksi, Lorraine Dajani, John Evans, Anil George, Prasanth Krish, Gerard Martins, Mae Sheikh-Ali, David Sutton, Freda Driver, Abraham Hanburry, Laura Hume, Amber Hurst, Matthew Taddeo, Marla Turner, Veronica Yousif, Srinivasan Beddhu, Laith Al-Rabadi, Nikita Abraham, Amalia Caamano, Judy Carle, Victoria Gonce, Kaitlyn Staylor, Na Zhou, Shweta Bansal, Manoj Bhattarai, Kumar Sharma, Subrata Debnath, Aliseiya Garza, Chakradhar Velagapudi, Sergio Rovner, Javier Almeida, Pablo Casares, Verlaine Stewart-Ray, Rene Almaraz, Renata Dayrell, Ana Moncada, Ricardo Pulido, Roxana Rodriquez, Wasim Deeb, Kathryn DeGoursey, Rodel Gloria, Trevor Greene, Robert Miller, Edward Pereira, Miguel Roura, Debbie Domingo, Sasha Dorestin, William Hodge, Cathy Jackson, Deborah Lund, Katrina Taylor, Kenneth Boren, Brittany Cleveland, Sandra Gaiser, Mandeep Sahani, Logan Aldrich, Exodus Edmerson, Edmond Limon, Cole Valletta, Patricia Vasquez, Christopher Provenzano, Navkiranjot Brar, Heather Henderson, Bellovich Keith, Qur Khai, Quresh Khairullah, Gail Makos, Joel Topf, Sherry Gasko, Rosemarie Henschel, Kaitlin Knapp, Teresa Kozlowski, Paula LaFleur, Ashwathy Varughese, Hui Xue, Patricia Wu, Olga Arechiga, Shan Darbeau, Michael Fechter, Stephanie Martinez, Lenita Hanson, Nyla Cooper, Arelis Madera, Jay Cadorna, Rita Sheridan, Helen Sparks, Bradley Eilerman, Susanne Bodine, Wael Eid, Rebecca Flora, Amber Avery, Cashmere Hardy, Mihaela Biscoveanu, Steven Nagelberg, Tracey Cummins, Frederic Rahbari-Oskoui, Anju Oommen, Zohreh Forghani, Stacie Hitchcock, Darya Hosein, Diane Watkins, Minesh Patel, Anthony Lambert, Elizabeth Newman, Autumn Wood, Tammy Ross, Stephany Topping, Jeffrey Mulhern, Lorna Murphy, Ann Vasseur, Gregory Greenwood, Alexander Hadley, Denise Laurienti, Christopher Marshall, Nicholas McLean, Scott Satko, Brandy Caudill, Jacob Maris, Janice Rogers, Cindy Vanhoy, George Thomas, Georges Nakhoul, John O'Toole, Jonathan Taliercio, Leslie Cooperman, Marina Markovic, Barbara Tucky, Devasmita Dev, Alia Hasan, Hima Yalamanchili, Namita Jain, Lesley McNeil, Eric Wines, Jean Park, Adline Ghazi, Mia Hamm, Tejas Patel, Amy Mottl, Emily Chang, Vimal Derebail, Emmie Cole, Anne Froment, Sara Kelley, Jordan Osmond Foster, Vahid Mahabadi, Golriz Jafari, Anita Kamarzarian, Wendy Arriaga, Daisy Arteaga, Rosario Machicado, Genesis Naverrete, Prashant Kumar, Imran Nazeer, Karina Urquia, Tammi Glider, Vickie Jones, Savannah Rucker, Jennifer Wiley, Rahul Pandey, Jesus Arroyo, Harish Pariani, Mohammad Ahmad, Shahin Mozaffari, Erika Perez, Matthew Budoff, Sion Roy, Divya Birudaraju, Ahmed Ghanem, Sajad Hamal, Stephen Aronoff, Elisa Joye Petr, Richard Sachson, Jaime Wiebel, Sana Akram, Laurie Jones, Curtis Knight, Maurie Tarlac, Shahbaz Ahmed, Harold Szerlip, Akinwande Akinfolarin, Ankit Mehta, Shana Camp, Cindy Castro, Zanaida Cooper, Jessica Terry, Ahmed Awad, Bhavya Kothapalli, Ryan Lustig, Serine Alfaress, Hyder Jasim, Mary Parrigon, Dennis Karounos, Sadiq Ahmed, Maggie Berry, Ruth Oremus, Carlos Hernandez-Cassis, Elias Ugwu, Nazia Junejo, Nancy Suazo, Mark Segal, Amir Kazory, Sherry Brown, Tristan Daniels, Sofia Dayi, Renee Hogan, Kathy McCray, Jennifer Stickley, Mahboob Rahman, Mirela Dobre, Lavinia Negrea, Aparna Padiyar, Nishigandha Pradhan, Arash Rashidi, Nagaraju Sarabu, Vicki Donley, Tricia Young, Godson Oguchi, Judepatricks Onyema, Kahla Damianik, Jack Dienes, Judith Plummer-Morgan, Marilyn Roman, Mauver Skipper, Stacey-Ann Villaruel, Krystle Williams, Danny Sugimoto, Jeffrey Dugas, Ismeal Ahmed, Jamie Bhairoo, Dolores Rijos, Huzaifa Salim, Madita Gavrila, Kathryn Lafferty, Ria Rabara, Sally Ruse, Maria Weetman, James Bushnell, Albert Power, Alison Jenkins, Stefanie Jones, Amanda Scott, Cath Byrne, Mark Jesky, Alison Cowley, Emma McHaffie, Holly Waterfall, Jo Taylor, Laura Bough, Thomas Phillips, Barbara Winter-Goodwin, Sui Phin Kon, Iain MacDougall, Eirini Lioudaki, Sapna Shah, Claire Sharpe, Francisco Aguilar, Abegail Hernandez Pena, Conception Pugay, Amelia Te, Hugh Finn, Wasim Hanif, Samiul Mostafa, Alice Aitken, Katharine Draxlbauer, Evelina Grobovaite, Jennifer Kearney, Theresa McCarthy, Giorgio Gentile, Duncan Browne, Palanichamy Chellamuthu, Tabinda Dugal, Terri Chant, Laura Jones, Emily Laity, Megan Miners, James Muir, Elizabeth Swanson, Andrew Frankel, James Tomlinson, Marlon Alegata, Rashid Almasarwah, Anthoula Apostolidi, Maria Vourvou, Thomas Walters, Maarten Taal, Hari Dukka, Nitin Kolhe, Carly McDonald, Kelly White, Shiva Ugni, Smita Gunda, Rotimi Oluyombo, Vicki Brindle, Ping Coutts, Tracy Fuller, Evelyn Nadar, Suresh Ramadoss, Nichola Motherwell, Susannah Pajak, Louise Tonks, Sunil Bhandari, Richard Bodington, Adil Hazara, Dominic Fellowes, Christopher Wong, Christopher Goldsmith, Sherald Barnes, Ann Bennett, Claire Burston, Samantha Hope, Nicola Hunt, Lini Kurian, Richard Fish, Daniela Farrugia, Judy Lee, Emma Sadler, Hannah Turner, Christopher Hill, Henry Brown, Agnes Masengu, Peter Maxwell, Nina Bleakley, Hugh Murtagh, William Petchey, Vivian Yiu, Joanne Kellett, Angharad Williams, Helen Clarke, Victoria Carnall, Sarah Benyon, Caroline Blake, Stephanie Estcourt, Jane Piper, Neal Morgan, Carolyn Hutchinson, Teresa McKinley, Alastair Woodman, Judi Graham, Niall Leonard, John Smyth, Vicki Adell, Samantha Hagan, Ben Caplin, Amin Oomatia, Eleanor Damian, Toluleyi Sobande, Tim Doulton, Michael Delaney, Mahmoud Montasser, Jenny Hansen, David Loader, Angela Moon, Frances Morris, Smeeta Sinha, Chukwuma Chukwu, Amy Hudson, Diane Campbell, Melanie Kershaw, Stephanie Whittaker, Ayesha Irtiza-Ali, Farid Ghalli, Heba Nosseir, Allison Leslie, Kate Trivedi, Donald Fraser, Mohammad Alhadj Ali, Sian Griffin, Farah Latif, Justyna Witczak, Alexa Wonnacott, Lynda Jeffers, Yvette Webley, Paul Phelan, Eve Miller-Hodges, Ailsa Geddes, Margaret Glenwright, Amy Hunter, Thomas Pickett, Jim Moriarty, Linda Hill, Amanda Tyler, Waqar Ayub, Gail Evans, Sue Hewins, Davina Hewitt, Kerry Read, Samira Bell, Leanne Cosgrove, Rachel Craik, Shona Murray, Nitin Bhandary, Holly Coles, Rashmi Easow, Maya Joseph, Arif Khwaja, Yvonne Jackson, Angeline Mbuyisa, Rachel Sellars, Nihil Chitalia, Cynthia Mohandas, Anca Gherman, Charlotte Kamundi, Olumide Olufuwa, Kieran McCafferty, Adedolapo Adeleke, Cara Healy, Damini Jeyarajah, Edward Kinsella-Perks, Richard Smith, Brian Camilleri, Carol Buckman, Jenny Finch, Vanessa Rivers, Andrew Connor, Sheila Carr, Lisa Shainberg, Andrew Lewington, Richard Baker, Suzannah Dorey, Kay Tobin, Rosalyn Wheatley, Debasish Banerjee, Richard Hull, Sharirose Abat, Riny Paul, Mahzuz Karim, Zay Htet, Saad Tufail, Ravi Varma, Karen Convery, Deirdre Fottrell-Gould, Lisa Hudig, Emily Tropman, Thahir Abdul-Samad, Anne Grace, Marie Phipps, Rebecca Suckling, Subash Somalanka, Bhrigu Sood, Pauline Swift, Sarah Acheampong, Kwame Ansu, Martia Augustin, Anna Sampson, Lynn Vinall, Kim Wren, Shamila Wanninayake, Nicholas Wooding, Heather Edwards, Lydia Owen, Stephanie Bolton, Marion Carson, Michael Matthews, Nigel Brunskill, Jorge Jesus-Silva, Alex Howson, Mary Quashie-Akponeware, Hilary Tindall, Chidambaram Nethaji, Helen Eldon, Rajan Patel, Patrick Mark, Alastair Rankin, Michael Sullivan, Kirsty Forsyth, Rowan McDougall, Tanaji Dasgupta, Louisa Davies, Maggie Ryder, Philip Grimmer, Clare Macdonald, Mary Webster, Newcastle Newcastle, Timothy Ellam, Edwin Wong, Christine Meshykhi, Andrea Webster, Peter Wilson, Enric Vilar, Jocelyn Berdeprado, Eunice Doctolero, Lily Wilkinson, Frank McCarroll, Hesham Ammar, Ying Kuan, Conor Moran, Girish Shivashankar, Ryan Campbell, Deborah Glowski, Paula McDermott, Amar Ali, Zuber Patel, Christine Bond, Gillian Whalley, Haitao Zhang, Liu Yang, Lihua Zhang, Tingting Kan, Ling Zhu, Jinghong Zhao, Weiping Hou, Jing Wu, Hong Cheng, Weijing Bian, Zhirui Zhao, Fengmin Shao, Huixia Cao, Xiaojing Jiao, Peiyuan Niu, Jianying Niu, Yu Chen, Lihong Zhang, Shenglang Zhu, Haiyan Lin, Shaopeng Yao, Jiehui Chen, Ying Jiang, Ying Hu, Huaying Xiao, Fuye Yang, Xinzhou Zhang, Baochun Guo, Qiu Jin, Lixia Liu, Xiangcheng Xiao, Yanyun Xie, Ting Meng, Chuanwen Xu, Jie Huang, Yanmei Xu, Weixin Kong, Xiaoliang Wang, Qianpan Liu, Xueying Wang, Ming Gao, Xiumei Hu, Ying Lu, Li Wang, Kun Peng, Wei Wang, Qiuhong Gong, Jianfang Cai, Xiaojue Li, Xuejiao Liu, Shuhan Zhou, Hong Liu, Yao Weng, Shuai Tang, Yao Yao, Shi Zhao, Chen Cheng, Wei Wei, Na Li, Sadanah Aqashiah Mazlan, Alia Zubaidah Bahtar, Elliyyin Katiman, Noraini Othman, Lily Mushahar, Nurdiana Mazlan, Nur Sharafina Safiee, Sarasa Ramasamy, Hin Seng Wong, Hajar Ahmad Rosdi, Esther Zhao Zhi Tan, Ju Fan Tay, Kok Seng Teng, Hasnah Yahaya, Wen Jiun Liu, Lik Wee Ee, Kenneth Kay Leong Khoo, Yuana Mohd Yusoff, Fariz Safhan Mohamad Nor, Mohd Kamil Ahmad, Mohd Ramli Seman, Clare Hui Hong Tan, Laura Lui Sian Ngu, Jaime Yoke May Chan, Javelin Peji, Chek Loong Loh, Yee Yan Lee, Sridhar Ramanaidu, Kah Mean Thong, Yik Hong Wong, Suria Junus, Chen Hua Ching, Mohammad Faisal Asmee, Ku Ruziana Ku Md Razi, Chun Leong Low, Christopher Sze Bing Sim, Zhang Duan Tham, Noor Kamila Abdullah, Tai Meng Chen, Yong Chieh Chan, Eason Chang, Huan Yean Kang, Kai Quan Lee, Sue Ann Lee, Aik Kheng Lee, Jeevika Vinathan, Rizna Abdul Cader, Ruslinda Mustafar, Lydia Kamaruzaman, Rozita Mohd, Rahimah Ismail, Chong Men Leong, Chee Koon Low, Liang Wei Wong, Norlezah Adnan, Sabariah Ibrahim, Mohamad Zaimi Abdul Wahab, Sunita Bavanandan, Yik Shen Lim, Wan Hazlina Wan Mohamad, Siti Munirah Jaafar, Nur Ashykeen Mohd Fauzi, Aziee Sudin, Soo Kun Lim, Chye Chung Gan, Albert Hing, Wan Ahmad Faizal Alaidin Razali, Yew Fong Liew, Chelsia Bao Tyng Chan, Mei Chih Cheng, Yu Chen Ong, Loke Meng Ong, Farah Amalina Mohamed Affandi, Korina Rahmat, Ban Chai Peng, Masayu Amat, Nuzaimin Hadafi Ahmad, Doo Yee Mah, Yi Loon Tye, Zaid Azhari, Siti Nabilah Mohamad Zaini, Mohd Aidil Musa, Norazinizah Ahmad Miswan, Rafizanur Ramli, Nor Aziah Ahmad, Bak Leong Goh, Nurul Izah Ahmad, Fairol Huda Ibrahim, Tze Jian Ng, Malini Shanmuganathan, Li Lian Tay, Zaiha Harun, Salmi Ramli, Nurul 'Ain Yusof, Rossenizal Abd Rahman, Muhammad Iqbal Abdul Hafidz, Nur Hidayati Mohd Sharif, Irda Yasmoon Awang, Eitaro Nakashima, Rui Imamine, Makiko Minatoguchi, Yukari Miura, Miduki Nakaoka, Yoshiki Suzuki, Hitomi Yoshikawa, Koki Shin, Kanae Fujita, Misuzu Iwasa, Haruka Sasajima, Airi Sato, Yoshiyuki Hamamoto, Yuki Fujita, Takuya Haraguchi, Takanori Hyo, Kiyohiro Izumi, Toshiyuki Komiya, Sodai Kubota, Takeshi Kurose, Hitoshi Kuwata, Susumu Nakatani, Kaori Oishi, Saki Okamoto, Kaori Okamura, Jun Takeoka, Nagaaki Tanaka, Katsuya Tanigaki, Naohiro Toda, Koin Watanabe, Hiromi Komori, Rika Kumuji, Asako Takesada, Aya Tanaka, Shoichi Maruyama, Tomonori Hasegawa, Akiko Ishiguro, Takuji Ishimoto, Kazuhiro Ito, Yutaka Kamimura, Noritoshi Kato, Sawako Kato, Hiroshi Kojima, Tomoki Kosugi, Kayaho Maeda, Masasi Mizuno, Shoji Saito, Hitomi Sato, Yuka Sato, Yasuhiro Suzuki, Akihito Tanaka, Yoshinari Yasuda, Fujiko Hasegawa, Maiko Hayashi, Shizuka Higashi, Kaho Shimamura, Momoko Sumi, Kazuki Tajima, Chimaki Unekawa, Kana Wakayama, Yukiko Wakita, Takatoshi Otani, Ayako Imai, Sayaka Kawashima, Eri Kogure, Tomoe Sato, Misato Takezawa, Shinya Yoshida, Hideo Araki, Yuko Katsuda, Masahiro Konishi, Takahiro Matsunaga, Masashi Oe, Kunihiro Ogane, Masato Sakai, Tomoko Takahashi, Takahiro Yamano, Takuya Yokoyama, Hitomi Ito, Masayo Katayama, Emi Kuroda, Toru Ikeda, Takuma Kojo, Etsuo Yoshidome, Rieko Mizumachi, Akane Yamamoto, Narihisa Yamasaki, Yoshihiko Yamasaki, Jun Wada, Jun Eguchi, Chigusa Higuchi, Akihiro Katayama, Masaru Kinomura, Masashi Kitagawa, Shinji Kitamura, Satoshi Miyamoto, Hiroshi Morinaga, Atsuko Nakatsuka, Ichiro Nojima, Kenichi Shikata, Hitoshi Sugiyama, Katsuyuki Tanabe, Kenji Tsuji, Haruhito Uchida, Mayu Watanabe, Chie Hashimoto, Takahiro Kato, Sayaka Yamamoto, Takehiko Wada, Masafumi Fukagawa, Naoto Hamano, Masahiro Koizumi, Hirotaka Komaba, Yosuke Nakagawa, Michiyo Iwamoto, Kosuke Masutani, Akane Katanosaka, Mayu Kiyota, Hikari Uchi, Yuka Ueda, Sonoka Yamamoto, Hajime Nagasu, Seiji Itano, Tsukasa Iwakura, Hiroyuki Kadoya, Eiichiro Kanda, Naoki Kashihara, Kengo Kidokoro, Megumi Kondo, Tamaki Sasaki, Minoru Satoh, Atsuyuki Tokuyama, Reina Umeno, Yoshihisa Wada, Toshiya Yamamoto, Yu Yamanouchi, Masumi Abe, Yoko Inukai, Wataru Ogawa, Shunichiro Asahara, Hideki Fujii, Shunsuke Goto, Yushi Hirota, Tetsuya Hosooka, Keiji Kono, Shinichi Nishi, Yuko Okada, Kazuhiko Sakaguchi, Kenji Sugawara, Michiko Takahashi, Tomoko Takai, Yoshikazu Tamori, Kentaro Watanabe, Miyu Kitajima, Misaki Nishi, Junko Wada, Yasuhiko Ito, Hideki Kamiya, Akimasa Asai, Nao Asai, Saeko Asano, Shogo Banno, Yohei Ejima, Hanako Hase, Tomohide Hayami, Tatsuhito Himeno, Takahiro Ishikawa, Mayumi Ito, Shiho Iwagaitsu, Rina Kasagi, Yoshiro Kato, Makoto Kato, Koichi Kato, Takayuki Katsuno, Miyuka Kawai, Hiroshi Kinashi, Masaki Kondo, Masako Koshino, Naoya Matsuoka, Yoshiaki Morishita, Mikio Motegi, Jiro Nakamura, Hiromi Shimoda, Hirokazu Sugiyama, Shin Tsunekawa, Makoto Yamaguchi, Kazuyo Takahashi, Hirotaka Watada, Takashi Funayama, Yasuhiko Furukawa, Tomohito Gohda, Hiromasa Goto, Hideyoshi Kaga, Yasuhiko Kanaguchi, Akio Kanazawa, Kayo Kaneko, Toshiki Kano, Masao Kihara, Shogo Kimura, Takashi Kobayashi, Masayuki Maiguma, Yuko Makita, Satoshi Mano, Tomoya Mita, Takeshi Miyatsuka, Maki Murakoshi, Masahiro Muto, Masami Nakata, Junichiro Nakata, Yuya Nishida, Nao Nohara, Takeshi Ogihara, Daisuke Sato, Junko Sato, Hiroaki Sato, Yusuke Suzuki, Ruka Suzuki, Hitoshi Suzuki, Miyuki Takagi, Yoshifumi Tamura, Toyoyoshi Uchida, Seiji Ueda, Miki Asawa, Minako Miyaji, Eri Nagashima, Yoshie Shibata, Eri Yanagisawa, Toshimasa Yamauchi, Yosuke Hirakawa, Hiroshi Nishi, Nobuhiro Shojima, Satoko Horikawa, Yukiko Nakayama, Naoko Yamada, Yuki Omori, Shintaro Yano, Miyabi Ioka, Nahoko Kuwabara, Remi Nagano, Megumi Nozawa, Yumi Osawa, Hiroshi Maegawa, Shinji Kume, Shinichi Araki, Itsuko Miyazawa, Katsutaro Morino, Ikuko Kawai, Masumi Sobata, Motoko Takaoka, Yasushi Iwaita, Takashi Udagawa, Ami Inamori, Aya Kawase, Aya Yamanaka, Hitoshi Shimano, Akiko Fujita, Hitoshi Iwasaki, Hirayasu Kai, Yoshinori Osaki, Chie Saito, Motohiro Sekiya, Ryoya Tsunoda, 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Teresa, Lafleur, Paula, Varughese, Ashwathy, Xue, Hui, Wu, Patricia, Arechiga, Olga, Darbeau, Shan, Fechter, Michael, Martinez, Stephanie, Hanson, Lenita, Cooper, Nyla, Madera, Areli, Cadorna, Jay, Sheridan, Rita, Sparks, Helen, Eilerman, Bradley, Bodine, Susanne, Eid, Wael, Flora, Rebecca, Avery, Amber, Hardy, Cashmere, Biscoveanu, Mihaela, Nagelberg, Steven, Cummins, Tracey, Rahbari-Oskoui, Frederic, Oommen, Anju, Forghani, Zohreh, Hitchcock, Stacie, Hosein, Darya, Watkins, Diane, Patel, Minesh, Lambert, Anthony, Newman, Elizabeth, Wood, Autumn, Ross, Tammy, Topping, Stephany, Mulhern, Jeffrey, Murphy, Lorna, Vasseur, Ann, Greenwood, Gregory, Hadley, Alexander, Laurienti, Denise, Marshall, Christopher, Mclean, Nichola, Satko, Scott, Caudill, Brandy, Maris, Jacob, Rogers, Janice, Vanhoy, Cindy, Thomas, George, Nakhoul, George, O'Toole, John, Taliercio, Jonathan, Cooperman, Leslie, Markovic, Marina, Tucky, Barbara, Dev, Devasmita, Hasan, Alia, Yalamanchili, Hima, Jain, Namita, Mcneil, Lesley, Wines, Eric, Park, Jean, Ghazi, Adline, Hamm, Mia, Patel, Teja, Mottl, Amy, Chang, Emily, Derebail, Vimal, Cole, Emmie, Froment, Anne, Kelley, Sara, Osmond Foster, Jordan, Mahabadi, Vahid, Jafari, Golriz, Kamarzarian, Anita, Arriaga, Wendy, Arteaga, Daisy, Machicado, Rosario, Naverrete, Genesi, Kumar, Prashant, Nazeer, Imran, Urquia, Karina, Glider, Tammi, Jones, Vickie, Rucker, Savannah, Wiley, Jennifer, Pandey, Rahul, Arroyo, Jesu, Pariani, Harish, Ahmad, Mohammad, Mozaffari, Shahin, Perez, Erika, Budoff, Matthew, Roy, Sion, Birudaraju, Divya, Ghanem, Ahmed, Hamal, Sajad, Aronoff, Stephen, Joye Petr, Elisa, Sachson, Richard, Wiebel, Jaime, Akram, Sana, Jones, Laurie, Knight, Curti, Tarlac, Maurie, Ahmed, Shahbaz, Szerlip, Harold, Akinfolarin, Akinwande, Mehta, Ankit, Camp, Shana, Castro, Cindy, Cooper, Zanaida, Terry, Jessica, Awad, Ahmed, Kothapalli, Bhavya, Lustig, Ryan, Alfaress, Serine, Jasim, Hyder, Parrigon, Mary, Karounos, Denni, Ahmed, Sadiq, Berry, Maggie, Oremus, Ruth, Hernandez-Cassis, Carlo, Ugwu, Elia, Junejo, Nazia, Suazo, Nancy, Segal, Mark, Kazory, Amir, Brown, Sherry, Daniels, Tristan, Dayi, Sofia, Hogan, Renee, Mccray, Kathy, Stickley, Jennifer, Rahman, Mahboob, Dobre, Mirela, Negrea, Lavinia, Padiyar, Aparna, Pradhan, Nishigandha, Rashidi, Arash, Sarabu, Nagaraju, Donley, Vicki, Young, Tricia, Oguchi, Godson, Onyema, Judepatrick, Damianik, Kahla, Dienes, Jack, Plummer-Morgan, Judith, Roman, Marilyn, Skipper, Mauver, Villaruel, Stacey-Ann, Williams, Krystle, Sugimoto, Danny, Dugas, Jeffrey, Ahmed, Ismeal, Bhairoo, Jamie, Rijos, Dolore, Salim, Huzaifa, Gavrila, Madita, Lafferty, Kathryn, Rabara, Ria, Ruse, Sally, Weetman, Maria, Bushnell, Jame, Power, Albert, Jenkins, Alison, Jones, Stefanie, Scott, Amanda, Byrne, Cath, Jesky, Mark, Cowley, Alison, Mchaffie, Emma, Waterfall, Holly, Taylor, Jo, Bough, Laura, Phillips, Thoma, Winter-Goodwin, Barbara, Phin Kon, Sui, Macdougall, Iain, Lioudaki, Eirini, Shah, Sapna, Sharpe, Claire, Aguilar, Francisco, Hernandez Pena, Abegail, Pugay, Conception, Te, Amelia, Finn, Hugh, Hanif, Wasim, Mostafa, Samiul, Aitken, Alice, Draxlbauer, Katharine, Grobovaite, Evelina, Kearney, Jennifer, Mccarthy, Theresa, Gentile, Giorgio, Browne, Duncan, Chellamuthu, Palanichamy, Dugal, Tabinda, Chant, Terri, Jones, Laura, Laity, Emily, Miners, Megan, Muir, Jame, Swanson, Elizabeth, Frankel, Andrew, Tomlinson, Jame, Alegata, Marlon, Almasarwah, Rashid, Apostolidi, Anthoula, Vourvou, Maria, Walters, Thoma, Taal, Maarten, Dukka, Hari, Kolhe, Nitin, Mcdonald, Carly, White, Kelly, Ugni, Shiva, Gunda, Smita, Oluyombo, Rotimi, Brindle, Vicki, Coutts, Ping, Fuller, Tracy, Nadar, Evelyn, Ramadoss, Suresh, Motherwell, Nichola, Pajak, Susannah, Tonks, Louise, Bhandari, Sunil, Bodington, Richard, Hazara, Adil, Fellowes, Dominic, Wong, Christopher, Goldsmith, Christopher, Barnes, Sherald, Bennett, Ann, Burston, Claire, Hope, Samantha, Hunt, Nicola, Kurian, Lini, Fish, Richard, Farrugia, Daniela, Lee, Judy, Sadler, Emma, Turner, Hannah, Hill, Christopher, Brown, Henry, Masengu, Agne, Maxwell, Peter, Bleakley, Nina, Murtagh, Hugh, Petchey, William, Yiu, Vivian, Kellett, Joanne, Williams, Angharad, Clarke, Helen, Carnall, Victoria, Benyon, Sarah, Blake, Caroline, Estcourt, Stephanie, Piper, Jane, Morgan, Neal, Hutchinson, Carolyn, Mckinley, Teresa, Woodman, Alastair, Graham, Judi, Leonard, Niall, Smyth, John, Adell, Vicki, Hagan, Samantha, Caplin, Ben, Oomatia, Amin, Damian, Eleanor, Sobande, Toluleyi, Doulton, Tim, Delaney, Michael, Montasser, Mahmoud, Hansen, Jenny, Loader, David, Moon, Angela, Morris, France, Sinha, Smeeta, Chukwu, Chukwuma, Hudson, Amy, Campbell, Diane, Kershaw, Melanie, Whittaker, Stephanie, Irtiza-Ali, Ayesha, Ghalli, Farid, Nosseir, Heba, Leslie, Allison, Trivedi, Kate, Fraser, Donald, Alhadj Ali, Mohammad, Griffin, Sian, Latif, Farah, Witczak, Justyna, Wonnacott, Alexa, Jeffers, Lynda, Webley, Yvette, Phelan, Paul, Miller-Hodges, Eve, Geddes, Ailsa, Glenwright, Margaret, Hunter, Amy, Pickett, Thoma, Moriarty, Jim, Hill, Linda, Tyler, Amanda, Ayub, Waqar, Evans, Gail, Hewins, Sue, Hewitt, Davina, Read, Kerry, Bell, Samira, Cosgrove, Leanne, Craik, Rachel, Murray, Shona, Bhandary, Nitin, Coles, Holly, Easow, Rashmi, Joseph, Maya, Khwaja, Arif, Jackson, Yvonne, Mbuyisa, Angeline, Sellars, Rachel, Chitalia, Nihil, Mohandas, Cynthia, Gherman, Anca, Kamundi, Charlotte, Olufuwa, Olumide, Mccafferty, Kieran, Adeleke, Adedolapo, Healy, Cara, Jeyarajah, Damini, Kinsella-Perks, Edward, Smith, Richard, Camilleri, Brian, Buckman, Carol, Finch, Jenny, Rivers, Vanessa, Connor, Andrew, Carr, Sheila, Shainberg, Lisa, Lewington, Andrew, Baker, Richard, Dorey, Suzannah, Tobin, Kay, Wheatley, Rosalyn, Banerjee, Debasish, Hull, Richard, Abat, Sharirose, Paul, Riny, Karim, Mahzuz, Htet, Zay, Tufail, Saad, Varma, Ravi, Convery, Karen, Fottrell-Gould, Deirdre, Hudig, Lisa, Tropman, Emily, Abdul-Samad, Thahir, Grace, Anne, Phipps, Marie, Suckling, Rebecca, Somalanka, Subash, Sood, Bhrigu, Swift, Pauline, Acheampong, Sarah, Ansu, Kwame, Augustin, Martia, Sampson, Anna, Vinall, Lynn, Wren, Kim, Wanninayake, Shamila, Wooding, Nichola, Edwards, Heather, Owen, Lydia, Bolton, Stephanie, Carson, Marion, Matthews, Michael, Brunskill, Nigel, Jesus-Silva, Jorge, Howson, Alex, Quashie-Akponeware, Mary, Tindall, Hilary, Nethaji, Chidambaram, Eldon, Helen, Patel, Rajan, Mark, Patrick, Rankin, Alastair, Sullivan, Michael, Forsyth, Kirsty, Mcdougall, Rowan, Dasgupta, Tanaji, Davies, Louisa, Ryder, Maggie, Grimmer, Philip, Macdonald, Clare, Webster, Mary, Newcastle, Newcastle, Ellam, Timothy, Wong, Edwin, Meshykhi, Christine, Webster, Andrea, Wilson, Peter, Vilar, Enric, Berdeprado, Jocelyn, Doctolero, Eunice, Wilkinson, Lily, Mccarroll, Frank, Ammar, Hesham, Kuan, Ying, Moran, Conor, Shivashankar, Girish, Campbell, Ryan, Glowski, Deborah, Mcdermott, Paula, Ali, Amar, Patel, Zuber, Bond, Christine, Whalley, Gillian, Zhang, Haitao, Yang, Liu, Zhang, Lihua, Kan, Tingting, Zhu, Ling, Zhao, Jinghong, Hou, Weiping, Wu, Jing, Cheng, Hong, Bian, Weijing, Zhao, Zhirui, Shao, Fengmin, Cao, Huixia, Jiao, Xiaojing, Niu, Peiyuan, Niu, Jianying, Chen, Yu, Zhang, Lihong, Zhu, Shenglang, Lin, Haiyan, Yao, Shaopeng, Chen, Jiehui, Jiang, Ying, Hu, Ying, Xiao, Huaying, Yang, Fuye, Zhang, Xinzhou, Guo, Baochun, Jin, Qiu, Liu, Lixia, Xiao, Xiangcheng, Xie, Yanyun, Meng, Ting, Xu, Chuanwen, Huang, Jie, Xu, Yanmei, Kong, Weixin, Wang, Xiaoliang, Liu, Qianpan, Wang, Xueying, Gao, Ming, Hu, Xiumei, Lu, Ying, Wang, Li, Peng, Kun, Wang, Wei, Gong, Qiuhong, Cai, Jianfang, Li, Xiaojue, Liu, Xuejiao, Zhou, Shuhan, Liu, Hong, Weng, Yao, Tang, Shuai, Yao, Yao, Zhao, Shi, Cheng, Chen, Wei, Wei, Li, Na, Aqashiah Mazlan, Sadanah, Zubaidah Bahtar, Alia, Katiman, Elliyyin, Othman, Noraini, Mushahar, Lily, Mazlan, Nurdiana, Sharafina Safiee, Nur, Ramasamy, Sarasa, Seng Wong, Hin, Ahmad Rosdi, Hajar, Zhao Zhi Tan, Esther, Fan Tay, Ju, Seng Teng, Kok, Yahaya, Hasnah, Jiun Liu, Wen, Wee Ee, Lik, Kay Leong Khoo, Kenneth, Mohd Yusoff, Yuana, Safhan Mohamad Nor, Fariz, Kamil Ahmad, Mohd, Ramli Seman, Mohd, Hui Hong Tan, Clare, Lui Sian Ngu, Laura, Yoke May Chan, Jaime, Peji, Javelin, Loong Loh, Chek, Yan Lee, Yee, Ramanaidu, Sridhar, Mean Thong, Kah, Hong Wong, Yik, Junus, Suria, Hua Ching, Chen, Faisal Asmee, Mohammad, Ruziana Ku Md Razi, Ku, Leong Low, Chun, Sze Bing Sim, Christopher, Duan Tham, Zhang, Kamila Abdullah, Noor, Meng Chen, Tai, Chieh Chan, Yong, Chang, Eason, Yean Kang, Huan, Quan Lee, Kai, Ann Lee, Sue, Kheng Lee, Aik, Vinathan, Jeevika, Abdul Cader, Rizna, Mustafar, Ruslinda, Kamaruzaman, Lydia, Mohd, Rozita, Ismail, Rahimah, Men Leong, Chong, Koon Low, Chee, Wei Wong, Liang, Adnan, Norlezah, Ibrahim, Sabariah, Zaimi Abdul Wahab, Mohamad, Bavanandan, Sunita, Shen Lim, Yik, Hazlina Wan Mohamad, Wan, Munirah Jaafar, Siti, Ashykeen Mohd Fauzi, Nur, Sudin, Aziee, Kun Lim, Soo, Chung Gan, Chye, Hing, Albert, Ahmad Faizal Alaidin Razali, Wan, Fong Liew, Yew, Bao Tyng Chan, Chelsia, Chih Cheng, Mei, Chen Ong, Yu, Meng Ong, Loke, Amalina Mohamed Affandi, Farah, Rahmat, Korina, Chai Peng, Ban, Amat, Masayu, Hadafi Ahmad, Nuzaimin, Yee Mah, Doo, Loon Tye, Yi, Azhari, Zaid, Nabilah Mohamad Zaini, Siti, Aidil Musa, Mohd, Ahmad Miswan, Norazinizah, Ramli, Rafizanur, Aziah Ahmad, Nor, Leong Goh, Bak, Izah Ahmad, Nurul, Huda Ibrahim, Fairol, Jian Ng, Tze, Shanmuganathan, Malini, Lian Tay, Li, Harun, Zaiha, Ramli, Salmi, 'Ain Yusof, Nurul, Abd Rahman, Rossenizal, Iqbal Abdul Hafidz, Muhammad, Hidayati Mohd Sharif, Nur, Yasmoon Awang, Irda, Nakashima, Eitaro, Imamine, Rui, Minatoguchi, Makiko, Miura, Yukari, Nakaoka, Miduki, Suzuki, Yoshiki, Yoshikawa, Hitomi, Shin, Koki, Fujita, Kanae, Iwasa, Misuzu, Sasajima, Haruka, Sato, Airi, Hamamoto, Yoshiyuki, Fujita, Yuki, Haraguchi, Takuya, Hyo, Takanori, Izumi, Kiyohiro, Komiya, Toshiyuki, Kubota, Sodai, Kurose, Takeshi, Kuwata, Hitoshi, Nakatani, Susumu, Oishi, Kaori, Okamoto, Saki, Okamura, Kaori, Takeoka, Jun, Tanaka, Nagaaki, Tanigaki, Katsuya, Toda, Naohiro, Watanabe, Koin, Komori, Hiromi, Kumuji, Rika, Takesada, Asako, Tanaka, Aya, Maruyama, Shoichi, Hasegawa, Tomonori, Ishiguro, Akiko, Ishimoto, Takuji, Ito, Kazuhiro, Kamimura, Yutaka, Kato, Noritoshi, Kato, Sawako, Kojima, Hiroshi, Kosugi, Tomoki, Maeda, Kayaho, Mizuno, Masasi, Saito, Shoji, Sato, Hitomi, Sato, Yuka, Suzuki, Yasuhiro, Tanaka, Akihito, Yasuda, Yoshinari, Hasegawa, Fujiko, Hayashi, Maiko, Higashi, Shizuka, Shimamura, Kaho, Sumi, Momoko, Tajima, Kazuki, Unekawa, Chimaki, Wakayama, Kana, Wakita, Yukiko, Otani, Takatoshi, Imai, Ayako, Kawashima, Sayaka, Kogure, Eri, Sato, Tomoe, Takezawa, Misato, Yoshida, Shinya, Araki, Hideo, Katsuda, Yuko, Konishi, Masahiro, Matsunaga, Takahiro, Oe, Masashi, Ogane, Kunihiro, Sakai, Masato, Takahashi, Tomoko, Yamano, Takahiro, Yokoyama, Takuya, Ito, Hitomi, Katayama, Masayo, Kuroda, Emi, Ikeda, Toru, Kojo, Takuma, Yoshidome, Etsuo, Mizumachi, Rieko, Yamamoto, Akane, Yamasaki, Narihisa, Yamasaki, Yoshihiko, Wada, Jun, Eguchi, Jun, Higuchi, Chigusa, Katayama, Akihiro, Kinomura, Masaru, Kitagawa, Masashi, Kitamura, Shinji, Miyamoto, Satoshi, Morinaga, Hiroshi, Nakatsuka, Atsuko, Nojima, Ichiro, Shikata, Kenichi, Sugiyama, Hitoshi, Tanabe, Katsuyuki, Tsuji, Kenji, Uchida, Haruhito, Watanabe, Mayu, Hashimoto, Chie, Kato, Takahiro, Yamamoto, Sayaka, Wada, Takehiko, Fukagawa, Masafumi, Hamano, Naoto, Koizumi, Masahiro, Komaba, Hirotaka, Nakagawa, Yosuke, Iwamoto, Michiyo, Masutani, Kosuke, Katanosaka, Akane, Kiyota, Mayu, Uchi, Hikari, Ueda, Yuka, Yamamoto, Sonoka, Nagasu, Hajime, Itano, Seiji, Iwakura, Tsukasa, Kadoya, Hiroyuki, Kanda, Eiichiro, Kashihara, Naoki, Kidokoro, Kengo, Kondo, Megumi, Sasaki, Tamaki, Satoh, Minoru, Tokuyama, Atsuyuki, Umeno, Reina, Wada, Yoshihisa, Yamamoto, Toshiya, Yamanouchi, Yu, Abe, Masumi, Inukai, Yoko, Ogawa, Wataru, Asahara, Shunichiro, Fujii, Hideki, Goto, Shunsuke, Hirota, Yushi, Hosooka, Tetsuya, Kono, Keiji, Nishi, Shinichi, Okada, Yuko, Sakaguchi, Kazuhiko, Sugawara, Kenji, Takahashi, Michiko, Takai, Tomoko, Tamori, Yoshikazu, Watanabe, Kentaro, Kitajima, Miyu, Nishi, Misaki, Wada, Junko, Ito, Yasuhiko, Kamiya, Hideki, Asai, Akimasa, Asai, Nao, Asano, Saeko, Banno, Shogo, Ejima, Yohei, Hase, Hanako, Hayami, Tomohide, Himeno, Tatsuhito, Ishikawa, Takahiro, Ito, Mayumi, Iwagaitsu, Shiho, Kasagi, Rina, Kato, Yoshiro, Kato, Makoto, Kato, Koichi, Katsuno, Takayuki, Kawai, Miyuka, Kinashi, Hiroshi, Kondo, Masaki, Koshino, Masako, Matsuoka, Naoya, Morishita, Yoshiaki, Motegi, Mikio, Nakamura, Jiro, Shimoda, Hiromi, Sugiyama, Hirokazu, Tsunekawa, Shin, Yamaguchi, Makoto, Takahashi, Kazuyo, Watada, Hirotaka, Funayama, Takashi, Furukawa, Yasuhiko, Gohda, Tomohito, Goto, Hiromasa, Kaga, Hideyoshi, Kanaguchi, Yasuhiko, Kanazawa, Akio, Kaneko, Kayo, Kano, Toshiki, Kihara, Masao, Kimura, Shogo, Kobayashi, Takashi, Maiguma, Masayuki, Makita, Yuko, Mano, Satoshi, Mita, Tomoya, Miyatsuka, Takeshi, Murakoshi, Maki, Muto, Masahiro, Nakata, Masami, Nakata, Junichiro, Nishida, Yuya, Nohara, Nao, Ogihara, Takeshi, Sato, Daisuke, Sato, Junko, Sato, Hiroaki, Suzuki, Yusuke, Suzuki, Ruka, Suzuki, Hitoshi, Takagi, Miyuki, Tamura, Yoshifumi, Uchida, Toyoyoshi, Ueda, Seiji, Asawa, Miki, Miyaji, Minako, Nagashima, Eri, Shibata, Yoshie, Yanagisawa, Eri, Yamauchi, Toshimasa, Hirakawa, Yosuke, Nishi, Hiroshi, Shojima, Nobuhiro, Horikawa, Satoko, Nakayama, Yukiko, Yamada, Naoko, Omori, Yuki, Yano, Shintaro, Ioka, Miyabi, Kuwabara, Nahoko, Nagano, Remi, Nozawa, Megumi, Osawa, Yumi, Maegawa, Hiroshi, Kume, Shinji, Araki, Shinichi, Miyazawa, Itsuko, Morino, Katsutaro, Kawai, Ikuko, Sobata, Masumi, Takaoka, Motoko, Iwaita, Yasushi, Udagawa, Takashi, Inamori, Ami, Kawase, Aya, Yamanaka, Aya, Shimano, Hitoshi, Fujita, Akiko, Iwasaki, Hitoshi, Kai, Hirayasu, Osaki, Yoshinori, Saito, Chie, Sekiya, Motohiro, Tsunoda, Ryoya, Yamagata, Kunihiro, Nakamura, Rikako, Yamada, Aiko, Ohsugi, Mitsuru, Awazawa, Motoharu, Bouchi, Ryotaro, Hashimoto, Shota, Hashimoto, Makiko, Hisatake, Tomoko, Ihana, Noriko, Ishizuka, Koko, Izumi, Kazuo, Kajio, Hiroshi, Kobayashi, Michi, Kodani, Noriko, Maruyama, Koji, Matsumoto, Michihiro, Matsushita, Maya, Nakamura, Tomoka, Sugiyama, Takehiro, Tanabe, Akiyo, Terakawa, Aiko, Ueki, Kojiro, Orimo, Yuko, Ozawa, Takako, Takahira, Eriko, Yamasaki, Yoshimitsu, Haneda, Masakazu, Tomita, Tadahiro, Akimoto, Saori, Fujimoto, Akihiro, Ishihara, Kenji, Murakami, Chiho, Nishiyama, Akiyo, Toyonaga, Yukiko, Uozumi, Kana, Yamaji, Yukihiro, Shigehara, Tetsuya, Okajyo, Jun, Shimizu, Yukihiro, Iwasaki, Shingo, Fukao, Yuki, Furusho, Megumi, Nunokawa, Shintaro, Katagiri, Hideki, Izumi, Tomohito, Kaneko, Keizo, Kodama, Shinjiro, Miyazaki, Mariko, Munakata, Yuichiro, Nagasawa, Tasuku, Oe, Yuji, Sugawara, Hiroto, Takahashi, Kei, Hirata, Kazushige, Inomata, Keiko, Otomo, Shoko, Uchida, Taeko, Yamashita, Chigusa, Kiyosue, Arihiro, Tamura, Ryota, Dube, Francoi, Bolduc, Marilene, Talbot, Marie-Christine, Cham, Leslie, Lai, Vesta, Tse, Josephine, Jolly, Shivinder, Duck, Tabbatha, Lyle, Scott, Epp, Rachel, Galloway, Camille, Haskett, Susan, Matvienko, Elizabeta, Paulsen, Liam, Moist, Louise, Lozon, Zabrina, Ramsey, Tina, Whitmore, Brittany, Al-Zeer, Bader, Macleod, Paula, O'Sullivan, Aoife, Sheriff, Zainab, Tholl, Sam, Pandey, Amritanshu, Armstrong, Samantha, Gebeyehu, Bethelihem, Toth, Patrick, Goldenberg, Ronald, Jahangiriesmaili, Mahsa, Sanguila, Shariff, Suresh, Neethi, Talsania, Tanvi, Zalunardo, Nadia, Agharazii, Mohsen, Roussel, Marie-Pier, Saillant, Annie, Samson, France, Bajaj, Harpreet, Bhavsar, Miken, Dhall, Parul, Dhillon, Gagandeep, Grewal, Bhupinder, Nimbkar, Taniya, Madore, Francoi, Marcotte, Guylaine, Steen, Oren, Bullen, Mathura, Raguwaran, Shayani, Valleteau, Andre, Langlois, Marie-France, Brown, Christine, Steele, Andrew, Garrity, Melissa, Ghate, Taneera, Robinson, Holly, Tolibas, Michael, Tailor, Chetna, Elliott, Lauren, McClary-Wright, Christine, Boreky, Fadia, Fikry, Sameh, Ali, Ayesha, Barot, Chintankumar, Basily, Wagdy, Saram, Thisun, Varad, Vinay, Khandwala, Hasnain, Aguilera, Alex, Alvarez, Patricia, Gill, Balwinder, Huda, Nazihah, Navivala, Aamir, Pinto, Daniel, Bevilacqua, Micheli, Fung, Elaine, Hernandez, Geraldine, Mann, Puneet, Saini, Jaskiran, Rabasa-Lhoret, Remi, Bovan, Danijela, Devaux, Marie, Barnini, Cecilia, Leoncini, Giovanna, Manco, Luca, Nobili, Giulia, Piemontese, Matteo, Aucella, Filippo, Grifa, Rachele, Totaro, Francesco, La Manna, Gaetano, Capelli, Irene, Cianciolo, Giuseppe, Lerario, Sarah, Zappulo, Fulvia, Rosati, Alberto, Fani, Filippo, Spatoliatore, Giuseppe, Gesualdo, Loreto, Pesce, Francesco, Russo, Maria, Zippo, Maria, Cafiero, Cesira, Motta, Daria, Bianco, Simona, Bilucaglia, Donatella, Messa, Piergiorgio, Pavone, Laura, Tripodi, Federica, Vettoretti, Simone, Fioretto, Paola, Carraro, Gianni, Farnia, Filippo, Postal, Anna, D'Amelio, Alessandro, Cardone, Antonio, Piccinni, Giovanni, Aloisi, Annalisa, Scolari, Francesco, Alberici, Federico, Guerini, Alice, Saccà, Chiara, Salviani, Chiara, Zani, Roberta, DE NICOLA, Luca, Garofalo, Carlo, Elena Liberti, Maria, Minutolo, Roberto, Pennino, Luigi, Polese, Lucio, Mené, Paolo, Barberi, Simona, Falcone, Clorinda, Russo, Francesco, Caroppo, Maurizio, Santorelli, Gennaro, Rivera, Rodolfo, Santoro, Domenico, Giuffrida, Alfio, Zirino, Fortunata, Calvi, Cristina, Estienne, Luca, Gambaro, Giovanni, Gangemi, Concetta, Ortalda, Vittorio, Pessolano, Giuseppina, Grandaliano, Giuseppe, Baccaro, Rocco, Ferraro, Pietro, Mangiacapra, Roberto, Melandri, Marco, Foligno, Nadia, Quartagno, Rita, Vezzoli, Giuseppe, Brioni, Elena, and Group, EMPA-KIDNEY Collaborative

Subjects
chronic renal disease, empagliflozin, empa-kidney, General Medicine
Abstract

Background The effects of empagliflozin in patients with chronic kidney disease who are at risk for disease progression are not well understood. The EMPA-KIDNEY trial was designed to assess the effects of treatment with empagliflozin in a broad range of such patients. Methods We enrolled patients with chronic kidney disease who had an estimated glomerular filtration rate (eGFR) of at least 20 but less than 45 ml per minute per 1.73 m2 of body-surface area, or who had an eGFR of at least 45 but less than 90 ml per minute per 1.73 m2 with a urinary albumin-to-creatinine ratio (with albumin measured in milligrams and creatinine measured in grams) of at least 200. Patients were randomly assigned to receive empagliflozin (10 mg once daily) or matching placebo. The primary outcome was a composite of progression of kidney disease (defined as end-stage kidney disease, a sustained decrease in eGFR to Results A total of 6609 patients underwent randomization. During a median of 2.0 years of follow-up, progression of kidney disease or death from cardiovascular causes occurred in 432 of 3304 patients (13.1%) in the empagliflozin group and in 558 of 3305 patients (16.9%) in the placebo group (hazard ratio, 0.72; 95% confidence interval [CI], 0.64 to 0.82; PConclusions Among a wide range of patients with chronic kidney disease who were at risk for disease progression, empagliflozin therapy led to a lower risk of progression of kidney disease or death from cardiovascular causes than placebo. (Funded by Boehringer Ingelheim and others; EMPA-KIDNEY ClinicalTrials.gov number, NCT03594110. opens in new tab; EudraCT number, 2017-002971-24. opens in new tab.)

Published
2023

6. Exploring regulatory network of metabolism through liver research

Author

Motoharu Awazawa

Subjects
Protein coding, business.industry, Endocrinology, Diabetes and Metabolism, microRNA, Internal Medicine, Medicine, Human genome, Review Article, Computational biology, business, Non-coding RNA, Gene
Abstract

In recent years, the techniques in molecular biology have been dramatically advanced, and consequently the landscape of metabolism research has undergone a remarkable change. One of the emerging pictures as the fruits of these advancements is one depicting the regulation of systemic metabolism through inter-organ networks involving multiple tissues, either via humoral factors, which are secreted from one tissue and conveyed to their remote target tissues, or through neuronal networks which are integrated by the central nervous system. In addition, the progress in high-throughput research tools enabled detailed characterization and deeper understanding of the nature of human genome, which has attracted much attention to the importance of various non-coding RNAs species. These non-coding RNAs are often co-expressed and co-regulated with adjacent protein coding genes, adding higher levels of complexities by them functioning together as a system and often influencing biologically important pathways in a cooperative manner. Here in this review several examples of these regulatory network systems are presented, illustrating the significance of them in systemic metabolism, with a possible future research direction also being proposed.

Published
2021

7. MEK/ERK Signaling in β-Cells Bifunctionally Regulates β-Cell Mass and Glucose-Stimulated Insulin Secretion Response to Maintain Glucose Homeostasis

Author

Hiroshi Kobayashi, Jean Charron, Hiroki Mizukami, Hirotsugu Suwanai, Sho Osonoi, Naoki Kobayashi, Masafumi Muratani, Yoshiko Matsumoto Ikushima, Kohjiro Ueki, Yuichi Morimoto, Jun Adachi, Seiichi Takemiya, Motoharu Awazawa, Noriko Takahashi, and Kotaro Soeda

Subjects
Blood Glucose, Male, medicine.medical_specialty, Endocrinology, Diabetes and Metabolism, medicine.medical_treatment, Type 2 diabetes, Diet, High-Fat, Exocytosis, Cell Line, Mice, Insulin-Secreting Cells, Internal medicine, Diabetes mellitus, Insulin Secretion, Internal Medicine, medicine, Animals, Homeostasis, Humans, Glucose homeostasis, Phosphorylation, Extracellular Signal-Regulated MAP Kinases, Mitogen-Activated Protein Kinase Kinases, geography, geography.geographical_feature_category, Chemistry, Insulin, medicine.disease, Islet, Pathophysiology, Mice, Inbred C57BL, Endocrinology, Signal Transduction
Abstract

In diabetic pathology, insufficiency in β-cell mass, unable to meet peripheral insulin demand, and functional defects of individual β-cells in production of insulin are often concurrently observed, collectively causing hyperglycemia. Here we show that the phosphorylation of ERK1/2 is significantly decreased in the islets of db/db mice as well as in those of a cohort of subjects with type 2 diabetes. In mice with abrogation of ERK signaling in pancreatic β-cells through deletion of Mek1 and Mek2, glucose intolerance aggravates under high-fat diet–feeding conditions due to insufficient insulin production with lower β-cell proliferation and reduced β-cell mass, while in individual β-cells dampening of the number of insulin exocytosis events is observed, with the molecules involved in insulin exocytosis being less phosphorylated. These data reveal bifunctional roles for MEK/ERK signaling in β-cells for glucose homeostasis, i.e., in regulating β-cell mass as well as in controlling insulin exocytosis in individual β-cells, thus providing not only a novel perspective for the understanding of diabetes pathophysiology but also a potential clue for new drug development for diabetes treatment.

Published
2021

8. An Antisense Transcript Transcribed From Irs2 Locus Contributes to the Pathogenesis of Hepatic Steatosis in Insulin Resistance

Author

Naoki Kobayashi, Kenta Kobayashi, Matthias Blüher, Yoshiko Matsumoto Ikushima, Miwa Nakano, Kohjiro Ueki, Motoharu Awazawa, Masafumi Muratani, Maya Matsushita, Kotaro Soeda, and Jens C. Brüning

Subjects
chemistry.chemical_classification, History, medicine.medical_specialty, Peroxisome proliferator-activated receptor gamma, Polymers and Plastics, Insulin, medicine.medical_treatment, Peroxisome proliferator-activated receptor, Biology, medicine.disease, Industrial and Manufacturing Engineering, IRS2, Endocrinology, Insulin resistance, chemistry, Downregulation and upregulation, Adipogenesis, Internal medicine, medicine, Business and International Management, Steatosis
Abstract

During insulin resistance, lipid uptake by the liver is promoted with peroxisome proliferator activated protein (PPAR) γ-upregulation, leading to hepatic steatosis. Insulin, however, does not directly regulate adipogenic gene expression in liver, and the mechanisms for their upregulation in obesity remains unclear. Here, we show that the Irs2locus, a critical regulator of insulin actions, encodes an antisense transcript ASIrs2, whose expression increased in obesity or after refeeding in liver, reciprocally to that of Irs2. ASIrs2 regulates hepatic Pparg-expression, and its suppression ameliorates steatosis in obese mice. The human orthologue AL162497.1 shows similar genomic organization like ASIrs2, whose expression being correlated with hepatic PPARG and severity of NASH. We also identified HARS2 as a potential binding protein for ASIrs2, functioning as a regulator of Pparg. Collectively, our data revealed a functional duality of Irs2 gene locus, where reciprocal changes of Irs2 and ASIrs2 in obesity cause insulin resistance and steatosis.

Published
2021

9. An antisense transcript transcribed from Irs2 locus contributes to the pathogenesis of hepatic steatosis in insulin resistance

Author

Maya Matsushita, Motoharu Awazawa, Naoki Kobayashi, Yoshiko Matsumoto Ikushima, Kotaro Soeda, Miwa Tamura-Nakano, Masafumi Muratani, Kenta Kobayashi, Matthias Blüher, Jens C. Brüning, and Kohjiro Ueki

Subjects
Pharmacology, Clinical Biochemistry, Biochemistry, Mice, Inbred C57BL, PPAR gamma, Mice, Liver, Non-alcoholic Fatty Liver Disease, Drug Discovery, Insulin Receptor Substrate Proteins, Animals, Insulin, Pparg, Fatty Liver, Insulin Resistance, Natural Antisense Transcript, Non-coding Rna, Molecular Medicine, Obesity, Molecular Biology
Abstract

During insulin resistance, lipid uptake by the liver is promoted by peroxisome proliferator-activated protein (PPAR) γ upregulation, leading to hepatic steatosis. Insulin, however, does not directly regulate adipogenic gene expression in liver, and the mechanisms for its upregulation in obesity remain unclear. Here, we show that the Irs2 locus, a critical regulator of insulin actions, encodes an antisense transcript, ASIrs2, whose expression increases in obesity or after refeeding in liver, reciprocal to that of Irs2. ASIrs2 regulates hepatic Pparg expression, and its suppression ameliorates steatosis in obese mice. The human ortholog AL162497.1, whose expression is correlated with that of hepatic PPARG and the severity of non-alcoholic steatohepatitis (NASH), shows genomic organization similar to that of ASIrs2. We also identified HARS2 as a potential binding protein for ASIrs2, functioning as a regulator of Pparg. Collectively, our data reveal a functional duality of the Irs2 gene locus, where reciprocal changes of Irs2 and ASIrs2 in obesity cause insulin resistance and steatosis.

Published
2022

10. A MAFG-lncRNA axis links systemic nutrient abundance to hepatic glucose metabolism

Author

Hande Topel, Hildegard Büning, Peter A. Edwards, Peter Frommolt, Jan-Wilhelm Kornfeld, Bjørk Ditlev Larsen, Igor Ulitsky, Dario F. De Jesus, Ines Dhaouadi, Elena Schmidt, Robin Schwarzer, Rohit N. Kulkarni, Richard G. Lee, Ling Yang, Haiming Cao, Nils R. Hansmeier, Christoph A. Kiefer, Thomas Q. de Aguiar Vallim, Sajjad Khani, Branko Zevnik, Rute Loureiro, Christoph Dieterich, Jenny C. Link, Ludger Scheja, Matteo Oliverio, Motoharu Awazawa, Marta Pradas-Juni, Eduardo Fernandez-Rebollo, Masayuki Yamamoto, Simon E. Tröder, Nicola Meola, Paul Klemm, Joerg Heeren, Uwe Knippschild, and Markus Heine

Subjects
MafG Transcription Factor, Male, CRISPR-Cas9 genome editing, 0301 basic medicine, Science, General Physics and Astronomy, Biology, Carbohydrate metabolism, Article, General Biochemistry, Genetics and Molecular Biology, Mice, 03 medical and health sciences, 0302 clinical medicine, Insulin resistance, Diabetes mellitus, Gene expression, medicine, Animals, Humans, Gene silencing, Obesity, RNA, Messenger, lcsh:Science, Transcriptomics, PI3K/AKT/mTOR pathway, Aged, 2. Zero hunger, Multidisciplinary, TOR Serine-Threonine Kinases, General Chemistry, Metabolism, Middle Aged, medicine.disease, Cell biology, Repressor Proteins, Glucose, 030104 developmental biology, Diabetes Mellitus, Type 2, Liver, Cistrome, 030220 oncology & carcinogenesis, Long non-coding RNAs, lcsh:Q, RNA, Long Noncoding
Abstract

Obesity and type 2 diabetes mellitus are global emergencies and long noncoding RNAs (lncRNAs) are regulatory transcripts with elusive functions in metabolism. Here we show that a high fraction of lncRNAs, but not protein-coding mRNAs, are repressed during diet-induced obesity (DIO) and refeeding, whilst nutrient deprivation induced lncRNAs in mouse liver. Similarly, lncRNAs are lost in diabetic humans. LncRNA promoter analyses, global cistrome and gain-of-function analyses confirm that increased MAFG signaling during DIO curbs lncRNA expression. Silencing Mafg in mouse hepatocytes and obese mice elicits a fasting-like gene expression profile, improves glucose metabolism, de-represses lncRNAs and impairs mammalian target of rapamycin (mTOR) activation. We find that obesity-repressed LincIRS2 is controlled by MAFG and observe that genetic and RNAi-mediated LincIRS2 loss causes elevated blood glucose, insulin resistance and aberrant glucose output in lean mice. Taken together, we identify a MAFG-lncRNA axis controlling hepatic glucose metabolism in health and metabolic disease., Despite widespread transcription of LncRNA in mammalian systems, their contribution to metabolic homeostasis at the cellular and tissue level remains elusive. Here Pradas-Juni et al. describe a transcription factor–LncRNA pathway that couples hepatocyte nutrient sensing to regulation of glucose metabolism in mice.

Published
2020

11. A microRNA screen reveals that elevated hepatic ectodysplasin A expression contributes to obesity-induced insulin resistance in skeletal muscle

Author

Jens C. Brüning, Paula Gabel, Claus Brandt, Susanne Motameny, Joel Schmitz, Motoharu Awazawa, Hendrik Nolte, Janine Altmüller, Jan-Wilhelm Kornfeld, Marcus Krüger, Eva Tsaousidou, P. Justus Ackermann, F. Thomas Wunderlich, and Matthias Blüher

Subjects
Male, 0301 basic medicine, medicine.medical_specialty, Transgene, Mice, Obese, Mice, Transgenic, Biology, General Biochemistry, Genetics and Molecular Biology, Mice, 03 medical and health sciences, 0302 clinical medicine, Insulin resistance, Internal medicine, microRNA, medicine, Animals, Obesity, Muscle, Skeletal, Cells, Cultured, Ectodermal Dysplasia 1, Anhidrotic, Gene Expression Profiling, Skeletal muscle, General Medicine, Ectodysplasins, medicine.disease, IRS1, Mice, Inbred C57BL, Gene expression profiling, MicroRNAs, 030104 developmental biology, medicine.anatomical_structure, Endocrinology, Liver, 030220 oncology & carcinogenesis, Mice, Inbred CBA, Ectodysplasin A, Insulin Resistance
Abstract

Over 40% of microRNAs (miRNAs) are located in introns of protein-coding genes, and many of these intronic miRNAs are co-regulated with their host genes. In such cases of co-regulation, the products of host genes and their intronic miRNAs can cooperate to coordinately regulate biologically important pathways. Therefore, we screened intronic miRNAs dysregulated in the livers of mouse models of obesity to identify previously uncharacterized protein-coding host genes that may contribute to the pathogenesis of obesity-associated insulin resistance and type 2 diabetes mellitus. Our approach revealed that expression of both the gene encoding ectodysplasin A (Eda), the causal gene in X-linked hypohidrotic ectodermal dysplasia (XLHED), and its intronic miRNA, miR-676, was increased in the livers of obese mice. Moreover, hepatic EDA expression is increased in obese human subjects and reduced upon weight loss, and its hepatic expression correlates with systemic insulin resistance. We also found that reducing miR-676 expression in db/db mice increases the expression of proteins involved in fatty acid oxidation and reduces the expression of inflammatory signaling components in the liver. Further, we found that Eda expression in mouse liver is controlled via PPARγ and RXR-α, increases in circulation under conditions of obesity, and promotes JNK activation and inhibitory serine phosphorylation of IRS1 in skeletal muscle. In accordance with these findings, gain- and loss-of-function approaches reveal that liver-derived EDA regulates systemic glucose metabolism, suggesting that EDA is a hepatokine that can contribute to impaired skeletal muscle insulin sensitivity in obesity.

Published
2017

12. Acquired partial lipoatrophy as graft-versus-host disease and treatment with metreleptin: two case reports

Author

Satoshi Miyamoto, Yusuke Shibata, Motoharu Awazawa, Jun Eguchi, Atsuko Nakatsuka, Akinobu Takaki, Yukari Masuda, Takahito Yagi, Jun Wada, and Ryuichi Yoshida

Subjects
Leptin, Adult, medicine.medical_specialty, Diabetic ketoacidosis, Lipodystrophy, medicine.medical_treatment, lcsh:Medicine, Graft vs Host Disease, 030209 endocrinology & metabolism, Case Report, Liver transplantation, Gastroenterology, 03 medical and health sciences, Metreleptin, chemistry.chemical_compound, 0302 clinical medicine, Insulin resistance, Internal medicine, medicine, Humans, Lipoatrophy, Transplantation, business.industry, lcsh:R, Fatty liver, Diabetes, General Medicine, medicine.disease, Treatment Outcome, chemistry, 030220 oncology & carcinogenesis, Female, Steatohepatitis, business
Abstract

Introduction Acquired partial lipoatrophy has been reported after bone marrow transplantation during childhood; however, no adult cases have previously been reported. We herein report two adult cases of acquired partial lipoatrophy after transplantation. Case presentation A 28-year-old Japanese woman developed diabetic ketoacidosis and received insulin therapy after bone marrow transplantation. She manifested partial lipoatrophy of the extremities, prominent insulin resistance, hyperglycemia, hypertriglyceridemia, and fatty liver. A 40-year-old Japanese woman underwent liver transplantation from a living donor for alcoholic liver disease after abstinence from alcohol. She newly developed non-alcoholic steatohepatitis and diabetes. Non-alcoholic steatohepatitis progressed to liver failure, and a second liver transplantation from a brain-dead donor was performed at 42 years of age. She demonstrated loss of subdermal fat of the upper and lower extremities, prominent insulin resistance, hyperglycemia, and hypertriglyceridemia. In both cases, the injection of recombinant methionyl human leptin reversed all of the metabolic abnormalities. Conclusions Acquired partial lipoatrophy after transplantation is a manifestation of chronic graft-versus-host disease in adults. This entity is associated with diabetes with prominent insulin resistance and severe hypertriglycemia and can be successfully treated with metreleptin for the long term.

Published
2018

13. Obesogenic memory can confer long-term increases in adipose tissue but not liver inflammation and insulin resistance after weight loss

Author

Hella S. Brönneke, Jan Mauer, Joel Schmitz, Arne Dietrich, Jens C. Brüning, Motoharu Awazawa, Hayley T. Nicholls, Nadine Evers, and Matthias Blüher

Subjects
0301 basic medicine, medicine.medical_specialty, Weight loss, lcsh:Internal medicine, Adipose tissue, 030209 endocrinology & metabolism, Inflammation, Biology, Weight regain, 03 medical and health sciences, 0302 clinical medicine, Insulin resistance, Internal medicine, medicine, Obesity, Risk factor, lcsh:RC31-1245, Molecular Biology, Cancer, Type 2 Diabetes Mellitus, Cell Biology, medicine.disease, Metabolic inflammation, 030104 developmental biology, Endocrinology, Original Article, medicine.symptom
Abstract

Objective Obesity represents a major risk factor for the development of type 2 diabetes mellitus, atherosclerosis and certain cancer entities. Treatment of obesity is hindered by the long-term maintenance of initially reduced body weight, and it remains unclear whether all pathologies associated with obesity are fully reversible even upon successfully maintained weight loss. Methods We compared high fat diet-fed, weight reduced and lean mice in terms of body weight development, adipose tissue and liver insulin sensitivity as well as inflammatory gene expression. Moreover, we assessed similar parameters in a human cohort before and after bariatric surgery. Results Compared to lean animals, mice that demonstrated successful weight reduction showed increased weight gain following exposure to ad libitum control diet. However, pair-feeding weight-reduced mice with lean controls efficiently stabilized body weight, indicating that hyperphagia was the predominant cause for the observed weight regain. Additionally, whereas glucose tolerance improved rapidly after weight loss, systemic insulin resistance was retained and ameliorated only upon prolonged pair-feeding. Weight loss enhanced insulin action and resolved pro-inflammatory gene expression exclusively in the liver, whereas visceral adipose tissue displayed no significant improvement of metabolic and inflammatory parameters compared to obese mice. Similarly, bariatric surgery in humans (n = 55) resulted in massive weight reduction, improved hepatic inflammation and systemic glucose homeostasis, while adipose tissue inflammation remained unaffected and adipocyte-autonomous insulin action only exhibit minor improvements in a subgroup of patients (42%). Conclusions These results demonstrate that although sustained weight loss improves systemic glucose homeostasis, primarily through improved inflammation and insulin action in liver, a remarkable obesogenic memory can confer long-term increases in adipose tissue inflammation and insulin resistance in mice as well as in a significant subpopulation of obese patients., Highlights • Upon weight loss in mice liver insulin sensitivity rapidly improves. • Upon weight loss in mice fat retains metabolic inflammation and insulin resistance. • Weight gain upon successful weight reduction in mice is driven by increased food intake. • A proportion of human subjects undergoing bariatric surgery retain AT-inflammation.

Published
2016

14. LincRNA H19 protects from dietary obesity by constraining expression of monoallelic genes in brown fat

Author

Nils R. Hansmeier, Marta Pradas-Juni, Matteo Oliverio, Isabella Gaziano, Eduardo Fernandez-Rebollo, Gerfried Mitterer, Jan-Wilhelm Kornfeld, Markus Heine, Martin Bilban, Christoph A. Kiefer, Sajjad Khani, Jörg Heeren, Peter Zentis, Ines Dhaouadi, Philipp Hammerschmidt, Matthias Blüher, Rute Loureiro, Wolfgang Wagner, Ulf Andersson Ørom, Peter Frommolt, Matteo Bergami, Evgenia Ntini, Paul Klemm, Motoharu Awazawa, and Elena Schmidt

Subjects
Adult, Male, 0301 basic medicine, Adipose Tissue, White, Science, General Physics and Astronomy, Adipose tissue, Mice, Transgenic, Biology, Diet, High-Fat, Article, General Biochemistry, Genetics and Molecular Biology, Genomic Imprinting, 03 medical and health sciences, Adipose Tissue, Brown, Brown adipose tissue, medicine, Animals, Humans, Gene silencing, Obesity, lcsh:Science, Aged, Aged, 80 and over, Regulation of gene expression, Multidisciplinary, General Chemistry, Middle Aged, female genital diseases and pregnancy complications, Cell biology, Mice, Inbred C57BL, 030104 developmental biology, medicine.anatomical_structure, Gene Expression Regulation, Mitochondrial biogenesis, Adipogenesis, embryonic structures, Female, RNA, Long Noncoding, lcsh:Q, Energy Metabolism, Genomic imprinting, Thermogenesis
Abstract

Increasing brown adipose tissue (BAT) thermogenesis in mice and humans improves metabolic health and understanding BAT function is of interest for novel approaches to counteract obesity. The role of long noncoding RNAs (lncRNAs) in these processes remains elusive. We observed maternally expressed, imprinted lncRNA H19 increased upon cold-activation and decreased in obesity in BAT. Inverse correlations of H19 with BMI were also observed in humans. H19 overexpression promoted, while silencing of H19 impaired adipogenesis, oxidative metabolism and mitochondrial respiration in brown but not white adipocytes. In vivo, H19 overexpression protected against DIO, improved insulin sensitivity and mitochondrial biogenesis, whereas fat H19 loss sensitized towards HFD weight gains. Strikingly, paternally expressed genes (PEG) were largely absent from BAT and we demonstrated that H19 recruits PEG-inactivating H19-MBD1 complexes and acts as BAT-selective PEG gatekeeper. This has implications for our understanding how monoallelic gene expression affects metabolism in rodents and, potentially, humans., Brown adipose tissue (BAT) thermogenesis counteracts obesity and promotes metabolic health. The role of long non-coding RNAs (lncRNAs) in the regulation of this process is not well understood. Here the authors identify a maternally expressed lncRNA, H19, that increases BAT oxidative metabolism and energy expenditure.

Published
2018

15. The RNA Methyltransferase Complex of WTAP, METTL3, and METTL14 Regulates Mitotic Clonal Expansion in Adipogenesis

Author

Tatsuhiko Kodama, Toshihiro Umehara, Kazuyuki Tobe, Aya Iwane, Takashi Kadowaki, Takao Hamakubo, Takayoshi Sasako, Yukiko Okazaki, Naoki Kobayashi, Hironori Waki, Mitsuru Ohsugi, Naoto Kubota, Masatoshi Kobayashi, Motoharu Awazawa, Seiichiro Aoe, Ryo Suzuki, Kohjiro Ueki, and Keiko Horiuchi

Subjects
0301 basic medicine, obesity, Cell cycle checkpoint, Mitosis, Cell Count, Cell Cycle Proteins, Biology, adipocyte, 03 medical and health sciences, Mice, 0302 clinical medicine, Downregulation and upregulation, 3T3-L1 Cells, Adipocytes, Animals, Humans, RNA, Messenger, RNA Processing, Post-Transcriptional, Molecular Biology, Cell Size, Cell Nucleus, Mice, Knockout, Gene knockdown, Adipogenesis, diabetes, Methyltransferase complex, RNA, Nuclear Proteins, Cell Differentiation, Cell Biology, Cell Cycle Checkpoints, Methyltransferases, Cell cycle, Cell biology, Clone Cells, DNA-Binding Proteins, 030104 developmental biology, 030220 oncology & carcinogenesis, Gene Knockdown Techniques, RNA Splicing Factors, Insulin Resistance, Carrier Proteins, Energy Metabolism, Cyclin A2, Research Article
Abstract

Adipocyte differentiation is regulated by various mechanisms, of which mitotic clonal expansion (MCE) is a key step. Although this process is known to be regulated by cell cycle modulators, the precise mechanism remains unclear., Adipocyte differentiation is regulated by various mechanisms, of which mitotic clonal expansion (MCE) is a key step. Although this process is known to be regulated by cell cycle modulators, the precise mechanism remains unclear. N6-Methyladenosine (m6A) posttranscriptional RNA modification, whose methylation and demethylation are performed by respective enzyme molecules, has recently been suggested to be involved in the regulation of adipogenesis. Here, we show that an RNA N6-adenosine methyltransferase complex consisting of Wilms' tumor 1-associating protein (WTAP), methyltransferase like 3 (METTL3), and METTL14 positively controls adipogenesis by promoting cell cycle transition in MCE during adipogenesis. WTAP, coupled with METTL3 and METTL14, is increased and distributed in nucleus by the induction of adipogenesis dependently on RNA in vitro. Knockdown of each of these three proteins leads to cell cycle arrest and impaired adipogenesis associated with suppression of cyclin A2 upregulation during MCE, whose knockdown also impairs adipogenesis. Consistent with this, Wtap heterozygous knockout mice are protected from diet-induced obesity with smaller size and number of adipocytes, leading to improved insulin sensitivity. These data provide a mechanism for adipogenesis through the WTAP-METTL3-METTL14 complex and a potential strategy for treatment of obesity and associated disorders.

Published
2018

16. CerS1-Derived C

Author

Sarah M, Turpin-Nolan, Philipp, Hammerschmidt, Weiyi, Chen, Alexander, Jais, Katharina, Timper, Motoharu, Awazawa, Susanne, Brodesser, and Jens C, Brüning

Subjects
Male, Mice, Sphingosine N-Acyltransferase, Animals, Humans, Membrane Proteins, Obesity, Insulin Resistance, Ceramides, Diet, High-Fat, Muscle, Skeletal
Abstract

Skeletal muscle accumulates ceramides in obesity, which contribute to the development of obesity-associated insulin resistance. However, it remained unclear which distinct ceramide species in this organ contributes to instatement of systemic insulin resistance. Here, ceramide profiling of high-fat diet (HFD)-fed animals revealed increased skeletal muscle C

Published
2017

17. Deregulation of Pancreas-Specific Oxidoreductin ERO1β in the Pathogenesis of Diabetes Mellitus

Author

Takashi Futami, Yasuo Uchiyama, Keizo Nakaya, Ryo Suzuki, Ai Terai, Kazuma Kaneko, Michinori Sakada, Takashi Kadowaki, Motoharu Awazawa, Mitsuru Ohsugi, Kohjiro Ueki, and Masato Koike

Subjects
Protein Folding, medicine.medical_specialty, medicine.medical_treatment, Mice, Transgenic, Biology, Diabetes Mellitus, Experimental, Pathogenesis, Mice, ER oxidoreductin, Downregulation and upregulation, Insulin-Secreting Cells, Internal medicine, Diabetes mellitus, medicine, Animals, Humans, Insulin, Glucose homeostasis, Oxidoreductases Acting on Sulfur Group Donors, RNA, Messenger, Molecular Biology, Glycoproteins, Membrane Glycoproteins, Endoplasmic reticulum, Articles, Cell Biology, Endoplasmic Reticulum Stress, medicine.disease, Recombinant Proteins, Rats, Mice, Inbred C57BL, Endocrinology, Gene Expression Regulation, Unfolded Protein Response, biology.protein, Unfolded protein response, Oxidoreductases
Abstract

A growing body of evidence has underlined the significance of endoplasmic reticulum (ER) stress in the pathogenesis of diabetes mellitus. ER oxidoreductin 1β (ERO1β) is a pancreas-specific disulfide oxidase that is known to be upregulated in response to ER stress and to promote protein folding in pancreatic β cells. It has recently been demonstrated that ERO1β promotes insulin biogenesis in β cells and thus contributes to physiological glucose homeostasis, though it is unknown if ERO1β is involved in the pathogenesis of diabetes mellitus. Here we show that in diabetic model mice, ERO1β expression is paradoxically decreased in β cells despite the indications of increased ER stress. However, overexpression of ERO1β in β cells led to the upregulation of unfolded protein response genes and markedly enlarged ER lumens, indicating that ERO1β overexpression caused ER stress in the β cells. Insulin contents were decreased in the β cells that overexpressed ERO1β, leading to impaired insulin secretion in response to glucose stimulation. These data indicate the importance of the fine-tuning of the ER redox state, the disturbance of which would compromise the function of β cells in insulin synthesis and thus contribute to the pathogenesis of diabetes mellitus.

Published
2014

18. CerS6-Derived Sphingolipids Interact with Mff and Promote Mitochondrial Fragmentation in Obesity

Author

Markus Krüger, Sarah M. Turpin-Nolan, Britta Brügger, Philipp Hammerschmidt, Hans-Georg Sprenger, Motoharu Awazawa, Hanna L. Brunner, Hayley T. Nicholls, Alexander Jais, Jens C. Brüning, Mathias J. Gerl, Thomas Langer, Hendrik Nolte, and Daniela Ostkotte

Subjects
Male, Ceramide, Mitochondrial fission factor, Apoptosis, Biology, General Biochemistry, Genetics and Molecular Biology, Cell Line, Mitochondrial Proteins, Mice, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Insulin resistance, Sphingosine N-Acyltransferase, medicine, Animals, Humans, Obesity, 030304 developmental biology, Mice, Knockout, chemistry.chemical_classification, Sphingolipids, 0303 health sciences, Membrane Proteins, medicine.disease, Sphingolipid, Mitochondria, Cell biology, Mice, Inbred C57BL, Enzyme, Liver, chemistry, Cell culture, lipids (amino acids, peptides, and proteins), Insulin Resistance, 030217 neurology & neurosurgery, HeLa Cells
Abstract

Summary Ectopic lipid deposition and altered mitochondrial dynamics contribute to the development of obesity and insulin resistance. However, the mechanistic link between these processes remained unclear. Here we demonstrate that the C16:0 sphingolipid synthesizing ceramide synthases, CerS5 and CerS6, affect distinct sphingolipid pools and that abrogation of CerS6 but not of CerS5 protects from obesity and insulin resistance. We identify proteins that specifically interact with C16:0 sphingolipids derived from CerS5 or CerS6. Here, only CerS6-derived C16:0 sphingolipids bind the mitochondrial fission factor (Mff). CerS6 and Mff deficiency protect from fatty acid-induced mitochondrial fragmentation in vitro, and the two proteins genetically interact in vivo in obesity-induced mitochondrial fragmentation and development of insulin resistance. Our experiments reveal an unprecedented specificity of sphingolipid signaling depending on specific synthesizing enzymes, provide a mechanistic link between hepatic lipid deposition and mitochondrial fragmentation in obesity, and define the CerS6-derived sphingolipid/Mff interaction as a therapeutic target for metabolic diseases.

Published
2019

19. CerS1-Derived C18:0 Ceramide in Skeletal Muscle Promotes Obesity-Induced Insulin Resistance

Author

Susanne Brodesser, Weiyi Chen, Jens C. Brüning, Alexander Jais, Philipp Hammerschmidt, Motoharu Awazawa, Katharina Timper, and Sarah M. Turpin-Nolan

Subjects
0301 basic medicine, medicine.medical_specialty, Ceramide, FGF21, Skeletal muscle, Ceramide synthase 1, medicine.disease, Sphingolipid, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, chemistry.chemical_compound, 030104 developmental biology, 0302 clinical medicine, medicine.anatomical_structure, Insulin resistance, Endocrinology, chemistry, Internal medicine, medicine, Glucose homeostasis, Ceramide synthase, 030217 neurology & neurosurgery
Abstract

Summary Skeletal muscle accumulates ceramides in obesity, which contribute to the development of obesity-associated insulin resistance. However, it remained unclear which distinct ceramide species in this organ contributes to instatement of systemic insulin resistance. Here, ceramide profiling of high-fat diet (HFD)-fed animals revealed increased skeletal muscle C18:0 ceramide content, concomitant with increased expression of ceramide synthase (CerS)1. Mice lacking CerS1, either globally or specifically in skeletal muscle (CerS1ΔSkM), exhibit reduced muscle C18:0 ceramide content and significant improvements in systemic glucose homeostasis. CerS1ΔSkM mice exhibit improved insulin-stimulated suppression of hepatic glucose production, and lack of CerS1 in skeletal muscle improves systemic glucose homeostasis via increased release of Fgf21 from skeletal muscle. In contrast, muscle-specific deficiency of C16:0 ceramide-producing CerS5 and CerS6 failed to protect mice from obesity-induced insulin resistance. Collectively, these results reveal the tissue-specific function of distinct ceramide species during the development of obesity-associated insulin resistance.

Published
2019

20. Rimonabant Ameliorates Insulin Resistance via both Adiponectin-dependent and Adiponectin-independent Pathways

Author

Kazuyuki Tobe, Mitsuru Ohsugi, Tetsuo Noda, Yasuo Terauchi, Iseki Takamoto, Ryozo Nagai, Masato Iwabu, Masao Moroi, Kohjiro Ueki, Tetsuya Kubota, Hisayuki Katsuyama, Chiaki Hasegawa, Takashi Kadowaki, Toshimasa Yamauchi, Kaoru Sugi, Naoto Kubota, Motoharu Awazawa, Taku Watanabe, and Kumpei Tokuyama

Subjects
medicine.medical_specialty, Glucose uptake, Mice, Obese, AMP-Activated Protein Kinases, Biochemistry, Eating, Mice, Insulin resistance, Piperidines, Rimonabant, Internal medicine, medicine, Animals, Muscle, Skeletal, Molecular Biology, Mice, Knockout, Adiponectin, Chemistry, Body Weight, Skeletal muscle, AMPK, Cell Biology, medicine.disease, Glucose, medicine.anatomical_structure, Endocrinology, Liver, Pyrazoles, Liver function, Insulin Resistance, Hormone, medicine.drug
Abstract

Rimonabant has been shown to not only decrease the food intake and body weight but also to increase serum adiponectin levels. This increase of the serum adiponectin levels has been hypothesized to be related to the rimonabant-induced amelioration of insulin resistance linked to obesity, although experimental evidence to support this hypothesis is lacking. To test this hypothesis experimentally, we generated adiponectin knock-out (adipo(-/-))ob/ob mice. After 21 days of 30 mg/kg rimonabant, the body weight and food intake decreased to similar degrees in the ob/ob and adipo(-/-)ob/ob mice. Significant improvement of insulin resistance was observed in the ob/ob mice following rimonabant treatment, associated with significant up-regulation of the plasma adiponectin levels, in particular, of high molecular weight adiponectin. Amelioration of insulin resistance in the ob/ob mice was attributed to the decrease of glucose production and activation of AMP-activated protein kinase (AMPK) in the liver induced by rimonabant but not to increased glucose uptake by the skeletal muscle. Interestingly, the rimonabant-treated adipo(-/-)ob/ob mice also exhibited significant amelioration of insulin resistance, although the degree of improvement was significantly lower as compared with that in the ob/ob mice. The effects of rimonabant on the liver metabolism, namely decrease of glucose production and activation of AMPK, were also less pronounced in the adipo(-/-)ob/ob mice. Thus, it was concluded that rimonabant ameliorates insulin resistance via both adiponectin-dependent and adiponectin-independent pathways.

Published
2009

21. Neonatal insulin action impairs hypothalamic neurocircuit formation in response to maternal high fat feeding

Author

Hayley T. Nicholls, Sophie M. Steculorum, Brigitte Hampel, Jens C. Brüning, Jan Mauer, Lars Paeger, Motoharu Awazawa, A. Christine Hausen, Susanne Neupert, Reinhard Predel, Merly C. Vogt, Tamas L. Horvath, Simon Hess, and Peter Kloppenburg

Subjects
Male, medicine.medical_specialty, endocrine system, Pro-Opiomelanocortin, Offspring, medicine.medical_treatment, Hypothalamus, Diet, High-Fat, General Biochemistry, Genetics and Molecular Biology, Article, Mice, Metabolic Diseases, Proopiomelanocortin, Pregnancy, Internal medicine, Orexigenic, medicine, Glucose homeostasis, Animals, Insulin, Lactation, Obesity, Neurons, biology, Biochemistry, Genetics and Molecular Biology(all), digestive, oral, and skin physiology, Axons, Receptor, Insulin, Mice, Inbred C57BL, Insulin receptor, Endocrinology, nervous system, Hyperglycemia, biology.protein, Female, Melanocortin, hormones, hormone substitutes, and hormone antagonists, Signal Transduction, medicine.drug
Abstract

SummaryMaternal metabolic homeostasis exerts long-term effects on the offspring’s health outcomes. Here, we demonstrate that maternal high-fat diet (HFD) feeding during lactation predisposes the offspring for obesity and impaired glucose homeostasis in mice, which is associated with an impairment of the hypothalamic melanocortin circuitry. Whereas the number and neuropeptide expression of anorexigenic proopiomelanocortin (POMC) and orexigenic agouti-related peptide (AgRP) neurons, electrophysiological properties of POMC neurons, and posttranslational processing of POMC remain unaffected in response to maternal HFD feeding during lactation, the formation of POMC and AgRP projections to hypothalamic target sites is severely impaired. Abrogating insulin action in POMC neurons of the offspring prevents altered POMC projections to the preautonomic paraventricular nucleus of the hypothalamus (PVH), pancreatic parasympathetic innervation, and impaired glucose-stimulated insulin secretion in response to maternal overnutrition. These experiments reveal a critical timing, when altered maternal metabolism disrupts metabolic homeostasis in the offspring via impairing neuronal projections, and show that abnormal insulin signaling contributes to this effect.

Published
2014

22. The RNA Methyltransferase Complex of WTAP, METTL3, and METTL14 Regulates Mitotic Clonal Expansion in Adipogenesis.

Author

Masatoshi Kobayashi, Mitsuru Ohsugi, Takayoshi Sasako, Motoharu Awazawa, Toshihiro Umehara, Aya Iwane, Naoki Kobayashi, Yukiko Okazaki, Naoto Kubota, Ryo Suzuki, Hironori Waki, Keiko Horiuchi, Takao Hamakubo, Tatsuhiko Kodama, Seiichiro Aoe, Kazuyuki Tobe, Takashi Kadowaki, and Kohjiro Ueki

Subjects
METHYLTRANSFERASE genetics, METHYLTRANSFERASE regulation, CELL cycle, ADIPOGENESIS, CELL differentiation
Abstract

Adipocyte differentiation is regulated by various mechanisms, of which mitotic clonal expansion (MCE) is a key step. Although this process is known to be regulated by cell cycle modulators, the precise mechanism remains unclear. N6- Methyladenosine (m6A) posttranscriptional RNA modification, whose methylation and demethylation are performed by respective enzyme molecules, has recently been suggested to be involved in the regulation of adipogenesis. Here, we show that an RNA N6- adenosine methyltransferase complex consisting of Wilms' tumor 1-associating protein (WTAP), methyltransferase like 3 (METTL3), and METTL14 positively controls adipogenesis by promoting cell cycle transition in MCE during adipogenesis. WTAP, coupled with METTL3 and METTL14, is increased and distributed in nucleus by the induction of adipogenesis dependently on RNA in vitro. Knockdown of each of these three proteins leads to cell cycle arrest and impaired adipogenesis associated with suppression of cyclin A2 upregulation during MCE, whose knockdown also impairs adipogenesis. Consistent with this, Wtap heterozygous knockout mice are protected from diet-induced obesity with smaller size and number of adipocytes, leading to improved insulin sensitivity. These data provide a mechanism for adipogenesis through the WTAP-METTL3-METTL14 complex and a potential strategy for treatment of obesity and associated disorders. [ABSTRACT FROM AUTHOR]

Published
2018
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23. Blockade of class IB phosphoinositide-3 kinase ameliorates obesity-induced inflammation and insulin resistance

Author

Masatoshi Kobayashi, Naoki Kobayashi, Motoharu Awazawa, Hara Kazuo, Kazuma Kaneko, Mitsuru Ohsugi, Miho Suzuki, Ryozo Nagai, Mineo Kurokawa, Yoshitaka Nishikawa, Kotaro Yoshimura, Takayoshi Sasako, Takehiko Sasaki, Naoto Kubota, Junko Sasaki, Takashi Kadowaki, Yukiko Okazaki, Kohjiro Ueki, Koji Murakami, Susumu Goyama, Aya Iwane, and Isao Koshima

Subjects
medicine.medical_specialty, Adipose tissue, Inflammation, Systemic inflammation, Proinflammatory cytokine, Mice, Insulin resistance, Internal medicine, Quinoxalines, medicine, Animals, Class Ib Phosphatidylinositol 3-Kinase, Obesity, Phosphoinositide-3 Kinase Inhibitors, Mice, Knockout, Multidisciplinary, Phosphoinositide 3-kinase, biology, Gene Expression Profiling, Macrophages, Histological Techniques, Biological Sciences, medicine.disease, Flow Cytometry, Insulin receptor, Endocrinology, Adipose Tissue, Liver, biology.protein, Thiazolidinediones, Metabolic syndrome, medicine.symptom, Insulin Resistance
Abstract

Obesity and insulin resistance, the key features of metabolic syndrome, are closely associated with a state of chronic, low-grade inflammation characterized by abnormal macrophage infiltration into adipose tissues. Although it has been reported that chemokines promote leukocyte migration by activating class IB phosphoinositide-3 kinase (PI3Kγ) in inflammatory states, little is known about the role of PI3Kγ in obesity-induced macrophage infiltration into tissues, systemic inflammation, and the development of insulin resistance. In the present study, we used murine models of both diet-induced and genetically induced obesity to examine the role of PI3Kγ in the accumulation of tissue macrophages and the development of obesity-induced insulin resistance. Mice lacking p110γ ( Pik3cg −/− ), the catalytic subunit of PI3Kγ, exhibited improved systemic insulin sensitivity with enhanced insulin signaling in the tissues of obese animals. In adipose tissues and livers of obese Pik3cg −/− mice, the numbers of infiltrated proinflammatory macrophages were markedly reduced, leading to suppression of inflammatory reactions in these tissues. Furthermore, bone marrow-specific deletion and pharmacological blockade of PI3Kγ also ameliorated obesity-induced macrophage infiltration and insulin resistance. These data suggest that PI3Kγ plays a crucial role in the development of both obesity-induced inflammation and systemic insulin resistance and that PI3Kγ can be a therapeutic target for type 2 diabetes.

Published
2011

24. Class IA Phosphatidylinositol 3-Kinase in Pancreatic β Cells Controls Insulin Secretion by Multiple Mechanisms

Author

C. Ronald Kahn, Kazuma Kaneko, Lewis C. Cantley, Rohit N. Kulkarni, Shinji Hashimoto, Masafumi Kakei, Motoharu Awazawa, Mitsuru Ohsugi, Yukiko Okazaki, Kohjiro Ueki, Masashi Yoshida, Ji Luo, Toshihiro Umehara, Tadahiro Kitamura, Haruo Kasai, Takashi Kadowaki, Noriko Takahashi, Kazunori Inabe, and Masayuki Okamoto

Subjects
medicine.medical_specialty, Physiology, medicine.medical_treatment, Article, Exocytosis, chemistry.chemical_compound, Mice, Insulin resistance, Internal medicine, Insulin receptor substrate, Insulin-Secreting Cells, Insulin Secretion, medicine, Animals, Insulin, Phosphatidylinositol, Molecular Biology, Protein kinase B, PI3K/AKT/mTOR pathway, Mice, Knockout, Analysis of Variance, biology, Reverse Transcriptase Polymerase Chain Reaction, Class Ia Phosphatidylinositol 3-Kinase, Cell Biology, medicine.disease, Insulin receptor, Endocrinology, chemistry, Diabetes Mellitus, Type 2, biology.protein, SNARE Proteins
Abstract

Summary Type 2 diabetes is characterized by insulin resistance and pancreatic β cell dysfunction, the latter possibly caused by a defect in insulin signaling in β cells. Inhibition of class IA phosphatidylinositol 3-kinase (PI3K), using a mouse model lacking the pik3r1 gene specifically in β cells and the pik3r2 gene systemically (βDKO mouse), results in glucose intolerance and reduced insulin secretion in response to glucose. β cells of βDKO mice had defective exocytosis machinery due to decreased expression of soluble N -ethylmaleimide attachment protein receptor (SNARE) complex proteins and loss of cell-cell synchronization in terms of Ca 2+ influx. These defects were normalized by expression of a constitutively active form of Akt in the islets of βDKO mice, preserving insulin secretion in response to glucose. The class IA PI3K pathway in β cells in vivo is important in the regulation of insulin secretion and may be a therapeutic target for type 2 diabetes.

Published
2010

25. Adiponectin suppresses hepatic SREBP1c expression in an AdipoR1/LKB1/AMPK dependent pathway

Author

Kazuma Kaneko, Nabeel Bardeesy, Motoharu Awazawa, Yukiko Okazaki, Takashi Kadowaki, Toshimasa Yamauchi, Kazunori Inabe, Kohjiro Ueki, Shin Ohnishi, and Ryozo Nagai

Subjects
medicine.medical_specialty, Biophysics, Adipokine, AMP-Activated Protein Kinases, Protein Serine-Threonine Kinases, Biochemistry, chemistry.chemical_compound, Mice, AMP-Activated Protein Kinase Kinases, Internal medicine, medicine, Animals, Receptor, Protein kinase A, Molecular Biology, Beta oxidation, Fatty acid synthesis, Adiponectin, Chemistry, Fatty Acids, AMPK, Cell Biology, Mice, Mutant Strains, Recombinant Proteins, Sterol regulatory element-binding protein, Endocrinology, Liver, Hepatocytes, Receptors, Adiponectin, Sterol Regulatory Element Binding Protein 1, Protein Kinases, hormones, hormone substitutes, and hormone antagonists
Abstract

Adiponectin, one of the insulin-sensitizing adipokines, has been shown to activate fatty acid oxidation in liver and skeletal muscle, thus maintaining insulin sensitivity. However, the precise roles of adiponectin in fatty acid synthesis are poorly understood. Here we show that adiponectin administration acutely suppresses expression of sterol regulatory element-binding protein (SREBP) 1c, the master regulator which controls and upregulates the enzymes involved in fatty acid synthesis, in the liver of +Lepr(db)/+Lepr(db) (db/db) mouse as well as in cultured hepatocytes. We also show that adiponectin suppresses SREBP1c by AdipoR1, one of the functional receptors for adiponetin, and furthermore that suppressing either AMP-activated protein kinase (AMPK) via its upstream kinase LKB1 deletion cancels the negative effect of adiponectin on SREBP1c expression. These data show that adiponectin suppresses SREBP1c through the AdipoR1/LKB1/AMPK pathway, and suggest a possible role for adiponectin in the regulation of hepatic fatty acid synthesis.

Published
2009

26. Molecular mechanism of moderate insulin resistance in adiponectin-knockout mice

Author

Takashi Kadowaki, Naoto Kubota, Shinsuke Itoh, Tetsuo Noda, Kaoru Sugi, Wataru Yano, Yasuo Terauchi, Kohjiro Ueki, Masao Moroi, Iseki Takamoto, Motoharu Awazawa, Kumpei Tokuyama, Hitomi Ogata, and Tetsuya Kubota

Subjects
Leptin, Male, medicine.medical_specialty, Endocrinology, Diabetes and Metabolism, Adipokine, Down-Regulation, Mice, Obese, Mice, Endocrinology, Insulin resistance, Downregulation and upregulation, Internal medicine, medicine, Animals, Insulin, Triglycerides, Mice, Knockout, biology, Adiponectin, Chemistry, Lipogenesis, Skeletal muscle, Glucose clamp technique, medicine.disease, Insulin receptor, medicine.anatomical_structure, Liver, biology.protein, Glucose Clamp Technique, Insulin Resistance, Signal Transduction
Abstract

Adiponectin has been proposed to act as an antidiabetic adipokine, suppressing gluconeogenesis and stimulating fatty acid oxidation in the liver and skeletal muscle. Although adiponectin-knockout (adipo(-/-)) mice are known to exhibit insulin resistance, the degrees of insulin resistance and glucose intolerance are unexpectedly only moderate. In this study, the adipo(-/-) mice showed hepatic, but not muscle, insulin resistance. insulin-stimulated phosphorylation of IRS-1 and IRS-2 was impaired, the IRS-2 protein level was decreased, and insulin-stimulated phosphorylation of Akt was decreased in the liver of the adipo(-/-) mice. However, the triglyceride content in the liver was not increased in these mice, despite the decrease in the PPARalpha expression involved in lipid combustion, since the expressions of lipogenic genes such as SREBP-1 and SCD-1 were decreased in association with the increased leptin sensitivity. Consistent with this, the down-regulation SREBP-1 and SCD-1 observed in the adipo(-/-) mice was no longer observed, and the hepatic triglyceride content was significantly increased in the adiponectin leptin double-knockout (adipo(-/-)ob/ob) mice. On the other hand, the triglyceride content in the skeletal muscle was significantly decreased in the adipo(-/-) mice, probably due to up-regulated AMPK activity associated with the increased leptin sensitivity. In fact, these phenotypes in the skeletal muscle of these mice were no longer observed in the adipo(-/-)ob/ob mice. In conclusion, adipo(-/-) mice showed impaired insulin signaling in the liver to cause hepatic insulin resistance, however, no increase in the triglyceride content was observed in either the liver or the skeletal muscle, presumably on account of the increased leptin sensitivity.

Published
2008

27. Targeted disruption of AdipoR1 and AdipoR2 causes abrogation of adiponectin binding and metabolic actions

Author

Takeshi Takazawa, Ryozo Nagai, Hitomi Ogata, Philippe Froguel, Masato Iwabu, Tomohiro Ide, Miki Okada-Iwabu, Tetsuya Kubota, Hideki Kozono, Kazuyuki Tobe, Iseki Takamoto, Yasunori Nio, Atsushi Tsuchida, Yusuke Hada, Masaki Tsunoda, Yusuke Ito, Junji Kamon, Kazuo Hara, Masaki Kobayashi, Toshiyuki Maki, Motoharu Awazawa, Kumpei Tokuyama, Kohjiro Ueki, Katsuyoshi Kumagai, Toshimasa Yamauchi, Naoto Kubota, Kouji Murakami, Sachiko Kawamoto, Takashi Kadowaki, Information génomique et structurale (IGS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Génétique des maladies multifactorielles (GMM), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Section of Genomic Medicine, Imperial College London, Genome Centre, and Imperial College London-Hammersmith campus

Subjects
Blood Glucose, Male, Peroxisome proliferator-activated receptor, Mice, Obese, MESH: Gene Targeting, MESH: Mice, Knockout, chemistry.chemical_compound, Mice, 0302 clinical medicine, MESH: Diabetes Mellitus, Experimental, MESH: Animals, MESH: Mice, Obese, MESH: Receptors, Cell Surface, MESH: Lipid Metabolism, chemistry.chemical_classification, Adiponectin receptor 1, Mice, Knockout, 0303 health sciences, Adiponectin receptor 2, General Medicine, MESH: Adiponectin, AdipoRon, Gene Targeting, Receptors, Leptin, Female, Adiponectin, Receptors, Adiponectin, Protein Binding, medicine.medical_specialty, Adipokine, 030209 endocrinology & metabolism, Receptors, Cell Surface, Biology, General Biochemistry, Genetics and Molecular Biology, Diabetes Mellitus, Experimental, 03 medical and health sciences, MESH: Mice, Inbred C57BL, Internal medicine, medicine, MESH: Protein Binding, Animals, MESH: Mice, 030304 developmental biology, AMPK, Lipid Metabolism, MESH: Male, Mice, Inbred C57BL, Endocrinology, chemistry, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, MESH: Blood Glucose, Adiponectin binding, MESH: Female
Abstract

Adiponectin plays a central role as an antidiabetic and antiatherogenic adipokine. AdipoR1 and AdipoR2 serve as receptors for adiponectin in vitro, and their reduction in obesity seems to be correlated with reduced adiponectin sensitivity. Here we show that adenovirus-mediated expression of AdipoR1 and R2 in the liver of Lepr(-/-) mice increased AMP-activated protein kinase (AMPK) activation and peroxisome proliferator-activated receptor (PPAR)-alpha signaling pathways, respectively. Activation of AMPK reduced gluconeogenesis, whereas expression of the receptors in both cases increased fatty acid oxidation and lead to an amelioration of diabetes. Alternatively, targeted disruption of AdipoR1 resulted in the abrogation of adiponectin-induced AMPK activation, whereas that of AdipoR2 resulted in decreased activity of PPAR-alpha signaling pathways. Simultaneous disruption of both AdipoR1 and R2 abolished adiponectin binding and actions, resulting in increased tissue triglyceride content, inflammation and oxidative stress, and thus leading to insulin resistance and marked glucose intolerance. Therefore, AdipoR1 and R2 serve as the predominant receptors for adiponectin in vivo and play important roles in the regulation of glucose and lipid metabolism, inflammation and oxidative stress in vivo.

Published
2006

28. [Not Available]

Author

Motoharu, Awazawa, Mitsuhiko, Noda, and Takashi, Kadowaki

Published
2005

29. Deregulation of Pancreas-Specific Oxidoreductin ERO1β in the Pathogenesis of Diabetes Mellitus.

Author

Motoharu Awazawa, Takashi Futami, Michinori Sakada, Kazuma Kaneko, Mitsuru Ohsugi, Keizo Nakaya, Ai Terai, Ryo Suzuki, Masato Koike, Yasuo Uchiyama, Takashi Kadowaki, and Kohjiro Ueki

Subjects
*ENDOPLASMIC reticulum, *DIABETES, *PROTEIN folding, *PANCREATIC beta cells, *HOMEOSTASIS
Abstract

A growing body of evidence has underlined the significance of endoplasmic reticulum (ER) stress in the pathogenesis of diabetes mellitus. ER oxidoreductin 1β (ERO1β) is a pancreas-specific disulfide oxidase that is known to be upregulated in response to ER stress and to promote protein folding in pancreatic β cells. It has recently been demonstrated that ERO1β promotes insulin biogenesis in β cells and thus contributes to physiological glucose homeostasis, though it is unknown if ERO1β is involved in the pathogenesis of diabetes mellitus. Here we show that in diabetic model mice, ERO1β expression is paradoxically decreased in β cells despite the indications of increased ER stress. However, overexpression of ERO1β in β cells led to the upregulation of unfolded protein response genes and markedly enlarged ER lumens, indicating that ERO1β overexpression caused ER stress in the β cells. Insulin contents were decreased in the β cells that overexpressed ERO1β, leading to impaired insulin secretion in response to glucose stimulation. These data indicate the importance of the fine-tuning of the ER redox state, the disturbance of which would compromise the function of β cells in insulin synthesis and thus contribute to the pathogenesis of diabetes mellitus. [ABSTRACT FROM AUTHOR]

Published
2014
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30. Food Perception Primes Hepatic ER Homeostasis via Melanocortin-Dependent Control of mTOR Activation

Author

Hans-Georg Sprenger, Paula Gabel, Motoharu Awazawa, Sinika Henschke, Hendrik Nolte, Claus Brandt, Donald A. Morgan, Martin E. Hess, Thomas Langer, Henning Fenselau, Jens C. Brüning, Linda Engström Ruud, Marcus Krüger, Stefan Günther, and Kamal Rahmouni

Subjects
0301 basic medicine, X-Box Binding Protein 1, XBP1, Sensory system, Biology, Optogenetics, Endoplasmic Reticulum, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Food Preferences, Mice, Norepinephrine, Animals, Humans, PI3K/AKT/mTOR pathway, Regulation of gene expression, Mice, Knockout, Neurons, Principal Component Analysis, TOR Serine-Threonine Kinases, digestive, oral, and skin physiology, Lipid metabolism, Cell biology, Melanocortins, Mice, Inbred C57BL, 030104 developmental biology, Gene Expression Regulation, Liver, Hepatocytes, Phosphatidylcholines, Receptor, Melanocortin, Type 4, Female, Melanocortin, Homeostasis, Signal Transduction
Abstract

Summary Adaptation of liver to the postprandial state requires coordinated regulation of protein synthesis and folding aligned with changes in lipid metabolism. Here we demonstrate that sensory food perception is sufficient to elicit early activation of hepatic mTOR signaling, Xbp1 splicing, increased expression of ER-stress genes, and phosphatidylcholine synthesis, which translate into a rapid morphological ER remodeling. These responses overlap with those activated during refeeding, where they are maintained and constantly increased upon nutrient supply. Sensory food perception activates POMC neurons in the hypothalamus, optogenetic activation of POMC neurons activates hepatic mTOR signaling and Xbp1 splicing, whereas lack of MC4R expression attenuates these responses to sensory food perception. Chemogenetic POMC-neuron activation promotes sympathetic nerve activity (SNA) subserving the liver, and norepinephrine evokes the same responses in hepatocytes in vitro and in liver in vivo as observed upon sensory food perception. Collectively, our experiments unravel that sensory food perception coordinately primes postprandial liver ER adaption through a melanocortin-SNA-mTOR-Xbp1s axis. Video Abstract Download : Download video (14MB)

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