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1. Discovery and preclinical characterization of the antagonist anti-PD-L1 monoclonal antibody LY3300054

Author

Andreas Sonyi, Michael Kalos, Anthony Pennello, Douglas Burtrum, Mary Murphy, Xinlei Chen, George Wang, David Surguladze, Ivan Inigo, Yiwei Zhang, Jaafar N. Haidar, Carmine Carpenito, Maria Malabunga, Darin Chin, Amelie Forest, Ruslan D. Novosiadly, Gerald Hall, Dale L. Ludwig, Leyi Shen, Yiwen Li, and Laurent Malherbe

Subjects
0301 basic medicine, Cancer Research, medicine.drug_class, T cell, T-Lymphocytes, Immunology, Monoclonal antibody, lcsh:RC254-282, B7-H1 Antigen, Cell Line, 03 medical and health sciences, Mice, Immune system, Cricetulus, Neoplasms, medicine, Immunology and Allergy, Animals, Humans, Receptor, Anti-PD-L1 Monoclonal Antibody LY3300054, Pharmacology, Innate immune system, biology, Chemistry, Antibodies, Monoclonal, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, Macaca fascicularis, 030104 developmental biology, medicine.anatomical_structure, Oncology, Immunoglobulin G, biology.protein, Cancer research, Molecular Medicine, Female, Antibody, CD80
Abstract

Background Modulation of the PD-1/PD-L1 axis through antagonist antibodies that block either receptor or ligand has been shown to reinvigorate the function of tumor-specific T cells and unleash potent anti-tumor immunity, leading to durable objective responses in a subset of patients across multiple tumor types. Results Here we describe the discovery and preclinical characterization of LY3300054, a fully human IgG1λ monoclonal antibody that binds to human PD-L1 with high affinity and inhibits interactions of PD-L1 with its two cognate receptors PD-1 and CD80. The functional activity of LY3300054 on primary human T cells is evaluated using a series of in vitro T cell functional assays and in vivo models using human-immune reconstituted mice. LY3300054 is shown to induce primary T cell activation in vitro, increase T cell activation in combination with anti-CTLA4 antibody, and to potently enhance anti-tumor alloreactivity in several xenograft mouse tumor models with reconstituted human immune cells. High-content molecular analysis of tumor and peripheral tissues from animals treated with LY3300054 reveals distinct adaptive immune activation signatures, and also previously not described modulation of innate immune pathways. Conclusions LY3300054 is currently being evaluated in phase I clinical trials for oncology indications.

Published
2018
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2. The Folate Pathway Inhibitor Pemetrexed Pleiotropically Enhances Effects of Cancer Immunotherapy

Author

Yanxia Li, Frank C. Dorsey, Jason Manro, Kenneth D. Roth, Erik R. Rasmussen, Ruslan D. Novosiadly, Gerald Hall, Andrew Capen, Bonita D. Jones, Zhao Hai Lu, Bo Tan, Gregory P. Donoho, Darin Chin, Manisha Brahmachary, David Schaer, Thompson N. Doman, Sandaruwan Geeganage, Catalina Meyer, Nelusha Amaladas, Andreas Sonyi, Michael Kalos, Carmine Carpenito, Krishna Chodavarapu, Shuang Luo, Xiaodong Huang, David Surguladze, and Alexander Nikolayev

Subjects
0301 basic medicine, Cancer Research, medicine.medical_treatment, T cell, T-Lymphocytes, Apoptosis, Pembrolizumab, Antibodies, Monoclonal, Humanized, Lymphocyte Activation, B7-H1 Antigen, 03 medical and health sciences, Mice, 0302 clinical medicine, Immune system, Antineoplastic Agents, Immunological, Folic Acid, Oxygen Consumption, Cancer immunotherapy, Tumor Cells, Cultured, Medicine, Animals, Humans, Cell Proliferation, Mice, Inbred BALB C, business.industry, Cell growth, Gene Expression Profiling, Immunotherapy, Xenograft Model Antitumor Assays, Mitochondria, Mice, Inbred C57BL, 030104 developmental biology, Pemetrexed, medicine.anatomical_structure, Oncology, 030220 oncology & carcinogenesis, Colonic Neoplasms, Cancer research, Immunogenic cell death, Female, business, medicine.drug
Abstract

Purpose: Combination strategies leveraging chemotherapeutic agents and immunotherapy have held the promise as a method to improve benefit for patients with cancer. However, most chemotherapies have detrimental effects on immune homeostasis and differ in their ability to induce immunogenic cell death (ICD). The approval of pemetrexed and carboplatin with anti-PD-1 (pembrolizumab) for treatment of non–small cell lung cancer represents the first approved chemotherapy and immunotherapy combination. Although the clinical data suggest a positive interaction between pemetrexed-based chemotherapy and immunotherapy, the underlying mechanism remains unknown. Experimental Design: Mouse tumor models (MC38, Colon26) and high-content biomarker studies (flow cytometry, Quantigene Plex, and nCounter gene expression analysis) were deployed to obtain insights into the mechanistic rationale behind the efficacy observed with pemetrexed/anti-PD-L1 combination. ICD in tumor cell lines was assessed by calreticulin and HMGB-1 immunoassays, and metabolic function of primary T cells was evaluated by Seahorse analysis. Results: Pemetrexed treatment alone increased T-cell activation in mouse tumors in vivo, robustly induced ICD in mouse tumor cells and exerted T-cell–intrinsic effects exemplified by augmented mitochondrial function and enhanced T-cell activation in vitro. Increased antitumor efficacy and pronounced inflamed/immune activation were observed when pemetrexed was combined with anti-PD-L1. Conclusions: Pemetrexed augments systemic intratumor immune responses through tumor intrinsic mechanisms including immunogenic cell death, T-cell–intrinsic mechanisms enhancing mitochondrial biogenesis leading to increased T-cell infiltration/activation along with modulation of innate immune pathways, which are significantly enhanced in combination with PD-1 pathway blockade. See related commentary by Buque et al., p. 6890

Published
2019

3. Targeting the TGFβ pathway with galunisertib, a TGFβRI small molecule inhibitor, promotes anti-tumor immunity leading to durable, complete responses, as monotherapy and in combination with checkpoint blockade

Author

Rikke B. Holmgaard, Jason Manro, David Schaer, Gerald Hall, Gregory D. Plowman, Julie Dobkin, Mary Murphy, Stephen Castaneda, Xiaohong Xu, Philip W. Iversen, Ivan Inigo, Karim A. Benhadji, David Surguladze, Michael Kalos, Kyla Driscoll, Yanxia Li, and Ruslan D. Novosiadly

Subjects
Male, 0301 basic medicine, Cancer Research, Regulatory T cell, medicine.medical_treatment, T cell, Immunology, Galunisertib, lcsh:RC254-282, Mice, 03 medical and health sciences, 0302 clinical medicine, Immune system, Antigen, Cancer immunotherapy, Transforming Growth Factor beta, Animals, Humans, Immunology and Allergy, Medicine, Pharmacology, business.industry, Immunotherapy, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, Combined Modality Therapy, TGF-β receptor I, Disease Models, Animal, 030104 developmental biology, medicine.anatomical_structure, Oncology, Antitumor efficacy, 030220 oncology & carcinogenesis, Quinolines, Cancer research, Pyrazoles, Molecular Medicine, Female, business, Checkpoint inhibitors, CD8, Research Article
Abstract

Background TGFβ signaling plays a pleotropic role in tumor biology, promoting tumor proliferation, invasion and metastasis, and escape from immune surveillance. Inhibiting TGFβ’s immune suppressive effects has become of particular interest as a way to increase the benefit of cancer immunotherapy. Here we utilized preclinical models to explore the impact of the clinical stage TGFβ pathway inhibitor, galunisertib, on anti-tumor immunity at clinically relevant doses. Results In vitro treatment with galunisertib reversed TGFβ and regulatory T cell mediated suppression of human T cell proliferation. In vivo treatment of mice with established 4T1-LP tumors resulted in strong dose-dependent anti-tumor activity with close to 100% inhibition of tumor growth and complete regressions upon cessation of treatment in 50% of animals. This effect was CD8+ T cell dependent, and led to increased T cell numbers in treated tumors. Mice with durable regressions rejected tumor rechallenge, demonstrating the establishment of immunological memory. Consequently, mice that rejected immunogenic 4T1-LP tumors were able to resist rechallenge with poorly immunogenic 4 T1 parental cells, suggesting the development of a secondary immune response via antigen spreading as a consequence of effective tumor targeting. Combination of galunisertib with PD-L1 blockade resulted in improved tumor growth inhibition and complete regressions in colon carcinoma models, demonstrating the potential synergy when cotargeting TGFβ and PD-1/PD-L1 pathways. Combination therapy was associated with enhanced anti-tumor immune related gene expression profile that was accelerated compared to anti-PD-L1 monotherapy. Conclusions Together these data highlight the ability of galunisertib to modulate T cell immunity and the therapeutic potential of combining galunisertib with current PD-1/L1 immunotherapy.

Published
2018
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4. Correction to: Discovery and preclinical characterization of the antagonist anti-PD-L1 monoclonal antibody LY3300054

Author

Douglas Burtrum, Laurent Malherbe, David Surguladze, Dale L. Ludwig, Ruslan D. Novosiadly, Anthony Pennello, George Wang, Xinlei Chen, Yiwen Li, Gerald Hall, Mary Murphy, Ivan Inigo, Maria Malabunga, Leyi Shen, Darin Chin, Carmine Carpenito, Amelie Forest, Yiwei Zhang, Andreas Sonyi, Michael Kalos, and Jaafar N. Haidar

Subjects
0301 basic medicine, Pharmacology, Cancer Research, business.industry, Immunology, Antagonist, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, lcsh:RC254-282, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Oncology, 030220 oncology & carcinogenesis, Cancer research, Molecular Medicine, Immunology and Allergy, Medicine, business, Anti-PD-L1 Monoclonal Antibody LY3300054, Research Article
Abstract

Background Modulation of the PD-1/PD-L1 axis through antagonist antibodies that block either receptor or ligand has been shown to reinvigorate the function of tumor-specific T cells and unleash potent anti-tumor immunity, leading to durable objective responses in a subset of patients across multiple tumor types. Results Here we describe the discovery and preclinical characterization of LY3300054, a fully human IgG1λ monoclonal antibody that binds to human PD-L1 with high affinity and inhibits interactions of PD-L1 with its two cognate receptors PD-1 and CD80. The functional activity of LY3300054 on primary human T cells is evaluated using a series of in vitro T cell functional assays and in vivo models using human-immune reconstituted mice. LY3300054 is shown to induce primary T cell activation in vitro, increase T cell activation in combination with anti-CTLA4 antibody, and to potently enhance anti-tumor alloreactivity in several xenograft mouse tumor models with reconstituted human immune cells. High-content molecular analysis of tumor and peripheral tissues from animals treated with LY3300054 reveals distinct adaptive immune activation signatures, and also previously not described modulation of innate immune pathways. Conclusions LY3300054 is currently being evaluated in phase I clinical trials for oncology indications. Electronic supplementary material The online version of this article (10.1186/s40425-018-0329-7) contains supplementary material, which is available to authorized users.

Published
2018
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5. Abstract 3945: The folate pathway inhibitor pemetrexed pleiotropically enhances effects of cancer immunotherapy via immunogenic tumor cell death and T cell-intrinsic mechanisms

Author

Frank C. Dorsey, Thompson N. Doman, Kenneth D. Roth, Yanxia Li, Ruslan D. Novosiadly, Gerald Hall, Greg Donoho, Carmine Carpenito, Jason Manro, David Schaer, Erik R. Rasmussen, David Surguladze, Xiaodong Hong, Bonita D. Jones, Bo Tan, Alexander Nikolayev, Krishna Chodavarapu, Zhao Hai Lu, Shuang Luo, Manisha Brahmachary, Andrew Capen, Andreas Sonyi, Michael Kalos, Nelusha Amaladas, Darin Chin, Sandaruwan Geeganage, and Catalina Meyer

Subjects
0301 basic medicine, Cancer Research, business.industry, medicine.medical_treatment, T cell, Pembrolizumab, Immunotherapy, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Immune system, Pemetrexed, medicine.anatomical_structure, Oncology, Cancer immunotherapy, medicine, Cancer research, Immunogenic cell death, Cytotoxic T cell, business, 030215 immunology, medicine.drug
Abstract

Combination strategies leveraging chemotherapy and immunotherapy have held the promise as a method to improve benefit to cancer patients. However, most chemotherapies have detrimental effects on immune homeostasis and do not induce immunogenic cell death. The positive phase III trial of pemetrexed/carboplatin with the PD-1 antibody pembrolizumab in NSCLC (Keynote-189) lead to the first chemotherapy/immunotherapy combination ever approved. While this suggests a positive interaction between pemetrexed-based chemotherapy and PD-1 therapy, the underlying mechanism is unknown. Therefore, it is important to understand the role of pemetrexed in modulating antitumor immune response to assure application of this therapy to the appropriate patients. To characterize the effects of pemetrexed on intra-tumor immune response, murine tumor models which were sensitive to pemetrexed and known to be sensitive to PD-L1, were treated with pemetrexed with or without carboplatin, or anti-mouse PD-L1. In MC38 tumors, pemetrexed monotherapy demonstrated a trend towards an increased frequency of intra-tumor leukocytes that was accompanied by immune-related gene expression changes indicative of enhanced T cell infiltration and/or activation. Gene expression induced by pemetrexed was largely unaffected by carboplatin. Treatment of both MC38 and Colon26 tumor cells in vitro with pemetrexed induced release of HMGB1, indicative of immunogenic cell death. Although proliferation of primary human T cells was slightly reduced by pemetrexed, at clinically relevant concentrations, treatment lead to an enhanced T cell activation phenotype, including upregulation of multiple interferon gamma-induced genes, and increased mitochondrial respiration. This correlated with improved antigen specific in vitro cytotoxic activity of OT-1 TCR transgenic CD8 T cells when treated with pemetrexed during priming with OVA peptide. Treatment with pemetrexed and PD-L1 demonstrated a combination benefit compared to either monotherapy in both tumor models. Pathway Analysis of gene expression data revealed that improved antigen presentation, enhanced T cell and cytokine signaling and an engagement of CD4+ T cell-mediated immunity during the combination. This correlated with upregulation of MHC-I & II on monocytes, macrophages and tumor cells, suggesting increased immune priming. Accordingly, treatment with S1P1R antagonist (FTY720, preventing T cell LN egress) after initiation of therapy resulted in a loss of combination efficacy. This data suggests that pemetrexed promotes intra-tumor T cell-mediated immune response through immunogenic tumor cell death and increased activation and metabolic fitness of T cells. The combination of these effects results in enhanced T cell function leading to an improved anti-tumor efficacy in combination with PD-L1 antibody Citation Format: David A. Schaer, Nelusha Amaladas, Zhao Hai Lu, Erik Rasmussen, Andreas Sonyi, Darin Chin, Andrew Capen, Yanxia Li, Catalina Meyer, Bonita Jones, Xiaodong Hong, Shuang Luo, Carmine Carpenito, Kenneth Roth, Alexander Nikolayev, Bo Tan, Manisha Brahmachary, Krishna Chodavarapu, Frank Charles Dorsey, Jason Manro, Thompson Doman, Greg Donoho, David Surguladze, Gerald Hall, Sandaruwan Geeganage, Michael Kalos, Ruslan Novosiadly. The folate pathway inhibitor pemetrexed pleiotropically enhances effects of cancer immunotherapy via immunogenic tumor cell death and T cell-intrinsic mechanisms [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 3945.

Published
2019
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6. 31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016): part two

Author

Casey Ager, Matthew Reilley, Courtney Nicholas, Todd Bartkowiak, Ashvin Jaiswal, Michael Curran, Tina C. Albershardt, Anshika Bajaj, Jacob F. Archer, Rebecca S. Reeves, Lisa Y. Ngo, Peter Berglund, Jan ter Meulen, Caroline Denis, Hormas Ghadially, Thomas Arnoux, Fabien Chanuc, Nicolas Fuseri, Robert W. Wilkinson, Nicolai Wagtmann, Yannis Morel, Pascale Andre, Michael B. Atkins, Matteo S. Carlino, Antoni Ribas, John A. Thompson, Toni K. Choueiri, F. Stephen Hodi, Wen-Jen Hwu, David F. McDermott, Victoria Atkinson, Jonathan S. Cebon, Bernie Fitzharris, Michael B. Jameson, Catriona McNeil, Andrew G. Hill, Eric Mangin, Malidi Ahamadi, Marianne van Vugt, Mariëlle van Zutphen, Nageatte Ibrahim, Georgina V. Long, Robyn Gartrell, Zoe Blake, Ines Simoes, Yichun Fu, Takuro Saito, Yingzhi Qian, Yan Lu, Yvonne M. Saenger, Sadna Budhu, Olivier De Henau, Roberta Zappasodi, Kyle Schlunegger, Bruce Freimark, Jeff Hutchins, Christopher A. Barker, Jedd D. Wolchok, Taha Merghoub, Elena Burova, Omaira Allbritton, Peter Hong, Jie Dai, Jerry Pei, Matt Liu, Joel Kantrowitz, Venus Lai, William Poueymirou, Douglas MacDonald, Ella Ioffe, Markus Mohrs, William Olson, Gavin Thurston, Cristian Capasso, Federica Frascaro, Sara Carpi, Siri Tähtinen, Sara Feola, Manlio Fusciello, Karita Peltonen, Beatriz Martins, Madeleine Sjöberg, Sari Pesonen, Tuuli Ranki, Lukasz Kyruk, Erkko Ylösmäki, Vincenzo Cerullo, Fabio Cerignoli, Biao Xi, Garret Guenther, Naichen Yu, Lincoln Muir, Leyna Zhao, Yama Abassi, Víctor Cervera-Carrascón, Mikko Siurala, João Santos, Riikka Havunen, Suvi Parviainen, Akseli Hemminki, Angus Dalgleish, Satvinder Mudan, Mark DeBenedette, Ana Plachco, Alicia Gamble, Elizabeth W. Grogan, John Krisko, Irina Tcherepanova, Charles Nicolette, Pooja Dhupkar, Ling Yu, Eugenie S. Kleinerman, Nancy Gordon, Italia Grenga, Lauren Lepone, Sofia Gameiro, Karin M. Knudson, Massimo Fantini, Kwong Tsang, James Hodge, Renee Donahue, Jeffrey Schlom, Elizabeth Evans, Holm Bussler, Crystal Mallow, Christine Reilly, Sebold Torno, Maria Scrivens, Cathie Foster, Alan Howell, Leslie Balch, Alyssa Knapp, John E. Leonard, Mark Paris, Terry Fisher, Siwen Hu-Lieskovan, Ernest Smith, Maurice Zauderer, William Fogler, Marilyn Franklin, Matt Thayer, Dan Saims, John L. Magnani, Jian Gong, Michael Gray, George Fromm, Suresh de Silva, Louise Giffin, Xin Xu, Jason Rose, Taylor H. Schreiber, Sofia R. Gameiro, Paul E. Clavijo, Clint T. Allen, James W. Hodge, Kwong Y. Tsang, Jane Grogan, Nicholas Manieri, Eugene Chiang, Patrick Caplazi, Mahesh Yadav, Patrick Hagner, Hsiling Chiu, Michelle Waldman, Anke Klippel, Anjan Thakurta, Michael Pourdehnad, Anita Gandhi, Ian Henrich, Laura Quick, Rob Young, Margaret Chou, Andrew Hotson, Stephen Willingham, Po Ho, Carmen Choy, Ginna Laport, Ian McCaffery, Richard Miller, Kimberly A. Tipton, Kenneth R. Wong, Victoria Singson, Chihunt Wong, Chanty Chan, Yuanhiu Huang, Shouchun Liu, Jennifer H. Richardson, W. Michael Kavanaugh, James West, Bryan A. Irving, Ritika Jaini, Matthew Loya, Charis Eng, Melissa L. Johnson, Alex A. Adjei, Mateusz Opyrchal, Suresh Ramalingam, Pasi A. Janne, George Dominguez, Dmitry Gabrilovich, Laura de Leon, Jeannette Hasapidis, Scott J. Diede, Peter Ordentlich, Scott Cruickshank, Michael L. Meyers, Matthew D. Hellmann, Pawel Kalinski, Amer Zureikat, Robert Edwards, Ravi Muthuswamy, Nataša Obermajer, Julie Urban, Lisa H. Butterfield, William Gooding, Herbert Zeh, David Bartlett, Olga Zubkova, Larissa Agapova, Marina Kapralova, Liudmila Krasovskaia, Armen Ovsepyan, Maxim Lykov, Artem Eremeev, Vladimir Bokovanov, Olga Grigoryeva, Andrey Karpov, Sergey Ruchko, Alexandr Shuster, Danny N. Khalil, Luis Felipe Campesato, Yanyun Li, Adam S. Lazorchak, Troy D. Patterson, Yueyun Ding, Pottayil Sasikumar, Naremaddepalli Sudarshan, Nagaraj Gowda, Raghuveer Ramachandra, Dodheri Samiulla, Sanjeev Giri, Rajesh Eswarappa, Murali Ramachandra, David Tuck, Timothy Wyant, Jasmin Leshem, Xiu-fen Liu, Tapan Bera, Masaki Terabe, Birgit Bossenmaier, Gerhard Niederfellner, Yoram Reiter, Ira Pastan, Leiming Xia, Yang Xia, Yangyang Hu, Yi Wang, Yangyi Bao, Fu Dai, Shiang Huang, Elaine Hurt, Robert E. Hollingsworth, Lawrence G. Lum, Alfred E. Chang, Max S. Wicha, Qiao Li, Thomas Mace, Neil Makhijani, Erin Talbert, Gregory Young, Denis Guttridge, Darwin Conwell, Gregory B. Lesinski, Rodney JM Macedo Gonzales, Austin P. Huffman, Ximi K. Wang, Ran Reshef, Andy MacKinnon, Jason Chen, Matt Gross, Gisele Marguier, Peter Shwonek, Natalija Sotirovska, Susanne Steggerda, Francesco Parlati, Amani Makkouk, Mark K. Bennett, Ethan Emberley, Tony Huang, Weiqun Li, Silinda Neou, Alison Pan, Jing Zhang, Winter Zhang, Netonia Marshall, Thomas U. Marron, Judith Agudo, Brian Brown, Joshua Brody, Christopher McQuinn, Matthew Farren, Hannah Komar, Reena Shakya, Thomas Ludwug, Y. Maurice Morillon, Scott A. Hammond, John W. Greiner, Pulak R. Nath, Anthony L. Schwartz, Dragan Maric, David D. Roberts, Aung Naing, Kyriakos P. Papadopoulos, Karen A. Autio, Deborah J. Wong, Manish Patel, Gerald Falchook, Shubham Pant, Patrick A. Ott, Melinda Whiteside, Amita Patnaik, John Mumm, Filip Janku, Ivan Chan, Todd Bauer, Rivka Colen, Peter VanVlasselaer, Gail L. Brown, Nizar M. Tannir, Martin Oft, Jeffrey Infante, Evan Lipson, Ajay Gopal, Sattva S. Neelapu, Philippe Armand, Stephen Spurgeon, John P. Leonard, Rachel E. Sanborn, Ignacio Melero, Thomas F. Gajewski, Matthew Maurer, Serena Perna, Andres A. Gutierrez, Raphael Clynes, Priyam Mitra, Satyendra Suryawanshi, Douglas Gladstone, Margaret K. Callahan, James Crooks, Sheila Brown, Audrey Gauthier, Marc Hillairet de Boisferon, Andrew MacDonald, Laura Rosa Brunet, William T. Rothwell, Peter Bell, James M. Wilson, Fumi Sato-Kaneko, Shiyin Yao, Shannon S. Zhang, Dennis A. Carson, Cristina Guiducci, Robert L. Coffman, Kazutaka Kitaura, Takaji Matsutani, Ryuji Suzuki, Tomoko Hayashi, Ezra E. W. Cohen, David Schaer, Yanxia Li, Julie Dobkin, Michael Amatulli, Gerald Hall, Thompson Doman, Jason Manro, Frank Charles Dorsey, Lillian Sams, Rikke Holmgaard, Krishnadatt Persaud, Dale Ludwig, David Surguladze, John S. Kauh, Ruslan Novosiadly, Michael Kalos, Kyla Driscoll, Hardev Pandha, Christy Ralph, Kevin Harrington, Brendan Curti, Wallace Akerley, Sumati Gupta, Alan Melcher, David Mansfield, David R. Kaufman, Emmett Schmidt, Mark Grose, Bronwyn Davies, Roberta Karpathy, Darren Shafren, Katerina Shamalov, Cyrille Cohen, Naveen Sharma, James Allison, Tala Shekarian, Sandrine Valsesia-Wittmann, Christophe Caux, Aurelien Marabelle, Brian M. Slomovitz, Kathleen M. Moore, Hagop Youssoufian, Marshall Posner, Poonam Tewary, Alan D. Brooks, Ya-Ming Xu, Kithsiri Wijeratne, Leslie A. A. Gunatilaka, Thomas J. Sayers, John P. Vasilakos, Tesha Alston, Simon Dovedi, James Elvecrog, Iwen Grigsby, Ronald Herbst, Karen Johnson, Craig Moeckly, Stefanie Mullins, Kristen Siebenaler, Julius SternJohn, Ashenafi Tilahun, Mark A. Tomai, Katharina Vogel, Eveline E. Vietsch, Anton Wellstein, Martin Wythes, Stefano Crosignani, Joseph Tumang, Shilpa Alekar, Patrick Bingham, Sandra Cauwenberghs, Jenny Chaplin, Deepak Dalvie, Sofie Denies, Coraline De Maeseneire, JunLi Feng, Kim Frederix, Samantha Greasley, Jie Guo, James Hardwick, Stephen Kaiser, Katti Jessen, Erick Kindt, Marie-Claire Letellier, Wenlin Li, Karen Maegley, Reece Marillier, Nichol Miller, Brion Murray, Romain Pirson, Julie Preillon, Virginie Rabolli, Chad Ray, Kevin Ryan, Stephanie Scales, Jay Srirangam, Jim Solowiej, Al Stewart, Nicole Streiner, Vince Torti, Konstantinos Tsaparikos, Xianxian Zheng, Gregory Driessens, Bruno Gomes, Manfred Kraus, Chunxiao Xu, Yanping Zhang, Giorgio Kradjian, Guozhong Qin, Jin Qi, Xiaomei Xu, Bo Marelli, Huakui Yu, Wilson Guzman, Rober Tighe, Rachel Salazar, Kin-Ming Lo, Jessie English, Laszlo Radvanyi, Yan Lan, Michael Postow, Yasin Senbabaoglu, Billel Gasmi, Hong Zhong, Cailian Liu, Daniel Hirschhorhn-Cymerman, Yuanyuan Zha, Gregory Malnassy, Noreen Fulton, Jae-Hyun Park, Wendy Stock, Yusuke Nakamura, Hongtao Liu, Xiaoming Ju, Rachelle Kosoff, Kimberly Ramos, Brandon Coder, Robert Petit, Michael Princiotta, Kyle Perry, Jun Zou, Ainhoa Arina, Christian Fernandez, Wenxin Zheng, Michael A. Beckett, Helena J. Mauceri, Yang-Xin Fu, Ralph R. Weichselbaum, Whitney Lewis, Yanyan Han, Yeting Wu, Chou Yang, Jing Huang, Dongyun Wu, Jin Li, Xiaoling Liang, Xiangjun Zhou, Jinlin Hou, Raffit Hassan, Thierry Jahan, Scott J. Antonia, Hedy L. Kindler, Evan W. Alley, Somayeh Honarmand, Weiqun Liu, Meredith L. Leong, Chan C. Whiting, Nitya Nair, Amanda Enstrom, Edward E. Lemmens, Takahiro Tsujikawa, Sushil Kumar, Lisa M. Coussens, Aimee L. Murphy, Dirk G. Brockstedt, Sven D. Koch, Martin Sebastian, Christian Weiss, Martin Früh, Miklos Pless, Richard Cathomas, Wolfgang Hilbe, Georg Pall, Thomas Wehler, Jürgen Alt, Helge Bischoff, Michael Geissler, Frank Griesinger, Jens Kollmeier, Alexandros Papachristofilou, Fatma Doener, Mariola Fotin-Mleczek, Madeleine Hipp, Henoch S. Hong, Karl-Josef Kallen, Ute Klinkhardt, Claudia Stosnach, Birgit Scheel, Andreas Schroeder, Tobias Seibel, Ulrike Gnad-Vogt, Alfred Zippelius, Ha-Ram Park, Yong-Oon Ahn, Tae Min Kim, Soyeon Kim, Seulki Kim, Yu Soo Lee, Bhumsuk Keam, Dong-Wan Kim, Dae Seog Heo, Shari Pilon-Thomas, Amy Weber, Jennifer Morse, Krithika Kodumudi, Hao Liu, John Mullinax, Amod A. Sarnaik, Luke Pike, Andrew Bang, Tracy Balboni, Allison Taylor, Alexander Spektor, Tyler Wilhite, Monica Krishnan, Daniel Cagney, Brian Alexander, Ayal Aizer, Elizabeth Buchbinder, Mark Awad, Leena Ghandi, Jonathan Schoenfeld, Elizabeth Lessey-Morillon, Lisa Ridnour, Neil H. Segal, Manish Sharma, Dung T. Le, Robert L. Ferris, Andrew D. Zelenetz, Ronald Levy, Izidore S. Lossos, Caron Jacobson, Radhakrishnan Ramchandren, John Godwin, A. Dimitrios Colevas, Roland Meier, Suba Krishnan, Xuemin Gu, Jaclyn Neely, John Timmerman, Claire I. Vanpouille-Box, Silvia C. Formenti, Sandra Demaria, Erik Wennerberg, Aranzazu Mediero, Bruce N. Cronstein, Michael P. Gustafson, AriCeli DiCostanzo, Courtney Wheatley, Chul-Ho Kim, Svetlana Bornschlegl, Dennis A. Gastineau, Bruce D. Johnson, Allan B. Dietz, Cameron MacDonald, Mark Bucsek, Guanxi Qiao, Bonnie Hylander, Elizabeth Repasky, William J. Turbitt, Yitong Xu, Andrea Mastro, Connie J. Rogers, Sita Withers, Ziming Wang, Lam T. Khuat, Cordelia Dunai, Bruce R. Blazar, Dan Longo, Robert Rebhun, Steven K. Grossenbacher, Arta Monjazeb, William J. Murphy, Scott Rowlinson, Giulia Agnello, Susan Alters, David Lowe, Nicole Scharping, Ashley V. Menk, Ryan Whetstone, Xue Zeng, Greg M. Delgoffe, Patricia M. Santos, Jian Shi, Greg Delgoffe, Misako Nagasaka, Ammar Sukari, Miranda Byrne-Steele, Wenjing Pan, Xiaohong Hou, Brittany Brown, Mary Eisenhower, Jian Han, Natalie Collins, Robert Manguso, Hans Pope, Yashaswi Shrestha, Jesse Boehm, W. Nicholas Haining, Kyle R. Cron, Ayelet Sivan, Keston Aquino-Michaels, Marco Orecchioni, Davide Bedognetti, Wouter Hendrickx, Claudia Fuoco, Filomena Spada, Francesco Sgarrella, Gianni Cesareni, Francesco Marincola, Kostas Kostarelos, Alberto Bianco, Lucia Delogu, Jessica Roelands, Sabri Boughorbel, Julie Decock, Scott Presnell, Ena Wang, Franco M. Marincola, Peter Kuppen, Michele Ceccarelli, Darawan Rinchai, Damien Chaussabel, Lance Miller, Andrew Nguyen, J. Zachary Sanborn, Charles Vaske, Shahrooz Rabizadeh, Kayvan Niazi, Steven Benz, Shashank Patel, Nicholas Restifo, James White, Sam Angiuoli, Mark Sausen, Sian Jones, Maria Sevdali, John Simmons, Victor Velculescu, Luis Diaz, Theresa Zhang, Jennifer S. Sims, Sunjay M. Barton, Angela Kadenhe-Chiweshe, Filemon Dela Cruz, Andrew T. Turk, Christopher F. Mazzeo, Andrew L. Kung, Jeffrey N. Bruce, Darrell J. Yamashiro, Eileen P. Connolly, Jason Baird, Marka Crittenden, David Friedman, Hong Xiao, Rom Leidner, Bryan Bell, Kristina Young, Michael Gough, Zhen Bian, Koby Kidder, Yuan Liu, Emily Curran, Xiufen Chen, Leticia P. Corrales, Justin Kline, Ethan G. Aguilar, Jennifer Guerriero, Alaba Sotayo, Holly Ponichtera, Alexandra Pourzia, Sara Schad, Ruben Carrasco, Suzan Lazo, Roderick Bronson, Anthony Letai, Richard S. Kornbluth, Sachin Gupta, James Termini, Elizabeth Guirado, Geoffrey W. Stone, Christina Meyer, Laura Helming, Nicholas Wilson, Robert Hofmeister, Natalie J. Neubert, Laure Tillé, David Barras, Charlotte Soneson, Petra Baumgaertner, Donata Rimoldi, David Gfeller, Mauro Delorenzi, Silvia A. Fuertes Marraco, Daniel E. Speiser, Tara S. Abraham, Bo Xiang, Michael S. Magee, Scott A. Waldman, Adam E. Snook, Wojciech Blogowski, Ewa Zuba-Surma, Marta Budkowska, Daria Salata, Barbara Dolegowska, Teresa Starzynska, Leo Chan, Srinivas Somanchi, Kelsey McCulley, Dean Lee, Nico Buettner, Feng Shi, Paisley T. Myers, Stuart Curbishley, Sarah A. Penny, Lora Steadman, David Millar, Ellen Speers, Nicola Ruth, Gabriel Wong, Robert Thimme, David Adams, Mark Cobbold, Remy Thomas, Mariam Al-Muftah, Michael KK Wong, Michael Morse, Joseph I. Clark, Howard L. Kaufman, Gregory A. Daniels, Hong Hua, Tharak Rao, Janice P. Dutcher, Kai Kang, Yogen Saunthararajah, Vamsidhar Velcheti, Vikas Kumar, Firoz Anwar, Amita Verma, Zinal Chheda, Gary Kohanbash, John Sidney, Kaori Okada, Shruti Shrivastav, Diego A. Carrera, Shuming Liu, Naznin Jahan, Sabine Mueller, Ian F. Pollack, Angel M. Carcaboso, Alessandro Sette, Yafei Hou, Hideho Okada, Jessica J. Field, Weiping Zeng, Vincent FS Shih, Che-Leung Law, Peter D. Senter, Shyra J. Gardai, Nicole M. Okeley, Jennifer G. Abelin, Abu Z. Saeed, Stacy A. Malaker, Jeffrey Shabanowitz, Stephen T. Ward, Donald F. Hunt, Pam Profusek, Laura Wood, Dale Shepard, Petros Grivas, Kerstin Kapp, Barbara Volz, Detlef Oswald, Burghardt Wittig, Manuel Schmidt, Julian P. Sefrin, Lars Hillringhaus, Valeria Lifke, Alexander Lifke, Anna Skaletskaya, Jose Ponte, Thomas Chittenden, Yulius Setiady, Eva Sivado, Vincent Thomas, Meddy El Alaoui, Sébastien Papot, Charles Dumontet, Mike Dyson, John McCafferty, Said El Alaoui, Praveen K. Bommareddy, Andrew Zloza, Frederick Kohlhapp, Ann W. Silk, Sachin Jhawar, Tomas Paneque, Jenna Newman, Pedro Beltran, Felicia Cao, Bang-Xing Hong, Tania Rodriguez-Cruz, Xiao-Tong Song, Stephen Gottschalk, Hugo Calderon, Sam Illingworth, Alice Brown, Kerry Fisher, Len Seymour, Brian Champion, Emma Eriksson, Jessica Wenthe, Ann-Charlotte Hellström, Gabriella Paul-Wetterberg, Angelica Loskog, Ioanna Milenova, Magnus Ståhle, Justyna Jarblad-Leja, Gustav Ullenhag, Anna Dimberg, Rafael Moreno, Ramon Alemany, Sharad Goyal, Ann Silk, Janice Mehnert, Nashat Gabrail, Jennifer Bryan, Daniel Medina, Leah Mitchell, Kader Yagiz, Fernando Lopez, Daniel Mendoza, Anthony Munday, Harry Gruber, Douglas Jolly, Steven Fuhrmann, Sasa Radoja, Wei Tan, Aldo Pourchet, Alan Frey, Ian Mohr, Matthew Mulvey, Robert H. I. Andtbacka, Merrick Ross, Sanjiv Agarwala, Kenneth Grossmann, Matthew Taylor, John Vetto, Rogerio Neves, Adil Daud, Hung Khong, Stephanie M. Meek, Richard Ungerleider, Scott Welden, Maki Tanaka, Matthew Williams, Sigrun Hallmeyer, Bernard Fox, Zipei Feng, Christopher Paustian, Carlo Bifulco, Sadia Zafar, Otto Hemminki, Simona Bramante, Lotta Vassilev, Hongjie Wang, Andre Lieber, Silvio Hemmi, Tanja de Gruijl, Anna Kanerva, Tameem Ansari, Srividya Sundararaman, Diana Roen, Paul Lehmann, Anja C. Bloom, Lewis H. Bender, Ian B. Walters, Jay A. Berzofsky, Fanny Chapelin, Eric T. Ahrens, Jeff DeFalco, Michael Harbell, Amy Manning-Bog, Alexander Scholz, Danhui Zhang, Gilson Baia, Yann Chong Tan, Jeremy Sokolove, Dongkyoon Kim, Kevin Williamson, Xiaomu Chen, Jillian Colrain, Gregg Espiritu Santo, Ngan Nguyen, Wayne Volkmuth, Norman Greenberg, William Robinson, Daniel Emerling, Charles G. Drake, Daniel P. Petrylak, Emmanuel S. Antonarakis, Adam S. Kibel, Nancy N. Chang, Tuyen Vu, Dwayne Campogan, Heather Haynes, James B. Trager, Nadeem A. Sheikh, David I. Quinn, Peter Kirk, Murali Addepalli, Thomas Chang, Ping Zhang, Marina Konakova, Katsunobu Hagihara, Steven Pai, Laurie VanderVeen, Palakshi Obalapur, Peiwen Kuo, Phi Quach, Lawrence Fong, Deborah H. Charych, Jonathan Zalevsky, John L. Langowski, Yolanda Kirksey, Ravi Nutakki, Shalini Kolarkar, Rhoneil Pena, Ute Hoch, Stephen K. Doberstein, John Cha, Zach Mallon, Myra Perez, Amanda McDaniel, Snjezana Anand, Darrin Uecker, Richard Nuccitelli, Eva Wieckowski, Ravikumar Muthuswamy, Roshni Ravindranathan, Ariana N. Renrick, Menaka Thounaojam, Portia Thomas, Samuel Pellom, Anil Shanker, Duafalia Dudimah, Alan Brooks, Yu-Lin Su, Tomasz Adamus, Qifang Zhang, Sergey Nechaev, Marcin Kortylewski, Spencer Wei, Clark Anderson, Chad Tang, Jonathan Schoenhals, Efrosini Tsouko, John Heymach, Patricia de Groot, Joe Chang, Kenneth R. Hess, Adi Diab, Padmanee Sharma, David Hong, James Welsh, Andrea J. Parsons, Jardin Leleux, Stephane Ascarateil, Marie Eve Koziol, Dina Bai, Peihong Dai, Weiyi Wang, Ning Yang, Stewart Shuman, Liang Deng, Patrick Dillon, Gina Petroni, David Brenin, Kim Bullock, Walter Olson, Mark E. Smolkin, Kelly Smith, Carmel Nail, Craig L. Slingluff, Meenu Sharma, Faisal Fa’ak, Louise Janssen, Hiep Khong, Zhilan Xiao, Yared Hailemichael, Manisha Singh, Christina Vianden, Willem W. Overwijk, Andrea Facciabene, Pierini Stefano, Fang Chongyung, Stavros Rafail, Michael Nielsen, Peter Vanderslice, Darren G. Woodside, Robert V. Market, Ronald J. Biediger, Upendra K. Marathi, Kevin Hollevoet, Nick Geukens, Paul Declerck, Nathalie Joly, Laura McIntosh, Eustache Paramithiotis, Magnus Rizell, Malin Sternby, Bengt Andersson, Alex Karlsson-Parra, Rui Kuai, Lukasz Ochyl, Anna Schwendeman, James Moon, Weiwen Deng, Thomas E. Hudson, Bill Hanson, Chris S. Rae, Joel Burrill, Justin Skoble, George Katibah, Michele deVries, Peter Lauer, Thomas W. Dubensky, Xin Chen, Li Zhou, Xiubao Ren, Charu Aggarwal, Drishty Mangrolia, Roger Cohen, Gregory Weinstein, Matthew Morrow, Joshua Bauml, Kim Kraynyak, Jean Boyer, Jian Yan, Jessica Lee, Laurent Humeau, Sandra Oyola, Susan Duff, David Weiner, Zane Yang, Mark Bagarazzi, Douglas G. McNeel, Jens Eickhoff, Robert Jeraj, Mary Jane Staab, Jane Straus, Brian Rekoske, Glenn Liu, Marit Melssen, William Grosh, Nikole Varhegyi, Nadejda Galeassi, Donna H. Deacon, Elizabeth Gaughan, Maurizio Ghisoli, Minal Barve, Robert Mennel, Gladice Wallraven, Luisa Manning, Neil Senzer, John Nemunaitis, Masahiro Ogasawara, Shuichi Ota, Kaitlin M. Peace, Diane F. Hale, Timothy J. Vreeland, Doreen O. Jackson, John S. Berry, Alfred F. Trappey, Garth S. Herbert, Guy T. Clifton, Mark O. Hardin, Anne Toms, Na Qiao, Jennifer Litton, George E. Peoples, Elizabeth A. Mittendorf, Lila Ghamsari, Emilio Flano, Judy Jacques, Biao Liu, Jonathan Havel, Vladimir Makarov, Timothy A. Chan, Jessica B. Flechtner, John Facciponte, Stefano Ugel, Francesco De Sanctis, George Coukos, Sébastien Paris, Agnes Pottier, Laurent Levy, Bo Lu, Federica Cappuccini, Emily Pollock, Richard Bryant, Freddie Hamdy, Adrian Hill, Irina Redchenko, Hussein Sultan, Takumi Kumai, Valentyna Fesenkova, Esteban Celis, Ingrid Fernando, Claudia Palena, Justin M. David, Elizabeth Gabitzsch, Frank Jones, James L. Gulley, Mireia Uribe Herranz, Hiroshi Wada, Atsushi Shimizu, Toshihiro Osada, Satoshi Fukaya, Eiji Sasaki, Milad Abolhalaj, David Askmyr, Kristina Lundberg, Ann-Sofie Albrekt, Lennart Greiff, Malin Lindstedt, Dallas B. Flies, Tomoe Higuchi, Wojciech Ornatowski, Jaryse Harris, Sarah F. Adams, Todd Aguilera, Marjan Rafat, Laura Castellini, Hussein Shehade, Mihalis Kariolis, Dadi Jang, Rie vonEbyen, Edward Graves, Lesley Ellies, Erinn Rankin, Albert Koong, Amato Giaccia, Reham Ajina, Shangzi Wang, Jill Smith, Mariaelena Pierobon, Sandra Jablonski, Emanuel Petricoin, Louis M. Weiner, Lorcan Sherry, John Waller, Mark Anderson, Alison Bigley, Chantale Bernatchez, Cara Haymaker, Harriet Kluger, Michael Tetzlaff, Natalie Jackson, Ivan Gergel, Mary Tagliaferri, Patrick Hwu, Mario Snzol, Michael Hurwitz, Theresa Barberi, Allison Martin, Rahul Suresh, David Barakat, Sarah Harris-Bookman, Charles Drake, Alan Friedman, Sara Berkey, Stephanie Downs-Canner, Robert P. Edwards, Tyler Curiel, Kunle Odunsi, Tullia C. Bruno, Brandon Moore, Olivia Squalls, Peggy Ebner, Katherine Waugh, John Mitchell, Wilbur Franklin, Daniel Merrick, Martin McCarter, Brent Palmer, Jeffrey Kern, Dario Vignali, Jill Slansky, Anissa S. H. Chan, Xiaohong Qiu, Kathryn Fraser, Adria Jonas, Nadine Ottoson, Keith Gordon, Takashi O. Kangas, Steven Leonardo, Kathleen Ertelt, Richard Walsh, Mark Uhlik, Jeremy Graff, Nandita Bose, Ravi Gupta, Nitin Mandloi, Kiran Paul, Ashwini Patil, Rekha Sathian, Aparna Mohan, Malini Manoharan, Amitabha Chaudhuri, Yu Chen, Jing Lin, Yun-bin Ye, Chun-wei Xu, Gang Chen, Zeng-qing Guo, Andrey Komarov, Alex Chenchik, Michael Makhanov, Costa Frangou, Yi Zheng, Carla Coltharp, Darryn Unfricht, Ryan Dilworth, Leticia Fridman, Linying Liu, Milind Rajopadhye, Peter Miller, Fernando Concha-Benavente, Julie Bauman, Sumita Trivedi, Raghvendra Srivastava, James Ohr, Dwight Heron, Uma Duvvuri, Seungwon Kim, Heather Torrey, Toshi Mera, Yoshiaki Okubo, Eva Vanamee, Rosemary Foster, Denise Faustman, Edward Stack, Daisuke Izaki, Kristen Beck, Dan Tong Jia, Paul Armenta, Ashley White-Stern, Douglas Marks, Bret Taback, Basil Horst, Laura Hix Glickman, David B. Kanne, Kelsey S. Gauthier, Anthony L. Desbien, Brian Francica, Justin L. Leong, Leonard Sung, Ken Metchette, Shailaja Kasibhatla, Anne Marie Pferdekamper, Lianxing Zheng, Charles Cho, Yan Feng, Jeffery M. McKenna, John Tallarico, Steven Bender, Chudi Ndubaku, Sarah M. McWhirter, Elena Gonzalez Gugel, Charles J. M. Bell, Adiel Munk, Luciana Muniz, Nina Bhardwaj, Fei Zhao, Kathy Evans, Christine Xiao, Alisha Holtzhausen, Brent A. Hanks, Nathalie Scholler, Catherine Yin, Pien Van der Meijs, Andrew M. Prantner, Cecile M. Krejsa, Leia Smith, Brian Johnson, Daniel Branstetter, Paul L. Stein, Juan C. Jaen, Joanne BL Tan, Ada Chen, Timothy Park, Jay P. Powers, Holly Sexton, Guifen Xu, Steve W. Young, Ulrike Schindler, Wentao Deng, David John Klinke, Hannah M. Komar, Gregory Serpa, Omar Elnaggar, Philip Hart, Carl Schmidt, Mary Dillhoff, Ming Jin, Michael C. Ostrowski, Madhuri Koti, Katrina Au, Nichole Peterson, Peter Truesdell, Gillian Reid-Schachter, Charles Graham, Andrew Craig, Julie-Ann Francis, Beatrix Kotlan, Timea Balatoni, Emil Farkas, Laszlo Toth, Mihaly Ujhelyi, Akos Savolt, Zoltan Doleschall, Szabolcs Horvath, Klara Eles, Judit Olasz, Orsolya Csuka, Miklos Kasler, Gabriella Liszkay, Eytan Barnea, Collin Blakely, Patrick Flynn, Reid Goodman, Raphael Bueno, David Sugarbaker, David Jablons, V. Courtney Broaddus, Brian West, Paul R. Kunk, Joseph M. Obeid, Kevin Winters, Patcharin Pramoonjago, Edward B. Stelow, Todd W. Bauer, Osama E. Rahma, Adam Lamble, Yoko Kosaka, Fei Huang, Kate A. Saser, Homer Adams, Christina E. Tognon, Ted Laderas, Shannon McWeeney, Marc Loriaux, Jeffery W. Tyner, Brian J. Druker, Evan F. Lind, Zhuqing Liu, Shanhong Lu, Lawrence P. Kane, Gulidanna Shayan, Julia Femel, Ryan Lane, Jamie Booth, Amanda W. Lund, Anthony Rodriguez, Victor H. Engelhard, Alessandra Metelli, Bill X. Wu, Caroline W. Fugle, Rachidi Saleh, Shaoli Sun, Jennifer Wu, Bei Liu, Zihai Li, Zachary S. Morris, Emily I. Guy, Clinton Heinze, Jasdeep Kler, Monica M. Gressett, Lauryn R. Werner, Stephen D. Gillies, Alan J. Korman, Hans Loibner, Jacquelyn A. Hank, Alexander L. Rakhmilevich, Paul M. Harari, Paul M. Sondel, Erica Huelsmann, Joseph Broucek, Dorothee Brech, Tobias Straub, Martin Irmler, Johannes Beckers, Florian Buettner, Elke Schaeffeler, Matthias Schwab, Elfriede Noessner, Alison Wolfreys, Andre Da Costa, John Silva, Andrea Crosby, Ludovicus Staelens, Graham Craggs, Annick Cauvin, Sean Mason, Alison M. Paterson, Andrew C. Lake, Caroline M. Armet, Rachel W. O’Connor, Jonathan A. Hill, Emmanuel Normant, Ammar Adam, Detlev M. Biniszkiewicz, Scott C. Chappel, Vito J. Palombella, Pamela M. Holland, Annette Becker, Manmohan R. Leleti, Eric Newcomb, Joanne B. L. Tan, Suthee Rapisuwon, Arash Radfar, Kellie Gardner, Geoffrey Gibney, Michael Atkins, Keith R. Rennier, Robert Crowder, Ping Wang, Russell K. Pachynski, Rosa M. Santana Carrero, Sarai Rivas, Figen Beceren-Braun, Scott Anthony, Kimberly S. Schluns, Deepali Sawant, Maria Chikina, Hiroshi Yano, Creg Workman, Elise Salerno, Ileana Mauldin, Donna Deacon, Sofia Shea, Joel Pinczewski, Thomas Gajewski, Stefani Spranger, Brendan Horton, Akiko Suzuki, Pamela Leland, Bharat H. Joshi, Raj K. Puri, Randy F. Sweis, Riyue Bao, Jason Luke, Marie-Nicole Theodoraki, Frances-Mary Mogundo, Haejung Won, Dayson Moreira, Chan Gao, Xingli Zhao, Priyanka Duttagupta, Jeremy Jones, Massimo D’Apuzzo, and Sumanta Pal

Subjects
0301 basic medicine, Pharmacology, Cancer Research, medicine.medical_specialty, business.industry, medicine.medical_treatment, Immunology, Cancer, Immunotherapy, medicine.disease, 3. Good health, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Oncology, 030220 oncology & carcinogenesis, Family medicine, Molecular Medicine, Immunology and Allergy, Medicine, business
Abstract

O1 IL-15 primes an mTOR-regulated gene-expression program to prolong anti-tumor capacity of human natural killer cells #### Andreas Lundqvist1, Vincent van Hoef1, Xiaonan Zhang1, Erik Wennerberg2, Julie Lorent1, Kristina Witt1, Laia Masvidal Sanz1, Shuo Liang1, Shannon Murray3, Ola Larsson1

Published
2016
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7. P1.04-07 Pemetrexed Enhances Anti-Tumor Efficacy of PD-L1 blockade by Promoting Intra-Tumor Immune Response via Tumor and T Cell-Intrinsic Mechanisms

Author

Gerald Hall, David Schaer, Nelusha Amaladas, Bonita D. Jones, Bo Tan, Frank C. Dorsey, Kenneth D. Roth, Thompson N. Doman, Gregory P. Donoho, Andrew Capen, Ruslan D. Novosiadly, Alexander Nikolayev, Manisha Brahmachary, Zhao Hai Lu, Andreas Sonyi, Michael Kalos, Carmine Carpenito, Darin Chin, Sandaruwan Geeganage, Catalina Meyer, Jason Manro, Erik R. Rasmussen, Yiwen Li, Krishna Chodavarapu, Shuang Luo, and Xiaodong Huang

Subjects
0301 basic medicine, Pulmonary and Respiratory Medicine, Antitumor activity, biology, business.industry, T cell, Blockade, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Immune system, medicine.anatomical_structure, Pemetrexed, Oncology, 030220 oncology & carcinogenesis, PD-L1, biology.protein, Cancer research, medicine, business, medicine.drug
Published
2018
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8. Abstract 4549: Pemetrexed enhances anti-tumor efficacy of PD1 pathway blockade by promoting intra tumor immune response via immunogenic tumor cell death and T cell intrinsic mechanisms

Author

Andreas Sonyi, Gregory P. Donoho, Jason Manro, Yanxia Li, Sandaruwan Geeganage, Catalina Meyer, David Schaer, Gerald Hall, Ruslan D. Novosiadly, Nelusha Amaladas, Michael Kalos, Carmine Carpenito, Andrew Capen, Zhao Hai Lu, Erik Rasmussen, Thompson N. Doman, Xiaodong Huang, and Shuang Luo

Subjects
0301 basic medicine, Cancer Research, business.industry, medicine.medical_treatment, T cell, CD137, Antigen presentation, CD28, Immunotherapy, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Immune system, Pemetrexed, medicine.anatomical_structure, Oncology, 030220 oncology & carcinogenesis, medicine, Cancer research, Immunogenic cell death, business, medicine.drug
Abstract

Background: Recently, pemetrexed and carboplatin in combination with PD–1 antibody (pembrolizumab) demonstrated markedly improved clinical outcome in NSCLC patients (KEYNOTE–021G trial) suggesting a positive interaction between pemetrexed–based chemotherapy and immunotherapy. However, the role of pemetrexed in modulating antitumor immune response is largely unknown. The objective of this study was to characterize the effects of pemetrexed on intra–tumor immune response in monotherapy and combination with carboplatin or PD–1 pathway blockade in preclinical models. Methods: Mice bearing syngeneic MC38 or Colon26 tumors were treated with pemetrexed with or without carboplatin or anti–mouse PD–L1 antibody (178G7). Immune cell subsets and immune–related changes in mouse tumor tissue and T cells were assessed by flow cytometry and gene expression analysis (Quantigene Plex and nanoString nCounter assays). Effects of pemetrexed on immunogenic cell death in tumor cells and mitochondrial respiration in T cells were evaluated by HMGB1 ELISA and Agilent Seahorse XF analysis, respectively. Results: In MC38 tumors, pemetrexed monotherapy demonstrated a trend towards an increased frequency of intratumoral leukocytes and total and cycling (Ki67+) T cells accompanied by immune–related gene expression changes indicative of enhanced antigen presentation, T cell infiltration and/or activation and down–modulation of the myeloid cell compartment. Immune gene expression signature induced by pemetrexed was largely unaffected by carboplatin. In both MC38 and Colon26 tumor cells, in vitro treatment with pemetrexed induced a robust release of HMGB1 indicative of immunogenic cell death. Proliferation of primary human T cells stimulated with CD3/CD28 was inhibited by pemetrexed in a dose–dependent manner. At clinically relevant concentrations pemetrexed also enhanced T cell activation phenotype exemplified by an increased frequency of CD137+, GITR+ and PD–L1+ T cells as well as upregulation of multiple interferon gamma–induced genes, and increased mitochondrial respiration. In both MC38 and Colon26 models, treatment with pemetrexed and 178G7 demonstrated a combination benefit compared to either monotherapy, and nCounter profiling of Colon26 tumors followed by Ingenuity Pathway Analysis revealed that improved antigen presentation, enhanced T cell and cytokine signaling and an engagement of CD4+ T cell–mediated immunity might underlie this combination effect. Conclusions: Pemetrexed promotes intra–tumor T cell–mediated immune response through immunogenic tumor cell death and increased activation and metabolic fitness of T cells leading to an enhanced anti–tumor efficacy in combination with PD–L1 antibody. Citation Format: Ruslan Novosiadly, David Schaer, Nelusha Amaladas, Erik Rasmussen, Zhao Hai Lu, Andreas Sonyi, Carmine Carpenito, Yanxia Li, Shuang Luo, Andrew Capen, Catalina Meyer, Xiaodong Huang, Jason Manro, Gregory Donoho, Thompson Doman, Gerald Hall, Sandaruwan Geeganage, Michael Kalos. Pemetrexed enhances anti-tumor efficacy of PD1 pathway blockade by promoting intra tumor immune response via immunogenic tumor cell death and T cell intrinsic mechanisms [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 4549.

Published
2018
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9. P3.07-006 Pemetrexed Exerts Intratumor Immunomodulatory Effects and Enhances Efficacy of Immune Checkpoint Blockade in MC38 Syngeneic Mouse Tumor Model

Author

Shuang Luo, Sandaruwan Geeganage, Nelusha Amaladas, Gregory P. Donoho, Zhao Hai Lu, Ruslan D. Novosiadly, Jason Manro, Michael Kalos, Andrew Capen, Catalina Meyer, Thompson N. Doman, David Schaer, Gerald Hall, and T. Smeal

Subjects
0301 basic medicine, Pulmonary and Respiratory Medicine, business.industry, Pharmacology, Immune checkpoint, Blockade, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Pemetrexed, Oncology, 030220 oncology & carcinogenesis, Medicine, Syngeneic mouse, business, medicine.drug
Published
2017
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10. Abstract A091: Targeting the TGFb pathway with galunisertib, a TGFbRI SMI, promotes antitumor immunity leading to durable, complete responses, as monotherapy and in combination with checkpoint inhibition

Author

Karim A. Benhadji, Michael Kalos, Mary Murphy, Yanxia Li, Yiwen Li, Ivan Inigo, Gerald Hall, Susan C. Guba, David Surguladze, David Schaer, Kyla Driscoll, Stephen Castaneda, Xiaohong Xu, and Desiree Nugent

Subjects
Cancer Research, Angiogenesis, business.industry, medicine.medical_treatment, Immunology, Cancer, medicine.disease, 03 medical and health sciences, 0302 clinical medicine, Immune system, Cancer immunotherapy, Antigen, 030220 oncology & carcinogenesis, Glioma, medicine, Cancer research, Galunisertib, business, CD8
Abstract

TGFb signaling is known to play a central role in tumor biology, via inducing and/or enhancing tumor cell growth and differentiation, modulating the extracellular matrix in the stroma, inducing epithelial to mesenchymal transition, modulating angiogenesis, and inhibiting immune surveillance and anti-tumor immunity. Galunisertib is a pharmacological inhibitor of the TGFb pathway which acts by inhibiting signaling though TGFbRI. Galunisertib is currently being evaluated clinically in several Phase I and II studies; as a monotherapy, galunisertib has shown antitumor activity against a variety of tumors, including durable and long-term responses in patients with glioma. To explore the impact of Galunisertib monotherapy on anti-tumor T cell immunity, we utilized murine tumor models. Treatment of mice with well-established 4T1-LP (poorly immunogenic 4T1 breast tumor engineered to express luciferase) implanted in the mammary fat pad resulted in strong dose-dependent anti-tumor activity with nearly 100% inhibition of tumor growth across doses during the dosing period, with complete tumor responses upon cessation of treatment in ~50% of animals at the highest dose tested; depletion studies demonstrated that regression of 4T1-LP was dependent on the presence of CD8+ T cells. Rechallenge of treated, tumor free mice resulted in complete rejection of 4T1-LP tumor cells but no rejection of EMT6-LM2 tumor cells, demonstrating the establishment of a durable response and immunological memory. Treatment of mice bearing established parental 4T1 tumors in the mammary fat pad resulted in no significant inhibition of tumor growth, indicating that the presence of a foreign antigen (i.e. LP), potentially enhanced the ability to regress the 4T1-LP derivative. Animals that rejected the immunogenic 4T1-LP tumors were able to also reject 4T1 parental cells upon rechallenge, suggesting the development of a secondary immune response via antigen spreading as a consequence of effective tumor targeting. In the CT26 murine colon carcinoma model, treatment of established tumors with galunisertib or anti-PD-L1 as monotherapies resulted in tumor growth inhibition compared to control of 75% and 86%, respectively (T/C values of 25% and 14%); complete responders were observed in about 20% of treated animals in both monotherapy groups. Combination of galunisertib with anti-PD-L1 resulted in an enhanced tumor growth inhibition of 98% (T/C value of ~2%), and a complete response rate of ~50%, suggesting at least additive activity with potential for synergy when targeting the TGFb and PD-1 pathways. Taken together, these data demonstrate the potential for galunisertib treatment to enhance the development of anti- tumor T cell immunity, which can be enhanced by combinations with immune check point inhibitors. Citation Format: David Schaer, Yanxia Li, Stephen Castaneda, Ivan Inigo, David Surguladze, Xiaohong Xu, Desiree Nugent, Mary Murphy, Gerald Hall, Karim Benhadji, Susan Guba, Yiwen Li, Michael Kalos, Kyla Driscoll. Targeting the TGFb pathway with galunisertib, a TGFbRI SMI, promotes antitumor immunity leading to durable, complete responses, as monotherapy and in combination with checkpoint inhibition. [abstract]. In: Proceedings of the CRI-CIMT-EATI-AACR Inaugural International Cancer Immunotherapy Conference: Translating Science into Survival; September 16-19, 2015; New York, NY. Philadelphia (PA): AACR; Cancer Immunol Res 2016;4(1 Suppl):Abstract nr A091.

Published
2016
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