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30 results on '"Khalil, Elie"'

4. Palladin Regulates Invadopodia Formation in Glioblastoma

Author

Abi Khalil, Elie and Abi Khalil, Elie

Abstract

Glioblastoma multiforme (GBM), also referred to as glioblastoma is a rapidly dividing glioma that develops from astrocytes and oligodendrocytes (glial cells that nourish the brain). GBM can also be classified as a grade IV astrocytoma, which represents the most invasive, rapidly growing, and metastatic type of glial tumors. Our lab has been primarily interested in identifying and studying pathways relevant to the progression of this disease through which we recently determined that hypoxia and EGF stimulation contribute to VEGF expression via the differential regulation of the PI3K/Rho-GTPase and MAPK signaling pathways. Palladin is a relatively novel actin-associated phosphoprotein that has been reported to be implicated in a variety of cancers such as pancreatic adenocarcinoma and ductal carcinoma of the breast. It has also been reportedly involved in the development of invadopodia, dorsal ruffles, podosomes, focal adhesions, and has been shown to be involved in regulating the expression of the Rho-GTPases, Cdc42 and Rac1. More recently, palladin has been shown to alter actin dynamics in podocytes as well as replace the Arp2/3 complex during Listeria infections, contributing to the assembly of actin-based structures. In this study, we used a palladin knockdown model in order to assess invadopodia formation in glioblastoma cell line U87. The results show an increase in invadopodia as seen by TKS4 and TKS5 staining as well as a decrease in Cdc42 activity following palladin knockdown. We have also been able to demonstrate a novel role for palladin in the expression of Rac1. This study serves to characterize palladin within the context of invadopodia formation and as such we have been able to identify potential crosstalk between palladin and Rho GTPases such as Cdc42 and Rac1.

Published
2021

5. The Role of Rho GTPases in VEGF Signaling in Cancer Cells

Author

El Baba, Nada, Farran, Mohammad, Khalil, Elie Abi, Jaafar, Leila, Fakhoury, Isabelle, and El-Sibai, Mirvat

Subjects
Article Subject
Abstract

Vascular endothelial growth factors (VEGFs) consist of five molecules (VEGFA through D as well as placental growth factor) which are crucial for regulating key cellular and tissue functions. The role of VEGF and its intracellular signaling and downstream molecular pathways have been thoroughly studied. Activation of VEGF signal transduction can be initiated by the molecules’ binding to two classes of transmembrane receptors: (1) the VEGF tyrosine kinase receptors (VEGF receptors 1 through 3) and (2) the neuropilins (NRP1 and 2). The involvement of Rho GTPases in modulating VEGFA signaling in both cancer cells and endothelial cells has also been well established. Additionally, different isoforms of Rho GTPases, namely, RhoA, RhoC, and RhoG, have been shown to regulate VEGF expression as well as blood vessel formation. This review article will explore how Rho GTPases modulate VEGF signaling and the consequences of such interaction on cancer progression.

Published
2020
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8. Exploring environmental variables based on ecotopes derived by remote sensing

Author

Radoux, Julien, François, Brieuc, Maet, Thomas De, Vandersteen, Quentin, Khalil, Elie, and Defourny, Pierre

Subjects
WebGIS, ecotopes, GEOBIA, integrated data
Abstract

LifewatchWB contributes to the European Research Infrastructure Consortium for biodiversity and ecosystem research (Lifewatch) by providing online tools for the visualization of environmental variables. It consists in two Web portals (www.uclouvain.be/lifewatch) providing data about i) weekly anomalies of the dynamic land cover properties (snow cover and vegetation greenness) and ii) high resolution characterization of ecotopes. The topic of this abstract is the ecotope visualization interface. Ecotopes are the smallest ecologically functional units. They can be mapped by intersecting a large number of thematic layers (soil type, land cover, topographic types). However, this creates a lot of polygons with an exponentially increasing number of categorical values combinations. The visualization and analysis of those polygons is therefore difficult. On the other hand, the LifewatchWB ecotopes consist in irregular polygons derived from geographic object-based image analysis (grouping adjacent pixels of similar properties to create a partition of irregular polygons). Each polygon is then characterized using a set of continuous fields: quantitative variables (climate, elevation, slope, artificial light, contextual variables…) are either interpolated or averaged at the level of the ecotopes depending on the resolution of the input layers; categorical variables (soil types, land cover types…) are provided as proportions inside the ecotopes. The ecotope database is an open data layer currently available for the Walloon Region (Belgium). It consists in 1.2 million polygons with more than 80 quantitative fields. Those fields cannot be visualized together, therefore several visualization tools are provided on the interface: 1) each variable can be visualized individually in grey level, 2) any set of three variables can be visualized as a color composite and 3) queries based on potentially all variables can provide binary outputs. In addition, an online tool is available to extract the values of the ecotope characteristics in a set of point locations for further analysis in other softwares. With its polygon-based structure that is homogeneous with respect to the land cover and the topography, ecotopes provides meaningful landscape units with a large set of precomputed variables. Those variables are easy to visualize in a WebGIS and have been combined with species observations to run habitat and biotope models.

Published
2018
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13. GPVI and GPIb alpha Mediate Staphylococcal Superantigen-Like Protein 5 (SSL5) Induced Platelet Activation and Direct toward Glycans as Potential Inhibitors

Author

Hu, Houyuan, Armstrong, Paul C.J., Khalil, Elie, Chen, Yung-Chih, Straub, Andreas, Li, Min, Soosairajah, Juliana, Hagemeyer, Christoph Eugen, Bassler, Nicole, Huang, Dexing, Ahrens, Ingo, Krippner, Guy, Gardiner, Elizabeth, Peter, Karlheinz, Hu, Houyuan, Armstrong, Paul C.J., Khalil, Elie, Chen, Yung-Chih, Straub, Andreas, Li, Min, Soosairajah, Juliana, Hagemeyer, Christoph Eugen, Bassler, Nicole, Huang, Dexing, Ahrens, Ingo, Krippner, Guy, Gardiner, Elizabeth, and Peter, Karlheinz

Published
2011

15. New Management Strategy for Fluid Resuscitation

Author

Mitchell, Katrina B., primary, Khalil, Elie, additional, Brennan, Ann, additional, Shao, Huibo, additional, Rabbitts, Angela, additional, Leahy, Nicole E., additional, Yurt, Roger W., additional, and Gallagher, James J., additional

Published
2013
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18. GPVI and GPIbα Mediate Staphylococcal Superantigen-Like Protein 5 (SSL5) Induced Platelet Activation and Direct toward Glycans as Potential Inhibitors

Author

Hu, Houyuan, primary, Armstrong, Paul C. J., additional, Khalil, Elie, additional, Chen, Yung-Chih, additional, Straub, Andreas, additional, Li, Min, additional, Soosairajah, Juliana, additional, Hagemeyer, Christoph E., additional, Bassler, Nicole, additional, Huang, Dexing, additional, Ahrens, Ingo, additional, Krippner, Guy, additional, Gardiner, Elizabeth, additional, and Peter, Karlheinz, additional

Published
2011
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22. (2-Amino-phenyl)-amides of ω-substituted alkanoic acids as new histone deacetylase inhibitors

Author

Vaisburg, Arkadii, primary, Bernstein, Naomy, additional, Frechette, Sylvie, additional, Allan, Martin, additional, Abou-Khalil, Elie, additional, Leit, Silvana, additional, Moradei, Oscar, additional, Bouchain, Giliane, additional, Wang, James, additional, Woo, Soon Hyung, additional, Fournel, Marielle, additional, Yan, Pu T., additional, Trachy-Bourget, Marie-Claude, additional, Kalita, Ann, additional, Beaulieu, Carole, additional, Li, Zuomei, additional, MacLeod, A.Robert, additional, Besterman, Jeffrey M., additional, and Delorme, Daniel, additional

Published
2004
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23. Development of Potential Antitumor Agents. Synthesis and Biological Evaluation of a New Set of Sulfonamide Derivatives as Histone Deacetylase Inhibitors

Author

Bouchain, Giliane, primary, Leit, Silvana, additional, Frechette, Sylvie, additional, Khalil, Elie Abou, additional, Lavoie, Rico, additional, Moradei, Oscar, additional, Woo, Soon Hyung, additional, Fournel, Marielle, additional, Yan, Pu T., additional, Kalita, Ann, additional, Trachy-Bourget, Marie-Claude, additional, Beaulieu, Carole, additional, Li, Zuomei, additional, Robert, Marie-France, additional, MacLeod, A. Robert, additional, Besterman, Jeffrey M., additional, and Delorme, Daniel, additional

Published
2003
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24. Structurally Simple Trichostatin A-Like Straight Chain Hydroxamates as Potent Histone Deacetylase Inhibitors

Author

Woo, Soon Hyung, primary, Frechette, Sylvie, additional, Khalil, Elie Abou, additional, Bouchain, Giliane, additional, Vaisburg, Arkadii, additional, Bernstein, Naomy, additional, Moradei, Oscar, additional, Leit, Silvana, additional, Allan, Martin, additional, Fournel, Marielle, additional, Trachy-Bourget, Marie-Claude, additional, Li, Zuomei, additional, Besterman, Jeffrey M., additional, and Delorme, Daniel, additional

Published
2002
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25. Design and synthesis of a novel class of histone deacetylase inhibitors

Author

Lavoie, Rico, primary, Bouchain, Giliane, additional, Frechette, Sylvie, additional, Woo, Soon Hyung, additional, Khalil, Elie Abou, additional, Leit, Silvana, additional, Fournel, Marielle, additional, Yan, Pu T., additional, Trachy-Bourget, Marie-Claude, additional, Beaulieu, Carole, additional, Li, Zuomei, additional, Besterman, Jeffrey, additional, and Delorme, Daniel, additional

Published
2001
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26. Cancer immunotherapy: A comprehensive appraisal of its modes of application.

Author

Hoteit, Mira, Oneissi, Zeina, Reda, Ranim, Wakim, Fadi, Zaidan, Amar, Farran, Mohammad, Abi-Khalil, Elie, and El-Sibai, Mirvat

Subjects
CANCER chemotherapy, IMMUNOTHERAPY, IMMUNOLOGICAL tolerance, IMMUNE response, RADIOTHERAPY
Abstract

Conventional cancer treatments such as chemotherapy and radiation therapy have reached their therapeutic potential, leaving a gap for developing more effective cancer therapeutics. Cancer cells evade the immune system using various mechanisms of immune tolerance, underlying the potential impact of immunotherapy in the treatment of cancer. Immunotherapy includes several approaches such as activating the immune system in a cytokine-dependent manner, manipulating the feedback mechanisms involved in the immune response, enhancing the immune response via lymphocyte expansion and using cancer vaccines to elicit long-lasting, robust responses. These techniques can be used as monotherapies or combination therapies. The present review describes the immune-based mechanisms involved in tumor cell proliferation and maintenance and the rationale underlying various treatment methods. In addition, the present review provides insight into the potential of immunotherapy used alone or in combination with various types of therapeutics. [ABSTRACT FROM AUTHOR]

Published
2021
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27. Infected pancreatic necrosis: outcomes and clinical predictors of mortality. A post hoc analysis of the MANCTRA-1 international study

Author

Podda, Mauro, Pellino, Gianluca, Di Saverio, Salomone, Coccolini, Federico, Pacella, Daniela, Cioffi, Stefano Piero Bernardo, Virdis, Francesco, Balla, Andrea, Ielpo, Benedetto, Pata, Francesco, Poillucci, Gaetano, Ortenzi, Monica, Damaskos, Dimitrios, De Simone, Belinda, Sartelli, Massimo, Leppaniemi, Ari, Jayant, Kumar, Catena, Fausto, Giuliani, Antonio, Di Martino, Marcello, Pisanu, Adolfo, Chiara Gerardi, Stavros Gourgiotis, Cristiana Riboni, Alessio Giordano, Luca Ferrario, Vanni Agnoletti, Yoram Kruger, Damian Mole, Ferdinando Agresta, Mikel Prieto Calvo, Michael Wilson, Fiammetta Soggiu, Alaa Hamdan, Carlos Augusto Gomes, Gustavo Fraga, Argyrios Ioannidis, Zaza Demetrashvili, Saaz Sahani, Lovenish Bains, Almu'atasim Khamees, Hazim Ababneh, Osama Aljaiuossi, Samuel Pimentel, Ikhwan Sani Mohamad, Ahmad Ramzi Yusoff, Narcis Octavian Zarnescu, Valentin Calu, Andrey Litvin, Dusan Lesko, Ahmed Elmehrath, Mohamedraed Elshami, Martin de Santibañes, Justin Gundara, Kamel Alawadhi, Rashid Lui, Alexander Julianov, Sergio Ralon, Ibrahim-Umar Garzali, Gustavo M Machain, Ibabe Villalabeitia, Darwin Artidoro Quispe-Cruz, Abigail Cheska C Orantia, Maciej Walędziak, Tiago Correia de Sá, Syed Muhammad Ali, Bojan Kovacevic, Colin Noel, Haidar M Abdalah, Ali Kchaou, Arda Isik, Luca Ansaloni, Walter Biffl, Mario Guerrieri, Alberto Sartori, Manuel Abradelo, Giuseppe Nigri, Nicola Di Lorenzo, Andrea Mingoli, Massimo Chiarugi, Juliana Di Menno Stavron, Oscar Mazza, José Ignacio Valenzuela, Diana Alejandra Pantoja Pachajoa, Fernando Andrés Alvarez, Julian Ezequiel Liaño, Joan Tefay, Abdulrahman Alshaikh, Layla Hasan, Felipe Couto Gomes, Thiago R A Calderan, Elcio S Hirano, Dragomir Dardanov, Azize Saroglu, Boyko Atanasov, Nikolay Belev, Nikola Kovachev, Shannon Melissa Chan, Hon-Ting Lok, Diego Salcedo, Diana Robayo, María Alejandra Triviño, Jan Manak, Jorann de Araujo, Ananya Sethi, Ahmed Awad, Merihan Elbadawy, Ahmed Farid, Asmaa Hanafy, Ahmed Nafea, Ghozy Sherief, Abbas Salah Alzhraa, Wafaa Abdelsalam, Sameh Emile, Ahmed Elfallal, Hossam Elfeki, Hosam Elghadban, Ashraf Shoma, Mohamed Shetiwy, Mohamed Elbahnasawy, Salem Mohamed, Emad Fawzi Hamed, Usama Ahmed Khalil, Elie Chouillard, Andrew Gumbs, Andrea Police, Andrea Mabilia, Kakhi Khutsishvili, Anano Tvaladze, Orestis Ioannidis, Elissavet Anestiadou, Lydia Loutzidou, Konstantinis Konstantinidis, Sofia Konstantinidou, Dimitrios Manatakis, Vasileios Acheimastos, Nikolaos Tasis, Nikolaos Michalopoulos, Panagiotis Kokoropoulos, Maria Papadoliopoulou, Maria Sotiropoulou, Stylianos Kapiris, Panagiotis Metaxas, Ioannis Tsouknidas, Despoina Kefili, George Petrakis, Eirini Synekidou, Konstantinos Dakis, Eirini Alexandridou, Aristeidis Papadopoulos, Christos Chouliaras, Odysseas Mouzakis, Francesk Mulita, Ioannis Maroulis, Michail Vailas, Tania Triantafyllou, Dimitrios Theodorou, Eftychios Lostoridis, Eleni-Aikaterini Nagorni, Paraskevi Tourountzi, Efstratia Baili, Alexandros Charalabopoulos, Theodore Liakakos, Dimitrios Schizas, Alexandros Kozadinos, Athanasios Syllaios, Nikolaos Machairas, Stylianos Kykalos, Paraskevas Stamopoulos, Spiros Delis, Christos Farazi-Chongouki, Evangelos Kalaitzakis, Miltiadis Giannarakis, Konstantinos Lasithiotakis, Giorgia Petra, Amit Gupta, Noushif Medappil, Vijayanand Muthukrishnan, Jubin Kamar, Pawan Lal, Rajendra Agarwal, Matteo Magnoli, Paolo Aonzo, Alberto Serventi, Pierpaolo Di Lascio, Margherita Pinto, Carlo Bergamini, Andrea Bottari, Laura Fortuna, Jacopo Martellucci, Atea Cicako, Claudio Miglietta, Mario Morino, Daniele Delogu, Andrea Picchetto, Marco Assenza, Giancarlo D'Ambrosio, Giulio Argenio, Mariano Fortunato Armellino, Giovanna Ioia, Savino Occhionorelli, Dario Andreotti, Lacavalla Domenico, Davide Luppi, Massimiliano Casadei, Luca Di Donato, Farshad Manoochehri, Tiziana Rita Lucia Marchese, William Sergi, Roberto Manca, Raimondo Murgia, Enrico Piras, Lorenzo Conti, Simone Gianazza, Andrea Rizzi, Edoardo Segalini, Marco Monti, Elena Iiritano, Nicolò Maria Mariani, Enrico De Nicola, Giovanna Scifo, Giusto Pignata, Jacopo Andreuccetti, Francesco Fleres, Guglielmo Clarizia, Alessandro Spolini, Alan Biloslavo, Paola Germani, Manuela Mastronardi, Selene Bogoni, Silvia Palmisano, Nicolo' De Manzini, Marco Vito Marino, Gennaro Martines, Giuseppe Trigiante, Elpiniki Lagouvardou, Gabriele Anania, Cristina Bombardini, Dario Oppici, Tiziana Pilia, Valentina Murzi, Emanuela Gessa, Umberto Bracale, Maria Michela Di Nuzzo, Roberto Peltrini, Francesco Salvetti, Jacopo Viganò, Gabriele Sganga, Valentina Bianchi, Pietro Fransvea, Tommaso Fontana, Giuliano Sarro, Vincenza Paola Dinuzzi, Luca Scaravilli, Mario Virgilio Papa, Elio Jovine, Giulia Ciabatti, Laura Mastrangelo, Matteo Rottoli, Claudio Ricci, Iris Shari Russo, Alberto Aiolfi, Davide Bona, Francesca Lombardo, Pasquale Cianci, Mariagrazia Sederino, Roberto Bini, Osvaldo Chiara, Stefano Cioffi, Stefano Cantafio, Guido Coretti, Edelweiss Licitra, Grazia Savino, Sergio Grimaldi, Raffaele Porfidia, Elisabetta Moggia, Mauro Garino, Chiara Marafante, Antonio Pesce, Nicolò Fabbri, Carlo Vittorio Feo, Ester Marra, Marina Troian, Davide Drigo, Carlo Nagliati, Andrea Muratore, Riccardo Danna, Alessandra Murgese, Michele Crespi, Claudio Guerci, Alice Frontali, Luca Ferrari, Francesco Favi, Erika Picariello, Alessia Rampini, Fabrizio D'Acapito, Giorgio Ercolani, Leonardo Solaini, Francesco Palmieri, Matteo Calì, Francesco Ferrara, Irnerio Angelo Muttillo, Edoardo Maria Muttillo, Biagio Picardi, Raffaele Galleano, Ali Badran, Omar Ghazouani, Maurizio Cervellera, Gaetano Campanella, Gennaro Papa, Annamaria Di Bella, Gennaro Perrone, Gabriele Luciano Petracca, Concetta Prioriello, Mario Giuffrida, Federico Cozzani, Matteo Rossini, Marco Inama, Giovanni Butturini, Gianluigi Moretto, Luca Morelli, Giulio Candio, Simone Guadagni, Enrico Cicuttin, Camilla Cremonini, Dario Tartaglia, Valerio Genovese, Nicola Cillara, Alessandro Cannavera, Antonello Deserra, Arcangelo Picciariello, Vincenzo Papagni, Leonardo Vincenti, Giulia Bagaglini, Giuseppe Sica, Pierfrancesco Lapolla, Gioia Brachini, Dario Bono, Antonella Nicotera, Marcello Zago, Fabrizio Sammartano, Laura Benuzzi, Marco Stella, Stefano Rossi, Alessandra Cerioli, Caterina Puccioni, Stefano Olmi, Carolina Rubicondo, Matteo Uccelli, Anna Guida, Pasquale Lepiane, Diego Sasia, Giorgio Giraudo, Sara Salomone, Elena Belloni, Alessandra Cossa, Francesco Lancellotti, Roberto Caronna, Piero Chirletti, Paolina Saullo, Raffaele Troiano, Felice Mucilli, Mirko Barone, Massimo Ippoliti, Michele Grande, Bruno Sensi, Leandro Siragusa, Andrea Santini, Isidoro Di Carlo, Massimiliano Veroux, Rossella Gioco, Gastone Veroux, Giuseppe Currò, Michele Ammendola, Iman Komaei, Giuseppe Navarra, Valeria Tonini, Lodovico Sartarelli, Marco Ceresoli, Stefano Perrone, Linda Roccamatisi, Paolo Millo, Riccardo Brachet Contul, Elisa Ponte, Matteo Zuin, Giuseppe Portale, Alice Sabrina Tonello, Geri Fratini, Matteo Bianchini, Bruno Perotti, Emanuele Doria, Elia Giuseppe Lunghi, Diego Visconti, Khayry Al-Shami, Sajeda Awadi, Mohammad Musallam Khalil Buwaitel, Mo'taz Fawzat Naief Naffa', Ahmad Samhouri, Hatem Sawalha, Mohd Firdaus Che Ani, Ida Nadiah Ahmed Fathil, Jih Huei, Jose-Luis Beristain-Hernandez, Alejandro Garcia-Meza, Rafael Sepulveda-Rdriguez, Edgard Efren Lozada Hernández, Camilo Levi Acuña Pinzón, Jefferson Nieves Condoy, Francisco C Becerra García, Mohammad Sadik, Bushra Kadir, Jalpa Devi, Nandlal Seerani, Zainab, Mohammad Sohail-Asghar, Ameer Afzal, Ali Akbar, Helmut Segovia Lohse, Herald Segovia Lohse, Zamiara Solange Leon Cabrera, Gaby Susana Yamamoto Seto, José Ríos Chiuyari, Jorge Ordemar, Martha Rodríguez, Abigail Cheska C Orantia-Carlos, Margie Antionette Quitoy, Andrzej Kwiatkowski, Maciej Mawlichanów, Mónica Rocha, Carlos Soares, Alexandru Rares Stoian, Andreea Diana Draghici, Valentin Titus Grigorean, Raluca Bievel Radulescu, Radu Virgil Costea, Eugenia Claudia Zarnescu, Mikhail Kurtenkov, George Gendrikson, Volovich Alla-Angelina, Tsurbanova Arina, Ayrat Kaldarov, Mahir Gachabayov, Abakar Abdullaev, Milica Milentijevic, Milovan Karamarkovic, Arpád Panyko, Jozef Radonak, Marek Soltes, Laura Álvarez Morán, Haydée Calvo García, Pilar Suárez Vega, Sergio Estevez, Fabio Ausania, Jordi Farguell, Carolina González-Abós, Santiago Sánchez-Cabús, Belén Martín, Víctor Molina, Luis Oms, Lucas Ilzarbe, Eva Pont Feijóo, Elena Sofia Perra, Noel Rojas-Bonet, Rafael Penalba-Palmí, Susana Pérez-Bru, Jaume Tur-Martínez, Andrea Álvarez-Torrado, Marta Domingo-Gonzalez, Javier Tejedor-Tejada, Yaiza García Del Alamo, Fernando Mendoza-Moreno, Francisca García-Moreno-Nisa, Belén Matías-García, Manuel Durán, Rafael Calleja-Lozano, José Manuel Perez de Villar, Luis Sánchez-Guillén, Iban Caravaca, Daniel Triguero-Cánovas, Antonio Carlos Maya Aparicio, Blas Durán Meléndez, Andrea Masiá Palacios, Aitor Landaluce-Olavarria, Mario De Francisco, Begoña Estraviz-Mateos, Felipe Alconchel, Tatiana Nicolás-López, Pablo Ramírez, Virginia Duran Muñoz-Cruzado, Felipe Parej Ciuró, Eduardo Perea Del Pozo, Sergio Olivares Pizarro, Vicente Herrera Cabrera, Jose Muros Bayo, Hytham K S Hamid, Raffaello Roesel, Alessandra Cristaudi, Kinan Abbas, Iyad Ali, Ahmed Tlili, Hüseyin Bayhan, Mehmet Akif Türkoğlu, Mustafa Yener Uzunoglu, Ibrahim Fethi Azamat, Nail Omarov, Derya Salim Uymaz, Fatih Altintoprak, Emrah Akin, Necattin First, Koray Das, Nazmi Ozer, Ahmet Seker, Yasin Kara, Mehmet Abdussamet Bozkurt, Ali Kocataş, Semra Demirli Atici, Murat Akalin, Bulent Calik, Elif Colak, Yuksel Altinel, Serhat Meric, Yunus Emre Aktimur, Victoria Hudson, Jean-Luc Duval, Mansoor Khan, Ahmed Saad, Mandeep Kaur, Alison Bradley, Katherine Fox, Ivan Tomasi, Daniel Beasley, Alekhya Kotta Prasanti, Pinky Kotecha, Husam Ebied, Michaela Paul, Hemant Sheth, Ioannis Gerogiannis, Mohannad Gaber, Zara Sheikh, Shatadru Seth, Maria Kunitsyna, Cosimo Alex Leo, Vittoria Bellato, Noman Zafar, Amr Elserafy, Giles Bond-Smith, Giovanni Tebala, Pawan Mathur, Izza Abid, Nnaemeka Chidumije, Pardip Sandhar, Syed Osama Zohaib Ullah, Tamara Lezama, Muhammad Hassan Anwaar, Conor Magee, Salma Ahmed, Brooke Davies, Jeyakumar Apollos, Kieran McCormack, Hasham Choudhary, Triantafyllos Doulias, Tamsin Morrison, Anna Palepa, Fernando Bonilla Cal, Lianet Sánchez, Fabiana Domínguez, Ibrahim Al-Raimi, Haneen Alshargabi, Abdullah Meead, Serge Chooklin, Serhii Chuklin, Andriy Bilyak, Institut Català de la Salut, [Podda M] Emergency Surgery Unit, Department of Surgical Science, Policlinico Universitario 'D. Casula', Azienda Ospedaliero-Universitaria di Cagliari, University of Cagliari, Cagliari, Italy. [Pellino G] Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania 'Luigi Vanvitelli', Naples, Italy. Unitat de Cirurgia de Còlon i Recte, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Di Saverio S] Department of Surgery, 'Madonna del Soccorso' Hospital, San Benedetto del Tronto, Italy. [Coccolini F] General, Emergency and Trauma Surgery Unit, Pisa University Hospital, Pisa, Italy. [Pacella D] Department of Public Health, University of Naples Federico II, Naples, Italy. [Cioffi SPB] Trauma and Acute Care Surgery Unit, 'Niguarda Ca Granda' Hospital, Milan, Italy, Vall d'Hebron Barcelona Hospital Campus, Podda, Mauro, Pellino, Gianluca, Di Saverio, Salomone, Coccolini, Federico, Pacella, Daniela, Cioffi, Stefano Piero Bernardo, Virdis, Francesco, Balla, Andrea, Ielpo, Benedetto, Pata, Francesco, Poillucci, Gaetano, Ortenzi, Monica, Damaskos, Dimitrio, De Simone, Belinda, Sartelli, Massimo, Leppaniemi, Ari, Jayant, Kumar, Catena, Fausto, Giuliani, Antonio, Di Martino, Marcello, Pisanu, Adolfo, Chiara Gerardi, Stavros Gourgiotis, Cristiana Riboni, Alessio Giordano, Luca Ferrario, Vanni Agnoletti, Yoram Kruger, Damian Mole, Ferdinando Agresta, Mikel Prieto Calvo, Michael Wilson, Fiammetta Soggiu, Alaa Hamdan, Carlos Augusto Gomes, Gustavo Fraga, Argyrios Ioannidis, Zaza Demetrashvili, Saaz Sahani, Lovenish Bains, Almu'atasim Khamees, Hazim Ababneh, Osama Aljaiuossi, Samuel Pimentel, Ikhwan Sani Mohamad, Ahmad Ramzi Yusoff, Narcis Octavian Zarnescu, Valentin Calu, Andrey Litvin, Dusan Lesko, Ahmed Elmehrath, Mohamedraed Elshami, Martin de Santibañes, Justin Gundara, Kamel Alawadhi, Rashid Lui, Alexander Julianov, Sergio Ralon, Ibrahim-Umar Garzali, Gustavo M Machain, Ibabe Villalabeitia, Darwin Artidoro Quispe-Cruz, Abigail Cheska C Orantia, Maciej Walędziak, Tiago Correia de Sá, Syed Muhammad Ali, Bojan Kovacevic, Colin Noel, Haidar M Abdalah, Ali Kchaou, Arda Isik, Luca Ansaloni, Walter Biffl, Mario Guerrieri, Alberto Sartori, Manuel Abradelo, Giuseppe Nigri, Nicola Di Lorenzo, Andrea Mingoli, Massimo Chiarugi, Juliana Di Menno Stavron, Oscar Mazza, José Ignacio Valenzuela, Diana Alejandra Pantoja Pachajoa, Fernando Andrés Alvarez, Julian Ezequiel Liaño, Joan Tefay, Abdulrahman Alshaikh, Layla Hasan, Felipe Couto Gomes, Thiago R A Calderan, Elcio S Hirano, Dragomir Dardanov, Alexander Julianov, Azize Saroglu, Boyko Atanasov, Nikolay Belev, Nikola Kovachev, Shannon Melissa Chan, Hon-Ting Lok, Diego Salcedo, Diana Robayo, María Alejandra Triviño, Jan Manak, Saaz Sahani, Jorann de Araujo, Ananya Sethi, Ahmed Awad, Merihan Elbadawy, Ahmed Farid, Asmaa Hanafy, Ahmed Nafea, Ghozy Sherief, Abbas Salah Alzhraa, Wafaa Abdelsalam, Sameh Emile, Ahmed Elfallal, Hossam Elfeki, Hosam Elghadban, Ashraf Shoma, Mohamed Shetiwy, Mohamed Elbahnasawy, Salem Mohamed, Emad Fawzi Hamed, Usama Ahmed Khalil, Elie Chouillard, Andrew Gumbs, Andrea Police, Andrea Mabilia, Kakhi Khutsishvili, Anano Tvaladze, Orestis Ioannidis, Elissavet Anestiadou, Lydia Loutzidou, Konstantinis Konstantinidis, Sofia Konstantinidou, Dimitrios Manatakis, Vasileios Acheimastos, Nikolaos Tasis, Nikolaos Michalopoulos, Panagiotis Kokoropoulos, Maria Papadoliopoulou, Maria Sotiropoulou, Stylianos Kapiris, Panagiotis Metaxas, Ioannis Tsouknidas, Despoina Kefili, George Petrakis, Eirini Synekidou, Konstantinos Dakis, Eirini Alexandridou, Aristeidis Papadopoulos, Christos Chouliaras, Odysseas Mouzakis, Francesk Mulita, Ioannis Maroulis, Michail Vailas, Tania 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Subjects
Infected pancreatic necrosi, Digestive System Diseases::Pancreatic Diseases::Pancreatitis::Pancreatitis, Acute Necrotizing [DISEASES], Infected pancreatic necrosis, Pàncrees - Infecció, 3126 Surgery, anesthesiology, intensive care, radiology, enfermedades del sistema digestivo::enfermedades pancreáticas::pancreatitis::pancreatitis aguda necrotizante [ENFERMEDADES], técnicas de investigación::métodos epidemiológicos::estadística como asunto::probabilidad::riesgo::factores de riesgo [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS], Acute pancreatitis, infecciones bacterianas y micosis::infección::infecciones intraabdominales [ENFERMEDADES], Pancreatitis, International study, Organ failure, Surgery, Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT], Mortality, Acute pancreatiti, Pàncrees - Necrosi, Bacterial Infections and Mycoses::Infection::Intraabdominal Infections [DISEASES]
Abstract

The identification of high-risk patients in the early stages of infected pancreatic necrosis (IPN) is critical, because it could help the clinicians to adopt more effective management strategies. We conducted a post hoc analysis of the MANCTRA-1 international study to assess the association between clinical risk factors and mortality among adult patients with IPN. Univariable and multivariable logistic regression models were used to identify prognostic factors of mortality. We identified 247 consecutive patients with IPN hospitalised between January 2019 and December 2020. History of uncontrolled arterial hypertension (p = 0.032; 95% CI 1.135–15.882; aOR 4.245), qSOFA (p = 0.005; 95% CI 1.359–5.879; aOR 2.828), renal failure (p = 0.022; 95% CI 1.138–5.442; aOR 2.489), and haemodynamic failure (p = 0.018; 95% CI 1.184–5.978; aOR 2.661), were identified as independent predictors of mortality in IPN patients. Cholangitis (p = 0.003; 95% CI 1.598–9.930; aOR 3.983), abdominal compartment syndrome (p = 0.032; 95% CI 1.090–6.967; aOR 2.735), and gastrointestinal/intra-abdominal bleeding (p = 0.009; 95% CI 1.286–5.712; aOR 2.710) were independently associated with the risk of mortality. Upfront open surgical necrosectomy was strongly associated with the risk of mortality (p p = 0.018; 95% CI 0.138–0.834; aOR 0.339) and enteral nutrition (p = 0.003; 95% CI 0.143–0.716; aOR 0.320) were found as protective factors. Organ failure, acute cholangitis, and upfront open surgical necrosectomy were the most significant predictors of mortality. Our study confirmed that, even in a subgroup of particularly ill patients such as those with IPN, upfront open surgery should be avoided as much as possible. Study protocol registered in ClinicalTrials.Gov (I.D. Number NCT04747990). Graphical abstract

Published
2023

28. Linking multiple pathogenic pathways in Alzheimer's disease.

Author

Bou Khalil R, Khoury E, and Koussa S

Abstract

Alzheimer's disease (AD) is a chronic neurodegenerative disorder presenting as progressive cognitive decline with dementia that does not, to this day, benefit from any disease-modifying drug. Multiple etiologic pathways have been explored and demonstrate promising solutions. For example, iron ion chelators, such as deferoxamine, are a potential therapeutic solution around which future studies are being directed. Another promising domain is related to thrombin inhibitors. In this minireview, a common pathophysiological pathway is suggested for the pathogenesis of AD to prove that all these mechanisms converge onto the same cascade of neuroinflammatory events. This common pathway is initiated by the presence of vascular risk factors that induce brain tissue hypoxia, which leads to endothelial cell activation. However, the ensuing hypoxia stimulates the production and release of reactive oxygen species and pro-inflammatory proteins. Furthermore, the endothelial activation may become excessive and dysfunctional in predisposed individuals, leading to thrombin activation and iron ion decompartmentalization. The oxidative stress that results from these modifications in the neurovascular unit will eventually lead to neuronal and glial cell death, ultimately leading to the development of AD. Hence, future research in this field should focus on conducting trials with combinations of potentially efficient treatments, such as the combination of intranasal deferoxamine and direct thrombin inhibitors.

Published
2016
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29. (2-amino-phenyl)-amides of omega-substituted alkanoic acids as new histone deacetylase inhibitors.

Author

Vaisburg A, Bernstein N, Frechette S, Allan M, Abou-Khalil E, Leit S, Moradei O, Bouchain G, Wang J, Woo SH, Fournel M, Yan PT, Trachy-Bourget MC, Kalita A, Beaulieu C, Li Z, MacLeod AR, Besterman JM, and Delorme D

Subjects
Cell Cycle drug effects, Cell Cycle physiology, Cell Line, Tumor, Histone Deacetylases metabolism, Humans, Amides chemistry, Amides pharmacology, Enzyme Inhibitors chemistry, Enzyme Inhibitors pharmacology, Histone Deacetylase Inhibitors
Abstract

A variety of omega-substituted alkanoic acid (2-amino-phenyl)-amides were designed and synthesized. These compounds were shown to inhibit recombinant human histone deacetylases (HDACs) with IC(50) values in the low micromolar range and induce hyperacetylation of histones in whole cells. They induced expression of p21WAF1/Cip1 and caused cell-cycle arrest in human cancer cells. Compounds in this class showed efficacy in human tumor xenograft models.

Published
2004
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30. Sulfonamide anilides, a novel class of histone deacetylase inhibitors, are antiproliferative against human tumors.

Author

Fournel M, Trachy-Bourget MC, Yan PT, Kalita A, Bonfils C, Beaulieu C, Frechette S, Leit S, Abou-Khalil E, Woo SH, Delorme D, MacLeod AR, Besterman JM, and Li Z

Subjects
Acetylation drug effects, Anilides toxicity, Animals, Antineoplastic Agents toxicity, Benzamides pharmacology, Benzamides toxicity, Colonic Neoplasms drug therapy, Colonic Neoplasms metabolism, Colonic Neoplasms pathology, Cyclin A biosynthesis, Cyclin B biosynthesis, Cyclin B1, Cyclin-Dependent Kinase Inhibitor p21, Cyclins biosynthesis, Enzyme Inhibitors pharmacology, Enzyme Inhibitors toxicity, Female, G2 Phase drug effects, Histones metabolism, Humans, Mice, Mice, Inbred BALB C, Mice, Nude, Mitosis drug effects, Pyridines pharmacology, Pyridines toxicity, Sulfonamides toxicity, Xenograft Model Antitumor Assays, Anilides pharmacology, Antineoplastic Agents pharmacology, Histone Deacetylase Inhibitors, Sulfonamides pharmacology
Abstract

Inhibition of histone deacetylases (HDACs) is emerging as a new strategy in human cancer therapy. We have designed and synthesized novel nonhydroxamate sulfonamide anilides that can inhibit human HDAC enzymes and can induce hyperacetylation of histones in human cancer cells. These compounds selectively inhibit proliferation and cause cell cycle blocks in various human cancer cells but not in normal cells. The growth inhibitory activity of sulfonamide anilides against human cancer cells in vitro is reversible and is dependent on the induction of histone acetylation. One of these compounds (Compound 2) can significantly reduce tumor growth of implanted human colon tumors in nude mice. Unlike another anilide-based HDAC inhibitor, MS-275, which decreases both red and white blood counts and reduces spleen weights in mice, Compound 2 does not exhibit noticeable toxicity. By using cDNA array analysis, we have identified downstream genes whose expression is altered by Compound 2 in human cancer cells. In correlation with its antitumor activity both in vitro and in vivo, Compound 2 induces expression of p21(WAF1/Cip1), gelsolin, and keratin 19, while down-regulating expression of cyclin A and cyclin B1 in human cancer cells in a dose-dependent manner. Our results suggest that sulfonamide anilides are novel HDAC inhibitors and may be useful as antiproliferative agents in cancer chemotherapy.

Published
2002

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