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3. Association Between Variants of PRDM1 and NDP52 and Crohn's Disease, Based on Exome Sequencing and Functional Studies

Author

Ellinghaus, David, Zhang, Hu, Zeissig, Sebastian, Lipinski, Simone, Till, Andreas, Jiang, Tao, Stade, Björn, Bromberg, Yana, Ellinghaus, Eva, Keller, Andreas, Rivas, Manuel A, Skieceviciene, Jurgita, Doncheva, Nadezhda T, Liu, Xiao, Liu, Qing, Jiang, Fuman, Forster, Michael, Mayr, Gabriele, Albrecht, Mario, Häsler, Robert, Boehm, Bernhard O, Goodall, Jane, Berzuini, Carlo R, Lee, James, Andersen, Vibeke, Vogel, Ulla, Kupcinskas, Limas, Kayser, Manfred, Krawczak, Michael, Nikolaus, Susanna, Weersma, Rinse K, Ponsioen, Cyriel Y, Sans, Miquel, Wijmenga, Cisca, Strachan, David P, McArdle, Wendy L, Vermeire, Séverine, Rutgeerts, Paul, Sanderson, Jeremy D, Mathew, Christopher G, Vatn, Morten H, Wang, Jun, Nöthen, Markus M, Duerr, Richard H, Büning, Carsten, Brand, Stephan, Glas, Jürgen, Winkelmann, Juliane, Illig, Thomas, Latiano, Anna, Annese, Vito, Halfvarson, Jonas, D'Amato, Mauro, Daly, Mark J, Nothnagel, Michael, Karlsen, Tom H, Subramani, Suresh, Rosenstiel, Philip, Schreiber, Stefan, Parkes, Miles, and Franke, Andre

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Nutrition and Dietetics, Biotechnology, Genetics, Inflammatory Bowel Disease, Autoimmune Disease, Human Genome, Clinical Research, Digestive Diseases, Crohn's Disease, Aetiology, 2.1 Biological and endogenous factors, Oral and gastrointestinal, Inflammatory and immune system, Adolescent, Adult, Case-Control Studies, Colitis, Ulcerative, Crohn Disease, Exome, Female, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Male, Mutation, Missense, Nuclear Proteins, Polymorphism, Single Nucleotide, Positive Regulatory Domain I-Binding Factor 1, Quantitative Trait Loci, Repressor Proteins, Young Adult, Whole-Exome Sequencing, Complex Disease, CD, Crohn’s disease, GWAS, IBD, IFN, NF-κB, PBL, PBMC, SNP, SNV, TLR, Toll-like receptor, UC, WT, eQTL, expression quantitative trait locus, genome-wide association studies, inflammatory bowel disease, interferon, nuclear factor κB, peripheral blood lymphocyte, peripheral blood mononuclear cell, qRT-PCR, quantitative reverse-transcription polymerase chain reaction, single nucleotide polymorphism, single nucleotide variant, ulcerative colitis, wild-type, Neurosciences, Paediatrics and Reproductive Medicine, Gastroenterology & Hepatology, Clinical sciences, Nutrition and dietetics
Abstract

Background & aimsGenome-wide association studies (GWAS) have identified 140 Crohn's disease (CD) susceptibility loci. For most loci, the variants that cause disease are not known and the genes affected by these variants have not been identified. We aimed to identify variants that cause CD through detailed sequencing, genetic association, expression, and functional studies.MethodsWe sequenced whole exomes of 42 unrelated subjects with CD and 5 healthy subjects (controls) and then filtered single nucleotide variants by incorporating association results from meta-analyses of CD GWAS and in silico mutation effect prediction algorithms. We then genotyped 9348 subjects with CD, 2868 subjects with ulcerative colitis, and 14,567 control subjects and associated variants analyzed in functional studies using materials from subjects and controls and in vitro model systems.ResultsWe identified rare missense mutations in PR domain-containing 1 (PRDM1) and associated these with CD. These mutations increased proliferation of T cells and secretion of cytokines on activation and increased expression of the adhesion molecule L-selectin. A common CD risk allele, identified in GWAS, correlated with reduced expression of PRDM1 in ileal biopsy specimens and peripheral blood mononuclear cells (combined P = 1.6 × 10(-8)). We identified an association between CD and a common missense variant, Val248Ala, in nuclear domain 10 protein 52 (NDP52) (P = 4.83 × 10(-9)). We found that this variant impairs the regulatory functions of NDP52 to inhibit nuclear factor κB activation of genes that regulate inflammation and affect the stability of proteins in Toll-like receptor pathways.ConclusionsWe have extended the results of GWAS and provide evidence that variants in PRDM1 and NDP52 determine susceptibility to CD. PRDM1 maps adjacent to a CD interval identified in GWAS and encodes a transcription factor expressed by T and B cells. NDP52 is an adaptor protein that functions in selective autophagy of intracellular bacteria and signaling molecules, supporting the role of autophagy in the pathogenesis of CD.

Published
2013

4. A randomised phase I study of etrolizumab (rhuMAb β7) in moderate to severe ulcerative colitis

Author

Rutgeerts, Paul J, Fedorak, Richard N, Hommes, Daan W, Sturm, Andreas, Baumgart, Daniel C, Bressler, Brian, Schreiber, Stefan, Mansfield, John C, Williams, Marna, Tang, Meina, Visich, Jennifer, Wei, Xiaohui, Keir, Mary, Luca, Diana, Danilenko, Dimitri, Egen, Jackson, and O'Byrne, Sharon

Subjects
Inflammatory Bowel Disease, Biotechnology, Clinical Trials and Supportive Activities, Clinical Research, Digestive Diseases, Autoimmune Disease, Evaluation of treatments and therapeutic interventions, 6.1 Pharmaceuticals, Adolescent, Adult, Aged, Antibodies, Monoclonal, Antibodies, Monoclonal, Humanized, Colitis, Ulcerative, Dose-Response Relationship, Drug, Double-Blind Method, Female, Gastrointestinal Agents, Humans, Infusions, Intravenous, Injections, Subcutaneous, Male, Middle Aged, Severity of Illness Index, Treatment Outcome, Young Adult, Etrolizumab, rhuMAb 7, ulcerative colitis, drug development, safety, pharmacokinetics, IBD clinical, IBD basic research, IBD, IBD models, apoptosis, cell cycle, immunology, inflammatory bowel disorders, dendritic cells, Crohn's disease, cytokines, genetics, signal transduction, IBD-genetics, antibody targeted therapy, arthritis, autoimmune disease, integrins, IBD–genetics, rhuMAb β7, Clinical Sciences, Paediatrics and Reproductive Medicine, Gastroenterology & Hepatology
Abstract

ObjectiveEtrolizumab (rhuMAb β7, anti-β7, PRO145223) is a humanised monoclonal antibody targeting the β7 subunit of the heterodimeric integrins α4β7 and αEβ7, which are implicated in leucocyte migration and retention in ulcerative colitis (UC). This randomised phase I study evaluated the safety and pharmacology of etrolizumab in patients with moderate to severe UC.DesignIn the single ascending dose (SAD) stage, etrolizumab (0.3, 1.0, 3.0, 10 mg/kg intravenous, 3.0 mg/kg subcutaneous (SC) or placebo) was administered 4:1 (n=25) in each cohort. In the multiple dose (MD) stage, new patients received monthly etrolizumab (0.5 mg/kg SC (n=4), 1.5 mg/kg SC (n=5), 3.0 mg/kg SC (n=4), 4.0 mg/kg intravenous (n=5)) or placebo (n=5). The pharmacokinetics was studied and Mayo Clinic Score evaluated at baseline, day 29 (SAD), and days 43 and 71 (MD).ResultsIn the SAD stage, there were no dose limiting toxicities, infusion or injection site reactions. Two impaired wound healing serious adverse events occurred in two patients receiving etrolizumab. In the MD stage, there were no dose limiting toxicities, and no infusion or injection site reactions. Headache was the most common adverse event, occurring more often in etrolizumab patients. Antietrolizumab antibodies were detected in two subjects. The duration of β7 receptor full occupancy was dose related. A clinical response was observed in 12/18 patients, and clinical remission in 3/18 patients treated with etrolizumab in the MD stage, compared with 4/5 and 1/5 placebo patients, respectively.ConclusionEtrolizumab is well tolerated in moderate to severe UC. Further investigation is warranted.

Published
2013

5. Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47

Author

Anderson, Carl A, Boucher, Gabrielle, Lees, Charlie W, Franke, Andre, D'Amato, Mauro, Taylor, Kent D, Lee, James C, Goyette, Philippe, Imielinski, Marcin, Latiano, Anna, Lagacé, Caroline, Scott, Regan, Amininejad, Leila, Bumpstead, Suzannah, Baidoo, Leonard, Baldassano, Robert N, Barclay, Murray, Bayless, Theodore M, Brand, Stephan, Büning, Carsten, Colombel, Jean-Frédéric, Denson, Lee A, De Vos, Martine, Dubinsky, Marla, Edwards, Cathryn, Ellinghaus, David, Fehrmann, Rudolf SN, Floyd, James AB, Florin, Timothy, Franchimont, Denis, Franke, Lude, Georges, Michel, Glas, Jürgen, Glazer, Nicole L, Guthery, Stephen L, Haritunians, Talin, Hayward, Nicholas K, Hugot, Jean-Pierre, Jobin, Gilles, Laukens, Debby, Lawrance, Ian, Lémann, Marc, Levine, Arie, Libioulle, Cecile, Louis, Edouard, McGovern, Dermot P, Milla, Monica, Montgomery, Grant W, Morley, Katherine I, Mowat, Craig, Ng, Aylwin, Newman, William, Ophoff, Roel A, Papi, Laura, Palmieri, Orazio, Peyrin-Biroulet, Laurent, Panés, Julián, Phillips, Anne, Prescott, Natalie J, Proctor, Deborah D, Roberts, Rebecca, Russell, Richard, Rutgeerts, Paul, Sanderson, Jeremy, Sans, Miquel, Schumm, Philip, Seibold, Frank, Sharma, Yashoda, Simms, Lisa A, Seielstad, Mark, Steinhart, A Hillary, Targan, Stephan R, van den Berg, Leonard H, Vatn, Morten, Verspaget, Hein, Walters, Thomas, Wijmenga, Cisca, Wilson, David C, Westra, Harm-Jan, Xavier, Ramnik J, Zhao, Zhen Z, Ponsioen, Cyriel Y, Andersen, Vibeke, Torkvist, Leif, Gazouli, Maria, Anagnou, Nicholas P, Karlsen, Tom H, Kupcinskas, Limas, Sventoraityte, Jurgita, Mansfield, John C, Kugathasan, Subra, Silverberg, Mark S, Halfvarson, Jonas, Rotter, Jerome I, Mathew, Christopher G, Griffiths, Anne M, Gearry, Richard, Ahmad, Tariq, Brant, Steven R, and Chamaillard, Mathias

Subjects
Biological Sciences, Genetics, Autoimmune Disease, Human Genome, Crohn's Disease, Digestive Diseases, Nutrition, Inflammatory Bowel Disease, Prevention, Oral and gastrointestinal, Colitis, Ulcerative, Crohn Disease, Genome-Wide Association Study, Humans, Risk, Medical and Health Sciences, Developmental Biology, Agricultural biotechnology, Bioinformatics and computational biology
Abstract

Genome-wide association studies and candidate gene studies in ulcerative colitis have identified 18 susceptibility loci. We conducted a meta-analysis of six ulcerative colitis genome-wide association study datasets, comprising 6,687 cases and 19,718 controls, and followed up the top association signals in 9,628 cases and 12,917 controls. We identified 29 additional risk loci (P < 5 × 10(-8)), increasing the number of ulcerative colitis-associated loci to 47. After annotating associated regions using GRAIL, expression quantitative trait loci data and correlations with non-synonymous SNPs, we identified many candidate genes that provide potentially important insights into disease pathogenesis, including IL1R2, IL8RA-IL8RB, IL7R, IL12B, DAP, PRDM1, JAK2, IRF5, GNA12 and LSP1. The total number of confirmed inflammatory bowel disease risk loci is now 99, including a minimum of 28 shared association signals between Crohn's disease and ulcerative colitis.

Published
2011

6. Genetic variants of Wnt transcription factor TCF-4 (TCF7L2) putative promoter region are associated with small intestinal Crohn's disease.

Author

Koslowski, Maureen J, Kübler, Irmgard, Chamaillard, Mathias, Schaeffeler, Elke, Reinisch, Walter, Wang, Guoxing, Beisner, Julia, Teml, Alexander, Peyrin-Biroulet, Laurent, Winter, Stefan, Herrlinger, Klaus R, Rutgeerts, Paul, Vermeire, Séverine, Cooney, Rachel, Fellermann, Klaus, Jewell, Derek, Bevins, Charles L, Schwab, Matthias, Stange, Eduard F, and Wehkamp, Jan

Subjects
Paneth Cells, Ileum, Humans, Crohn Disease, Genetic Predisposition to Disease, Sequence Analysis, DNA, Genotype, Linkage Disequilibrium, Polymorphism, Single Nucleotide, Alleles, Adolescent, Adult, Female, Male, TCF Transcription Factors, Nod2 Signaling Adaptor Protein, Promoter Regions, Genetic, Genetic Variation, Young Adult, Transcription Factor 7-Like 2 Protein, Polymorphism, Single Nucleotide, Promoter Regions, Genetic, Sequence Analysis, DNA, General Science & Technology
Abstract

Reduced expression of Paneth cell antimicrobial alpha-defensins, human defensin (HD)-5 and -6, characterizes Crohn's disease (CD) of the ileum. TCF-4 (also named TCF7L2), a Wnt signalling pathway transcription factor, orchestrates Paneth cell differentiation, directly regulates the expression of HD-5 and -6, and was previously associated with the decrease of these antimicrobial peptides in a subset of ileal CD. To investigate a potential genetic association of TCF-4 with ileal CD, we sequenced 2.1 kb of the 5' flanking region of TCF-4 in a small group of ileal CD patients and controls (n = 10 each). We identified eight single nucleotide polymorphisms (SNPs), of which three (rs3814570, rs10885394, rs10885395) were in linkage disequilibrium and found more frequently in patients; one (rs3814570) was thereby located in a predicted regulatory region. We carried out high-throughput analysis of this SNP in three cohorts of inflammatory bowel disease (IBD) patients and controls. Overall 1399 healthy individuals, 785 ulcerative colitis (UC) patients, 225 CD patients with colonic disease only and 784 CD patients with ileal involvement were used to determine frequency distributions. We found an association of rs3814570 with ileal CD but neither with colonic CD or UC, in a combined analysis (allele positivity: OR 1.27, 95% CI 1.07 to 1.52, p = 0.00737), which was the strongest in ileal CD patients with stricturing behaviour (allele frequency: OR 1.32, 95% CI 1.08 to1.62, p = 0.00686) or an additional involvement of the upper GIT (allele frequency: OR 1.38, 95% CI 1.03 to1.84, p = 0.02882). The newly identified genetic association of TCF-4 with ileal CD provides evidence that the decrease in Paneth cell alpha-defensins is a primary factor in disease pathogenesis.

Published
2009

8. Proceedings of the 23rd Paediatric Rheumatology European Society Congress: part one

Author

F. De Benedetti, J. Anton, M. Gattorno, H. Lachmann, I. Kone-Paut, S. Ozen, J. Frenkel, A. Simon, A. Zeft, E. Ben-Chetrit, H. M. Hoffman, Y. Joubert, K. Lheritier, A. Speziale, J. Guido, Roberta Caorsi, Federica Penco, Alice Grossi, Antonella Insalaco, Maria Alessio, Giovanni Conti, Federico Marchetti, Alberto Tommasini, Silvana Martino, Romina Gallizzi, Annalisa Salis, Francesca Schena, Francesco Caroli, Alberto Martini, Gianluca Damonte, Isabella Ceccherini, Marco Gattorno, Marie-Louise Frémond, Carolina Uggenti, Lien Van Eyck, Isabelle Melki, Darragh Duffy, Vincent Bondet, Yoann Rose, Bénédicte Neven, Yanick Crow, Mathieu P. Rodero, Yvonne Kusche, Johannes Roth, Katarzyna Barczyk-Kahlert, Giovanna Ferrara, Annalisa Chiocchetti, Silvio Polizzi, Josef Vuch, Diego Vozzi, Anna Mondino, Erica Valencic, Serena Pastore, Andrea Taddio, Flavio Faletra, Umberto Dianzani, Ugo Ramenghi, Qing Zhou, Xiaomin Yu, Erkan Demirkaya, Natalie Deuitch, Deborah Stone, Wanxia Tsai, Amanda Ombrello, Tina Romeo, Elaine F. Remmers, JaeJin Chae, Massimo Gadina, Steven Welch, Seza Ozen, Rezan Topaloglu, Mario Abinun, Daniel L. Kastner, Ivona Aksentijevich, Donatella Vairo, Rosalba Monica Ferraro, Giulia Zani, Jessica Galli, Micaela De Simone, Marco Cattalini, Elisa Fazzi, Silvia Giliani, Ebun Omoyinmi, Ariane Standing, Dorota Rowczenio, Annette Keylock, Sonia Melo Gomes, Fiona Price-Kuehne, Sira Nanthapisal, Claire Murphy, Thomas Cullup, Lucy Jenkins, Kimberly Gilmour, Despina Eleftheriou, Helen Lachmann, Philip Hawkins, Nigel Klein, Paul Brogan, Anita Dhanrajani, Mercedes Chan, Stephanie Pau, Janet Ellsworth, Jaime Guzman, Florence A. Aeschlimann, Marinka Twilt, Simon W. Eng, Shehla Sheikh, Ronald M. Laxer, Diane Hebert, Damien Noone, Christian Pagnoux, Susanne M. Benseler, Rae S. Yeung, Christoph Kessel, Katrin Lippitz, Toni Weinhage, Claas Hinze, Helmut Wittkowski, Dirk Holzinger, Niklas Grün, Dirk Föll, Pieter Van Dijkhuizen, Federica Del Chierico, Clara Malattia, Alessandra Russo, Denise Pires Marafon, Nienke M. ter Haar, Silvia Magni-Manzoni, Sebastiaan J. Vastert, Bruno Dallapiccola, Berent Prakken, Fabrizio De Benedetti, Lorenza Putignani, Berna Eren Fidanci, Kenan Barut, Serap Arıcı, Dogan Simsek, Mustafa Cakan, Ezgi D. Batu, Sezgin Şahin, Ayşenur Kısaarslan, Ebru Yilmaz, Özge Basaran, Ferhat Demir, Kubra Ozturk, Zübeyde Gunduz, Betül Sozeri, Balahan Makay, Nuray Ayaz, Onder Yavascan, Ozlem Aydog, Yelda Bilginer, Zelal Ekinci, Dilek Yıldız, Faysal Gök, Muferret Erguven, Erbil Unsal, Ozgur Kasapcopur, For the FMF Arthritis Vasculitis and Orphan Disease Research in Paediatric Rheumatology (FAVOR), Hafize E. Sönmez, Betül Sözeri, Yonatan Butbul, Seza Özen, Claudia Bracaglia, Giusi Prencipe, Manuela Pardeo, Geneviève Lapeyre, Emiliano Marasco, Walter Ferlin, Robert Nelson, Cristina de Min, N. Ruperto, H. I. Brunner, P. Quartier, T. Constantin, E. Alexeeva, K. Marzan, N. Wulffraat, R. Schneider, S. Padeh, V. Chasnyk, C. Wouters, J. B. Kuemmerle-Deschner, T. Kallinich, B. Lauwerys, E. Haddad, E. Nasonov, M. Trachana, O. Vougiouka, K. Leon, E. Vritzali, A. Martini, D. Lovell, PRINTO/PRCSG, Stefano Volpi, Claudia Pastorino, Francesca Kalli, Alessia Omenetti, Sabrina Chiesa, Arinna Bertoni, Paolo Picco, Gilberto Filaci, Elisabetta Traggiai, Marie-Louise Fremond, Naoki Kitabayashi, Olivero Sacco, Isabelle Meyts, Marie-Anne Morren, Carine Wouters, Eric Legius, Isabelle Callebaut, Christine Bodemer, Frederic Rieux-Laucat, Mathieu Rodero, Nadia Jeremiah, Alexandre Belot, Eric Jeziorski, Didier Bessis, Guilhem Cros, Gillian I. Rice, Bruno Charbit, Anne Hulin, Nihel Khoudour, Consuelo Modesto Caballero, Monique Fabre, Laureline Berteloot, Muriel Le Bourgeois, Philippe Reix, Thierry Walzer, Despina Moshous, Stéphane Blanche, Alain Fischer, Brigitte Bader-Meunier, Frédéric Rieux-Laucat, K. Annink, N. ter Haar, S. Al-Mayouf, G. Amaryan, K. Barron, S. Benseler, P. Brogan, L. Cantarini, M. Cattalini, A. Cochino, F. Dedeoglu, A. De Jesus, O. Dellacasa, E. Demirkaya, P. Dolezalova, K. Durrant, G. Fabio, R. Gallizzi, R. Goldbach-Mansky, E. Hachulla, V. Hentgen, T. Herlin, M. Hofer, H. Hoffman, A. Insalaco, A. Jansson, I. Koné-Paut, A. Kozlova, J. Kuemmerle-Deschner, R. Laxer, S. Nielsen, I. Nikishina, A. Ombrello, E. Papadopoulou-Alataki, A. Ravelli, D. Rigante, R. Russo, Y. Uziel, Nienke ter Haar, Jerold Jeyaratnam, Anna Simon, Matteo Doglio, Jordi Anton, Consuelo Modesto, Pierre Quartier, Esther Hoppenreijs, Luca Cantarini, Loredana Lepore, Inmaculada Calvo Penades, Christina Boros, Rita Consolini, Donato Rigante, Ricardo Russo, Jana Pachlopnik Schmid, Thirusha Lane, Nicolino Ruperto, Joost Frenkel, Chiara Passarelli, Elisa Pisaneschi, Virginia Messia, Antonio Novelli, Fabrizio Debenedetti, P. A. Brogan, X. Wei, Martina Finetti, Francesca Orlando, Elisabetta Cortis, Angela Miniaci, Nicola Ruperto, Charlotte Eijkelboom, Pavla Dolezalova, Isabelle Koné-Paut, Marija Jelusic-Drazic, Liliana Bezrodnik, Mari Carmen Pinedo, Valda Stanevicha, Marielle van Gijn, Silvia Federici, Hermann Girschick, Gerd Ganser, Susan Nielsen, Troels Herlin, Sulaiman Mohammed Al-Mayouf, Michael Hofer, Jasmin Kuemmerle-Deschner, Susanne Schalm, Annette Jansson, on behalf of PRINTO and Eurofever registry, Marta Marchi, Chiara Marini, Angelo Ravelli, Alberto Garaventa, Sonia Carta, Enrica Balza, Patrizia Castellani, Caterina Pellecchia, Silvia Borghini, Maria Libera Trotta, Anna Rubartelli, Andrew Henrey, Thomas Loughin, Roberta Berard, Natalie Shiff, Roman Jurencak, Susanne Benseler, Lori Tucker, on behalf of ReACCh-Out Investigators, Charalampia Papadopoulou, Ying Hong, Petra Krol, Yiannis Ioannou, Clarissa Pilkington, Hema Chaplin, Stephania Simou, Marietta Charakida, Lucy Wedderburn, Lynn R. Spiegel, Sara Ahola Kohut, Jennifer Stinson, Paula Forgeron, Miriam Kaufman, Nadia Luca, Khush Amaria, Mary Bell, J Swart, F. Boris, E. Castagnola, A. Groll, G. Giancane, G. Horneff, H. I. Huppertz, T. Wolfs, E. Alekseeva, V. Panaviene, F. Uettwiller, V. Stanevicha, L. M. Ailioaie, E. Tsitami, S. Kamphuis, G. Susic, F. Sztajnbok, B. Flato, A. Pistorio, Stephanie J. W. Shoop, Suzanne M. M. Verstappen, Janet E. McDonagh, Wendy Thomson, Kimme L. Hyrich, CAPS, Maarit Tarkiainen, Pirjo Tynjala, Pekka Lahdenne, Janne Martikainen, Acute-JIA Study Group, Meredyth Wilkinson, Christopher Piper, Georg Otto, Claire T. Deakin, Stefanie Dowle, Stefania Simou, Daniel Kelberman, Claudia Mauri, Elizabeth Jury, David Isenberg, Lucy R. Wedderburn, Kiran Nistala, I. Foeldvari, D. J. Lovell, G. Simonini, M. Bereswill, J. Kalabic, Kiem Oen, Brian M. Feldman, Brenden Dufault, Jennifer Lee, Karen Watanabe Duffy, Ciaran Duffy, ReACCh-Out Investigators, N. Tzaribachev, G. Vega-Cornejo, I. Louw, A. Berman, I. Calvo, R. Cuttica, F. Avila-Zapata, R. Cimaz, E. Solau-Gervais, R. Joos, G. Espada, X. Li, M. Nys, R. Wong, S. Banerjee, For Pediatric Rheumatology International Trials Organization (PRINTO)/Pediatric Rheumatology Collaborative Study Group (PRCSG), Rebecca Nicolai, Margherita Verardo, Adele D’Amico, Luisa Bracci-Laudiero, Gian Marco Moneta, Gillian Rice, Anne-Laure Mathieu, Sulliman O. Omarjee, Tracy A. Briggs, James O’Sullivan, Simon Williams, Rolando Cimaz, Eve Smith, Michael W. Beresford, Yanick J. Crow, GENIAL Investigators, UK JSLE Study Group, Madeleine Rooney, Nick Bishop, joyce davidson, Clarissa pilkington, Michael Beresford, Jacqui Clinch, Rangaraj Satyapal, Helen Foster, Janet Gardner Medwin, Janet McDonagh, Sue Wyatt, On Behalf of the British Society for Paediatric and Adolescent Rheumatology, Valentina Litta Modignani, Francesco Baldo, Stefano Lanni, Alessandro Consolaro, Giovanni Filocamo, Helen J. Lachmann, on behalf of Eurofever Registry, Gianmarco Moneta, Camilla Celani, Bilade Cherqaoui, Linda Rossi-Semerano, Perrine Dusser, Véronique Hentgen, Claire Grimwood, Linda Rossi, Isabelle Kone Paut, Veronique Hentgen, Denise Lasigliè, Denise Ferrera, Giulia Amico, Marco Di Duca, Laura Obici, Roberto Ravazzolo, Ryuta Nishikomori, Juan Arostegui, Andrea Petretto, Chiara Lavarello, Elvira Inglese, Federica Vanoni, Michaël Hofer, on behalf of EUROFEVER PROJECT, P. N. Hawkins, T. van der Poll, U. A. Walker, H. H. Tilson, Pascal N. Tyrrell, Raphaela Goldbach-Mansky, Norbert Blank, Hal M. Hoffman, Elisabeth Weissbarth-Riedel, Boris Huegle, Tilmann Kallinich, Ahmet Gul, Marlen Oswald, Fatma Dedeoglu, Aki Hanaya, Takako Miyamae, Manabu Kawamoto, Yumi Tani, Takuma Hara, Yasushi Kawaguchi, Satoru Nagata, Hisashi Yamanaka, Almira Ćosićkić, Fahrija Skokić, Belkisa Čolić, Sanimir Suljendić, Anna Kozlova, Irina Mersiyanova, Mariya Panina, Lily Hachtryan, Vasiliy Burlakov, Elena Raikina, Alexey Maschan, Anna Shcherbina, Banu Acar, Meryem Albayrak, Betul Sozeri, Sezgin Sahin, Amra Adrovic, Nese Inan, Serhan Sevgi, Caroline M. Andreasen, Anne Grethe Jurik, Mia B. Glerup, Christian Høst, Birgitte T. Mahler, Ellen-Margrethe Hauge, Cecilia Lazea, Laura Damian, Calin Lazar, Rodica Manasia, Chloe M. Stephenson, Vimal Prajapati, Paivi M. Miettunen, Dilek Yılmaz, Yavuz Tokgöz, Yasin Bulut, Harun Çakmak, Ferah Sönmez, Elif Comak, Gülşah Kaya Aksoy, Mustafa Koyun, Sema Akman, Yunus Arıkan, Ender Terzioğlu, Osman Nidai Özdeş, İbrahim Keser, Hüseyin Koçak, Ayşen Bingöl, Aygen Yılmaz, Reha Artan, X. Xu, Fatemeh F. Mehregan, Vahid Ziaee, Mohammad H. Moradinejad, Francesco La Torre, Clotilde Alizzi, Pio D’Adamo, G. Junge, J. Gregson, Hasmik Sargsyan, Hulya Zengin, Berna E. Fidanci, Cagla Kaymakamgil, Dilek Konukbay, Dilek Yildiz, Faysal Gok, Iris Stoler, Judith Freytag, Banu Orak, Christine Seib, Lars Esmann, Eva Seipelt, Faekah Gohar, Dirk Foell, Ismail Dursun, Sebahat Tulpar, Sibel Yel, Demet Kartal, Murat Borlu, Funda Bastug, Hakan Poyrazoglu, Zubeyde Gunduz, Kader Kose, Mehmet E. Yuksel, Abdullah Calıskan, Ahmet B. Cekgeloglu, Ruhan Dusunsel, Katerina Bouchalova, Jana Franova, Marcel Schuller, Marie Macku, Katerina Theodoropoulou, Raffaella Carlomagno, Annette von Scheven-Gête, Claudia Poloni, Laura O. Damian, Dan Cosma, Amanda Radulescu, Dan Vasilescu, Liliana Rogojan, Simona Rednic, Mihaela Lupse, Lien De Somer, Pierre Moens, Rocio Galindo Zavala, Laura Martín Pedraz, Esmeralda Núñez Cuadros, Gisela Díaz-Cordovés Rego, Antonio L. Urda Cardona, Ilaria Dal Forno, Sara Pieropan, Ombretta Viapiana, Davide Gatti, Gloria Dallagiacoma, Paola Caramaschi, Domenico Biasi, Daniel Windschall, Ralf Trauzeddel, Hartwig Lehmann, Rainer Berendes, Maria Haller, Manuela Krumrey-Langkammerer, Antje Nimtz-Talaska, Philipp Schoof, Ralf Felix Trauzeddel, Christine Nirschl, Estefania Quesada-Masachs, Carla Aguilar Blancafort, Sara Marsal Barril, Francisca Aguiar, Rita Fonseca, Duarte Alves, Ana Vieira, Alberto Vieira, Jorge A. Dias, Iva Brito, Gordana Susic, Vera Milic, Goran Radunovic, Ivan Boricic, Pauline Marteau, Catherine Adamsbaum, Michel De Bandt, Irène Lemelle, Chantal Deslandre, Tu Anh Tran, Anne Lohse, Elisabeth Solau-Gervais, Pascal Pillet, Julien Wipff, Cécile Gaujoux-Viala, Sylvain Breton, Valérie Devauchelle-Pensec, Sandra Gran, Olesja Fehler, Stefanie Zenker, Michael Schäfers, Thomas Vogl, Severine Guillaume Czitrom, EH Pieter Van Dijkhuizen, Silvia Magni Manzoni, Francesca Magnaguagno, Laura Tanturri de Horatio, Nienke M. Ter Haar, Annemieke S. Littooij, Vitor A. Teixeira, Raquel Campanilho-Marques, Ana F. Mourão, Filipa O. Ramos, Manuela Costa, Wafa A. Madan, Orla G. Killeen, Adriana Rodriguez Vidal, Diana Sueiro Delgado, Maria Isabel Gonzalez Fernandez, Berta Lopez Montesinos, Aleksey Kozhevnikov, Nina Pozdeeva, Mikhail Konev, Evgeniy Melchenko, Vladimir Kenis, Gennadiy Novik, Aysenur Pac Kısaarslan, Butsabong Lerkvaleekul, Suphaneewan Jaovisidha, Witaya Sungkarat, Niyata Chitrapazt, Praman Fuangfa, Thumanoon Ruangchaijatuporn, Soamarat Vilaiyuk, Dan Ø. Pradsgaard, Arne Hørlyck, Anne H. Spannow, Carsten W. Heuck, Talia Diaz, Fernando Garcia, Lorenia De La Cruz, Nadina Rubio, Joanna Świdrowska-Jaros, Elzbieta Smolewska, Mirta Lamot, Lovro Lamot, Mandica Vidovic, Edi Paleka Bosak, Ivana Rados, Miroslav Harjacek, Nikolay Tzaribachev, Polymnia Louka, Romiesa Hagoug, Chiara Trentin, Olga Kubassova, Mark Hinton, Mikael Boesen, Olena A. Oshlianska, Illya A. Chaikovsky, G. Mjasnikov, A. Kazmirchyk, Umberto Garagiola, Irene Borzani, Paolo Cressoni, Fabrizia Corona, Eszter Dzsida, Giampietro Farronato, Antonella Petaccia, Alenka Gagro, Agneza Marija Pasini, Goran Roic, Ozren Vrdoljak, Lucija Lujic, Matija Zutelija-Fattorini, Monika M. Esser, Deepthi R. Abraham, Craig Kinnear, Glenda Durrheim, Mike Urban, Eileen Hoal, Victoria B. Nikolayenko, Kubilay Şahin, Yasar Karaaslan, Adele Civino, Giovanni Alighieri, Sergio Davì, Roberto Rondelli, Andrea Magnolato, Francesca Ricci, Alma Olivieri, Valeria Gerloni, Bianca Lattanzi, Francesca Soscia, Alessandro De Fanti, Stefania Citiso, Lorenzo Quartulli, Maria Cristina Maggio, Manuela Marsili, Maria Antonietta Pelagatti, Valentino Conter, Franca Fagioli, Andrea Pession, Marco Garrone, Mariangela Rinaldi, Jaime De Inocencio, Stella Garay, Daniel J. Lovell, Berit Flato, EPOCA Study Group, Angela Aquilani, Simona Cascioli, Ivan Caiello, Denise Pires-Marafón, Rita Carsetti, Emily Robinson, Salvatore Albani, Wilco de Jager, Sytze de Roock, Trang Duong, Justine Ellis, Kimme Hyrich, Laetitia Jervis, Daniel Lovell, Lucy Marshall, Elizabeth D. Mellins, Kirsten Minden, Jane Munro, Peter A. Nigrovic, Jason Palman, Sunil Sampath, Laura E. Schanberg, Susan D. Thompson, Richard Vesely, Chris Wallace, Chris Williams, Qiong Wu, Nico Wulffraat, Rae S. M. Yeung, M. B. Seyger, D. Arikan, J. K. Anderson, A. Lazar, D. A. Williams, C. Wang, R. Tarzynski-Potempa, J. S. Hymans, Gabriele Simonini, Erika Scoccimarro, Irene Pontikaki, Teresa Giani, Alessandro Ventura, Pier Luigi Meroni, Gaetana Minnone, Marzia Soligo, Luigi Manni, Luisa Bracci Laudiero, Noortje Groot, I. Grein, N. M. Wulffraat, R. Schepp, G. Berbers, C. C. Barbosa Sandoval de Souza, V. Paes Leme Ferriani, G. Pileggi, S. de Roock, Ingrid H. R. Grein, Silvia Scala, Elisa Patrone, Casper Schoemaker, on behalf of Dutch JIA patient organization, Wendy Costello, on behalf of ENCA, Suzanne Parsons, Jean-David Cohen, Damien Bentayou, Marc-Antoine Bernard Brunel, Sonia Trope, Jens Klotsche, Miriam Listing, Martina Niewerth, Gerd Horneff, Angelika Thon, Hans-Iko Huppertz, Kirsten Mönkemöller, Ivan Foeldvari, ICON study group, Achille Marino, Stefano Stagi, Niccolò Carli, Federico Bertini, Adriana S. Díaz-Maldonado, Sally Pino, Pilar Guarnizo, Alfonso Ragnar Torres-Jimenez, Berenice Sanchez-Jara, Eunice Solis-Vallejo, Adriana Ivonne Cespedes-Cruz, Maritza Zeferino-Cruz, Julia Veronica Ramirez-Miramontes, Ankur Kumar, Anju Gupta, Deepti Suri, Amit Rawat, Nandita Kakkar, Surjit Singh, Özge A. Gücenmez, Erbil Ünsal, Bo Magnusson, Karina Mördrup, Anna Vermé, Christina Peterson, Board of the Swedish Pediatric Rheumatology Registry, Caroline Freychet, Jean Louis Stephan, Cathryn E. Harkness, Leanne Foster, Emma Henry, Pauline Taggart, Coskun F. Ozkececi, Esra Kurt, Gokalp Basbozkurt, Daiva Gorczyca, Jacek Postępski, Aleksandra Czajkowska, Bogumiła Szponar, Mariola Paściak, Anna Gruenpeter, Iwona Lachór-Motyka, Daria Augustyniak, Edyta Olesińska, Emediong S. Asuka, Tatyana Golovko, Samuel U. Aliejim, Emilio Inarejos Clemente, Estibaliz Iglesias Jimenez, Joan Calzada Hernandez, Sergi Borlan Fernandez, Clara Gimenez Roca, David Moreno Romo, Natalia Rodriguez Nieva, Juan Manuel Mosquera Angarita, Jordi Anton Lopez, Esmeralda Nuñez-Cuadros, Gisela Diaz-Cordovés, Rocío Galindo-Zavala, Antonio Urda-Cardona, Antonio Fernández-Nebro, Daniel Álvarez de la Sierra, Marina Garcia Prat, Mónica Martínez Gallo, Ricardo Pujol Borrell, Ana M. Marín Sánchez, Etienne Merlin, Sylvie Fraitag, Jean-Louis Stephan, Federico Annoni, Giancarla Di Landro, Sofia Torreggiani, Marta Torcoletti, Georgina Tiller, Jo Buckle, Angela Cox, Peter Gowdie, Roger C. Allen, Jonathan D. Akikusa, Hayde G. Hernández-Huirache, Edel R. Rodea-Montero, William Fahy, Christelle Sordet, Karin B. Berggren, Johanna T. Kembe, Joyce Bos, Wineke Armbrust, Marco van Brussel, Jeanette Cappon, Pieter Dijkstra, Jan Geertzen, Elizabeth Legger, Marion van Rossum, Pieter Sauer, Otto Lelieveld, Levent Buluc, Gur Akansel, Bahar Muezzinoglu, Ljubov Rychkova, Tatyana Knyazeva, Anna Pogodina, Tatyana Belova, Tamara Mandzyak, Ekaterina Kulesh, Alessandro Cafarotti, Cosimo Giannini, Roberta Salvatore, Giuseppe Lapergola, Caterina Di Battista, Maria Loredana Marcovecchio, Raffaella Basilico, Piernicola Pelliccia, Francesco Chiarelli, Luciana Breda, Beverley Almeida, Sarah Tansley, Harsha Gunawardena, Neil McHugh, Juvenile Dermatomyositis Research Group (JDRG), Jessie Aouizerate, Marie De Antonio, Christine Barnerias, Guillaume Bassez, Isabelle Desguerre, Romain Gherardi, Jean-Luc Charuel, François-Jérôme Authier, Cyril Gitiaux, C. H. Spencer, Rabheh Abdul Aziz, Chack-Yung Yu, Brent Adler, Sharon Bout-Tabaku, Katherine Lintner, Melissa Moore-Clingenpeel, Liza McCann, Nicola Ambrose, Mario Cortina-Borja, Juvenile Dermatomyositis Cohort and Biomarker Study (JCDBS), Prasad T. Oommen, Fabian Speth, Johannes-Peter Haas, Working Group “Juvenile Dermatomyositis” of the German Society for Paediatric and Adolescent Rheumatology (GKJR), Claudio Lavarello, Gabriella Giancane, Angela Pistorio, Lisa Rider, Rohit Aggarwal, Sheila K. Oliveira, Ruben Cuttica, Michel Fischbach, Gary Sterba, Karine Brochard, Frank Dressler, Patrizia Barone, Ruben Burgos-Vargas, Elizabeth Candell Chalom, Marine Desjonqueres, Graciela Espada, Anders Fasth, Stella Maris Garay, Rose-Marie Herbigneaux, Claire Hoyoux, Chantal Job Deslandre, Frederick W. Miller, Jiri Vencovsky, Erdal Sag, Gulsev Kale, Haluk Topaloglu, Beril Talim, Francesco Zulian, Tadej Avcin, Roberto Marini, Anne Pagnier, Michel Rodiere, Christine Soler, Rebecca Ten Cate, Yosef Uziel, Jelena Vojinovic, Ana V. Villarreal, Nydia Acevedo, Yuridiana Ramirez, Enrique Faugier, Rocio Maldonado, Bita Arabshahi, John H. Lee, Ian Leibowitz, Lawrence O. Okong’o, Jo Wilmshurst, Monika Esser, Christiaan Scott, Ezgi Deniz Batu, Nagehan Emiroglu, Hafize Emine Sonmez, Gokcen Dilsa Tugcu, Zehra Serap Arici, Ebru Yalcin, Deniz Dogru, Ugur Ozcelik, Mithat Haliloglu, Nural Kiper, Masato Yashiro, Mutsuko Yamada, Toshihiko Yabuuchi, Tomonobu Kikkawa, Nobuyuki Nosaka, Yosuke Fujii, Yukie Saito, Hirokazu Tsukahara, Sulaiman M. Al-Mayouf, Nora AlMutiari, Mohammed Muzaffer, Rawiah shehata, Adel Al-Wahadneh, Reem Abdwani, Safia Al-Abrawi, Mohammed Abu-shukair, Zeyad El-Habahbeh, Abdullah Alsonbul, Aleksandra Szabat, Monika Chęć, Violetta Opoka-Winiarska, Biman Saikia, Ranjana W. Minz, Christine Arango, Clara Malagon, Maria D. P. Gomez, Angela C. Mosquera, Ricardo Yepez, Tatiana Gonzalez, Camilo Vargas, GRIP study group, Marta Balzarin, Biagio Castaldi, Elena Reffo, Francesca Sperotto, Giorgia Martini, Alessandra Meneghel, Ornella Milanesi, Ozgur Kasapçopur, Maria Teresa Terreri, Ekaterina Alexeeva, Maria Katsicas, Mikhail Kostik, Thomas Lehman, W.-Alberto Sifuentes-Giraldo, Vanessa Smith, Flavio Sztajnbok, Tadey Avcin, Maria Jose Santos, Dana Nemcova, Cristina Battagliotti, Liora Harel, Mahesh Janarthanan, Kathryn Torok, Nicola Helmus, Eileen Baildem, Michael Blakley, Kim Fligelstone, Antonia Kienast, Clare Pain, Amanda Saracino, Gabriele Simoni, Lisa Weibel, Maria K. Osminina, Nathalia A. Geppe, Olga V. Niconorova, Olesya V. Karashtina, Oksana V. Abbyasova, Olga V. Shpitonkova, Sinem Durmus, Hafize Uzun, Angela Mauro, Eleonora Fanti, Fabio Voller, Franca Rusconi, Fernando Garcia-Rodriguez, Ana V. Villarreal-Treviño, Angel J. Flores-Pineda, Paola B. Lara-Herrea, Diego R. Salinas-Encinas, Talia Diaz-Prieto, Maria R. Maldonado-Velazquez, Sarbelio Moreno-Espinosa, Enrique Faugier-Fuentes, Mirella Crapanzano, Ilaria Parissenti, Man S. Parihar, Pandiarajan Vignesh, ManojKumar Rohit, Kavitha Gopalan, Savita V. Attri, Alan Salama, David Jayne, Mark Little, Yulia Kostina, Galina Lyskina, Olga Shpitonkova, Alena Torbyak, Olga Shirinsky, Maria Francesca Gicchino, Maria Cristina Smaldone, Mario Diplomatico, Alma Nunzia Olivieri, C H. Spencer, Richard McClead, Hiren Patel, Chung-Yung Yu, Dita Cebecauerová, Tomáš Dallos, Edita Kabíčková, Martin Kynčl, Daniela Chroustová, Jozef Hoza, Dana Němcová, Vladimír Tesař, Pavla Doležalová, Tuncay Hazirolan, Fatih Ozaltin, Fabiola Almeida, Isabela H. Faria de Paula, Maíra M. Sampaio, Fernando N. Arita, Andressa G. Alves, Maria Carolina Santos, Eunice M. Okuda, Silvana B. Sacchetti, Fernanda Falcini, Marini Francesca, Gemma Lepri, Marco Matucci-Cerinic, Maria Luisa Brandi, Hakan Kisaoglu, Sema Misir, Selim Demir, Yuksel Aliyazicioglu, Mukaddes Kalyoncu, Carlos Eduardo Ramalho, Fabiola D. Almeida, Joan Calzada-Hernández, Rosa Bou, Estíbaliz Iglesias, Judith Sánchez-Manubens, Fredy Hermógenes Prada Martínez, Clara Giménez Roca, Sergi Borlan Fernández, Marek Bohm, Kamran Mahmood, Valentina Leone, Mark Wood, Ken-Ichi Yamaguchi, Satoshi Fujikawa, Working Group of Behçet’s Disease, Pediatric Rheumatology Association of Japan (PRAJ), Kyu Yeun Kim, Do Young Kim, Dong Soo Kim, Maka Ioseliani, Ivane Chkhaidze, Maia Lekishvili, Nana Tskhakaia, Shorena Tvalabeishvili, Aleksandre Kajrishvili, Maiko Takakura, Masaki Shimizu, Natsumi Inoue, Mao Mizuta, Akihiro Yachie, Giovanni Corsello, Maryam Piram, Carla Maldini, Sandra Biscardi, Nathalie Desuremain, Catherine Orzechowski, Emilie Georget, Delphine Regnard, Isabelle Kone-Paut, Alfred Mahr, Mihaela Sparchez, Zeno Sparchez, Nydia Acevedo Silva, Ana V. Villarreal Treviño, Yuridiana Ramirez Loyola, Talia Diaz Prieto, Enrique Faugier Fuentes, Maria D. R. Maldonado Velazquez, Pilar Perez, Sagar Bhattad, Ranjana Minz, Jitendra Shandilya, Pediatric Allergy and Immunology Unit, PGIMER, Chandigarh, Ana Villarreal, Yuridiana Ramírez, Zeynep Birsin Özçakar, Suat Fitoz, Fatos Yalcinkaya, Annacarin Horne, Francesca Minoia, Francesca Bovis, Sergio Davi, Priyankar Pal, Kimo Stein, Sandra Enciso, Michael Jeng, Despoina Maritsi, Randy C. Cron, Anne Thorwarth, Sae Lim von Stuckrad, Angela Rösen-Wolff, Hella Luksch, Patrick Hundsdoerfer, Peter Krawitz, Nuray Aktay Ayaz, Doğan Simsek, Şebnem Sara Kılıc, Emine Sonmez, Aysenur Pac Kisaarslan, Ozge Altug Gucenmez, Z. Serap Arıcı, Fatih Kelesoglu, Zelal Ekinci Ekinci, Maria Miranda-Garcia, Carolin Pretzer, Michael Frosch, F. Gohar, Angela McArdle, Niamh Callan, Belinda Hernandez, Miha Lavric, Oliver FitzGerald, Stephen R. Pennington, Joachim Peitz, Joern Kekow, Ariane Klein, Anna C. Schulz, Frank Weller-Heinemann, Anton Hospach, J-Peter Haas, BIKER collaborative group, Karen Put, Jessica Vandenhaute, Anneleen Avau, Annemarie van Nieuwenhuijze, Ellen Brisse, Tim Dierckx, Omer Rutgeerts, Josselyn E. Garcia-Perez, Jaan Toelen, Mark Waer, Georges Leclercq, An Goris, Johan Van Weyenbergh, Adrian Liston, Patrick Matthys, Carine H. Wouters, Yasuo Nakagishi, Michael J. Ombrello, Victoria Arthur, Anne Hinks, Patricia Woo, International Childhood Arthritis Genetics (INCHARGE) Consortium, Barbara Stanimirovic, Biljana Djurdjevic-Banjac, Olivera Ljuboja, Boris Hugle, MArgarita Onoufriou, Olga Vougiouka, Kenza Bouayed, Sanae El Hani, Imane Hafid, Nabiha Mikou, Nunu Shelia, Mari Laan, Jaanika Ilisson, and Chris Pruunsild

Subjects
Pediatrics, RJ1-570, Diseases of the musculoskeletal system, RC925-935
Published
2017
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9. The Full Picture of Ulcerative Colitis: The Burden, the Patient, the Treatment

Author

Julián Panés, Edouard Louis, and Paul Rutgeerts

Subjects
UEG Week, United European Gastroenterology Week, Diseases of the digestive system. Gastroenterology, RC799-869
Abstract

Ulcerative colitis (UC) carries a significant, progressive disease burden that is often underestimated or misinterpreted by healthcare providers. Adverse outcomes have a major impact on patient quality of life, with a significant burden of symptoms both during and between inflammation flares. Chronic, uncontrolled disease leads to epithelial fibrosis and ‘lead pipe’ colon, dysplasia, and potential colonic cancer. Healthcare providers and patients share similar treatment goals, even if these are not verbalised in the same way, and clinicians need to fully understand the issues most important to patients. Understanding and collaboration can improve identification of meaningful treatment goals and overall disease management. In real-world practice, patients should be categorised according to disease characteristics and prognosis, and managed with appropriate, optimised therapies. Early, top-down management should be implemented in high-risk patients and all patient-centric therapeutic decisions made within the context of a full benefit/risk assessment.

Published
2015

24. Magnetic resonance enterography is feasible and reliable in multicenter clinical trials in patients with Crohnʼs disease, and may help select subjects with active inflammation

Author

Coimbra, A. J. F., Rimola, J., OʼByrne, S., Lu, T. T., Bengtsson, T., de Crespigny, A., Luca, D., Rutgeerts, P., Bruining, D. H., Fidler, J. L., Sandborn, W. J., Santillan, C. S., Higgins, P. D. R., Al-Hawary, M. M., Vermeire, S., Vanbeckevoort, D., Vanslembrouck, R., Peyrin-Biroulet, L., Laurent, V., Herrmann, K. A., and Panes, J.

Published
2016
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27. Comparative performances of machine learning methods for classifying Crohn Disease patients using genome-wide genotyping data

Author

Romagnoni, A., Jegou, S., Van Steen, K., Wainrib, G., Hugot, J. -P., Peyrin-Biroulet, L., Chamaillard, M., Colombel, J. -F., Cottone, M., D'Amato, M., D'Inca, R., Halfvarson, J., Henderson, P., Karban, A., Kennedy, N. A., Khan, M. A., Lemann, M., Levine, A., Massey, D., Milla, M., S. M. E., Ng, Oikonomou, I., Peeters, H., Proctor, D. D., Rahier, J. -F., Rutgeerts, P., Seibold, F., Stronati, L., Taylor, K. M., Torkvist, L., Ublick, K., Van Limbergen, J., Van Gossum, A., Vatn, M. H., Zhang, H., Zhang, W., Andrews, J. M., Bampton, P. A., Barclay, M., Florin, T. H., Gearry, R., Krishnaprasad, K., Lawrance, I. C., Mahy, G., Montgomery, G. W., Radford-Smith, G., Roberts, R. L., Simms, L. A., Hanigan, K., Croft, A., Amininijad, L., Cleynen, I., Dewit, O., Franchimont, D., Georges, M., Laukens, D., Theatre, E., Vermeire, S., Aumais, G., Baidoo, L., Barrie, A. M., Beck, K., Bernard, E. -J., Binion, D. G., Bitton, A., Brant, S. R., Cho, J. H., Cohen, A., Croitoru, K., Daly, M. J., Datta, L. W., Deslandres, C., Duerr, R. H., Dutridge, D., Ferguson, J., Fultz, J., Goyette, P., Greenberg, G. R., Haritunians, T., Jobin, G., Katz, S., Lahaie, R. G., Mcgovern, D. P., Nelson, L., S. M., Ng, Ning, K., Pare, P., Regueiro, M. D., Rioux, J. D., Ruggiero, E., Schumm, L. P., Schwartz, M., Scott, R., Sharma, Y., Silverberg, M. S., Spears, D., Steinhart, A. H., Stempak, J. M., Swoger, J. M., Tsagarelis, C., Zhang, C., Zhao, H., Aerts, J., Ahmad, T., Arbury, H., Attwood, A., Auton, A., Ball, S. G., Balmforth, A. J., Barnes, C., Barrett, J. C., Barroso, I., Barton, A., Bennett, A. J., Bhaskar, S., Blaszczyk, K., Bowes, J., Brand, O. J., Braund, P. S., Bredin, F., Breen, G., Brown, M. J., Bruce, I. N., Bull, J., Burren, O. S., Burton, J., Byrnes, J., Caesar, S., Cardin, N., Clee, C. M., Coffey, A. J., MC Connell, J., Conrad, D. F., Cooper, J. D., Dominiczak, A. F., Downes, K., Drummond, H. E., Dudakia, D., Dunham, A., Ebbs, B., Eccles, D., Edkins, S., Edwards, C., Elliot, A., Emery, P., Evans, D. M., Evans, G., Eyre, S., Farmer, A., Ferrier, I. N., Flynn, E., Forbes, A., Forty, L., Franklyn, J. A., Frayling, T. M., Freathy, R. M., Giannoulatou, E., Gibbs, P., Gilbert, P., Gordon-Smith, K., Gray, E., Green, E., Groves, C. J., Grozeva, D., Gwilliam, R., Hall, A., Hammond, N., Hardy, M., Harrison, P., Hassanali, N., Hebaishi, H., Hines, S., Hinks, A., Hitman, G. A., Hocking, L., Holmes, C., Howard, E., Howard, P., Howson, J. M. M., Hughes, D., Hunt, S., Isaacs, J. D., Jain, M., Jewell, D. P., Johnson, T., Jolley, J. D., Jones, I. R., Jones, L. A., Kirov, G., Langford, C. F., Lango-Allen, H., Lathrop, G. M., Lee, J., Lee, K. L., Lees, C., Lewis, K., Lindgren, C. M., Maisuria-Armer, M., Maller, J., Mansfield, J., Marchini, J. L., Martin, P., Massey, D. C., Mcardle, W. L., Mcguffin, P., Mclay, K. E., Mcvean, G., Mentzer, A., Mimmack, M. L., Morgan, A. E., Morris, A. P., Mowat, C., Munroe, P. B., Myers, S., Newman, W., Nimmo, E. R., O'Donovan, M. C., Onipinla, A., Ovington, N. R., Owen, M. J., Palin, K., Palotie, A., Parnell, K., Pearson, R., Pernet, D., Perry, J. R., Phillips, A., Plagnol, V., Prescott, N. J., Prokopenko, I., Quail, M. A., Rafelt, S., Rayner, N. W., Reid, D. M., Renwick, A., Ring, S. M., Robertson, N., Robson, S., Russell, E., Clair, D. S., Sambrook, J. G., Sanderson, J. D., Sawcer, S. J., Schuilenburg, H., Scott, C. E., Seal, S., Shaw-Hawkins, S., Shields, B. M., Simmonds, M. J., Smyth, D. J., Somaskantharajah, E., Spanova, K., Steer, S., Stephens, J., Stevens, H. E., Stirrups, K., Stone, M. A., Strachan, D. P., Su, Z., Symmons, D. P. M., Thompson, J. R., Thomson, W., Tobin, M. D., Travers, M. E., Turnbull, C., Vukcevic, D., Wain, L. V., Walker, M., Walker, N. M., Wallace, C., Warren-Perry, M., Watkins, N. A., Webster, J., Weedon, M. N., Wilson, A. G., Woodburn, M., Wordsworth, B. P., Yau, C., Young, A. H., Zeggini, E., Brown, M. A., Burton, P. R., Caulfield, M. J., Compston, A., Farrall, M., Gough, S. C. L., Hall, A. S., Hattersley, A. T., Hill, A. V. S., Mathew, C. G., Pembrey, M., Satsangi, J., Stratton, M. R., Worthington, J., Hurles, M. E., Duncanson, A., Ouwehand, W. H., Parkes, M., Rahman, N., Todd, J. A., Samani, N. J., Kwiatkowski, D. P., Mccarthy, M. I., Craddock, N., Deloukas, P., Donnelly, P., Blackwell, J. M., Bramon, E., Casas, J. P., Corvin, A., Jankowski, J., Markus, H. S., Palmer, C. N., Plomin, R., Rautanen, A., Trembath, R. C., Viswanathan, A. C., Wood, N. W., Spencer, C. C. A., Band, G., Bellenguez, C., Freeman, C., Hellenthal, G., Pirinen, M., Strange, A., Blackburn, H., Bumpstead, S. J., Dronov, S., Gillman, M., Jayakumar, A., Mccann, O. T., Liddle, J., Potter, S. C., Ravindrarajah, R., Ricketts, M., Waller, M., Weston, P., Widaa, S., Whittaker, P., Romagnoni, A., Jegou, S., Van Steen, K., Wainrib, G., Hugot, J. -P., Peyrin-Biroulet, L., Chamaillard, M., Colombel, J. -F., Cottone, M., D'Amato, M., D'Inca, R., Halfvarson, J., Henderson, P., Karban, A., Kennedy, N. A., Khan, M. A., Lemann, M., Levine, A., Massey, D., Milla, M., Ng, S. M. E., Oikonomou, I., Peeters, H., Proctor, D. D., Rahier, J. -F., Rutgeerts, P., Seibold, F., Stronati, L., Taylor, K. M., Torkvist, L., Ublick, K., Van Limbergen, J., Van Gossum, A., Vatn, M. H., Zhang, H., Zhang, W., Andrews, J. M., Bampton, P. A., Barclay, M., Florin, T. H., Gearry, R., Krishnaprasad, K., Lawrance, I. C., Mahy, G., Montgomery, G. W., Radford-Smith, G., Roberts, R. L., Simms, L. A., Hanigan, K., Croft, A., Amininijad, L., Cleynen, I., Dewit, O., Franchimont, D., Georges, M., Laukens, D., Theatre, E., Vermeire, S., Aumais, G., Baidoo, L., Barrie, A. M., Beck, K., Bernard, E. -J., Binion, D. G., Bitton, A., Brant, S. R., Cho, J. H., Cohen, A., Croitoru, K., Daly, M. J., Datta, L. W., Deslandres, C., Duerr, R. H., Dutridge, D., Ferguson, J., Fultz, J., Goyette, P., Greenberg, G. R., Haritunians, T., Jobin, G., Katz, S., Lahaie, R. G., Mcgovern, D. P., Nelson, L., Ng, S. M., Ning, K., Pare, P., Regueiro, M. D., Rioux, J. D., Ruggiero, E., Schumm, L. P., Schwartz, M., Scott, R., Sharma, Y., Silverberg, M. S., Spears, D., Steinhart, A. H., Stempak, J. M., Swoger, J. M., Tsagarelis, C., Zhang, C., Zhao, H., Aerts, J., Ahmad, T., Arbury, H., Attwood, A., Auton, A., Ball, S. G., Balmforth, A. J., Barnes, C., Barrett, J. C., Barroso, I., Barton, A., Bennett, A. J., Bhaskar, S., Blaszczyk, K., Bowes, J., Brand, O. J., Braund, P. S., Bredin, F., Breen, G., Brown, M. J., Bruce, I. N., Bull, J., Burren, O. S., Burton, J., Byrnes, J., Caesar, S., Cardin, N., Clee, C. M., Coffey, A. J., MC Connell, J., Conrad, D. F., Cooper, J. D., Dominiczak, A. F., Downes, K., Drummond, H. E., Dudakia, D., Dunham, A., Ebbs, B., Eccles, D., Edkins, S., Edwards, C., Elliot, A., Emery, P., Evans, D. M., Evans, G., Eyre, S., Farmer, A., Ferrier, I. N., Flynn, E., Forbes, A., Forty, L., Franklyn, J. A., Frayling, T. M., Freathy, R. M., Giannoulatou, E., Gibbs, P., Gilbert, P., Gordon-Smith, K., Gray, E., Green, E., Groves, C. J., Grozeva, D., Gwilliam, R., Hall, A., Hammond, N., Hardy, M., Harrison, P., Hassanali, N., Hebaishi, H., Hines, S., Hinks, A., Hitman, G. A., Hocking, L., Holmes, C., Howard, E., Howard, P., Howson, J. M. M., Hughes, D., Hunt, S., Isaacs, J. D., Jain, M., Jewell, D. P., Johnson, T., Jolley, J. D., Jones, I. R., Jones, L. A., Kirov, G., Langford, C. F., Lango-Allen, H., Lathrop, G. M., Lee, J., Lee, K. L., Lees, C., Lewis, K., Lindgren, C. M., Maisuria-Armer, M., Maller, J., Mansfield, J., Marchini, J. L., Martin, P., Massey, D. C., Mcardle, W. L., Mcguffin, P., Mclay, K. E., Mcvean, G., Mentzer, A., Mimmack, M. L., Morgan, A. E., Morris, A. P., Mowat, C., Munroe, P. B., Myers, S., Newman, W., Nimmo, E. R., O'Donovan, M. C., Onipinla, A., Ovington, N. R., Owen, M. J., Palin, K., Palotie, A., Parnell, K., Pearson, R., Pernet, D., Perry, J. R., Phillips, A., Plagnol, V., Prescott, N. J., Prokopenko, I., Quail, M. A., Rafelt, S., Rayner, N. W., Reid, D. M., Renwick, A., Ring, S. M., Robertson, N., Robson, S., Russell, E., Clair, D. S., Sambrook, J. G., Sanderson, J. D., Sawcer, S. J., Schuilenburg, H., Scott, C. E., Seal, S., Shaw-Hawkins, S., Shields, B. M., Simmonds, M. J., Smyth, D. J., Somaskantharajah, E., Spanova, K., Steer, S., Stephens, J., Stevens, H. E., Stirrups, K., Stone, M. A., Strachan, D. P., Su, Z., Symmons, D. P. M., Thompson, J. R., Thomson, W., Tobin, M. D., Travers, M. E., Turnbull, C., Vukcevic, D., Wain, L. V., Walker, M., Walker, N. M., Wallace, C., Warren-Perry, M., Watkins, N. A., Webster, J., Weedon, M. N., Wilson, A. G., Woodburn, M., Wordsworth, B. P., Yau, C., Young, A. H., Zeggini, E., Brown, M. A., Burton, P. R., Caulfield, M. J., Compston, A., Farrall, M., Gough, S. C. L., Hall, A. S., Hattersley, A. T., Hill, A. V. S., Mathew, C. G., Pembrey, M., Satsangi, J., Stratton, M. R., Worthington, J., Hurles, M. E., Duncanson, A., Ouwehand, W. H., Parkes, M., Rahman, N., Todd, J. A., Samani, N. J., Kwiatkowski, D. P., Mccarthy, M. I., Craddock, N., Deloukas, P., Donnelly, P., Blackwell, J. M., Bramon, E., Casas, J. P., Corvin, A., Jankowski, J., Markus, H. S., Palmer, C. N., Plomin, R., Rautanen, A., Trembath, R. C., Viswanathan, A. C., Wood, N. W., Spencer, C. C. A., Band, G., Bellenguez, C., Freeman, C., Hellenthal, G., Pirinen, M., Strange, A., Blackburn, H., Bumpstead, S. J., Dronov, S., Gillman, M., Jayakumar, A., Mccann, O. T., Liddle, J., Potter, S. C., Ravindrarajah, R., Ricketts, M., Waller, M., Weston, P., Widaa, S., Whittaker, P., Daly, Mark J. [0000-0002-0949-8752], Apollo - University of Cambridge Repository, Hugot, Jean-Pierre [0000-0002-8446-6056], UCL - SSS/IREC/GAEN - Pôle d'Hépato-gastro-entérologie, UCL - (MGD) Service de gastro-entérologie, Romagnoni, A, Jegou, S, VAN STEEN, Kristel, Wainrib, G, Hugot, JP, Peyrin-Biroulet, L, Chamaillard, M, Colombel, JF, Cottone, M, D'Amato, M, D'Inca, R, Halfvarson, J, Henderson, P, Karban, A, Kennedy, NA, Khan, MA, Lemann, M, Levine, A, Massey, D, Milla, M, Ng, SME, Oikonomou, I, Peeters, H, Proctor, DD, Rahier, JF, Rutgeerts, P, Seibold, F, Stronati, L, Taylor, KM, Torkvist, L, Ublick, K, Van Limbergen, J, Van Gossum, A, Vatn, MH, Zhang, H, Zhang, W, Andrews, JM, Bampton, PA, Barclay, M, Florin, TH, Gearry, R, Krishnaprasad, K, Lawrance, IC, Mahy, G, Montgomery, GW, Radford-Smith, G, Roberts, RL, Simms, LA, Hanigan, K, Croft, A, Amininijad, L, Cleynen, I, Dewit, O, Franchimont, D, Georges, M, Laukens, D, Theatre, E, Vermeire, S, Aumais, G, Baidoo, L, Barrie, AM, Beck, K, Bernard, EJ, Binion, DG, Bitton, A, Brant, SR, Cho, JH, Cohen, A, Croitoru, K, Daly, MJ, Datta, LW, Deslandres, C, Duerr, RH, Dutridge, D, Ferguson, J, Fultz, J, Goyette, P, Greenberg, GR, Haritunians, T, Jobin, G, Katz, S, Lahaie, RG, McGovern, DP, Nelson, L, Ng, SM, Ning, K, Pare, P, Regueiro, MD, Rioux, JD, Ruggiero, E, Schumm, LP, Schwartz, M, Scott, R, Sharma, Y, Silverberg, MS, Spears, D, Steinhart, AH, Stempak, JM, Swoger, JM, Tsagarelis, C, Zhang, C, Zhao, HY, AERTS, Jan, Ahmad, T, Arbury, H, Attwood, A, Auton, A, Ball, SG, Balmforth, AJ, Barnes, C, Barrett, JC, Barroso, I, Barton, A, Bennett, AJ, Bhaskar, S, Blaszczyk, K, Bowes, J, Brand, OJ, Braund, PS, Bredin, F, Breen, G, Brown, MJ, Bruce, IN, Bull, J, Burren, OS, Burton, J, Byrnes, J, Caesar, S, Cardin, N, Clee, CM, Coffey, AJ, Mc Connell, J, Conrad, DF, Cooper, JD, Dominiczak, AF, Downes, K, Drummond, HE, Dudakia, D, Dunham, A, Ebbs, B, Eccles, D, Edkins, S, Edwards, C, Elliot, A, Emery, P, Evans, DM, Evans, G, Eyre, S, Farmer, A, Ferrier, IN, Flynn, E, Forbes, A, Forty, L, Franklyn, JA, Frayling, TM, Freathy, RM, Giannoulatou, E, Gibbs, P, Gilbert, P, Gordon-Smith, K, Gray, E, Green, E, Groves, CJ, Grozeva, D, Gwilliam, R, Hall, A, Hammond, N, Hardy, M, Harrison, P, Hassanali, N, Hebaishi, H, Hines, S, Hinks, A, Hitman, GA, Hocking, L, Holmes, C, Howard, E, Howard, P, Howson, JMM, Hughes, D, Hunt, S, Isaacs, JD, Jain, M, Jewell, DP, Johnson, T, Jolley, JD, Jones, IR, Jones, LA, Kirov, G, Langford, CF, Lango-Allen, H, Lathrop, GM, Lee, J, Lee, KL, Lees, C, Lewis, K, Lindgren, CM, Maisuria-Armer, M, Maller, J, Mansfield, J, Marchini, JL, Martin, P, Massey, DCO, McArdle, WL, McGuffin, P, McLay, KE, McVean, G, Mentzer, A, Mimmack, ML, Morgan, AE, Morris, AP, Mowat, C, Munroe, PB, Myers, S, Newman, W, Nimmo, ER, O'Donovan, MC, Onipinla, A, Ovington, NR, Owen, MJ, Palin, K, Palotie, A, Parnell, K, Pearson, R, Pernet, D, Perry, JRB, Phillips, A, Plagnol, V, Prescott, NJ, Prokopenko, I, Quail, MA, Rafelt, S, Rayner, NW, Reid, DM, Renwick, A, Ring, SM, Robertson, N, Robson, S, Russell, E, St Clair, D, Sambrook, JG, Sanderson, JD, Sawcer, SJ, Schuilenburg, H, Scott, CE, Seal, S, Shaw-Hawkins, S, Shields, BM, Simmonds, MJ, Smyth, DJ, Somaskantharajah, E, Spanova, K, Steer, S, Stephens, J, Stevens, HE, Stirrups, K, Stone, MA, Strachan, DP, Su, Z, Symmons, DPM, Thompson, JR, Thomson, W, Tobin, MD, Travers, ME, Turnbull, C, Vukcevic, D, Wain, LV, Walker, M, Walker, NM, Wallace, C, Warren-Perry, M, Watkins, NA, Webster, J, Weedon, MN, Wilson, AG, Woodburn, M, Wordsworth, BP, Yau, C, Young, AH, Zeggini, E, Brown, MA, Burton, PR, Caulfield, MJ, Compston, A, Farrall, M, Gough, SCL, Hall, AS, Hattersley, AT, Hill, AVS, Mathew, CG, Pembrey, M, Satsangi, J, Stratton, MR, Worthington, J, Hurles, ME, Duncanson, A, Ouwehand, WH, Parkes, M, Rahman, N, Todd, JA, Samani, NJ, Kwiatkowski, DP, McCarthy, MI, Craddock, N, Deloukas, P, Donnelly, P, Blackwell, JM, Bramon, E, Casas, JP, Corvin, A, Jankowski, J, Markus, HS, Palmer, CNA, Plomin, R, Rautanen, A, Trembath, RC, Viswanathan, AC, Wood, NW, Spencer, CCA, Band, G, Bellenguez, C, Freeman, C, Hellenthal, G, Pirinen, M, Strange, A, Blackburn, H, Bumpstead, SJ, Dronov, S, Gillman, M, Jayakumar, A, McCann, OT, Liddle, J, Potter, SC, Ravindrarajah, R, Ricketts, M, Waller, M, Weston, P, Widaa, S, Whittaker, P, and Kwiatkowski, D

Subjects
Male, 692/4020/1503/257/1402, Genotype, Genotyping Techniques, LOCI, 45/43, lcsh:Medicine, Polymorphism, Single Nucleotide, Crohn's disease, genetics, genome wide association, Article, Deep Learning, Crohn Disease, INDEL Mutation, Genetics research, Humans, genetics, Genetic Predisposition to Disease, 129, lcsh:Science, Alleles, Science & Technology, genome wide association, RISK PREDICTION, 45, Models, Genetic, lcsh:R, Decision Trees, 692/308/2056, ASSOCIATION, Multidisciplinary Sciences, Crohn's disease, Logistic Models, Nonlinear Dynamics, ROC Curve, Area Under Curve, Science & Technology - Other Topics, lcsh:Q, Female, Neural Networks, Computer, INFLAMMATORY-BOWEL-DISEASE, Genome-Wide Association Study
Abstract

Crohn Disease (CD) is a complex genetic disorder for which more than 140 genes have been identified using genome wide association studies (GWAS). However, the genetic architecture of the trait remains largely unknown. The recent development of machine learning (ML) approaches incited us to apply them to classify healthy and diseased people according to their genomic information. The Immunochip dataset containing 18,227 CD patients and 34,050 healthy controls enrolled and genotyped by the international Inflammatory Bowel Disease genetic consortium (IIBDGC) has been re-analyzed using a set of ML methods: penalized logistic regression (LR), gradient boosted trees (GBT) and artificial neural networks (NN). The main score used to compare the methods was the Area Under the ROC Curve (AUC) statistics. The impact of quality control (QC), imputing and coding methods on LR results showed that QC methods and imputation of missing genotypes may artificially increase the scores. At the opposite, neither the patient/control ratio nor marker preselection or coding strategies significantly affected the results. LR methods, including Lasso, Ridge and ElasticNet provided similar results with a maximum AUC of 0.80. GBT methods like XGBoost, LightGBM and CatBoost, together with dense NN with one or more hidden layers, provided similar AUC values, suggesting limited epistatic effects in the genetic architecture of the trait. ML methods detected near all the genetic variants previously identified by GWAS among the best predictors plus additional predictors with lower effects. The robustness and complementarity of the different methods are also studied. Compared to LR, non-linear models such as GBT or NN may provide robust complementary approaches to identify and classify genetic markers. Tis work was supported by Fondation pour la Recherche Médical (ref DEI20151234405) and Investissements d’Avenir programme ANR-11-IDEX-0005-02, Sorbonne Paris Cite, Laboratoire d’excellence INFLAMEX. Te authors thank the students that participated to the wisdom of the crowd exercise.

Published
2019

31. Integrated miRNA and mRNA expression profiling in inflamed colon of patients with ulcerative colitis.

Author

Jan Van der Goten, Wiebe Vanhove, Katleen Lemaire, Leentje Van Lommel, Kathleen Machiels, Willem-Jan Wollants, Vicky De Preter, Gert De Hertogh, Marc Ferrante, Gert Van Assche, Paul Rutgeerts, Frans Schuit, Séverine Vermeire, and Ingrid Arijs

Subjects
Medicine, Science
Abstract

BACKGROUND: Ulcerative colitis (UC) is associated with differential colonic expression of genes involved in immune response (e.g. IL8) and barrier integrity (e.g. cadherins). MicroRNAs (miRNAs) are regulators of gene expression and are involved in various immune-related diseases. In this study, we investigated (1) if miRNA expression in UC mucosa is altered and (2) if any of these changes correlate with mucosal mRNA expression. Integration of mRNA and miRNA expression profiling may allow the identification of functional links between dysregulated miRNAs and their target mRNA. METHODOLOGY: Colonic mucosal biopsies were obtained from 17 UC (10 active and 7 inactive) patients and 10 normal controls. Total RNA was used to analyze miRNA and mRNA expression via Affymetrix miRNA 2.0 and Affymetrix Human Gene 1.0ST arrays, respectively. Both miRNA and gene expression profiles were integrated by correlation analysis to identify dysregulated miRNAs with their corresponding predicted target mRNA. Microarray data were validated with qRT-PCR. Regulation of IL8 and CDH11 expression by hsa-miR-200c-3p was determined by luciferase reporter assays. RESULTS: When comparing active UC patients vs. controls, 51 miRNAs and 1543 gene probe sets gave significantly different signals. In contrast, in inactive UC vs. controls, no significant miRNA expression differences were found while 155 gene probe sets had significantly different signals. We then identified potential target genes of the significantly dysregulated miRNAs and genes in active UC vs. controls and found a highly significant inverse correlation between hsa-miR-200c-3p and IL8, an inflammatory marker, and between hsa-miR-200c-3p and CDH11, a gene related to intestinal epithelial barrier function. We could demonstrate that hsa-miR-200c-3p directly regulates IL8 and CDH11 expression. CONCLUSION: Differential expression of immune- and barrier-related genes in inflamed UC mucosa may be influenced by altered expression of miRNAs. Integrated analysis of miRNA and mRNA expression profiles revealed hsa-miR-200c-3p for use of miRNA mimics as therapeutics.

Published
2014
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34. Dysplasia in Inflammatory Bowel Diseases: Definition and Clinical Impact

Author

Karel Geboes and Paul Rutgeerts

Subjects
Diseases of the digestive system. Gastroenterology, RC799-869
Abstract

Dysplasia is a morphological term that ethymologically means ‘malformation’. For the definition of inflammatory bowel disease-related dysplasia, the nature and origin of the malformation are stressed and the lesion is defined as an epithelial malformation that is unequivocally neoplastic but noninvasive. The use of a precise definition is necessary because of the clinical consequences related to the finding of dysplasia in IBD. The microscopic diagnosis of dysplasia, however, remains difficult. Clinically, it is important to make a proper differential diagnosis between polypoid IBD-related dysplasia and sporadic adenoma occurring in IBD, and between therapy-related ‘pseudodysplasia’ and genuine dysplasia. When dysplasia is diagnosed, a second opinion may be indicated because of the clinical consequences. Additional techniques to search for genetic defects associated with carcinogenesis can help to support the diagnosis. They can identify changes in DNA content and molecular changes resulting from defects of genes controlling cell proliferation and death or tissue structure. These changes can, however, be absent, appear early or late in the transition from normality toward dysplasia and cancer, or appear during repair. Positive findings indicate an increased cancer risk, but the magnitude of the risk remains to be defined. A positive diagnosis of genuine dysplasia necessitates clinical action – either follow-up of the patient or treatment. In practice, treatment means surgery because dysplasia can be a precursor and/or a marker of malignancy, except for sporadic adenomas, which can be removed locally.

Published
1999
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37. The use of oral topically acting glucocorticosteroids in the treatment of inflammatory bowel disease

Author

P. Rutgeerts

Subjects
glucocorticosteroids, Crohn's disease, ulcerative colitis, budesomide, prednisolone, remission., Pathology, RB1-214
Abstract

Glucocorticosteroids are the mainstay of treatment of active Crohn's disease and ulcerative colitis. These drugs however carry important cosmetic short-term side effects and when used long-term they induce severe irreversible complications. Topically acting glucocorticosteroids, especially budesonide, have been designed to achieve local effect at the site of inflammation without systemic effects of the drug. The first results of clinical trials are promising and budesonide has been shown to have an improved safety with almost comparable efficacy in comparison with prednisolone. The optimal enema dose seems to be 2 mg/100 ml at night whereas 9 mg o.m. is the optimal dose to treat ileal or right ileocolonic Crohn's disease. Topically acting GCS, like standard GCS are not effective for maintenance of remission of Crohn's disease or recurrence prevention after resection of the involved Crohn's segment.

Published
1998
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39. Significant Differences Between Crohn’s Disease and Ulcerative Colitis Regarding the Impact of Body Mass Index and Initial Disease Activity on Responsiveness to Azathioprine: Results from a European Multicenter Study in 1,176 Patients

Author

Holtmann, Martin H., Krummenauer, Frank, Claas, Christina, Kremeyer, Kristina, Lorenz, Dirk, Rainer, Olivia, Vogel, Iris, Böcker, Ulrich, Böhm, Stephan, Büning, Carsten, Duchmann, Rainer, Gerken, Guido, Herfarth, Hans, Lügering, Norbert, Kruis, Wolfgang, Reinshagen, Max, Schmidt, Jan, Stallmach, Andreas, Stein, Jürgen, Sturm, Andreas, Galle, Peter R., Hommes, Daan W., D’Haens, Geert, Rutgeerts, Paul, and Neurath, Markus F.

Published
2010
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40. Long-term outcome of endoscopic dilatation in patients with Crohn's disease is not affected by disease activity or medical therapy

Author

Van Assche, G., Thienpont, C., D'Hoore, A., Vermeire, S., Demedts, I., Bisschops, R., Coremans, G., and Rutgeerts, P.

Subjects
Crohn's disease -- Care and treatment, Crohn's disease -- Patient outcomes, Crohn's disease -- Research, Balloon dilatation -- Patient outcomes, Balloon dilatation -- Research, Fibrosis -- Risk factors, Fibrosis -- Research, Health
Published
2010

48. Unique gene expression and MR T2 relaxometry patterns define chronic murine dextran sodium sulphate colitis as a model for connective tissue changes in human Crohn's disease.

Author

Christine Breynaert, Tom Dresselaers, Clémentine Perrier, Ingrid Arijs, Jonathan Cremer, Leentje Van Lommel, Kristel Van Steen, Marc Ferrante, Frans Schuit, Séverine Vermeire, Paul Rutgeerts, Uwe Himmelreich, Jan L Ceuppens, Karel Geboes, and Gert Van Assche

Subjects
Medicine, Science
Abstract

INTRODUCTION: Chronically relapsing inflammation, tissue remodeling and fibrosis are hallmarks of inflammatory bowel diseases. The aim of this study was to investigate changes in connective tissue in a chronic murine model resulting from repeated cycles of dextran sodium sulphate (DSS) ingestion, to mimic the relapsing nature of the human disease. MATERIALS AND METHODS: C57BL/6 mice were exposed to DSS in drinking water for 1 week, followed by a recovery phase of 2 weeks. This cycle of exposure was repeated for up to 3 times (9 weeks in total). Colonic inflammation, fibrosis, extracellular matrix proteins and colonic gene expression were studied. In vivo MRI T 2 relaxometry was studied as a potential non-invasive imaging tool to evaluate bowel wall inflammation and fibrosis. RESULTS: Repeated cycles of DSS resulted in a relapsing and remitting disease course, which induced a chronic segmental, transmural colitis after 2 and 3 cycles of DSS with clear induction of fibrosis and remodeling of the muscular layer. Tenascin expression mirrored its expression in Crohn's colitis. Microarray data identified a gene expression profile different in chronic colitis from that in acute colitis. Additional recovery was associated with upregulation of unique genes, in particular keratins, pointing to activation of molecular pathways for healing and repair. In vivo MRI T2 relaxometry of the colon showed a clear shift towards higher T2 values in the acute stage and a gradual regression of T2 values with increasing cycles of DSS. CONCLUSIONS: Repeated cycles of DSS exposure induce fibrosis and connective tissue changes with typical features, as occurring in Crohn's disease. Colonic gene expression analysis revealed unique expression profiles in chronic colitis compared to acute colitis and after additional recovery, pointing to potential new targets to intervene with the induction of fibrosis. In vivo T2 relaxometry is a promising non-invasive assessment of inflammation and fibrosis.

Published
2013
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49. Mucosal gene signatures to predict response to infliximab in patients with ulcerative colitis

Author

Arijs, I., Li, K., Toedter, G., Quintens, R., Van Lommel, L., Van Steen, K., Leemans, P., De Hertogh, G., Lemaire, K., Ferrante, M., Schnitzler, F., Thorrez, L., Ma, K., Song, X.-Y.R., Marano, C., Van Assche, G., Vermeire, S., Geboes, K., Schuit, F., Baribaud, F., and Rutgeerts, P.

Subjects
Ulcerative colitis -- Care and treatment, Ulcerative colitis -- Genetic aspects, Ulcerative colitis -- Research, Infliximab -- Dosage and administration, Infliximab -- Research, Immune response -- Genetic aspects, Immune response -- Research, Health
Published
2009

50. Adalimumab for the treatment of fistulas in patients with Crohn's disease

Author

Colombel, J.-F., Schwartz, D.A., Sandborn, W.J., Kamm, M.A., D'Haens, G., Rutgeerts, P., Enns, R., Panaccione, R., Schreiber, S., Li, J., Kent, J.D., Lomax, K.G., and Pollack, P.F.

Subjects
Fistula -- Care and treatment, Fistula -- Research, Crohn's disease -- Care and treatment, Crohn's disease -- Research, Health
Published
2009

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