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Liefferinckx C, Hubert A, Thomas D, Bottieau J, Minsart C, Cremer A, Amininejad L, Vallée F, Toubeau JF, Franchimont D. Predictive models assessing the response to ustekinumab highlight the value of therapeutic drug monitoring in Crohn's disease. Dig Liver Dis 2023; 55:366-372. [PMID: 35977875 DOI: 10.1016/j.dld.2022.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/26/2022] [Accepted: 07/19/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Despite the therapeutic efficacy of Ustekinumab (UST) in Crohn's disease (CD), loss of response (LOR) is observed over time. This study aims to evaluate the impact of the UST pharmacokinetics (PK) at induction on clinical and endoscopic outcomes, as well as to find predictive markers of UST response. METHODS This retrospective study included 80 CD patients. Pharmacokinetics data (trough levels (TLs)) combined with clinical and biological parameters were fed into tailored logistic regression and tree-based ensemble techniques to predict clinical and endoscopic outcomes at one year of follow-up. RESULTS TLs at week 16 were significantly lower among patients with moderate to severe endoscopic activity during the follow-up (p = 0.04). The best model to predict endoscopic outcome was obtained at week 16 by Random Forest with an area under the receiver operating characteristic curve of 0.92 ± 0.08, sensitivity 91% and specificity 75%, with key inputs such as lymphocyte and monocyte counts at week 8, and UST TLs and CRP at week 16. CONCLUSIONS This real-world study confirms the relationship between early UST TLs and both clinical and endoscopic outcomes. Models were developed for the task of predicting clinical and endoscopic remission in CD patients treated with UST, highlighting the clinical relevance of UST TLs at week 16.
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Affiliation(s)
- Claire Liefferinckx
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, Brussels 1070, Belgium; Department of Gastroenterology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium.
| | - Antoine Hubert
- Department of Electrical Engineering, University of Mons, Mons, Belgium
| | - Debby Thomas
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Jérémie Bottieau
- Department of Electrical Engineering, University of Mons, Mons, Belgium
| | - Charlotte Minsart
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, Brussels 1070, Belgium; Department of Gastroenterology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Anneline Cremer
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, Brussels 1070, Belgium; Department of Gastroenterology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Leila Amininejad
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, Brussels 1070, Belgium; Department of Gastroenterology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - François Vallée
- Department of Electrical Engineering, University of Mons, Mons, Belgium
| | | | - Denis Franchimont
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, Brussels 1070, Belgium; Department of Gastroenterology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
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Cremer A, Ku J, Amininejad L, Bouvry MR, Brohet F, Liefferinckx C, Devière J, van Gossum A, Smet J, Stordeur P, Franchimont D. Variability of Faecal Calprotectin in Inflammatory Bowel Disease Patients: An Observational Case-control Study. J Crohns Colitis 2019; 13:1372-1379. [PMID: 30944925 DOI: 10.1093/ecco-jcc/jjz069] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Several factors have been reported to affect faecal calprotectin [FC] values, and significant variation in FC concentrations has been observed in inflammatory bowel disease [IBD] patients. We aimed to evaluate FC variability in IBD patients, and to assess the robustness of a single stool punch. METHODS This is a single-centre observational case-control study. Disease activity was assessed using endoscopic and clinical activity scores, as well as C-reactive protein levels. Stool samples were collected twice within a 1 to 6 days interval, and FC was measured on punches and homogenates by fluorometric enzyme immunocapture assay. RESULTS In all, 260 stool samples were collected from 120 patients. Intrastool variability was low, with an intraclass correlation coefficient for single measures between three punches from a single stool sample of 0.91, and median coefficient of variation [CV] of 17%. CV of two stool samples a few days apart [intra-individual variability] were significantly higher [p <0.01] with median CV of 36%. FC standard deviations correlated with mean FC levels either for intrastool or for intra-individual variability, with a Spearman's coefficient of rank correlation of 0.85 and 0.78, respectively [p <0.01]. Disease type, location, activity, and FC levels did not influence variability. CONCLUSIONS A single stool punch is reliable for FC measurement, considering that intrastool variability is low. Intra-individual variability a few days apart is significantly higher. Therefore, decision-making strategies based on single measurements should consider this variability, to determine the minimum optimal variation to be achieved, rather than a cut-off, especially in high FC levels.
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Affiliation(s)
- Anneline Cremer
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Brussels, Belgium.,Department of Gastroenterology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Jade Ku
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Brussels, Belgium
| | - Leila Amininejad
- Department of Gastroenterology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Marie-Rose Bouvry
- Immunobiology Clinic, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Fabian Brohet
- Immunobiology Clinic, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Claire Liefferinckx
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Brussels, Belgium
| | - Jacques Devière
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Brussels, Belgium.,Department of Gastroenterology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - André van Gossum
- Department of Gastroenterology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Julie Smet
- Immunobiology Clinic, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Patrick Stordeur
- Immunobiology Clinic, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Denis Franchimont
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Brussels, Belgium.,Department of Gastroenterology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
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Brouyère E, Amininejad L, Cremer A, Liefferinckx C, Minsart C, Devière J, Franchimont D, Van Gossum A. SUN-PO224: Prevalence of Malnutrition in a Cohort of Crohn’s Disease Patients According to the New GLIM Criteria. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32856-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Momozawa Y, Dmitrieva J, Théâtre E, Deffontaine V, Rahmouni S, Charloteaux B, Crins F, Docampo E, Elansary M, Gori AS, Lecut C, Mariman R, Mni M, Oury C, Altukhov I, Alexeev D, Aulchenko Y, Amininejad L, Bouma G, Hoentjen F, Löwenberg M, Oldenburg B, Pierik MJ, Vander Meulen-de Jong AE, Janneke van der Woude C, Visschedijk MC, Lathrop M, Hugot JP, Weersma RK, De Vos M, Franchimont D, Vermeire S, Kubo M, Louis E, Georges M. IBD risk loci are enriched in multigenic regulatory modules encompassing putative causative genes. Nat Commun 2018; 9:2427. [PMID: 29930244 PMCID: PMC6013502 DOI: 10.1038/s41467-018-04365-8] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 04/24/2018] [Indexed: 02/08/2023] Open
Abstract
GWAS have identified >200 risk loci for Inflammatory Bowel Disease (IBD). The majority of disease associations are known to be driven by regulatory variants. To identify the putative causative genes that are perturbed by these variants, we generate a large transcriptome data set (nine disease-relevant cell types) and identify 23,650 cis-eQTL. We show that these are determined by ∼9720 regulatory modules, of which ∼3000 operate in multiple tissues and ∼970 on multiple genes. We identify regulatory modules that drive the disease association for 63 of the 200 risk loci, and show that these are enriched in multigenic modules. Based on these analyses, we resequence 45 of the corresponding 100 candidate genes in 6600 Crohn disease (CD) cases and 5500 controls, and show with burden tests that they include likely causative genes. Our analyses indicate that ≥10-fold larger sample sizes will be required to demonstrate the causality of individual genes using this approach.
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Affiliation(s)
- Yukihide Momozawa
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Julia Dmitrieva
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Emilie Théâtre
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Valérie Deffontaine
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Souad Rahmouni
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Benoît Charloteaux
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - François Crins
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Elisa Docampo
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Mahmoud Elansary
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Ann-Stephan Gori
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Christelle Lecut
- Laboratory of Thrombosis and Hemostasis, GIGA-R, University of Liège (B34), 1 Avenue de l'Hôpital, 4000, Liège, Belgium
| | - Rob Mariman
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Myriam Mni
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Cécile Oury
- Laboratory of Thrombosis and Hemostasis, GIGA-R, University of Liège (B34), 1 Avenue de l'Hôpital, 4000, Liège, Belgium
| | - Ilya Altukhov
- Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny, 141700, Russian Federation
| | - Dmitry Alexeev
- Novosibirsk State University, Pirogova ave. 2, Novosibirsk, 630090, Russian Federation
| | - Yuri Aulchenko
- PolyOmica, Het Vlaggeschip 61, 's-Hertogenbosch, 5237 PA, The Netherlands
- Institute of Cytology and Genetics SD RAS, Lavrentyeva ave. 10, 630090, Novosibirsk, Russia
- Centre for Global Health Research, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, UK
| | - Leila Amininejad
- Gastroentérologie Médicale, Faculté de Médicine, Université Libre de Bruxelles, Route de Lennik 808, Anderlecht, 1070, Belgium
| | - Gerd Bouma
- Department of Gastroenterology and Hepatology, VU University Medical Centre, Amsterdam, 1081 HV, The Netherlands
| | - Frank Hoentjen
- Department of Gastroenterology and Hepatology, University Medical Centre St. Radboud, Nijmegen, 6525 GA, The Netherlands
| | - Mark Löwenberg
- Department of Gastroenterology and Hepatology, Amsterdam Medical Centre, Amsterdam, 1105 AZ, The Netherlands
| | - Bas Oldenburg
- Department of Gastroenterology and Hepatology, University Medical Centre Utrecht, 3584 cX, Utrecht, The Netherlands
| | - Marieke J Pierik
- Department of Gastroenterology and Hepatology, University Medical Centre Maastricht, Maastricht, 6229 HX, The Netherlands
| | | | - C Janneke van der Woude
- Department of Gastroenterology and Hepatology, Erasmus Medical Centre, Rotterdam, 3015 CE, The Netherlands
| | - Marijn C Visschedijk
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - Mark Lathrop
- McGill University Centre for Molecular and Computational Genomics, 740 Dr. Penfield Avenue, Montreal, H3A 0G1, QC, Canada
| | - Jean-Pierre Hugot
- UMR 1149 INSERM/Université Paris-Diderot Sorbonne Paris-Cité, Assistance Publique Hôpitaux de Paris, 48 Bd Sérurier, Paris, 75019, France
| | - Rinse K Weersma
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - Martine De Vos
- Department of Gastroenterology, University Hospital, De Pintelaan 185, Gent, 9000, Belgium
| | - Denis Franchimont
- Gastroentérologie Médicale, Faculté de Médicine, Université Libre de Bruxelles, Route de Lennik 808, Anderlecht, 1070, Belgium
| | - Severine Vermeire
- Translational Research in Gastrointestinal Disorders, Department of Clinical and Experimental Medicine, KU Leuven, UZ Herestraat 49, Leuven, 3000, Belgium
| | - Michiaki Kubo
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Edouard Louis
- CHU-Liège and Unit of Gastroenterology, GIGA-R & Faculty of Medicine, University of Liège, 1 Avenue de l'Hôpital, Liège, 4000, Belgium
| | - Michel Georges
- Unit of Animal Genomics, WELBIO, GIGA-R & Faculty of Veterinary Medicine, University of Liège (B34), 1 Avenue de l'Hôpital, Liège, 4000, Belgium.
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Amininejad L, Charloteaux B, Theatre E, Liefferinckx C, Dmitrieva J, Hayard P, Muls V, Maisin JM, Schapira M, Ghislain JM, Closset P, Talib M, Abramowicz M, Momozawa Y, Deffontaine V, Crins F, Mni M, Karim L, Cambisano N, Ornemese S, Zucchi A, Minsart C, Deviere J, Hugot JP, De Vos M, Louis E, Vermeire S, Van Gossum A, Coppieters W, Twizere JC, Georges M, Franchimont D. Analysis of Genes Associated With Monogenic Primary Immunodeficiency Identifies Rare Variants in XIAP in Patients With Crohn's Disease. Gastroenterology 2018; 154:2165-2177. [PMID: 29501442 DOI: 10.1053/j.gastro.2018.02.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 02/15/2018] [Accepted: 02/17/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS A few rare monogenic primary immunodeficiencies (PIDs) are characterized by chronic intestinal inflammation that resembles Crohn's disease (CD). We investigated whether 23 genes associated with 10 of these monogenic disorders contain common, low-frequency, or rare variants that increase risk for CD. METHODS Common and low frequency variants in 1 Mb loci centered on the candidate genes were analyzed using meta-data corresponding to genotypes of approximately 17,000 patients with CD or without CD (controls) in Europe. The contribution of rare variants was assessed by high-throughput sequencing of 4750 individuals, including 660 early-onset and/or familial cases among the 2390 patients with CD. Variants were expressed from vectors in SW480 or HeLa cells and functions of their products were analyzed in immunofluorescence, luciferase, immunoprecipitation, and immunoblot assays. RESULTS We reproduced the association of the interleukin 10 locus with CD (P = .007), although none of the significantly associated variants modified the coding sequence of interleukin 10. We found XIAP to be significantly enriched for rare coding mutations in patients with CD vs controls (P = .02). We identified 4 previously unreported missense variants associated with CD. Variants in XIAP cause the PID X-linked lymphoproliferative disease type 2, yet none of the carriers of these variants had all the clinical features of X-linked lymphoproliferative disease type 2. Identified XIAP variants S123N, R233Q, and P257A were associated with an impaired activation of NOD2 signaling after muramyl dipeptide stimulation. CONCLUSIONS In a systematic analysis of variants in 23 PID-associated genes, we confirmed the association of variants in XIAP with CD. Further screenings for CD-associated variants and analyses of their functions could increase our understanding of the relationship between PID-associated genes and CD pathogenesis.
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Affiliation(s)
- Leila Amininejad
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology and Laboratory of Experimental Gastroenterology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Benoit Charloteaux
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Emilie Theatre
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Claire Liefferinckx
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology and Laboratory of Experimental Gastroenterology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Julia Dmitrieva
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Pierre Hayard
- Department of Gastroenterology Charleroi University Hospital, Charleroi, Belgium
| | - Vincianne Muls
- Department of Gastroenterology, Saint Pierre Hospital, Brussels, Belgium
| | - Jean-Marc Maisin
- Department of Gastroenterology, Jolimont Hospital, La Louvière, Belgium
| | - Michael Schapira
- Department of Gastroenterology, Jolimont Hospital, La Louvière, Belgium
| | | | - Pierre Closset
- Department of Gastroenterology, Ixelles Hospital, Brussels, Belgium
| | - Mehdi Talib
- Department of Gastroenterology, Brugmann Hospital, Brussels, Belgium
| | - Marc Abramowicz
- Department of Human genetics, Erasme hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Yukihide Momozawa
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Valerie Deffontaine
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - François Crins
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Myriam Mni
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Latifa Karim
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium; Groupe Interdisciplinaire de Génoprotéomique Appliquée Genomics Platform, University of Liège, Liège, Belgium
| | - Nadine Cambisano
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium; Groupe Interdisciplinaire de Génoprotéomique Appliquée Genomics Platform, University of Liège, Liège, Belgium
| | - Sandra Ornemese
- Grappe Interdisciplinaire de Génoprotéomique Appliquée Imaging Platform, University of Liège, Liège, Belgium
| | - Alessandro Zucchi
- Laboratory of Parasitology, Université Libre de Bruxelles, Brussels, Belgium
| | - Charlotte Minsart
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology and Laboratory of Experimental Gastroenterology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Jacques Deviere
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology and Laboratory of Experimental Gastroenterology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Jean-Pierre Hugot
- Institut National de la Santé et de la Recherche Médicale U843, Hôpital Robert Debré, Paris, France
| | - Martine De Vos
- Department of Gastroenterology and Hepatology, Ghent University Hospital, Ghent, Belgium
| | - Edouard Louis
- Department of Gastroenterology, Sart Tilman Hospital, University of Liège, Liège, Belgium
| | - Severine Vermeire
- Department of Clinical and Experimental Medecine, Gastroenterology Section, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Andre Van Gossum
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology and Laboratory of Experimental Gastroenterology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Wouter Coppieters
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium; Groupe Interdisciplinaire de Génoprotéomique Appliquée Genomics Platform, University of Liège, Liège, Belgium
| | - Jean-Claude Twizere
- Laboratory of Protein Signalling and Interactions, Groupe Interdisciplinaire de Génoprotéomique Appliquée, University of Liège, Liège, Belgium
| | - Michel Georges
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée and Faculty of Veterinary Medecine, University of Liège, Liège, Belgium
| | - Denis Franchimont
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology and Laboratory of Experimental Gastroenterology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium.
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Van de Vondel S, Baert F, Reenaers C, Vanden Branden S, Amininejad L, Dewint P, Van Moerkercke W, Rahier JF, Hindryckx P, Bossuyt P, Ferrante M. Incidence and Predictors of Success of Adalimumab Dose Escalation and De-escalation in Ulcerative Colitis: a Real-World Belgian Cohort Study. Inflamm Bowel Dis 2018; 24:1099-1105. [PMID: 29668947 DOI: 10.1093/ibd/izx103] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Adalimumab (ADM) has been shown efficacious in ulcerative colitis (UC). In randomized controlled trials, dose escalation from 40 mg ADM every other week to 40 mg every week was required in 20%-25% of patients within 1 year. Real-life data suggest higher escalation rates. Attempts for dose de-escalation have not been studied yet. We assessed the need for, outcome of, and predictors of dose escalation and de-escalation in a large retrospective cohort of UC patients treated with ADM. METHODS We included 231 consecutive patients from 10 Belgian centers initiating ADM treatment for active UC before September 1, 2015 (follow-up ≥1 year in each patient). We performed detailed chart review to identify variables associated with short-term clinical benefit (based on physician global assessment and absence of rectal bleeding at week 10), success of dose escalation, and dose de-escalation. Backward Cox regression and Wald Logistic regression were used to identify predictive variables. RESULTS Short-term clinical benefit was achieved in 101 patients (44%) and was less frequent in infliximab failures [37% vs 50%, Odds ratio 0.57 (95% CI 0.34-0.97), P = 0.038]. After a median of 2.8 (1.7-5.1) months, 164 patients (71%) needed ADM discontinuation (n = 35, 15%) or dose escalation (n = 129, 56%). Dose escalation was successful in 77/129 (60%). Dose de-escalation was attempted in 71% (55/77) after a median of 4.3 (2.9-7.2) months and was successful in 80% (43/54). CONCLUSIONS In this cohort, 56% of patients with UC required ADM dose escalation with a 60% success rate. Of note, most patients could be successfully de-escalated later on.
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Affiliation(s)
- Saartje Van de Vondel
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Filip Baert
- Department of Gastroenterology, AZ Delta, Roeselare, Belgium
| | - Christine Reenaers
- Department of Gastroenterology, University Hospital CHU of Liège, Liège, Belgium
| | | | - Leila Amininejad
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Pieter Dewint
- Department of Gastroenterology, AZ Maria Middelares, Ghent, Belgium
| | | | | | - Pieter Hindryckx
- Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
| | - Peter Bossuyt
- Department of Gastroenterology, Imelda Hospital, Bonheiden, Belgium
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
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Liefferinckx C, Minsart C, Toubeau JF, Cremer A, Amininejad L, Quertinmont E, Devière J, Gils A, van Gossum A, Franchimont D. Infliximab Trough Levels at Induction to Predict Treatment Failure During Maintenance. Inflamm Bowel Dis 2017; 23:1371-1381. [PMID: 28498153 DOI: 10.1097/mib.0000000000001120] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Infliximab (IFX) is indicated for the treatment of inflammatory bowel diseases (IBD). Nevertheless, loss of response (LOR) to IFX is reported in up to 10% to 30% of patients within the first year of treatment. Our objective was to evaluate the impact of the pharmacokinetics of IFX at induction on treatment failure. METHODS This is a longitudinal cohort study on 269 patients with IBD treated with IFX in a single center. A total of 2331 blood samples were prospectively collected from 2007 until March 2015 with a retrospective analysis of clinical data. IFX trough levels (TLs) were measured by enzyme-linked immunosorbent assay. Antibodies to IFX were measured by drug-sensitive bridging assay. RESULTS During follow-up, patients were defined according to treatment outcome. At week 6, median IFX TL in patients requiring a switch to another treatment due to LOR (LOR switched group) (2.32 μg/mL [0.12-19.93 μg/mL]) was lower than in patients with long-term response (long-term responders) (8.66 μg/mL [0.12-12.09 μg/mL], P = 0.007) and in patients responding to optimization (LOR optimized group) (7.28 μg/mL [0.17-14.91 μg/mL], P = 0.021). At week 2, median IFX TL was lower in the LOR switched group (5.7 μg/mL [0.15-12.09 μg/mL]) compared with the long-term responders (11.92 μg/mL [0.14-19.93 μg/mL], P = 0.041) but no significant difference was reached with the LOR optimized group (11.91 μg/mL [0.23-12.09 μg/mL], P = 0.065). In the LOR switched group, median IFX TL at induction (weeks 2 and 6) was significantly lower when patients had been previously exposed to anti-tumor necrosis factor compared with naive patients (0.91 μg/mL [0.12-4.4 μg/mL] versus 6.6 μg/mL [0.15-19.93 μg/mL], P = 0.044). CONCLUSIONS This study suggests that patients who do not respond to any optimization strategy have lower IFX TLs during induction at week 6. IFX TLs measured early on at induction might predict treatment failure to IFX during maintenance.
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Affiliation(s)
- Claire Liefferinckx
- *Laboratory of Experimental Gastroenterology, Université libre de Bruxelles, Brussels, Belgium; †Electrical Power Engineering Unit, Université de Mons, Mons, Belgium; ‡Department of Gastroenterology, Erasme Hospital, Brussels, Belgium; and §Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
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8
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D'Haens G, Löwenberg M, Samaan MA, Franchimont D, Ponsioen C, van den Brink GR, Fockens P, Bossuyt P, Amininejad L, Rajamannar G, Lensink EM, Van Gossum AM. Safety and Feasibility of Using the Second-Generation Pillcam Colon Capsule to Assess Active Colonic Crohn's Disease. Clin Gastroenterol Hepatol 2015; 13:1480-6.e3. [PMID: 25804331 DOI: 10.1016/j.cgh.2015.01.031] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 01/24/2014] [Accepted: 01/30/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The second-generation Pillcam Colon Capsule Endoscope (PCCE-2; Given Imaging Ltd, Yoqneam, Israel) is an ingestible capsule for visualization of the colon. We performed a multicenter pilot study to assess its safety and feasibility in evaluating the severity of Crohn's disease (CD). METHODS In a prospective study, 40 patients with active colonic CD underwent PCCE-2 and optical colonoscopy procedures. Using both techniques, we generated values for the Crohn's Disease Endoscopic Index of Severity (CDEIS), the Simple Endoscopic Score for CD, and global evaluation of lesion severity. In the first stage of the study, we calculated the correlation between PCCE-2 and optical colonoscopy scores. In the second stage, we performed interobserver agreement analysis for a random subset of 20 PCCE-2 recordings, graded in duplicate by 2 independent readers. RESULTS There was substantial agreement between PCCE-2 and optical colonoscopy in the measurement of the CDEIS (intraclass correlation coefficient [ICC], 0.65; 95% confidence interval [CI], 0.43-0.80). There was substantial interobserver agreement between 2 independent PCCE-2 readers for the CDEIS (ICC, 0.67; 95% CI, 0.35-0.86) and the Simple Endoscopic Score for CD (ICC, 0.66; 95% CI, 0.32-0.85). However, the PCCE-2 scoring systematically underestimated the severity of disease compared with optical colonoscopy; based on our results, PCCE-2 detected colonic ulcerations with 86% sensitivity and 40% specificity. No adverse events were observed and PCCE-2 was better tolerated than colonoscopy. CONCLUSIONS PCCE-2 is feasible, safe, and well tolerated for the assessment of mucosal CD activity in selected populations. Larger studies are needed to assess its operating characteristics further. European clinical trials database number: 2014-003854-15.
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Affiliation(s)
- Geert D'Haens
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands; Robarts Clinical Trials, Inc, Amsterdam, The Netherlands and London, Ontario, Canada.
| | - Mark Löwenberg
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands
| | - Mark A Samaan
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands; Robarts Clinical Trials, Inc, Amsterdam, The Netherlands and London, Ontario, Canada
| | | | - Cyriel Ponsioen
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands
| | - Gijs R van den Brink
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands
| | - Paul Fockens
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands
| | - Peter Bossuyt
- Department of Gastroenterology, Imelda Ziekenhuis, Bonheiden, Belgium
| | - Leila Amininejad
- Department of Gastroenterology, Hospital Erasme, Brussels, Belgium
| | - Gopalan Rajamannar
- Robarts Clinical Trials, Inc, Amsterdam, The Netherlands and London, Ontario, Canada
| | - Elsemieke M Lensink
- Inflammatory Bowel Disease Unit, Academic Medical Centre, Amsterdam, The Netherlands
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Hindryckx P, Amininejad L, Van De Vijver E, Bossuyt P. Belgian recommendations for the management of anemia in patients with inflammatory bowel disease. Acta Gastroenterol Belg 2014; 77:333-344. [PMID: 25509205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Anemia is the most common extraintestinal manifestation of inflammatory bowel disease (IBD) which, in most cases, results from an absolute or functional iron deficiency. Although anemia and iron deficiency may have a dramatic impact on the quality of life of IBD patients, they are underdiagnosed and undertreated. This paper provides evidence-based consensus guidelines and practical treatment algorithms that are directly applicable to the Belgian situation. In this way, the Belgian IBD research and development Group (BIRD) aims to increase awareness and knowledge among gastroenterologists in order to improve the management of anemia and iron deficiency in their IBD patients.
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D'Haens GR, Franchimont D, Lowenberg M, Ponsioen C, Bossuyt P, Amininejad L, Van Gossum AM. Tu1531 Assessment of the Performance of the Colonic PillCam Pcce-2 in Patients With Active Crohn's Disease: a Pilot Study. Gastrointest Endosc 2014. [DOI: 10.1016/j.gie.2014.02.977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
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Jostins L, Ripke S, Weersma RK, Duerr RH, McGovern DP, Hui KY, Lee JC, Schumm LP, Sharma Y, Anderson CA, Essers J, Mitrovic M, Ning K, Cleynen I, Theatre E, Spain SL, Raychaudhuri S, Goyette P, Wei Z, Abraham C, Achkar JP, Ahmad T, Amininejad L, Ananthakrishnan AN, Andersen V, Andrews JM, Baidoo L, Balschun T, Bampton PA, Bitton A, Boucher G, Brand S, Büning C, Cohain A, Cichon S, D'Amato M, De Jong D, Devaney KL, Dubinsky M, Edwards C, Ellinghaus D, Ferguson LR, Franchimont D, Fransen K, Gearry R, Georges M, Gieger C, Glas J, Haritunians T, Hart A, Hawkey C, Hedl M, Hu X, Karlsen TH, Kupcinskas L, Kugathasan S, Latiano A, Laukens D, Lawrance IC, Lees CW, Louis E, Mahy G, Mansfield J, Morgan AR, Mowat C, Newman W, Palmieri O, Ponsioen CY, Potocnik U, Prescott NJ, Regueiro M, Rotter JI, Russell RK, Sanderson JD, Sans M, Satsangi J, Schreiber S, Simms LA, Sventoraityte J, Targan SR, Taylor KD, Tremelling M, Verspaget HW, De Vos M, Wijmenga C, Wilson DC, Winkelmann J, Xavier RJ, Zeissig S, Zhang B, Zhang CK, Zhao H, Silverberg MS, Annese V, Hakonarson H, Brant SR, Radford-Smith G, Mathew CG, Rioux JD, Schadt EE, Daly MJ, Franke A, Parkes M, Vermeire S, Barrett JC, Cho JH. Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease. Nature 2012; 491:119-24. [PMID: 23128233 PMCID: PMC3491803 DOI: 10.1038/nature11582] [Citation(s) in RCA: 3323] [Impact Index Per Article: 276.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 09/12/2012] [Indexed: 02/06/2023]
Abstract
Crohn’s disease (CD) and ulcerative colitis (UC), the two common forms of inflammatory bowel disease (IBD), affect over 2.5 million people of European ancestry with rising prevalence in other populations1. Genome-wide association studies (GWAS) and subsequent meta-analyses of CD and UC2,3 as separate phenotypes implicated previously unsuspected mechanisms, such as autophagy4, in pathogenesis and showed that some IBD loci are shared with other inflammatory diseases5. Here we expand knowledge of relevant pathways by undertaking a meta-analysis of CD and UC genome-wide association scans, with validation of significant findings in more than 75,000 cases and controls. We identify 71 new associations, for a total of 163 IBD loci that meet genome-wide significance thresholds. Most loci contribute to both phenotypes, and both directional and balancing selection effects are evident. Many IBD loci are also implicated in other immune-mediated disorders, most notably with ankylosing spondylitis and psoriasis. We also observe striking overlap between susceptibility loci for IBD and mycobacterial infection. Gene co-expression network analysis emphasizes this relationship, with pathways shared between host responses to mycobacteria and those predisposing to IBD.
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Affiliation(s)
- Luke Jostins
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1HH, UK
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De Groote D, Van Belleghem K, Devière J, Van Brussel W, Mukaneza A, Amininejad L. Effect of the intake of resveratrol, resveratrol phosphate, and catechin-rich grape seed extract on markers of oxidative stress and gene expression in adult obese subjects. Ann Nutr Metab 2012; 61:15-24. [PMID: 22776850 DOI: 10.1159/000338634] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 04/07/2012] [Indexed: 12/19/2022]
Abstract
BACKGROUND The preventive effect of resveratrol (RES) on the development of human diseases has been verified by numerous epidemiological studies. Resveratrol triphosphate (RTP) is a stable derivative of RES in which phosphate groups protect the phenolic groups. AIMS This study compared the effect of RTP on biochemical and molecular markers of oxidative stress to equimolar doses (0.66 mmol) of RES and catechin-rich grape seed extract (CGSE) in a model of oxidative and metabolic stress associated with obesity in humans. METHODS Thirty-two obese subjects (BMI between 30 and 40) were enrolled. They all received 1 capsule of placebo/day for 28 days before being randomly devised into three arms receiving 1 capsule/day of RES, CGSE, or RTP during the following consecutive 28 days. Blood samples were collected at baseline, after the end of placebo intake, and after the end of the investigational product intake. Biochemical parameters of oxidative stress and blood expression of 200 redox-related genes were determined at each time point. RESULTS RTP and CGSE showed better antioxidant activities compared to RES and induced important modulations of gene expression. CONCLUSION The results suggest that RTP and CGSE could contribute to a significant reduction of oxidative stress in obese subjects.
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Trépo E, Gustot T, Degré D, Lemmers A, Verset L, Demetter P, Ouziel R, Quertinmont E, Vercruysse V, Amininejad L, Deltenre P, Le Moine O, Devière J, Franchimont D, Moreno C. Common polymorphism in the PNPLA3/adiponutrin gene confers higher risk of cirrhosis and liver damage in alcoholic liver disease. J Hepatol 2011; 55:906-12. [PMID: 21334404 DOI: 10.1016/j.jhep.2011.01.028] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Revised: 12/20/2010] [Accepted: 01/06/2011] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS A recent genome-wide association study identified genetic polymorphism (rs738409 C>G) in the PNPLA3/adiponutrin gene associated with liver steatosis. This variant has also been linked to increased risk of alcoholic liver disease (ALD) and cirrhosis in Mestizo Mexicans with excessive alcohol intake. Our aim was to study the influence of this polymorphism on European Caucasian patients with histologically suggestive ALD. METHODS Three-hundred-and-twenty-eight healthy controls and 330 ALD patients, among whom 265 had cirrhosis, were genotyped for the rs738409 polymorphism. We studied the impact of rs738409 on clinical and biological parameters, together with histological staging of steatosis and fibrosis. PNPLA3 messenger RNA (mRNA) levels were measured by quantitative real-time PCR according to the patient's phenotype. RESULTS The G-allele was significantly more frequent in ALD patients than in controls (odds ratio [OR] = 1.54, 95% confidence interval [CI] = 1.12-2.11 p = 0.008) and was, among ALD patients, significantly associated with steatosis (p = 0.048), fibrosis (p = 0.001), and greater risk of cirrhosis (p = 0.001). In multivariate analysis, rs738409 remained the strongest independent factor associated with risk of cirrhosis (OR = 2.08; 95% CI = 1.15-3.77; p = 0.02). Furthermore, the PNPLA3 mRNA liver expression level was significantly lower in patients with more advanced fibrosis (p = 0.03) and negatively correlated with the hepatic venous pressure gradient (r = -0.41, p = 0.006). CONCLUSIONS In European Caucasians, the rs738409 variant is associated with increased risk of ALD, liver damage, and cirrhosis. Further prospective studies are required to confirm these results and to evaluate the potential of PNPLA3 as both a predictor and a therapeutic target in ALD.
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Affiliation(s)
- Eric Trépo
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
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14
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Trépo E, Pradat P, Potthoff A, Momozawa Y, Quertinmont E, Gustot T, Lemmers A, Berthillon P, Amininejad L, Chevallier M, Schlué J, Kreipe H, Devière J, Manns M, Trépo C, Sninsky J, Wedemeyer H, Franchimont D, Moreno C. Impact of patatin-like phospholipase-3 (rs738409 C>G) polymorphism on fibrosis progression and steatosis in chronic hepatitis C. Hepatology 2011. [PMID: 21488075 DOI: 10.1002/hep.24350.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED Only 20% of patients with chronic hepatitis C (CHC) will develop cirrhosis, and fibrosis progression remains highly unpredictable. A recent genome-wide association study identified a genetic variant in the patatin-like phospholipase-3 (PNPLA3) gene (rs738409 C>G) associated with steatosis that was further demonstrated to influence severity of fibrosis in nonalcoholic fatty liver disease. The aim of this study was to assess the impact of this polymorphism on histological liver damage and response to antiviral therapy in CHC. We recruited 537 Caucasian CHC patients from three European centers (Brussels, Belgium [n = 229]; Hannover, Germany [n = 171]; Lyon, France [n = 137]); these patients were centrally genotyped for the PNPLA3 (rs738409 C>G) polymorphism. We studied the influence of rs738409 and other variants in the PNPLA3 region on steatosis and fibrosis assessed both in a cross-sectional and longitudinal manner. Seven other variants previously associated with fibrosis progression were included. Finally, we explored the impact of rs738409 on response to standard antiviral therapy using the interferon lambda 3 (IL28B) [rs12979860 C>T] variant both as a comparator and as a positive control. After adjustment for age, sex, body mass index, alcohol consumption, and diabetes, rs738409 mutant G allele homozygote carriers remained at higher risk for steatosis (odds ratio [OR] 2.55, 95% confidence interval [CI] 1.08-6.03, P = 0.034), fibrosis (OR 3.13, 95% CI 1.50-6.51, P = 0.002), and fibrosis progression (OR 2.64, 95% CI 1.22-5.67, P = 0.013). Conversely, rs738409 was not independently associated with treatment failure (OR 1.07, 95% CI 0.46-2.49, P = 0.875) and did not influence clinical or biological variables. CONCLUSION The PNPLA3 (rs738409 C>G) polymorphism favors steatosis and fibrosis progression in CHC. This polymorphism may represent a valuable genetic predictor and a potential therapeutic target in CHC liver damage.
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Affiliation(s)
- Eric Trépo
- Department of Gastroenterology, Hepatopancreatology, and Digestive Oncology, Erasme Hospital, Brussels, Belgium
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15
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Spada C, Hassan C, Munoz-Navas M, Neuhaus H, Deviere J, Fockens P, Coron E, Gay G, Toth E, Riccioni ME, Carretero C, Charton JP, Van Gossum A, Wientjes CA, Sacher-Huvelin S, Delvaux M, Nemeth A, Petruzziello L, de Frias CP, Mayershofer R, Amininejad L, Dekker E, Galmiche JP, Frederic M, Johansson GW, Cesaro P, Costamagna G. Second-generation colon capsule endoscopy compared with colonoscopy. Gastrointest Endosc 2011; 74:581-589.e1. [PMID: 21601200 DOI: 10.1016/j.gie.2011.03.1125] [Citation(s) in RCA: 196] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Accepted: 03/09/2011] [Indexed: 12/13/2022]
Abstract
BACKGROUND Colon capsule endoscopy (CCE) represents a noninvasive technology that allows visualization of the colon without requiring sedation and air insufflation. A second-generation colon capsule endoscopy system (PillCam Colon 2) (CCE-2) was developed to increase sensitivity for colorectal polyp detection compared with the first-generation system. OBJECTIVE To assess the feasibility, accuracy, and safety of CCE-2 in a head-to-head comparison with colonoscopy. DESIGN AND SETTING Prospective, multicenter trial including 8 European sites. PATIENTS This study involved 117 patients (mean age 60 years). Data from 109 patients were analyzed. INTERVENTION CCE-2 was prospectively compared with conventional colonoscopy as the criterion standard for the detection of colorectal polyps that are ≥6 mm or masses in a cohort of patients at average or increased risk of colorectal neoplasia. Colonoscopy was independently performed within 10 hours after capsule ingestion or on the next day. MAIN OUTCOME MEASUREMENTS CCE-2 sensitivity and specificity for detecting patients with polyps ≥6 mm and ≥10 mm were assessed. Capsule-positive but colonoscopy-negative cases were counted as false positive. Capsule excretion rate, level of bowel preparation, and rate of adverse events also were assessed. RESULTS Per-patient CCE-2 sensitivity for polyps ≥6 mm and ≥10 mm was 84% and 88%, with specificities of 64% and 95%, respectively. All 3 invasive carcinomas were detected by CCE-2. The capsule excretion rate was 88% within 10 hours. Overall colon cleanliness for CCE-2 was adequate in 81% of patients. LIMITATIONS Not unblinding the CCE-2 results at colonoscopy; heterogenous patient population; nonconsecutive patients. CONCLUSION In this European, multicenter study, CCE-2 appeared to have a high sensitivity for the detection of clinically relevant polypoid lesions, and it might be considered an adequate tool for colorectal imaging.
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Anderson CA, Boucher G, Lees CW, Franke A, D'Amato M, Taylor KD, Lee JC, Goyette P, Imielinski M, Latiano A, Lagacé C, Scott R, Amininejad L, Bumpstead S, Baidoo L, Baldassano RN, Barclay M, Bayless TM, Brand S, Büning C, Colombel JF, Denson LA, De Vos M, Dubinsky M, Edwards C, Ellinghaus D, Fehrmann RSN, Floyd JAB, Florin T, Franchimont D, Franke L, Georges M, Glas J, Glazer NL, Guthery SL, Haritunians T, Hayward NK, Hugot JP, Jobin G, Laukens D, Lawrance I, Lémann M, Levine A, Libioulle C, Louis E, McGovern DP, Milla M, Montgomery GW, Morley KI, Mowat C, Ng A, Newman W, Ophoff RA, Papi L, Palmieri O, Peyrin-Biroulet L, Panés J, Phillips A, Prescott NJ, Proctor DD, Roberts R, Russell R, Rutgeerts P, Sanderson J, Sans M, Schumm P, Seibold F, Sharma Y, Simms LA, Seielstad M, Steinhart AH, Targan SR, van den Berg LH, Vatn M, Verspaget H, Walters T, Wijmenga C, Wilson DC, Westra HJ, Xavier RJ, Zhao ZZ, Ponsioen CY, Andersen V, Torkvist L, Gazouli M, Anagnou NP, Karlsen TH, Kupcinskas L, Sventoraityte J, Mansfield JC, Kugathasan S, Silverberg MS, Halfvarson J, Rotter JI, Mathew CG, Griffiths AM, Gearry R, Ahmad T, Brant SR, Chamaillard M, Satsangi J, Cho JH, Schreiber S, Daly MJ, Barrett JC, Parkes M, Annese V, Hakonarson H, Radford-Smith G, Duerr RH, Vermeire S, Weersma RK, Rioux JD. Erratum: Corrigendum: Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47. Nat Genet 2011. [DOI: 10.1038/ng0911-919b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Trépo E, Pradat P, Potthoff A, Momozawa Y, Quertinmont E, Gustot T, Lemmers A, Berthillon P, Amininejad L, Chevallier M, Schlué J, Kreipe H, Devière J, Manns M, Trépo C, Sninsky J, Wedemeyer H, Franchimont D, Moreno C. Impact of patatin-like phospholipase-3 (rs738409 C>G) polymorphism on fibrosis progression and steatosis in chronic hepatitis C. Hepatology 2011; 54:60-9. [PMID: 21488075 DOI: 10.1002/hep.24350] [Citation(s) in RCA: 152] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
UNLABELLED Only 20% of patients with chronic hepatitis C (CHC) will develop cirrhosis, and fibrosis progression remains highly unpredictable. A recent genome-wide association study identified a genetic variant in the patatin-like phospholipase-3 (PNPLA3) gene (rs738409 C>G) associated with steatosis that was further demonstrated to influence severity of fibrosis in nonalcoholic fatty liver disease. The aim of this study was to assess the impact of this polymorphism on histological liver damage and response to antiviral therapy in CHC. We recruited 537 Caucasian CHC patients from three European centers (Brussels, Belgium [n = 229]; Hannover, Germany [n = 171]; Lyon, France [n = 137]); these patients were centrally genotyped for the PNPLA3 (rs738409 C>G) polymorphism. We studied the influence of rs738409 and other variants in the PNPLA3 region on steatosis and fibrosis assessed both in a cross-sectional and longitudinal manner. Seven other variants previously associated with fibrosis progression were included. Finally, we explored the impact of rs738409 on response to standard antiviral therapy using the interferon lambda 3 (IL28B) [rs12979860 C>T] variant both as a comparator and as a positive control. After adjustment for age, sex, body mass index, alcohol consumption, and diabetes, rs738409 mutant G allele homozygote carriers remained at higher risk for steatosis (odds ratio [OR] 2.55, 95% confidence interval [CI] 1.08-6.03, P = 0.034), fibrosis (OR 3.13, 95% CI 1.50-6.51, P = 0.002), and fibrosis progression (OR 2.64, 95% CI 1.22-5.67, P = 0.013). Conversely, rs738409 was not independently associated with treatment failure (OR 1.07, 95% CI 0.46-2.49, P = 0.875) and did not influence clinical or biological variables. CONCLUSION The PNPLA3 (rs738409 C>G) polymorphism favors steatosis and fibrosis progression in CHC. This polymorphism may represent a valuable genetic predictor and a potential therapeutic target in CHC liver damage.
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Affiliation(s)
- Eric Trépo
- Department of Gastroenterology, Hepatopancreatology, and Digestive Oncology, Erasme Hospital, Brussels, Belgium
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Anderson CA, Boucher G, Lees CW, Franke A, D'Amato M, Taylor KD, Lee JC, Goyette P, Imielinski M, Latiano A, Lagacé C, Scott R, Amininejad L, Bumpstead S, Baidoo L, Baldassano RN, Barclay M, Bayless TM, Brand S, Büning C, Colombel JF, Denson LA, De Vos M, Dubinsky M, Edwards C, Ellinghaus D, Fehrmann RSN, Floyd JAB, Florin T, Franchimont D, Franke L, Georges M, Glas J, Glazer NL, Guthery SL, Haritunians T, Hayward NK, Hugot JP, Jobin G, Laukens D, Lawrance I, Lémann M, Levine A, Libioulle C, Louis E, McGovern DP, Milla M, Montgomery GW, Morley KI, Mowat C, Ng A, Newman W, Ophoff RA, Papi L, Palmieri O, Peyrin-Biroulet L, Panés J, Phillips A, Prescott NJ, Proctor DD, Roberts R, Russell R, Rutgeerts P, Sanderson J, Sans M, Schumm P, Seibold F, Sharma Y, Simms LA, Seielstad M, Steinhart AH, Targan SR, van den Berg LH, Vatn M, Verspaget H, Walters T, Wijmenga C, Wilson DC, Westra HJ, Xavier RJ, Zhao ZZ, Ponsioen CY, Andersen V, Torkvist L, Gazouli M, Anagnou NP, Karlsen TH, Kupcinskas L, Sventoraityte J, Mansfield JC, Kugathasan S, Silverberg MS, Halfvarson J, Rotter JI, Mathew CG, Griffiths AM, Gearry R, Ahmad T, Brant SR, Chamaillard M, Satsangi J, Cho JH, Schreiber S, Daly MJ, Barrett JC, Parkes M, Annese V, Hakonarson H, Radford-Smith G, Duerr RH, Vermeire S, Weersma RK, Rioux JD. Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47. Nat Genet 2011. [PMID: 21297633 DOI: 10.1038/ng.764ng.764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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.
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Affiliation(s)
- Carl A Anderson
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
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Anderson CA, Boucher G, Lees CW, Franke A, D'Amato M, Taylor KD, Lee JC, Goyette P, Imielinski M, Latiano A, Lagacé C, Scott R, Amininejad L, Bumpstead S, Baidoo L, Baldassano RN, Barclay M, Bayless TM, Brand S, Büning C, Colombel JF, Denson LA, De Vos M, Dubinsky M, Edwards C, Ellinghaus D, Fehrmann RSN, Floyd JAB, Florin T, Franchimont D, Franke L, Georges M, Glas J, Glazer NL, Guthery SL, Haritunians T, Hayward NK, Hugot JP, Jobin G, Laukens D, Lawrance I, Lémann M, Levine A, Libioulle C, Louis E, McGovern DP, Milla M, Montgomery GW, Morley KI, Mowat C, Ng A, Newman W, Ophoff RA, Papi L, Palmieri O, Peyrin-Biroulet L, Panés J, Phillips A, Prescott NJ, Proctor DD, Roberts R, Russell R, Rutgeerts P, Sanderson J, Sans M, Schumm P, Seibold F, Sharma Y, Simms LA, Seielstad M, Steinhart AH, Targan SR, van den Berg LH, Vatn M, Verspaget H, Walters T, Wijmenga C, Wilson DC, Westra HJ, Xavier RJ, Zhao ZZ, Ponsioen CY, Andersen V, Torkvist L, Gazouli M, Anagnou NP, Karlsen TH, Kupcinskas L, Sventoraityte J, Mansfield JC, Kugathasan S, Silverberg MS, Halfvarson J, Rotter JI, Mathew CG, Griffiths AM, Gearry R, Ahmad T, Brant SR, Chamaillard M, Satsangi J, Cho JH, Schreiber S, Daly MJ, Barrett JC, Parkes M, Annese V, Hakonarson H, Radford-Smith G, Duerr RH, Vermeire S, Weersma RK, Rioux JD. Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47. Nat Genet 2011; 43:246-52. [PMID: 21297633 PMCID: PMC3084597 DOI: 10.1038/ng.764] [Citation(s) in RCA: 1003] [Impact Index Per Article: 77.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Accepted: 01/14/2011] [Indexed: 02/06/2023]
Abstract
Genome-wide association studies (GWAS) and candidate gene studies in ulcerative colitis (UC) have identified 18 susceptibility loci. We conducted a meta-analysis of 6 UC GWAS, 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 UC associated loci to 47. After annotating associated regions using GRAIL, eQTL data and correlations with non-synonymous SNPs, we identified many candidate genes providing potentially important insights into disease pathogenesis, including IL1R2, IL8RA/B, IL7R, IL12B, DAP, PRDM1, JAK2, IRF5, GNA12 and LSP1. The total number of confirmed inflammatory bowel disease (IBD) risk loci is now 99, including a minimum of 28 shared association signals between Crohn’s disease (CD) and UC.
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Affiliation(s)
- Carl A Anderson
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
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Momozawa Y, Mni M, Nakamura K, Coppieters W, Almer S, Amininejad L, Cleynen I, Colombel JF, de Rijk P, Dewit O, Finkel Y, Gassull MA, Goossens D, Laukens D, Lémann M, Libioulle C, O'Morain C, Reenaers C, Rutgeerts P, Tysk C, Zelenika D, Lathrop M, Del-Favero J, Hugot JP, de Vos M, Franchimont D, Vermeire S, Louis E, Georges M. Resequencing of positional candidates identifies low frequency IL23R coding variants protecting against inflammatory bowel disease. Nat Genet 2010; 43:43-7. [PMID: 21151126 DOI: 10.1038/ng.733] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 11/18/2010] [Indexed: 02/07/2023]
Abstract
Genome-wide association studies (GWAS) have identified dozens of risk loci for many complex disorders, including Crohn's disease. However, common disease-associated SNPs explain at most ∼20% of the genetic variance for Crohn's disease. Several factors may account for this unexplained heritability, including rare risk variants not adequately tagged thus far in GWAS. That rare susceptibility variants indeed contribute to variation in multifactorial phenotypes has been demonstrated for colorectal cancer, plasma high-density lipoprotein cholesterol levels, blood pressure, type 1 diabetes, hypertriglyceridemia and, in the case of Crohn's disease, for NOD2 (refs. 14,15). Here we describe the use of high-throughput resequencing of DNA pools to search for rare coding variants influencing susceptibility to Crohn's disease in 63 GWAS-identified positional candidate genes. We identify low frequency coding variants conferring protection against inflammatory bowel disease in IL23R, but we conclude that rare coding variants in positional candidates do not make a large contribution to inherited predisposition to Crohn's disease.
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Affiliation(s)
- Yukihide Momozawa
- Unit of Animal Genomics, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA-R) and Faculty of Veterinary Medicine, University of Liège (B34), Liège, Belgium
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Covas A, Amininejad L, Lucidi V, Liberale G, Hendlisz A, Demetter P, Nagy N, Goldman S, Donckier V, Van Laethem J. Evaluation of the correlation of complete metabolic response with 18-FDG PET scan and complete pathologic response induced by neoadjuvant chemotherapy for colorectal liver metastases. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.4070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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