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3. NOX1 loss-of-function genetic variants in patients with inflammatory bowel disease

Author

Schwerd, T, Bryant, RV, Pandey, S, Capitani, M, Meran, L, Cazier, J-B, Jung, J, Mondal, K, Parkes, M, Mathew, CG, Fiedler, K, McCarthy, DJ, Sullivan, PB, Rodrigues, A, Travis, SPL, Moore, C, Sambrook, J, Ouwehand, WH, Roberts, DJ, Danesh, J, Russell, RK, Wilson, DC, Kelsen, JR, Cornall, R, Denson, LA, Kugathasan, S, Knaus, UG, Serra, EG, Anderson, CA, Duerr, RH, McGovern, DPB, Cho, J, Powrie, F, Li, VSW, Muise, AM, and Uhlig, HH more...

Published
2018
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6. Large-scale sequencing identifies multiple genes and rare variants associated with Crohn’s disease susceptibility

Author

Sazonovs, A., Stevens, C.R., Venkataraman, G.R., Yuan, K., Avila, B., Abreu, M.T., Ahmad, T., Allez, M., Ananthakrishnan, A.N., Atzmon, G., Baras, A., Barrett, J.C., Barzilai, N., Beaugerie, L., Beecham, A., Bernstein, C.N., Bitton, A., Bokemeyer, B., Chan, A., Chung, D., Cleynen, I., Cosnes, J., Cutler, D.J., Daly, A., Damas, O.M., Datta, L.W., Dawany, N., Devoto, M., Dodge, S., Ellinghaus, E., Fachal, L., Farkkila, M., Faubion, W., Ferreira, M., Franchimont, D., Gabriel, S.B., Ge, T., Georges, M., Gettler, K., Giri, M., Glaser, B., Goerg, S., Goyette, P., Graham, D., Hamalainen, E., Haritunians, T., Heap, G.A., Hiltunen, M., Hoeppner, M., Horowitz, J.E., Irving, P., Iyer, V., Jalas, C., Kelsen, J., Khalili, H., Kirschner, B.S., Kontula, K., Koskela, J.T., Kugathasan, S., Kupcinskas, J., Lamb, C.A., Laudes, M., Levesque, C., Levine, A.P., Lewis, J.D., Liefferinckx, C., Loescher, B.S., Louis, E., Mansfield, J., May, S., McCauley, J.L., Mengesha, E., Mni, M., Moayyedi, P., Moran, C.J., Newberry, R.D., O'Charoen, S., Okou, D.T., Oldenburg, B., Ostrer, H., Palotie, A., Paquette, J., Pekow, J., Peter, I., Pierik, M.J., Ponsioen, C.Y., Pontikos, N., Prescott, N., Pulver, A.E., Rahmouni, S., Rice, D.L., Saavalainen, P., Sands, B., Sartor, R.B., Schiff, E.R., Schreiber, S., Schumm, L.P., Segal, A.W., Seksik, P., Shawky, R., Sheikh, S.Z., Silverberg, M.S., Simmons, A., Skeiceviciene, J., Sokol, H., Solomonson, M., Somineni, H., Sun, D., Targan, S., Turner, D., Uhlig, H.H., Meulen, A.E. van der, Vermeire, S., Verstockt, S., Voskuil, M.D., Winter, H.S., Young, J., Duerr, R.H., Franke, A., Brant, S.R., Cho, J., Weersma, R.K., Parkes, M., Xavier, R.J., Rivas, M.A., Rioux, J.D., McGovern, D.P.B., Huang, H.L., Anderson, C.A., Daly, M.J., Belgium IBD Consortium, Cedars-Sinai IBD, International IBD Genetics Consortium, NIDDK IBD Genetics Consortium, NIHR IBD BioResource, Regeneron Genetics Center, SHARE Consortium, SPARC IBD Network, UK IBD Genetics Consortium, Interne Geneeskunde, MUMC+: MA Maag Darm Lever (9), RS: NUTRIM - R2 - Liver and digestive health, Gastroenterology and Hepatology, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, and Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI) more...

Subjects
Crohn Disease, Genetics, Humans, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Article, Genome-Wide Association Study
Abstract

Genome-wide association studies (GWASs) have identified hundreds of loci associated with Crohn's disease (CD). However, as with all complex diseases, robust identification of the genes dysregulated by noncoding variants typically driving GWAS discoveries has been challenging. Here, to complement GWASs and better define actionable biological targets, we analyzed sequence data from more than 30,000 patients with CD and 80,000 population controls. We directly implicate ten genes in general onset CD for the first time to our knowledge via association to coding variation, four of which lie within established CD GWAS loci. In nine instances, a single coding variant is significantly associated, and in the tenth, ATG4C, we see additionally a significantly increased burden of very rare coding variants in CD cases. In addition to reiterating the central role of innate and adaptive immune cells as well as autophagy in CD pathogenesis, these newly associated genes highlight the emerging role of mesenchymal cells in the development and maintenance of intestinal inflammation.Large-scale sequence-based analyses identify novel risk variants and susceptibility genes for Crohn's disease, and implicate mesenchymal cell-mediated intestinal homeostasis in disease etiology. more...

Published
2022

7. Mucosal T-cell immunoregulation varies in early and late inflammatory bowel disease

Author

Kugathasan, S., Saubermann, L.J., Smith, L., Kou, D., Itoh, J., Binion, D.G., Levine, A.D., Blumberg, R.S., and Fiocchi, C.

Subjects
Crohn's disease -- Development and progression, Crohn's disease -- Physiological aspects, Crohn's disease -- Research, T cells -- Physiological aspects, T cells -- Research, Immune response -- Regulation, Immune response -- Research, Health
Published
2007

10. NOX1 loss-of-function genetic variants in patients with inflammatory bowel disease

Author

Schwerd, T., Bryant, R. V., Pandey, S., Capitani, M., Meran, L., Cazier, J. -B., Jung, J., Mondal, K., Parkes, M., Mathew, C. G., Fiedler, K., McCarthy, D. J., Sullivan, P. B., Rodrigues, A., Travis, S. P. L., Moore, C., Sambrook, J., Ouwehand, W. H., Roberts, D. J., Danesh, J., Russell, R. K., Wilson, D. C., Kelsen, J. R., Cornall, R., Denson, L. A., Kugathasan, S., Knaus, U. G., Serra, E. G., Anderson, C. A., Duerr, R. H., McGovern, D. P. B., Cho, J., Powrie, Fiona, Li, V. S. W., Muise, A. M., Uhlig, H. H., Donnelly, P., Bell, J., Bentley, D., McVean, G., Ratcliffe, P., Taylor, J., Wilkie, A. O. M., Broxholme, J., Buck, D., Gregory, L., Gregory, J., Lunter, G., Tomlinson, I., Allan, C., Attar, M., Green, A., Humphray, S., Kingsbury, Z., Lamble, S., Lonie, L., Pagnamenta, A., Piazza, P., Polanco, G., Trebes, A., Copley, R., Fiddy, S., Grocock, R., Hatton, E., Holmes, C., Hughes, L., Humburg, P., Kanapin, A., Lise, S., Martin, H., Murray, L., McCarthy, D., Rimmer, A., Sahgal, N., Wright, B., Yau, C., Arancibia, Carolina, Bailey, Adam, Barnes, Ellie, Bird-Lieberman, Beth, Brain, Oliver, Braden, Barbara, Collier, Jane, East, James, Geremia, Alessandra, Howarth, Lucy, Keshav, Satish, Klenerman, Paul, Leedham, Simon, Palmer, Rebecca, Rodrigues, Astor, Simmons, Alison, Sullivan, Peter B, Travis, Simon P L, Uhlig, Holm H, Heuschkel, Rob, Zilbauer, Matthias, Auth, Marcus K. H., Shah, Neil, Kammermeier, Jochen, Croft, Nick, Barakat, Farah, Russell, Richard K., Wilson, David C., Henderson, Paul, Braegger, Christian P., Posovszky, Carsten, Fyderek, Krzysztof, Wedrychowicz, Andrzej, Zurek, Marlen, Strisciuglio, Caterina, Elawad, Mamoun, Lo, Bernice, Parkes, Miles, Satsangi, Jack, Anderson, Carl A., Jostins, L., Kennedy, N. A., Lamb, C. A., Ahmad, T., Edwards, C., Hart, A., Hawkey, C., Mansfield, J. C., Mowat, C., Newman, W. G., Satsangi, J., Simmons, A., Tremelling, M., Lee, J. C., Prescott, N. J., Lees, C. W., Barrett, J. C., UK IBD Genetics Consortium, COLORS in IBD, Oxford IBD cohort study investigators, WGS500 Consortium, INTERVAL Study, Schwerd, T., Bryant, R. V., Pandey, S., Capitani, M., Meran, L., Cazier, J. -B., Jung, J., Mondal, K., Parkes, M., Mathew, C. G., Fiedler, K., Mccarthy, D. J., Sullivan, P. B., Rodrigues, A., Travis, S. P. L., Moore, C., Sambrook, J., Ouwehand, W. H., Roberts, D. J., Danesh, J., Russell, R. K., Wilson, D. C., Kelsen, J. R., Cornall, R., Denson, L. A., Kugathasan, S., Knaus, U. G., Serra, E. G., Anderson, C. A., Duerr, R. H., Mcgovern, D. P. B., Cho, J., Powrie, Fiona, Li, V. S. W., Muise, A. M., Uhlig, H. H., Donnelly, P., Bell, J., Bentley, D., Mcvean, G., Ratcliffe, P., Taylor, J., Wilkie, A. O. M., Broxholme, J., Buck, D., Gregory, L., Gregory, J., Lunter, G., Tomlinson, I., Allan, C., Attar, M., Green, A., Humphray, S., Kingsbury, Z., Lamble, S., Lonie, L., Pagnamenta, A., Piazza, P., Polanco, G., Trebes, A., Copley, R., Fiddy, S., Grocock, R., Hatton, E., Holmes, C., Hughes, L., Humburg, P., Kanapin, A., Lise, S., Martin, H., Murray, L., Mccarthy, D., Rimmer, A., Sahgal, N., Wright, B., Yau, C., Arancibia, Carolina, Bailey, Adam, Barnes, Ellie, Bird-Lieberman, Beth, Brain, Oliver, Braden, Barbara, Collier, Jane, East, Jame, Geremia, Alessandra, Howarth, Lucy, Keshav, Satish, Klenerman, Paul, Leedham, Simon, Palmer, Rebecca, Rodrigues, Astor, Simmons, Alison, Sullivan, Peter B, Travis, Simon P L, Uhlig, Holm H, Heuschkel, Rob, Zilbauer, Matthia, Auth, Marcus K. H., Shah, Neil, Kammermeier, Jochen, Croft, Nick, Barakat, Farah, Russell, Richard K., Wilson, David C., Henderson, Paul, Braegger, Christian P., Posovszky, Carsten, Fyderek, Krzysztof, Wedrychowicz, Andrzej, Zurek, Marlen, Strisciuglio, Caterina, Elawad, Mamoun, Lo, Bernice, Parkes, Mile, Satsangi, Jack, Anderson, Carl A., Jostins, L., Kennedy, N. A., Lamb, C. A., Ahmad, T., Edwards, C., Hart, A., Hawkey, C., Mansfield, J. C., Mowat, C., Newman, W. G., Satsangi, J., Simmons, A., Tremelling, M., Lee, J. C., Prescott, N. J., Lees, C. W., Barrett, J. C., UK IBD Genetics, Consortium, COLORS in, Ibd, Oxford IBD cohort study, Investigator, Wgs500, Consortium, and Interval, Study more...

Subjects
Male, Genotype, Colon, Immunology, Mutation, Missense, Genetic Association Studie, Polymorphism, Single Nucleotide, Article, Mice, Animals, Humans, Immunology and Allergy, Genetic Predisposition to Disease, Child, Genetic Association Studies, Genes, Modifier, Genome, Animal, Inflammatory Bowel Disease, High-Throughput Nucleotide Sequencing, Inflammatory Bowel Diseases, digestive system diseases, Host-Pathogen Interaction, Mice, Inbred C57BL, Child, Preschool, Host-Pathogen Interactions, NADPH Oxidase 1, Reactive Oxygen Species, Reactive Oxygen Specie, Human
Abstract

Genetic defects that affect intestinal epithelial barrier function can present with very early-onset inflammatory bowel disease (VEOIBD). Using whole-genome sequencing, a novel hemizygous defect in NOX1 encoding NAPDH oxidase 1 was identified in a patient with ulcerative colitis-like VEOIBD. Exome screening of 1,878 pediatric patients identified further seven male inflammatory bowel disease (IBD) patients with rare NOX1 mutations. Loss-of-function was validated in p.N122H and p.T497A, and to a lesser degree in p.Y470H, p.R287Q, p.I67M, p.Q293R as well as the previously described p.P330S, and the common NOX1 SNP p.D360N (rs34688635) variant. The missense mutation p.N122H abrogated reactive oxygen species (ROS) production in cell lines, ex vivo colonic explants, and patient-derived colonic organoid cultures. Within colonic crypts, NOX1 constitutively generates a high level of ROS in the crypt lumen. Analysis of 9,513 controls and 11,140 IBD patients of non-Jewish European ancestry did not reveal an association between p.D360N and IBD. Our data suggest that loss-of-function variants in NOX1 do not cause a Mendelian disorder of high penetrance but are a context-specific modifier. Our results implicate that variants in NOX1 change brush border ROS within colonic crypts at the interface between the epithelium and luminal microbes. more...

Published
2018

11. IBD risk loci are enriched in multigenic regulatory modules encompassing putative causative genes

Author

Momozawa, Y, Dmitrieva, J, Theatre, 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, Lowenberg, M, Oldenburg, B, Pierik, MJ, de Jong, AE, van der Woude, C.J., Visschedijk, MC, Lathrop, M, Hugot, JP, Weersma, RK, Vos, M, Franchimont, D, Vermeire, S, Kubo, M, Louis, E, Georges, M, Abraham, C, Achkar, JP, Ahmad, T, Ananthakrishnan, AN, Andersen, V, Anderson, CA, Andrews, JM, Annese, V, Aumais, G, Baidoo, L, Baldassano, RN, Bampton, PA, Barclay, M, Barrett, JC, Bayless, TM, Bethge, J, Bitton, A, Boucher, G, Brand, S, Brandt, B, Brant, SR, Buning, C, Chew, A, Cho, JH, Cleynen, I, Cohain, A, Croft, A, Daly, MJ, D'Amato, M, Danese, S, Jong, D, Denapiene, G, Denson, LA, Devaney, KL, Dewit, O, D'Inca, R, Dubinsky, M, Duerr, RH, Edwards, C, Ellinghaus, D, Essers, J, Ferguson, LR, Festen, EA, Fleshner, P, Florin, T, Franke, A, Fransen, K, Gearry, R, Gieger, C, Glas, J, Goyette, P, Green, T, Griffiths, AM, Guthery, SL, Hakonarson, H, Halfvarson, J, Hanigan, K, Haritunians, T, de Hart, A, Hawkey, C, Hayward, NK, Hedl, M, Henderson, P, Hu, XH, Huang, HL, Hui, KY, Imielinski, M, Ippoliti, A, Jonaitis, L, Jostins, L, Karlsen, TH, Kennedy, NA, Khan, MA, Kiudelis, G, Krishnaprasad, K, Kugathasan, S, Kupcinskas, L, Latiano, A, Laukens, D, Lawrance, IC, Lee, JC, Lees, CW, Leja, M, van Limbergen, J, Lionetti, P, Liu, JZ, Mahy, G, Mansfield, J, Massey, D, Mathew, CG, McGovern, DPB, Milgrom, R, Mitrovic, M, Montgomery, GW, Mowat, C, Newman, W, Ng, A, Ng, SC, Ng, SME, Nikolaus, S, Ning, K, Nothen, M, Oikonomou, I, Palmieri, O, Parkes, M, Phillips, A, Ponsioen, CY, Potocnik, U, Prescott, NJ, Proctor, DD, Radford-Smith, G, Rahier, JF, Raychaudhuri, S, Regueiro, M, Rieder, F, Rioux, JD, Ripke, S, Roberts, R, Russell, RK, Sanderson, JD, Sans, M, Satsangi, J, Schadt, EE, Schreiber, S, Schulte, D, Schumm, LP, Scott, R, Seielstad, M, Sharma, Y, Silverberg, MS, Simms, LA, Skieceviciene, J, Spain, SL, Steinhart, AH, Stempak, JM, Stronati, L, Sventoraityte, J, Targan, SR, Taylor, KM, Velde, A, Torkvist, L, Tremelling, M, van Sommeren, S, Vasiliauskas, E, Verspaget, HW, Walters, T, Wang, K, Wang, MH, Wei, Z, Whiteman, D, Wijmenga, C, Wilson, DC, Winkelmann, J, Xavier, RJ, Zhang, B, Zhang, CK, Zhang, H, Zhang, W, Zhao, HY, Zhao, ZZ, Momozawa, Y, Dmitrieva, J, Theatre, E, Deffontaine, V, Rahmouni, S, Charloteaux, B, Crins, F, Docampo, E, Elansary, M, Gori, A, Lecut, C, Mariman, R, Mni, M, Oury, C, Altukhov, I, Alexeev, D, Aulchenko, Y, Amininejad, L, Bouma, G, Hoentjen, F, Lowenberg, M, Oldenburg, B, Pierik, Mj, vander Meulen-de Jong, Ae, van der Woude, Cj, Visschedijk, Mc, Lathrop, M, Hugot, Jp, Weersma, Rk, De Vos, M, Franchimont, D, Vermeire, S, Kubo, M, Louis, E, Georges, M, Abraham, C, Achkar, Jp, Ahmad, T, Ananthakrishnan, An, Andersen, V, Anderson, Ca, Andrews, Jm, Annese, V, Aumais, G, Baidoo, L, Baldassano, Rn, Bampton, Pa, Barclay, M, Barrett, Jc, Bayless, Tm, Bethge, J, Bitton, A, Boucher, G, Brand, S, Brandt, B, Brant, Sr, Buning, C, Chew, A, Cho, Jh, Cleynen, I, Cohain, A, Croft, A, Daly, Mj, D'Amato, M, Danese, S, De Jong, D, Denapiene, G, Denson, La, Devaney, Kl, Dewit, O, D'Inca, R, Dubinsky, M, Duerr, Rh, Edwards, C, Ellinghaus, D, Essers, J, Ferguson, Lr, Festen, Ea, Fleshner, P, Florin, T, Franke, A, Fransen, K, Gearry, R, Gieger, C, Glas, J, Goyette, P, Green, T, Griffiths, Am, Guthery, Sl, Hakonarson, H, Halfvarson, J, Hanigan, K, Haritunians, T, Hart, A, Hawkey, C, Hayward, Nk, Hedl, M, Henderson, P, Hu, Xh, Huang, Hl, Hui, Ky, Imielinski, M, Ippoliti, A, Jonaitis, L, Jostins, L, Karlsen, Th, Kennedy, Na, Khan, Ma, Kiudelis, G, Krishnaprasad, K, Kugathasan, S, Kupcinskas, L, Latiano, A, Laukens, D, Lawrance, Ic, Lee, Jc, Lees, Cw, Leja, M, Van Limbergen, J, Lionetti, P, Liu, Jz, Mahy, G, Mansfield, J, Massey, D, Mathew, Cg, Mcgovern, Dpb, Milgrom, R, Mitrovic, M, Montgomery, Gw, Mowat, C, Newman, W, Ng, A, Ng, Sc, Ng, Sme, Nikolaus, S, Ning, K, Nothen, M, Oikonomou, I, Palmieri, O, Parkes, M, Phillips, A, Ponsioen, Cy, Potocnik, U, Prescott, Nj, Proctor, Dd, Radford-Smith, G, Rahier, Jf, Raychaudhuri, S, Regueiro, M, Rieder, F, Rioux, Jd, Ripke, S, Roberts, R, Russell, Rk, Sanderson, Jd, Sans, M, Satsangi, J, Schadt, Ee, Schreiber, S, Schulte, D, Schumm, Lp, Scott, R, Seielstad, M, Sharma, Y, Silverberg, M, Simms, La, Skieceviciene, J, Spain, Sl, Steinhart, Ah, Stempak, Jm, Stronati, L, Sventoraityte, J, Targan, Sr, Taylor, Km, ter Velde, A, Torkvist, L, Tremelling, M, van Sommeren, S, Vasiliauskas, E, Verspaget, Hw, Walters, T, Wang, K, Wang, Mh, Wei, Z, Whiteman, D, Wijmenga, C, Wilson, Dc, Winkelmann, J, Xavier, Rj, Zhang, B, Zhang, Ck, Zhang, H, Zhang, W, Zhao, Hy, Zhao, Zz, Gastroenterology & Hepatology, UCL - SSS/IREC/GAEN - Pôle d'Hépato-gastro-entérologie, and UCL - (MGD) Service de gastro-entérologie more...

Subjects
Adult, Male, Multifactorial Inheritance, QUANTITATIVE TRAIT LOCUS, Genotype, SEQUENCING DATA, Quantitative Trait Loci, SUSCEPTIBILITY, Polymorphism, Single Nucleotide, Article, Cohort Studies, CODING VARIANTS, Crohn Disease, 80 and over, Journal Article, Medicine and Health Sciences, LOCUS, Humans, Genetic Predisposition to Disease, Polymorphism, GENOME-WIDE ASSOCIATION, Genetic Association Studies, Aged, Aged, 80 and over, Science & Technology, Female, Gene Expression Profiling, Inflammatory Bowel Diseases, Middle Aged, Sequence Analysis, DNA, COMPLEX TRAITS, Biology and Life Sciences, Single Nucleotide, DNA, CROHNS-DISEASE, Multidisciplinary Sciences, QUANTITATIVE TRAIT, RARE VARIANTS, Science & Technology - Other Topics, LOW-FREQUENCY, Sequence Analysis, INFLAMMATORY-BOWEL-DISEASE
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., Most of the more than 200 known genetic risk loci for inflammatory bowel disease (IBD) reside in regulatory regions. Here, the authors provide eQTL datasets for six circulating immune cell types and ileal, colonic and rectal biopsies to map regulatory modules and identify potential causative genes for IBD. more...

Published
2018
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12. Pediatric inflammatory bowel disease clinical innovations meeting of the Crohn's and colitis foundation: Charting the future of pediatric IBD

Author

Heller, C.A., Park, K.T., Mulberg, A., Bousvaros, A., Grossman, A.B., Kugathasan, S., Lee, D., Otley, A., Denson, L.A., Picoraro, J.A., Hyams, J.S., Ziring, D., Rosh, J.R., Weaver, A., Conklin, L.S., and Kappelman, M.D. more...

Subjects
digestive system diseases
Abstract

The Crohn's & Colitis Foundation has facilitated transformational research in pediatric inflammatory bowel disease (IBD), through the RISK and PROTECT studies, that has laid the groundwork for a comprehensive understanding of molecular mechanisms of disease and predictors of therapeutic response in children. Despite these advances, children have lacked timely and informed access to the latest therapeutic advancements in IBD. The Crohn's & Colitis Foundation convened a Pediatric Resource Organization for Kids with Inflammatory Intestinal Diseases (PRO-KIIDS) Clinical Innovations Meeting at the inaugural Crohn's and Colitis Congress in January 2018 to devise how to advance the care of children with IBD. The working group selected 2 priorities: (1) accelerating therapies to children with IBD and (2) stimulating investigator-initiated research while fostering sustainable collaboration; and proposed 2 actions: (a) the convening of a task force to specifically address how to accelerate pharmacotherapies to children with IBD and (b) the funding of a multicenter clinical and translational research study that incorporates the building of critical research infrastructure. more...

Published
2019
Full Text
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13. IBD risk loci are enriched in multigenic regulatory modules encompassing putative causative genes

Author

Momozawa, Y., Dmitrieva, J., Theatre, E., Deffontaine, V., Rahmouni, S., Charloteaux, B., Crins, F., Docampo, E., Elansary, M., Gori, A.S., Lecut, C., Mariman, R., Mni, M., Oury, C., Altukhov, I., Alexeev, D., Aulchenko, Y., Amininejad, L., Bouma, G., Hoentjen, F., Lowenberg, M., Oldenburg, B., Pierik, M.J., vander Meulen-de Jong, A.E., Woude, C.J. van der, Visschedijk, M.C., Lathrop, M., Hugot, J.P., Weersma, R.K., Vos, M. de, Franchimont, D., Vermeire, S., Kubo, M., Louis, E., Georges, M., Abraham, C., Achkar, J.P., Ahmad, T., Ananthakrishnan, A.N., Andersen, V., Anderson, C.A., Andrews, J.M., Annese, V., Aumais, G., Baidoo, L., Baldassano, R.N., Bampton, P.A., Barclay, M., Barrett, J.C., Bayless, T.M., Bethge, J., Bitton, A., Boucher, G., Brand, S., Brandt, B., Brant, S.R., Buning, C., Chew, A., Cho, J.H., Cleynen, I., Cohain, A., Croft, A., Daly, M.J., D'Amato, M., Danese, S., Jong, D. de, Denapiene, G., Denson, L.A., Devaney, K.L., Dewit, O., D'Inca, R., Dubinsky, M., Duerr, R.H., Edwards, C., Ellinghaus, D., Essers, J., Ferguson, L.R., Festen, E.A., Fleshner, P., Florin, T., Franke, A., Fransen, K., Gearry, R., Gieger, C., Glas, J., Goyette, P., Green, T., Griffiths, A.M., Guthery, S.L., Hakonarson, H., Halfvarson, J., Hanigan, K., Haritunians, T., Hart, A., Hawkey, C., Hayward, N.K., Hedl, M., Henderson, P., Hu, X.H., Huang, H.L., Hui, K.Y., Imielinski, M., Ippoliti, A., Jonaitis, L., Jostins, L., Karlsen, T.H., Kennedy, N.A., Khan, M.A., Kiudelis, G., Krishnaprasad, K., Kugathasan, S., Kupcinskas, L., Latiano, A., Laukens, D., Lawrance, I.C., Lee, J.C., Lees, C.W., Leja, M., Limbergen, J. van, Lionetti, P., Liu, J.Z., Mahy, G., Mansfield, J., Massey, D., Mathew, C.G., McGovern, D.P.B., Milgrom, R., Mitrovic, M., Montgomery, G.W., Mowat, C., Newman, W., Ng, A., Ng, S.C., Ng, S.M.E., Nikolaus, S., Ning, K., Nothen, M., Oikonomou, I., Palmieri, O., Parkes, M., Phillips, A., Ponsioen, C.Y., Potocnik, U., Prescott, N.J., Proctor, D.D., Radford-Smith, G., Rahier, J.F., Raychaudhuri, S., Regueiro, M., Rieder, F., Rioux, J.D., Ripke, S., Roberts, R., Russell, R.K., Sanderson, J.D., Sans, M., Satsangi, J., Schadt, E.E., Schreiber, S., Schulte, D., Schumm, L.P., Scott, R., Seielstad, M., Sharma, Y., Silverberg, M.S., Simms, L.A., Skieceviciene, J., Spain, S.L., Steinhart, A.H., Stempak, J.M., Stronati, L., Sventoraityte, J., Targan, S.R., Taylor, K.M., Velde, A. ter, Torkvist, L., Tremelling, M., Sommeren, S. van, Vasiliauskas, E., Verspaget, H.W., Walters, T., Wang, K., Wang, M.H., Wei, Z., Whiteman, D., Wijmenga, C., Wilson, D.C., Winkelmann, J., Xavier, R.J., Zhang, B., Zhang, C.K., Zhang, H., Zhang, W., Zhao, H.Y., Zhao, Z.Z., and Int IBD Genetics Consortium more...

Published
2018

14. IBD Serology and Disease Outcomes in African Americans with Crohn's Disease

Author

Kugathasan, S., Alexander, J.S., Baldassano, R.N., Sauer, C., Hofmekler, T., McGovern, D., Chopra, P., Hussain, S.Z., Bertha, M., Katz, J., Prince, J., Landers, C.J., Dubinsky, M.C., Patel, A., Bruce, B.B., Okou, D., Moulton, D.E., Osuntokun, B.O., Vasantharoopan, A., Kirschner, B.S., Wang, G., Kappelman, M.D., Saeed, S., Klapproth, J.-M.A., Cross, R.K., Dhere, T.A., and Kumar, A. more...

Abstract

Backgrounds: Recent studies have identified the role of serologic markers in characterizing disease phenotype, location, complications, and severity among Northern Europeans (NE) with Crohn's disease (CD). However, very little is known about the role of serology in CD among African Americans (AA). Our study explored the relationship between serology and disease phenotype in AA with CD, while controlling for genetic ancestry. Methods: AAs with CD were enrolled as participants through multicenter collaborative efforts. Serological levels of IgA anti-Saccharomyces cervisiae antibody (ASCA), IgG ASCA, E. coli outermembrane porin C, anti-CBir1, and ANCA were measured using enzyme-linked immunosorbent assays. Genotyping was performed using Illumina immunochip technology; an admixture rate was calculated for each subject. Multiple imputation by chained equations was performed to account for data missing at random. Logistic regression was used to calculate adjusted odds ratio (OR) for associations between serological markers and both complicated disease and disease requiring surgery. Results: A total of 358 patients were included in the analysis. The majority of our patients had inflammatory, noncomplicated disease (58.4%), perianal disease (55.7%), and documented colonic inflammation (86.8%). On multivariable analysis, both IgG ASCA and OmpC were associated with complicated disease (OR, 2.67; 95% CI, 1.67-4.28; OR, 2.23; 95% CI, 1.41-3.53, respectively) and disease requiring surgery (OR, 2.51; 95% CI, 1.49-4.22; OR, 3.57; 95% CI, 2.12-6.00). NE admixture to the African genome did not have any associations or interactions in relation to clinical outcome. Conclusions: Our study comprises the largest cohort of AAs with CD. The utility of serological markers for the prognosis of CD in NE applies equally to AA populations. more...

Published
2018
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15. Inherited determinants of Crohn's disease and ulcerative colitis phenotypes:a genetic association study

Author

Cleynen, Isabelle, Boucher, Gabrielle, Jostins, Luke, Schumm, L. Philip, Zeissig, Sebastian, Ahmad, Tariq, Andersen, Vibeke, Andrews, Jane M., Annese, Vito, Brand, Stephan, Brant, Steven R., Cho, Judy H., Daly, Mark J., Dubinsky, Marla, Duerr, Richard H., Ferguson, Lynnette R., Franke, Andre, Gearry, Richard B., Goyette, Philippe, Hakonarson, Hakon, Halfvarson, Jonas, Hov, Johannes R., Huang, Hailang, Kennedy, Nicholas A., Kupcinskas, Limas, Lawrance, Ian C., Lee, James C., Satsangi, Jack, Schreiber, Stephan, Théâtre, Emilie, Van Der Meulen De Jong, Andrea E, Weersma, Rinse K., Wilson, David C., Parkes, Miles, Vermeire, Severine, Rioux, John D., Mansfield, John, Silverberg, Mark S., Radford Smith, Graham, Mcgovern, Dermot P. B., Barrett, Jeffrey C., Lees, Charlie W, Abraham, C, Achkar, Jp, Ahmad, T, Amininejad, L, Ananthakrishnan, An, Andersen, V, Anderson, Ca, Andrews, Jm, Annese, V, Aumais, G, Baidoo, L, Baldassano, Rn, Bampton, Pa, Barclay, M, Barrett, Jc, Bayless, Tm, Bethge, J, Bis, Jc, Bitton, A, Boucher, G, Brand, S, Brandt, B, Brant, Sr, Büning, C, Chew, A, Cho, Jh, Cleynen, I, Cohain, A, Croft, A, Daly, Mj, D'Amato, M, Danese, S, De Jong, D, De Vos, M, Denapiene, G, Denson, La, Devaney, K, Dewit, O, D'Inca, R, Dubinsky, M, Duerr, Rh, Edwards, C, Ellinghaus, D, Essers, J, Ferguson, Lr, Festen, Ea, Fleshner, P, Florin, T, Franchimont, D, Franke, A, Fransen, K, Gearry, R, Georges, M, Gieger, C, Glas, J, Goyette, P, Green, T, Griffiths, Am, Guthery, Sl, Hakonarson, H, Halfvarson, J, Hanigan, K, Haritunians, T, Hart, A, Hawkey, C, Hayward, Nk, Hedl, M, Henderson, P, Hu, X, Huang, H, Hui, Ky, Imielinski, M, Ippoliti, A, Jonaitis, L, Jostins, L, Karlsen, Th, Kennedy, Na, Khan, Ma, Kiudelis, G, Krishnaprasad, K, Kugathasan, S, Kupcinskas, L, Latiano, A, Laukens, D, Lawrance, Ic, Lee, Jc, Lees, Cw, Leja, M, Van Limbergen, J, Lionetti, P, Liu, Jz, Louis, E, Mahy, G, Mansfield, J, Massey, D, Mathew, Cg, Mcgovern, Dp, Milgrom, R, Mitrovic, M, Montgomery, Gw, Mowat, C, Newman, W, Ng, A, Ng, Sc, Ng, Sm, Nikolaus, S, Ning, K, Nöthen, M, Oikonomou, I, Palmieri, O, Parkes, M, Phillips, A, Ponsioen, Cy, Potocnik, U, Prescott, Nj, Proctor, Dd, Radford Smith, G, Rahier, Jf, Raychaudhuri, S, Regueiro, M, Rieder, F, Rioux, Jd, Ripke, S, Roberts, R, Russell, Rk, Sanderson, Jd, Sans, M, Satsangi, J, Schadt, Ee, Schreiber, S, Schumm, Lp, Scott, R, Seielstad, M, Sharma, Y, Silverberg, Ms, Simms, La, Skieceviciene, J, Spain, Sl, Steinhart, A, Stempak, Jm, Stronati, Laura, Sventoraityte, J, Targan, Sr, Taylor, Km, ter Velde, A, Theatre, E, Torkvist, L, Tremelling, M, van der Meulen, A, van Sommeren, S, Vasiliauskas, E, Vermeire, S, Verspaget, Hw, Walters, T, Wang, K, Wang, Mh, Weersma, Rk, Wei, Z, Whiteman, D, Wijmenga, C, Wilson, Dc, Winkelmann, J, Xavier, Rj, Zeissig, S, Zhang, B, Zhang, Ck, Zhang, H, Zhang, W, Zhao, H, Zhao, Zz, UCL - SSS/IREC/GAEN - Pôle d'Hépato-gastro-entérologie, UCL - (MGD) Service de gastro-entérologie, and Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI) more...

Subjects
Male, 0301 basic medicine, CLINICAL-COURSE, Nod2 Signaling Adaptor Protein, Disease, SUSCEPTIBILITY, Inflammatory bowel disease, Major Histocompatibility Complex, 0302 clinical medicine, Crohn Disease, Maintenance therapy, NOD2, Medicine and Health Sciences, POPULATION, Immunoassay, RISK, Medicine(all), education.field_of_study, Crohn's disease, Hepatocyte Growth Factor, Medicine (all), INDUCTION, Articles, General Medicine, PRIMARY SCLEROSING CHOLANGITIS, Ulcerative colitis, 3. Good health, Phenotype, Female, 030211 gastroenterology & hepatology, Adult, medicine.medical_specialty, MAINTENANCE THERAPY, Genotype, Population, Polymorphism, Single Nucleotide, Risk Assessment, CLASSIFICATION, Primary sclerosing cholangitis, Young Adult, 03 medical and health sciences, inflammatory bowel disease, Proto-Oncogene Proteins, Internal medicine, medicine, Humans, Genetic Predisposition to Disease, education, Alleles, Genetic Association Studies, business.industry, medicine.disease, digestive system diseases, 030104 developmental biology, Immunology, Colitis, Ulcerative, business, FOLLOW-UP, HLA-DRB1 Chains, INFLAMMATORY-BOWEL-DISEASE
Abstract

Background: Crohn's disease and ulcerative colitis are the two major forms of inflammatory bowel disease; treatment strategies have historically been determined by this binary categorisation. Genetic studies have identified 163 susceptibility loci for inflammatory bowel disease, mostly shared between Crohn's disease and ulcerative colitis. We undertook the largest genotype association study, to date, in widely used clinical subphenotypes of inflammatory bowel disease with the goal of further understanding the biological relations between diseases.Methods: This study included patients from 49 centres in 16 countries in Europe, North America, and Australasia. We applied the Montreal classification system of inflammatory bowel disease subphenotypes to 34 819 patients (19 713 with Crohn's disease, 14 683 with ulcerative colitis) genotyped on the Immunochip array. We tested for genotype–phenotype associations across 156 154 genetic variants. We generated genetic risk scores by combining information from all known inflammatory bowel disease associations to summarise the total load of genetic risk for a particular phenotype. We used these risk scores to test the hypothesis that colonic Crohn's disease, ileal Crohn's disease, and ulcerative colitis are all genetically distinct from each other, and to attempt to identify patients with a mismatch between clinical diagnosis and genetic risk profile.Findings: After quality control, the primary analysis included 29 838 patients (16 902 with Crohn's disease, 12 597 with ulcerative colitis). Three loci (NOD2, MHC, and MST1 3p21) were associated with subphenotypes of inflammatory bowel disease, mainly disease location (essentially fixed over time; median follow-up of 10·5 years). Little or no genetic association with disease behaviour (which changed dramatically over time) remained after conditioning on disease location and age at onset. The genetic risk score representing all known risk alleles for inflammatory bowel disease showed strong association with disease subphenotype (p=1·65 × 10−78), even after exclusion of NOD2, MHC, and 3p21 (p=9·23 × 10−18). Predictive models based on the genetic risk score strongly distinguished colonic from ileal Crohn's disease. Our genetic risk score could also identify a small number of patients with discrepant genetic risk profiles who were significantly more likely to have a revised diagnosis after follow-up (p=6·8 × 10−4).Interpretation: Our data support a continuum of disorders within inflammatory bowel disease, much better explained by three groups (ileal Crohn's disease, colonic Crohn's disease, and ulcerative colitis) than by Crohn's disease and ulcerative colitis as currently defined. Disease location is an intrinsic aspect of a patient's disease, in part genetically determined, and the major driver to changes in disease behaviour over time.Funding: International Inflammatory Bowel Disease Genetics Consortium members funding sources (see Acknowledgments for full list). more...

Published
2016
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16. Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47

Author

Anderson, C.A. Boucher, G. Lees, C.W. Franke, A. D'Amato, M. Taylor, K.D. Lee, J.C. Goyette, P. Imielinski, M. Latiano, A. Lagacé, C. Scott, R. Amininejad, L. Bumpstead, S. Baidoo, L. Baldassano, R.N. Barclay, M. Bayless, T.M. Brand, S. Büning, C. Colombel, J.-F. Denson, L.A. De Vos, M. Dubinsky, M. Edwards, C. Ellinghaus, D. Fehrmann, R.S.N. Floyd, J.A.B. Florin, T. Franchimont, D. Franke, L. Georges, M. Glas, J. Glazer, N.L. Guthery, S.L. Haritunians, T. Hayward, N.K. Hugot, J.-P. Jobin, G. Laukens, D. Lawrance, I. Lémann, M. Levine, A. Libioulle, C. Louis, E. McGovern, D.P. Milla, M. Montgomery, G.W. Morley, K.I. Mowat, C. Ng, A. Newman, W. Ophoff, R.A. Papi, L. Palmieri, O. Peyrin-Biroulet, L. Panés, J. Phillips, A. Prescott, N.J. Proctor, D.D. Roberts, R. Russell, R. Rutgeerts, P. Sanderson, J. Sans, M. Schumm, P. Seibold, F. Sharma, Y. Simms, L.A. Seielstad, M. Steinhart, A.H. Targan, S.R. Van Den Berg, L.H. Vatn, M. Verspaget, H. Walters, T. Wijmenga, C. Wilson, D.C. Westra, H.-J. Xavier, R.J. Zhao, Z.Z. Ponsioen, C.Y. Andersen, V. Torkvist, L. Gazouli, M. Anagnou, N.P. Karlsen, T.H. Kupcinskas, L. Sventoraityte, J. Mansfield, J.C. Kugathasan, S. Silverberg, M.S. Halfvarson, J. Rotter, J.I. Mathew, C.G. Griffiths, A.M. Gearry, R. Ahmad, T. Brant, S.R. Chamaillard, M. Satsangi, J. Cho, J.H. Schreiber, S. Daly, M.J. Barrett, J.C. Parkes, M. Annese, V. Hakonarson, H. Radford-Smith, G. Duerr, R.H. Vermeire, S. Weersma, R.K. Rioux, J.D. more...

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. © 2011 Nature America, Inc. All rights reserved. more...

Published
2011

18. The safety of autologous and metabolically fit bone marrow mesenchymal stromal cells in medically refractory Crohn's disease - a phase 1 trial with three doses.

Author

Dhere, T., Copland, I., Garcia, M., Chiang, K. Y., Chinnadurai, R., Prasad, M., Galipeau, J., and Kugathasan, S.

Subjects
BONE marrow, STROMAL cells, CROHN'S disease, FIBRINOGEN, BLOOD platelets, CELL proliferation, PHENOTYPES, CYTOKINES
Abstract

Background Mesenchymal stromal cells ability to reset immune functionalities may be useful in Crohn's disease. Aim To perform a first-in-human phase 1 safety clinical trial of metabolically fit autologous bone marrow-derived mesenchymal stromal cells in 12 subjects with Crohn's disease utilising three doses. Methods Autologous mesenchymal stromal cells were derived from marrow aspirate and propagated for 2-3 weeks with fibrinogen depleted human platelet lysate and subsequently administered to subjects without interval cryobanking. Twelve subjects received a single mesenchymal stromal cell intravenous infusion of 2, 5 or 10 million cells/kg BW( n = 4/group). Infused mesenchymal stromal cells were analysed for cell surface marker expression, IDO(indoleamine 2,3-dioxygenase) upregulation by IFN γ stimulation, and inhibition of third party peripheral blood mononuclear cell proliferation in vitro. The primary end point measured was safety and tolerability; clinical response was assessed as a secondary endpoint. Results All patients tolerated the mesenchymal stromal cell infusion well and no dose limiting toxicity was seen. Seven patients had serious adverse events of which five were hospitalisations for Crohn's disease flare. Two of these serious adverse events were possibly related to the mesenchymal stromal cells infusion. Five subjects showed clinical response 2 weeks after the infusion. Mesenchymal stromal cell phenotype, cytokine responsiveness, and peripheral blood mononuclear cell proliferation blockade were not different among the patients. Conclusion Single infusion of fresh autologous bone marrow mesenchymal stromal cells propagated ex vivo using human platelet lysate-supplemented media was safe and feasible at intravenous doses of up to 10 million cells/kg BW in patients with Crohn's disease. [ABSTRACT FROM AUTHOR] more...

Published
2016
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19. Authors' reply

Author

Kugathasan, S., Saubermann, L.J., Smith, L., Kou, D., Itoh, J., Binion, D.G., Levine, A.D., Blumberg, R.S., and Fiocchi, C.

Subjects
Inflammatory bowel diseases -- Development and progression, Interleukin-12 -- Physiological aspects, Dendritic cells -- Physiological aspects, Health
Published
2008

20. O-11: Real world outcomes of contemporary treatments in children with Crohn’s disease: observations from the pediatric IBD collaborative research group registry

Author

Markowitz, J., Lerer, T., Morganstern, J., Deslandres, C., Tomer, G., Schaefer, M., Kugathasan, S., Faubion, W., Kappelman, M., Sudel, B., Hitch, M., Keljo, D., Grossman, A., Carvalho, R., Leleiko, N., Saeed, S., Oliva-Hemker, M., Kay, M., Rosh, J., Pfefferkorn, M., Otley, A., Rick, J., Mack, D., Cabrera, J., Griffiths, A., and Hyams, J. more...

Published
2014
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21. A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Author

Rivas, Manuel A., Graham, Daniel, Sulem, Patrick, Stevens, Christine, Desch, A. Nicole, Goyette, Philippe, Gudbjartsson, Daniel, Jonsdottir, Ingileif, Thorsteinsdottir, Unnur, Degenhardt, Frauke, Mucha, Sören, Li, Dalin, D'Amato, Mauro, Annese, Vito, Vermeire, Severine, Weersma, Rinse K., Halfvarson, Jonas, Paavola-Sakki, Paulina, Lappalainen, Maarit, Tukiainen, Taru, Haritunians, Talin, Halme, Leena, Koskinen, Lotta L. E., Luo, Yang, Heap, Graham A., Visschedijk, Marijn C., Barrett, J, de Lange, K, Edwards, C, Hart, A, Hawkey, C, Jostins, L, Kennedy, N, Lamb, C, Lee, J, Lees, C, Mansfield, J, Mathew, C, Mowatt, C, Newman, W, Nimmo, E, Parkes, M, Pollard, M, Prescott, N, Randall, J, Rice, D, Satsangi, J, Simmons, A, Tremelling, M, Uhlig, H, Wilson, D, Abraham, C, Achkar, J.P, Bitton, A, Boucher, G, Croitoru, K, Fleshner, P, Glas, J, Kugathasan, S, Limbergen, J.V, Milgrom, R, Proctor, D, Regueiro, M, Schumm, P.L, Sharma, Y, Stempak, J.M, Targan, S.R, Wang, M.H, Ahmad, Tariq, Anderson, Carl A., Brant, Steven R., Duerr, Richard H., Silverberg, Mark S., Cho, Judy H, Saavalainen, Päivi, Kontula, Kimmo, Färkkilä, Martti, McGovern, Dermot P. B., Franke, Andre, Stefansson, Kari, Rioux, John D., Barrett, J., de Lane, K., Edwards, C., Hart, A., Hawkey, C., Jostins, L., Kennedy, N., Lamb, C., Lee, J., Lees, C., Mansfield, J., Mathew, C., Mowatt, C., Newman, B., Nimmo, E., Parkes, M., Pollard, M., Prescott, N., Randall, J., Rice, D., Satsangi, J., Simmons, A., Tremelling, M., Uhlig, H., Wilson, D., Abraham, C., Achkar, J. P., Bitton, A., Boucher, G., Croitoru, K., Fleshner, P., Glas, J., Kugathasan, S., Limbergen, J. V., Milgrom, R., Proctor, D., Regueiro, M., Schumm, P. L., Sharma, Y., Stempak, J. M., Targan, S. R., Wang, M. H., Kurki, Mitja, Lek, Monkol, Cummings, Beryl, Ananthakrishnan, Ashwin, MacArthur, Daniel, Neale, Benjamin, Palotie, Aarno, Xavier, Ramnik, and Daly, Mark more...

Abstract

Protein-truncating variants protective against human disease provide in vivo validation of therapeutic targets. Here we used targeted sequencing to conduct a search for protein-truncating variants conferring protection against inflammatory bowel disease exploiting knowledge of common variants associated with the same disease. Through replication genotyping and imputation we found that a predicted protein-truncating variant (rs36095412, p.R179X, genotyped in 11,148 ulcerative colitis patients and 295,446 controls, MAF=up to 0.78%) in RNF186, a single-exon ring finger E3 ligase with strong colonic expression, protects against ulcerative colitis (overall P=6.89 × 10−7, odds ratio=0.30). We further demonstrate that the truncated protein exhibits reduced expression and altered subcellular localization, suggesting the protective mechanism may reside in the loss of an interaction or function via mislocalization and/or loss of an essential transmembrane domain., Version of Record more...

Published
2016
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22. P436 Malignancies in children receiving infliximab and other inflammatory bowel disease therapies: an inflammatory bowel disease multicenter, prospective, long-term registry of pediatric patients (DEVELOP) registry data

Author

Colletti, R., Cucchiara, S., Dubinsky, M., Escher, J., Faubion, W., Fell, J., Gold, B., Griffiths, A., Hyams, J., Koletzko, S., Kugathasan, S., Winter, H., Baldassano, R., Markowitz, J., Ruemmele, F.M., Callegari, P., Molenda, M., Tang, L., Wright, R., and Veereman, G. more...

Published
2013
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23. 15 Serious infections and associated risk factors in patients receiving infliximab and immunotherapies for children with inflammatory bowel disease: DEVELOP registry data

Author

Baldassano, R., Colletti, R., Cucchiara, S., Dubinsky, M., Escher, J., Faubion, W., Fell, J., Gold, B., Griffiths, A., Hyams, J., Koletzko, S., Kugathasan, S., Markowitz, J., Ruemmele, F.M., Veereman, G., Callegari, P., Molenda, M., Tang, K.L., Wright, R., and Winter, H. more...

Published
2013
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25. Association of Crohn's disease, thiopurines, and primary epstein-barr virus infection with hemophagocytic lymphohistiocytosis.

Author

Biank VF, Sheth MK, Talano J, Margolis D, Simpson P, Kugathasan S, Stephens M, Biank, Vincent F, Sheth, Mehul K, Talano, Julie, Margolis, David, Simpson, Pippa, Kugathasan, Subra, and Stephens, Michael more...

Abstract

Objective: To assess the incidence of hemophagocytic lymphohistiocytosis (HLH) in a well-defined population of children with inflammatory bowel disease (IBD) and evaluate the common clinical and laboratory characteristics of individuals with IBD who developed HLH.Study Design: We conducted a retrospective study of all children who developed HLH over an 8-year period. The incidence of HLH in patients with IBD was calculated using US census data and a statewide project examining the epidemiology of pediatric IBD.Results: Among children in Wisconsin, 20 cases of HLH occurred during the study period; 5 cases occurred in children with IBD. Common characteristics include: Crohn's disease (CD), thiopurine administration, fever lasting more than 5 days, lymphadenopathy, splenomegaly, anemia, lymphopenia, and elevated serum triglycerides and ferritin. Of the patients, 4 had primary Epstein-Barr virus infections. The incidence of HLH among all children in Wisconsin was 1.5 per 100 000 per year. The risk was more than 100-fold greater for children with CD (P < .00001).Conclusions: Pediatric patients with CD are at increased risk for developing HLH; primary Epstein-Barr virus infection and thiopurine administration may be risk factors. [ABSTRACT FROM AUTHOR] more...

Published
2011
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39. Deep resequencing of GWAS loci identifies rare variants in CARD9, IL23R and RNF186 that are associated with ulcerative colitis

Author

Beaudoin, Melissa, Goyette, Philippe, Boucher, Gabrielle, Lo, Ken Sin, Rivas, Manuel A., Stevens, Christine, Alikashani, Azadeh, Ladouceur, Martin, Ellinghaus, David, Torkvist, Leif, Goel, Gautam, Lagace, Caroline, Annese, Vito, Bitton, Alain, Begun, Jakob, Brant, Steven R., Bresso, Francesca, Cho, Judy H., Duerr, Richard H., Halfvarson, Jonas, McGovern, Dermot P. B., Radford-Smith, Graham, Schreiber, Stefan, Schumm, Philip L., Sharma, Yashoda, Silverberg, Mark S., Weersma, Rinse K., Quebec IBD Genetics Consortium, NIDDK IBD Genetics Consortium, International IBD Genetics Consortium (IIBDGC), D'Amato, Mauro, Vermeire, Severine, Franke, Andre, Lettre, Guillaume, Xavier, Ramnik J., Daly, Mark J., Rioux, John D., Aumais, G., Bernard, E. J., Bitton, A., Cohen, A., Deslandres, C., Lahaie, R., Paré, P., Rioux, J. D., Brant, S. R., Cho, J. H., Duerr, R. H., McGovern, D. P., Silverberg, M. S., Ahmad, T., Anderson, C. A., Annese, V., Baldassano, R. N., Balschun, T., Barclay, M., Barrett, J. C., Bayless, T. M., Bis, J. C., Brand, S., Bumpstead, S., Buning, C., Colombel, J. F., Cottone, M., D'Amato, M., D'Inca, R., Daly, M. J., Denson, T., Dubinsky, M., Edwards, C., Ellinghaus, D., Florin, T., Franchimont, D., Franke, A., Gearry, R., Georges, M., Glas, J., Van Gossum, A., Griffiths, A. M., Guthery, S. L., Hakonarson, H., Haritunians, T., Hugot, J. P., De Jong, D. J., Jostins, L., Kugathasan, S., Kullak-Ublick, G., Latiano, A., Laukens, D., Lawrance, I., Lee, J., Lees, C. W., Lemann, M., Levine, A., Libioulle, C., Louis, E., Mansfield, J. C., Mathew, C. G., Mitrovic, M., Montgomery, G. W., Mowat, C., Newman, W., Palmieri, O., Panés, J., Parkes, M., Phillips, A., Ponsioen, C. Y., Potocnik, U., Prescott, N. J., Proctor, D. D., Radford-Smith, G. L., Regueiro, M., Roberts, R., Rotter, J. I., Rutgeerts, P., Sanderson, J., Sans, M., Satsangi, J., Schreiber, S., Schumm, P., Seibold, F., Sharma, Y., Simms, L. A., Steinhart, A., Targan, S. R., Taylor, K. D., Torkvist, L., Vermeire, S., Halfvarson, J., Verspaget, H. W., De Vos, M., Walters, T., Wang, K., Weersma, R. K., Whiteman, D., and Wijmenga, C. more...

Subjects
3. Good health
Abstract

PLoS genetics 9(9), e1003723 (2013). doi:10.1371/journal.pgen.1003723, Published by Public Library of Science, San Francisco, Calif.

42. Genetic variants in the autophagy pathway contribute to paediatric Crohn's disease.

Author

N Peterson, S Guthery, Denson, L., Lee, J., Saeed, S., Prahalad, S., Biarik, V., Ehiert, R., Tomer, C., Grand, R., Rudolph, C., and Kugathasan, S.

Subjects
CROHN'S disease, LETTERS to the editor
Abstract

A letter to the editor is presented in response to an article about the impact of genome-wide association studies in generating new insights into the etiology of Crohn's disease in the 2007 issue.

Published
2008
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