{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T18:19:50Z","timestamp":1792174790670,"version":"4.4.0"},"reference-count":46,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2024,10,3]],"date-time":"2024-10-03T00:00:00Z","timestamp":1727913600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,3,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background and Aims<\/jats:title>\n                  <jats:p>Several therapies have been approved to treat Crohn\u2019s disease (CD) and ulcerative colitis (UC), indicating that both diseases may share the same molecular subtypes. The aim of this study is to identify shared patient subtypes with common molecular drivers of disease.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Five public datasets with 406 CD and 421 UC samples were integrated to identify molecular subtypes. Then, the patient labels from 6 independent datasets and 8 treatment datasets were predicted for validating subtypes and identifying the relationship with response status of corticosteroids, infliximab, vedolizumab, and ustekinumab.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Two molecular subtypes were identified from the training datasets, in which CD and UC patients were relatively evenly represented in each subtype. We found 6 S1-specific gene modules related to innate\/adaptive immune responses and tissue remodeling and 9 S1-specific cell types (cycling T cells, Tregs, CD8+\u2005lamina propria, follicular B cells, cycling B cells, plasma cells, inflammatory monocytes, inflammatory fibroblasts, and postcapillary venules). Subtype S2 was associated with 3 modules related to metabolism functions and 4 cell types (immature enterocytes, transit amplifying cells, immature goblet cells, and WNT5B+ cells). The subtypes can be replicated in 6 independent datasets based on a 20-gene classifier. Furthermore, response rates to 4 treatments in subtype S2 were significantly higher than those in subtype S1.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>This study discovered and validated a robust transcriptome-based molecular classification shared by CD and UC and built a 20-gene classifier. Because 2 subtypes have different molecular mechanisms and drug response, our classification may aid interpretation of heterogeneous molecular and clinical information in inflammatory bowel disease patients.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/ecco-jcc\/jjae152","type":"journal-article","created":{"date-parts":[[2024,10,3]],"date-time":"2024-10-03T15:25:37Z","timestamp":1727969137000},"source":"Crossref","is-referenced-by-count":10,"title":["Crohn\u2019s Disease and Ulcerative Colitis Share 2 Molecular Subtypes With Different Mechanisms and Drug Responses"],"prefix":"10.1093","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9491-4994","authenticated-orcid":false,"given":"Jing","family":"Wang","sequence":"first","affiliation":[{"name":"Genomic Research Center, AbbVie Inc. , Cambridge, MA ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heath","family":"Guay","sequence":"additional","affiliation":[{"name":"AbbVie 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