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Differential regulation of JAK/STAT-signaling in patients with ulcerative colitis and Crohn's disease.


ABSTRACT: In 2018, the pan-Janus kinase (JAK) inhibitor tofacitinib was launched for the treatment of ulcerative colitis (UC). Although tofacitinib has proven efficacious in patients with active UC, it failed in patients with Crohn's disease (CD). This finding strongly hints at a different contribution of JAK signaling in both entities. Here, we review the current knowledge on the interplay between the JAK/signal transducer and activator of transcription (STAT) pathway and inflammatory bowel diseases (IBD). In particular, we provide a detailed overview of the differences and similarities of JAK/STAT-signaling in UC and CD, highlight the impact of the JAK/STAT pathway in experimental colitis models and summarize the published evidence on JAK/STAT-signaling in immune cells of IBD as well as the genetic association between the JAK/STAT pathway and IBD. Finally, we describe novel treatment strategies targeting JAK/STAT inhibition in UC and CD and comment on the limitations and challenges of the new drug class.

SUBMITTER: Cordes F 

PROVIDER: S-EPMC7403801 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Differential regulation of JAK/STAT-signaling in patients with ulcerative colitis and Crohn's disease.

Cordes Friederike F   Foell Dirk D   Ding John Nik JN   Varga Georg G   Bettenworth Dominik D  

World journal of gastroenterology 20200701 28


In 2018, the pan-Janus kinase (JAK) inhibitor tofacitinib was launched for the treatment of ulcerative colitis (UC). Although tofacitinib has proven efficacious in patients with active UC, it failed in patients with Crohn's disease (CD). This finding strongly hints at a different contribution of JAK signaling in both entities. Here, we review the current knowledge on the interplay between the JAK/signal transducer and activator of transcription (STAT) pathway and inflammatory bowel diseases (IBD  ...[more]

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