Repurposing TAK875 as a novel STAT3 inhibitor for treating inflammatory bowel disease

Biochem Pharmacol. 2024 Jan:219:115957. doi: 10.1016/j.bcp.2023.115957. Epub 2023 Dec 2.

Abstract

Inflammatory bowel disease (IBD) is a chronic immune-mediated disease associated with a high recurrence rate and an elevated risk of colon cancer. In this study, we screened a bioactive compound library using a luciferase reporter assay and identified the compound TAK875 as a novel inhibitor of signal transducer and activator of transcription 3 (STAT3). Surface plasmon resonance analysis, differential scanning fluorimetry, and isothermal titration calorimetry demonstrated that TAK875 directly bound to recombinant STAT3. TAK875 suppressed the lipopolysaccharide (LPS)-induced release of nitric oxide, inducible nitric oxide synthase, and inflammatory factors in RAW264.7 cells, likely by inhibiting STAT3 phosphorylation. In addition, TAK875 inhibited the differentiation of CD4+ T cells into T-helper 17 cells, which may partially account for its anti-inflammatory effect. TAK875 also alleviated the LPS-induced accumulation of intracellular reactive oxygen species, thus displaying its antioxidant effects. Finally, we demonstrated its satisfactory anti-inflammatory effect in a dextran sulfate sodium-induced mouse model of ulcerative colitis. In conclusion, this study presented TAK875 as a novel STAT3 inhibitor and demonstrated its anti-inflammatory and antioxidant effects both in vitro and in vivo.

Keywords: Anti-inflammatory; Inflammatory bowel disease; ROS; STAT3; TAK875.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / pharmacology
  • Antioxidants / pharmacology
  • Inflammatory Bowel Diseases* / drug therapy
  • Lipopolysaccharides
  • Mice
  • NF-kappa B / metabolism
  • STAT3 Transcription Factor* / antagonists & inhibitors
  • Signal Transduction*

Substances

  • Anti-Inflammatory Agents
  • Antioxidants
  • Lipopolysaccharides
  • NF-kappa B
  • STAT3 Transcription Factor
  • TAK-875