Therapeutic strategies for targeting the IL-6/STAT3 cytokine signaling pathway in inflammatory bowel disease

Anticancer Res. 2007 Nov-Dec;27(6A):3749-56.

Abstract

Interleukin-6 (IL-6) is a pleiotropic cytokine with central roles in immune and inflammatory reactions. IL-6 first binds to the IL-6 receptor (IL-6R), this complex then associates with gp130, inducing dimerization and the initiation of signaling through signal transducer and activator of transcription-3 (STAT3). Notably, the combination of soluble IL-6 receptor (sIL-6R) and IL-6 stimulates cells that only express gp130 and not IL-6R, a process known as trans-signaling. In contrast, soluble gpl30 (sgp130) serves as a natural inhibitor of trans-signaling. Accumulated evidence strongly supports the hypothesis that the development and perpetuation of inflammatory bowel disease (IBD) relies on IL-6-mediated STAT3 activation on mucosal T-cells. This review looks at therapeutic strategies targeting the IL-6/STAT3 pathway in patients with IBD, including strategies involving the anti-IL-6 receptor antibody and soluble gp130Fc.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Cytokine Receptor gp130 / metabolism
  • Drug Delivery Systems*
  • Humans
  • Inflammatory Bowel Diseases / drug therapy
  • Inflammatory Bowel Diseases / metabolism*
  • Interleukin-6 / antagonists & inhibitors
  • Interleukin-6 / metabolism*
  • Models, Biological
  • STAT3 Transcription Factor / antagonists & inhibitors
  • STAT3 Transcription Factor / metabolism*
  • Signal Transduction

Substances

  • Interleukin-6
  • STAT3 Transcription Factor
  • STAT3 protein, human
  • Cytokine Receptor gp130