Coriolus versicolor suppresses inflammatory bowel disease by Inhibiting the expression of STAT1 and STAT6 associated with IFN-γ and IL-4 expression

Phytother Res. 2011 Aug;25(8):1257-61. doi: 10.1002/ptr.3378. Epub 2011 Feb 7.


To investigate the effects of Coriolus versicolor extract (CVE) on infl ammatory bowel disease (IBD), ulcerative colitis was induced in male BALb/c mice by administering drinking water containing dextran-sulfate sodium (DSS). The mice were divided into the following four experimental groups: control, DSS-induced colitis, CVE treatment and CVE treatment + DSS-induced colitis. Mice receiving DSS treatment developed clinical and macroscopic signs of ulcerative colitis. However, treatment with CVE relieved the symptoms of IBD, including the decrease in body and organ weight. The levels of serum, spleen and mesenteric lymph node IgE in the CVE-treated groups was lower compared with the untreated groups. The antiinfl ammatory response upon CVE treatment correlated with the reduced expression of TNF-α, IL-1β and IL-6. Also, there was a significant reduction in the expression of STAT1 and STAT6 molecules, thereby leading to lower IFN-γ and IL-4 expression. Therefore, the antiinfl ammatory effects of Coriolus versicolor can be explained by its ability to inhibit certain proinflammatory cytokines.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / pharmacology
  • Body Weight / drug effects
  • Coriolaceae / chemistry*
  • Immunoglobulin A / blood
  • Immunoglobulin E / blood
  • Inflammatory Bowel Diseases / drug therapy*
  • Inflammatory Bowel Diseases / immunology
  • Inflammatory Bowel Diseases / metabolism
  • Interferon-gamma / biosynthesis*
  • Interleukin-4 / biosynthesis*
  • Intestines / anatomy & histology
  • Intestines / drug effects
  • Male
  • Mice
  • Mice, Inbred BALB C
  • Organ Size / drug effects
  • Plant Extracts / pharmacology*
  • STAT1 Transcription Factor / antagonists & inhibitors*
  • STAT1 Transcription Factor / biosynthesis
  • STAT6 Transcription Factor / antagonists & inhibitors*
  • STAT6 Transcription Factor / biosynthesis


  • Anti-Inflammatory Agents
  • Immunoglobulin A
  • Plant Extracts
  • STAT1 Transcription Factor
  • STAT6 Transcription Factor
  • Stat1 protein, mouse
  • Stat6 protein, mouse
  • Interleukin-4
  • Immunoglobulin E
  • Interferon-gamma