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Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice
Published on: April 21, 2015
Different activation of TRAF4 and TRAF6 in inflammatory bowel disease
Jun Shen1, Yuqi Qiao, Zhihua Ran
1Key Laboratory of Gastroenterology & Hepatology of Ministry of Health and Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease and Renji Hospital, Shanghai Jiao Tong University School of Medicine, No. 1630 Dongfang Road, Shanghai 200127, China.
Abstract:
In recent years, interests combining the exploration of tumor necrosis factor receptor-associated factor 4 (TRAF4) and TRAF6 in immune cells and transgenic mice are emerging. Although it has been found that TRAF4 and TRAF6 share the same TRAF binding sites, comprehensive study of TRAF4 and TRAF6 in inflammatory bowel disease (IBD) is still lacking. This paper shows similar and different expression patterns of TRAF4 and TRAF6 in patients with IBD. The results indicate that TRAF4 and TRAF6 are overexpressed in IBD. TRAF4 and TRAF6 play different roles in the pathogenesis of IBD. Moreover, TRAF4 may be an indicator of endoscopic disease activity of UC and TRAF6 preactivation can be detected in noninflamed colonic segments.
Insights
Tumor necrosis factor receptor-associated factors 4 and 6 (TRAF4 and TRAF6) are overexpressed in inflammatory bowel disease (IBD). These factors play distinct roles in IBD pathogenesis, with TRAF4 indicating disease activity in ulcerative colitis (UC).
Area of Science:
- Immunology
- Gastroenterology
- Molecular Biology
Background:
- Emerging research explores tumor necrosis factor receptor-associated factor 4 (TRAF4) and TRAF6 in immune cells and mouse models.
- TRAF4 and TRAF6 share TRAF binding sites, but their roles in inflammatory bowel disease (IBD) require comprehensive investigation.
Purpose of the Study:
- To investigate the expression patterns and roles of TRAF4 and TRAF6 in patients with IBD.
- To determine if TRAF4 and TRAF6 expression correlates with disease activity or specific IBD subtypes.
Main Methods:
- Analysis of TRAF4 and TRAF6 expression in patient samples with IBD.
- Comparison of expression patterns between inflamed and non-inflamed tissues.
- Correlation of TRAF4 and TRAF6 levels with clinical and endoscopic disease activity.
Main Results:
- TRAF4 and TRAF6 are significantly overexpressed in patients with IBD compared to controls.
- TRAF4 and TRAF6 exhibit distinct expression patterns within IBD.
- TRAF4 expression correlates with endoscopic disease activity in ulcerative colitis (UC).
- TRAF6 preactivation is detectable in non-inflamed colonic segments of IBD patients.
Conclusions:
- TRAF4 and TRAF6 are implicated in the pathogenesis of IBD.
- TRAF4 and TRAF6 play differential roles in IBD development and progression.
- TRAF4 may serve as a biomarker for endoscopic disease activity in UC.
- TRAF6 activation occurs even in non-inflamed areas, suggesting early or widespread immune involvement.
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