Preinduced intestinal HSP70 improves visceral hypersensitivity and abnormal intestinal motility in PI-IBS mouse model
10.1016/j.apjtm.2016.01.022
- Author:
Cheng LAN
1
;
Xiao-Ning SUN
1
;
Xu-Chun ZHOU
1
;
Bai-Li HUANG
1
;
Tao-Zhi DENG
1
;
Zhou-Tao HE
1
;
Xiang-Yang HAN
1
;
Bo YANG
2
Author Information
1. Department of Gastroenterology, Hainan Provincial General Hospital
2. Department of Gastroenterology, 1st Affiliated Hospital of Chongqing Medical University
- Publication Type:Journal Article
- Keywords:
Heat shock protein 70;
Intestinal motility;
Post-infectious irritable bowel syndrome;
Proinflammatory cytokine;
Visceral hypersensitivity
- From:
Asian Pacific Journal of Tropical Medicine
2016;9(3):302-305
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the impact of the preinduced intestinal heat shock protein 70 (HSP70) on the visceral hypersensitivity and abnormal intestinal motility in a post-infectious irritable bowel syndrome (PI-IBS) mouse model. Methods: Eighty-four female C57BL/6 mice were randomly assigned to four groups: control group (n = 21) and induction + PI-IBS group (n = 21), PI-IBS group (n = 21) and induction group (n = 21). The mice in PI-IBS group were infected in vivo with Trichinella spiralis by oral administration. The visceral hypersensitivity and intestinal motility were evaluated respectively with abdominal withdrawal reflex and colon transportation test. The intestinal HSP70 protein and mRNA level was measured by Western blot and real-time PCR. Meanwhile, the intestinal proinflammatory cytokines IL-10 and TNF-α level was detected by ELISA. Results: Compared with their counterparts in PI-IBS group, the animals in the Induction + PI-IBS group show significantly increased intestinal level of HSP70 and obviously ameliorative clinical figures, including abdominal withdrawal reflex score, intestine transportation time and Bristol scores (P < 0.05). Meanwhile, the intestinal post-inflammatory cytokines remarkably changed, including increased IL-10 level and decreased TNF-α level (P < 0.05). Conclusions: Intestinal HSP70 may play a potential protective role through improving the imbalance between the intestinal post-inflammatory and anti-inflammatory cytokines in PI-IBS.
