Effects of Mycobacterium tuberculosis HSP65 on Treg/Th17 immune balance in ApoE-knockout mice
10.11665/j.issn.1000-5048.20160318
- VernacularTitle:Jinqi Jiangtang tablets Drosophila diabetic complications of cardiovascular diseases glucose and lipid metabolism mTOR/4EBP
- Author:
Rongyue CAO
1
;
Xinli ZHANG
;
Dongping YUAN
;
Manman LI
;
Minxia YU
;
Yunfei MA
;
Zitao MIAO
;
Jun LONG
Author Information
1. 中国药科大学生命科学与技术学院
- Publication Type:Journal Article
- Keywords:
HSP65;
atherosclerosis;
Treg;
Th17;
ApoE-knockout
- From:
Journal of China Pharmaceutical University
2016;47(3):353-358
- CountryChina
- Language:Chinese
-
Abstract:
To investigate the effects of Mycobacterium tuberculosis heat shock protein 65(HSP65)on Treg/Th17 immune balance in ApoE-knockout(ApoE-/-)mice, ApoE-/- mice with a high-cholesterol diet were immunized with M. tuberculosis HSP65. Sera were obtained for measurement of anti-HSP65 antibodies by ELISA; the effect of administration of different antigens was investigated, respectively, using flow cytometry analysis on the number of CD4+CD25+Foxp3+Tregs and CD4+IL-17+ Th17; the production of cytokines(IL-10, TGF-β1, IL-17 and IL-21)by these cells were determined by ELISA; total plasma cholesterol(TC), triglyceride(TG), high-density lipoprotein cholesterol(HDL-C)and low-density lipoprotein cholesterol(LDL-C)levels were detected by biochemical autoanalyzer. Atherosclerotic lesions were measured by lipid deposition stained with oil red O. The results demonstrated that the levels of anti-HSP65 IgG antibodies were increased significantly in Mycobacterium tuberculosis HSP65-treated ApoE-/- mice, revealed obvious decrease in Treg number, Treg related cytokines(IL-10, TGF-β1)levels and significant increase in Th17 number, Th17 related cytokines(IL-17 and IL-21)levels, the levels of TC, TG, HDL-C and LDL-C did not change between groups, while the atherosclerotic lesions significantly increased. Results indicate that M. tuberculosis HSP65 could interrupt the Th17/Treg immune balance in ApoE-/- mice, suggesting a potential role in the formation and progression of atherosclerosis.
