Effects of C-reactive protein on the expression of high-molecular-weight adiponectin and assembly of adi-ponectin
10.16571/j.cnki.1008-8199.2016.03.002
- VernacularTitle:C反应蛋白对3T3-L1脂肪细胞内高分子量多聚体脂联素表达和脂联素多聚化水平的影响
- Author:
Yuanxin LIU
;
Houxia SHI
;
Cuiping LIU
;
Su WANG
;
Qichao YANG
;
Dan JIANG
;
Ling YANG
;
Guoyue YUAN
- Publication Type:Journal Article
- Keywords:
C-reactive protein;
Adiponectin;
High-molecular-weight adiponectin;
Adipocytes
- From:
Journal of Medical Postgraduates
2016;29(3):230-234
- CountryChina
- Language:Chinese
-
Abstract:
[Abstract ] Objective C reactive protein (CRP), an in-flammatory maker, increased significantly among diabetes mellitus and other metabolic diseases.Meanwhile, adiponectin plays a vital role in anti-atherogenic, anti-inflammatory and anti-diabetic poten-tials.Further, it decreased in diabetes mellitus.To investigate the effects of C-reactive protein in the expression of high-molecular-weight adiponectin ( HMWA) and adiponectin multimerization. Methods The fully differentiated 3T3-L1 cells were respectively treated with 50μg/mL CRP for 0 h、6 h、12 h and 24 h , and different doses of CRP with 0μg/mL、5μg/mL、25μg/mL、50μg/mL for 24 h.The expres-sion of HMWA was further detected by Western blot.Additionally,
the mRNA expressions of adiponectin assembly related genes ( Ero1-L、DsbA-L、ERp44 ) were detected by Real time PCR after 50μg/mL CRP treatment for 24 h. Results After 24 h treatment, 25μg/mL CRP and 50μg/mL CRP resulted in a substantial reduction ( [70 ±7]%vs [44 ±7]%, P<0.05) while 5μg/mL CRP revealed no change.With the dose of 50μg/mL CRP treated, the ex-pression of HWMA were both inhibited after the 12 h and 24 h CRP treatment ([71 ±6]%vs [48 ±11]%, P<0.05), but for the 6 h CRP treatment group, HWMA remained unchanged.Additionally, CRP inhibited Ero1-L(86 ±10)%and DsbA-L(72 ±6)%gene expression and upregulated the expression of ERp44(141 ±23)%. Conclusion CRP decreases HMWA expression in a dose and time-dependent manner and inhibits the multimerization of adiponectin, thus weaken the benefits of adiponectin in diabetes.
