Protective effect of GLP-1 against AGEs-induced H9 C2 myocardial cell apoptosis
10.3969/j.issn.1001-1978.2017.01.021
- VernacularTitle:GLP-1对AGEs诱导H9 C2心肌细胞凋亡的保护作用研究
- Author:
Jun ZHANG
;
Xiang GU
;
Wenyin HUANG
;
Puhua ZHANG
;
Changchang YING
;
Huan YU
;
Yiping ZHANG
;
Lili WANG
;
Weidong LI
- Keywords:
GLP-1;
AGEs;
ROS;
H9 C2 cardiomyo-cytes;
apoptosis;
myocardial preservation;
mechanism
- From:
Chinese Pharmacological Bulletin
2017;33(1):120-125,126
- CountryChina
- Language:Chinese
-
Abstract:
Aim To investigate the protective effect of Glucogon like pep tide-1 (GLP-1 )on H9C2 cardio-myocytes against AGEs-induced apoptosis and the po-tential molecular mechanisms.Methods H9 C2 car-diomyocytes cells cultured in vitro were divided into the following groups:normal control group ,1 0 0 mg · L-1 AGEs group,100 mg·L-1 AGEs+10 nmol·L-1 GLP-1 group,100 mg·L-1 AGEs+5 mmol·L-1 N-acetyl-cysteine (NAC)group.Cell viabillity rate was meas-ured by CCK-8 assay,ROS production was measured by DCFH-DA fluorescent probe;Cells in different groups were stained with Annexin V-FITC/PI and then apoptotic rate was detected by flow cytometry;Nucleus morphology was observed under fluorescence micro-scope after being incubated with Honchest 33258;Bax, Bcl-2 mRNA gene expression was measured using RT-PCR;Western blot was applied to assess the apoptotic components expression including Bax and Bcl-2.Re-sult Compared with control group,cell viability rate in AGEs group was decreased in a dose-dependent manner;cell apoptosis and ROS production in H9 C2 cells were remarkably increased in AGEs group.How-ever,compared with AGEs group,GLP-1 reduced ROS production and ameliorated cell apoptosis caused by AGEs;the expression of pro-apototic proteins Bax was decreased,the expression of anti-apoptotic proteins like Bcl-2 was increased. Conclusion GLP-1 protects H9 C2 cardiomyocytes against AGEs-induced apoptosis, which may be related to the reduction of the active oxy-gen (ROS).
