Modified Kongsheng Zhenzhong Dan Medicated Serum Regulates SIRT1/PGC-1α Pathway to Improve Mitochondrial Function of PC12 Cells After Oxygen-Glucose Deprivation/Reperfusion
10.19378/j.issn.1003-9783.2024.07.006
- VernacularTitle:加味孔圣枕中丹含药血清调控SIRT1/PGC-1α通路改善氧糖剥夺再灌注PC12细胞的线粒体功能
- Author:
Qiaolan WU
1
;
Chunxue OU
;
Xiaolin WU
;
Zu GAO
;
Jiayun WANG
;
Huayun YU
Author Information
1. 山东中医药大学中医学院,山东 济南 250355
- Keywords:
Modified Kongsheng Zhenzhong Dan;
ischemic stroke;
cerebral ischaemia-reperfusion injury;
drug-containing serum of rats;
PC12 cells;
oxygen-glucose deprivation/reperfusion;
mitochondrial function;
SIRT1/PGC-1α pathway
- From:
Traditional Chinese Drug Research & Clinical Pharmacology
2024;35(7):985-992
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the improvement effect and mechanism of Modified Kongsheng Zhenzhong Dan medicated serum on mitochondrial function of PC12 cells injured by oxygen-glucose deprivation/reperfusion(OGD/R)based on the SIRT1/PGC-1α pathway.Methods PC12 cells were used to construct OGD/R cell model in vitro.Cell grouping:normal group(10%FBS),model group(10%FBS),10%drug-containing serum group,5%drug-containing serum group(5%drug-containing serum+5%blank serum),10%blank serum group(control group).CCK-8 method was used to detect the cell survival rate,and the appropriate oxygen glucose deprivation time(2,4,6,8 hours)was screened.MTT assay was used to detect cell activity;mitochondrial stress test(MST)was used to detect the oxygen consumption rate(OCR).Apoptosis was detected by flow cytometry(Annexin V-PE/7-AAD double staining).The protein expression levels of SIRT1 and PGC-1α in PC12 cells were detected by Western Blot.Results Compared with the normal group,the activity of PC12 cells decreased significantly after oxygen-glucose deprivation for 2,4,6 and 8 hours(P＜0.05),and 6 hours of oxygen-glucose deprivation was selected as the time of subsequent experimental modeling.Compared with the normal group,the cell activity of the model group was significantly decreased(P＜0.05).The OCR values of basic respiration value,maximum respiration value,proton leakage,ATP production and standby respiration ability were significantly decreased(P＜0.05).The apoptosis rate was significantly increased(P＜0.05).The protein expression levels of SIRT1 and PGC-1α in cells were significantly decreased(P＜0.05).Compared with the model group,the cell activity of the Modified Kongsheng Zhenzhong Dan 10%and 5%drug-containing serum groups was significantly increased(P＜0.05).The OCR values of basal respiration value,maximum respiration value,proton leakage,ATP production and spare breathing ability were significantly increased(P＜0.05).The apoptosis rate was significantly decreased(P＜0.05).The protein expression levels of SIRT1 and PGC-1α in cells were significantly increased(P＜0.05).Conclusion The Modified Kongsheng Zhenzhong Dan medicated serum can improve mitochondrial dysfunction,inhibit neuronal apoptosis and promote neuronal survival in OGD/R-injured PC12 cells.The mechanism may be related to the activation of SIRT1/PGC-1α signaling pathway.
