Study on protective effect and mechanism of phenolic acid components from Salvia deserta Schang on oxidative injury of HK -2 cells
- VernacularTitle:新疆鼠尾草酚酸类成分对HK-2细胞氧化损伤的保护作用及机制研究
- Author:
Xiaomei WANG
1
;
Chunhui REN
2
;
Xinling WANG
1
;
Yakufu MIRENSHA
1
;
Junping HU
1
Author Information
1. College of Pharmacy，Xinjiang Medical University，Urumqi 830017，China
2. Dept. of Pharmacy，Yili Prefecture Youyi Hospital of Xinjiang，Xinjiang Yining 835099，China
- Publication Type:Journal Article
- Keywords:
Salvia deserta Schang;
phenolic acid;
human renal tubular epithelial cells HK -2;
oxidative injury;
Kelch-like
- From:
China Pharmacy
2022;33(19):2348-2353
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To study the protective effect of phenolic acid components from Salvia deserta Schang on the oxidative stress injury of human renal tubular epithelial cells HK -2 induced by high glucose and high fat . METHODS HK-2 cells were divided into control group ，model group ，canagliflozin group （positive control group ，15 μmol/L），purified product of phenolic acids from S. deserta Schang group （10.8 μg/mL），4 monomers group （salvianic acid ，protocatechuic aldehyde ，caffeic acid，rosmarinic acid ，50 μmol/L）. In addition to the control group ，cell injury model of high glucose and high fat was established in other groups （500 μmol/L palmitic acid+ 30 mmol/L glucose for 48 h）and cultured for 48 h. The cell apoptotic rate ，the contents of malondialdehyde （MDA）and glutathione （GSH），and the activity of superoxide dismutase （SOD）were detected in each group ； the expression levels of nuclear erythroid 2-related factor 2（Nrf2），Kelch-like ECH -associated protein 1（Keap1）protein，heme oxygenase-1（HO-1）and NADH ：quinone acceptor oxidoreductase 1（NQO1）were determined in above 5 groups（except for salvianic acid ，protocatechuic aldehyde ，caffeic acid ）. RESULTS Compared with control group ，the apoptotic rate of HK -2 cells in model group was increased significantly （P＜0.01）；the content of MDA was increased significantly （P＜0.01），while the content of GSH and the activity of SOD were decreased significantly ；protein expressions of Nrf 2，NQO1 and HO -1 2018D01C169） were significantly down -regulated（P＜0.01），while the protein expression of Keap 1 was up -regulated significantly （P＜0.01）. Compared with model group ， the apoptotic rate and the content of MDA were decreased significantly in administration groups（P＜0.01）；the content of GSH in administration groups and the activity of SOD in purified product of phenolic acids group，protocatechuic aldehyde group and rosmarinic acid group were increased significantly （P＜0.01）. The protein expressions of Nrf2，HO-1 and NQO 1 in purified product of phenolic acids group as well as the protein expression of Nrf 2 in rosmarinic acid group were up -regulated significantly （P＜0.01），while the protein expression of Keap 1 was down -regulated significantly in purified product of phenolic acids group and rosmarinic acid group （P＜0.01）. CONCLUSIONS The phenolic acids components from S. deserta Schang can relieve oxidative stress injury of renal tubular epithelial cells induced by high glucose and high fat ，the mechanism of which may be associated with activating Keap 1/Nrf2 signaling pathway and inhibiting oxidative stress response .
