Ginsenoside Rgl regulates NOX2-NLRP1 pathway to reduce hypoxia-reoxygenation injury in PC12 cells
10.3969/j.issn.1001-1978.2021.08.007
- Author:
Rong-Rong HUANG
1
;
Song-Xia LU
1
;
Ling-Ling SUN
2
;
Han ZHANG
2
;
Shi-Xin DING
2
;
Wei-Zu LI
2
Author Information
1. Anhui Xinhua University, Dept of Pharmacology
2. Ministry of Education/Key Laboratory of Chinese Medicine Research and Development, Key Laboratory of Anti-inflammatory and Immunopharmacology, Anhui Medical University, Dept of Pharmacology, State Administration of Traditional Chinese Medicine
- Publication Type:Journal Article
- Keywords:
cerebral ischemia- reperfusion injury;
ginsenoside Rgl;
NADPH oxidase 2;
NLRP1 inflammasome;
OGD/R model;
PCI2 cells
- From:
Chinese Pharmacological Bulletin
2021;37(8):1068-1075
- CountryChina
- Language:Chinese
-
Abstract:
Aim To investigate the effect of ginsenoside Rgl on PC 12 cell hypoxia-reoxygenation injury and its possible mechanism. Methods PC 12 cells were randomly divided into six groups. Except for the blank control group, all the other groups were hypoxia and hypoglycemia for 6 hours, and then reoxygenated and glycosylated for 24 hours to make OGD/R models. Each drug group was given corresponding drugs 2 hours before modeling pretreatment. DCFH-DA method was used to detect the ROS production in cells, Annexin V- FITC/PI double staining method was performed to detect cell apoptosis rate, ELISA method was used to detect LDH activity and IL-1 (3 content in cell supernatant, and Western blot was applied to detect the ex- pression of proteins of N0X2, p22phox, p47phox, NLRPl, ASC, Caspase-1, PSD95, Tau, p-Tau and observe the intervention effect of ginsenoside Rgl. Re sults Tempol, Apocynin and Rgl (5, 10 jjLmol • L"1) groups could significantly inhibit ROS production and apoptosis, reduce LDH release and IL-1 (3 content in cell supernatant; Apocynin and Rgl (5, 10 |xmol • L"1) groups could significantly down-regulate the expression of N0X2, p22phox and p47phox in cells. The Tempol, Apocynin and Rgl (5, 10 jxmol • L"1 ) groups could significantly decrease the protein expression of NLRP1, Caspase-1, ASC, IL-1 (3 and p-Tau, and markedly down-regulate the expression of PSD95 protein. Conclusion Rgl is likely to reduce the is- chemia-reperfusion injury of PC 12 cells by inhibiting the NOX2-NLRP1 pathway.
