Involvement of Caspase-dependent Mitochondrial Pathway in CORM-2 Induced Apoptosis in Neuronal Cells and Mechanism of Intervention Effect of Xingnaojing Injection
10.11842/wst.2013.08.010
- VernacularTitle:CORM-2通过激活Caspase依赖性线粒体途径诱导神经细胞凋亡及醒脑静对其干预作用的机制研究
- Author:
Yilin LIU
;
Ying HONG
;
Jing WANG
- Publication Type:Journal Article
- Keywords:
CORM-2;
neuronal apoptosis;
Caspase;
mitochondrial pathway;
Xingnaojing Injection
- From:
World Science and Technology-Modernization of Traditional Chinese Medicine
2013;(8):1725-1734
- CountryChina
- Language:Chinese
-
Abstract:
This study was aimed to investigate the mechanism of CO-releasing molecules (CORM-2) induced apoptosis and the intervention effect of Xingnaojing (XNJ) Injection in neuronal cells of rats. Optical microscope was applied to observe morphologic changes of neuronal cells. MTT assay was performed to assess the survival rates of CORM-2 on neuronal cells. Apoptosis was examined by flow cytometric analysis and the expression of relative proteins was measured by western blotting analysis. At the same time the morphologic changes, survival rates and expression of relative proteins of neuronal cells were also checked after XNJ treatment. The results showed that CORM-2 can influence survival rates in a time- and concentration-dependent manner. Survival rates decreased gradually after the cultures subjected to 24 h with 100 μmol·L-1, 200 μmol·L-1, 400 μmol·L-1 and 800 μmol·L-1 of CORM-2. It can induce neuronal apoptosis and activate Caspase-3, Caspase-9 and Cytochrome C in a concentration-dependent manner. The neuronal cells were treated with 200 μmol·L-1 of CORM-2 and then incubated with 10 mL·L-1 and 20 mL·L-1 XNJ injection for 20 h. It turned out early neuronal apoptosis decreased and the expression of Caspase-3, Caspase-9 and Cytochrome C also decreased. To sum up, CORM-2 may induce neuronal apoptosis through Caspase-dependent mitochondrial pathway, which can be intervened by XNJ Injection through inhibiting Caspase-dependent mitochondrial pathway.
