Allicin prevents EA. hy926 endothelial cell injury induced by PM2. 5 via inhibiting ERK1/2 pathway
10.3969/j.issn.1001-1978.2016.05.019
- VernacularTitle:大蒜素对PM2．5损伤EA. hy926内皮细胞的保护作用及机制
- Author:
Qiang WAN
;
Yuping YANG
;
Zhongyong LIU
- Publication Type:Journal Article
- Keywords:
PM2 . 5;
allicin;
ERK1/2 signaling path-way;
EA. hy926 cell;
inflammation;
oxidative stress
- From:
Chinese Pharmacological Bulletin
2016;32(5):692-696,697
- CountryChina
- Language:Chinese
-
Abstract:
Aim To investigate the protective effect of allicin against EA. hy926 endothelial cell injury in-duced by PM2. 5 and the possible mechanism. Meth-ods The samples of fine particulate matter ( PM2. 5 ) were collected and made into suspension. Different concentrations of PM2. 5 ( 20 , 200 , 400 mg · L-1 ) were added to EA. hy926 cell. The viability and apop-tosis of EA. hy926 cell, the protein levels of p-ERK1/2, Bax and Bcl-2 in the EA. hy926 cell, the contents of tumor necrosis factor-α( TNF-α) , interleukin-6 ( IL-6 ) , and malonaldehyde ( MDA ) , the activities of su-peroxide dismutase ( SOD ) and lactic dehydrogenase ( LDH) in the EA. hy926 cell culture supernatant were measured by MTT assay, flow cytometry, Western blot, enzyme-linked immunosorbent assay ( ELISA ) and colorimetry, respectively. Allicin at different con-centrations(5,20,40 mg·L-1 ) or a specific inhibitor of ERK1/2 signaling pathway PD98059 ( 20 μmol · L-1 ) was added into the EA. hy926 cell to observe the effect of allicin. Results Compared with control group, PM2. 5 significantly increased the apoptosis, the contents of TNF-α, IL-6 and MDA, the activity of LDH, the protein levels of p-ERK1/2 and Bax/Bcl-2 ratio, but decreased the viability and SOD activity in the EA. hy926 cell(P<0. 05). Compared with PM2. 5 group, allicin significantly decreased the apoptosis, the contents of TNF-α, IL-6 and MDA, the activity of LDH, the protein levels of p-ERK1/2 and Bax/Bcl-2 ratio, but increased the viability and SOD activity in the EA. hy926 cell ( P <0. 05 ) . Conclusion Allicin displays a significant protective effect against EA. hy926 endothelial cell injury induced by PM2 . 5 and its mechanism may be related to the attenuations of in-flammation and oxidative stress via the inhibition of ERK1/2 pathway.
