[Effect of tanshinone II A on TLR4 and TNF-α of endothelial cells induced by LPS]

Autor: Lian-qun, Jia, Jun-yi, Feng, Guan-lin, Yang, Wen-na, Chen, Yang, Chen
Rok vydání: 2011
Předmět:
Zdroj: Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology. 27(7)
ISSN: 1007-8738
Popis: To observe the influence of tanshinone II A on the expression of toll like receptor 4(TLR4) and tumor necrosis factor-α(TNF-α) in cultured human umbilical veins endothelial cells EA.hy926 induced by LPS, and to investigate the molecular mechanism of tanshinone II A against atherosclerosis(AS).The EA.hy926 cells were cultured in vitro. The mRNA and protein expression of TLR4 were tested by RT-PCR and immunocytochemistry technique respectively. The mRNA and protein expression of TNF-α were detected by RT-PCR and ELISA technique respectively.The expression of TLR4 and TNF-α were both increased compared to normal group after stimulation of LPS(P0.05). The expression of TLR4 and TNF-α in tanshinone II A group were obviously inhibited compared to stimulation group(P0.05).The molecular mechanism of tanshinone II A against AS is probably to inhibit the expression of TLR4 and TNF-α.
Databáze: OpenAIRE