題名:Tanshinone IIA from Salvia miltiorrhiza Induces Heme Oxygenase1 Expression and Inhibits Lipopolysaccharide -Induced Nitric Oxide Expression in RAW 264.7 Cells
作者:李宏謨; 高淑慧
Chen TH; Hsu YT; Chen CH; Kao SH; Lee HM; 貢獻者:醫學檢驗暨生物技術學系
上傳時間:2009-08-25T02:39:04Z
摘要:Tanshinone IIA exerts anti-inflammatory effects and influences electron transfer reaction in mitochondria. In the present study, we
demonstrated that tanshinone IIA increased intracellular production of reactive oxygen species (ROS), which in turn induces heme
oxygenase-1 (HO-oxygenase-1) expression in RAW 264.7 macrophages. Tanshinone IIA inhibited COX-2 and iNOS expression in
lipopolysaccharideactivated
RAW 264.7 macrophages. Inhibition of HO-1 or scavenging of CO significantly reversed the inhibition of LPS-stimulated
nitrite accumulation by tanshinone IIA, suggesting a novel role of HO-1 in the anti-inflammatory effect of tanshinone IIA.