OBJECTIVE: To study the effect of salvianolic acid B (SAB) and curcumin, the extracts of Salvia Miltiorrhiza and Curcuma Longa, on the proliferation and activation of hepatic stellate cell (HSC), and the extracellular signal regulated kinase (ERK) expression in it. METHODS: Rat's HSC-T6 were cultured and treated by SAB or curcumin. The inhibitory effect on cell proliferation was determined by 3-(4, 5-dimthyl-2-2thiazoly)-2, 5-diphenyl-2H-tetrazolium bromide (MTT) colorimetry, and the expression levels of alpha smooth actin (alpha-SMA), collagen type I, and ERK were determined by Western blot. RESULTS: SAB and curcumin inhibited the proliferation and activation of rat's HSC-T6 in dose-dependent fashion and significantly reduced the expression level of alpha-SMA (P < 0.01). Curcumin significantly reduced the expression of collagen type I (P < 0.05). Both SAB and curcumin showed insignificant effect on the ERK expression level, but they could significantly reduce the level of phosphorylated-ERK expression, showing significant difference as compared with that in the control group (P < 0.01 and P < 0.05 respectively). CONCLUSION: SAB and curcumin could significantly inhibit the proliferation, activation of HSC, and the production of type I collagen in HSC, the mechanism may be associated with their inhibition on ERK phosphorylation.
OBJECTIVE: To study the effect of salvianolic acid B (SAB) and curcumin, the extracts of Salvia Miltiorrhiza and Curcuma Longa, on the proliferation and activation of hepatic stellate cell (HSC), and the extracellular signal regulated kinase (ERK) expression in it. METHODS:Rat's HSC-T6 were cultured and treated by SAB or curcumin. The inhibitory effect on cell proliferation was determined by 3-(4, 5-dimthyl-2-2thiazoly)-2, 5-diphenyl-2H-tetrazolium bromide (MTT) colorimetry, and the expression levels of alpha smooth actin (alpha-SMA), collagen type I, and ERK were determined by Western blot. RESULTS:SAB and curcumin inhibited the proliferation and activation of rat's HSC-T6 in dose-dependent fashion and significantly reduced the expression level of alpha-SMA (P < 0.01). Curcumin significantly reduced the expression of collagen type I (P < 0.05). Both SAB and curcumin showed insignificant effect on the ERK expression level, but they could significantly reduce the level of phosphorylated-ERK expression, showing significant difference as compared with that in the control group (P < 0.01 and P < 0.05 respectively). CONCLUSION:SAB and curcumin could significantly inhibit the proliferation, activation of HSC, and the production of type I collagen in HSC, the mechanism may be associated with their inhibition on ERK phosphorylation.
Authors: F Marra; M C Arrighi; M Fazi; A Caligiuri; M Pinzani; R G Romanelli; E Efsen; G Laffi; P Gentilini Journal: Hepatology Date: 1999-10 Impact factor: 17.425
Authors: Neeraj K Saxena; Mark A Titus; Xiaokun Ding; Jeffrey Floyd; Shanthi Srinivasan; Shanthi V Sitaraman; Frank A Anania Journal: FASEB J Date: 2004-08-19 Impact factor: 5.191
Authors: Monica R Smith; Srinivasa R Gangireddy; Venkata R Narala; Cory M Hogaboam; Theodore J Standiford; Paul J Christensen; Anand K Kondapi; Raju C Reddy Journal: Am J Physiol Lung Cell Mol Physiol Date: 2010-01-08 Impact factor: 5.464
Authors: Florent Duval; Jorge E Moreno-Cuevas; María Teresa González-Garza; Carlos Rodríguez-Montalvo; Delia Elva Cruz-Vega Journal: Chin Med Date: 2014-12-24 Impact factor: 5.455