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Journal of Southern Medical University ; (12): 732-733, 2009.
Artigo em Chinês | WPRIM | ID: wpr-233697

RESUMO

<p><b>OBJECTIVE</b>To investigate the effect of angiotensin II and angiotensin1-7 on alpha-smooth muscle actin (alpha-SMA)-induced Ca(2+)-independent pathways mediated by Rho kinase2 in hepatic stellate cells (HSCs).</p><p><b>METHODS</b>HSC-T6 cells were treated with 10 micromol/L of AngII, Ang1-7, AngII +Ang1-7, and Ang1-7+A779. RT-PCR was used to detect the expression of Rho kinase2 (Rock2) in Ca(2+)-independent pathways, and alpha-SMA protein expression was detected by Western blotting.</p><p><b>RESULTS</b>The mRNA expression of Rock2 increased significantly in the cells after AngII treatment (P<0.01), but decreased following Ang1-7 treatment. Ang1-7 treatment significantly reduced alpha-SMA level in AngII-induced cells (P<0.01).</p><p><b>CONCLUSION</b>Ang1-7 can inhibit AngII-induced activation of Rock2 and reduce alpha-SMA expression in HSCs.</p>


Assuntos
Animais , Ratos , Actinas , Metabolismo , Angiotensina I , Farmacologia , Angiotensina II , Farmacologia , Cálcio , Metabolismo , Linhagem Celular , Regulação da Expressão Gênica , Células Estreladas do Fígado , Biologia Celular , Metabolismo , Fragmentos de Peptídeos , Farmacologia , RNA Mensageiro , Genética , Metabolismo , Transdução de Sinais , Quinases Associadas a rho , Genética
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