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Mechanisms for inhibition effects of polypeptide extract from scorpion venom (PESV) on proliferation of A549 cell lines in vitro / 中国中药杂志
China Journal of Chinese Materia Medica ; (24): 1620-1623, 2012.
Article in Chinese | WPRIM | ID: wpr-266963
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the mechanisms for inhibition effects of PESV on proliferation of non-small cell lung cancer cell line A549.</p><p><b>METHOD</b>MTT was used to observe cell growth and proliferation of A549 at different concentrations of PESV. Flow cytometry (FCM) was applied to analyze cell cycle distribution. Immunocytochemistry and western blot assay was recruited to detect the expression of VEGF, HIF-1alpha, PTEN after the intervention of PESV.</p><p><b>RESULT</b>A549 cells may be arrested mainly in G0/G1 phase and cell proliferation was significantly inhibited (P < 0.01) after PESV intervention in a certain range of concentration. PESV can significantly reduce the expression of HIF-1alpha,VEGF and increase the expression of PTEN.</p><p><b>CONCLUSION</b>PESV can block cell cycle and inhibit angiogenesis directly to inhibit cell proliferation of non-small cell lung cancer cell line A549 mainly through reducing the expression of HIF-1alpha, VEGF and increasing the expression of PTEN.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Peptides / Pharmacology / Scorpion Venoms / Gene Expression Regulation, Neoplastic / Cell Cycle / Chemistry / Cell Line, Tumor / Vascular Endothelial Growth Factor A / Cell Proliferation / PTEN Phosphohydrolase Limits: Humans Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2012 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Peptides / Pharmacology / Scorpion Venoms / Gene Expression Regulation, Neoplastic / Cell Cycle / Chemistry / Cell Line, Tumor / Vascular Endothelial Growth Factor A / Cell Proliferation / PTEN Phosphohydrolase Limits: Humans Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2012 Type: Article