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China Journal of Chinese Materia Medica ; (24): 2947-2951, 2014.
Article in Chinese | WPRIM | ID: wpr-327862

ABSTRACT

<p><b>OBJECTIVE</b>To explore the protective effect of baicalin against rotenone-induced injury on PC12 cells, and the po-tential mechanism of action action was also explored.</p><p><b>METHOD</b>PC12 cells were injured by rotenone and were treated with different concentrations (0.1, 1, 10 μmol x L(-1)) of baicalin at the same time. Cell viability was analyzed by MTT, and morphology was observed by phase-contrast microscopy. The cell apoptosis was detected by flow cytometry by Annexin V-FITC/PI staining. The intracellular ROS level was determined by fluorescence microscope with DCF-DA staining. The expression of Bcl-2, Bax and Caspase-3 was analyzed by Western blot.</p><p><b>RESULT</b>The viability of PC12 cells exposure to rotenone for 24 hour was gradually decreased with dose escalating and 1.5 μmol x L was adopted to do the following experiment. Baicalin increased cell viability, improved cell morphology and decreased intracellular ROS level. Moreover, FACS indicated baicalin attenuated the apoptosis induced by rotenone significantly. Western blot showed that Bcl-2, Bax and Caspase-3 expression in rotenone-induced PC12 cells was reversed by baicalin.</p><p><b>CONCLUSION</b>This study has demonstrated that baicalin protects PC12 cells against rotenone-induced apoptosis, at least in part, by scavenging excessive ROS and inhibiting the mitochondrion-dependent apoptotic pathway.</p>


Subject(s)
Animals , Rats , Apoptosis , Caspase 3 , Metabolism , Cell Survival , Cytoprotection , Flavonoids , Pharmacology , Gene Expression Regulation , Intracellular Space , Metabolism , PC12 Cells , Proto-Oncogene Proteins c-bcl-2 , Metabolism , Reactive Oxygen Species , Metabolism , Rotenone , Pharmacology , bcl-2-Associated X Protein , Metabolism
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