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Journal of Zhejiang University. Medical sciences ; (6): 24-29, 2015.
Artículo en Chino | WPRIM | ID: wpr-255239

RESUMEN

<p><b>OBJECTIVE</b>To investigate the protective effects of grape seed proanthocyanidin extracts (GSPE) against CoCl2-induced hypoxic injury in cultured RGC-5 cells.</p><p><b>METHODS</b>CoCl2(400 μmol/L) was used to induce hypoxic injury in cultured RGC-5 cells; the cells were pretreated with 0,100,200,400 and 800μmol/L GSPE for 24h. The cell viability was assayed by MTT; the apoptosis was detected by Hoechst 33342 staining; the intracellular reactive oxygen species (ROS) was measured by H2DCFDA oxidative reaction. The mRNA expression of Bcl-2, caspase 9 and caspase 3 was determined by real-time PCR.</p><p><b>RESULTS</b>Compared to hypoxic control group, pretreatment with GSPE significantly increased viability of RGC-5 cells (P<0.001), reduced cell apoptosis (P<0 .001) and intracellular ROS(P <0 .001). In addition, GSPE significantly increased the mRNA expression of Bcl-2(P<0 .001) and decreased mRNA expression of caspase 9(P<0 .001) and caspase 3(P<0 .001) compared to hypoxic control group.</p><p><b>CONCLUSION</b>GSPE may have a protective effect against CoCl2-induced hypoxic injury in cultured RGC-5 cells. The decrease of intercellular ROS, up-regulation of Bcl-2 and down-regulation of caspase 9 and caspase 3 may be involved in the mechanism of the protective effect of GSPE.</p>


Asunto(s)
Animales , Apoptosis , Caspasa 3 , Metabolismo , Caspasa 9 , Metabolismo , Hipoxia de la Célula , Línea Celular , Supervivencia Celular , Cobalto , Regulación hacia Abajo , Extracto de Semillas de Uva , Farmacología , Proantocianidinas , Farmacología , Proteínas Proto-Oncogénicas c-bcl-2 , Metabolismo , Especies Reactivas de Oxígeno , Metabolismo , Regulación hacia Arriba
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