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Effect of survivin on proliferation and invasion of glioma U87 cells treated by bevacizumab / 中华神经医学杂志
Chinese Journal of Neuromedicine ; (12): 553-558, 2017.
Article en Zh | WPRIM | ID: wpr-1034594
Biblioteca responsable: WPRO
ABSTRACT
Objective To study the effect of survivin on proliferation and invasion of glioma cells treated by bevacizumab (Bev). Methods The human spongioblastoma cell line U87 was routinely cultured in vitro; the growth rates of U87 cells after 0, 2, 4, 6, 8 and 10 mg/mL Bev treatment for 2, 4 and 6 d were determined by MTT assay. The specific shRNA vectors (pRNAT, pRNAT-survivin shRNA, pRNAT-NS si) were transfected into U87 cells; U87, U87/sur(-), U87/pCtrl and U87/NS si cells were cultured for one d, and then, they were divided into 6 groups: U87 cells without Bev treatment, U87/sur (-) cells without Bev treatment, U87 cells with Bev treatment, U87/sur (-) cells with Bev treatment, U87/pCtrl cells with Bev treatment and U87/NS si cells with Bev treatment; 6 mg/mL Bev was given to each Bev treatment group. The cell invasion capacity was determined by Traswell assay; the cell movement and migratory capacities were detected by wound-healing assay, and the cell proliferation was determined by MTT assay. Results The cells treated by Bev at concentrations of 0, 2, 4, or 6 mg/mL exhibited similar viability (P>0.05), while the cells treated by Bev at concentrations of 8 or 10 mg/mL showed significantly decreased viability as compared with cells treated by Bev at concentration of 0 mg/mL (P<0.05). As compared with U87 cells with Bev treatment, U87/sur(-) cells with Bev treatment had significantly decreased viability (P<0.05); U87/sur (-) cells with Bev treatment had significantly decreased viability as compared with U87/sur(-) cells without Bev treatment (P<0.05); as compared with that in the U87 cells without Bevb treatment, the migration distance in the U87 cells with Bev treatment was significantly longer (P<0.05). As compared with that in the U87 cells without Bev treatment, the migration distance in the U87/sur (-) cells with Bev treatment was significantly shorter (P<0.05); as compared with that in the U87 cells without Bev treatment, the number of cells invading into the lower chamber in the U87 cells with Bev treatment was significantly larger (P<0.05); as compared with that in the U87 cells without Bev treatment, the the number of cells invading into the lower chamber in the U87/sur(-) cells with Bev treatment was significantly smaller (P<0.05). Conclusion Down-regulation of survivin could suppress glioma cells invasion induced by Bev treatment, and synergistic effect is observed between down-regulation of survivin and Bev treatment in suppressing the viability of glioma cells.
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Texto completo: 1 Base de datos: WPRIM Idioma: Zh Revista: Chinese Journal of Neuromedicine Año: 2017 Tipo del documento: Article
Texto completo: 1 Base de datos: WPRIM Idioma: Zh Revista: Chinese Journal of Neuromedicine Año: 2017 Tipo del documento: Article