论文部分内容阅读
目的:探讨miR-301a-3p对大鼠星形胶质细胞凋亡与增殖的影响。方法:获取并培养大鼠原代星形胶质细胞，将miR-301a-3p agomir以及antagomir分别转染至细胞。分Blank组、miR-NC对照组、miR-301a组、antagomir组，每组设3个复孔，每孔2×10n 5个细胞，CCK8实验检测各组细胞的增殖能力变化；用流式细胞术及Caspase-3活性检测分析细胞凋亡的情况。n 结果:与Blank组(48 h：0.83±0.09；72 h：1.20±0.21；96 h：1.65±0.17)和miR-NC组(48 h：0.79±0.10；72 h：1.12±0.25；96 h：1.60±0.15)相比，miR-301a组(48 h：1.16±0.07；72 h ：1.56±0.11；96 h：2.13±0.14)细胞的增殖能力显著提高(n P<0.05)，miR-301a组细胞的凋亡率显著下降(Blank组：10.44±1.33，miR-NC组：9.84±1.40，miR-301a组：4.32±0.51，n P<0.05)；而antagomir组(48 h：0.52±0.12；72 h：0.72±0.09；96 h：1.01±0.15)细胞转染后增殖能力较Blank组和miR-NC组显著降低(n P<0.05)，antagomir组细胞的凋亡率显著升高(Blank组：10.44±1.33，miR-NC组：9.84±1.40，antagomir组：21.41±2.57，n P<0.05)。n 结论:miRNA-301a-3p过表达促进大鼠星形胶质细胞的增殖，抑制细胞的凋亡通路，降低细胞的凋亡，从而调控大鼠星形胶质细胞的生物学功能。“,”Objective:To explore the effects of miR-301a-3p on proliferation and apoptosis of astrocytes in rats.Methods:miR-301a-3p agomir and miR-301a-3p antagomir were synthetized and transfected into astrocytes. The cells were divided into Blank group, miR-NC group, miR-301a agomir group and antagomir group.Each group has 3 multiple pores, 2×10n 5 cells per pore. CCK8 method was used to detect proliferation and growth ability of astrocytes in each group. Anncxin V-FITC/PI cytometry and Caspase-3 were used to test apoptosis of cells in each group.n Results:Compared with Blank group (48 h: 0.83±0.09; 72 h: 1.20±0.21; 96 h: 1.65±0.17) and miR-NC group (48 h: 0.79±0.10; 72 h: 1.12±0.25; 96 h: 1.60±0.15), the proliferation ability of miR-301a group (48 h: 1.16±0.07; 72 h: 1.56±0.11; 96 h: 2.13±0.14) was significantly improved (n P<0.05), and the apoptosis rate of miR-301a group decreased significantly (Blank group: 10.44±1.33, miR-NC group: 9.84±1.40, miR-301a group: 4.32±0.51,n P<0.05). Compared with Blank group and miR-NC group, the proliferation ability of the cells in antagomir group (48 h: 0.52±0.12; 72 h: 0.72±0.09; 96 h: 1.01±0.15) decreased significantly (n P<0.05), and the apoptotic rate was significantly increased in the antiagor group (Blank group: 10.44±1.33, miR-NC group: 9.84±1.40, antiagor group: 21.41±2.57,n P<0.05).n Conclusion:miRNA-301a-3p hyperexpression can promote the proliferation of astrocytes and inhibit the apoptosis pathway, thereby regulating the biological function of rat astrocytes.