miR-211 对上皮性卵巢癌细胞HO8910 增殖及细胞周期相关蛋白的影响

目的:探讨miR-211 与上皮性卵巢癌发生的关系,及其对卵巢癌细胞增殖的影响。方法:对30 例上皮性卵巢癌组织标本及卵巢癌细胞系HO8910 中miR-211、Cyclin D1 和CDK6 表达情况进行研究,同时选取30 例非卵巢癌患者组织标本及正常卵巢上皮细胞株IOSE80 作为对照,并分析上皮性卵巢癌组织及卵巢癌细胞系中miR-211、Cyclin D1、CDK6 表达情况及表达相关性;miR-211 对卵巢癌细胞增殖,以及对Cyclin D1 和CDK6 表达的影响。结果:卵巢癌组织miR-211 相对表达水平显著低于正常组织(P<0.05),卵巢癌细胞中miR-211 相对表达水平显著低于正常卵巢上皮细胞(P<0.05);在上皮性卵巢癌细胞系HO8910 中,第3 天和第4 天miR-211 组细胞数显著低于miR-Ctrl (P<0.05);上皮性卵巢癌组织中Cyclin D1、CDK6相对表达水平显著高于正常卵巢上皮组织(P<0.05);上皮性卵巢癌细胞系中miR-211 显著抑制Cyclin D1 和CDK6 的表达;在卵巢癌组织中,Spearman 相关性分析结果显示miR-211 和Cyclin D1 和CDK6 相对表达水平呈负相关(r =-0.583,P =0.010)。结论:miR-211 可抑制卵巢癌细胞增殖,并抑制周期相关蛋白Cyclin D1 和CDK6 的表达,miR-211 与周期相关蛋白Cyclin D1 和CDK6 在卵巢癌发生中可能存在调控关系。

Effect of miR-211 on proliferation and cell cycle related proteins of epithelial ovarian cancer cell line HO8910

Objective:To investigate the relationship between miR-211 and the occurrence of epithelial ovarian cancer,and its influence on the proliferation of ovarian cancer cells.Methods: To analyze the expression miR-211,CDK6 and Cyclin D1 of 30 cases of ovarian cancer and ovarian cancer cell lines,and 30 cases of non-ovarian cancer tissues and the normal ovarian epithelial cells were selected as the control group,and to analyze effects of miR-211 on the proliferation of ovarian cancer cells,as well as the Cyclin D1 and CDK6.Results: miR-211 relative expression level of ovarian cancer tissue was significantly lower than that in the normal group (P<0.05).Relative expression level of miR-211 of ovarian cancer cells was significantly lower than that in normal ovarian epithelial cells (P< 0.05);in epithelial ovarian cancer cell line HO8910,cell number of miR-211 on the 3-day and the 4-day was significantly lower than that of miR-Ctrl group (P< 0.05);relative expression levels of Cyclin D1 and CDK6 in epithelial ovarian cancer were significantly higher than those in normal ovarian epithelial tissues (P<0.05);miR-211 of epithelial ovarian cancer cell lines significantly inhibited Cyclin D1 and CDK6 expression;in ovarian cancer tissues,Spearman correlation analysis results showed that relative expression levels of miR-211 and Cyclin D1 and CDK6 was negatively correlated (r = - 0.583,P = 0.010) .Conclusion: miR-211 can inhibit the proliferation of ovarian cancer cells,and inhibit the expression of Cyclin D1 and CDK6;miR-211,Cyclin D1 and CDK6 in ovarian cancer may be involved in the regulation of ovarian cancer.