LncRNA OIP5-AS1对卵巢上皮IOSE80表型转化的影响

Effect of LncRNA OIP5-AS1 on Phenotypic Transformation of IOSE80 in Ovarian Epithelium

关键词:  卵巢上皮细胞  lncRNA OIP5-AS1  细胞周期  表型

Key words:  ovarian epithelial cell  lncRNA OIP5-AS1  cell cycle  phenotype

摘要:

目的 探索lncRNA OIP5-AS1对卵巢上皮细胞IOSE80发生增殖、迁移、凋亡、侵袭和周期的表型的变化及可能的机制。方法 患者临床资料数据收集自TCGA数据库及GEO数据库，R包分析后可视化OIP5-AS1在卵巢癌组织中表达上调，生存率与OIP5-AS1的相关性采用Kaplan-Meier分析。以慢病毒载体构建OIP5-AS1过表达和沉默的IOSE80细胞模型，采用RT-qPCR验证OIP5-AS1的表达，CCK-8检测细胞增殖，Transwell检测侵袭，划痕试验检测细胞迁移，流式细胞术检测细胞周期和凋亡，Western blotting检测细胞侵袭相关蛋白E钙黏着蛋白(E-cadherin)和N钙黏着蛋白(N-cadherin)的表达及细胞周期蛋白依赖性激酶(cyclin-dependent kinase，CDK)和细胞周期蛋白G相关激酶(cyclin-G-related kinase，GAK)的表达。结果 RT-qPCR结果显示成功构建OIP5-AS1过表达和沉默的IOSE80细胞株。CCK-8结果显示过表达OIP5-AS1促进IOSE80细胞的增殖。划痕试验结果显示过表达OIP5-AS1促进IOSE80细胞迁移。Transwell结果显示过表达OIP5-AS1会引起IOSE80细胞的侵袭力增强。流式细胞术结果表明OIP5-AS1的过表达使IOSE80细胞凋亡减弱并推动了细胞周期的进展。Western blotting结果显示过表达OIP5-AS1会下调E-cadherin的表达并上调N-cadherin的表达，同时过表达OIP5-AS1可提高CDK及GAK蛋白的表达。结论 lncRNA OIP5-AS1通过上调CDK及GAK的表达进一步干预了IOSE80细胞周期的调控，进而实现对卵巢上皮细胞恶性表型的间接调控作用。

Abstract:

OBJECTIVE To explore the phenotypic changes and possible mechanisms of lncRNA OIP5-AS1 on the proliferation, migration, apoptosis, invasion and cycle of ovarian epithelial cells IOSE80. METHODS The clinical data of patients were collected from TCGA database and GEO database. After R package analysis, the differential expression of OIP5-AS1 was visualized in the volcanic map. The correlation between survival rate and OIP5-AS1 was analyzed by Kaplan-Meier. The IOSE80 cell model of OIP5-AS1 over expression and silencing was constructed with lentivirus vector. The expression of OIP5-AS1 was verified by RT-qPCR. Cell proliferation was detected by CCK-8. Invasion was detected by Transwell. Cell migration was detected by scratch test. Cell cycle and apoptosis were detected by flow cytometry. Western blotting was used to detect the expression of E-cadherin and N-cadherin, as well as the expression of cyclin-dependent kinase(CDK) and cyclin-G-related kinase(GAK). RESULTS RT-qPCR results showed that IOSE80 cell lines over expressing and silencing OIP5-AS1 were successfully constructed. CCK-8 results showed that overexpressing OIP5-AS1 promoted the proliferation of IOSE80 cells. Scratch test results showed that overexpressing OIP5-AS1 promoted the migration of IOSE80 cells. Transwell results showed that overexpressing OIP5-AS1 would increase the invasiveness of IOSE80 cells. Flow cytometry results showed that overexpression of OIP5-AS1 weakened the apoptosis of IOSE80 cells and promoted the progress of cell cycle. Western blotting results showed that overexpression of OIP5-AS1 downregulated the expression of E-cadherin and upregulated the expression of N-cadherin, while overexpression of OIP5-AS1 increased the expression of CDK and GAK proteins. CONCLUSION LncRNA OIP5-AS1 further interferes with the regulation of IOSE80 cell cycle by up regulating the expression of CDK and GAK, and then indirectly regulates the malignant phenotype of ovarian epithelial cells.