实用医学杂志 ›› 2021, Vol. 37 ›› Issue (2): 195-200.doi: 10.3969/j.issn.1006⁃5725.2021.02.013

• 基础研究 • 上一篇    下一篇

长基因间非编码RNA00689靶向miR⁃876⁃5p调控膀胱癌T24细胞增殖和凋亡的机制

杨文博,许振丹,耿帅
  

  1. 新乡市中心医院1 泌尿外二科,2 风湿免疫科,3 麻醉手术部(河南新乡 453000)
  • 出版日期:2021-01-25 发布日期:2021-01-25
  • 基金资助:
    2018 年度河南省医学科技攻关计划项目(编号:201820938)

Effect of LINC00689 on proliferation and apoptosis of bladder cancer T24 cells through targeting miR⁃876⁃ 5p

YANG Wenbo,XU Zhendan,GENG Shuai
  

  1. Department of Urinary Surgery,Xinxiang Central Hospital,Xinxiang 453000,China
  • Online:2021-01-25 Published:2021-01-25

摘要:

目的 探讨长基因间非编码RNA 00689(LINC00689)对膀胱癌细胞T24增殖、凋亡的影响和可 能机制。方法 实时荧光定量PCR(RT⁃qPCR)分析膀胱癌组织、癌旁组织、T24细胞以及正常膀胱上皮细胞 SV⁃HUC⁃1中LINC00689和miR⁃876⁃5p表达。双荧光素酶报告基因和RT⁃qPCR验证LINC00689对miR⁃876⁃5p 的调控作用。将T24细胞分为si⁃NC组、si⁃LINC00689组、miR⁃NC组、miR⁃876⁃5p组、si⁃LINC00689+anti⁃miR⁃NC 组和 si⁃LINC00689+anti⁃miR⁃876⁃5p 组。运用细胞计数试剂盒(CCK⁃8)、流式细胞术分析细胞活力和凋亡, 蛋白质免疫印记(Western blot)分析细胞周期素D1(CyclinD1)、p21、B细胞淋巴瘤2(Bcl⁃2)和Bcl相关X蛋白 Bax)表达。结果 膀胱癌组织、T24 细胞中 LINC00689 表达升高,miR ⁃ 876 ⁃ 5p 表达降低(P < 0.05)。 LINC00689负调控miR⁃876⁃5p表达。与si⁃NC组比较,si⁃LINC00689组细胞活力、CyclinD1和Bcl⁃2蛋白表达降 低,凋亡率、p21和Bax蛋白升高(P < 0.05)。与miR⁃NC组比较,miR⁃876⁃5p组细胞活力、CyclinD1和Bcl⁃2 白表达降低,凋亡率、p21 Bax 蛋白升高(P < 0.05)。与 si⁃LINC00689+anti⁃miR⁃NC 组比较,si⁃LINC00689+ anti⁃miR⁃876⁃5p 组细胞活力、CyclinD1 Bcl⁃2 蛋白表达升高,凋亡率、p21 Bax 蛋白降低(P < 0.05)。 结论 抑制LINC00689通过负调控miR⁃876⁃5p能够降低膀胱癌T24

关键词:

Abstract:

Objective To investigate the effect of long intergenic non⁃coding RNA 00689(LINC00689 on the proliferation and apoptosis of bladder cancer cell T24 and its possible mechanism. Methods Real ⁃time fluorescence quantitative PCR(RT⁃qPCR)was used to analyze the expression of LINC00689 and miR⁃876⁃5p in bladder cancer tissues,adjacent tissues,T24 cells and normal bladder epithelial cells SV⁃HUC⁃1. Dual luciferase reporter gene and RT ⁃qPCR were applied to verify the regulation effect of LINC00689 on miR ⁃876⁃5p. T24 cells were divided into si⁃NC group,si⁃LINC00689 group,miR⁃NC group,miR⁃876⁃5p group,si⁃LINC00689 + anti⁃miR⁃ NC group and si⁃LINC00689 + anti⁃miR⁃876⁃5p group. Cell counting kit(CCK⁃8)and flow cytometry were used to analyze cell viability and apoptosis and western blot was used to analyze expression of cyclin D1(CyclinD1),p21 B cell lymphoma 2(Bcl⁃2)and Bcl⁃related X protein(Bax). Results The expression of LINC00689 was increased in bladder cancer tissues and T24 cells,but that of miR⁃876⁃5p was decreased(P < 0.05). LINC00689 negatively regulated miR⁃876⁃5p expression. Compared with those in si⁃NC group,cell viability,expression of CyclinD1 but Bcl⁃2 proteins were reduced,and apoptosis rate,expression of p21 and Bax proteins were increased in si⁃LINC00689 group(P < 0.05). Compared with those in miR⁃NC group,cell viability,expression of CyclinD1 and Bcl⁃2 pro⁃ teins were reduced,but apoptosis rate,expression of p21 and Bax proteins were increased in miR⁃876⁃5p group (P < 0.05). Compared with those in si⁃LINC00689 + anti⁃miR⁃NC group,cell viability,expression of CyclinD1 and Bcl ⁃ 2 proteins were increased,but apoptosis rate,expression of p21 and Bax proteins were reduced in si ⁃ LINC00689 + anti⁃miR⁃876⁃5p group(P < 0.05). Conclusion Inhibiting LINC00689 can reduce the proliferation 

Key words: