中国临床解剖学杂志 ›› 2021, Vol. 39 ›› Issue (1): 55-59.doi: 10.13418/j.issn.1001-165x.2021.01.011

• 实验研究 • 上一篇    下一篇

miR-146a通过靶向CCNJ调控鼻咽癌细胞HNE-1/DDP对顺铂敏感性的影响

周兰柱, 赵报, 张明洁, 崔忆旋, 吴俊, 孙哲, 柳申成, 王文忠   

  1. 蚌埠医学院第一附属医院耳鼻喉头颈外科,  安徽   蚌埠    233000
  • 收稿日期:2020-01-14 出版日期:2021-01-25 发布日期:2021-01-27
  • 通讯作者: 王文忠,主任医师,硕士生导师,E-mail:13955259093 @163.com
  • 作者简介:周兰柱(1981-),男,安徽蚌埠人,硕士,主治医师,研究方向:头颈部肿瘤,E-mail:20206283@qq.com
  • 基金资助:
    国家自然科学基金(81903142);安徽省高校自然科学研究重点项目(KJ2019A0293,KJ2019A0376);蚌埠医学院科技发展基金(BYKF1763);蚌埠医学院自然科学基金重点项目(BYKY1855ZD)

Effect of miR-146a on the sensitivity of nasopharyngeal carcinoma cells HNE-1 / DDP to cisplatin by targeting CCNJ

Zhou Lanzhu, Zhao Bao, Zhang Mingjie, Cui Yixuan, Wu Jun, Sun Zhe, Liu Shencheng, Wang Wenzhong   

  1. Department of Otolaryngology, Head and Neck Surgery, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
  • Received:2020-01-14 Online:2021-01-25 Published:2021-01-27

摘要: 目的 探讨miR-146a对鼻咽癌耐顺铂细胞HNE-1/DDP顺铂敏感性的作用及可能机制。  方法 实验分空白组、阴性对照组及mimics-miR-146a组。MTT检测HNE-1/DDP细胞在不同方法处理后的增殖抑制作用;Annexin V-FITC/PI双染法检测细胞凋亡情况;Western blot检测周期蛋白CCNJ、MRP1、P-gp的相对表达水平;实时荧光定量PCR(RT-qPCR)检测CCNJ mRNA的相对表达水平。  结果 与其他两组相比,mimics-miR-146a组存活率降低,凋亡率升高,MRP1、P-gp、CCNJ蛋白表达量降低,CCNJ mRNA的相对表达量降低,差异均有统计学意义(P<0.05)。  结论 miR-146a可增加HNE-1/DDP对DDP的敏感性,机制可能是miR-146a抑制CCNJ的表达而调控下游蛋白MRP1、P-gp,降低细胞耐药性。

关键词: 鼻咽癌,  耐药性,  微小RNA,  顺铂,  细胞周期素蛋白J

Abstract: Objective To investigate the effect of miR-146a on cisplatin sensitivity of nasopharyngeal carcinoma HNE-1 / DDP cells and its possible mechanism. Methods The experiment was divided into three groups: a blank control group, a negative control group and a mimics-miR-146a group. MTT assay was used to detect the proliferation inhibition of cells after different treatments. Annexin V-FITC / PI assay was used to detect apoptosis. Western blot was used to detect the relative expression levels of cyclin CCNJ, MRP1, P-gp. RT-qPCR was used to detect the relative expression level of CCNJ mRNA. Results  Compared with other two groups, the survival rate, the relative protein expression levels of MRP1, P-gp, CCNJ and the relative expression level of CCNJ mRNA of mimics-miR-146a reduced, while the apoptosis rate increased. There were statistical differences in the survival rate, the relative protein expression levels of MRP1, P-gp, CCNJ, the relative expression level of CCNJ mRNA and the apoptosis rate among the three groups (P<0.05). Conclusions miR-146a can increase the sensitivity of HNE-1/DDP to DDP which mechanism may be through miR-146a inhibiting the expression of CCNJ to regulate downstream proteins MRP1,P-gp,and then to reduce cell resistance.

Key words: Nasopharyngeal carcinoma,  Drug resistance,  Micro RNA,  Cisplatin,  Cyclin protein

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