上海口腔医学 ›› 2022, Vol. 31 ›› Issue (5): 483-490.doi: 10.19439/j.sjos.2022.05.007

• 论著 • 上一篇    下一篇

姜黄素调控唾液腺肿瘤细胞增殖和凋亡的机制探讨

杜洪亮, 何等旗, 王佳俐, 车银富, 闫庆涵   

  1. 兰州大学第一医院 口腔颌面外科,甘肃 兰州 730000
  • 收稿日期:2021-06-04 修回日期:2021-08-03 出版日期:2022-10-25 发布日期:2022-11-01
  • 通讯作者: 何等旗,E-mail:qingling0633@163.com
  • 作者简介:杜洪亮(1987-),男,硕士,副主任医师,E-mail:duhongliang2022@sina.com
  • 基金资助:
    兰州大学第一医院院内基金(ldyyyn2020-55)

Curcumin targeting miR-155-5p/TP53INP1axis induced oxidative stress to regulate salivary gland tumor cell proliferation, apoptosis

DU Hong-liang, HE Deng-qi, WANG Jia-Li, CHE Yin-fu, YAN Qing-han   

  1. Department of Oral and Maxillofacial Surgery, The First Hospital of Lanzhou University. Lanzhou 730000, Gansu Province, China
  • Received:2021-06-04 Revised:2021-08-03 Online:2022-10-25 Published:2022-11-01

摘要: 目的: 探讨姜黄素靶向miR-155-5p/TP53INP1轴诱导氧化应激调控唾液腺肿瘤细胞增殖和凋亡的机制。方法: A253细胞加入姜黄素及转染miR-155-5p mimic和(或)pcDNA3.1-TP53INP1,共同培养。采用CCK-8法检测细胞增殖;流式细胞术检测细胞凋亡;划痕实验检测细胞迁移能力;双荧光素酶报告实验验证miR-155-5p与TP53INP1之间的靶向关系;qRT-PCR检测细胞miR-155-5p、TP53INP1mRNA的表达;Western印迹法检测细胞TP53INP1、Caspase8、Caspase3、Bcl-2、Bax蛋白表达;ELISA法检测细胞SOD、Gpx、MDA含量。采用SPSS 22.0软件包对数据进行统计学分析。结果: 双荧光素酶报告实验证实,TP53INP1是miR-155-5p的下游靶向调控分子;与DMSO组相比,姜黄素组细胞凋亡、Caspase8、Caspase3、Bax蛋白表达及TP53INP1表达显著增加,Bcl-2蛋白表达、miR-155-5p mRNA及划痕迁移细胞数显著降低(P<0.05);与姜黄素+miR-155-5p mimic组相比,姜黄素+pcDNA3.1-TP53INP1组、姜黄素+miR-155-5p mimic+pcDNA3.1-TP53INP1组细胞凋亡、Caspase8、Caspase3、Bax蛋白表达显著增加,Bcl-2蛋白表达显著升高(P<0.05),姜黄素+pcDNA3.1-TP53INP1组SOD、GSH-PX活性及划痕迁移细胞数显著降低,MDA含量显著升高(P<0.05)。结论: 姜黄素抑制A253细胞增殖,促进A253细胞凋亡,其机制可能与靶向miR-155-5p/TP53INP1轴诱导氧化应激调控有关。

关键词: 唾液腺, 恶性肿瘤, 姜黄素, miR-155-5p, 氧化应激

Abstract: PURPOSE: To investigate the mechanism of curcumin targeting miR-155-5p/TP53INP1 axis to induce oxidative stress to regulate salivary gland tumor cell proliferation and apoptosis. METHODS: A253 cells were cultured by adding curcumin and transfected with miR-155-5p mimic and/or pcDNA3.1-TP53INP1. Cell proliferation was detected by CCK-8 assay cell apoptosis was detected by flow cytometry, cell migration ability was detected by scratch test. The targeting relationship between miR-155-5p and TP53INP1 was verified by dual luciferase reporter assay. miR-155-5p, TP53INP1 mRNA expression was detected by qRT-PCR. Western blot was performed to detect expression of TP53INP1, Caspase8, Caspase3, Bcl-2, Bax protein; and ELISA was used to determine SOD, Gpx, and MDA content. Statistical analysis was performed using SPSS 22.0 software package. RESULTS: Dual luciferase reporter assay confirmed that TP53INP1 was a downstream target regulatory molecule of miR-155-5p. Compared with DMSO group, cell apoptosis, Caspase8, Caspase3, Bax protein expression and TP53INP1 expression were significantly increased in curcumin group, while Bcl-2 protein expression, miR-155-5p mRNA and number of cell migration were significantly decreased(P<0.05). Compared with curcumin + miR-155-5p mimic group, cell apoptosis, Caspase8, Caspase3, Bax protein expression was significantly increased in curcumin + pcDNA3.1-TP53INP1 group and curcumin + miR-155-5p mimic + pcDNA3.1-TP53INP1 group; Bcl-2 protein expression was significantly increased(P<0.05), SOD, GSH-PX activities and number of cell migration were significantly decreased and MDA content was significantly increased in curcumin+pcDNA3.1-TP53INP1 group (P<0.05). CONCLUSIONS: Curcumin inhibited A253 cell proliferation and promoted A253 cell apoptosis. The mechanism may be related to targeting miR-155-5p/TP53INP1 axis to induce oxidative stress regulation.

Key words: Salivary gland, Malignant neoplasms, Curcumin, miR-155-5p, Oxidative stress

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