实用肿瘤学杂志 ›› 2020, Vol. 34 ›› Issue (4): 328-333.doi: 10.11904/j.issn.1002-3070.2020.04.007

• 基础研究 • 上一篇    下一篇

miR-182对直肠癌细胞增殖、侵袭及Foxo3a/Wnt/β-catenin通路的调节作用

陈灿, 张艳玲, 刘小庆, 冉凤伟   

  1. 中国人民解放军陆军军医大学第一附属医院肿瘤科(重庆 400038)
  • 收稿日期:2020-04-28 发布日期:2020-08-17
  • 通讯作者: 张艳玲,E-mail:zhangyanl11@sina.com
  • 作者简介:陈灿,女,(1988-),本科,住院医师,从事实体瘤诊疗的研究。

The effect of miR-182 on the proliferation and invasion of rectal cancer cells and regulation of Foxo3a/Wnt/β-catenin pathway

CHEN Can, ZHANG Yanling, LIU Xiaoqing, RAN Fengwei   

  1. Department of Oncology,The First Affiliated Hospital of Chinese People's Liberation Army Medical University,Chongqing 400038,China
  • Received:2020-04-28 Published:2020-08-17

摘要: 目的 研究miR-182对直肠癌细胞增殖、侵袭及Foxo3a/Wnt/β-catenin通路的调节作用。方法 收集2016年6月—2019年7月手术切除的直肠癌组织及癌旁组织,培养直肠癌细胞株HT29、SW620、HCT-116及正常肠上皮细胞HIEC,检测miR-182的表达量。将SW620细胞进行分组处理,对照组用不含药物的RPMI-1640培养基处理,NC组转染NC模拟物、miR-182组转染miR-182模拟物。采用MTS法检测各组细胞增殖活力,采用Transwell检测侵袭活力,采用Western blot检测Foxo3a/Wnt/β-catenin通路分子的表达。结果 直肠癌组织中miR-182的表达量(2.14±0.55)明显高于癌旁组织(1.06±0.24)(P<0.05);HT29、SW620、HCT-116细胞中miR-182的表达量明显高于HIEC(P<0.05),且SW620细胞中miR-182表达增加最显著;miR-182组细胞的增殖活力(0.92±0.15)明显高于对照组(0.52±0.08)和NC组(0.55±0.07)(P<0.05),侵袭数目(39.49±7.61)明显多于对照组(23.25±5.85)和NC组(21.84±4.77)(P<0.05),迁移数目(44.12±9.29)明显多于对照组(29.39±6.18)和NC组(32.83±6.68)(P<0.05);Foxo3a的表达水平(0.36±0.07)明显低于对照组(0.83±0.15)和NC组(0.86±0.12)(P<0.05);Wnt2的表达水平(0.86±0.15)明显高于对照组(0.62±0.09)和NC组(0.58±0.07)(P<0.05);β-catenin的表达水平(0.79±0.15)明显高于对照组(0.41±0.07)和NC组(0.45±0.08)(P<0.05)。结论 miR-182能够促进直肠癌细胞的增殖和侵袭,其机制可能与靶向Foxo3a/Wnt/β-catenin通路相关。

关键词: 直肠癌, miR-182, 增殖, 侵袭, Foxo3a/Wnt/β-catenin通路

Abstract: Objective The aims of this study were to determine the effects of miR-182 on the proliferation and invasion of rectal cancer cells,and the regulation of Foxo3a/Wnt/β-catenin pathway. Methods Rectal cancer tissues and adjacent tissues that were surgically removed from June 2016 to July 2019 were collected,and human rectal cancer HT29,SW620,and HCT-116 cell lines and normal intestinal epithelial HIEC cells were cultured to detect the expression of miR-182.SW620 cells were treated in these following groups:the control group was treated with RPMI-1640 without drugs;the NC group was transfected with NC mimics and the miR-182 group was transfected with miR-182 mimics.The MTS assay was used to detect proliferation activity,Transwell was used to detect invasion activity,and Western blot was used to detect the expression of Foxo3a/Wnt/β-catenin pathway molecules in SW620 cells. Results The expression of miR-182 in rectal cancer tissues(2.14±0.55)was significantly higher than that in adjacent tissues(1.06±0.24)(P<0.05);the expression of miR-182 in HT29,SW620 and HCT-116 cells were significantly higher than that in HIEC cells(P<0.05),and the expression of miR-182 in SW620 cells increased most significantly;Proliferation activity in the miR-182 group(0.92±0.15)was significantly higher than that in the control group(0.52±0.08)and the NC group(0.55±0.07)(P<0.05);The number of invasion in the miR-182 group(39.49±7.61)was significantly more than that of the control group(23.25±5.85)and the NC group(21.84±4.77)(P<0.05);The number of migration in the miR-182 group(44.12±9.29)was significantly more than that in the control group(29.39±6.18)and the NC group(32.83±6.68)(P<0.05);The expression of Foxo3a in the miR-182 group(0.36±0.07)was significantly lower than that in the control group(0.83±0.15)and the NC group(0.86±0.12)(P<0.05);The expression of Wnt2 in the miR-182 group(0.86±0.15)was significantly higher than that in the control group(0.62±0.09)and the NC group(0.58±0.07)(P<0.05);The expression of β-catenin in the miR-182 group(0.79±0.15)was significantly higher than that in the control group(0.41±0.07)and the NC group(0.45±0.08)(P<0.05). Conclusion miR-182 can promote the proliferation and invasion of rectal cancer cells,and its mechanism may be related to targeting Foxo3a/Wnt/β-catenin pathway.

Key words: Rectal cancer, miR-182, Proliferation, Invasion, Foxo3a/Wnt/β-catenin pathway

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