吉林大学学报(医学版) ›› 2021, Vol. 47 ›› Issue (3): 637-643.doi: 10.13481/j.1671-587X.20210313

• 基础研究 • 上一篇    下一篇

二甲双胍通过PI3K/AKT/GSK3β信号通路对肺癌A549细胞增殖的影响

穆春青1,周磊1,赵楠1,王红1,李智2()   

  1. 1.锦州医科大学附属第一医院转化医学研究院,辽宁 锦州 121000
    2.锦州医科大学 转化医学研究院,辽宁 锦州 121000
  • 收稿日期:2020-08-19 出版日期:2021-05-28 发布日期:2021-05-28
  • 通讯作者: 李智 E-mail:cljlizhi@163.com
  • 作者简介:穆春青(1990-),女,辽宁省锦州市人,助理研究员,医学硕士,主要从事肺部肿瘤基础和临床方面的研究。
  • 基金资助:
    辽宁省教育厅科研项目(JYTQN201729)

Effect of metformin on proliferation of lung cancer A549 cells through PI3K/AKT/GSK3β signaling pathway

Chunqing MU1,Lei ZHOU1,Nan ZHAO1,Hong WANG1,Zhi LI2()   

  1. 1.Institute of Translational Medicine,First Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China
    2.Institute of Translational Medicine,Jinzhou Medical University,Jinzhou 121000,China
  • Received:2020-08-19 Online:2021-05-28 Published:2021-05-28
  • Contact: Zhi LI E-mail:cljlizhi@163.com

摘要: 目的

探讨二甲双胍对非小细胞肺癌A549细胞增殖的影响,并阐明其可能的作用机制。

方法

将肺癌A549细胞分为对照组和不同浓度(1、2、4、8、16和32 mmol·L-1)二甲双胍组,MTT法检测作用24、48和72 h后各组A549细胞增殖率,克隆形成实验检测各组A549细胞克隆形成数,细胞划痕实验检测各组A549细胞迁移率,RT-PCR法检测各组A549细胞中磷脂酰肌醇3激酶(PI3K)、蛋白激酶B(AKT)和糖原合成激酶3β(GSK3β)mRNA表达水平,Western blotting法检测各组A549细胞中PI3K、磷酸化PI3K(p-PI3K)、AKT、磷酸化AKT(p-AKT)、GSK3β和磷酸化GSK3β(p-GSK3β)蛋白表达水平。

结果

与对照组比较,作用24、48和72 h后,不同浓度二甲双胍组A549细胞增殖率降低(P<0.05);与对照组比较,2和8 mmol·L-1 二甲双胍组A549细胞克隆形成数降低(P<0.05);与对照组比较,2和8 mmol·L-1二甲双胍组A549细胞迁移率降低(P<0.05);与对照组比较,2和8 mmol·L-1二甲双胍组A549细胞中PI3K、AKT和GSK3β mRNA表达水平明显降低(P<0.05);与对照组比较,2和8 mmol·L-1二甲双胍组A549细胞中PI3K、p-PI3K、p-AKT和p-GSK3β蛋白表达水平明显降低(P<0.05)。

结论

二甲双胍可抑制肺癌A549细胞增殖和迁移,其机制可能与抑制PI3K/AKT/GSK3β信号通路有关。

关键词: 肺肿瘤, 二甲双胍, 增殖, 迁移, PI3K/AKT/GSK3β信号通路

Abstract: Objective

To investigate the effect of metformin on the proliferation of the non-small cell lung cancer A549 cells ,and to clarify its possible mechanism.

Methods

The A549 cells were divided into control group and different concentrations (1, 2, 4, 8, 16 and 32 mmol·L-1) of metformin groups.MTT method was used to detect the proliferation rates of A549 cells in various groups after treated for 24, 48 and 72 h; clone formation experiment was used to detect the clone formation number of A549 cells in various groups; cell scratch test was used to detect the migration rates of A549 cells in various groups; RT-PCR method was used to detect the expression levels of phosphoinositide-3-kinase (PI3K), protein kinase B (AKT), and glycogen-synthase kinase-3β (GSK3β) mRNA in the A549 cells in various groups; Western blotting method was used to detect the expression levels of PI3K, PI3K(p-PI3K), AKT, phosphorylated AKT(p-AKT), GSK3β ,and phosphorylated GSK3β (p-GSK3β) proteins in the A549 cells in various groups.

Results

Compared with control group, the proliferation rates of lung cancer A549 cells in different concentrations of metformin groups after treated for 24, 48 and 72 h were decreased (P<0.05); compared with control group, the number of clone formation in the A549 cells in 2 and 8 mmol·L-1 metformin groups was decreased (P<0.05); compared with control group, the migration rates of the A549 cells in 2 and 8 mmol·L-1 metformin groups were decreased (P<0.05); compared with control group, the expression levels of PI3K, AKT and GSK3β mRNA in the A549 cells in 2 and 8 mmol·L-1 metformin groups were significantly decreased (P<0.05); compared with control group, the expression levels of PI3K, p-PI3K, p-AKT, and p-GSK3β proteins in the A549 cells in 2 and 8 mmol·L-1 metformin groups were significantly decreased (P<0.05).

Conclusion

Metformin can inhibit the proliferation and migration of lung cancer A549 cells, and its mechanism may be related to the inhibition of PI3K/AKT/GSK3β signaling pathway.

Key words: lung cancer, metformin, proliferation, migration, PI3K/AKT/GSK3β signaling pathway

中图分类号: 

  • R734.2