实用肿瘤学杂志 ›› 2019, Vol. 33 ›› Issue (6): 497-501.doi: 10.11904/j.issn.1002-3070.2019.06.004

• 基础研究 • 上一篇    下一篇

ABL2在肺癌中的作用及机制研究

李传海, 刘玉, 王延群, 陈英剑   

  1. 解放军第960医院(济南 250031)
  • 收稿日期:2019-05-23 修回日期:2019-07-23 发布日期:2019-12-28
  • 通讯作者: 陈英剑,E-mail:zhaunye99@aliyun.com
  • 作者简介:李传海,男,(1979-),硕士,主治医师,从事肺癌和食管癌治疗的研究。

The role and mechanism of ABL2 in lung cancer

LI Chuanhai, LIU Yu, WANG Yanqun, CHEN Yingjian   

  1. PLA 960 Hospital,Jinan 250031,China
  • Received:2019-05-23 Revised:2019-07-23 Published:2019-12-28

摘要: 目的 探究ABL2在肺癌中的作用及其机制。方法 采用Realtime PCR方法检测ABL2在肺癌组织和癌旁组织中的表达情况。然后建立稳定低表达ABL2的肺腺癌A549细胞株;通过MTT、细胞迁移和克隆形成实验检测细胞增殖和迁移能力的变化情况;Western blot检测EMT、凋亡和PI3K/AKT信号通路相关蛋白的表达情况。结果 肺癌组织中ABL2的表达水平明显高于癌旁组织(P<0.001)。在A549细胞系中沉默ABL2后,与对照组相比,48 h后细胞的迁移能力减弱(P<0.001),从第3天开始细胞的生长速度开始明显减缓(P<0.05),15天后形成的平均克隆数也减少(P<0.01)。Western blot结果显示,沉默ABL2后上皮细胞标志物E-cadherin表达升高(P<0.001),间质细胞标志物N-cadherin(P<0.001)、Vimentin(P<0.01)及Snail(P<0.001)表达降低。凋亡相关蛋白Bcl-XL表达下降(P<0.01),BAX表达上调(P<0.001)。PI3K/AKT信号通路相关蛋白PI3K P110(P<0.05)、AKT(P<0.01)和p-AKT(P<0.05)蛋白的表达都明显降低。结论 沉默ABL2基因能够通过PI3K/AKT信号通路促进细胞凋亡,抑制肺癌细胞的增殖和迁移。

关键词: 肺癌, ABL2, 凋亡

Abstract: Objective The aim of this study was to investigate the role and mechanism of ABL2 in lung cancer and its mechanism.Methods The expression of ABL2 in lung cancer and adjacent tissues was detected by Real-Time PCR.A lung adenocarcinoma A549 cell line stably expressing of ABL2 was established,and the changes of cell proliferation and migration ability were detected by MTT,cell migration and colony formation assays.Western blot was used to detect the expression of EMT,apoptosis and PI3K/AKT signaling pathway-related proteins.Results The expression of ABL2 in lung cancer tissues was significantly higher than that in adjacent tissues(P<0.001).After silencing ABL2 in the A549 cells,compared with the control group,the migration ability of cells was weakened after 48 hours(P<0.001),the growth rate of cells began to slow down from the third day(P<0.05),and the average number of clones formed after 15 days also decreased(P<0.01).The expression of E-cadherin(P<0.001)was increased in the epithelial cell marker after silencing ABL2,and the expression of stromal cell markers N-cadherin(P<0.001),Vimentin(P<0.01)and Snail(P<0.001)was decreased.The expression of apoptosis-related protein Bcl-XL(P<0.01)was decreased and BAX(P<0.001)expression was up-regulated.The expression of PI3K/AKT signaling pathway-associated proteins such as PI3K P110(P<0.05),AKT(P<0.01)and p-AKT(P<0.05)was significantly decreased.Conclusion Silencing ABL2 gene can promote apoptosis,and inhibit proliferation and migration of lung cancer cells through a PI3K/AKT signaling pathway.

Key words: Lung cancer, ABL2, Apoptosis

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