SIRT1對肺癌A549細胞增殖和遷移的影響
[Abstract]:Objective to investigate the effect of SIRT1 on proliferation and metastasis of lung cancer cells and its molecular mechanism by regulating the expression of silencing information regulator 1 (SIRT1) in lung cancer cell line A549. Methods Lung cancer A549 cells were cultured and infected with recombinant adenoviruses to up-regulate / down-regulate the expression of SIRT1, and the effects of up-regulation / down-regulation of SIRT1 expression on the proliferation and metastasis of lung cancer A549 cells were detected by MTT assay, clone formation test, scratch test and Transwell migration assay. After interfering with SIRT1 expression, the effect of SIRT1 on the expression of (EMT) related protein markers ZO-1, 尾-catenin), Snail and ZEB1 from epithelial cells to stroma cells in lung cancer A549 cells was detected by Western blot. Results the up-regulation / down-regulation of SIRT1 expression had no significant effect on the proliferation of lung cancer cell line A549, but it could promote / inhibit the migration of lung cancer cell line A549. After down-regulating the expression of SIRT1, the expression of EMT-related epithelial marker protein ZO-1 increased and the expression of interstitial marker protein 尾-catenin,Snail and ZEB1 decreased. Conclusion SIRT1 may promote the migration of lung cancer cell line A549 by affecting the expression of EMT-related marker protein.
【作者單位】: 廣東醫(yī)科大學呼吸疾病研究所;廣東醫(yī)科大學生物化學與分子生物學教研室;
【基金】:國家自然科學基金青年基金項目(編號:81400023) 廣東醫(yī)科大學優(yōu)秀碩士論文培育項目(編號:4CX14091G)
【分類號】:R734.2
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