RNAi沉默GTPBP4基因?qū)Y(jié)腸癌RKO細(xì)胞增殖及凋亡的影響
發(fā)布時間:2018-05-27 22:23
本文選題:結(jié)腸癌 + 慢病毒 ; 參考:《腫瘤防治研究》2017年01期
【摘要】:目的探討GTPBP4基因沉默后,RKO細(xì)胞增殖和凋亡等生物學(xué)行為的改變。方法將慢病毒GTPBP4-siRNA及CON053陰性病毒轉(zhuǎn)染結(jié)腸癌RKO細(xì)胞株,以Real-time PCR和Western blot檢測敲減效率。Cellomics細(xì)胞計數(shù)檢測細(xì)胞生長,MTT法檢測細(xì)胞增殖,FACS法進(jìn)行細(xì)胞周期檢測,并進(jìn)行細(xì)胞克隆形成實驗,AnnexinⅤ-APC單染法流式細(xì)胞儀檢測細(xì)胞凋亡。結(jié)果慢病毒成功感染RKO細(xì)胞,m RNA和蛋白檢測均顯示GTPBP4基因敲減成功。GTPBP4基因敲減后,RKO細(xì)胞增殖速率受到顯著抑制,MTT值比值(即增殖倍數(shù))減小,G_(0/1)、G_2/M期細(xì)胞顯著增多,S期明顯減少,細(xì)胞克隆集落數(shù)目減少,凋亡峰值明顯高于對照組,且峰值出現(xiàn)時間早于對照組。結(jié)論 GTPBP4基因可能通過促進(jìn)腫瘤細(xì)胞增殖、抑制凋亡而影響結(jié)腸癌的發(fā)生發(fā)展。
[Abstract]:Objective to investigate the changes of proliferation and apoptosis of GTPBP4 cells after GTPBP4 gene silencing. Methods Lentivirus GTPBP4-siRNA and CON053 negative viruses were transfected into colon cancer RKO cell lines. Cell proliferation was detected by Real-time PCR and Western blot assay. Cell proliferation was detected by cell growth assay. Cell apoptosis was detected by Annexin 鈪,
本文編號:1944044
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