射频消融亚致死性温度对肝癌干细胞的影响
发布时间:2019-02-16 00:31
【摘要】:目的研究亚致死温度射频消融(RFA)对肝癌干细胞(LCSC)产生及其相关转录因子表达的影响。方法利用小鼠Hep1-6肝癌细胞株和肝细胞癌(HCC)患者临床样品,检测LCSC相关标志物和转录因子的表达。结果不同温度分别刺激Hep1-6细胞后发现,45℃是不能诱导细胞死亡的亚致死性温度。流式细胞仪(FCM)检测显示45℃处理可引起CD13~+、CD44~+、CD90~+、CD133~+Hep1-6细胞水平明显上调,提示45℃温度导致Hep1-6细胞中以上各型LCSC产生增加;实时定量聚合酶链反应(RT-q PCR)检测显示45℃温度导致CD13、CD90、CD133 m RNA水平明显上调。CD13 m RNA水平在5例HCC患者复发肝癌组织中均明显上调,CD133 m RNA在4例复发肝癌中上调,CD90 m RNA仅在1例复发肝癌中上调;FCM检测显示CD13~+LCSC水平在4例复发肝癌中明显上调,CD133~+LCSC水平仅在1例复发肝癌中上调,提示CD13~+LCSC水平上调与45℃温度关系更密切。RT-q PCR检测显示4例CD13~+LCSC上调的复发肝癌患者13个LCSC相关转录因子中Sox2、Stat1明显上调,FCM检测显示45℃处理Hep1-6细胞后Sox2、Stat1 m RNA明显上调。用Sox2、Stat1 si RNA分别沉默了Sox2、Stat1基因,表明Sox2、Stat1均参与了45℃温度诱导的CD13~+LCSC产生。结论 RFA治疗中45℃亚致死性温度所致CD13~+LCSC水平增高与Sox2、Stat1表达有关。该结果对肝癌复发研究有一定借鉴意义。
[Abstract]:Objective to study the effect of sublethal temperature radiofrequency ablation (RFA) on (LCSC) production and transcription factor expression in hepatocellular carcinoma stem cells. Methods the expression of LCSC related markers and transcription factors were detected by using mouse Hep1-6 hepatoma cell line and clinical samples of (HCC) patients with hepatocellular carcinoma. Results after stimulation of Hep1-6 cells at different temperatures, it was found that 45 鈩,
本文编号:2423857
[Abstract]:Objective to study the effect of sublethal temperature radiofrequency ablation (RFA) on (LCSC) production and transcription factor expression in hepatocellular carcinoma stem cells. Methods the expression of LCSC related markers and transcription factors were detected by using mouse Hep1-6 hepatoma cell line and clinical samples of (HCC) patients with hepatocellular carcinoma. Results after stimulation of Hep1-6 cells at different temperatures, it was found that 45 鈩,
本文编号:2423857
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