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-  2019 

尼克酰胺通过SIRT1/PGC-1α/HIF2α信号途径介导白血病细胞HL-60糖酵解代谢的作用及机制 Effect of nicotinamide regulating glycolysis metabolism on leukemic cell HL-60 through SIRT1/PGC-1 alpha/HIF2 alpha pathway

Keywords: 尼克酰胺,白血病,糖酵解活性,SIRT1/PGC-1α/HIF2α通路

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Abstract:

目的:探讨尼克酰胺对人慢性髓系白血病细胞HL-60糖酵解代谢途径的影响,以及SIRT1/PGC-1α/HIF2α信号通路在上述过程中的作用。方法:HL-60细胞培养,葡萄糖消耗实验检测白血病细胞糖酵解活性;流式细胞术检测细胞凋亡,RT-PCR和Western Blot方法检测SIRT1、PGC-1α、HIF2α基因的表达。结果:尼克酰胺能明显抑制白血病细胞HL-60的糖酵解活性和诱导细胞凋亡,此作用呈时间依赖性和浓度依赖性。SIRT1、PGC-1α和HIF2α基因在白血病细胞HL-60均有基础表达,10μmol/L尼克酰胺对HL-60细胞干预24 h后,3个基因的mRNA和蛋白表达水平均明显下调(P<0.05)。结论:尼克酰胺能抑制白血病细胞HL-60的糖酵解活性,诱导细胞凋亡,其机制可能与尼克酰胺调节的SIRT1/PGC-1α/HIF2α信号通路有关

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