人参皂甙协同EPO和GM-CSF对K562细胞诱导分化的实验研究

Effects of TSPG combined with EPO or GM-CSF on differentiation of K562 cells

目的 研究人参总皂甙 (Totalsaponinsofpanaxginseng ,TSPG)协同细胞因子 (EPO、GM CSF)对人红白血病细胞株 (K5 62 )诱导分化的影响。方法 采用细胞体外培养技术 ,光镜和电镜观察细胞形态变化 ;联苯胺染色、POX染色、α NAE细胞化学染色分别检测细胞血红蛋白、过氧化物酶、非特异性脂酶α NAE ;免疫细胞化学检测细胞表面分化抗原CD15、HIR2、EPO R、GM CSF R。结果 TSPG协同细胞因子对K5 62细胞的诱导作用与TSPG单独作用相比 ,①K5 62细胞形态学更趋向于成熟 ;②K5 62细胞血红蛋白 (Hb)、过氧化物酶 (POX)的表达明显增加 ;③细胞表面分化抗原CD15、HIR2、EPO R、GM CSF R的表达明显增强。结论 TSPG协同细胞因子作用能明显诱导K5 62细胞向成熟方向分化。

Objective To investigate the effects of total saponins of Panax ginseng(TSPG) combined with erythropoietin(EPO) or granulocyte macrophage colony stimulating factor(GM CSF) on the differentiation of K562 cells. Methods Cells were cultured in vitro . Morphologic changes of cells were observed with light microscope and electron microscope. The levels of hemoglobin, peroxidase, non specific lipase α NAE in cells were detected respectively by benzidine staining, peroxidase(POX) staining and α NAE cytochemical staining. Levels of cell surface differentiation antigens CD15, HIR2, EPO R and GM CSF R were determined by immunocytochemistry. Results TSPG combined with EPO or GM CSF resulted in more mature morphological features of K562, increased expressions of hemoglobin and myeolperoxidase in K562 cells, and enhanced expressions of cell surface differentiation antigens CD15, HIR2, EPO R and GM CSF R. Conclusion TSPG combined with cytokine EPO or GM CSF can induce more mature differentiation of K562 cells.