Abstract
To investigate the differentiation of acute promyelocytic leukemia (APL) cells induced by Tetrandrine targeting MUC1. HL-60 cells at logarithmic growth phase were choosen as object of reaserch and were divided into four groups: control, ATRA, Tetrandrine and ATRA+Tetrandrine group. Cell morphologic changes in each group were observed by microscopy. The change of cell differentiation ability was analyzed by nitro-blue tetrazolium (NBT) reduction test. The expression of cell surface differentiation antigen CD11b was measured by flow cytometry. The expression of MUC1 protein was detected by Western blot. The differentiation of HL-60 cell could be induced by Tetrandrine. The NBT reduction-positive rate of ATRA+Tetrandrine group was significantly higher than that in ATRA group and Tetrandrine group (P<0.05). The percentage of CD11b positive cells in ATRA+Tetrandrine group(43.62％±1.38％) was significantly higher than that in Tetrandrine group(15.25％±2.11％), ATRA group (28.84％±7.53％) and control group(8.16％±1.01％) (P<0.05). The content of MUC1 protein in Tetrandrine group was significantly lower than that in control group and ATRA group (P<0.05). Tetrandrine and ATRA can synergize to promote the differentiation and maturation of HL-60 cells, and the mechanism may be related with MUC1 expression.
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