Abstract
To investigate the effect of V-9302 (an antagonist of transmembrane glutamine flux) on the proliferation and apoptosis of acute myeloid leukemia cells HL-60 and KG-1. HL-60 and KG-1 cells at logarithmic phase were treated by different concentrations of V-9302. CCK-8 assay was used to detect the proliferation of the cells. Annexin V-FITC / PI double staining flow cytometry was used to detect the apoptosis of HL-60 and KG-1 cells. The expressions of BAX, BCL-2 and Caspase3 were detected by RT-qPCR and Western blot. V-9302 could significantly inhibit the growth of HL-60 and KG-1 cells. The concentration of V-9302 at 10, 20 μmol/L could significantly promote the apoptosis of HL-60 and KG-1 cells(P<0.05). The results of apoptosis related gene detection showed that when V-9302 was applied to HL-60 and KG-1 cell lines at 10 and 20 μmol/L, the expression levels of Pro-apoptotic protein genes BAX and Caspase3 in HL-60 and KG-1 were significantly higher than those in control group (P<0.05), while the expression level of anti-apoptotic protein gene BCL-2 was significantly lower than that in the control group (P<0.05). The results of Western blot were basically consistent with that of RT-qPCR. Competitive antagonist of transmembrane glutamine flux V-9302 can significantly promote the apoptosis of acute myeloid leukemia cell lines HL-60 and KG-1.
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