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Effects of baicalin on c-myc expression in HL-60 cells
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- Author:
- No author available
- Journal Title:
- JOURNAL OF LEUKEMIA & LYMPHOMA
- Issue:
- 3
- DOI:
- 10.3760/cma.j.issn.1009-9921.2006.03.003
- Key Word:
- 黄芩苷;HL-60细胞;c-myc基因表达
Abstract： 目的研究中药黄芩苷(baicalin)对人髓系白血病细胞株HL-60细胞增生、凋亡的影响及探讨c-myc基因在其中的作用.方法培养人髓系白血病细胞株HL-60细胞,应用MTT法绘制细胞生长曲线观察黄芩苷对HL-60细胞增生的影响;DNA凝胶电泳观察细胞凋亡;RT-PCR检测黄芩苷作用前后c-myc基因mRNA表达水平的变化;Western blot检测黄芩苷作用前后c-myc蛋白表达水平的变化.结果细胞生长曲线结果示黄芩苷能明显抑制HL-60细胞增生,半数抑制浓度(IC50)约为20μmol/L,DNA片段化的检出表明黄芩苷能有效诱导HL-60细胞凋亡;黄芩苷作用后HL-60细胞c-myc基因和蛋白的表达水平均下降,并且随作用时间延长,表达下降更明显.结论黄芩苷能有效抑制HL-60细胞增生,诱导其凋亡,c-myc基因可能参与了黄芩苷抑制HL-60细胞增生和诱导凋亡的过程.
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