黄芩苷对胃癌细胞株凋亡作用机制的研究(2)
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关于黄芩苷的药理作用机制已有报道,显示黄芩苷能增强荷艾氏腹水瘤小鼠免疫功能,抑制体内、外艾氏腹水瘤细胞增殖[1]。黄芩苷在100~200 μg/ml作用于培养肝癌细胞48 h后可引起典型的细胞凋亡[6]。但在胃癌方面,黄芩苷诱导胃癌细胞SGC-7972凋亡的作用机制还不甚清楚,而本次研究结果表明,黄芩苷也可能直接诱发胃癌细胞SGC-7972凋亡。黄芩苷是从中药黄芩中提取的化合物,其对人正常造血细胞和组织细胞几乎无损伤作用[7]。黄芩苷能够诱导胃癌细胞SGC-7972凋亡,有直接抗肿瘤的作用,可阻止胃癌细胞增殖,其与化疗药物相比,不良反应小,易被患者接受,临床上可望成为胃癌治疗的新手段。黄芩苷治疗胃癌机制的阐明,有助于开拓黄芩苷的应用范围。
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(收稿日期:2008-01-21)
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