丹参酮IIA对乳腺癌细胞MDA-MB-435迁移及肿瘤血管生成的影响(英文)

被引:19
作者
徐长亮
奚涛
机构
[1] 中国药科大学生命科学与技术学院
关键词
丹参酮IIA; 迁移; 血管生成; 基因表达;
D O I
暂无
中图分类号
R285 [中药药理学];
学科分类号
100806 [中药药理学];
摘要
目的:研究丹参酮IIA抑制迁移以及新生血管形成的作用机制。方法:通过MTT,2-D/3-D迁移,血管生成,PCR,CAM等方法,评价丹参酮IIA抑制肿瘤细胞增殖,迁移以及新生血管的药理学活性,探讨其可能的作用机制。结果:给药24 h后,丹参酮IIA能够抑制乳腺癌细胞(MDA-MB-435)增殖(IC50=21 nmol/mL),并且当浓度分别大于5 nmol/mL和6 nmol/mL时,对癌细胞的2-D和3-D迁移具有很好的抑制作用。但其对新生牛主动脉内皮细胞(NCAEC)增殖几乎没有影响(IC50=124 nmol/mL)。共培养法tube formation实验发现,丹参酮IIA抑制新生血管形成主要作用其第2阶段,即内皮细胞的分化阶段。在基因转录水平上,丹参酮IIA对肿瘤增殖、迁移以及血管生成相关基因VEGF,c-Myc及HIF-1α表达具有良好的抑制作用。CAM实验表明,丹参酮IIA对新生血管生成也有良好的抑制作用。结论:丹参酮IIA具有很好的抑制肿瘤增殖,迁移及血管生成作用。其可能的作用机制是通过抑制VEGF、c-Myc及HIF-1α的表达,从而产生药理学活性。
引用
收藏
页码:565 / 570
页数:6
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