汉黄芩素对肺腺癌A549细胞黏附和迁移能力的影响及其可能机制

目的:观察汉黄芩素对人肺腺癌A549细胞黏附、迁移和侵袭能力的影响,并初步探讨其分子作用机制。方法:采用MTT法检测汉黄芩素对A549细胞增殖和黏附能力的影响;细胞划痕实验和侵袭小室法检测其对A549细胞迁移和侵袭能力的影响;RT-PCR和Western印迹法检测汉黄芩素对A549细胞中与转移相关的基因,如细胞间黏附分子-1(intercellular adhesion molecule-1,ICAM-1)、内皮细胞黏附分子-1(vascular cell adhesion molecule-1,VCAM-1)和c-Met表达的影响。结果:汉黄芩素能抑制A549细胞的生长,其细胞增殖抑制率与药物浓度及作用时间呈依赖关系。低浓度的汉黄芩素处理A549细胞后,可明显降低肺癌细胞的黏附、迁移和侵袭能力。汉黄芩素能有效抑制ICAM-1、VCAM-1基因和蛋白的表达,但对c-Met基因及其蛋白并没有影响。结论:汉黄芩素具有抑制肿瘤细胞转移的作用,其分子机制可能与下调ICAM-1和VCAM-1的表达有关,但与c-Met表达无关。

Effects of wogonin on the adhesion and migration abilities of lung cancer cell line A549 and their mechanisms

Objective: To evaluate the effects of wogonin on the adhesion,migration and invasion abilities of A549 cells,and to explore their molecular mechanisms.Methods: MTT method was used to detect the effect of wogonin on the proliferation of A549 cells.Scratch test and the invasion chamber model were used to detect the effects of wogonin on the invasion,adhesion,and migration of A549 cells.The influences of wogonin on the expressions of intercellular adhesion molecule-1(ICAM-1),vascular cell adhesion molecule-1(V...