Abstract
目的:研究不同浓度的甘草次酸对大肠癌LoVo细胞增殖和侵袭的影响。方法:将大肠癌LoVo细胞分为对照组,甘草次酸低、中、高剂量组(甘草次酸浓度分别为50, 100, 200 μmol/L)和5氟尿嘧啶组(5氟尿嘧啶浓度为100 μmol/L ),各组细胞经过药物孵育24和48 h后进行检测。通过四氮唑蓝试验检测甘草次酸对各组细胞增殖率的影响;通过Annexin V/PI双标流式细胞术检测各组细胞的凋亡率;Transwell 小室法检测各组细胞的侵袭能力;通过蛋白质印迹法检测检各组细胞的NF-κB蛋白表达。结果:与对照组相比,甘草次酸中、高剂量组和5氟尿嘧啶组中细胞抑制率均显著降低(P＜0.05);甘草次酸中、高剂量组和5氟尿嘧啶组中细胞凋亡率均显著升高(P＜0.05);甘草次酸中、高剂量组和5氟尿嘧啶组中大肠癌LoVo 细胞侵袭能力显著降低(P＜ 0.05);甘草次酸中、高剂量组和5氟尿嘧啶组中NF-κB相对表达量均显著降低(P＜0.05)。结论:浓度为100 μmol/L和200 μmol/L甘草次酸可以抑制大肠癌LoVo细胞的增殖,降低侵袭能力,这些作用的机制与抑制NF-κB蛋白的表达有关。.
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