Therapeutic potential of sulindac hydroxamic acid against human pancreatic and colonic cancer cells
作者:Stefano Fogli、Irene Banti、Fabio Stefanelli、Luca Picchianti、Maria Digiacomo、Marco Macchia、Maria Cristina Breschi、Annalina Lapucci
DOI:10.1016/j.ejmech.2010.08.019
日期:2010.11
the COX-active metabolite of sulindac hydroxamic acid were the most active of the series and selective inhibition of COX-1 but not COX-2 can mimic its effects, suggesting that COX inhibition could only play a partial role in the mechanism of compound action. In conclusion, these data demonstrate that substitution of the carboxylic acid group with the hydroxamic acid moiety enhances in vitro antiproliferative
非甾体抗炎药(NSAID)舒林酸在人类癌症中表现出环加氧酶(COX)依赖性和COX依赖性化学预防特性。本研究旨在研究用异羟肟酸取代羧酸基团是否可以增强舒林酸的体外抗肿瘤和抗血管生成活性。这项研究中使用的表征工具包括细胞活力分析,胱天蛋白酶3/7诱导,DNA片段化和基因表达。我们的研究结果表明,新合成的舒林酸异羟肟酸衍生物及其砜和硫化物代谢物的功效对人胰腺癌和结肠癌细胞具有良好的抗癌活性(IC 50平均值从6±1.1μM到64 ±1.1μM)和功效(Ë最大〜100%)。异羟肟酸衍生物比羧酸对应物触发更高程度的凋亡,增加bax / bcl-2表达比并诱导caspase 3/7活化。最值得注意的是,这些化合物在亚微摩尔浓度下显着抑制了促血管生成生长因子刺激的血管内皮细胞(HUVEC)的增殖。我们的数据还提供了证据,舒林酸异羟肟酸的COX活性代谢产物是该系列中最活跃的,选择性抑制COX-1而不是C