5-Chlorobenzofuran-2-carboxamides: From allosteric CB1 modulators to potential apoptotic antitumor agents
作者:Bahaa G.M. Youssif、Ashraf M. Mohamed、Essam Eldin A. Osman、Ola F. Abou-Ghadir、Dina H. Elnaggar、Mostafa H. Abdelrahman、Laurent Treamblu、Hesham A.M. Gomaa
DOI:10.1016/j.ejmech.2019.05.040
日期:2019.9
Cannabinoids as THC and the CB1 allosteric modulator CBD were reported to have antiproliferative activities with no reports for other CB1 allosteric modulators as the 5-chloroindole-2-carboxamide derivatives and their furan congeners. Based on the antiproliferative activity of two 5-chlorobenzofuran-2-carboxamide allosteric CB1 modulators, a series of novel derivatives was designed and synthesized
据报道,大麻素作为THC和CB1变构调节剂CBD具有抗增殖活性,而没有其他CB1变构调节剂的5-氯吲哚-2-羧酰胺衍生物及其呋喃同源物的报道。基于两种5-氯苯并呋喃-2-羧酰胺变构CB1调节剂的抗增殖活性,设计并合成了一系列新型衍生物。使用人乳腺上皮细胞系(MCF-10A)在细胞活力测定中测试了合成的化合物,其中所有化合物在50μM的浓度下均无细胞毒性作用且细胞活力超过85%。一些衍生物表现出抗肿瘤细胞的化合物良好的抗增殖活性8,15,21和22。活性最高的化合物15对阿霉素表现出同等的活性。化合物7,9,15,16,21和22由4-8倍增加活性胱天蛋白酶3的水平相比,在MCF-7细胞系和多柔比星作为参考药物的对照细胞。化合物15和21(最活跃的caspase-3诱导剂)增加caspase 8和9的水平,表明内在和外在途径均被激活,并显示出有效的Bax诱导,Bcl-2蛋白水平下调和细胞色素