Synthesis and evaluation of a novel series of quinoline derivatives with immunosuppressive activity
作者:Guo-Biao Liu、Jian-Liang Xu、Cui-Cui He、Gong Chen、Qiang Xu、Hong-Xi Xu、Jian-Xin Li
DOI:10.1016/j.bmc.2009.06.043
日期:2009.8
A series of quinoline derivatives were synthesized and their immunosuppressive activity and cytotoxicity were evaluated with a T-cell functional assay and MTT method, respectively. Most of 5,7-dimethoxyquinolin-4-yl ortho-substituted benzoate derivatives (18, 22, 24, 28, 31 and 37) showed a quite stronger inhibitory activity compared to other analogs. Among the synthesized compounds, 5,7-dimethoxyquinolin-4-yl
合成了一系列喹啉衍生物,并分别通过T细胞功能测定和MTT法评估了它们的免疫抑制活性和细胞毒性。大多数的5,7-二甲氧基-4-基邻-取代的苯甲酸衍生物(18,22,24,28,31和37)相对于其他的类似物表现出相当强的抑制活性。在合成的化合物中,5,7-二甲氧基喹啉-4-基2,6-二氯苯甲酸酯(22)和5,7-二甲氧基喹啉-4-基4-甲基苯磺酸酯(40))在10μM浓度下显示出有效的抑制活性,而没有明显的细胞毒性。基于荧光活化细胞分选仪(FACS)测定进一步阐明了活性化合物22和40的初步机理,并且该化合物通过以剂量依赖性方式抑制T细胞活化而发挥免疫抑制活性。