申请人:Mesaik Muhammad A.
公开号:US20140378515A1
公开(公告)日:2014-12-25
The invention feature series of benzothiazole derivatives as potent immunosuppressive and antiinflammatory agents. Eight compounds 2, 4, 5, 8, 9, 10, 12, and 18 showed potent inhibitory activity on PHA-activated T-cell proliferation. Compounds 2, 4, 8, and 18 were found to have a potent inhibitory activity with IC
50
values ranging <1.0-2.9 μg/mL against IL-2. Studies on innate immune response revealed that compounds 2, 8, 9, and 10 have significant suppressive effect on ROS production with an IC
50
values 1.9, <1, 3.7 and 1.1 μg/mL, respectively. The LPS-induced nitrites in J774 macrophages cell line was inhibited by 4, 8, 9, and 18 at a concentration of 25 μg/mL (56-91%). In addition compounds 5, 8, 12, and 18 showed potent suppression on interleukin 4 (IL-4), particularly 9 (IC
50
<1 μg/mL). No cytotoxicity was found except for compound 9 and 18 (11.4 and 10.4 μg/mL IC
50
), respectively.
苯并噻唑衍生物系列的发明特征作为强效免疫抑制剂和抗炎剂。八种化合物2、4、5、8、9、10、12和18表现出对PHA激活的T细胞增殖具有强效的抑制活性。发现化合物2、4、8和18在IL-2上有强效的抑制活性,IC50值范围在<1.0-2.9 μg/mL之间。对先天免疫反应的研究显示,化合物2、8、9和10对ROS产生具有显著的抑制作用,其IC50值分别为1.9、<1、3.7和1.1 μg/mL。J774巨噬细胞系中LPS诱导的亚硝酸盐在25 μg/mL浓度下被化合物4、8、9和18抑制(56-91%)。此外,化合物5、8、12和18对白细胞介素4(IL-4)表现出强效的抑制作用,尤其是9(IC50<1 μg/mL)。除了化合物9和18(分别为11.4和10.4 μg/mL的IC50),未发现细胞毒性。