Novel Inhibitor of p38 MAP Kinase as an Anti-TNF-α Drug: Discovery of <i>N</i>-[4-[2-Ethyl-4-(3-methylphenyl)-1,3-thiazol-5-yl]-2-pyridyl]benzamide (TAK-715) as a Potent and Orally Active Anti-Rheumatoid Arthritis Agent
作者:Seiji Miwatashi、Yasuyoshi Arikawa、Etsuo Kotani、Maki Miyamoto、Ken-ichi Naruo、Hiroyuki Kimura、Toshimasa Tanaka、Satoru Asahi、Shigenori Ohkawa
DOI:10.1021/jm050165o
日期:2005.9.1
protein (MAP) kinase has been implicated in the proinflammatory cytokine signal pathway, and its inhibitors are potentially useful for the treatment of chronic inflammatory diseases such as rheumatoid arthritis (RA) and inflammatory bowel disease. To develop a new drug for RA, we synthesized a novel series of 4-phenyl-5-pyridyl-1,3-thiazoles and evaluated their inhibition of p38 MAP kinase, lipopolysaccharide
p38促分裂原活化蛋白(MAP)激酶与促炎细胞因子信号通路有关,其抑制剂可能对治疗慢性炎性疾病(如类风湿性关节炎(RA)和炎性肠病)有用。为开发用于RA的新药,我们合成了一系列新的4-苯基-5-吡啶基-1,3-噻唑,并评估了它们对p38 MAP激酶,脂多糖(LPS)刺激的肿瘤坏死因子-α释放的抑制作用(从人单核细胞THP-1细胞体外提取TNF-α,在小鼠体内从LPS诱导的TNF-α产生。在研究过程中,我们发现这些化合物可能会通过4-吡啶基氮与血红素铁的配位而具有抑制细胞色素P450(CYP)同工型的风险。因此,我们更详细地研究了吡啶基环2位上的取代对p38 MAP激酶和CYPs抑制活性的影响。结果,N- [4- [2-乙基-4-(3-甲基苯基)-1,3-噻唑-5-基] -2-吡啶基]苯甲酰胺(8h,TAK-715)在小鼠体内表现出有效的抑制活性。这些测定法(抑制p38alpha,IC50 =