Design, Synthesis, and Biological Evaluation of Peptidomimetic Inhibitors of Factor XIa as Novel Anticoagulants
作者:Jian Lin、Hongfeng Deng、Lei Jin、Pramod Pandey、Jesse Quinn、Susan Cantin、Michael J. Rynkiewicz、Joan C. Gorga、Frank Bibbins、Cassandra A. Celatka、Pamela Nagafuji、Thomas D. Bannister、Harold V. Meyers、Robert E. Babine、Neil J. Hayward、David Weaver、Howard Benjamin、Frans Stassen、Sherin S. Abdel-Meguid、James E. Strickler
DOI:10.1021/jm060978s
日期:2006.12.1
Human coagulation factor XIa (FXIa), a serine protease activated by site-specific cleavage of factor XI by thrombin, FXIIa, or autoactivation, is a critical enzyme in the amplification phase of the coagulation cascade. To investigate the potential of FXIa inhibitors as safe anticoagulants, a series of potent, selective peptidomimetic inhibitors of FXIa were designed and synthesized. Some of these inhibitors
人凝血因子XIa(FXIa)是一种通过凝血酶,FXIIa或自发激活因子XI进行位点特异性切割而激活的丝氨酸蛋白酶,是凝血级联反应扩增阶段的关键酶。为了研究FXIa抑制剂作为安全抗凝剂的潜力,设计并合成了一系列有效的,选择性的FXIa拟肽抑制剂。这些抑制剂中的一些表现出低的纳摩尔FXIa抑制活性,FXa选择性> 1000倍,凝血酶选择性> 100倍。这些抑制剂之一的X射线结构36显示了其与FXIa的独特结合相互作用。化合物32在人血浆中以2.4 microM引起的活化部分凝血活酶时间的增加了一倍,并且在静脉血栓形成的大鼠模型中有效。