Furan-2-ylmethylene Thiazolidinediones as Novel, Potent, and Selective Inhibitors of Phosphoinositide 3-Kinase γ
作者:Vincent Pomel、Jasna Klicic、David Covini、Dennis D. Church、Jeffrey P. Shaw、Karen Roulin、Fabienne Burgat-Charvillon、Delphine Valognes、Montserrat Camps、Christian Chabert、Corinne Gillieron、Bernard Françon、Dominique Perrin、Didier Leroy、Denise Gretener、Anthony Nichols、Pierre Alain Vitte、Susanna Carboni、Christian Rommel、Matthias K. Schwarz、Thomas Rückle
DOI:10.1021/jm0601598
日期:2006.6.1
Class I phosphoinositide 3-kinases (PI3Ks), in particular PI3K gamma, have become attractive drug targets for inflammatory and autoimmune diseases. Here, we disclose a novel series of furan-2-ylmethylene thiazolidinediones as selective, ATP-competitive PI3K gamma inhibitors. Structure-based design and X-ray crystallography of complexes formed by inhibitors bound to PI3K gamma identified key pharmacophore features for potency and selectivity. An acidic NH group on the thiazolidinedione moiety and a hydroxy group on the furan-2-yl-phenyl part of the molecule play crucial roles in binding to PI3K and contribute to class IB PI3K selectivity. Compound 26 (AS-252424), a potent and selective small-molecule PI3K gamma inhibitor emerging from these efforts, was further profiled in three different cellular PI3K assays and shown to be selective for class IB PI3K-mediated cellular effects. Oral administration of 26 in a mouse model of acute peritonitis led to a significant reduction of leukocyte recruitment.