Structure–activity relationship study, target identification, and pharmacological characterization of a small molecular IL-12/23 inhibitor, APY0201
作者:Nobuhiko Hayakawa、Masatsugu Noguchi、Sen Takeshita、Agung Eviryanti、Yukie Seki、Hikaru Nishio、Ryohei Yokoyama、Misato Noguchi、Manami Shuto、Yoichiro Shima、Kanna Kuribayashi、Shunsuke Kageyama、Hiroyuki Eda、Manabu Suzuki、Tomohisa Hatta、Shun-ichiro Iemura、Tohru Natsume、Itsuya Tanabe、Ryusuke Nakagawa、Makoto Shiozaki、Kuniya Sakurai、Masataka Shoji、Ayatoshi Andou、Takashi Yamamoto
DOI:10.1016/j.bmc.2014.03.036
日期:2014.6
Interleukin-12 (IL-12) and IL-23 are proinflammatory cytokines and therapeutic targets for inflammatory and autoimmune diseases, including inflammatory bowel diseases, psoriasis, rheumatoid arthritis, and multiple sclerosis. We describe the discovery of APY0201, a unique small molecular IL-12/23 production inhibitor, from activated macrophages and monocytes, and demonstrate ameliorated inflammation in an experimental model of colitis. Through a chemical proteomics approach using a highly sensitive direct nanoflow LC-MS/MS system and bait compounds equipped with the FLAG epitope associated regulator of PIKfyve (ArPIKfyve) was detected. Further study identified its associated protein phosphoinositide kinase, FYVE finger-containing (PIKfyve), as the target protein of APY0201, which was characterized as a potent, highly selective, ATP-competitive PIKfyve inhibitor that interrupts the conversion of phosphatidylinositol 3-phosphate (PtdIns3P) to PtdIns(3,5)P-2. These results elucidate the function of PIKfyve kinase in the IL-12/23 production pathway and in IL-12/23-driven inflammatory disease pathologies to provide a compelling rationale for targeting PIKfyve kinase in inflammatory and autoimmune diseases. (C) 2014 Elsevier Ltd. All rights reserved.