ID: ALA4371086
Journal: Bioorg Med Chem Lett
Title: An irreversible inhibitor of peptidyl-prolyl cis/trans isomerase Pin1 and evaluation of cytotoxicity.
Authors: Ieda N, Itoh K, Inoue Y, Izumiya Y, Kawaguchi M, Miyata N, Nakagawa H.
Abstract: Pin1 (protein interacting with never in mitosis A-1) is a member of the peptidyl prolyl isomerase (PPIase) family, and catalyzes cis-trans isomerization of pThr/Ser-Pro amide bonds. Because Pin1 is overexpressed in various cancer cell lines and promotes cell growth, it is considered a target for anticancer agents. Here, we designed and synthesized a covalently binding Pin1 inhibitor (S)-2 to target Pin1's active site. This compound inhibited Pin1 in protease-coupled assay, and formed a covalent bond with Cys113 of Pin1, as determined by ESI-MS. The acetoxymethyl ester of (S)-2, i.e., 6, suppressed cyclin D1 expression in human prostate cancer PC-3 cells, and exhibited cytotoxicity. Pin1-knockdown experiments indicated that a target for the cytotoxicity of 6 is Pin1.
CiteXplore: 30585173
DOI: 10.1016/j.bmcl.2018.12.044
Patent ID: ┄