Structure–Activity Relationships of Lysophosphatidylserine Analogs as Agonists of G-Protein-Coupled Receptors GPR34, P2Y10, and GPR174
作者:Masaya Ikubo、Asuka Inoue、Sho Nakamura、Sejin Jung、Misa Sayama、Yuko Otani、Akiharu Uwamizu、Keisuke Suzuki、Takayuki Kishi、Akira Shuto、Jun Ishiguro、Michiyo Okudaira、Kuniyuki Kano、Kumiko Makide、Junken Aoki、Tomohiko Ohwada
DOI:10.1021/jm5020082
日期:2015.5.28
Lysophosphatidylserine (LysoPS) is an endogenous lipid mediator generated by hydrolysis of membrane phospholipid phosphatidylserine. Recent ligand screening of orphan G-protein-coupled receptors (GPCRs) identified two LysoPS specific human GPCRs, namely, P2Y10 (LPS2) and GPR174 (LPS3), which, together with previously reported GPR34 (LPS1), comprise a LysoPS receptor family. Herein, we examined the structure-attivity relationships of a series of synthetic LysoPS analogues toward these recently deorphanized LysoPS,receptors, based on the idea that LysoPS can be regarded as consisting of distinct modules (fatty acid, glycerol, and L-Serine) connected by phosphodiester and ester linkages. Starting from the endogenous ligand (1-oleoyl-LysolPS, 1), we optimized the structure of each module and the ester linkage. Accordingly, we identified some structural requirements of each module for potency and for receptor subtype selectivity. Further assembly of individually structure-optimized modules yielded a series of potent and LysoPS receptor subtype-selective agonists, particularly for P2Y10 and GPR174.