Structure-Guided Modification of Heterocyclic Antagonists of the P2Y 14 Receptor

Jinha Yu, Antonella Ciancetta, Steven Dudas, Sierra Duca, Justine Lottermoser, Kenneth A. Jacobson

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The P2Y 14 receptor (P2Y 14 R) mediates inflammatory activity by activating neutrophil motility, but few classes of antagonists are known. We have explored the structure-activity relationship of a 3-(4-phenyl-1H-1,2,3-triazol-1-yl)-5-(aryl)benzoic acid antagonist scaffold, assisted by docking and molecular dynamics (MD) simulation at a P2Y 14 R homology model. A computational pipeline using the High Throughput MD Python environment guided the analogue design. Selection of candidates was based upon ligand-protein shape and complementarity and the persistence of ligand-protein interactions over time. Predictions of a favorable substitution of a 5-phenyl group with thiophene and an insertion of a three-methylene spacer between the 5-aromatic and alkyl amino moieties were largely consistent with empirical results. The substitution of a key carboxylate group on the core phenyl ring with tetrazole or truncation of the 5-aryl group reduced affinity. The most potent antagonists, using a fluorescent assay, were a primary 3-aminopropyl congener 20 (MRS4458) and phenyl p-carboxamide 30 (MRS4478).

Original languageEnglish
Pages (from-to)4860-4882
Number of pages23
JournalJournal of Medicinal Chemistry
Volume61
Issue number11
DOIs
StatePublished - 14 Jun 2018

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