Structure-Guided Modification of Heterocyclic Antagonists of the P2Y14 Receptor

J Med Chem. 2018 Jun 14;61(11):4860-4882. doi: 10.1021/acs.jmedchem.8b00168. Epub 2018 May 16.

Abstract

The P2Y14 receptor (P2Y14R) 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-1 H-1,2,3-triazol-1-yl)-5-(aryl)benzoic acid antagonist scaffold, assisted by docking and molecular dynamics (MD) simulation at a P2Y14R 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).

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural

MeSH terms

  • Amines / chemistry
  • Animals
  • CHO Cells
  • Cricetulus
  • Drug Design*
  • Heterocyclic Compounds / chemistry*
  • Heterocyclic Compounds / metabolism
  • Heterocyclic Compounds / pharmacokinetics
  • Heterocyclic Compounds / pharmacology*
  • Humans
  • Molecular Dynamics Simulation
  • Protein Conformation
  • Purinergic P2 Receptor Antagonists / chemistry*
  • Purinergic P2 Receptor Antagonists / metabolism
  • Purinergic P2 Receptor Antagonists / pharmacokinetics
  • Purinergic P2 Receptor Antagonists / pharmacology*
  • Receptors, Purinergic P2 / chemistry
  • Receptors, Purinergic P2 / metabolism*
  • Structure-Activity Relationship

Substances

  • Amines
  • Heterocyclic Compounds
  • P2Y14 receptor, human
  • Purinergic P2 Receptor Antagonists
  • Receptors, Purinergic P2