Enantioselective responses to a phosphorothioate analogue of lysophosphatidic acid with LPA3 receptor-selective agonist activity

J Med Chem. 2003 Dec 18;46(26):5575-8. doi: 10.1021/jm034207p.

Abstract

The metabolically stabilized LPA analogue, 1-oleoyl-2-O-methyl-rac-glycerophosphothioate (OMPT), is a potent agonist for the LPA(3) G-protein-coupled receptor. A new enantiospecific synthesis of both (2R)-OMPT and (2S)-OMPT is described. Calcium release assays in both LPA(3)-transfected insect Sf9 and rat hepatoma Rh7777 cells showed that (2S)-OMPT was 5- to 20-fold more active than (2R)-OMPT. Similar results were found for calcium release, MAPK and Akt activation, and IL-6 release in human OVCAR3 ovarian cancer cells.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Calcium / metabolism
  • Cell Line
  • Cell Line, Tumor
  • Enzyme Activation
  • Humans
  • Interleukin-6 / biosynthesis
  • Lysophospholipids / chemical synthesis*
  • Lysophospholipids / chemistry
  • Lysophospholipids / pharmacology
  • Mitogen-Activated Protein Kinase Kinases / metabolism
  • Organothiophosphorus Compounds / chemical synthesis*
  • Organothiophosphorus Compounds / chemistry
  • Organothiophosphorus Compounds / pharmacology
  • Phosphatidic Acids / chemical synthesis*
  • Phosphatidic Acids / chemistry
  • Phosphatidic Acids / pharmacology
  • Phosphorylation
  • Protein Serine-Threonine Kinases*
  • Proto-Oncogene Proteins / metabolism
  • Proto-Oncogene Proteins c-akt
  • Rats
  • Receptors, G-Protein-Coupled / agonists*
  • Receptors, Lysophosphatidic Acid
  • Stereoisomerism
  • Structure-Activity Relationship

Substances

  • 1-oleoyl-2-O-methylglycerophosphothioate
  • Interleukin-6
  • Lysophospholipids
  • Organothiophosphorus Compounds
  • Phosphatidic Acids
  • Proto-Oncogene Proteins
  • Receptors, G-Protein-Coupled
  • Receptors, Lysophosphatidic Acid
  • AKT1 protein, human
  • Akt1 protein, rat
  • Protein Serine-Threonine Kinases
  • Proto-Oncogene Proteins c-akt
  • Mitogen-Activated Protein Kinase Kinases
  • Calcium