Lysophosphatidic acid modulates prostaglandin signalling in bovine steroidogenic luteal cells

Prostaglandins Other Lipid Mediat. 2015 Sep;121(Pt B):218-26. doi: 10.1016/j.prostaglandins.2015.10.002. Epub 2015 Oct 19.

Abstract

We examined whether lysophosphatidic acid affects prostaglandin biosynthesis, transport, and signalling in bovine steroidogenic luteal cells. The aim of the present study was to determine the influence of LPA on PGE2 and PGF2α synthesis and on the expression of enzymes involved in PG biosynthesis (PTGS2, mPGES-1, cPGES, mPGES-2, PGFS and 9-KPR), prostaglandin transporter (PGT), and prostaglandin receptors (EP1, EP2, EP3, EP4 and FP) in bovine steroidogenic luteal cells. We found that LPA inhibited PGF2α synthesis in steroidogenic luteal cells. Moreover, LPA increased mPGES1 and cPGES and decreased PGFS expression in cultured bovine steroidogenic luteal cells. Additionally, LPA stimulated EP2 and EP4 receptor and PGT expression. This study suggests that LPA activity in the bovine CL directs the physiological intraluteal balance between the two main prostanoids towards luteotropic PGE2.

Keywords: Cow; Lysophosphatidic acid; Prostaglandins; Steroidogenic cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abattoirs
  • Animals
  • Biological Transport
  • Cattle
  • Cells, Cultured
  • Dairying
  • Dinoprost / antagonists & inhibitors
  • Dinoprost / metabolism
  • Dinoprostone / agonists
  • Dinoprostone / metabolism
  • Estrous Cycle / metabolism
  • Female
  • Gene Expression Regulation
  • Hydroxyprostaglandin Dehydrogenases / antagonists & inhibitors
  • Hydroxyprostaglandin Dehydrogenases / genetics
  • Hydroxyprostaglandin Dehydrogenases / metabolism
  • Intramolecular Oxidoreductases / chemistry
  • Intramolecular Oxidoreductases / genetics
  • Intramolecular Oxidoreductases / metabolism*
  • Isoenzymes / antagonists & inhibitors
  • Isoenzymes / chemistry
  • Isoenzymes / genetics
  • Isoenzymes / metabolism
  • Luteal Cells / cytology
  • Luteal Cells / enzymology
  • Luteal Cells / metabolism*
  • Luteinizing Hormone / metabolism
  • Lysophospholipids / metabolism*
  • Organic Anion Transporters / agonists*
  • Organic Anion Transporters / genetics
  • Organic Anion Transporters / metabolism
  • Prostaglandin-E Synthases
  • Receptors, Prostaglandin E, EP2 Subtype / agonists*
  • Receptors, Prostaglandin E, EP2 Subtype / genetics
  • Receptors, Prostaglandin E, EP2 Subtype / metabolism
  • Receptors, Prostaglandin E, EP4 Subtype / agonists*
  • Receptors, Prostaglandin E, EP4 Subtype / genetics
  • Receptors, Prostaglandin E, EP4 Subtype / metabolism
  • Signal Transduction

Substances

  • Isoenzymes
  • Lysophospholipids
  • Organic Anion Transporters
  • Receptors, Prostaglandin E, EP2 Subtype
  • Receptors, Prostaglandin E, EP4 Subtype
  • Luteinizing Hormone
  • Dinoprost
  • Hydroxyprostaglandin Dehydrogenases
  • prostaglandin-F synthase
  • Intramolecular Oxidoreductases
  • Prostaglandin-E Synthases
  • Dinoprostone
  • lysophosphatidic acid