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  • Title: Lysophosphatidic acid modulates prostaglandin signalling in bovine steroidogenic luteal cells.
    Author: Kowalczyk-Zieba I, Boruszewska D, Sinderewicz E, Grycmacher K, Woclawek-Potocka I.
    Journal: Prostaglandins Other Lipid Mediat; 2015 Sep; 121(Pt B):218-26. PubMed ID: 26482178.
    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.
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