期刊
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
卷 1582, 期 1-3, 页码 197-203出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1388-1981(02)00172-5
关键词
lysophospholipid; lysophosphatidic acid; sphingosine 1-phosphate; LPA receptor; S1P receptor; signal transduction
Lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P) are extracellular ligands for a family of G protein-coupled receptors (GPCRs), LPA(1/2/3) and S1P(1/2/3/4/5). Through coupling to multiple classes of G proteins and activating multiple signaling pathways, LPA/S1P receptors have been shown to be integral players for many essential cellular and physiological processes. Generation and analysis of mice deficient in each of LPA(1), LPA(2), S1P(1), S1P(2), and S1P(3) have provided valuable information on the in vivo roles of these receptors. This review is focussed on expression patterns of each receptor gene in wild-type mice, targeted deletion approaches for generating mutant animals, main phenotypes of receptor-null mice, and alterations in signaling characteristics in receptor-deficient primary cells. Altogether, these data give insights to the importance of LPA/S1P receptors at the cellular and organismal level. (C) 2002 Elsevier Science B.V. All rights reserved.
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