Background: Lysophosphatidic acid (LPA) is a bioactive lipid inducing proliferation, differentiation as well as cytokine release by mast cells through G-protein coupled receptors. Recently GPR92/LPA5 was identified as an LPA receptor highly expressed by cells of the immune system, which prompted us to investigate its presence and influence on mast cells. Principal Findings: Transcript analysis using quantitative real-time PCR revealed that LPA5 is the most prevalent LPA-receptor in human mast cells. Reduction of LPA5 levels using shRNA reduced calcium flux and abolished MIP-1β release in response to LPA. Conclusions: LPA5 is a bona fide LPA receptor on human mast cells responsible for the majority of LPA induced MIP-1β release. © 2011 Lundequist, Boyce.
CITATION STYLE
Lundequist, A., & Boyce, J. A. (2011). LPA5 is abundantly expressed by human mast cells and important for Lysophosphatidic acid induced MIP-1β release. PLoS ONE, 6(3). https://doi.org/10.1371/journal.pone.0018192
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