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Cited by 159

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Role of LPA4/p2y9/GPR23 in Negative Regulation of Cell Motility

Open access
Lee, Zendra, Cheng, Ching-Ting, Zhang, Helen, Subler, Mark A., Wu, Jinhua, Mukherjee, Abir, Windle, Jolene J., Chen, Ching-Kang, Fang, Xianjun·2008·Molecular Biology of the Cell

Abstract

Lysophosphatidic acid (LPA) is a ligand of multiple G protein–coupled receptors. The LPA 1–3 receptors are members of the endothelial cell differentiation gene (Edg) family. LPA 4/p2y9/GPR23, a member of the purinergic receptor family, and recently identified LPA 5/GPR92 and p2y5 are structurally distant from the canonical Edg LPA receptors. Here we report targeted disruption of lpa 4 in mice. Although LPA 4-deficient mice displayed no apparent abnormalities, LPA 4-deficient mouse embryonic fibroblasts (MEFs) were hypersensitive to LPA-induced cell migration. Consistent with negative modulation of the phosphatidylinositol 3 kinase pathway by LPA 4, LPA 4 deficiency potentiated Akt and Rac but decreased Rho activation induced by LPA. Reconstitution of LPA 4 converted LPA 4-negative cells into a less motile phenotype. In support of the biological relevance of these observations, ectopic expression of LPA 4 strongly inhibited migration and invasion of human cancer cells. When coexpressed with LPA 1 in B103 neuroblastoma cells devoid of endogenous LPA receptors, LPA 4 attenuated LPA 1-driven migration and invasion, indicating functional antagonism between the two subtypes of LPA receptors. These results provide genetic and biochemical evidence that LPA 4 is a suppressor of LPA-dependent cell migration and invasion in contrast to the motility-stimulating Edg LPA receptors.

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Metadata

Authors
Lee, Z., Cheng, C.-T., Zhang, H., Subler, M. A., Wu, J., Mukherjee, A., Windle, J. J., Chen, C.-K., & Fang, X.
Venue
Molecular Biology of the Cell
Published
2008-12
Volume
19
Issue
12
Pages
5435-5445
ISSN
  • 1059-1524 (ISSN-L)
  • 1939-4586
OpenAlex
W2124900560
Cited by
159
References
1
FWCI
5.21
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Role of LPA4/p2y9/GPR23 in Negative Regulation of Cell Motility. https://app.cochat.ai/papers/10.1091/mbc.e08-03-0316
The paper
Lee, Z., Cheng, C.-T., Zhang, H., Subler, M. A., Wu, J., Mukherjee, A., Windle, J. J., Chen, C.-K., & Fang, X. (2008). Role of LPA4/p2y9/GPR23 in Negative Regulation of Cell Motility. Molecular Biology of the Cell. https://doi.org/10.1091/mbc.e08-03-0316

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