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Lysophosphatidic acid signalling

W H Moolenaar1

  • 1Division of Cellular Biochemistry, The Netherlands Cancer Institute, Amsterdam, The Netherlands.

Current Opinion in Cell Biology
|April 1, 1995
PubMed
Summary
This summary is machine-generated.

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Lysophosphatidic acid (LPA), a signaling lipid, activates G protein-coupled receptors to mediate diverse cellular functions. It stimulates cell proliferation via Ras and cytoskeletal changes via Rho.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Signaling

Background:

  • Lysophosphatidic acid (LPA) is a bioactive phospholipid involved in intercellular communication.
  • LPA mediates a wide array of biological responses by activating specific G protein-coupled receptors (GPCRs).

Purpose of the Study:

  • To elucidate the downstream signaling pathways activated by LPA receptors.
  • To understand the roles of small GTP-binding proteins in mediating LPA-induced cellular events.

Main Methods:

  • The study likely involved cell-based assays to investigate signaling pathways.
  • Techniques may include analysis of GTP-binding protein activation (Ras and Rho) and assessment of cellular responses like proliferation and cytoskeletal organization.

Main Results:

Related Experiment Videos

  • LPA receptor activation stimulates cell proliferation, a process mediated by the small GTP-binding protein Ras.
  • LPA signaling also triggers actin-based cytoskeletal rearrangements, a function dependent on the small GTP-binding protein Rho.

Conclusions:

  • LPA receptor signaling utilizes distinct small GTP-binding proteins, Ras and Rho, to regulate separate cellular processes.
  • This highlights the complexity of LPA-mediated signaling in controlling cell growth and morphology.