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Regulation of Cell Proliferation and Migration by Extracellular Phosphatidic Acid
Ana Gomez-Larrauri1,2, Asier Benito-Vicente1, Kepa B Uribe1
1Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Bizkaia, Spain.
Biomedicines
|March 28, 2026
Summary
Extracellular phosphatidic acid (PA) significantly boosts myoblast proliferation and lung cancer cell migration by activating specific signaling pathways. This highlights PA's crucial role in muscle regeneration and cancer spread.
Area of Science:
- Cell Biology
- Biochemistry
- Oncology
Background:
- Phosphatidic acid (PA) is an endogenous regulator of cell proliferation and migration.
- The role of extracellular PA in controlling cell functions requires further investigation.
Purpose of the Study:
- To review and discuss recent findings on extracellular PA's role in cell homeostasis.
- To focus on PA's regulation of cell growth and migration.
Main Methods:
- Review of current literature on extracellular phosphatidic acid.
- Analysis of signaling pathways activated by PA.
Main Results:
- Exogenous PA stimulates myoblast proliferation and lung cancer cell migration.
- These effects are mediated by PA interaction with lysophosphatidic acid (LPA) receptors.
- PA activates key signaling pathways including MEK/ERK, PI3K/Akt, FAK/Rac1, and JAK2/STAT3.
Conclusions:
- Extracellular PA is critical for muscle cell regeneration and lung cancer dissemination.
- Understanding PA's signaling mechanisms can inform therapeutic strategies for lung cancer.
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