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Updated: May 28, 2026

Derivation of Glial Restricted Precursors from E13 mice
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Pla2g6 Deficiency Induces Neuronal Precursor Apoptosis During Neurodevelopment.

Yang-Jin Shen1, Han-Fang Liu1, Ting-Chen Hsu1

  • 1Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan.

International Journal of Molecular Sciences
|May 27, 2026
PubMed
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Phospholipase A2 group VI (PLA2G6) regulates neuronal precursor survival during development. Its deficiency increases apoptosis and sensitivity to oxidative stress, impacting neurogenesis.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genetics

Background:

  • Mutations in Phospholipase A2 group VI (PLA2G6) cause neurodegenerative disorders like parkinsonism.
  • PLA2G6 dysfunction is linked to early-onset neurodegeneration, suggesting a role in development.
  • The precise role of PLA2G6 in early neurogenesis is not well understood.

Purpose of the Study:

  • To investigate the function of Pla2g6 in early neurogenesis using zebrafish embryos.
  • To determine if Pla2g6 regulates neuronal precursor survival and its response to oxidative stress.

Main Methods:

  • Utilized zebrafish embryos for loss- and gain-of-function studies of Pla2g6.
  • Employed CRISPR/Cas9 technology for gene editing to create Pla2g6 deficiency.
  • Analyzed neural progenitor and precursor cell populations, proliferation, and apoptosis.
Keywords:
Pla2g6apoptosisneurogenesisneuronal precursorsoxidative stressparkinsonism

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  • Assessed the impact of oxidative stress on neuronal apoptosis with varying Pla2g6 levels.

    • Main Results:

    • Pla2g6 is dynamically expressed in the developing central nervous system during neurogenesis.
    • Pla2g6 deficiency reduced neuronal precursors without affecting progenitor formation or proliferation.
    • Neuronal precursor cell death via apoptosis was identified as the primary mechanism.
    • Pla2g6 deficiency exacerbated reactive oxygen species-induced apoptosis, while overexpression conferred protection.

    Conclusions:

    • Pla2g6 is essential for neuronal precursor survival during early neurogenesis.
    • PLA2G6 plays a critical role in regulating oxidative stress-associated apoptotic signaling.
    • This study links lipid homeostasis and oxidative stress control to neural development, providing a framework for PLA2G6-associated disorders.