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Updated: May 4, 2026

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ASTROCYTES: EMERGING STARS IN LEUKODYSTROPHY PATHOGENESIS.

Angela Lanciotti1, Maria Stefania Brignone, Enrico Bertini

  • 1Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.

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Summary

Astrocytes, crucial for brain function, are increasingly linked to neurodegenerative diseases like Alexander's disease. This review explores their role in leukodystrophies and potential therapeutic strategies.

Keywords:
Alexander’s diseaseCNS diseasesGlial cellsIon homeostasisLeukodystrophiesMegalencephalic leukoencephalopathy with subcortical cysts (MLC)MyelinVanishing white matter disease

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Pathology

Background:

  • Astrocytes are the primary glial cells in the central nervous system (CNS).
  • Once viewed as structural supports, astrocytes are now known to be vital for CNS development and function.
  • They regulate homeostasis, metabolism, neurogenesis, myelination, and synaptic transmission.

Purpose of the Study:

  • To review the pathophysiological roles of astrocytes.
  • To focus on astrocyte contributions to leukodystrophies, including Alexander's disease, megalencephalic leukoencephalopathy, and vanishing white matter disease.
  • To discuss emerging therapeutic perspectives for neurological disorders involving astrocytes.

Main Methods:

  • Literature review of current scientific knowledge.
  • Analysis of studies on astrocyte function and dysfunction in CNS pathologies.
  • Synthesis of findings related to genetic leukodystrophies and astrocyte involvement.

Main Results:

  • Astrocyte dysfunction is a direct cause of neurodegeneration in conditions like Alexander's disease.
  • Astrocytes play a primary role in the pathogenesis of genetic leukodystrophies.
  • Evidence highlights astrocyte involvement in disease initiation, progression, and resolution.

Conclusions:

  • Astrocytes are central players in the pathogenesis of various leukodystrophies.
  • Understanding astrocyte roles offers new avenues for treating neurological disorders.
  • Targeting astrocyte dysfunction presents promising therapeutic strategies.