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Related Experiment Video

Updated: Jan 25, 2026

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Myelin in the Central Nervous System: Structure, Function, and Pathology.

Christine Stadelmann1, Sebastian Timmler1, Alonso Barrantes-Freer1

  • 1Institute of Neuropathology, University Medical Center Göttingen , Göttingen , Germany ; Institute of Neuronal Cell Biology, Technical University Munich , Munich , Germany ; German Center for Neurodegenerative Diseases (DZNE), Munich , Germany ; Department of Neuropathology, University Medical Center Leipzig , Leipzig , Germany ; Munich Cluster of Systems Neurology (SyNergy), Munich , Germany ; and Max Planck Institute of Experimental Medicine, Göttingen , Germany.

Physiological Reviews
|May 9, 2019
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Summary

Myelinating oligodendrocytes (OLs) do more than enable nerve conduction; they actively support neurons and maintain brain homeostasis. This review explores OL biology, their expanded roles, and diseases like multiple sclerosis.

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Oligodendrocytes (OLs) myelinate central nervous system axons for rapid nerve conduction.
  • Myelin's role extends beyond saltatory conduction to include neuronal support and homeostasis.
  • OLs interact dynamically within a complex glial and neuronal network.

Purpose of the Study:

  • To review the multifaceted biology of myelin and oligodendrocytes.
  • To explore the expanded functions of oligodendrocytes beyond myelination.
  • To discuss myelin pathologies and the role of glial interactions in demyelination.

Main Methods:

  • Literature review of oligodendrocyte biology and myelin function.
  • Analysis of current research on oligodendrocyte-neuron and oligodendrocyte-glia interactions.
  • Examination of disease mechanisms in demyelinating disorders.

Main Results:

  • Oligodendrocytes provide metabolic support, regulate ion/water balance, and adapt to neuronal activity.
  • Myelin's functions are diverse, involving active participation in neural network regulation.
  • Interactions between astrocytes, oligodendrocytes, and microglia are critical in hereditary white matter diseases.

Conclusions:

  • Oligodendrocytes play active, complex roles in the central nervous system.
  • Understanding these interactions is crucial for deciphering myelin disorders.
  • Further research into molecular mechanisms governing oligodendrocyte function is needed.