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Remyelinating the demyelinated CNS.

W F Blakemore¹, P M Smith, R J Franklin

¹Department of Clinical Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES, UK.

Novartis Foundation Symposium

|December 29, 2000

Summary

Glial cell transplantation shows promise for remyelinating the central nervous system (CNS) after myelin loss. The most effective approach involves using committed neural precursor cells, though outcomes remain uncertain.

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Area of Science:

Neuroscience
Regenerative Medicine
Cell Biology

Background:

The central nervous system (CNS) can naturally remyelinate after myelin damage.
Persistent demyelination characterizes multiple sclerosis, leucodystrophies, and spinal cord trauma.
Current therapeutic strategies focus on enhancing intrinsic repair or cell transplantation.

Purpose of the Study:

To review the feasibility of glial cell transplantation for remyelination in the CNS.
To address key challenges for human clinical application of glial transplantation.
To evaluate the potential of exogenous cell sources for myelin repair.

Main Methods:

Review of experimental animal studies on remyelination via cell transplantation.
Discussion of safety, cell source, and prediction of remyelination efficacy.
Focus on multipotent neural precursor cells committed to oligodendrocyte lineage.

Main Results:

Experimental transplantation of myelin-forming cells can remyelinate demyelinated axons.
Glial cell transplantation is a potential strategy for chronic demyelination and axon regeneration.
Multipotent neural precursor cells committed to oligodendrocyte lineage show significant myelinating potential.

Conclusions:

Glial cell transplantation offers a promising therapeutic avenue for demyelinating diseases.
The use of committed neural precursor cells is the most viable approach.
The extent of remyelination achievable with current methods remains unpredictable.

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