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Publication Detail
Oligodendrocyte dysfunction in the pathogenesis of amyotrophic lateral sclerosis
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Philips T, Bento-Abreu A, Nonneman A, Haeck W, Staats K, Geelen V, Hersmus N, Küsters B, Van Den Bosch L, Van Damme P, Richardson WD, Robberecht W
  • Publication date:
    01/01/2013
  • Pagination:
    471, 482
  • Journal:
    Brain
  • Volume:
    136
  • Issue:
    2
  • Status:
    Published
  • Print ISSN:
    0006-8950
Abstract
Oligodendrocytes are well known targets for immune-mediated and infectious diseases, and have been suggested to play a role in neurodegeneration. Here, we report the involvement of oligodendrocytes and their progenitor cells in the ventral grey matter of the spinal cord in amyotrophic lateral sclerosis, a neurodegenerative disease of motor neurons. Degenerative changes in oligodendrocytes were abundantly present in human patients with amyotrophic lateral sclerosis and in an amyotrophic lateral sclerosis mouse model. In the mouse model, morphological changes in grey matter oligodendrocytes became apparent before disease onset, increasingly so during disease progression, and oligodendrocytes ultimately died. This loss was compensated by increased proliferation and differentiation of oligodendrocyte precursor cells. However, these newly differentiated oligodendrocytes were dysfunctional as suggested by their reduced myelin basic protein and monocarboxylate transporter 1 expression. Mutant superoxide dismutase 1 was found to directly affect monocarboxylate transporter 1 protein expression. Our data suggest that oligodendroglial dysfunction may be a contributor to motor neuron degeneration in amyotrophic lateral sclerosis. © 2013 The Author.
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