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Reactions of the Immune System in Chronic Degenerative Neurological Diseases

Published online by Cambridge University Press:  18 September 2015

P.L. McGeer*
Affiliation:
Kinsmen Laboratory of Neurological Research, Department of Psychiatry, University of British Columbia, Vancouver
E.G. McGeer
Affiliation:
Kinsmen Laboratory of Neurological Research, Department of Psychiatry, University of British Columbia, Vancouver
T. Kawamata
Affiliation:
Kinsmen Laboratory of Neurological Research, Department of Psychiatry, University of British Columbia, Vancouver
T. Yamada
Affiliation:
Kinsmen Laboratory of Neurological Research, Department of Psychiatry, University of British Columbia, Vancouver
H. Akiyama
Affiliation:
Kinsmen Laboratory of Neurological Research, Department of Psychiatry, University of British Columbia, Vancouver
*
Kinsmen Laboratory of Neurological Research, Department of Psychiatry, University of B.C., Vancouver, British Columbia, Canada V6T 1W5
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Abstract:

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Elements consistent with a cell mediated immune response were identified immunohistochemically in amyotrophic lateral sclerosis (ALS) spinal cord and Alzheimer disease (AD) hippocampus. T helper/inducer and cytotoxic/suppressor lymphocytes were detected in affected tissues in both diseases. In addition, abundant reactive microglia were found expressing the major histocompatibility glycoproteins HLA-A,B,C and HLA-DR, as well as receptors for the Fc chain (Fcyγl), for complement 3 and 4, and for vitronectin. In AD, the complement proteins Clq, C4d, C3d and C5b-9 were found on dystrophic neurites, neuropile threads and some neurofibrillary tangles. In ALS, the only complement proteins identified were C4d and C3d. The integrin ligands vitronectin and ICAM-1 were also identified in affected tissues in both diseases.

Type
Research Article
Copyright
Copyright © Canadian Neurological Sciences Federation 1991

References

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