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Multiple sclerosis: in situ evidence for antibody- and complement-mediated demyelination
M K Storch1, S Piddlesden, M Haltia
1Institute of Neurology, University of Vienna, Wien, Austria.
Annals of Neurology
|April 18, 1998
Summary
Multiple sclerosis involves immunoglobulin and complement deposition during active demyelination. This study highlights the C9neo antigen
Area of Science:
- Neuroimmunology
- Demyelinating diseases
Background:
- Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system.
- The role of complement activation in MS pathogenesis is an area of ongoing research.
Observation:
- This case study details MS with immunoglobulin and complement deposition in active demyelination zones.
- The C9neo antigen, a marker for the activated lytic complement complex, was exclusively found in areas of active myelin destruction.
Findings:
- Macrophages within MS lesions contained myelin antigen, immunoglobulin, and C9neo antigen degradation products.
- Myelin sheath destruction correlated with partial oligodendrocyte loss in active areas and oligodendrocyte reappearance with remyelination in inactive plaque centers.
Implications:
- These findings suggest a significant role for the terminal complement pathway in active myelin damage in MS.
- Understanding complement's role may lead to targeted therapies for MS patients.