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Mapping immunoreactive epitopes in the human peripheral nervous system using human monoclonal anti-GM1 ganglioside antibodies

O'Hanlon, G.M., Paterson, G.J., Veitch, J., Wilson, G., and Willison, H.J. (1998) Mapping immunoreactive epitopes in the human peripheral nervous system using human monoclonal anti-GM1 ganglioside antibodies. Acta Neuropathologica, 95 (6). pp. 605-616. ISSN 0001-6322

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Abstract

A series of monoclonal IgM anti-GM1 ganglioside antibodies has been cloned from peripheral blood lymphocytes of patients with multifocal motor neuropathy and Guillain-Barré syndrome. In solid-phase immunoassay, the antibodies react with GMI, and also in differing degrees to the structurally related glycolipids asialo-GM1 (GA1) and GD1b. Here we describe the binding patterns of six human anti-GM I antibodies to epitopes within the human nervous system. Antibodies were observed to bind to motor neurons and spinal grey matter, dorsal and ventral spinal roots, dorsal root ganglion neurons, nodes of Ranvier, neuromuscular junctions and skeletal muscle. The distribution of immunoreactive epitopes, which included sensory structures, extended beyond those sites conventionally regarded as pathologically affected in anti-GM1 antibody-associated motor nerve syndromes. This undermines a model of disease pathogenesis based solely on antigen distribution. Factors other than the presence or absence of antigen, such as the local ganglioside topography, antibody penetration into, and pathophysiological vulnerability of a particular site may also influence the clinicopathological outcome of anti-GM1 antibody-mediated autoimmune attack.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Willison, Prof Hugh
Authors: O'Hanlon, G.M., Paterson, G.J., Veitch, J., Wilson, G., and Willison, H.J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation > Immunology
Journal Name:Acta Neuropathologica
ISSN:0001-6322
ISSN (Online):1432-0533

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