Abstract
We tested monoclonal IgM anti-GM1 and asialo-GM1 antibodies from 6 patients with chronic motor neuropathies for binding to lipopolysaccharides (LPS) from three stains of Campylobacter jejuni. Four of the 6 patients showed strong reactivity with LPS from at least one of the three C. jejuni strains tested as shown by enzyme-linked immunosorbent assay or western blot. Preabsorption with GM1 or asialo-GM1, or blocking with cholera toxin, prevented antibody binding to LPS. These studies indicate that human anti-GM1 or anti-asialo-GM1 antibodies cross-react with LPS from certain strains of C. jejuni, and that bacterial LPS might provide antigenic stimuli for the activation of B cells expressing anti-GM1 antibodies.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Antibodies, Monoclonal / blood*
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Arachis
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Campylobacter jejuni / immunology*
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Cholera Toxin
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Cross Reactions
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Enzyme-Linked Immunosorbent Assay
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G(M1) Ganglioside / immunology*
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Glycolipids / immunology
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Humans
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Immunoglobulin M / blood*
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Lectins
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Lipopolysaccharides / immunology*
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Motor Neuron Disease / blood
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Motor Neuron Disease / immunology*
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Paraproteinemias / blood
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Paraproteinemias / immunology*
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Peanut Agglutinin
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Plant Lectins
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Species Specificity
Substances
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Antibodies, Monoclonal
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Glycolipids
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Immunoglobulin M
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Lectins
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Lipopolysaccharides
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Peanut Agglutinin
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Plant Lectins
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G(M1) Ganglioside
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asialo GM1 ganglioside
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Cholera Toxin