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Infection and Immunity, July 1999, p. 3698-3701, Vol. 67, No. 7
Department of Microbiology, National
University of Ireland, Galway, Ireland,1 and
University Department of Neurology, Institute of Neurological
Sciences, Southern General Hospital, Glasgow,
Scotland2
Received 12 January 1999/Returned for modification 12 February
1999/Accepted 15 April 1999
We examined the reactivity of a panel of anti-GM1
immunoglobulin M monoclonal antibodies (MAbs) cloned from multifocal
motor neuropathy patients with lipopolysaccharides (LPSs) of
Campylobacter jejuni strains, including serotype O:41
strains associated with Guillain-Barré syndrome. The MAbs reacted
with ganglioside GM1 to different degrees, and these
differences in fine specificities for GM1 were reflected in
the different degrees of reactivity with each of the C. jejuni LPSs tested. Antibodies could also be discriminated by the
varying patterns of inhibition by cholera toxin (a GM1
ligand) in LPS binding studies. These results indicate that there is a
substantial heterogeneity among C. jejuni O:41 strains
in their expression of GM1-like epitopes and among the fine
specificities of different neuropathy-associated anti-GM1 antibodies.
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Human Monoclonal Immunoglobulin M Antibodies to Ganglioside
GM1 Show Diverse Cross-Reactivities with
Lipopolysaccharides of Campylobacter jejuni Strains
Associated with Guillain-Barré Syndrome
*
Corresponding author. Mailing address: Department of
Microbiology, National University of Ireland Galway, University Rd., Galway, Ireland. Phone: 353-91-524411, ext. 3163. Fax: 353-91-525700. E-mail: anthony.moran{at}nuigalway.ie.
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