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Borrelia burgdorferi and other related spirochetes bind to galactocerebroside.

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Abstract

Spirochetes are agents of neurologic
disease that may utilize specific neural cell surface molecules for adhesion. Borrelia burgdorferi, the etiologic agent of
Lyme disease, bound to galactocerebroside (GalCer) in numbers that were two- to threefold greater than to ceramide and glucocerebroside, and four- to fivefold greater than to sphingosine, psychosine, sulfatide, cholesterol, and three membrane phospholipids. The adherence was greater to GalCer and ceramide with a higher content of alpha-hydroxyl fatty acids. Treponema phagedenis Reiter and Borrelia hermsii also bound to GalCer. The binding of B burgdorferi to GalCer was inhibited in a concentration-dependent manner by rabbit polyclonal and murine monoclonal antibodies to this glycosphingolipid component of myelin. The monoclonal antibody to GalCer also inhibited adhesion of the organisms to Schwann cells. Neither free D or L monosaccharides nor the lectin peanut agglutinin inhibited binding. Since B burgdorferi and other spirochetes cause neurologic
disease, these results suggest a role for GalCer as a binding site in both the central and peripheral nervous systems.

Neurology. 1992 Jul;42(7):1341-8. Research Support, Non-U.S. Gov’t; Research Support, U.S. Gov’t, P.H.S.

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