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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Lectin-induced modulation of the antibody response to type III pneumococcal polysaccharide.

Several lectins were tested for their capacity to alter the antibody response to type III pneumococcal polysaccharide (SSS-III). The antibody response was enhanced by concanavalin A (Con A), phytohemagglutinin (PHA), as well as lectins from Phytolacca americana (Pa-2), Pisum sativum (PSA), and Lens culinaris (LCH), when these lectins were given 2 days after immunization with SSS-III; however, suppression was obtained when Con A and Pa-2 were given at the time of immunization. By contrast the lectins from Vicia villosa (VVL) and Bauhinia purpurea (BPA) did not alter the antibody response. Since the lectins PSA and LCH bind to the same monosaccharide as Con A, whereas the other lectins bind to different monosaccharides, these findings indicate that there is no relationship between nominal monosaccharide specificity and the capacity to modulate the antibody response. Substantial increases in the magnitude of the IgG1 antibody response was noted after the administration of Con A whereas profound enhancement of IgG2a antibody response was noted after PHA was given.[1]


  1. Lectin-induced modulation of the antibody response to type III pneumococcal polysaccharide. Taylor, C.E., Stashak, P.W., Caldes, G., Prescott, B., Fowlkes, B.J., Baker, P.J. Cell. Immunol. (1984) [Pubmed]
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