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. 1995 Feb;63(2):686–689. doi: 10.1128/iai.63.2.686-689.1995

Immunization of rats with the 260-kilodalton Entamoeba histolytica galactose-inhibitable lectin elicits an intestinal secretory immunoglobulin A response that has in vitro adherence-inhibitory activity.

B L Kelsall 1, J I Ravdin 1
PMCID: PMC173050  PMID: 7822040

Abstract

The 260-kDa galactose-inhibitable lectin of Entamoeba histolytica mediates binding of amebic trophozoites to purified colonic mucins and intestinal epithelial cells. Parenteral immunization of Lewis rats with immuno-affinity-purified lectin with Freund's adjuvant and then intra-Peyer's patch inoculation of lectin with cholera toxin B subunit as adjuvant elicited a significant anti-lectin secretory immunoglobulin A response in the bowel lumen. Purified intestinal secretory immunoglobulin A from three or four immunized animals studied possessed inhibitory activity (P < 0.02) in an in vitro assay of trophozoite galactose-specific adherence to Chinese hamster ovary cells.

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Selected References

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