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The expulsion of Echinostoma trivolvis from C3H Mice: differences in glycoconjugates in mouse versus hamster small intestinal mucosa during infection

Published online by Cambridge University Press:  05 June 2009

T. Fujino  and
B. Fried
T. Fujino
Affiliation:
Department of Parasitology, Faculty of Medicine, Kyushu University, Fukuoka 812, Japan
B. Fried
Affiliation:
Department of Biology, Lafayette College, Easton, PA 18042, USA
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Abstract

Mucosal glycoconjugates were examined in C3H mice and in hamster small intestines infected with Echinostoma trivolvis and in uninfected rodents, using periodic-acid Schiff (PAS) and high-iron diamine-alcian blue (HID-AB) staining and three different fluorescein-conjugated lectins: Triticum vulgaris agglutinin (WGA), Helix pomatia agglutinin (HPA) and Griffonia simplicifolia agglutinin (GSA-II). Lectin-labelling by electron microscopy was also undertaken with WGA and HPA lectin-gold probes. HID-AB stain demonstrated that the most mature goblet cells of the mouse villi contain sulfomucins, whereas those of hamsters contain sialomucins. The expression of lectin-binding sites and the intensity of the lectin binding in the small intestines were changed by echinostome infection. Specific differences in the reaction to mucin glycoproteins were clearly observed between the mouse and hamster intestines infected with E. trivolvis; lectin-binding to hyperplastic goblet cells and crypts in the infected mice increased, while no marked increase in the number of goblet cells and reaction to the glycoconjugates were observed in the infected hamsters. These findings indicate that the expression of terminal N-acetyl-D-galactosamine, sialic acid and N-acetyl-D-glucosamine increased in mucins secreted from hyperplastic goblet cells associated with E. trivolvis infection in mice. No marked increase in these glycoconjugates occurred in hamster infections. These findings reflect clear differences in infectivity of E. trivolvis in C3H mice versus hamsters.

Type
Research Papers
Information
Journal of Helminthology , Volume 70 , Issue 2 , June 1996 , pp. 115 - 121
Copyright
Copyright © Cambridge University Press 1996

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