Investigation of the protective properties of glycosylphosphatidylinositol-based vaccine candidates in a toxoplasma gondii mouse challenge model

Gotze, S., Reinhardt, A., Geissner, A., Azzouz, N., Tsai, Yu-Hsuan ORCID: https://orcid.org/0000-0003-0589-5088, Kurucz, R., Varon Silva, D. and Seeberger, P. H. 2015. Investigation of the protective properties of glycosylphosphatidylinositol-based vaccine candidates in a toxoplasma gondii mouse challenge model. Glycobiology 25 (9) , pp. 984-991. 10.1093/glycob/cwv040

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Abstract

Vaccination against the ubiquitous parasite Toxoplasma gondii would provide the most efficient prevention against toxoplasmosis-related congenital, brain, and eye diseases in humans. We investigated the immune response elicited by pathogen-specific glycosylphosphatidylinositol (GPI) glycoconjugates using carbohydrate microarrays in a BALB/c mouse model. We further examined the protective properties of the glycoconjugates in a lethal challenge model using the virulent T. gondii RH strain. Upon immunization, mice raised antibodies that bind to the respective GPIs on carbohydrate microarrays, but were mainly directed against an unspecific GPI epitope including the linker. The observed immune response, though robust, was unable to provide protection in mice when challenged with a lethal dose of viable tachyzoites. We demonstrate that anti-GPI antibodies raised against the here described semi-synthetic glycoconjugates do not confer protective immunity against T. gondii in BALB/c mice.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Oxford University Press
ISSN:	0959-6658
Date of Acceptance:	2015
Last Modified:	04 Mar 2023 02:46
URI:	https://orca.cardiff.ac.uk/id/eprint/73837

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