Isolates of Candida albicans that differ in virulence for mice elicit strain-specific antibody-mediated protective responses

Microbes and Infection
Yan HuRobert B Ashman

Abstract

Three distinct isolates of Candida albicans were used to establish systemic and oral infections in inbred mice that are genetically resistant or susceptible to tissue damage. Patterns of infection differed significantly between both yeasts and mouse strains. Systemic infection conferred significant protection against re-challenge with the homologous, but not the heterologous yeast; however, the protective effect was more evident in the tissue-susceptible CBA/CaH mice than in the resistant BALB/c strain. In contrast, oral infection induced protection against both homologous and heterologous oral challenge, although this was significant only in the CBA/CaH mice. CBA/CaH mice produced antibodies of both IgG1 and IgG2a subclasses, whereas BALB/c mice produced predominantly IgG1. Western blotting demonstrated considerable differences between epitopes recognised by serum antibodies from mice of both strains after immunisation with each of the three yeasts. Thus, different strains of yeast show considerable specificity in antibody responses elicited by either systemic or oral infection.

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Citations

Mar 18, 2011·European Journal of Immunology·Nicole JollerAnnette Oxenius
Sep 1, 2014·Journal of Proteomics·Carolina Hernández-HaroConcha Gil
Dec 23, 2016·Microbiology and Immunology·Xiaohuan ZhangYan Hu
Jul 3, 2021·Journal of Fungi·Caroline Patini RezendeFausto Almeida

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