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Infection and Immunity logoLink to Infection and Immunity
. 1990 Feb;58(2):378–383. doi: 10.1128/iai.58.2.378-383.1990

Caveats in the investigation of form-specific molecules of Candida albicans.

D L Brawner 1, J E Cutler 1, W L Beatty 1
PMCID: PMC258466  PMID: 2404868

Abstract

Numerous reports purporting the existence of form-specific antigens of Candida albicans have been published, but it is generally unclear whether antigenic variability is an acceptable alternative interpretation. In this study, we used indirect immunofluorescence and immunogold electron microscopy to determine the distribution and form specificities of two antigens during yeast and hyphal growth in several defined and complex media. The results confirmed that antigen expression varies with length of incubation, nutrition, and serotype and indicate that the form specificities of antigens may be misinterpreted when conclusions are based exclusively on indirect immunofluorescence and extraction procedures. We therefore suggest that investigations be designed to include serotype A and B isolates grown in both complex and chemically defined media and that agglutination, immunofluorescence, or enzyme-linked immunosorbent assays on whole cells or cell extracts be used as presumptive tests. Confirmation of form-specific antigens should be done by appropriate immunoelectron microscopic evaluation.

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Selected References

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