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. 1981 Dec;19(4):257-65.
doi: 10.1080/00362178185380431.

Enzyme-linked immunosorbent assays in murine cryptococcosis

E N Scott, H G Muchmore, F G Felton

Enzyme-linked immunosorbent assays in murine cryptococcosis

E N Scott et al. Sabouraudia. 1981 Dec.

Abstract

In this investigation, enzyme-linked immunosorbent assay (ElISA) procedures were used to study the time of appearance and the duration of demonstrable antigen and antibody in body fluids of mice with disseminated cryptococcosis. The ELISA antigen procedure detected cryptococcal capsular polysaccharide (CCP) in the serum and urine of infected mice 3 days after infection--4 days before it could be demonstrated by the latex agglutination procedure. ELISA-reactive antibody was present throughout the course of infection (mean death time, 32 days), whereas antibody was not detected by whole cell agglutination after day 20. High serum concentrations of CCP (titers to 64,000) persisted throughout the course of infection, while antibody declined to low levels with progression of disease. ELISA provides a sensitive system for quantitation and monitoring of antigen (CCP) processing and clearance (or storage), and for cryptococcal antibody formation in progressive cryptococcosis.

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