Aspergillus Galactomannan Enzyme-Linked Immunosorbent Assay Cross-Reactivity Caused by Invasive Geotrichum capitatum

Author:

Giacchino Mareva1,Chiapello Nadia1,Bezzio Stefania1,Fagioli Franca1,Saracco Paola1,Alfarano Alda1,Martini Vincenza2,Cimino Giuseppe2,Martino Pietro2,Girmenia Corrado2

Affiliation:

1. Dipartimento di Scienze Pediatriche e dell'Adolescenza, Università degli Studi, Turin

2. Dipartimento di Biotecnologie Cellulari ed Ematologia, Università La Sapienza, Rome, Italy

Abstract

ABSTRACT We report three cases of invasive Geotrichum capitatum infection in patients with acute leukemia for which an enzyme-linked immunosorbent assay (ELISA) for Aspergillus galactomannan was positive, with no evidence of aspergillosis. Supernatants obtained from suspensions of 17 G. capitatum strains gave positive reactions with the Aspergillus galactomannan ELISA. These clinical and laboratory data seem to suggest that G. capitatum produces a soluble antigen that is cross-reactive with Aspergillus galactomannan.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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