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Am. J. Trop. Med. Hyg., 43(2), 1990, pp. 200-206
Copyright © 1990 by The American Society of Tropical Medicine and Hygiene

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Antibody Response to the 43 kDa Glycoprotein of Paracoccidioides brasiliensis as a Marker for the Evaluation of Patients under Treatment

Maria José Soares Mendes Giannini, João Paulo Bueno, Maria Aparecida Shikanai-Yasuda, Ana Maria S. Stolf, Aoi Masuda, Vicente Amato Neto AND Antonio Walter Ferreira
Faculdade de Ciências Farmacêuticas-UNESP, Araraquara, Brazil; Faculdade de Medicina-USP, São Paulo, Brazil; Instituto de Ciências Biomédicas-USP, São Paulo, Brazil; Instituta de Medicina Tropical de São Paulo, Brazil; Centro de Biotecnologia do Estado do Rio Grande do Sul, UFRGS, Brazil

Sera of patients with paracoccidioidomycosis contained IgG-, IgA-, and IgM-specific antibodies to a 43 kDa antigen contained in the filtrate of a culture of Paracoccidioides brasiliensis. IgG- and IgA-specific antibodies were present in all observed patients. The IgM response was more frequent in acute cases, and the mean titers of IgG- and IgM-specific antibodies were higher in the acute forms. By the fourth month of chemotherapy, there was a decay of IgG, IgA, and IgM antibody titers to this antigen in acute cases, correlating with clinical improvement. The detection of IgG and IgA antibodies and the sequential determination of antibodies to the 43 kDa glycoprotein may be useful tools for serodiagnosis and evaluation of therapeutic efficacy.




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M. Yoshida, M. C. Arroyo Sanchez, and M. A. Shikanai-Yasuda
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K. C. Carvalho, M. C. Vallejo, Z. P. Camargo, and R. Puccia
Use of Recombinant gp43 Isoforms Expressed in Pichia pastoris for Diagnosis of Paracoccidioidomycosis
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Copyright © 1990 by the American Society of Tropical Medicine and Hygiene.