Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos

A candidin, which is a suspension of killed yeast cells, is commonly used for intradermal tests of delayed hypersensitivity, to evaluate the immunological cellular competence of the patient, when the test is applied along with other similar tests. When working with a cellular antigen, the histopatho...

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Published in:Revista do Instituto de Medicina Tropical de São Paulo
Main Authors: Celeste Fava-Netto, Walderez Gambale, Júlio Croce, Claudete R. Paula, Sérgio de C. Fava
Format: Article in Journal/Newspaper
Language:English
Published: Universidade de São Paulo (USP) 1996
Subjects:
Online Access:https://doi.org/10.1590/S0036-46651996000600002
https://doaj.org/article/78e780ff218240e68c26888f793f0d2f
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spelling ftdoajarticles:oai:doaj.org/article:78e780ff218240e68c26888f793f0d2f 2024-09-09T19:27:39+00:00 Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos Celeste Fava-Netto Walderez Gambale Júlio Croce Claudete R. Paula Sérgio de C. Fava 1996-12-01T00:00:00Z https://doi.org/10.1590/S0036-46651996000600002 https://doaj.org/article/78e780ff218240e68c26888f793f0d2f EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651996000600002 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651996000600002 0036-4665 1678-9946 https://doaj.org/article/78e780ff218240e68c26888f793f0d2f Revista do Instituto de Medicina Tropical de São Paulo, Vol 38, Iss 6, Pp 397-399 (1996) Candidin Delayed hypersensitivity Polysaccharide antigen Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1996 ftdoajarticles https://doi.org/10.1590/S0036-46651996000600002 2024-08-05T17:49:31Z A candidin, which is a suspension of killed yeast cells, is commonly used for intradermal tests of delayed hypersensitivity, to evaluate the immunological cellular competence of the patient, when the test is applied along with other similar tests. When working with a cellular antigen, the histopathology of positive skin tests reveals a cellular infiltrate which not only presents a characteristic hypersensitivity reaction but also a neutrophilic abscess in the central part. This research presents the results of a comparison between the yeast cell suspension and the polysaccharide antigens, both obtained from the same strains of Candida albicans. The results obtained by skin tests in one hundred individuals were 61.0% with the polysaccharide antigen and 69.0% with the yeast cell suspension antigen. Concordant results concerning the two antigens were observed in 82.0% of the individuals. The discussion section presents an assumption to explain the differences of positivity obtained with the two antigens. We conclude that the polysaccharide antigen can be utilized in the intradermal test of delayed hypersensitivity to Candida albicans. Candidina, constituída de suspensão de células leveduriformes mortas, é comumente usada em provas intradérmicas de hipersensibilidade retardada, principalmente na avaliação da competência imunológica do paciente, quando usada conjuntamente com outras provas intradérmicas do mesmo tipo. Considerando-se o estudo histopatológico de reação positiva com este tipo de antígeno, é possível obter uma reação positiva não específica na leitura da prova intradérmica. Esta pesquisa apresenta os resultados obtidos a partir da comparação entre o antígeno de suspensão celular e o antígeno polissacarídico, ambos obtidos a partir das mesmas amostras de Candida albicans. As diferenças observadas no estudo histopatológico de reações positivas com antígeno polissacarídico e com antígeno de suspensão celular podem explicar as diferenças observadas nas porcentagens entre reações intradérmicas positivas com ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 38 6 397 399
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Candidin
Delayed hypersensitivity
Polysaccharide antigen
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
spellingShingle Candidin
Delayed hypersensitivity
Polysaccharide antigen
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
Celeste Fava-Netto
Walderez Gambale
Júlio Croce
Claudete R. Paula
Sérgio de C. Fava
Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos
topic_facet Candidin
Delayed hypersensitivity
Polysaccharide antigen
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
description A candidin, which is a suspension of killed yeast cells, is commonly used for intradermal tests of delayed hypersensitivity, to evaluate the immunological cellular competence of the patient, when the test is applied along with other similar tests. When working with a cellular antigen, the histopathology of positive skin tests reveals a cellular infiltrate which not only presents a characteristic hypersensitivity reaction but also a neutrophilic abscess in the central part. This research presents the results of a comparison between the yeast cell suspension and the polysaccharide antigens, both obtained from the same strains of Candida albicans. The results obtained by skin tests in one hundred individuals were 61.0% with the polysaccharide antigen and 69.0% with the yeast cell suspension antigen. Concordant results concerning the two antigens were observed in 82.0% of the individuals. The discussion section presents an assumption to explain the differences of positivity obtained with the two antigens. We conclude that the polysaccharide antigen can be utilized in the intradermal test of delayed hypersensitivity to Candida albicans. Candidina, constituída de suspensão de células leveduriformes mortas, é comumente usada em provas intradérmicas de hipersensibilidade retardada, principalmente na avaliação da competência imunológica do paciente, quando usada conjuntamente com outras provas intradérmicas do mesmo tipo. Considerando-se o estudo histopatológico de reação positiva com este tipo de antígeno, é possível obter uma reação positiva não específica na leitura da prova intradérmica. Esta pesquisa apresenta os resultados obtidos a partir da comparação entre o antígeno de suspensão celular e o antígeno polissacarídico, ambos obtidos a partir das mesmas amostras de Candida albicans. As diferenças observadas no estudo histopatológico de reações positivas com antígeno polissacarídico e com antígeno de suspensão celular podem explicar as diferenças observadas nas porcentagens entre reações intradérmicas positivas com ...
format Article in Journal/Newspaper
author Celeste Fava-Netto
Walderez Gambale
Júlio Croce
Claudete R. Paula
Sérgio de C. Fava
author_facet Celeste Fava-Netto
Walderez Gambale
Júlio Croce
Claudete R. Paula
Sérgio de C. Fava
author_sort Celeste Fava-Netto
title Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos
title_short Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos
title_full Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos
title_fullStr Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos
title_full_unstemmed Candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing Candidina: antígeno para reação de hipersensibilidade de tipo tardio. Comparação de dois antígenos
title_sort candidin: comparison of two antigens for cutaneous delayed hypersensitivity testing candidina: antígeno para reação de hipersensibilidade de tipo tardio. comparação de dois antígenos
publisher Universidade de São Paulo (USP)
publishDate 1996
url https://doi.org/10.1590/S0036-46651996000600002
https://doaj.org/article/78e780ff218240e68c26888f793f0d2f
geographic Arctic
geographic_facet Arctic
genre Arctic
genre_facet Arctic
op_source Revista do Instituto de Medicina Tropical de São Paulo, Vol 38, Iss 6, Pp 397-399 (1996)
op_relation http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651996000600002
https://doaj.org/toc/0036-4665
https://doaj.org/toc/1678-9946
doi:10.1590/S0036-46651996000600002
0036-4665
1678-9946
https://doaj.org/article/78e780ff218240e68c26888f793f0d2f
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