Increased virulence of Candida albicans after antineoplastic chemotherapy

Although yeasts of the genus Candida are part of the normal human oral microbiota, in cancer patients they may be associated with invasive fungal infections. Antineoplastic therapy, with its adverse side effects, increases the likelihood of such infection. One of the important virulence factors is t...

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Main Authors: E.G. Kemmelmeier, P.G. Vidigal, T.I.E. Svidzinski
Format: Article
Language:English
Published: São Paulo State University (UNESP) 2011-05-01
Series:Revista de Ciências Farmacêuticas Básica e Aplicada
Subjects:
Online Access:http://rcfba.fcfar.unesp.br/index.php/ojs/article/view/353
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author E.G. Kemmelmeier
P.G. Vidigal
T.I.E. Svidzinski
author_facet E.G. Kemmelmeier
P.G. Vidigal
T.I.E. Svidzinski
author_sort E.G. Kemmelmeier
collection DOAJ
description Although yeasts of the genus Candida are part of the normal human oral microbiota, in cancer patients they may be associated with invasive fungal infections. Antineoplastic therapy, with its adverse side effects, increases the likelihood of such infection. One of the important virulence factors is the capacity of yeast cells to adhere to the surface of medical devices inserted into patients. In this study, we tested the in vitro adhesive and film-growing capacity of four Candida albicans samples, isolated before and during chemotherapy from the oral cavity of a patient with adenocarcinoma. Adherence to the orotracheal tube (OTT) and biofilm production were assessed spectrophotometrically and the amount of film growth was estimated by measuring fungal metabolism. Also, the frequency and size of germ tubes were evaluated. The results showed a significant increase in the germ tube size of C. albicans and also an increase in yeast adherence to the OTT after the start of chemotherapy with mitoxantrone.
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spelling doaj.art-5a964648a6884cffacb340c9a230f5282022-12-21T19:55:51ZengSão Paulo State University (UNESP)Revista de Ciências Farmacêuticas Básica e Aplicada1808-45322179-443X2011-05-01322353Increased virulence of Candida albicans after antineoplastic chemotherapyE.G. KemmelmeierP.G. VidigalT.I.E. SvidzinskiAlthough yeasts of the genus Candida are part of the normal human oral microbiota, in cancer patients they may be associated with invasive fungal infections. Antineoplastic therapy, with its adverse side effects, increases the likelihood of such infection. One of the important virulence factors is the capacity of yeast cells to adhere to the surface of medical devices inserted into patients. In this study, we tested the in vitro adhesive and film-growing capacity of four Candida albicans samples, isolated before and during chemotherapy from the oral cavity of a patient with adenocarcinoma. Adherence to the orotracheal tube (OTT) and biofilm production were assessed spectrophotometrically and the amount of film growth was estimated by measuring fungal metabolism. Also, the frequency and size of germ tubes were evaluated. The results showed a significant increase in the germ tube size of C. albicans and also an increase in yeast adherence to the OTT after the start of chemotherapy with mitoxantrone.http://rcfba.fcfar.unesp.br/index.php/ojs/article/view/353virulence. adherence. candida spp. antineoplastic therapy.
spellingShingle E.G. Kemmelmeier
P.G. Vidigal
T.I.E. Svidzinski
Increased virulence of Candida albicans after antineoplastic chemotherapy
Revista de Ciências Farmacêuticas Básica e Aplicada
virulence. adherence. candida spp. antineoplastic therapy.
title Increased virulence of Candida albicans after antineoplastic chemotherapy
title_full Increased virulence of Candida albicans after antineoplastic chemotherapy
title_fullStr Increased virulence of Candida albicans after antineoplastic chemotherapy
title_full_unstemmed Increased virulence of Candida albicans after antineoplastic chemotherapy
title_short Increased virulence of Candida albicans after antineoplastic chemotherapy
title_sort increased virulence of candida albicans after antineoplastic chemotherapy
topic virulence. adherence. candida spp. antineoplastic therapy.
url http://rcfba.fcfar.unesp.br/index.php/ojs/article/view/353
work_keys_str_mv AT egkemmelmeier increasedvirulenceofcandidaalbicansafterantineoplasticchemotherapy
AT pgvidigal increasedvirulenceofcandidaalbicansafterantineoplasticchemotherapy
AT tiesvidzinski increasedvirulenceofcandidaalbicansafterantineoplasticchemotherapy