Set of Classical PCRs for Detection of Mutations in Candida glabrata FKS Genes Linked with Echinocandin Resistance

Clinical echinocandin resistance among Candida glabrata strains is increasing, especially in the United States. Antifungal susceptibility testing is considered mandatory to guide therapeutic decisions. However, these methodologies are not routinely performed in the hospital setting due to their comp...

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Detalles Bibliográficos
Autores: Dudiuk, Catiana Beatriz, Gamarra, Maria Soledad, Leonardelli, Florencia, Jimenez Ortigoza, Cristina, Vitale, Roxana Gabriela, Afeltra, Javier, Perlin, David S., Garcia, Guillermo Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/31060
Acceso en línea:http://hdl.handle.net/11336/31060
Access Level:acceso abierto
Palabra clave:CANDIDA
GLABRATA
RESISTENCIA
EQUINOCANDINAS
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
Descripción
Sumario:Clinical echinocandin resistance among Candida glabrata strains is increasing, especially in the United States. Antifungal susceptibility testing is considered mandatory to guide therapeutic decisions. However, these methodologies are not routinely performed in the hospital setting due to their complexity and the time needed to obtain reliable results. Echinocandin failure in C. glabrata is linked exclusively to Fks1p and Fks2p amino acid substitutions, and detection of such substitutions would serve as a surrogate marker to identify resistant isolates. In this work, we report an inexpensive, simple, and quick classical PCR set able to objectively detect the most common mechanisms of echinocandin resistance in C. glabrata within 4 h. The usefulness of this assay was assessed using a blind collection of 50 C. glabrata strains, including 16 FKS1 and/or FKS2 mutants.