Characterization, antifungal susceptibility and virulence of Candida parapsilosis complex isolates in a tertiary hospital in Cantabria, Northern Spain

The correct identification of the species within the Candida parapsilosis complex has become relevant due to the resistance of Candida metapsilosis to antifungals. We describe the characteristics of the Candida parapsilosis complex isolates, with respect to antifungal resistance and biofilm formatio...

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Veröffentlicht in:Enfermedades infecciosas y microbiologia clinica (English ed.) 2023-02, Vol.41 (2), p.99-102
Hauptverfasser: Ruiz de Alegría Puig, Carlos, García Merino, María del Sol, De Malet Pintos-Fonseca, Ana, Agüero Balbín, Jesús
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container_issue 2
container_start_page 99
container_title Enfermedades infecciosas y microbiologia clinica (English ed.)
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creator Ruiz de Alegría Puig, Carlos
García Merino, María del Sol
De Malet Pintos-Fonseca, Ana
Agüero Balbín, Jesús
description The correct identification of the species within the Candida parapsilosis complex has become relevant due to the resistance of Candida metapsilosis to antifungals. We describe the characteristics of the Candida parapsilosis complex isolates, with respect to antifungal resistance and biofilm formation. We perform a descriptive cross-sectional study in 30 strains, collected in a tertiary hospital. All strains, were identified by Vitek2, Vitek-MS™ systems and by ITS sequencing. The antifungal susceptibility profile was obtained with Sensititre™ panels, while biomass production and metabolic activity were quantified by means of crystal violet and XTT reduction assay, respectively. There was a 100% correlation between Vitek-MS™ and ITS sequencing. All isolates were susceptible to the nine antifungals tested. The metabolic activity and biomass production tests did not show any difference among the subtypes. The Vitek-MS™ system provides acceptable identification. We did not find significant differences neither in azole resistance nor in biofilm formation. La correcta identificación del complejo Candida parasilopsis es relevante debido a la resistencia antifúngica de Candida metasilopsis. Describimos las características de aislados del complejo Candida parapsilosis respecto a la resistencia antifúngica y formación de biopelícula. Se realiza un estudio descriptivo transversal de 30 cepas recolectadas en un hospital terciario. Todas se identificaron por los sistemas Vitek2, MALDI-TOF MS Vitek-MSTM y por secuenciación de las regiones ITS. La sensibilidad antifúngica se realizó con paneles SensititreTM. Para la producción de biomasa y la actividad metabólica se emplearon la medición de cristal violeta y el ensayo de reducción de XTT, respectivamente. Hubo una correlación del 100% entre Vitek-MSTM y la secuencia de ITS. Todos los aislados fueron sensibles a los 9 antifúngicos evaluados. Los ensayos de actividad metabólica y producción de biomasa no arrojaron diferencias entre los subtipos. El sistema Vitek-MSTM proporciona una identificación aceptable. No encontramos diferencias significativas ni en la resistencia a azoles ni en la formación de biopelículas.
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La correcta identificación del complejo Candida parasilopsis es relevante debido a la resistencia antifúngica de Candida metasilopsis. Describimos las características de aislados del complejo Candida parapsilosis respecto a la resistencia antifúngica y formación de biopelícula. Se realiza un estudio descriptivo transversal de 30 cepas recolectadas en un hospital terciario. Todas se identificaron por los sistemas Vitek2, MALDI-TOF MS Vitek-MSTM y por secuenciación de las regiones ITS. La sensibilidad antifúngica se realizó con paneles SensititreTM. Para la producción de biomasa y la actividad metabólica se emplearon la medición de cristal violeta y el ensayo de reducción de XTT, respectivamente. Hubo una correlación del 100% entre Vitek-MSTM y la secuencia de ITS. Todos los aislados fueron sensibles a los 9 antifúngicos evaluados. Los ensayos de actividad metabólica y producción de biomasa no arrojaron diferencias entre los subtipos. 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La correcta identificación del complejo Candida parasilopsis es relevante debido a la resistencia antifúngica de Candida metasilopsis. Describimos las características de aislados del complejo Candida parapsilosis respecto a la resistencia antifúngica y formación de biopelícula. Se realiza un estudio descriptivo transversal de 30 cepas recolectadas en un hospital terciario. Todas se identificaron por los sistemas Vitek2, MALDI-TOF MS Vitek-MSTM y por secuenciación de las regiones ITS. La sensibilidad antifúngica se realizó con paneles SensititreTM. Para la producción de biomasa y la actividad metabólica se emplearon la medición de cristal violeta y el ensayo de reducción de XTT, respectivamente. Hubo una correlación del 100% entre Vitek-MSTM y la secuencia de ITS. Todos los aislados fueron sensibles a los 9 antifúngicos evaluados. Los ensayos de actividad metabólica y producción de biomasa no arrojaron diferencias entre los subtipos. 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La correcta identificación del complejo Candida parasilopsis es relevante debido a la resistencia antifúngica de Candida metasilopsis. Describimos las características de aislados del complejo Candida parapsilosis respecto a la resistencia antifúngica y formación de biopelícula. Se realiza un estudio descriptivo transversal de 30 cepas recolectadas en un hospital terciario. Todas se identificaron por los sistemas Vitek2, MALDI-TOF MS Vitek-MSTM y por secuenciación de las regiones ITS. La sensibilidad antifúngica se realizó con paneles SensititreTM. Para la producción de biomasa y la actividad metabólica se emplearon la medición de cristal violeta y el ensayo de reducción de XTT, respectivamente. Hubo una correlación del 100% entre Vitek-MSTM y la secuencia de ITS. Todos los aislados fueron sensibles a los 9 antifúngicos evaluados. Los ensayos de actividad metabólica y producción de biomasa no arrojaron diferencias entre los subtipos. El sistema Vitek-MSTM proporciona una identificación aceptable. No encontramos diferencias significativas ni en la resistencia a azoles ni en la formación de biopelículas.</abstract><cop>Spain</cop><pub>Elsevier España, S.L.U</pub><pmid>36759059</pmid><doi>10.1016/j.eimce.2022.11.016</doi><tpages>4</tpages></addata></record>
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subjects Antifungal Agents - pharmacology
Biofilm
Biopelícula
Candida
Candida metapsilosis
Candida orthopsilosis
Candida parapsilosis
Cross-Sectional Studies
MALDI-TOF MS
Microbial Sensitivity Tests
Spain
Tertiary Care Centers
Virulence
title Characterization, antifungal susceptibility and virulence of Candida parapsilosis complex isolates in a tertiary hospital in Cantabria, Northern Spain
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