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Genetic diversity of Candida albicans isolates recovered from hospital environments and patients with severe acquired brain injuries.
Scordino, Fabio; Giuffrè, Letterio; Felice, Maria Rosa; Orlando, Maria Grazia; Medici, Maria Antonietta; Marino Merlo, Francesca; Romeo, Orazio.
Afiliación
  • Scordino F; Scientific Institute for Research, Hospitalization and Health Care (IRCCS) - Centro Neurolesi "Bonino-Pulejo", S.S.113 Via Palermo C/da Casazza, 98124 Messina, Italy.
  • Giuffrè L; Department of Veterinary Sciences, University of Messina, Polo Universitario dell'Annunziata, 98168 Messina, Italy.
  • Felice MR; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres, 31, 98166 Messina, Italy.
  • Orlando MG; Scientific Institute for Research, Hospitalization and Health Care (IRCCS) - Centro Neurolesi "Bonino-Pulejo", S.S.113 Via Palermo C/da Casazza, 98124 Messina, Italy.
  • Medici MA; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres, 31, 98166 Messina, Italy.
  • Marino Merlo F; Scientific Institute for Research, Hospitalization and Health Care (IRCCS) - Centro Neurolesi "Bonino-Pulejo", S.S.113 Via Palermo C/da Casazza, 98124 Messina, Italy.
  • Romeo O; Scientific Institute for Research, Hospitalization and Health Care (IRCCS) - Centro Neurolesi "Bonino-Pulejo", S.S.113 Via Palermo C/da Casazza, 98124 Messina, Italy; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres, 31
Infect Genet Evol ; 76: 104068, 2019 12.
Article en En | MEDLINE | ID: mdl-31614212
Although the epidemiology of pathogenic Candida species causing invasive human diseases is changing, Candida albicans still remains the most common cause of bloodstream infections worldwide. The propensity of this pathogen to cause infections is undoubtedly the result of its unique genetic plasticity that allow it to adapt and respond quickly to a myriad of changing conditions both in the host and in the environment. For this reason, we decided to investigate the genetic diversity of this important fungal pathogen in a particular category of patients with severe neurological deficits including the hospital environments where they are hospitalized. Genetic diversity of 21 C. albicans isolates recovered from blood, hands of healthcare workers and hospital environments was evaluated by using multilocus sequence typing (MLST) which revealed a high genetic heterogeneity with a set of 18 diploid sequence types (DSTs) recovered among 21 isolates investigated. Interestingly, 13 of these 18 MLST genotypes were completely new and added to the C. albicans MLST central database. Six eBURST clonal complexes (CC-1, CC-2, CC-6, CC-9, CC-27 and CC-42) and three singletons contained all DSTs found in this study. Among all the new DSTs identified, DST3388 was the most intriguing as this genotype was recovered from a typical C. albicans isolate clustering within the MLST-Clade 13, the most divergent evolutionary lineage within C. albicans population containing only isolates with unusual phenotypes originally known as Candida africana. In conclusion, the results of this study expand our understanding of the molecular epidemiology and global population structure of C. albicans suggesting that further studies on different categories of patients and hospital environments are needed to better understand how the population of this species adapts and evolves in heterogeneous hosts and changing environments.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Lesiones Encefálicas / Candida albicans / Candidiasis / Tipificación de Secuencias Multilocus Tipo de estudio: Prognostic_studies Límite: Female / Humans / Male Idioma: En Revista: Infect Genet Evol Asunto de la revista: BIOLOGIA / DOENCAS TRANSMISSIVEIS / GENETICA Año: 2019 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Lesiones Encefálicas / Candida albicans / Candidiasis / Tipificación de Secuencias Multilocus Tipo de estudio: Prognostic_studies Límite: Female / Humans / Male Idioma: En Revista: Infect Genet Evol Asunto de la revista: BIOLOGIA / DOENCAS TRANSMISSIVEIS / GENETICA Año: 2019 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Países Bajos