Molecular identification of yeasts from the order Trichosporonales causing superficial infections
Por:
Martinez-Herrera, Erick, Duarte-Escalante, Esperanza, Reyes-Montes M.d.R., Arenas, Roberto, Acosta-Altamirano, Gustavo, Moreno-Coutino, Gabriela, Vite-Garin, Tania Mayela, Meza-Robles, Alejandro, Frias-De-Leon, Maria Guadalupe
Publicada:
1 jul 2021
Ahead of Print:
1 ene 2021
Resumen:
Background: The molecular reclassification of the order Trichosporonales placed the medically relevant Trichosporon species into three genera of the family Trichosporonaceae: Cutaneotrichosporon, Trichosporon, and Apiotrichum. From the clinical and epidemiological standpoint, it is important to identify any species of the family Trichosporonaceae because they present different antifungal susceptibility profiles. In Mexico, little is known about trichosporonosis etiology because the fungi are identified through phenotypic methods. Aims: To identify at a molecular level 12 yeast isolates morfologically compatible with Trichosporon, obtained from patients with superficial infections. Methods: The yeast isolates were obtained from patients with white piedra, onychomycosis, and hand and foot dermatomycosis, and were identified morphologically and genotypically (sequencing of the IGS1 region and phylogenetic analysis using the Maximum Likelihood Method). The phylogenetic analysis included 40 yeast sequences from the order Trichosporonales and one from Cryptococcus neoformans as outgroup. Results: Based on the molecular analysis, we identified three (25%) Trichosporon inkin isolates, two (16.7%) Trichosporon asteroides, two (16.7%) Cutaneotrichosporon mucoides, and one each (8.3%) of Trichosporon aquatile, Trichosporon asahii, Apiotrichum montevideense, Cutaneotrichosporon cutaneum, and Cutaneotrichosporon jirovecii. Conclusions: The molecular characterization of the isolates showed a broad diversity of species within the order Trichosporonales, particularly among onychomycosis. It is essential to identify these yeasts at the species level to delve into their epidemiology. © 2021 Asociación Española de Micología
Filiaciones:
Martinez-Herrera, Erick:
Unidad de Investigación, Hospital Regional de Alta Especialidad de Ixtapaluca, Ixtapaluca, Edo. Méx., Mexico
Duarte-Escalante, Esperanza:
Laboratorio de Micología Molecular, Departamento de Microbiología y Parasitología, Facultad de Medicina, UNAM, Mexico
Reyes-Montes M.d.R.:
Laboratorio de Micología Molecular, Departamento de Microbiología y Parasitología, Facultad de Medicina, UNAM, Mexico
Arenas, Roberto:
Sección de Micología, Hospital General “Dr. Manuel Gea González”, Mexico
Acosta-Altamirano, Gustavo:
Unidad de Investigación, Hospital Regional de Alta Especialidad de Ixtapaluca, Ixtapaluca, Edo. Méx., Mexico
Moreno-Coutino, Gabriela:
Sección de Micología, Hospital General “Dr. Manuel Gea González”, Mexico
Vite-Garin, Tania Mayela:
Laboratorio de Inmunología de Hongos, Departamento de Microbiología y Parasitología, Facultad de Medicina, UNAM, Mexico
Meza-Robles, Alejandro:
Sección de Micología, Hospital General “Dr. Manuel Gea González”, Mexico
Frias-De-Leon, Maria Guadalupe:
Unidad de Investigación, Hospital Regional de Alta Especialidad de Ixtapaluca, Ixtapaluca, Edo. Méx., Mexico
|