Sporothrix pathogenic clade: Molecular analysis of animal and human clinical isolates

• Autor(a) principal: Ribeiro-Marques, Mariela Domiciano
• Data de Publicação: 2023
• Outros Autores: Maschio-Lima, Taiza [UNESP], Lemes, Thiago Henrique [UNESP], Siqueira, João Paulo Zen, Brizzotti-Mazuchi, Natália Seron, Caetano, Maicon Henrique [UNESP], Almeida, Bianca Gottardo, Mozaner, Leticia Queiroz [UNESP], Monteiro, Ruan Campos, Camargo, Zoilo Pires, Rodrigues, Anderson Messias, Gottardo De Almeida, Margarete Teresa [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1093/mmy/myac096; http://hdl.handle.net/11449/249023
• topic: MAT1-2; mating-type; species-specific PCR; Sporothrix brasiliensis; sporotrichosis

Sporotrichosis is a subcutaneous mycosis that affects animals and humans. Varying in severity, occurrences range from local lesions to systemic involvement. It is caused by thermodimorphic and saprobic fungi from the Sporothrix pathogenic clade. This study aimed to identify the species and the sexual idiomorph distribution patterns responsible for diagnosed cases of sporotrichosis in São José do Rio Preto, Brazil. We included 188 isolates of Sporothrix sp. from feline lesions and 27 of human origin, which underwent molecular identification and genotyping for mating-type MAT1-1 and MAT1-2. The results showed that Sporothrix brasiliensis is the prevalent species in feline sporotrichosis outbreaks with the overwhelming presence of a single mating-type, MAT1-2 (P <.0001), suggesting a prevalently clonal form of spread. Morphological analyses did not discriminate among cryptic species in the genus Sporothrix, and molecular identification was essential for the correct identification of the species responsible for the observed cases of sporotrichosis. Distribution analyses of MAT1-2 isolates support the hypothesis of unidirectional migration from the current epidemics in São Paulo and Rio de Janeiro to the municipality of São José do Rio Preto.