Bacteriófagos aislados de un arroyo en Brasil lisan superbacterias Klebsiella spp

Autores/as

DOI:

https://doi.org/10.33448/rsd-v14i10.49849

Palabras clave:

Estabilidad fágica, Klebsiella pneumoniae, Microbiología de los alimentos, Terapia fágica, Calidad del agua.

Resumen

Este estudio tuvo como objetivo evaluar bacteriófagos aislados de un arroyo en Brasil que lisan superbacterias del género Klebsiella spp. Klebsiella pneumoniae es una bacteria gramnegativa asociada con altas tasas de infección a nivel mundial y actualmente está catalogada por la Organización Mundial de la Salud (OMS) como un patógeno crítico prioritario para el desarrollo de nuevos antimicrobianos. El uso indiscriminado de antibióticos ha acelerado la aparición de cepas multirresistentes, lo que subraya la urgente necesidad de estrategias terapéuticas alternativas como la fagoterapia. En este estudio, se aislaron dos bacteriófagos (vB_MC_KP1 y vB_MC_KP2) del agua de un arroyo en Minas Gerais, Brasil, un sitio que recibe aguas residuales domésticas y se utiliza para riego y otras actividades humanas. Ambos fagos infectaron específicamente a Klebsiella spp. y se caracterizaron mediante ensayos in vitro que evaluaron el rango de hospedadores y la estabilidad fisicoquímica. Demostraron alta especificidad, actividad lítica contra múltiples especies de Klebsiella y notable estabilidad en un amplio rango de temperaturas y valores de pH. Estos hallazgos indican que los fagos aislados son ambientalmente persistentes y tienen potencial tanto para aplicaciones terapéuticas contra K. pneumoniae multirresistente como para su uso futuro en intervenciones ambientales o de seguridad alimentaria. Se justifica una mayor caracterización molecular y estudios in vivo para validar su aplicación.

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Publicado

2025-10-25

Número

Sección

Ciencias Agrarias y Biológicas

Cómo citar

Bacteriófagos aislados de un arroyo en Brasil lisan superbacterias Klebsiella spp. Research, Society and Development, [S. l.], v. 14, n. 10, p. e151141049849, 2025. DOI: 10.33448/rsd-v14i10.49849. Disponível em: https://rsdjournal.org/rsd/article/view/49849. Acesso em: 6 dec. 2025.