Co- and polymicrobial infections in the gut mucosa: The host-microbiota-pathogen perspective.
Cell Microbiol
; 23(2): e13279, 2021 02.
Article
en En
| MEDLINE
| ID: mdl-33040471
ABSTRACT
Infections in humans occur in the context of complex niches where the pathogen interacts with both the host microenvironment and immune response, and the symbiotic microbial community. The polymicrobial nature of many human infections adds a further layer of complexity. The effect of co- or polymicrobial infections can result in enhanced severity due to pathogens cooperative interaction or reduced morbidity because one of the pathogens affects the fitness of the other(s). In this review, the concept of co-infections and polymicrobial interactions in the context of the intestinal mucosa is discussed, focusing on the interplay between the host, the microbiota and the pathogenic organisms. Specifically, we will examine examples of pathogen-cooperative versus -antagonistic behaviour during co- and polymicrobial infections. We discuss the infection-induced modulation of the host microenvironment and immune responses; the direct modulation of the microorganism's fitness; the potentiation of inflammatory/carcinogenic conditions by polymicrobial biofilms; and the promotion of co-infections by microbial-induced DNA damage. Open questions in this very exciting field are also highlighted.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Interacciones Huésped-Patógeno
/
Interacciones Microbianas
/
Coinfección
/
Microbioma Gastrointestinal
/
Inmunidad
/
Mucosa Intestinal
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Cell Microbiol
Asunto de la revista:
MICROBIOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Suecia