Predator or prey? Chlamydophila abortus infections of a free-living amoebae, Acanthamoeba castellani 9GU.
Microbes Infect
; 10(6): 591-7, 2008 May.
Article
em En
| MEDLINE
| ID: mdl-18467146
ABSTRACT
Limited evidence exists to suggest that the ability to invade and escape protozoan host cell bactericidal activity extends to members of the Chlamydiaceae, intracellular pathogens of humans and animals and evolutionary descendants of amoeba-resisting Chlamydia-like organisms. PCR and microscopic analyses of Chlamydophila abortus infections of Acanthamoeba castellani revealed uptake of this chlamydial pathogen but, unlike the well-described inhabitant of A. castellani, Parachlamydia acanthamoebae, Cp. abortus did not appear to propagate and is likely digested by its amoebal host. These data raise doubts about the ability of free-living amoebae to serve as hosts and vectors of pathogenic members of the Chlamydiaceae but reveal opportunities, via comparative genomics, to understand virulence mechanisms used by Chlamydia-like organisms to avoid amoebal digestion.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Virulência
/
Chlamydophila
/
Acanthamoeba castellanii
/
Interações Hospedeiro-Parasita
Limite:
Animals
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article