학술논문

CD40, autophagy and Toxoplasma gondii
Document Type
article
Source
Memórias do Instituto Oswaldo Cruz. March 2009 104(2)
Subject
macrophage
lysosome
endosome
IFN-³
nitric oxide
Language
English
ISSN
0074-0276
Abstract
Toxoplasmagondii represents a pathogen that survives within host cells by preventing the endosomal-lysosomal compartments from fusing with the parasitophorous vacuoles. The dogma had been that the non-fusogenic nature of these vacuoles is irreversible. Recent studies revealed that this dogma is not correct. Cell-mediated immunity through CD40 re-routes the parasitophorous vacuoles to the lysosomal compartment by a process called autophagy. Autophagosome formation around the parasitophorous vacuole results in killing of the T. gondii. CD40-induced autophagy likely contributes to resistance against T. gondii particularly in neural tissue.