Listeriolysin O: A phagosome-specific cytolysin revisited
نویسندگان
چکیده
منابع مشابه
Listeriolysin O: a genuine cytolysin optimized for an intracellular parasite
Cholesterol-dependent cytolysins (CDCs)* are produced by a large number of pathogenic gram–positive bacteria. A member of this family, listeriolysin O (LLO), is produced by the intracellular pathogen Listeria monocytogenes . A unique feature of LLO is its low optimal pH activity ( 6) which permits escape of the bacterium from the phagosome into the host cell cytosol without damaging the plasma ...
متن کاملPrediction of B-Cell Epitopes in Listeriolysin O, a Cholesterol Dependent Cytolysin Secreted by Listeria monocytogenes
Listeria monocytogenes is a gram-positive, foodborne bacterium responsible for disease in humans and animals. Listeriolysin O (LLO) is a required virulence factor for the pathogenic effects of L. monocytogenes. Bioinformatics revealed conserved putative epitopes of LLO that could be used to develop monoclonal antibodies against LLO. Continuous and discontinuous epitopes were located by using fo...
متن کاملListeriolysin O
Cholesterol-dependent cytolysins (CDCs)* are produced by a large number of pathogenic gram-positive bacteria. A member of this family, listeriolysin O (LLO), is produced by the intracellular pathogen Listeria monocytogenes. A unique feature of LLO is its low optimal pH activity (approximately 6) which permits escape of the bacterium from the phagosome into the host cell cytosol without damaging...
متن کاملDependency of caspase-1 activation induced in macrophages by Listeria monocytogenes on cytolysin, listeriolysin O, after evasion from phagosome into the cytoplasm.
Listeriolysin O (LLO), an hly-encoded cytolysin from Listeria monocytogenes, plays an essential role in the entry of this pathogen into the macrophage cytoplasm and is also a key factor in inducing the production of IFN-gamma during the innate immune stage of infection. In this study, we examined the involvement of LLO in macrophage production of the IFN-gamma-inducing cytokines IL-12 and IL-18...
متن کاملCytolysin-dependent escape of the bacterium from the phagosome is required but not sufficient for induction of the Th1 immune response against Listeria monocytogenes infection: distinct role of Listeriolysin O determined by cytolysin gene replacement.
Listeria monocytogenes evades the antimicrobial mechanisms of macrophages by escaping from the phagosome into the cytosolic space via a unique cytolysin that targets the phagosomal membrane, listeriolysin O (LLO), encoded by hly. Gamma interferon (IFN-gamma), which is known to play a pivotal role in the induction of Th1-dependent protective immunity in mice, appears to be produced, depending on...
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ژورنال
عنوان ژورنال: Cellular Microbiology
سال: 2019
ISSN: 1462-5814
DOI: 10.1111/cmi.12988