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<Emphasis Type="Italic">Listeria monocytogenes</Emphasis> virulence factor Listeriolysin O favors bacterial growth in co-culture with the ciliate <Emphasis Type="Italic">Tetrahymena pyriformis</Emphasis>, causes protozoan encystment and promotes bacterial survival inside cysts
Authors:Valentina I Pushkareva  Svetlana A Ermolaeva
Institution:(1) Russian Academy of Medical Sciences, Gamaleya Research Institute of Epidemiology and Microbiology, Moscow, Russia
Abstract:

Background  

The gram-positive pathogenic bacterium Listeria monocytogenes is widely spread in the nature. L. monocytogenes was reported to be isolated from soil, water, sewage and sludge. Listeriolysin O (LLO) is a L. monocytogenes major virulence factor. In the course of infection in mammals, LLO is required for intracellular survival and apoptosis induction in lymphocytes. In this study, we explored the potential of LLO to promote interactions between L. monocytogenes and the ubiquitous inhabitant of natural ecosystems bacteriovorous free-living ciliate Tetrahymena pyriformis.
Keywords:
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