NDLI: Disassembly of F-Actin Cytoskeleton after Interaction of Bacillus cereus with Fully Differentiated Human Intestinal Caco-2 Cells

Content Provider	PubMed Central
Author	Jessica, Minnaard Moal, Vanessa Lievin-le Coconnier, Marie-helene Servin, Alain L. Pérez, Pablo F.
Copyright Year	2004
Abstract	In the present study, the role of direct procaryote-eucaryote interactions in the virulence of Bacillus cereus was investigated. As a model of human enterocytes, differentiated Caco-2 cells were used. Infection of fully differentiated Caco-2 cells with B. cereus in the exponential phase of growth, in order to minimize the concentration of spores or sporulating microorganisms, shows that a strain-dependent cytopathic effect develops. Interestingly, addition of 3-h-old cultures of some strains resulted in complete detachment of the cultured cells after a 3-h infection whereas no such effect was found after a 3-h infection with 16-h-old cultures. Infection of enterocyte-like cells with B. cereus leads to disruption of the F-actin network and necrosis. Even though the effect of secreted factors cannot be ruled out, direct eucaryote-procaryote interaction seems to be necessary. In addition, we observed that some B. cereus strains were able to be internalized in Caco-2 cells. Our findings add a new insight into the mechanisms of virulence of B. cereus in the context of intestinal infection.
Related Links	http://dx.doi.org/10.1128/iai.72.6.3106-3112.2004
Ending Page	3112
Page Count	7
Starting Page	3106
File Format	PDF
ISSN	00199567
e-ISSN	10985522
Journal	Infection and Immunity
Issue Number	6
Volume Number	72
Language	English
Publisher	American Society for Microbiology
Publisher Date	2004-06-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Immunology Microbiology Parasitology Infectious Diseases Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Parasitology Immunology Microbiology

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