Abstract
SummaryCytotoxic necrotizing factor type 1 (CNF1) from strains of pathogenic Escherichia coli induces in human epithelial HEp‐2 cells, a profound reorganization of the actin cytoskeleton into prominent stress fibres and membrane ruffles. We report here that this process is associated with induction of phagocytic‐like activity. CNF1‐treated cells acquired the ability to ingest latex beads as well as non‐invasive bacteria such as Listeria innocua, which were taken as a model system. Uptake of bacteria was similar to pathogen‐induced phagocytosis, since L. innocua transformed with DNA coding for the pore‐forming toxin listeriolysln O behaved, with respect to intracellular growth, like the invasive, pathogenic species L. monocytogenes. Our results raise the possibility that, in vivo, pathogenic CNF1 ‐producing E. coli may invade epithelia by this novel induced phagocytic‐like mechanism.
Bibliography
Falzano, L., Fiorentini, C., Donelli, G., Michel, E., Kocks, C., Cossart, P., Cabanié, L., Oswald, E., & Boquet, P. (1993). Induction of phagocytic behaviour in human epithelial cells by Escherichia coli cytotoxic necrotizing factor type1. Molecular Microbiology, 9(6), 1247â1254. Portico.
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Dates
Type | When |
---|---|
Created | 18 years, 10 months ago (Oct. 27, 2006, 9:55 p.m.) |
Deposited | 1 year, 10 months ago (Oct. 25, 2023, 2:51 a.m.) |
Indexed | 4 months, 3 weeks ago (April 11, 2025, 5:26 a.m.) |
Issued | 32 years ago (Sept. 1, 1993) |
Published | 32 years ago (Sept. 1, 1993) |
Published Online | 18 years, 10 months ago (Oct. 27, 2006) |
Published Print | 32 years ago (Sept. 1, 1993) |
@article{Falzano_1993, title={Induction of phagocytic behaviour in human epithelial cells by Escherichia coli cytotoxic necrotizing factor type1}, volume={9}, ISSN={1365-2958}, url={http://dx.doi.org/10.1111/j.1365-2958.1993.tb01254.x}, DOI={10.1111/j.1365-2958.1993.tb01254.x}, number={6}, journal={Molecular Microbiology}, publisher={Wiley}, author={Falzano, Loredana and Fiorentini, Carla and Donelli, Gianfranco and Michel, Eric and Kocks, Christine and Cossart, Pascale and Cabanié, Lucien and Oswald, Eric and Boquet, Patrice}, year={1993}, month=sep, pages={1247–1254} }