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Infection and Immunity, June 2003, p. 3623-3627, Vol. 71, No. 6
0019-9567/03/$08.00+0 DOI: 10.1128/IAI.71.6.3623-3627.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.
Helicobacter pylori Supernatants Cause Epithelial Cytoskeletal Disruption That Is Bacterial Strain and Epithelial Cell Line Dependent but Not Toxin VacA Dependent
James R. Bebb, Darren P. Letley, Joanne L. Rhead, and John C. Atherton*
Division of Gastroenterology and Institution of Infections, Immunity and Inflammation, University of Nottingham, University Hospital, Nottingham NG7 2VH, United Kingdom
Received 8 November 2002/
Returned for modification 8 January 2003/
Accepted 24 February 2003
We show here that Helicobacter pylori broth culture supernatants disrupt the actin cytoskeleton of epithelial cell lines, leading to cell rounding and apoptosis through anoikis. We demonstrate that there are marked quantitative differences between strains and that there are different cell line sensitivities. By constructing VacA null isogenic mutants, we show that the effect is not due to the vacuolating cytotoxin.
* Corresponding author. Mailing address: Division of Gastroenterology, University Hospital, Nottingham NG7 2UH, United Kingdom. Phone: 44-115-9249924, ext. 41966. Fax: 44-115-9422232. E-mail:
john.atherton{at}nottingham.ac.uk.
Editor: A. D. O'Brien
Infection and Immunity, June 2003, p. 3623-3627, Vol. 71, No. 6
0019-9567/03/$08.00+0 DOI: 10.1128/IAI.71.6.3623-3627.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.
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