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Infection and Immunity, July 1999, p. 3657-3661, Vol. 67, No. 7
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Effect of Escherichia coli Cytotoxic Necrotizing Factor 1 on Repair of Human Bladder Cell Monolayers In Vitro

Michael D. Island,* Xaioling Cui, and John W. Warren

Division of Infectious Diseases, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland

Received 17 December 1998/Returned for modification 29 January 1999/Accepted 31 March 1999

We hypothesized that Escherichia coli cytotoxic necrotizing factor 1 (CNF1) might impair migration or proliferation of bladder cells and could potentially interfere with repair of the bladder epithelium. Using experimentally wounded human T24 bladder epithelial cell monolayers as an in vitro model, we found that both the number of T24 cells and the maximum distance they migrated into wounded regions was significantly decreased by bacterial extracts containing E. coli CNF1.


* Corresponding author. Mailing address: Division of Infectious Diseases, Department of Medicine, University of Maryland School of Medicine, 10 S. Pine St., Baltimore, MD 21201-1192. Phone: (410) 706-7560. Fax: (410) 706-8700. E-mail: misland{at}clark.net.


Infection and Immunity, July 1999, p. 3657-3661, Vol. 67, No. 7
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.



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