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Infect Immun, July 1998, p. 3443-3446, Vol. 66, No. 7
0019-9567/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Susceptibility of Epithelial Cells to Pseudomonas
aeruginosa Invasion and Cytotoxicity Is Upregulated by Hepatocyte
Growth Factor
Suzanne M. J.
Fleiszig,1,*
Vicky
Vallas,1
Cindy H.
Jun,1
Leo
Mok,1
Daniel F.
Balkovetz,2,
Michael G.
Roth,3 and
Keith E.
Mostov2
The Morton D. Sarver Laboratory for Cornea
and Contact Lens Research, School of Optometry, University of
California, Berkeley,1 and
Department of
Anatomy and Biochemistry, University of California, San
Francisco,2 California, and
University
of Texas Southwestern Medical Center at Dallas, Dallas,
Texas3
Received 6 March 1998/Accepted 16 April 1998
Normal cell polarity protects epithelial cells against
Pseudomonas aeruginosa invasion and cytotoxicity. Using
epithelial cell clones with selective defects in sorting of membrane
constituents, and using hepatocyte growth factor pretreatment, we found
that polarized susceptibility to P. aeruginosa can be
altered without disrupting tight junctions. The results also showed
that cellular susceptibility factors for invasion and cytotoxicity are
not the same, although both are localized to the basolateral cell
surface in polarized epithelial cells.
*
Corresponding author. Mailing address: School of
Optometry, University of California, Berkeley, CA 94720-2020. Phone:
(510) 643-0990. Fax: (510) 643-5109. E-mail:
fleiszig{at}socrates.berkeley.edu.
Present address: Departments of Medicine and Cell Biology,
University of Alabama at Birmingham and Department of Veterans Affairs,
Birmingham Veterans Affairs Medical Center, Birmingham, Alabama.
Infect Immun, July 1998, p. 3443-3446, Vol. 66, No. 7
0019-9567/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
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