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Infect Immun, March 1998, p. 1265-1269, Vol. 66, No. 3
0019-9567/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Neither Interleukin-6 nor Inducible Nitric Oxide Synthase Is
Required for Clearance of Chlamydia trachomatis from the
Murine Genital Tract Epithelium
Linda L.
Perry,*
Karen
Feilzer, and
Harlan D.
Caldwell
Laboratory of Intracellular Parasites,
Immunology Section, National Institutes of Allergy and Infectious
Diseases, National Institutes of Health, Rocky Mountain Laboratory,
Hamilton, Montana 59840
Received 9 October 1997/Returned for modification 20 November
1997/Accepted 10 December 1997
Female mice bearing targeted mutations in the interleukin-6
or inducible nitric oxide synthase locus mounted effective
immune responses following vaginal infection with Chlamydia
trachomatis. Chlamydial clearance rates, local Th1 cytokine
production, and host antibody responses were similar to those of
immunocompetent control mice. Therefore, neither gene product appears
to be critical for the resolution of chlamydial infections of the
urogenital epithelium.
*
Corresponding author. Mailing address: Laboratory of
Intracellular Parasites, Rocky Mountain Laboratory, 903 South 4th St., Hamilton, MT 59840. Phone: (406) 363-9328. Fax: (406) 363-9391. E-mail:
Linda_Perry{at}nih.gov.
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