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Infection and Immunity, October 2000, p. 5539-5545, Vol. 68, No. 10
Department of Microbiology, University of
Alabama at Birmingham, Birmingham, Alabama
Received 17 April 2000/Returned for modification 19 June
2000/Accepted 3 July 2000
Genital antibody responses were compared in female mice immunized
intravaginally (i.vag.) or intranasally (i.n.) with a bacterial protein
antigen (AgI/II of Streptococcus mutans) coupled to the B
subunit of cholera toxin. Serum and salivary antibodies were also
evaluated as measures of disseminated mucosal and systemic responses.
Although i.vag. immunization induced local vaginal immunoglobulin A
(IgA) and IgG antibody responses, these were not disseminated to a
remote secretion, the saliva, and only modest levels of serum
antibodies were generated. In contrast, i.n. immunization was
substantially more effective at inducing IgA and IgG antibody responses
in the genital tract and in the circulation, as well as at inducing IgA
antibodies in the saliva. Moreover, mucosal and systemic antibodies
induced by i.n. immunization persisted for at least 12 months. Analysis
of the molecular form of genital IgA indicated that the majority of
both total IgA and specific IgA antibody was polymeric, and likely
derived from the common mucosal immune system.
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Copyright © 2000, American Society for Microbiology. All rights reserved.
Generation of Female Genital Tract Antibody
Responses by Local or Central (Common) Mucosal Immunization

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Corresponding author. Mailing address: Department of
Microbiology, University of Alabama at Birmingham, 845, 19th St. South, Birmingham, AL 35294-2170. Phone: (205) 934-4480. Fax: (205) 934-3894. E-mail: MWR{at}uab.edu.
Present address: Wyeth-Lederle Vaccines and Pediatrics, Pearl
River, NY 10965.
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