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1996-03-04
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Document 0764
DOCN M9640764
TI HIV gp120-specific cell-mediated immune responses in mice after oral
immunization with recombinant Salmonella.
DT 9604
AU Berggren RE; Wunderlich A; Ziegler E; Schleicher M; Duke RC; Looney D;
Fang FC; Division of Infectious Diseases, University of Colorado Health;
Sciences Center, Denver 80267, USA.
SO J Acquir Immune Defic Syndr Hum Retrovirol. 1995 Dec 15;10(5):489-95.
Unique Identifier : AIDSLINE MED/96142210
AB Salmonella is of great interest as a potential human immunodeficiency
virus vaccine vector because of its ability to elicit potent mucosal and
systemic immune responses when administered orally. To determine whether
such a vaccine could elicit an immune response in mice, plasmids
expressing HIV gp120-LAI were introduced into attenuated S. typhimurium.
Three serial doses of 10(10) recombinant organisms were administered
orally to BALB/c mice at 2-week intervals. Immunized mice but not
control mice demonstrated proliferative T cell responses to gp120-LAI,
comparable in magnitude to the proliferative responses to Salmonella
antigens. Immunized mice had detectable serum and intestinal
Salmonella-specific IgA and serum Salmonella-specific IgG. However, no
gp120-specific antibody was detected in either serum or intestinal
washes. These results indicate that live recombinant Salmonella-based
vaccine constructs can induce HIV-specific cellular immune responses in
vivo.
DE Administration, Oral Animal Antibodies, Bacterial/ANALYSIS AIDS
Vaccines/ADMINISTRATION & DOSAGE/*IMMUNOLOGY Base Sequence DNA
Primers/CHEMISTRY Enzyme-Linked Immunosorbent Assay Female HIV
Antibodies/ANALYSIS HIV Envelope Protein gp120/*IMMUNOLOGY HIV
Infections/*IMMUNOLOGY HIV-1/*IMMUNOLOGY Immunity, Cellular
*Immunization Intestinal Mucosa/IMMUNOLOGY Lymphocyte
Transformation/IMMUNOLOGY Male Mice Mice, Inbred BALB C Molecular
Sequence Data Plasmids Salmonella typhimurium/*IMMUNOLOGY Support,
Non-U.S. Gov't Support, U.S. Gov't, P.H.S. T-Lymphocytes/IMMUNOLOGY
Vaccines, Synthetic/ADMINISTRATION & DOSAGE/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).