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M9620100.TXT
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1996-02-26
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Document 0100
DOCN M9620100
TI Priming of class I-restricted cytotoxic T lymphocytes by vaccination
with recombinant protein antigens.
DT 9602
AU Schirmbeck R; Deml L; Melber K; Wolf H; Wagner R; Reimann J; Institute
for Medical Microbiology, University of Ulm, Germany.
SO Vaccine. 1995 Jun;13(9):857-65. Unique Identifier : AIDSLINE
MED/96066235
AB We investigated the specific priming of MHC class I-restricted cytotoxic
T lymphocytes (CTL) by different protein antigen preparations in mice.
The recombinant viral protein antigens tested are of potential relevance
for the design of subunit vaccines. They include the hepatitis B virus
(HBV) surface antigen (S-antigen), the HIV-1 gp160 envelope protein, and
a chimeric HIV-1 Pr55-gag/V3-3 retrovirus-like particle. In addition,
ovalbumin (OVA) was tested. The native or denatured particulate
(multimeric) or monomeric form of these protein antigens was injected by
various routes into mice. Class I-restricted CTL were efficiently primed
by a single low-dose injection of HBV S-antigen particles or the
chimeric HIV-1 Pr55-gag/V3-3 particles. After SDS-denaturation,
gel-purified monomeric S-antigen and monomeric Pr55-gag/V3-3 fusion
protein were still very efficient in priming CTL. CTL sensitization was
not detected in a (primary or boosted) response to even high doses of
native OVA or native HIV-1 gp160. Denaturation of these two antigens by
detergent strikingly increased their immunogenicity for CTL.
Immunization of mice with non-treated or SDS-denatured antigenic
peptides representing the relevant CTL-defined epitopes of the tested
protein antigens did not prime CTL. These data indicate that native,
particulate and denatured, monomeric protein antigens efficiently
stimulate a class I-restricted CTL response.
DE Amino Acid Sequence Animal Base Sequence Detergents DNA Primers
Gene Products, env/CHEMISTRY/*IMMUNOLOGY Gene Products,
gag/GENETICS/IMMUNOLOGY Hepatitis B Surface
Antigens/CHEMISTRY/*IMMUNOLOGY Histocompatibility Antigens Class
I/*IMMUNOLOGY HIV Envelope Protein gp120/GENETICS/IMMUNOLOGY
HIV-1/*IMMUNOLOGY Mice Mice, Inbred C57BL Molecular Sequence Data
Ovalbumin/IMMUNOLOGY Peptide Fragments/GENETICS/IMMUNOLOGY Protein
Denaturation Protein Precursors/CHEMISTRY/GENETICS/*IMMUNOLOGY
Recombinant Proteins/CHEMISTRY/IMMUNOLOGY Spodoptera Support, Non-U.S.
Gov't T-Lymphocytes, Cytotoxic/*IMMUNOLOGY Tumor Cells, Cultured
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).