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M9490732.TXT
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1994-09-24
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Document 0732
DOCN M9490732
TI Strong immunogenicity of a multicomponent peptide vaccine developed with
the branched lysine oligopeptide method for human immunodeficiency virus
infection.
DT 9411
AU Okuda K; Kaneko T; Yamakawa T; Tanaka S; Shigematsu T; Yamamoto A;
Hamajima K; Nakajima K; Kawamoto S; Phanuphak P; Department of
Bacteriology, Yokohama City University School of; Medicine, Fukuura,
Japan.
SO J Mol Recognit. 1993 Sep;6(3):101-9. Unique Identifier : AIDSLINE
MED/94338751
AB We synthesized one V3 peptide each from HTLV-IIIB, Thai A and Thai B,
conjugating them to the T cell epitope of the env region, and we also
synthesized a p17 protein peptide of the gag region (HGP-30). These
peptides were then coupled to 8-lysine copolymers using N-succinimidyl
maleimido carboxylate (M(r) = ca 60,000). We designated this the
branched lysine oligopeptide method. The large peptide complexes
constructed from these four macromolecular peptides were used with
aluminium hydroxide or complete Freund's adjuvant to immunize mice and
rabbits four times. ELISA assay showed high titres of anti-peptide
antibodies to each V3 loop peptide and the HGP-30 peptide. Strong
inhibition of CD4+ dependent cell fusion was obtained with these
antisera when IIIB, Thai A and Thai B strains of the human
immunodeficiency virus (HIV) were used. Strong anti-fusion inhibition
was also observed with two other HIV strains. In addition, an increase
of the anti-HIV effect was observed when we used sera obtained by
multicomponent vaccine immunization. The same kind of inhibition was
also observed in p24 assay systems using these immunized antisera.
Activation of IL-2 production in lymphocytes was observed in mice
immunized with this vaccine. These results suggest that immunization
with macromolecular peptide complexes can result in strong
immunogenicity towards HIV-1.
DE Amino Acid Sequence Animal AIDS Vaccines/*IMMUNOLOGY/ISOLATION & PURIF
Cell Fusion Comparative Study Gene Products, env/GENETICS/IMMUNOLOGY
Gene Products, gag/GENETICS/IMMUNOLOGY Human HIV
Antibodies/BIOSYNTHESIS HIV Core Protein p24/BIOSYNTHESIS HIV Envelope
Protein gp120/GENETICS/IMMUNOLOGY HIV-1/GENETICS/*IMMUNOLOGY
Immunization Interleukin-2/BIOSYNTHESIS Lymphocytes/IMMUNOLOGY Mice
Mice, Inbred BALB C Molecular Sequence Data Peptide
Fragments/GENETICS/IMMUNOLOGY Peptides/GENETICS/IMMUNOLOGY Rabbits
Support, Non-U.S. Gov't Vaccines, Synthetic/IMMUNOLOGY/ISOLATION &
PURIF JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).