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1996-02-26
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Document 0900
DOCN M9620900
TI Cytotoxic T lymphocytes specific for the synthetic VEINCTR peptide, a
sequence found within the Fas molecule and env gp120 in the blood of
HIV-1 seropositive individuals.
DT 9602
AU Moukrim Z; Achour A; Laboratoire de Physiologie Cellulaire, Universite
Pierre et; Marie Curie, Paris, France.
SO Cell Mol Biol (Noisy-le-grand). 1995 May;41(3):439-44. Unique Identifier
: AIDSLINE MED/96059406
AB We have previously identified a VEINCTR peptide common to both the
Fasmolecule and HIV-1 gp120. Here we report the characterization in
PBMCs from HIV-1-infected individuals of a CD8+ class I restricted CTL
activity directed towards this peptide. The peptide is highly conserved
in various HIV-1 strains, being located at amino acid 287-293 (VEINCTR),
within an epitope known as cell T epitope on the env protein of human
immunodeficiency virus type-1. Cell cultures were obtained by polyclonal
activation using autologous blast cells and CTL lines generated from
frozen peripheral blood lymphocytes of HIV-1 seropositive donors by
stimulation with the peptide and recombinant interleukin-2. The
env-specific CTL turned out to kill autologous target cells infected
with a recombinant vaccinia virus containing the env gene of HIV-1 or
pulsed with peptide. Specificity was determined using shorter peptides.
The CTL activity was directed against autologous target cells presenting
the heptapeptide which is site located in the Fas molecule, known to be
functionally involved in T-cell apoptosis.
DE Acquired Immunodeficiency Syndrome/*IMMUNOLOGY Amino Acid Sequence
Antigens, CD95/GENETICS/*IMMUNOLOGY Apoptosis
B-Lymphocytes/IMMUNOLOGY/VIROLOGY Cell Line, Transformed Cytotoxicity
Tests, Immunologic Epitopes/*IMMUNOLOGY Human HIV Envelope Protein
gp120/GENETICS/*IMMUNOLOGY HLA-A2 Antigen/IMMUNOLOGY Leukocytes,
Mononuclear/IMMUNOLOGY Lymphocyte Transformation Molecular Sequence
Data Oligopeptides/*IMMUNOLOGY Peptide Fragments/IMMUNOLOGY Support,
Non-U.S. Gov't T-Lymphocytes, Cytotoxic/*IMMUNOLOGY Vaccinia
Virus/IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).