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M9630427.TXT
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1996-02-27
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Document 0427
DOCN M9630427
TI Use of fixed autologous stimulator cells to correctly present human
immunodeficiency virus type 1 viral peptides to nonhuman primate
lymphocytes in proliferation and cytotoxic T-lymphocyte assays.
DT 9603
AU Munroe KJ; Anderson CA; Wu JY; Wyand MS; Newman GW; Newman MJ; Cambridge
Biotech Corporation, Worcester, Massachusetts 01605,; USA.
SO Clin Diagn Lab Immunol. 1994 May;1(3):283-9. Unique Identifier :
AIDSLINE MED/96050824
AB Autologous, virus-transformed lymphoblastoid cell lines were established
by using peripheral blood lymphocytes from rhesus monkeys that were
previously immunized with recombinant human immunodeficiency virus type
1 strain IIIB glycoprotein 160. These autologous cell lines were used to
present human immunodeficiency virus type 1 viral antigens in a
processed and cell-associated manner to T lymphocytes. This was
accomplished by either infecting the cells with recombinant vaccinia
viruses or pulsing them with synthetic peptides and then subjecting them
to a mild fixation step with glutaraldehyde. Fixed antigen-presenting
cells were then used as stimulator cells in vitro to measure
cell-mediated immune responses. Both the vaccinia virus-infected and
peptide-pulsed autologous cells stimulated antigen-specific cellular
proliferative responses. The magnitude of the responses correlated with
the immunization histories of the animals and other measures of
immunity, such as antibody titers. Autologous vaccinia virus-infected
cells were also capable of inducing the in vitro maturation of CD4+ and
CD8+ precursor cytotoxic T lymphocytes into antigen-specific mature
cytotoxic T lymphocytes. The use of stimulator cells to present viral
peptides in a cell-associated manner appeared to be a very sensitive and
versatile manner in which to measure cell-mediated immune responses with
peripheral blood lymphocytes from nonhuman primates. It is likely that a
similar approach will function with peripheral blood lymphocytes from
humans.
DE Amino Acid Sequence Animal Antigen Presentation Antigen-Presenting
Cells/*IMMUNOLOGY Cell Transformation, Viral *Cytotoxicity Tests,
Immunologic Epitopes/IMMUNOLOGY Fixatives/PHARMACOLOGY
Glutaral/PHARMACOLOGY HIV Envelope Protein gp120 HIV-1/*IMMUNOLOGY
Lymphocyte Culture Test, Mixed *Lymphocyte Transformation/DRUG EFFECTS
Macaca mulatta Molecular Sequence Data Support, U.S. Gov't, P.H.S.
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).