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M9480501.TXT
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1994-08-20
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Document 0501
DOCN M9480501
TI Direct injection of a recombinant retroviral vector induces human
immunodeficiency virus-specific immune responses in mice and nonhuman
primates.
DT 9410
AU Irwin MJ; Laube LS; Lee V; Austin M; Chada S; Anderson CG; Townsend K;
Jolly DJ; Warner JF; Department of Immunobiology, Viagene, Inc., San
Diego, California; 92121.
SO J Virol. 1994 Aug;68(8):5036-44. Unique Identifier : AIDSLINE
MED/94309169
AB The cytotoxic T-lymphocyte (CTL) response plays an important role in
controlling the severity and duration of viral infections. Immunization
by direct in vivo administration of retroviral vector particles
represents an efficient means of introducing and expressing genes and,
subsequently, the proteins they encode in vivo in mammalian cells. In
this manner foreign proteins can be provided to the endogenous, class I
major histocompatibility complex antigen presentation pathway leading to
CTL activation. A nonreplicating recombinant retroviral vector, encoding
the human immunodeficiency virus type 1 (HIV-1) IIIB envelope and rev
proteins, has been developed and examined for stimulation of immune
responses in mouse, rhesus macaque, and baboon models. Animals were
immunized by direct intramuscular injection of the retroviral vector
particles. Vector-immunized mice, macaques, and baboons generated
long-lived CD8+, major histocompatibility complex-restricted CTL
responses that were HIV-1 protein specific. The CTL responses were found
to be dependent on the ability of the retroviral vector to transduce
cells. The vector also elicited HIV-1 envelope-specific antibody
responses in mice and baboons. These studies demonstrate the ability of
a retroviral vector encoding HIV-1 proteins to stimulate cellular and
humoral immune responses and suggest that retrovector immunization may
provide an effective means of inducing or augmenting CTL responses in
HIV-1-infected individuals.
DE Animal Female Genetic Vectors/ADMINISTRATION & DOSAGE/*IMMUNOLOGY HIV
Antibodies/BIOSYNTHESIS/IMMUNOLOGY HIV-1/GENETICS/*IMMUNOLOGY Macaca
mulatta Mice Mice, Inbred BALB C Papio Support, Non-U.S. Gov't
T-Lymphocytes, Cytotoxic/*IMMUNOLOGY Vaccination JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).