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- Document 0123
- DOCN M9620123
- TI Immunization trial of cats with a replication-defective adenovirus type
- 5 expressing the ENV gene of feline immunodeficiency virus.
- DT 9602
- AU Gonin P; Fournier A; Oualikene W; Moraillon A; Eloit M; Laboratoire de
- Genetique Moleculaire, Genetique virale, INRA,; Ecole Nationale
- Veterinaire, Maisons Alfort, France.
- SO Vet Microbiol. 1995 Aug;45(4):393-401. Unique Identifier : AIDSLINE
- MED/96021593
- AB Our aim was to develop a recombinant replication-defective adenovirus
- suitable for the vaccination of cats against feline immunodeficiency
- virus. We first demonstrated that this vector was able to transfer a
- marker gene (E. coli beta-galactosidase) in feline cells in vitro. We
- then constructed an adenovirus type 5 expressing the Feline
- Immunodeficiency Virus (FIV) envelope (ENV) gene of the Wo isolate in
- the absence of the rev gene (Ad-ENV-Wo). Ad-ENV-Wo was then tested in
- four cats in a 3 injections scheme (at day 0, day 30 and day 210). Four
- other control cats received Ad-gp50, a similar recombinant adenovirus
- expressing gp50 (Ad-gp50) of pseudorabies virus (PRV). Viruses were
- formulated in two different kind of oil adjuvants (water/oil and
- water/oil/water), a protocol previously shown to enhance the immune
- response against the virus-induced protein. The control cats developed
- neutralizing antibodies against PRV, demonstrating the potency of
- recombinant human adenovirus 5 (Ad5) as a vector in cats. Antibody
- responses appeared after the first injection and were higher with the
- water/oil/water formulation than with the water/oil controls. However,
- none of the four cats vaccinated with Ad-ENV-Wo developed antibodies
- against two peptides of the envelope protein. Animals were challenged
- with 20 infectious doses 50% of the strain Wo. All of them developed
- antibodies against FIV within 4 to 5 weeks, and FIV virus could be
- isolated from all.
- DE beta-Galactosidase/BIOSYNTHESIS/GENETICS
- Adenoviridae/*IMMUNOLOGY/PHYSIOLOGY Animal Antibodies, Viral/BLOOD
- Antibody Formation Cats Cell Line Comparative Study Defective
- Viruses/*IMMUNOLOGY/PHYSIOLOGY Escherichia coli/GENETICS Feline
- Acquired Immunodeficiency Syndrome/BLOOD/IMMUNOLOGY/ *PREVENTION &
- CONTROL Gene Products, env/BIOSYNTHESIS/GENETICS *Genes, env Human
- Immunization Immunodeficiency Virus, Feline/GENETICS/*IMMUNOLOGY
- Recombinant Proteins/BIOSYNTHESIS Support, Non-U.S. Gov't Transfection
- *Viral Vaccines Virus Replication JOURNAL ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
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-