home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9620123.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
3KB
|
46 lines
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).