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1996-03-09
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Document 0422
DOCN M9650422
TI Comparative study of the cell tropism of feline immunodeficiency virus
isolates of subtypes A, B and D classified on the basis of the env gene
V3-V5 sequence.
DT 9605
AU Hohdatsu T; Hirabayashi H; Motokawa K; Koyama H; Department of
Veterinary Infectious Diseases, School of; Veterinary Medicine and
Animal Sciences, Kitasato University,; Aomori, Japan.
SO J Gen Virol. 1996 Jan;77 ( Pt 1):93-100. Unique Identifier : AIDSLINE
MED/96145138
AB Feline immunodeficiency virus (FIV) isolates have been classified into
subtypes A, B, C and D based on the env gene V3-V5 sequence. The cell
tropism of seven new Japanese isolates and a Petaluma (prototype)
isolate of FIV, which classified into subtypes A, B and D, for feline
lymphoblastoid and feline fibroblastoid cell lines was compared. FeT-1
(CD4+/-, CD8-, AND CD9+2) and Kumi-1 (CD4+2, CD8- and CD9+2) cells were
used as the interleukin-2 (IL-2)-dependent feline T-lymphocyte cell
lines and FeT-J (CD4+, CD8+/- and CD9+2) and 3201 (CD4+2, CD8+ and CD9-)
cells were used as the IL-2- independent feline T-lymphocyte cell lines.
The feline fibroblastoid cell lines used were Crandell feline kidney
(CrFK) and fewf-4 (both CD4-, CD8- and CD9+2) cells. All FIV isolates
replicated in all lymphoblastoid cell lines used. All isolates showed
the greatest cytopathogenicity for Kumi-1 cells. All isolates replicated
even in the CD9-negative 3201 cells. More isolates caused persistent
infection in IL-2-independent cell lines than in IL-2-dependent cell
lines. The number of subtype B isolates that established persistent
infection was limited, only one of four strains. Only the subtype A
isolates replicated in CrFK cells, whereas none of the isolates
replicated in fewf-4 cells, which have similar cell surface markers to
CrFK cells. The subtype A viruses (CrFK/Petaluma, CrFK/Sendai-1) growing
in CrFK cells showed greater cytopathogenicity for lymphoblastoid cell
lines than did those (FL-4/Petaluma, Kumi-1/Sendai-1) growing in a
lymphoblastoid cell line.
DE Animal Base Sequence Cats Cell Line Comparative Study
Cytopathogenic Effect, Viral Fibroblasts/VIROLOGY Flow Cytometry
*Genes, env Genes, gag Human Immunodeficiency Virus,
Feline/CLASSIFICATION/GENETICS/ *PHYSIOLOGY Immunophenotyping
Lymphoid Tissue/CYTOLOGY/VIROLOGY Molecular Sequence Data Support,
Non-U.S. Gov't *Virus Replication JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).