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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1995-1-13
pubmed:abstractText
Feline immunodeficiency virus (FIV) provokes a disease in cats characterized by histopathological lesions similar to those observed in AIDS patients. In order to determine whether endothelial cells from brain microvessels are involved in the central nervous system disease to the same extent as macrophages and microglia, cells were isolated from healthy cat brains, cultured and infected in vitro with the FIV Villefranche IFFA 1/88 strain. The isolated cells displayed typical endothelial cell ultrastructural features and were characterized further by von Willebrand factor-labelling and the binding of specific lectins such as Ulex europaeus lectin on their membrane. They were also able to take up acetylated low density lipoproteins. Two weeks after infection, significant amounts of FIV p24 antigen were detected by indirect immunofluorescence in syncytia and single cells. Concomitantly, the same antigen could be detected in the culture medium of the infected cells by an ELISA technique. Numerous viral particles as well as different steps in the process of viral budding were observed under transmission electron microscopy. The synthesis of FIV p24 antigens still occurred in cells in which replication was blocked in the G2 phase with taxol. Our results suggest the possibility of a productive infection of brain microvascular endothelial cells by FIV in vivo, which could lead to important perturbations in the functions of the blood-brain barrier.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
75 ( Pt 12)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3647-53
pubmed:dateRevised
2004-10-20
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Feline immunodeficiency virus can productively infect cultured endothelial cells from cat brain microvessels.
pubmed:affiliation
Intitut National de la Santé et de la Recherche Médicale U74, Institut de Virologie de la Faculté de Médecine, Strasbourg, France.
pubmed:publicationType
Journal Article