Genetically divergent strains of feline immunodeficiency virus from the domestic cat (Felis catus) and the African lion (Panthera leo) share usage of CD134 and CXCR4 as entry receptors.
The env open reading frames of African lion (Panthera leo) lentivirus (feline immunodeficiency virus [FIV(Ple)]) subtypes B and E from geographically distinct regions of Africa suggest two distinct ancestries, with FIV(Ple)-E sharing a common ancestor with the domestic cat (Felis catus) lentivirus (FIV(Fca)). Here we demonstrate that FIV(Ple)-E and FIV(Fca) share the use of CD134 (OX40) and CXCR4 as a primary receptor and coreceptor, respectively, and that both lion CD134 and CXCR4 are functional receptors for FIV(Ple)-E. The shared usage of CD134 and CXCR4 by FIV(Fca) and FIV(Ple)-E may have implications for in vivo cell tropism and the pathogenicity of the E subtype among free-ranging lion populations.
McEwan
William A
WA
Faculty of Veterinary Medicine, Retrovirus Research Laboratory, Institute of Comparative Medicine, University of Glasgow, Bearsden Road, Glasgow, United Kingdom.
McMonagle
Elizabeth L
EL
Logan
Nicola
N
Serra
Rodrigo C
RC
Kat
Pieter
P
Vandewoude
Sue
S
Hosie
Margaret J
MJ
Willett
Brian J
BJ
D000818:Animals; D002415:Cats / Q000821:virology*; D002460:Cell Line; D017930:Genes, Reporter; D015726:Giant Cells / Q000166:cytology / Q000821:virology; D016089:Immunodeficiency Virus, Feline / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D008045:Lions / Q000821:virology*; D008156:Luciferases / Q000235:genetics / Q000378:metabolism; D008969:Molecular Sequence Data; D012367:RNA, Viral / Q000235:genetics; D019718:Receptors, CXCR4 / Q000378:metabolism*; D053262:Receptors, OX40 / Q000378:metabolism*; D011991:Receptors, Virus; D017422:Sequence Analysis, DNA; D053586:Virus Internalization
D012367:RNA, Viral; D019718:Receptors, CXCR4; D053262:Receptors, OX40; D011991:Receptors, Virus; D008156:Luciferases