RT Journal Article SR Electronic(1) A1 Jimenez-Clavero, Miguel A. A1 Escribano-Romero, Estela A1 Ley, Victoria A1 Spiller, O. BradYR 2005 T1 More recent swine vesicular disease virus isolates retain binding to coxsackie–adenovirus receptor, but have lost the ability to bind human decay-accelerating factor (CD55) JF Journal of General Virology, VO 86 IS 5 SP 1369 OP 1377 DO https://doi.org/10.1099/vir.0.80669-0 PB Microbiology Society, SN 1465-2099, AB Swine vesicular disease virus (SVDV) evolved from coxsackie B virus serotype 5 (CVB5) in the recent past, crossing the species barrier from humans to pigs. Here, SVDV isolates from early and recent outbreaks have been compared for their capacity to utilize the progenitor virus receptors coxsackie–adenovirus receptor (CAR) and decay-accelerating factor (DAF; CD55). Virus titre of CVB5 and SVDV isolates It′66 and UK′72 on human HeLa cells was reduced by pre-incubation with either anti-DAF or anti-CAR antibodies; however, recent SVDV isolates R1072, R1120 and SPA′93 did not infect HeLa cells lytically. CVB5 and SVDV infection of the pig cell line IB-RS-2 was inhibited completely by anti-CAR antibodies for all isolates, and no reduction was observed following pre-incubation of cells with anti-pig DAF antibodies. Expression of human DAF in the pig cell line IB-RS-2 enhanced the virus titre of early SVDV isolates by 25-fold, but had no effect on recent SVDV isolate titre. Binding of radiolabelled CVB5 to IB-RS-2 cells was increased seven- to eightfold by expression of human DAF and binding of early SVDV isolates was increased 1·2–1·3-fold, whereas no increase in binding by recent SVDV isolates was mediated by human DAF expression. Addition of soluble hDAF-Fc inhibited CVB5, but not SVDV, infection of pig cells. Pre-incubation of all viruses with soluble hCAR-Fc blocked infection of IB-RS-2 pig cells completely; titration of the amount of soluble hCAR-Fc required to block infection revealed that early isolate UK′72 was the least susceptible to inhibition, and the most recent isolate, SPA′93, was the most susceptible., UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/vir.0.80669-0