Poliovirus can enter and infect mammalian cells by way of an intercellular adhesion molecule 1 pathway.
Mouse fibroblast cell lines were transfected with truncated forms of the human poliovirus receptor (PVR) cDNA and tested for the expression of functional receptors for poliovirus. Several receptor constructs, all containing the coding region of the first 143 amino acids of PVR, were able to render mouse cells susceptible to poliovirus infection. A deletion of 65 amino acids in the first extracellular domain of PVR prevented virus attachment and infection. These data suggest that domain 1 is necessary and sufficient for the virus-receptor interaction. A PVR/intercellular adhesion molecule 1 hybrid receptor, expressing the PVR variable domain on a truncated receptor molecule for human rhinovirus 14, was shown to be a functional receptor for poliovirus. This observation indicates that, subsequent to attachment to the PVR-binding domain, poliovirus can use the same pathway as the major receptor group rhinoviruses to enter cells.
Department of Microbiology, State University of New York, Stony Brook 11794.
H C
HC
Selinka
A
A
Zibert
E
E
Wimmer
D000818:Animals; D001483:Base Sequence; D015815:Cell Adhesion Molecules / Q000502:physiology*; D003001:Cloning, Molecular; D004252:DNA Mutational Analysis; D066298:In Vitro Techniques; D018799:Intercellular Adhesion Molecule-1; D051379:Mice; D008969:Molecular Sequence Data; D009841:Oligonucleotides / Q000737:chemistry; D017955:Poliovirus / Q000235:genetics*; D016133:Polymerase Chain Reaction; D011991:Receptors, Virus / Q000502:physiology*; D013329:Structure-Activity Relationship; D014162:Transfection; D014779:Virus Replication
D015815:Cell Adhesion Molecules; D009841:Oligonucleotides; D011991:Receptors, Virus; D018799:Intercellular Adhesion Molecule-1