Multiplex assay for detection of strain-specific antibodies against the two variable regions of the G protein of respiratory syncytial virus.
The role of strain differences in respiratory syncytial virus (RSV) disease has not been clearly defined. To investigate the possibility that strain differences contribute to susceptibility to repeat infections, we developed assays to detect antibodies to the two variable regions of the RSV G protein by cloning and expressing the internal variable region at amino acids (aa) 60 to 172 (g1) and the carboxy-terminal variable region at aa 193 to the carboxy terminus (g2) from different genotypes of RSV. The purified proteins were covalently linked to beads with different proportions of red and orange fluorescent dyes and reacted against serum specimens. Antibody reacting against the differently colored beads, and thus against different G polypeptides, was detected by use of flow cytometry and the Luminex system. This assay system detected group- and, to some extent, genotype-specific responses to RSV infection and can be used to investigate the role of strain differences in RSV disease.
Jones
Les P
LP
Respiratory and Enteric Viruses Branch, Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
Zheng
Hao-Qiang
HQ
Karron
Ruth A
RA
Peret
Teresa C T
TC
Tsou
Cecelia
C
Anderson
Larry J
LJ
D000818:Animals; D000914:Antibodies, Viral / Q000097:blood* / Q000276:immunology; D000956:Antigens, Viral / Q000276:immunology*; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D051379:Mice; D008807:Mice, Inbred BALB C; D010455:Peptides / Q000276:immunology*; D018357:Respiratory Syncytial Virus Infections / Q000097:blood / Q000175:diagnosis / Q000276:immunology / Q000821:virology*; D018113:Respiratory Syncytial Virus, Human / Q000276:immunology*; D014613:Vaccines, Attenuated; D014764:Viral Proteins / Q000276:immunology*; D014765:Viral Vaccines / Q000276:immunology
D000914:Antibodies, Viral; D000956:Antigens, Viral; D010455:Peptides; D014613:Vaccines, Attenuated; D014764:Viral Proteins; D014765:Viral Vaccines