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  • Title: Monoclonal antibodies with specificity for three different serotypes of Marek's disease viruses in chickens.
    Author: Lee LF, Liu X, Witter RL.
    Journal: J Immunol; 1983 Feb; 130(2):1003-6. PubMed ID: 6184394.
    Abstract:
    A total of 50 antibody-secreting hybridoma cells against Marek's disease virus (MDV) and turkey herpesvirus (HVT) have been produced. Eleven hybridomas were used for serotyping a panel of 15 pathogenic and nonpathogenic strains of MDV and HVT, representing three serotypes. The antibodies from the culture medium have fluorescence antibody (FA) titers of up to 100 and those from mouse ascitic fluid have titers ranging from 10(4) to 10(6). Monoclonal antibody T81 is type-common, i.e., it reacts at equal titer with all MDV and HVT tested. Of the remaining 10 antibodies, eight react only with pathogenic and attenuated strains of MDV (presumably serotype 1), one reacts only with nonpathogenic MDV (presumably) serotype 2), and one reacts only with strains of HVT (presumably serotype 3). Two hybridomas belong to IgG2a and IgG2b subclasses, respectively, and the remaining nine belong to IgG1 subclass. None of the antibodies specific for MDV strains reacted with homologous viruses in serum neutralization (SN), agar gel precipitin (AGP), or membrane immunofluorescence tests. Antibody L78, which is specific for HVT, was reactive with its homologous virus in the SN test; antibody from the culture medium showed an SN titer of 10 and that from mouse ascites a titer of 10,000. None of the antibodies specific for MDV or HVT reacted with other avian or mammalian herpesviruses, avian leukosis viruses (ALV), reticuloendotheliosis viruses (REV), or Marek's disease tumor-associated surface antigen (MATSA) expressed in a lymphoblastoid cell line, MDCC-MSB-1.
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