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  • Title: Human monoclonal anti-nuclear antibodies produced by human-mouse heterohybridomas.
    Author: Someya A, Kondo H.
    Journal: Clin Exp Immunol; 1986 Jan; 63(1):26-31. PubMed ID: 3514012.
    Abstract:
    To obtain human monoclonal anticentromere antibodies, mouse myelomas were fused with unfractionated mononuclear cells from the peripheral blood of a patient diagnosed as having the CREST variant of scleroderma: with only anticentromere antibodies. After a single fusion an heterohybridoma secreting a human antibody specific for nuclear antigens, as detected by indirect immunofluorescence staining, was isolated. The monoclonal antibody secreted by the clone was of the human IgM class. Indirect immunofluorescence staining of the antibody on HEp-2 cells showed multiple nuclear dots or a discrete speckled pattern resembling that of an anticentromere antibody. Immunoblot analysis showed antibody binding to a 33 kD antigen derived from the nuclear protein fraction. Enzyme-immunoassay results clearly showed that the antibody reacted with the chromosomal protein fraction and not calf thymus DNA.
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