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  • Title: A human monoclonal IgG reactive with a private idiotope of a monoclonal IgM with autoantibody activity against myelin-associated glycoprotein.
    Author: Aissa-Fennira FB, Benammar-Elgaaied A, Bouguerra A, Schmitt C, Brouet JC, Dellagi K.
    Journal: Eur J Immunol; 1991 Apr; 21(4):1065-8. PubMed ID: 1708339.
    Abstract:
    One hundred and thirteen sera from patients with monoclonal IgG were tested for reactivity against a panel of 13 human monoclonal IgM having various autoantibody activities: 6 to myelin-associated glycoprotein (MAG), 2 to vimentin intermediate filament protein and 5 to red blood cell antigens [cold agglutinins with specificity directed to I antigen (3 cases), i antigen (1 case) or Pr antigen (1 case)]. One IgG was found to react with a monoclonal IgM with anti-MAG activity. This reactivity was characterized as idiotypic and directed against a private idiotope of the monoclonal IgM. This work provides further evidence for the existence of anti-idiotypic antibody activity of monoclonal Ig occurring in human B cell neoplasias.
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