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  • Title: Antibody-dependent lymphocyte killer function in human immunodeficiency diseases.
    Author: Rachelefsky GS, McConnachie PR, Ammann AJ, Terasaki PI, Stiehm ER.
    Journal: Clin Exp Immunol; 1975 Jan; 19(1):1-9. PubMed ID: 1081921.
    Abstract:
    Antibody-dependent cell immunity to the lymphocyte system (ABCIL) has been shown to be a function of a non-thymus-processed cell in the experimental animal. To evaluate its role in the human and to assess its clinical usefulness, we assessed ABCIL in twenty-five patients with various immunodeficiency (ID) syndromes. Our technique measures the lysis of 51Cr-labelled normal human lymphocytes coated with HL-A-specific antibody. Cytotoxicity is expressed as a percentage of 51Cr released after subtracting the spontaneous target cell release. Mean values in normals are 20+/-2 (s.e.). The ten patients with AB deficiency had a mean ABCIL of 7-9+/-2 (Pless than0-01). All eight patients with cellular ID had normal ABCIL (18+/-2), while the ten patients with combined ID had variable results. Effector cell function in the ABCIL test correlated (r=0-74; Pless than0-05) with the percentage of B cells in the peripheral blood. No correlation was found between ABCIL function and serum immunoglobulin levels or rosette-forming cells in the peripheral blood. There is a function for B lymphocytes other than as a precursor of antibody-synthesizing cells.
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