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Clin Exp Immunol. 1980 Feb;39(2):477-85.

Human lymphocyte markers defined by antibodies derived from somatic cell hybrids. I. A hybridoma secreting antibody against a marker specific for human B lymphocytes.


A hybridoma has been isolated from the products of fusion of a myeloma cell line with spleen cells from mice immunized with a human B cell line. After cloning, the hybridoma secretes antibody with the following properties: (i) Human B-lymphoblastoid cell lines react with the antibody while T and null cell lines do not. (ii) The antibody reacts with the majority of leucocytes in the blood of patients with CLL, but with a minority of cells in the blood of patients with AML or ALL of the null or T type. (iii) The antibody reacts with 9-21% of mononuclear cells in normal peripheral blood. The reacting cells are not T cells and overlap extensively with cells identified as B cells by other markers. The antigen identified by this antibody appears to be distinct from known B cell markers, and is put forward as a new B cell marker with diagnostic potential.

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