Establishment and characterization of an Epstein-Barr virus-negative lymphoma B-cell from a patient with a diffuse large cell lymphoma.

Cell line (LNPL) was established from a tumor biopsy of a nasopharyngeal "histiocytic" lymphoma composed of large noncleaved B-cells. LNPL expressed immunoglobulin M kappa surface immunoglobulin, as did the original tumor. LNPL also expressed Ia antigen but lacked Epstein-Barr virus nuclear antigen. It exhibited a translocation between chromosomes 8 and 14 which has been described in certain other malignant lymphoproliferative disorders. An autologous T-cell line lacked the translocation between chromosomes 8 and 14. LNPL is being used as an immunogen to produce monoclonal antibodies in our laboratory. Such cell lines may facilitate identification of lymphoma-associated surface antigens.