title: Human leukemia-associated anti-nuclear reactivity.
abstract: A brilliant, coarsely granular nuclear antigen was detected by anti-complement immunofluorescence in the nuclei of acute myeloid leukemia myeloblasts. Designated as LANA (leukemia-associated nuclear antigen), the reactivity differs from that of the Epstein-Barr-virus-determined nuclear antigen (EBNA) in immunological specificity and morphological appearance, although it is visualized by the same method. Serum from acute myeloid leukemia patients gave positive reactions in 73% of the cases. In acute lymphatic leukemia, chronic myeloid leukemia, chronic lymphatic leukemia, and Burkitt's lymphoma the sera were positive in 35, 14, 19, and 24%, respectively. Two of five polycythemia and two of eleven myeloma sera were also positive. Among 61 healthy controls, 58 were negative, whereas three showed a diffuse nuclear staining with a different pattern. Among 24 carcinoma patients, 18 were negative, whereas six gave a nuclear staining with a different, diffuse pattern. Sera from 20 patients who had recovered from infectious mononucleosis were all negative. In addition to the blasts of acute myeloid leukemia, a similar reactivity was seen with two Epstein-Barr virus DNA and EBNA-negative African lymphoma biopsies and in a short-lived tissue culture line derived from one of them. LANA could be a fetal or tissue-specific antigen, a virally determined antigen, or a specific form of anti-nuclear reactivity.
mesh_terms: D000974:Antibodies, Antinuclear; D000937:Antigen-Antibody Reactions; D000951:Antigens, Neoplasm / Q000032:analysis*; D002051:Burkitt Lymphoma / Q000276:immunology; D002277:Carcinoma / Q000276:immunology; D002467:Cell Nucleus / Q000276:immunology*; D003165:Complement System Proteins; D005455:Fluorescent Antibody Technique; D006801:Humans; D007244:Infectious Mononucleosis / Q000276:immunology; D007945:Leukemia, Lymphoid / Q000276:immunology; D015470:Leukemia, Myeloid, Acute / Q000276:immunology*; D009101:Multiple Myeloma / Q000276:immunology; D011086:Polycythemia / Q000276:immunology
chemical_list: D000974:Antibodies, Antinuclear; D000951:Antigens, Neoplasm; D003165:Complement System Proteins