Detection of adult T-cell leukemia-associated antigen in T-cell malignancies in the Nagasaki district of Japan.
Adult T-cell leukemia-associated antigen (ATLA), a human retrovirus-associated antigen, and anti-ATLA antibodies were examined in 52 cases of T-cell malignancies in the Nagasaki district in southwestern Japan, which is known to be an ATL endemic area. These T-cell malignancies included 27 cases of ATL, 2 cases of T-cell chronic lymphocytic leukemia (T-CLL), 18 cases of T-cell lymphoma, and 5 cases of mycosis fungoides. Using the immunofluorescence method, ATLA-positive cells were detected in short-term mass culture of mononuclear cells from 22 of the 27 ATL patients, both T-CLL patients, 17 of 18 T-cell lymphoma patients, and 3 of the 5 mycosis fungoides patients. In an ATL patient in whom a high percentage of ATLA-positive cells were detected, many type C virus particles were observed in the extracellular space of the cultured mononuclear cells with an electron microscope. Sera from all 27 of the ATL patients, the 2 T-CLL patients, 15 of the 18 T-cell lymphoma patients, and 4 of the 5 mycosis fungoides patients were anti-ATLA antibody positive. These results indicate the possible participation of the retrovirus, ATL virus (ATLV), in these T-cell malignancies in ATL-endemic areas.
D000328:Adult; D000368:Aged; D000912:Antibodies, Neoplasm / Q000032:analysis; D000951:Antigens, Neoplasm / Q000032:analysis*; D000956:Antigens, Viral / Q000032:analysis*; D017977:Deltaretrovirus / Q000276:immunology; D005260:Female; D005455:Fluorescent Antibody Technique; D006651:Histocytochemistry; D006801:Humans; D007564:Japan; D007938:Leukemia / Q000276:immunology*; D007945:Leukemia, Lymphoid / Q000276:immunology; D008223:Lymphoma / Q000276:immunology; D008297:Male; D008562:Membrane Glycoproteins; D008854:Microscopy, Electron; D008875:Middle Aged; D009182:Mycosis Fungoides / Q000276:immunology; D012192:Retroviridae Infections / Q000276:immunology*; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology / Q000648:ultrastructure
D000912:Antibodies, Neoplasm; D000951:Antigens, Neoplasm; D000956:Antigens, Viral; D008562:Membrane Glycoproteins; C028388:thymus-leukemia antigens