Epstein-Barr virus-specific antibodies in patients with adult T-cell leukemia (ATL) and healthy ATL virus-carriers.
Antibodies to Epstein-Barr virus (EBV)-capsid antigen (VCA), early antigen (EA) and EBV-associated nuclear antigen (EBNA) in the sera of 103 patients with adult T-cell leukemia (ATL) and the sera of 243 age- and sex-matched healthy adults, namely 99 anti-ATLA-positive (antibodies to ATL virus-associated antigen) and 144 anti-ATLA-negative individuals, were determined by indirect immunofluorescence. The anti-VCA titers in the sera from ATL patients were within the range observed in healthy controls. Anti-EA was found in 27% of the sera from ATL patients, but in only 8% of the sera from anti-ATLA-negative healthy controls. Antibodies to EBNA, which were present in almost all healthy adults, were not found in 30% of the sera from ATL patients. Of the sera of anti-ATLA-positive healthy adult donors 11% were negative for EBNA antibody. These results suggest that functional impairment of the T-cell system in most ATL patients, and also to a lesser extent in anti-ATLA-positive adults who might be healthy ATLV-carriers, may cause an unusual immune response of antibodies to EBV-associated antigens.
D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D000956:Antigens, Viral / Q000276:immunology; D002213:Capsid / Q000276:immunology; D002353:Carrier State / Q000276:immunology*; D002467:Cell Nucleus / Q000276:immunology; D005260:Female; D004854:Herpesvirus 4, Human / Q000276:immunology*; D006801:Humans; D007121:Immunocompetence; D007938:Leukemia / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D013601:T-Lymphocytes / Q000276:immunology
D000914:Antibodies, Viral; D000956:Antigens, Viral