title: Immune deficiency in the X-linked lymphoproliferative syndrome. I. Epstein-Barr virus-specific defects.
abstract: Eleven males with XLP were evaluated for EBV-specific antibodies during periods of 2 to 7 yr. Variable responses to EBV-specific antigens were found. All 11 patients had subnormal anti-EBNA titers, which probably reflected a T cell deficiency. The patients showed four different patterns in their anti-VCA response: 1) two boys who had experienced malignant lymphoma mounted no antibodies at all; 2) two patients showed intermittent anti-VCA titers; 3) four males had persistently elevated anti-VCA titers; and 4) three patients showed normal anti-VCA titers. ADCC against EBV-infected cells was abnormally low in six patients and was elevated in two patients given gamma-globulin. ADCC titers did not correlate with anti-VCA titers. However, most patients with XLP failed to effect regression of autologous EBV-infected lymphoblastoid cell lines, indicating a deficiency in long-lived T cell-mediated immunity to EBV.
mesh_terms: D000956:Antigens, Viral; D005260:Female; D004854:Herpesvirus 4, Human / Q000276:immunology*; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D007156:Immunologic Memory; D008232:Lymphoproliferative Disorders / Q000235:genetics / Q000276:immunology*; D008297:Male; D013601:T-Lymphocytes / Q000276:immunology; D014960:X Chromosome
chemical_list: D000956:Antigens, Viral