Cytomegalovirus-specific immune response and the cellular immune status of malignant lymphoma.
Cytomegalovirus (CMV)-specific immune responses and the general cellular immune status of 24 untreated patients with Hodgkin's disease (HD) and 22 with non-Hodgkin lymphoma (NHL) were evaluated in comparison with matched controls. The incidence of antibodies against CMV-induced early (EA) or late (LA) antigens was not different between patients and controls. LA antibody titres were markedly lower in the lymphoma patients (p = 0.01), especially in the NHL subgroup (p = 0.008), but not in HD patients. EA antibody titre levels were not significantly different between patients and controls. CMV-specific lymphocyte reactivity (LR) was impaired in LA seropositive--and even more so in EA seropositive--lymphoma patients. General cellular immunity tested with LR to mitogens and an antigen cocktail was more disturbed in HD patients (only PWM-LR normal) than in NHL patients (only Con A-LR disturbed). The percentage of circulating T lymphocytes was markedly lowered (less than 60%) in only 2 HD and 4 NHL patients. The impairment of CMV-LR was not directly related to the general cellular immune status of the patients. It appeared furthermore to be virus-specific when it was compared with LR to Epstein-Barr virus antigen. The impairment of CMV-specific immunity in lymphoma patients probably reflects a defect of the immunological defence against endogenous CMV. This defect apparently, occurs early in the course of illness before the general cellular immune status has deteriorated and it may have a pathogenetic significance for lymphoid malignancies.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D003587:Cytomegalovirus / Q000276:immunology*; D005260:Female; D004854:Herpesvirus 4, Human / Q000276:immunology; D006689:Hodgkin Disease / Q000276:immunology*; D006801:Humans; D007111:Immunity, Cellular; D007958:Leukocyte Count; D008213:Lymphocyte Activation; D008223:Lymphoma / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D013601:T-Lymphocytes / Q000276:immunology
D000914:Antibodies, Viral