title: Hemophiliac immunodeficiency: influence of exposure to factor VIII concentrate, LAV/HTLV-III, and herpesviruses.
abstract: The relationship between hemophiliac immunodeficiency and exposures to factor VIII concentrate, LAV/HTLV-III retrovirus, and infection with Epstein-Barr virus and cytomegalovirus was examined. Exposure to factor VIII concentrate was significantly correlated with decreased percentages of T helper/inducer cells, decreased T helper/suppressor cell ratios, and decreased proliferative responses to plant mitogens. LAV/HTLV-III seropositivity was the primary predictor of increased percentages of HLA-DR-bearing mononuclear cells and decreased proliferative responses to pokeweed mitogen. Epstein-Barr virus and cytomegalovirus infections acted in a synergistic manner with LAV/HTLV-III to produce immunoregulatory defects. Increased percentages of T suppressor cells and decreased delayed cutaneous hypersensitivity skin test responses were observed in LAV/HTLV-III seropositive hemophiliacs infected with Epstein-Barr or cytomegalovirus. We conclude that hemophiliacs receiving commercial factor VIII concentrate experience several stepwise incremental insults to the immune system: alloantigens in factor VIII concentrate, LAV/HTLV-III infections, and herpesvirus infections.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission*; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003587:Cytomegalovirus / Q000276:immunology; D003586:Cytomegalovirus Infections / Q000276:immunology / Q000635:transmission; D017977:Deltaretrovirus / Q000276:immunology; D004340:Drug Contamination; D005169:Factor VIII / Q000009:adverse effects / Q000276:immunology*; D006467:Hemophilia A / Q000276:immunology*; D006566:Herpesviridae Infections / Q000635:transmission*; D004854:Herpesvirus 4, Human / Q000276:immunology; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007108:Immune Tolerance; D007958:Leukocyte Count; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D012882:Skin Tests; D006377:T-Lymphocytes, Helper-Inducer; D050378:T-Lymphocytes, Regulatory
chemical_list: D005169:Factor VIII