Document 2019 DOCN M94A2019 TI Host factors in the immunopathogenesis of human immunodeficiency virus (HIV) disease. DT 9412 AU Fauci AS; National Institute of Allergy and Infectious Diseases, NIH,; Bethesda, MD 20892. SO Int Conf AIDS. 1994 Aug 7-12;10(1):4 (abstract no. PS2). Unique Identifier : AIDSLINE ICA10/94370556 AB A complex array of immunopathogenic mechanisms that are multiphasic and multifactorial are involved in the establishment and progression of HIV disease. Following primary infection, an acute viremia occurs with wide dissemination of HIV. During this early viremic phase, virus enters the lymphoid tissue, trapped within the processes of follicular dendritic cells. In addition, during this phase of primary infection certain patients show major expansions of certain V beta subsets of CD8+ T cells which are manifestations of responses to HIV and which may be associated with both protective and harmful effects. Thus, events that occur soon after initial infection with HIV are critical to the subsequent course of HIV disease and may be extremely important in the control of the progression of HIV infection. In addition, inappropriate immune activation and elevated secretion of certain immunoregulatory cytokines occur during HIV infection. These cytokines play a role in the regulation of HIV expression in the tissues and, ultimately, influence the course of disease. In studies of HIV-infected individuals who are long term non-progressors despite up to 11 years of infection, it was found that these patients have preserved lymph node architecture, low viral burden and viral expression compared to individuals who are infected for comparable periods of time, but who progress in their HIV disease. The implications of host factors in the immunopathogenesis of HIV disease will be discussed. DE Antigens, CD8/IMMUNOLOGY Cytokines/IMMUNOLOGY/SECRETION Dendritic Cells/IMMUNOLOGY Human HIV Infections/*IMMUNOLOGY Lymphocyte Subsets/*IMMUNOLOGY Precipitating Factors T-Lymphocytes/IMMUNOLOGY Viremia/IMMUNOLOGY MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).