Document 0114 DOCN M95A0114 TI Massive activation of immune cells with an intact T cell repertoire in acute human immunodeficiency virus syndrome. DT 9510 AU Cossarizza A; Ortolani C; Mussini C; Borghi V; Guaraldi G; Mongiardo N; Bellesia E; Franceschini MG; De Rienzo B; Franceschi C; Department of Biomedical Sciences, University of Modena School of; Medicine, Italy. SO J Infect Dis. 1995 Jul;172(1):105-12. Unique Identifier : AIDSLINE MED/95318508 AB In 8 patients with symptomatic, acute primary infection with human immunodeficiency virus (HIV), a dramatic and persistent decrease in CD4+ lymphocytes was seen, accompanied by a marked increase in activated/memory CD8+ T cells (CD38+, CD45R0+, HLA-DR+, with high amounts of cell adhesion molecules), which represented most circulating lymphocytes, but no gross alterations in V beta T cell repertoire. Extremely high plasma levels of proinflammatory cytokines were observed. Three patients were followed for 2-3 years: The number of CD4+ cells, extremely low at first, increased significantly in a few months but decreased rapidly after a short stable period. Cytotoxic T lymphocytes bearing markers of immunologic activation/memory could play an important role in the earliest phases of the disease. It remains to be established how such a dramatic onset could determine the rapid progression of the infection that seems characteristic of patients with acute HIV syndrome. DE Acquired Immunodeficiency Syndrome/*IMMUNOLOGY Adult Antigens, CD/BLOOD Biological Markers Comparative Study CD4-Positive T-Lymphocytes/IMMUNOLOGY CD8-Positive T-Lymphocytes/IMMUNOLOGY Female Fluorescent Antibody Technique Human HIV Antibodies/BLOOD HIV Core Protein p24/BLOOD HIV Seropositivity/IMMUNOLOGY *HIV-1 HLA-DR Antigens/BLOOD Immunophenotyping *Lymphocyte Transformation Male Receptors, Antigen, T-Cell, alpha-beta/ANALYSIS Reference Values Support, Non-U.S. Gov't T-Lymphocytes/*IMMUNOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).