title: CD8+ T cell subsets in aging.
abstract: Infections are major cause of illness and death amongst elderly people. Peripheral blood CD8+ T lymphocytes -which play a crucial role in host defence against viral infections-. are divided in subsets based upon the expression of several cell and activation markers. Since in senescence changes in peripheral blood CD8+ T lymphocyte compartment have been described, studies were performed to determine whether in aging there are variations in the peripheral blood CD8+CD38+, CD8+CD57+, CD8+HLA-DR+, CD8+CD45RA+ and CD8+CD45RO+ cell subset. A decrease in the CD8+CD45RA+ lymphocytes was observed, indicating that variations in the CD8+ compartment can take place with ageing.
authors.affiliation: School of Medicine, Universidad del País Vasco, Leioa, Vizcaya, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Ruiz
authors.forename: B
authors.initials: B
authors.lastname: Esparza
authors.forename: C
authors.initials: C
authors.lastname: Pérez
authors.forename: M
authors.initials: M
authors.lastname: Barranquero
authors.forename: E
authors.initials: E
authors.lastname: Sabino
authors.forename: F
authors.initials: F
authors.lastname: Merino
mesh_terms: D036541:ADP-ribosyl Cyclase; D051997:ADP-ribosyl Cyclase 1; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000276:immunology*; D015703:Antigens, CD; D000943:Antigens, Differentiation / Q000032:analysis; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D018959:CD57 Antigens / Q000032:analysis; D018414:CD8-Positive T-Lymphocytes / Q000145:classification*; D005260:Female; D006684:HLA-DR Antigens / Q000032:analysis; D006801:Humans; D016130:Immunophenotyping; D017493:Leukocyte Common Antigens / Q000032:analysis; D008297:Male; D008562:Membrane Glycoproteins; D008875:Middle Aged; D009699:N-Glycosyl Hydrolases / Q000032:analysis
chemical_list: D015703:Antigens, CD; D000943:Antigens, Differentiation; D018959:CD57 Antigens; D006684:HLA-DR Antigens; D008562:Membrane Glycoproteins; D017493:Leukocyte Common Antigens; D009699:N-Glycosyl Hydrolases; D036541:ADP-ribosyl Cyclase; C498154:CD38 protein, human; D051997:ADP-ribosyl Cyclase 1