CD30 expression by CD8+ T cells producing type 2 helper cytokines. Evidence for large numbers of CD8+CD30+ T cell clones in human immunodeficiency virus infection.
A large panel of CD8+ T cell clones generated from peripheral blood lymphocytes (PBL) of healthy donors or human immunodeficiency virus (HIV)-infected individuals were assessed for both cytokine secretion profile and CD30 expression and release. The great majority of CD8+ T cell clones generated from healthy individuals showed the ability to produce interferon gamma (IFN-gamma), but not interleukin 4 (IL-4), and none of them either expressed membrane CD30 or released substantial amounts of soluble CD30 (sCD30) in their supernatant. In contrast, high numbers of CD8+ T cell clones generated from HIV-infected individuals, which produced IL-4 (and IL-5) in addition to IFN-gamma or IL-4 (and IL-5) alone, expressed membrane CD30 and released detectable amounts of sCD30 in their supernatants. Indeed, CD30 expression appeared to be positively correlated with the ability of CD8+ T cell clones to produce IL-4 and IL-5 and inversely correlated with their ability to produce IFN-gamma, whereas no correlation between CD30 expression and production of IL-10 was observed. These data suggest that CD30 is a marker for CD8+ T cells that have switched to the production of type 2 helper cytokines.
Division of Clinical Immunology and Allergy, University of Florence, Italy.
R
R
Manetti
F
F
Annunziato
R
R
Biagiotti
M G
MG
Giudizi
M P
MP
Piccinni
L
L
Giannarini
S
S
Sampognaro
P
P
Parronchi
F
F
Vinante
G
G
Pizzolo
E
E
Maggi
S
S
Romagnani
D000163:Acquired Immunodeficiency Syndrome / Q000276:immunology; D015703:Antigens, CD / Q000096:biosynthesis; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology*; D002462:Cell Membrane / Q000276:immunology; D002999:Clone Cells; D016207:Cytokines / Q000096:biosynthesis*; D015658:HIV Infections / Q000276:immunology*; D018023:HIV Seronegativity / Q000276:immunology; D006679:HIV Seropositivity / Q000276:immunology*; D015497:HIV-1 / Q000276:immunology; D006801:Humans; D016130:Immunophenotyping; D017730:Ki-1 Antigen / Q000096:biosynthesis*; D012016:Reference Values; D016176:T-Lymphocyte Subsets / Q000276:immunology*; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*
D015703:Antigens, CD; D016207:Cytokines; D017730:Ki-1 Antigen