Inducible IL-2 production by dendritic cells revealed by global gene expression analysis.
Nat Immunol
; 2(9): 882-8, 2001 Sep.
Article
de En
| MEDLINE
| ID: mdl-11526406
ABSTRACT
Dendritic cells (DCs) are strong activators of primary T cell responses. Their priming ability is acquired upon encounter with maturation stimuli. To identify the genes that are differentially expressed upon maturation induced by exposure to Gram-negative bacteria, a kinetic study of DC gene expression was done with microarrays representing 11,000 genes and ESTs (expressed sequence tags). Approximately 3000 differentially expressed transcripts were identified. We found that functional interleukin 2 (IL-2) mRNA, which gave rise to IL-2 production, was transiently up-regulated at early time-points after bacterial encounter. In contrast, macrophages did not produce IL-2 upon bacterial stimulation. Thus, IL-2 is an additional key cytokine that confers unique T cell stimulatory capacity to DCs.
Recherche sur Google
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Cellules dendritiques
/
Activation des lymphocytes
/
Interleukine-2
Type d'étude:
Prognostic_studies
Limites:
Animals
Langue:
En
Journal:
Nat Immunol
Sujet du journal:
ALERGIA E IMUNOLOGIA
Année:
2001
Type de document:
Article
Pays d'affiliation:
Italie