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Transcriptional reprogramming of dendritic cells by differentiation stimuli

Immature and mature dendritic cells (DC) have been well characterized functionally and phenotypically. Microorganisms or bacterial products such as lipopolysaccharide (LPS) and inflammatory molecules, including tumor necrosis factor (TNF‐α), are both believed to activate the DC maturation program wh...

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Bibliographic Details
Published in:European journal of immunology 2001-09, Vol.31 (9), p.2539-2546
Main Authors: Granucci, Francesca, Vizzardelli, Caterina, Virzi, Ettore, Rescigno, Maria, Ricciardi‐Castagnoli, Paola
Format: Article
Language:English
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Summary:Immature and mature dendritic cells (DC) have been well characterized functionally and phenotypically. Microorganisms or bacterial products such as lipopolysaccharide (LPS) and inflammatory molecules, including tumor necrosis factor (TNF‐α), are both believed to activate the DC maturation program which allows DC to initiate and amplify innate and adaptive immune responses. However, there is increasing evidence that the functional state of DC, induced by different stimuli, may be relevant for the immune response outcome. Thus, we compared the transcriptional program of mature, transitional and immature DC, after either LPS or TNF‐α stimulation. GeneChip® oligonucleotide microarrays, representing approximately 6,500 murine genes and ESTs, were used for this analysis. A very diverse modulation of gene expression was observed with the two stimuli. Only LPS‐treated cells showed a pattern of expression of genes compatible with a definitive growth arrest and with a suitable activation and control of the immune response.
ISSN:0014-2980
1521-4141
DOI:10.1002/1521-4141(200109)31:9<2539::AID-IMMU2539>3.0.CO;2-9