Transcriptional reprogramming of dendritic cells by differentiation stimuli

Francesca Granucci, Caterina Vizzardelli, Ettore Virzi, Maria Rescigno, Paola Ricciardi-Castagnoli

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)2539-2546
Number of pages8
JournalEuropean Journal of Immunology
Volume31
Issue number9
DOIs
Publication statusPublished - 2001

Keywords

  • Dendritic cell
  • Inflammatory stimulus
  • Microarray
  • Transcription analysis

ASJC Scopus subject areas

  • Immunology

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