Polarized monocyte response to cytokine stimulation.

Dirk Nagorsen, Sara Deola, Kina Smith, Ena Wang, Vladia Monsurro, Paola Zanovello, Francesco M. Marincola, Monica C. Panelli

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

BACKGROUND: Mononuclear phagocytes (MPs) stand at the crossroads between the induction of acute inflammation to recruit and activate immune effector cells and the downmodulation of the inflammatory process to contain collateral damage. This decision is extensively modulated by the cytokine microenvironment, which includes a broad array of cytokines whose direct effect on MPs remains largely unexplored. Therefore, we tested whether polarized responses of MPs to pathogens are related to the influence of selected cytokines or represent a mandatory molecular switch through which most cytokines operate. RESULTS: Circulating CD14+ MPs were exposed to bacterial lipopolysaccharide (LPS) followed by exposure to an array of cytokines, chemokines and soluble factors involved in the immune response. Gene expression was studied by global transcript analysis. Two main classes of cytokines were identified that induced a classical or an alternative pathway of MP activation. Expression of genes affected by NFkappaB activation was most predictive of the two main classes, suggesting that this pathway is a fundamental target of cytokine regulation. As LPS itself induces a classical type of activation, the most dramatic modulation was observed toward the alternative pathway, suggesting that a broad array of cytokines may counteract the pro-inflammatory effects of bacterial components. CONCLUSIONS: This analysis is directly informative of the primary effect of individual cytokines on the early stages of LPS stimulation and, therefore, may be most informative of the way MP maturation may be polarized at the early stages of the immune response.

Original languageEnglish
JournalGenome Biology
Volume6
Issue number2
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

monocytes
Monocytes
cytokines
phagocytes
Phagocytes
Cytokines
immune response
lipopolysaccharides
gene expression
Lipopolysaccharides
maturation
pathogen
damage
gene
Gene Expression
effect
chemokines
Chemokines
analysis
inflammation

ASJC Scopus subject areas

  • Genetics

Cite this

Nagorsen, D., Deola, S., Smith, K., Wang, E., Monsurro, V., Zanovello, P., ... Panelli, M. C. (2005). Polarized monocyte response to cytokine stimulation. Genome Biology, 6(2).

Polarized monocyte response to cytokine stimulation. / Nagorsen, Dirk; Deola, Sara; Smith, Kina; Wang, Ena; Monsurro, Vladia; Zanovello, Paola; Marincola, Francesco M.; Panelli, Monica C.

In: Genome Biology, Vol. 6, No. 2, 2005.

Research output: Contribution to journalArticle

Nagorsen, D, Deola, S, Smith, K, Wang, E, Monsurro, V, Zanovello, P, Marincola, FM & Panelli, MC 2005, 'Polarized monocyte response to cytokine stimulation.', Genome Biology, vol. 6, no. 2.
Nagorsen D, Deola S, Smith K, Wang E, Monsurro V, Zanovello P et al. Polarized monocyte response to cytokine stimulation. Genome Biology. 2005;6(2).
Nagorsen, Dirk ; Deola, Sara ; Smith, Kina ; Wang, Ena ; Monsurro, Vladia ; Zanovello, Paola ; Marincola, Francesco M. ; Panelli, Monica C. / Polarized monocyte response to cytokine stimulation. In: Genome Biology. 2005 ; Vol. 6, No. 2.
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