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Ca2+ signaling through ryanodine receptor 1 enhances maturation and activation of human dendritic cells

Bracci, L. and Vukcevic, M. and Spagnoli, G. and Ducreux, S. and Zorzato, F. and Treves, S.. (2007) Ca2+ signaling through ryanodine receptor 1 enhances maturation and activation of human dendritic cells. Journal of Cell Science, 120 (13). pp. 2232-2240.

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Official URL: http://edoc.unibas.ch/dok/A6174326

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Abstract

Increases in intracellular Ca2+ concentration accompany many physiological events, including maturation of dendritic cells, professional antigen-presenting cells characterized by their ability to migrate to secondary lymphoid organs where they initiate primary immune responses. The mechanism and molecules involved in the early steps of Ca2+ release in dendritic cells have not yet been defined. Here we show that the concomitant activation of ryanodine receptor-induced Ca2+ release together with the activation of Toll-like receptors by suboptimal concentrations of microbial stimuli provide synergistic signals, resulting in dendritic cell maturation and stimulation of T cell functions. Furthermore, our results show that the initial intracellular signaling cascade activated by ryanodine receptors is different from that induced by activation of Toll-like receptors. We propose that under physiological conditions, especially when low suboptimal amounts of Toll-like receptor ligands are present, ryanodine receptor-mediated events cooperate in bringing about dendritic cell maturation.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Querschnittsbereich Forschung
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Querschnittsbereich Forschung
03 Faculty of Medicine > Bereich Querschnittsfächer (Klinik) > Anästhesiologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Querschnittsfächer (Klinik) > Anästhesiologie
03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel
03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel > Perioperative Patient Safety (Girard/Treves)
UniBasel Contributors:Spagnoli, Giulio C. and Treves, Susan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Company of Biologists
ISSN:0021-9533
e-ISSN:1477-9137
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:11 May 2017 14:55
Deposited On:25 Oct 2013 08:33

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