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Novel function for interleukin-7 in dendritic cell development

Vogt, Tobias K. and Link, Alexander and Perrin, John and Finke, Daniela and Luther, Sanjiv A.. (2009) Novel function for interleukin-7 in dendritic cell development. Blood : the journal of the American Society of Hematology, Vol. 113. pp. 3961-3968.

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Official URL: http://edoc.unibas.ch/dok/A6006235

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Abstract

Interleukin-7 (IL-7) is crucial for the development of T and B lymphocytes from common lymphoid progenitors (CLPs) and for the maintenance of mature T lymphocytes. Its in vivo role for dendritic cells (DCs) has been poorly defined. Here, we investigated whether IL-7 is important for the development or maintenance of different DC types. Bone marrow-derived DCs expressed the IL-7 receptor (IL-7R) and survived significantly longer in the presence of IL-7. Migratory DCs (migDCs) isolated from lymph nodes also expressed IL-7R. Surprisingly, IL-7R was not required for their maintenance but indirectly for their development. Conventional DCs (cDCs) and plasmacytoid DCs (pDCs) resident in lymph nodes and spleen were IL-7R(-). Using mixed bone marrow chimeras, we observed an intrinsic requirement for IL-7R signals in their development. As the number of CLPs but not myeloid progenitors was reduced in the absence of IL-7 signals, we propose that a large fraction of cDCs and pDCs derives from CLPs and shares not only the lymphoid origin but also the IL-7 requirement with lymphocyte precursors.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Children's Hospital > Developmental Immunology (Finke)
UniBasel Contributors:Finke, Daniela
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:HighWire Press
ISSN:1528-0020
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:01 Feb 2013 08:46
Deposited On:01 Feb 2013 08:45

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