Long-lived immature dendritic cells mediated by TRANCE-RANK interaction

I Cremer, M Dieu-Nosjean, S Marechal, C Dezutter-Dambuyant, Sarah Goddard, David Adams, N Winter, C Menetrier-Caux, C Sautes-Fridman, CGF Mueller

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Immature dendritic cells (DCs) reside in interstitial tissues (int-DC) or in the epidermis, where they capture antigen and, thereafter, mature and migrate to draining lymph nodes (LNs), where they present processed antigen to T cells. We have identified int-DCs that express both TRANCE (tumor necrosis factor-related activation-induced cytokine) and RANK (receptor activator of NF-kappaB) and have generated these cells from CD34(+) human progenitor cells using macrophage colony-stimulating factor (M-CSF). These CD34(+)-derived int-DCs, which are related to macrophages, are long-lived, but addition of soluble RANK leads to significant reduction of cell viability and Bcl-2 expression. This suggests that constitutive TRANCE-RANK interaction is responsible for CD34(+)-derived int-DC longevity. Conversely, CD1a(+) DCs express only RANK and are short-lived. However, they can be rescued from cell death either by recombinant soluble TRANCE or by CD34(+)-derived int-DCs. CD34(+)-derived int-DCs mature in response to lipopolysaccharide (LPS) plus CD40 ligand (L) and become capable of CCL21/CCL19-mediated chemotaxis and naive T-cell activation. Upon maturation, they lose TRANCE, making them, like CD1a(+) DCs, dependent on exogenous TRANCE for survival. These findings provide evidence that TRANCE and RANK play important roles in the homeostasis of DCs.
Original languageEnglish
Pages (from-to)3646-55
Number of pages10
JournalBlood
Volume100
Issue number10
Early online date5 Jul 2002
DOIs
Publication statusPublished - 15 Nov 2002

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