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Schlitzer, A.* ; Heiseke, A.F.* ; Einwächter, H.* ; Reindl, W.* ; Schiemann, M. ; Manta, C.P.* ; See, P.* ; Niess, J.H.* ; Suter, T.* ; Ginhoux, F.* ; Krug, A.B.*

Tissue-specific differentiation of a circulating CCR9- pDC-like common dendritic cell precursor.

Blood 119, 6063-6071 (2012)
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The ontogenic relationship between the common dendritic cell (DC) progenitor (CDP), the committed conventional DC precursor (pre-cDC), and cDC subpopulations in lymphoid and nonlymphoid tissues has been largely unraveled. In contrast, the sequential steps of plasmacytoid DC (pDC) development are less defined, and it is unknown at which developmental stage and location final commitment to the pDC lineage occurs. Here we show that CCR9(-) pDCs from murine BM which enter the circulation and peripheral tissues have a common DC precursor function in vivo in the steady state, in contrast to CCR9(-) pDCs which are terminally differentiated. On adoptive transfer, the fate of CCR9(-) pDC-like precursors is governed by the tissues they enter. In the BM and liver, most transferred CCR9(-) pDC-like precursors differentiate into CCR9(-) pDCs, whereas in peripheral lymphoid organs, lung, and intestine, they additionally give rise to cDCs. CCR9(-) pDC-like precursors which are distinct from pre-cDCs can be generated from the CDP. Thus, CCR9(-) pDC-like cells are novel CDP-derived circulating DC precursors with pDC and cDC potential. Their final differentiation into functionally distinct pDCs and cDCs depends on tissue-specific factors allowing adaptation to local requirements under homeostatic conditions. (Blood. 2012; 119(25): 6063-6071)
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter COLONY-STIMULATING FACTOR; TRANSCRIPTION FACTOR E2-2; IN-VIVO; ANTIGEN-PRESENTATION; BONE-MARROW; SIGLEC-H; MOUSE; AUTOIMMUNITY; FLT3-LIGAND; HOMEOSTASIS
Sprache englisch
Veröffentlichungsjahr 2012
HGF-Berichtsjahr 2012
ISSN (print) / ISBN 0006-4971
e-ISSN 1528-0020
Zeitschrift Blood
Quellenangaben Band: 119, Heft: 25, Seiten: 6063-6071 Artikelnummer: , Supplement: ,
Verlag American Society of Hematology
Begutachtungsstatus Peer reviewed
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er) Immune Response and Infection
PSP-Element(e) G-520100-001
PubMed ID 22547585
Erfassungsdatum 2012-09-06