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Science. 2000 Dec 15;290(5499):2152-4.

Development of CD8alpha-positive dendritic cells from a common myeloid progenitor.

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  • 1Department of Pathology, Stanford University, Stanford, CA 94305, USA.

Abstract

Dendritic cells (DCs) are critical in both initiating adaptive immune responses and maintaining tolerance to self antigens. These apparently contradictory roles have been suggested to depend on different subsets of DCs that arise from either myeloid or lymphoid hematopoietic origins, respectively. Although DC expression of CD8alpha is attributed to a lymphoid origin, here we show that both CD8alpha+ and CD8alpha- DCs can arise from clonogenic common myeloid progenitors in both thymus and spleen. Thus, expression of CD8alpha is not indicative of a lymphoid origin, and phenotypic and functional differences among DC subsets are likely to reflect maturation status rather than ontogeny.

PMID:
11118150
[PubMed - indexed for MEDLINE]
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