Plasmacytoid dendritic cells: key players in the initiation and regulation of immune responses.

Abstract:

:Plasmacytoid dendritic cells (pDCs) are a rare population of circulating cells that selectively express Toll-like receptors (TLR)7 and TLR9 and have the capacity to produce large amounts of type I interferons (IFNs) in response to viruses or host-derived nucleic acid-containing complexes. Through the production of type I IFNs, pDCs initiate protective immunity by activating classical DCs, T cells, natural killer cells, and B cells. Upon activation, pDCs also differentiate into mature DCs and may contribute to the contraction of T-cell responses. In this review, we describe how pDCs are key players in the initiation and regulation of immune responses and discuss their emerging role in the pathogenesis of human diseases.

journal_name

Ann N Y Acad Sci

authors

Lande R,Gilliet M

doi

10.1111/j.1749-6632.2009.05152.x

subject

Has Abstract

pub_date

2010-01-01 00:00:00

pages

89-103

eissn

0077-8923

issn

1749-6632

pii

NYAS5152

journal_volume

1183

pub_type

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