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Interleukin-1β triggers the differentiation of macrophages with enhanced capacity to present mycobacterial antigen to T cells
Authors
M Schenk
M Fabri
+7 more
SR Krutzik
DJ Lee
DM Vu
PA Sieling
D Montoya
PT Liu
RL Modlin
Publication date
1 January 2013
Publisher
eScholarship, University of California
Doi
Cite
Abstract
The rapid differentiation of monocytes into macrophages (MΦ) and dendritic cells is a pivotal aspect of the innate immune response. Differentiation is triggered following recognition of microbial ligands that activate pattern recognition receptors or directly by pro-inflammatory cytokines. We demonstrate that interleukin-1β (IL-1β) induces the rapid differentiation of monocytes into CD209 + MΦ, similar to activation via Toll-like receptor 2/1, but with distinct phenotypic and functional characteristics. The IL-1β induced MΦ express higher levels of key markers of phagocytosis, including the Fc-receptors CD16 and CD64, as well as CD36, CD163 and CD206. In addition, IL-1β-induced MΦ exert potent phagocytic activity towards inert particles, oxidized low-density lipoprotein and mycobacteria. Furthermore, IL-1β-induced MΦ express higher levels of HLA-DR and effectively present mycobacterial antigens to T cells. Therefore, the ability of IL-1β to induce monocyte differentiation into MΦ with both phagocytosis and antigen-presenting function is a distinct part of the innate immune response in host defence against microbial infection. © 2013 John Wiley & Sons Ltd
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info:doi/10.1111%2Fimm.12167
Last time updated on 05/06/2019
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
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oai:collections.lib.uwm.edu:ag...
Last time updated on 29/10/2019