期刊
CELL REPORTS
卷 29, 期 11, 页码 3736-+出版社
CELL PRESS
DOI: 10.1016/j.celrep.2019.11.042
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类别
资金
- NSF GRFP fellowship [DGE-1147470]
- Stanford Medicine Dean's Office fellowship
- NIH [AI072571, AI128949, AI100853, CA232666, DP2AR069953]
- Baxter and Freidenrich Foundation
- Katharine McCormick fellowship
- [S10RR025518]
- [S10OD016318]
Plasmacytoid dendritic cells (pDCs) are sensor cells with diverse immune functions, from type I interferon (IFN-I) production to antigen presentation, T cell activation, and tolerance. Regulation of these functions remains poorly understood but could be mediated by functionally specialized pDC subpopulations. We address pDC diversity using a high-dimensional single-cell approach: mass cytometry (CyTOF). Our analysis uncovers a murine pDC-like population that specializes in antigen presentation with limited capacity for IFN-I production. Using a multifaceted cross-species comparison, we show that this pDC-like population is the definitive murine equivalent of the recently described human AXL(+) DCs, which we unify under the name transitional DCs (tDCs) given their continuum of pDC and cDC2 characteristics. tDCs share developmental traits with pDCs, as well as recruitment dynamics during viral infection. Altogether, we provide a framework for deciphering the function of pDCs and tDCs during diseases, which has the potential to open new avenues for therapeutic design.
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