Journal
JOURNAL OF IMMUNOLOGY
Volume 197, Issue 12, Pages 4791-4806Publisher
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.1600672
Keywords
-
Categories
Funding
- Swiss National Science Foundation [310030_141045]
- European Union Horizon 2020 Program for research, technological development and demonstration [633184]
- H2020 Societal Challenges Programme [633184] Funding Source: H2020 Societal Challenges Programme
- Swiss National Science Foundation (SNF) [310030_141045] Funding Source: Swiss National Science Foundation (SNF)
Ask authors/readers for more resources
Porcine dendritic cells (DCs) are relatively well characterized, but a clear-cut identification of all DC subsets combined with full transcriptional profiling was lacking, preventing an unbiased insight into the functional specializations of DC subsets. Using a large panel of Abs in multicolor flow cytometry, cell sorting, and RNA sequencing we identified and characterized the porcine equivalent of conventional DCs (cDC) 1 and cDC2 as well as plasmacytoid DCs (pDCs) in the peripheral blood of pigs. We demonstrate that cDC1 are CD135(+)CD14(-)CD172a(low) CADM1(+)wCD11R1(+) cells, cDC2 are CD135(+)CD14(-)CD172a(+)CADM1(+)CD115(+)wCD11R1(+)CD1(+) cells and pDCs are CD4(+)CD135(+)CD172a(+)CD123(+)CD303(+) cells. As described in other species, only cDC1 express BATF3 and XCR1, cDC2 express FCER1A and FCGR2B, and only pDCs express TCF4 and NRP1. Nevertheless, despite these cross-species conserved subset-specific transcripts, porcine pDCs differed from the species described so far in many expressed genes and transcriptomic profiling clustered pDCs more distantly from cDCs than monocytes. The response of porcine DC subsets to TLR ligands revealed that pDCs are by far the most important source of TNF-alpha, IL-12p40, and of course IFN-alpha, whereas cDCs are most efficient in MHC and costimulatory molecule expression. Nevertheless, upregulation of CD40 and CD86 in cDCs was critically influenced or even dependent on the presence of pDCs, particularly for TLR 7 and 9 ligands. Our data demonstrate that extrapolation of data on DC biology from one species to another has to be done with care, and it shows how functional details have evolved differentially in different species.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available