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Plasmacytoid dendritic cells develop from Ly6D+ lymphoid progenitors distinct from the myeloid lineage

ABSTRACT: Plasmacytoid dendritic cells develop from Ly6D+ lymphoid progenitors distinct from the myeloid lineage

PROVIDER: PRJNA542142 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9035480_1.fastq.gz	Fastqsanger.gz
	SRR9035480_2.fastq.gz	Fastqsanger.gz
	SRR9035490_1.fastq.gz	Fastqsanger.gz
	SRR9035490_2.fastq.gz	Fastqsanger.gz
	SRR9035500_1.fastq.gz	Fastqsanger.gz

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Plasmacytoid dendritic cell precursors give rise to conventional dendritic cells via a Siglec-H+ Zbtb46+ Ly6D+ intermediary stage

Project description:Plasmacytoid and conventional dendritic cells (pDC, and cDC) are generated from distinct lymphoid and myeloid progenitor cells in murine bone marrow. Despite the early separation of pDC and cDC lineages, CD11c+ MHCII-/lo Siglec-H+ CCR9lo pDC-like precursor cells are able to differentiate into both pDC and cDC. Single-cell transcriptomics and high-dimensional flow cytometry combined with cell fate analysis revealed the heterogeneity and commitment of subsets in this compartment. While Ly6D– cells within this fraction were cDC-committed and B220hi Ly6Dhi Zbtb46– cells were immediate precursors of pDCs, B220lo Ly6Dhi Zbtb46– cells still had the potential to generate cDCs in addition to pDCs. Transition to cDCs occurred via an intermediary stage marked by coexpression of Siglec-H, Ly6D and Zbtb46. Type I IFN stimulation limited cDC and promoted pDC output from these precursors, demonstrating their plasticity in response to inflammation. Thus, flexibility to divert to cDCs is retained in the pDC lineage at later differentiation stages.

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