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Different developmental pathways generate functionally distinct populations of natural killer cells

ABSTRACT: Different developmental pathways generate functionally distinct populations of natural killer cells

PROVIDER: PRJNA1105892 | ENA |

REPOSITORIES: ENA

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	SRR28830496.fastq.gz	Fastqsanger.gz
	SRR28830497.fastq.gz	Fastqsanger.gz

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Different developmental pathways generate functionally distinct populations of natural killer cells

Project description:Natural killer (NK) cells function by eliminating virus-infected cells or tumor cells. Here, we identified a NK lineage-biased progenitor population, termed early NK progenitors (ENKP), which developed into NK cells independently of common precursors for ILCs (ILCPs). ENKP-derived NK cells (ENKP_ NK cells) and ILCP-derived NK cells (ILCP_ NK cells) were also transcriptionally different. We devised combinations of surface markers that identified highly enriched ENKP_NK and ILCP_NK cell populations in wild-type mice. Furthermore, Ly49H+ NK cells that responded to mouse cytomegalovirus (MCMV) infection primarily developed from ENKPs whereas ILCP_NK cells were better IFN-g producers upon Salmonella and Herpes Simplex Virus (HSV) infections. Interestingly, human CD56dim and CD56bright NK cells were transcriptionally similar to ENKP_NK cells and ILCP_NK cells, respectively. Our findings establish the existence of two pathways of NK cell development that generate functionally distinct NK cell subsets in mice, and further suggest these pathways may be conserved in humans.

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