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Murine GMP- and MDP-derived classical monocytes have distinct functions and fates.

ABSTRACT: Murine GMP- and MDP-derived classical monocytes have distinct functions and fates.

PROVIDER: PRJNA1091593 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR28244791_1.fastq.gz	Fastqsanger.gz
	SRR28244791_2.fastq.gz	Fastqsanger.gz
	SRR28244792_1.fastq.gz	Fastqsanger.gz
	SRR28244792_2.fastq.gz	Fastqsanger.gz
	SRR28345749.fastq.gz	Fastqsanger.gz

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Murine GMP- and MDP-derived classical monocytes have distinct functions and fates [dataset 1]

Project description:Monocytes are ephemeral myeloid immune cells that arise from adult hematopoiesis and circulate in the blood. They comprise two main subsets, in mice defined as classical and non-classical monocytes (CM, NCM). Recent fate mapping and transcriptomic analyses revealed that CM themselves are heterogeneous. Here, we report surface markers that allow segregation of murine GMP- and MDP-derived CM, as well as their functional characterization, including fate definition following adoptive cell transfer. GMP-Mo and MDP- Mo gave equal rise to homeostatic CM progeny, such as blood NCM and gut macrophages; the cells however differentially seeded selected other tissues, including the dura mater and lung. Specifically, GMP-Mo and MDP-Mo gave rise to distinct interstitial lung macrophages, linking CM dichotomy to previously reported pulmonary macrophage heterogeneity. Collectively, we provide evidence for the existence of two functionally distinct CM subsets in the mouse, which differentially contribute to peripheral tissue macrophage populations in homeostasis and following challenge.

2024-05-04 | GSE261003 | GEO

Murine GMP- and MDP-derived classical monocytes have distinct functions and fates [dataset 2]

Project description:Monocytes are short-lived myeloid immune cells that arise from adult hematopoiesis and circulate for a short time in the blood. They comprise two main subsets, in mice defined as classical Ly6Chigh and non-classical Ly6Clow monocytes (CM, NCM). Recent fate mapping and transcriptomic analyses revealed that CM themselves are heterogeneous. Here, we report surface markers that allow segregation of murine GMP- and MDP-derived CM in the BM and blood. Functional characterization, including fate definition following adoptive cell transfer, established that GMP-Mo and MDP-Mo could equal rise to homeostatic CM progeny, such as NCM in blood and gut macrophages, but differentially seeded selected other tissues. Specifically, GMP-Mo and MDP-Mo gave rise to distinct interstitial lung macrophages, thus linking CM dichotomy to previously reported pulmonary macrophage heterogeneity. Collectively, we provide comprehensive evidence for the existence of two functionally distinct CM subsets in the mouse, which differentially contribute to peripheral tissue macrophage populations in homeostasis and following challenge. Our findings are indicative of impact of monocyte ontogeny on in situ differentiation.

2024-05-04 | GSE261594 | GEO

Murine GMP- and MDP-derived classical monocytes have distinct functions and fates [dataset 1]

Project description:Murine GMP- and MDP-derived classical monocytes have distinct functions and fates [dataset 1]

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Murine GMP- and MDP-derived classical monocytes have distinct functions and fates [dataset 2]

Project description:Murine GMP- and MDP-derived classical monocytes have distinct functions and fates [dataset 2]

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Murine GMP- and MDP-derived classical monocytes have distinct functions and fates.

Project description:This SuperSeries is composed of the SubSeries listed below.

2024-05-04 | GSE262369 | GEO

Expression data of GMP and MDP from wild-type and Trib1-/- mice

Project description:Trib1 is critical for some myeloid cell differentiation. Therefore we used microarrays to investigate gene expression profiles in wild-type and Trib1-/- progenitor of myeloid cells. Progenitor cells, such as GMP and MDP, obtained from wild-type and Trib1-/- mice were sorted, followed by RNA extraction. Then hybridization on affymetrix microarrays was performed.

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Project description:Granulocyte-monocyte progenitors (GMPs) and monocyte-dendritic cell progenitors (MDPs) produce monocytes during homeostasis and in response to increased demand during infection. Both progenitor populations are thought to derive from common myeloid progenitors (CMPs), and a hierarchical relationship (CMP-GMP-MDP-monocyte) is presumed to underlie monocyte differentiation. Here, however, we demonstrate that mouse MDPs arose from CMPs independently of GMPs, and that GMPs and MDPs produced monocytes via similar, but distinct, monocyte-committed progenitors. GMPs and MDPs yielded classical (Ly6Chi) monocytes with gene expression signatures that were defined by their origins and impacted their function. GMPs produced a subset of “neutrophil-like” monocytes, whereas MDPs gave rise to a subset of monocytes that yielded monocyte-derived dendritic cells. GMPs and MDPs were also independently mobilized to produce specific combinations of myeloid cell types following the injection of microbial components. Thus, the balance of GMP and MDP differentiation shapes the myeloid cell repertoire during homeostasis and following infection.

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Project description:Monocytes are a critical component of the cellular innate immune system, and can be subdivided into classical, intermediate and non-classical subsets on the basis of surface CD14 and CD16 expression. Classical monocytes play the canonical role of phagocytosis, and account for the majority of circulating cells. Intermediate and non-classical cells are known to exhibit varying levels of phagocytosis and cytokine secretion, and are differentially expanded in certain pathological states. Characterisation of cell surface proteins expressed by each subset is informative not only to improve understanding of phenotype, but also to provide biological insight into function. Here we use highly multiplexed Tandem-Mass-Tag (TMT)-based mass spectrometry with selective cell surface biotinylation to characterise the classical monocyte surface proteome, then interrogate the phenotypic differences between each monocyte subset to identify novel protein markers.

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The chromatin structures of GMP-MoPs are shifted toward ones that favors an aberrant differentiation pathway generating GMP-MoPs from proNeu1 [ATAC-seq]

Project description:To assess the chromatin structure of GMP-MoPs, we performed assay for transposase-accessible chromatin sequencing (ATAC-seq) analysis of MDP, cMoP, GMP, proNeu1, proNeu2, and GMP-MoP of mouse BM. The PCA of ATAC-seq positioned GMP-MoPs between proNeu1 and cMoPs.

2023-03-13 | GSE224100 | GEO

RNA-seq of mouse myeloid progenitors reveals two independent pathways for monocyte production via GMPs and MDPs

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