Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Multi-step Epigenetic Programming of Monocytes during Infection

ABSTRACT: Monocytes play a major role in the defense against pathogens. They are rapidly mobilized to inflamed sites where they exert both proinflammatory and regulatory effector functions. It is still poorly understood how this dynamic and exceptionally plastic system is controlled at the molecular level. Herein, we evaluated the differentiation process that occurs in Ly6Chi monocytes during oral infection by T. gondii. Flow cytometry and single-cell analysis revealed distinct activation status and gene expression profiles in the bone marrow, the spleen and the lamina propria of infected mice. We provide further evidence that this stepwise acquisition of effector functions, such as the capacity to produce interleukin-27, is accompanied by distinct waves of epigenetic programming, highlighting a role for STAT1/IRF1 in the bone marrow and AP-1/NF-kB in the periphery. This work broadens our understanding of the molecular events that occur in vivo during monocyte differentiation in response to inflammatory cues.

ORGANISM(S): Mus musculus

PROVIDER: GSE129724 | GEO | 2019/12/31

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Genome-wide analysis of tissue-specific gene expression by Ly6Chi inflammatory monocytes during Toxoplasma gondii infection

Project description:Analysis of Ly6Chi monocytes from small intestine lamina propria (SILP) and blood of day 8 Toxoplasma gondii infected mice at gene expression level. The hypothesis tested in the present study was that Ly6Chi monocytes from SILP have altered expression of regulatory factors to blood monocytes. Results provide important information on the regulatory to effector balance of genes expressed by Ly6Chi monocytes during an acute inflammatory response. Ly6Chi inflammatory monocytes were sorted by FACS from the blood or small intestine lamina propria (SILP) of Toxoplasma gondii infected C57BL/6 mice. Cells were isolated at day 8 after infection and total RNA obtained from sorted populations. Three biological replicates were acquired for both blood and SILP from pooled animals.

2013-05-25 | E-GEOD-46685 | biostudies-arrayexpress

Genome-wide analysis of tissue-specific gene expression by Ly6Chi inflammatory monocytes during Toxoplasma gondii infection

2013-05-25 | GSE46685 | GEO

RNAseq transcriptome analysis reveals developmental heterogeneity among mouse bone marrow monocyte subsets

Project description:Purpose: In our study, we identified a heterogeneity among bone marrow (BM) Ly6Chi monocytes, which can be subdivided the expression of CXCR4. In order to understand the development of BM monocytes, the goal of this experiment is to compare the transcriptome of these 2 BM Ly6Chi monocyte subsets to those of the common monocyte progenitor (cMoP) and Ly6Clo monocytes.

2016-09-29 | GSE86079 | GEO

Dendritic cell and monocyte progenitors

Project description:To compare the gene expression profiles of Macrophage & Dendritic cell Progenitors (MDPs), Common Dendritic cell Progenitors (CDPs), committed dendritic cell precursors (pre-DCs), and Ly6Chi monocytes from mouse bone marrow Four samples (MDPs, CDPs, pre-DCs, and monocytes) were collected in triplicate

2012-04-25 | E-GEOD-37566 | biostudies-arrayexpress

Dendritic cell and monocyte progenitors

2012-04-26 | GSE37566 | GEO

Global genome expression analysis of lamina propria derived WT and Nlrp6-/- Ly6C-hi inflammatory monocytes

Project description:Nlrp6-/- lamina propria Ly6C-hi monocytes in response to AOM/DSS have deficient TNFÎ± production, but increased production of other pro-inflammatory cytokines as compared to WT NLRP6 is a member of the Nod-like receptor family, whose members are involved in the recognition of microbes and/or tissue injury. NLRP6 was previously demonstrated to regulate the production of IL-18 and is important for protecting mice against chemically-induced intestinal injury and colitis-associated colon cancer. However, the cellular mechanisms by which NLRP6 reduces susceptibility to colonic inflammation remain unclear. Here, we determined that NLRP6 expression is specifically upregulated in Ly6Chi inflammatory monocytes that infiltrate into the colon during dextran sulfate sodium (DSS)-induced inflammation. Adoptive transfer of WT Ly6Chi inflammatory monocytes into Nlrp6-/- mice was sufficient to protect them from mortality, significantly reducing intestinal permeability and damage. NLRP6-deficient inflammatory monocytes were specifically defective in TNFÎ± production, which was important for reducing DSS-induced mortality and dependent on autocrine IL-18 signaling by inflammatory monocytes. Our data reveal a previously unappreciated role for NLRP6 in inflammatory monocytes, which are recruited during intestinal injury to promote barrier function and limit bacteria-driven inflammation. This study also highlights the importance of early cytokine responses, particularly NLRP6-dependent and IL-18-dependent TNFÎ± production in preventing chronic dysregulated inflammation. Ly6Chi monocytes were sorted from lamina propria of WT or Nlrp6-/- mice at day 10 of AOM/2%DSS. RNA was extracted and hybridized to the mouse 2.1 ST array.

2016-03-27 | E-GEOD-79631 | biostudies-arrayexpress

COMMD10-deficiency promotes 'neutrophil like' differentiation fate of bone marrow Ly6Chi monocytes

Project description:Monocytes are circulating myeloid immune precursor cells that are generated in the bone marrow (BM). Upon their release into the circulation, monocytes are recruited to inflammatory sites, where they differentiate into monocyte-derived effector cells. In absence of overt inflammation, monocytes also extravasate into selected tissues, where they complement tissue-resident macrophage compartments. Recent studies have uncovered binary developmental trajectories of monocytes in the BM with Neutrophil-like (NeuMo) and dendritic cell (DC)-like (DCMo) monocytes differentiating downstream of granulocyte-macrophage progenitors (GMP) and macrophage-dendritic cell progenitors (MDP), respectively (Weinreb et al., 2020; Yanez et al., 2017). Yet, the molecular cues that dictate BM monocyte differentiation remain incompletely understood. The COMMD (copper metabolism MURR1 domain) family includes 10 evolutionarily conserved proteins. Functions of COMMD proteins are still being defined, but they seem to play non-redundant roles in regulating transcription and protein trafficking. Utilizing conditional COMMD10 knockout mice we uncovered a role for COMMD10 in limiting inflammasome activation in Ly6Chi monocytes during experimental sepsis and colitis (Mouhadeb et al., 2018), and in supporting phagolysosomal biogenesis and maturation in KCs and BM-derived macrophages infected with Staphylococcus aureus (Ben Shlomo et al., 2019). Hence, these studies mark COMMD10 as a candidate mediator of monocyte and macrophage fate and immune responses. Here we studied the effect of COMMD10-deficiency on Ly6Chi monocyte differentiation. We show that COMMD10-deficiency in steady state Ly6Chi monocytes promotes a differentiation bias towards NeuMo fate.

2021-10-05 | GSE183495 | GEO

COMMD10-deficiency promotes 'neutrophil like' differentiation fate of bone marrow Ly6Chi monocytes

Project description:COMMD10-deficiency promotes 'neutrophil like' differentiation fate of bone marrow Ly6Chi monocytes

| PRJNA761081 | ENA

Inflammation switches the differentiation program of Ly6Chi monocytes from anti-inflammatory macrophages to inflammatory dendritic cells in the colon

Project description:Dendritic cells (DCs) and macrophages (MPs) are important for immunological homeostasis in the colon. We found that F4/80hi CX3CR1hi (CD11b+CD103-) cells account for 80% of mouse colonic lamina propria (cLP) MHC-IIhi cells. Both CD11c+ and CD11c- cells within this population were identified as MPs based on multiple criteria, including a MP transcriptome revealed by microarray analysis. These MPs constitutively released high levels of IL-10 at least partially in response to the microbiota via an MyD88-independent mechanism. In contrast, cells expressing low to intermediate levels of F4/80 and CX3CR1 were identified as DCs, based on phenotypic and functional analysis and comprise three separate CD11chi cell populations: CD103+CX3CR1-CD11b- DCs, CD103+CX3CR1-CD11b+ DCs and CD103-CX3CR1intCD11b+ DCs. In non-inflammatory conditions, Ly6Chi monocytes differentiated primarily into CD11c+, but not CD11c- MPs. In contrast, during colitis, Ly6Chi monocytes massively invaded the colon and differentiated into pro-inflammatory CD103-CX3CR1intCD11b+ DCs, which produced high levels of IL-12, IL-23, iNOS and TNF. These findings demonstrate the dual capacity of Ly6Chi blood monocytes to differentiate into either regulatory MPs or inflammatory DCs in the colon, and that the balance of these immunologically antagonistic cell types is dictated by microenvironmental conditions. FACS sorted expression from normal controls

2011-12-21 | E-GEOD-27859 | biostudies-arrayexpress

Phenotyping of BM TpMos and Mature Ly6Chi monocytes in steady state and during sepsis

Project description:Circulating monocytes are crucial for tissue resident macrophage (TRM) replenishment. While a temporary loss of TRMs does not impose immediate danger to the host in sterile conditions, the niche comprising of dying macrophages in the presence of pathogenic bacteria predisposes the host to increased morbidity if these cells are not effectively replaced. Importantly, monocytes have been shown to be susceptible to cell death after executing effector functions such as phagocytosis. Hence, the demands and contribution of monocytes in pathogen clearance and macrophage differentiation is perplexing. Interestingly, we show that proliferating transitional pre-monocytes (TpMos), an immediate precursor of mature Ly6Chi monocytes (MatMos), were mobilized into the periphery in response to acute bacterial infection and sepsis. Since TpMos are absent in the circulation in the steady state, we aim to understand how TpMo recruitment into the periphery may result in differing functions from MatMos during sepsis.

2022-03-09 | GSE192448 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data