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Macrophage migration inhibitory factor is overproduced through EGR1 in TET2low resting monocytes

ABSTRACT: Macrophage migration inhibitory factor is overproduced through EGR1 in TET2low resting monocytes

PROVIDER: PRJNA779713 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16919623_1.fastq.gz	Fastqsanger.gz
	SRR16919623_2.fastq.gz	Fastqsanger.gz
	SRR16919624_1.fastq.gz	Fastqsanger.gz
	SRR16919624_2.fastq.gz	Fastqsanger.gz
	SRR16919625_1.fastq.gz	Fastqsanger.gz

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Macrophage migration inhibitory factor is overproduced through EGR1 in TET2low resting monocytes

Project description:Somatic mutation in TET2 gene is one of the most common clonal genetic events detected in age-related clonal hematopoiesis as well as in chronic myelomonocytic leukemia (CMML). In addition to being a pre-malignant state, TET2 mutated clones are associated with an increased risk of death from cardiovascular disease, which could involve cytokine/chemokine overproduction by monocytic cells. Here, we show in mice and in human cells that, in the absence of any inflammatory challenge, TET2 down-regulation promotes the production of MIF (macrophage migration inhibitory factor), a pivotal mediator of atherosclerotic lesion formation. In healthy monocytes, TET2 is recruited to MIF promoter and interacts with the transcription factor EGR1 and histone deacetylases. Disruption of these interactions as a consequence of TET2-decreased expression favors EGR1-driven transcription of MIF gene and its secretion. MIF favors monocytic differentiation of myeloid progenitors. These results designate MIF as a chronically overproduced chemokine and a potential therapeutic target in patients with clonal TET2 down-regulation in myeloid cells.

2021-11-13 | GSE188624 | GEO

ChIP-seq of EGR1 in human primary unstimulated monocytes and in unstimulated human monocytes from three CMML patients

Project description:Identification of EGR1 chromatin localization in human primary monocytes (2 donors), in human primary monocytes from 2 CMML patients with TET2 truncating mutations (high VAF) and in human primary monocytes from 1 CMML patients with TET2 truncating mutations with low VAF.

2021-11-15 | E-MTAB-11132 | biostudies-arrayexpress

ChIP-seq of CSF-1R, H3K4me1, H3K4me3 in human primary unstimulated monocytes and monocytes differentiated 72h with CSF-1 (3 healthy donors buffy coat) and in monocytes from two CMML patients and one healthy donor, EGR1 ChIP-seq in unstimulated monocytes (3 healthy donors buffy coat)

Project description:Identification of nuclear CSF-1R, H3K4me1 and H3K4me3 localization on chromatin in human primary monocytes and modification of this localization during monocyte differentiation into macrophage induced by 100ng/mL CSF-1 during 6 hours (1 donor) or 72h (3 donors). Identification of EGR1 chromatin localization in human primary monocytes (3 donors) Comparison of nuclear CSF-1R chromatin localization in monocytes from 1 healthy donor and 2 chronic myelomonocytic leukemia patients.

2019-03-04 | E-MTAB-6305 | biostudies-arrayexpress

ChIP-seq of CSF-1R in THP-1 cell lines deleted for EGR1 gene by CRISPR-Cas9 and ChIP-seq of CSF-1R in 2 CMML patients

Project description:CSF-1R is recruited on EGR1 motifs in monocytes where it colocalizes with EGR1. To address if EGR1 required for CSF-1R recruitment on chromatin, THP-1 monocytic cell line has been deleted for EGR1 by CRISPR-Cas9 approach. 3 clones were generated by single cell cloning and CSF-1R localization on chromatin was compared to two unmodified THP-1 clones by ChIP-sequencing. Since the read number was strongly decreased in the EGR1-deleted clones, the three clones were pooled for the comparison with wild-type clones. ChIPseq of CSF-1R (Nter Antibody) in monocytes of two CMML patients (CMML2130 and CMML2609)

2019-03-28 | E-MTAB-7756 | biostudies-arrayexpress

ChIP-seq of EGR1 in human primary unstimulated monocytes and in unstimulated human monocytes from three CMML patients

Project description:ChIP-seq of EGR1 in human primary unstimulated monocytes and in unstimulated human monocytes from three CMML patients

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Haptenation of Macrophage Migration Inhibitory Factor-Dataset 2

Project description:Firstly, the adductome of he protein macrophage migration inhibitory factor (MIF) with different haptens encompassing different reaction mechanisms and potencies was investigated. After incubation of MIF with the different haptens at 5 times molar excess of hapten, an untargeted Full MS/dd-MS2 experimental approach was used with a QExactive Quadrupole-Orbitrap mass spectrometer. The data were processed with Proteome Discoverer and the suggested sites of adductions were confirmed in parallel reaction monitoring mode (PRM) on the same instruments.

2022-03-18 | PXD031793 | Pride

Role of Macrophage migration inhibitory factor (MIF) in pancreatic stellate cells (PSCs)

Project description:The presence of activated pancreatic stellate cells (PSCs) in the pancreatic ductal adenocarcinoma (PDAC) microenvironment plays a significant role in cancer progression. Macrophage migration inhibitory factor (MIF) is overexpressed in PDAC tissues and expressed by both cancer and stromal cells. The expression status of MIF and its receptors in PDAC- associated fibroblasts or PSCs and its pathophysiological roles are yet to be elucidated. The next-generation sequencing technique was adapted to check the effect of MIF absence on the expression of other genes in mice (mPSCs).

2022-09-28 | E-MTAB-9392 | biostudies-arrayexpress

Role of Macrophage migration inhibitory factor (MIF) in pancreatic stellate cells (PSCs)

Project description:Role of Macrophage migration inhibitory factor (MIF) in pancreatic stellate cells (PSCs)

| PRJEB39522 | ENA

EGR1 regulation in human bone marrow stromal cells

Project description:Human bone marrow stromal cells (BMSCs) are key elements of the hematopoietic environment and they play a central role in bone and bone marrow physiology. However, how key BMSC functions are regulated is largely unknown. We analyzed the role of the immediate early response transcription factor EGR1 as key BMSC regulator and found that EGR1 was highly expressed in prospectively-isolated primary BMSCs, downregulated upon culture, and lower in non-CFU-F-containing CD45neg BM cells. Furthermore, EGR1 expression was lower in proliferative regenerating adult and fetal primary cells compared to adult steady-state BMSCs. Accordingly, EGR1 overexpression markedly decreased BMSC proliferation but considerably improved hematopoietic stroma support function as indicated by an increased production of transplantable CD34+CD90+ hematopoietic stem cells in expansion co-cultures. The improvement of BMSC stroma support function was mediated by increased expression of hematopoietic supporting genes, such as VCAM1 and CCL28. On the other hand, EGR1 knockdown increased ROS-mediated BMSC proliferation, and clearly reduced BMSC hematopoietic stroma support potential. These findings thus show that EGR1 is a key BMSC transcription factor with a dual role in regulating proliferation and hematopoietic stroma support function that is controlling a genetic program to coordinate the specific functions of BMSC in their different biological contexts.

2019-06-27 | PXD011767 | Pride

Haptenation of Macrophage Migration Inhibitory Factor

Project description:Firstly, the adductome of the two major mouse blood proteins, as well as of the protein macrophage migration inhibitory factor (MIF) with the model hapten tetramethylrhodamine isothiocyanate (TRITC)was invastigated. After incubation at different molar ratios of TRITC, an untargeted Full MS/dd-MS2 experimental approach was used with a QExactive Quadrupole-Orbitrap mass spectrometer. The data were processed with Proteome Discoverer and the suggested sites of adductions were confirmed in parallel reaction monitoring mode (PRM) on the same instruments. Blood and lymph node samples of mise treated topically with the same hapten were screened for the peptides containing the most reactive sites of the aformentioned proteins. Only the adducted N-terminal peptide of the protein MIF could be detected. Thereafter, a quantification approach in PRM mode using standards was implemented to quantify this peptide, both modified and unmodified. Quantification was based in characteristic b and y ions.

2022-04-08 | PXD031143 | Pride

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