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Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction (RNA-Seq)

ABSTRACT: Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction (RNA-Seq)

PROVIDER: PRJNA807633 | ENA |

REPOSITORIES: ENA

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Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction (RNA-Seq)

Project description:Recent reports have suggested a protective role for vascular endothelial growth factor C (VEGFC) during acute cardiac lymphangiogenesis post MI. Glinton et al. report that defective efferocytosis by macrophages after experimental MI leads to a reduction in cardiac lymphangiogenesis and Vegfc expression.

2022-03-31 | GSE196866 | GEO

Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction (ChIP-Seq)

2022-03-31 | GSE196865 | GEO

Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction

Project description:Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction

| PRJNA807628 | ENA

Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction (ChIP-Seq)

Project description:Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction (ChIP-Seq)

| PRJNA807634 | ENA

Macrophage-produced VEGFC is induced by efferocytosis to resolve inflammation and improve ventricular function after myocardial infarction

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

2022-03-31 | GSE196867 | GEO

High VEGFC expression is associated with unique gene expression profiles and predicts adverse prognosis in pediatric and adult acute myeloid leukemia.

Project description:High VEGFC mRNA expression of AML blasts is related to increased in vitro and in vivo drug resistance. The prognostic significance of VEGFC on long-term outcome and its associated gene expression profiles remain to be defined. We studied the effect of VEGFC on treatment outcome and investigated gene expression profiles associated with VEGFC using microarray data of 525 adult and 100 pediatric AML patients. High VEGFC expression appeared strongly associated with reduced complete remission rate, reduced overall and event-free survival (OS and EFS) in adult AML. Multivariable analysis established high VEGFC as prognostic indicator independent of cytogenetic risk, FLT3-ITD, NPM1, CEBPA, age and WBC. Also in pediatric AML high VEGFC was related to reduced OS. A unique series of differentially expressed genes was identified that distinguished AML with high VEGFC from AML with low VEGFC, i.e., 331 upregulated genes (representative of proliferation, VEGF-receptor activity, signal transduction) and 44 downregulated genes (e.g. related to apoptosis) consistent with a role in enhanced chemoresistance. In conclusion, high VEGFC predicts adverse long-term prognosis and provides prognostic information in addition to well-known prognostic factors. 98 bone marrow and peripheral blood samples were collected at diagnosis and frozen. They were later thawed and hybridized to Affymetrix U133 Plus 2.0 arrays.

2010-06-09 | E-GEOD-22056 | biostudies-arrayexpress

Study of human macrophage reprogramming toward a pro-resolving profile by efferocytosis

Project description:Inﬂammation is a physiopathological process triggered by infection or tissue damage. Immune system initiates coordinated sequential steps in response to these danger signals. Once the threat has been contained inflammation has to be subsequently shut down. Inflammation resolution is initiated by the reprogramming of pro-inflammatory macrophages toward a pro-resolving profile. This reprogramming is induced in particular by the non-phlogistic engulfment of apoptotic cells, mostly apoptotic neutrophils, a process called efferocytosis. As a matter of fact, macrophages are an essential linchpin regulating both inflammation triggering and sustaining and inflammation resolution. This duality can be achieved through the tremendous plasticity of these innate immune cells. Indeed, depending on microenvironmental signals (cytokines, efferocytosis, growth factors…) macrophages can adopt numerous diverse and sometimes antagonistic phenotypes. The mechanisms governing these transitions remain relatively scattered especially in human. With this project we propose to explore the mechanisms involved in human macrophage reprogramming toward a pro-resolving profile after efferocytosis. The stakes are high due to the estimated prevalence of chronic inflammatory diseases in Western society is 5 to 7%. Chronic inflammation is a burden to patient due to life-long debilitating illness and increased mortality and is also a burden to society due to high costs for therapy and care. Finding new therapies to limit chronic inflammation establishment and persistence is thus a highly valuable goal.

2021-12-01 | E-MTAB-8885 | biostudies-arrayexpress

ALOX12-expressing macrophages produce MCTRs to promote local efferocytosis and tissue repair

Project description:Poor wound healing due to dysregulated tissue repair responses can exacerbate and prolong disease. Successful tissue repair is critically dependent on the timely clearance of apoptotic cells by macrophages in a process termed efferocytosis. Mechanisms and factors that link these two fundamental processes are therefore of great interest. Herein, we observed that a subset of 12-lipoxygenase (ALOX12)-expressing macrophages upregulate the production of host protective autacoids termed maresin conjugates in tissue regeneration (MCTR) during efferocytosis. MCTRs in turn play autocrine and paracrine functions in enhancing the ability of both ALOX12-positive and surrounding ALOX12-negative macrophages to uptake apoptotic cells. These effects of ALOX12-positive macrophages and MCTRs in regulating apoptotic cells clearance was also observed at sites of high apoptotic cell burden in mouse and flatworm models, as the formation of these mediators was upregulated and abrogation of related ALOX activity in mice reduced the ability of macrophages to clear apoptotic cells. Furthermore, add-back of MCTRs rapidly enhanced the efferocytosis capability of macrophages in mice and planarian flatworms. Mechanistic studies in macrophages revealed that MCTRs modulated Rac1 signalling and glycolytic metabolism, two pathways crucial for effective efferocytosis, and enhanced efferocytosis-induced WNT ligand production. Inhibition of Rac1 abrogated the ability of MCTRs to enhance glucose uptake and efferocytosis in vitro, while inhibiting either Rac1, glycolysis, or WNT ligand production prevented MCTR-mediated enhancement of apoptotic cell clearance and tissue regeneration. Taken together, our findings identify a central role for ALOX12-expressing macrophages in the regulation of efferocytosis and tissue repair via the local formation of MCTRs.

2023-12-12 | PXD038390 | Pride

Specific fibroblast subpopulations and neuronal structures serve as local sources of Vegfc-processing components during lymphangiogenesis

Project description:Proteolytical processing of the growth factor VEGFC through the concerted activity of CCBE1 and ADAMTS3 is required for lymphatic development to occur. How these factors act together in time and space, and which cell types produce these factors is not understood. Here we assess the function of Adamts3 and the related protease Adamts14 during zebrafish lymphangiogenesis and show both proteins to be able to process Vegfc. Only the simultaneous loss of both protein functions results in lymphatic defects identical to vegfc loss-of-function situations. Cell transplantation experiments demonstrate neuronal structures and/or fibroblasts to constitute cellular sources not only for both proteases but also for Ccbe1 and Vegfc. We further show that it is the local restriction of Vegfc maturation which is needed to trigger normal lymphatic sprouting and directional migration. Our data provide a single-cell resolution model for establishing secretion and processing hubs for Vegfc during developmental lymphangiogenesis

2020-04-28 | GSE146923 | GEO

High VEGFC expression is associated with unique gene expression profiles and predicts adverse prognosis in pediatric and adult acute myeloid leukemia.

2010-06-02 | GSE22056 | GEO

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