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Effect of VEGF-C treatment on sorted meningeal CD45+ cells

ABSTRACT: Effect of VEGF-C treatment on sorted meningeal CD45+ cells

PROVIDER: PRJNA1057768 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR27362658_1.fastq.gz	Fastqsanger.gz
	SRR27362658_2.fastq.gz	Fastqsanger.gz
	SRR27362659_1.fastq.gz	Fastqsanger.gz
	SRR27362659_2.fastq.gz	Fastqsanger.gz
	SRR27362660_1.fastq.gz	Fastqsanger.gz

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Effect of VEGF-C treatment on sorted meningeal CD45+ cells

Project description:Transcriptional profiling of mouse dural CD45+ cells in comparing AAV-Controls with AAV-VEGFC treaded mice. Objective was to determine the effect of the VEGFC treatment on global gene expression of meningeal immune cells.

2023-12-29 | GSE252093 | GEO

Effect of VEGF-C treatment on sorted meningeal lymphatic endothelial cells

Project description:Effect of VEGF-C treatment on sorted meningeal lymphatic endothelial cells

| PRJNA1057820 | ENA

Effect of VEGF-C treatment on sorted brain microglia/macrophages

Project description:Meningeal lymphatic vessels (MLVs) promote tissue clearance and immune surveillance in the central nervous system (CNS). Vascular endothelial growth factor-C (VEGF-C) regulates MLV development and maintenance and has therapeutic potential for treating neurological disorders. Herein, we investigated the effects of VEGF-C overexpression on brain fluid drainage and ischemic stroke outcomes in mice. Intra-cerebrospinal administration of an adeno-associated virus expressing mouse full-length VEGF-C (AAV-mVEGF-C) increased CSF drainage to the deep cervical lymph nodes (dCLNs) by enhancing lymphatic growth, and upregulated neuroprotective signaling pathways identified by single nuclei RNA sequencing of brain cells. In a mouse model of ischemic stroke, AAV-mVEGF-C pretreatment reduced stroke injury and ameliorated motor performances in the subacute stage, associated with mitigated microglia-mediated inflammation and increased BDNF signaling in brain cells. Neuroprotective effects of VEGF-C were lost upon ligation of the dCLN afferent lymphatics, and not mimicked by acute post-stroke VEGF-C injection. We conclude that VEGF-C prophylaxis promotes multiple vascular, immune, and neural responses that culminate in a protection against neurological damage in acute ischemic stroke.

2024-02-27 | GSE252622 | GEO

Effect of VEGF-C treatment on sorted meningeal lymphatic endothelial cells

Project description:Transcriptional profiling of mouse dural lymphatic endothelial cells (LECs) in comparing AAV-Controls with AAV-VEGFC treaded mice. Objective was to determine the effect of the VEGFC treatment on global gene expression of LECs.

2023-12-29 | GSE252115 | GEO

Meningeal lymphatic vasculature mediates cervical lymph node metastasis of brain tumors through VEGF-C/VEGFR3/eNOS signaling pathway

Project description:Purpose: The rediscovery of meningeal lymphatic vessels (MLVs) suggests a potential linkage between brain tumors and cervical lymph nodes (LNs). In this study, we investigated whether and how meningeal lymphatics regulate the metastasis of brain tumor cells. Experimental Design: We first examined the pattern of MLVs and LNs after tumor cells were injected into the cisterna magna (i.c.m.) or subdural space of mice. The meninges were isolated and analyzed by whole-mount immunofluorescence staining. LN metastasis was analyzed by detecting GFP+ tumor cells. Then we used inducible knock-out mice and AAV-VEGF-C delivery system to study the function of MLVs in mediating the metastasis of brain tumor cells. Finally, RNA-seq was used to determine the expression profiles of meningeal lymphatic endothelial cells (mLECs) in mice with or without tumors. The roles of the endothelial nitric oxide synthetase (eNOS) were evaluated both genetically and pharmacologically in vivo. Results: Meningeal lymphangiogenesis induced by GL261 and B16 tumors was correlated with dCLN swelling and metastasis. dCLN metastasis was suppressed in MLV-defective mice, while promoted in AAV-VEGF-C-treated mice. In addition, we found that VEGF-C/VEGFR3 signaling regulated both meningeal and tumor lymphangiogenesis. Tumor-associated mLECs have a distinct transcriptomic signature, which highly express eNOS. Furthermore, genetic or pharmacological inhibition of eNOS significantly suppressed meningeal lymphangiogenesis and dCLN metastasis. Conclusions: The meningeal lymphatic vasculature mediates the metastasis of brain tumors to cervical LNs, mainly through a VEGF-C/VEGFR3-eNOS signaling pathway, suggesting that MLV may be a potential therapeutic target for the extracranial metastasis of brain tumors.

2020-03-16 | GSE128207 | GEO

Effect of VEGF-C treatment on sorted brain microglia/macrophages

Project description:Effect of VEGF-C treatment on sorted brain microglia/macrophages

| PRJNA1061529 | ENA

CD45+ vs CD45- RCC proteome characterization

Project description:Exploration of proteome differences between CD45+ and CD45- cell types in renal cell carcinoma tumors and normal adjacent tissue patient samples.

2020-10-14 | PXD014370 | Pride

Enhanced meningeal lymphangiogenesis and glymphatic drainage ameliorates neuroinflammation and white matter demyelination

Project description:White matter hyperintensity (WMH) is a pressing global medical issue linked to cognitive decline and stroke risk. Despite its significance, the underlying mechanisms remain unclear. Here, we directly demonstrated in humans that high WMH burden correlated with delayed glymphatic pathway drainage. Additionally, a longitudinal cohort study revealed that glymphatic dysfunction predicted WMH progression. Next, in a rat model of WMH, we confirmed the presence of impaired lymphangiogenesis and glymphatic drainage, followed by elevated microglial activation and white matter demyelination. Notably, enhancing meningeal lymphangiogenesis and glymphatic drainage through adenoviral delivery of Vascular Endothelial Growth Factor-C (VEGF-C) mitigated microglial gliosis and white matter demyelination. Conversely, blocking the growth of meningeal lymphatics with a VEGF-C trap strategy exacerbated these changes. Our findings highlight the role of meningeal lymphatics and glymphatic pathway dysfunction in aggravating brain white matter injury and advancing WMH, providing a potential novel strategy for WMH prevention and treatment.

2024-07-17 | GSE240229 | GEO

Characterization of the meningeal leukocytes in 3xTg-AD mice

Project description:We characterize the meningeal leukocyte (CD45+ cells) in wild-type and 3xTg-AD mice, a transgenic model of Alzheimer's disease (AD).

2025-05-29 | GSE180188 | GEO

Enhanced meningeal lymphatic drainage ameliorates lipopolysaccharide-induced brain injury in aged mice

Project description:Sepsis-associated encephalopathy (SAE) is an acute cerebral dysfunction caused by sepsis. Neuroinflammation induced by sepsis is considered a potential mechanism of SAE; however, very little is known about the role of the meningeal lymphatic system in SAE. The aged mice with SAE showed a significant decrease in the drainage of OVA-647 into the dCLNs and the coverage of the Lyve-1 in the meningeal lymphatic, indicating that sepsis impaired meningeal lymphatic drainage and morphology. The meningeal lymphatic function of aged mice was more vulnerable to sepsis in comparison to young mice. Sepsis also decreased the protein levels of caspase-3 and PSD95, which was accompanied by reductions in the activity of hippocampal neurons. Microglia were significantly activated in the hippocampus of SAE mice, which was accompanied by an increase in neuroinflammation, as indicated by increases in interleukin-1 beta, interleukin-6 and Iba1 expression. Cognitive function was impaired in aged mice with SAE. However, the injection of AAV1-VEGF-C significantly increased coverage in the lymphatic system and tracer dye uptake in dCLNs, suggesting that AAV1-VEGF-C promotes meningeal lymphangiogenesis and drainage. Furthermore, AAV1-VEGF-C reduced microglial activation and neuroinflammation and improved cognitive dysfunction. Improvement of meningeal lymphatics also reduced sepsis-induced expression of disease-associated genes in aged mice. Pre-existing lymphatic dysfunction by ligating bilateral dCLNs aggravated sepsis-induced neuroinflammation and cognitive impairment.

2023-11-30 | GSE247222 | GEO

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