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Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin

ABSTRACT: Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin

PROVIDER: PRJNA718584 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14097438_1.fastq.gz	Fastqsanger.gz
	SRR14097438_2.fastq.gz	Fastqsanger.gz
	SRR14097439_1.fastq.gz	Fastqsanger.gz
	SRR14097439_2.fastq.gz	Fastqsanger.gz
	SRR14097440_1.fastq.gz	Fastqsanger.gz

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Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [Treg]

Project description:Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [Treg]

| PRJNA718317 | ENA

Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [microglia]

Project description:Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [microglia]

| PRJNA718328 | ENA

Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [Treg]

Project description:The precise mechanisms underlying the salutary effects of regulatory T cells (Tregs) on long-term tissue repair after stroke remain elusive. Here, , we performed RNAseq analysis on sorted CD4+CD25+Foxp3(GFP)+ Tregs from the ischemic brain and blood of DTR stroke mice 14d after surgery and from the blood of sham DTR mice. The unique patterns of gene expression of brain-infiltrating Tregs exhibited a significant enrichment for genes with functions in immunoregulation and cell-cell interactions, especially the activation of phagocytes.

2021-05-19 | GSE171097 | GEO

Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [scRNA-seq]

Project description:Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [scRNA-seq]

| PRJNA718585 | ENA

Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [scRNA-seq]

Project description:CD45high infiltrating immune cells were sorted from ischemic mouse brains at 5 days (5d) and 14 days (14d) after transient (60 min) middle cerebral artery occlusion (tMCAO) and subjected to scRNAseq.

2021-05-19 | GSE171169 | GEO

Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin

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

2021-05-19 | GSE171171 | GEO

Regulatory T Cell-Microglia Crosstalk Promotes White Matter Repair after Ischemic Stroke through Osteopontin [microglia]

Project description:We cocultured Tregs in transwells with brain slices collected 5d after tMCAO in the lower compartment for 24h to activate Tregs. Tregs in the transwells were transferred to new wells with primary cultured microglia, and cocultured for 2d. Microglia were then collected for bulk RNAseq analyses. The results revealed roles of activated Tregs in polarizing microglia toward an anti-inflammatory and reparative phenotype.

2021-05-19 | GSE171102 | GEO

Oligodendrocyte Progenitor Cell Transcriptome in White Matter Stroke

Project description:Tissue progenitors maintain the integrity of organ systems through aging and stress. The brain’s white matter regions experience ischemic lesions and age-dependent degeneration. Brain white matter contains progenitors, oligodendrocyte precursor cells (OPCs), which can repair some insults. The response of OPCs to white matter ischemia and aging is not known. We characterized the response of OPCs to white matter stroke using OPC reporter mice, cell migration tracking, OPC specific RNA sequencing, and mechanistic studies in candidate biochemical pathways in the aged brain. White matter stroke induces initial proliferation of local OPCs but blocks differentiation, shunting a portion into astrocytes. Candidate signaling pathways for this differentiation block including novel interactions of inhibin and matrilin-2 and new roles of NgR1 ligands following white matter stroke. Stroke induces inhibin expression in astrocytes and downregulates OPC matrilin-2 that contributes into OPC differentiation block. Antagonism of NgR1 ligands promotes OPC differentiation by attenuating the OPC astrocytic transformation and enhances functional recovery from stroke in aged animals.

2019-11-15 | GSE53737 | GEO

Gene expression analysis of peripheral whole blood RNA following ischemic stroke

Project description:The purpose of this project was to elucidate gene expression in the peripheral whole blood of acute ischemic stroke patients to identify a panel of genes for the diagnosis of acute ischemic stroke. Peripheral blood samples were collected in Paxgene Blood RNA tubes from stroke patients who were >18 years of age with MRI diagnosed ischemic stroke and controls who were non-stroke neurologically healthy. The results suggest a panel of genes can be used to diagnose ischemic stroke, and provide information about the biological pathways involved in the response to acute ischemic stroke in humans. Total RNA extracted from whole blood in n=39 ischemic stroke patients compared to n=24 healthy control subjects.

2010-06-08 | E-GEOD-16561 | biostudies-arrayexpress

IL4 improves white matter repair after stroke

Project description:The repair of white matter damage is of paramount importance for functional recovery after brain injuries.We report that interleukin-4 (IL-4) promotes oligodendrocyte regeneration and remyelination. IL-4 receptor expression was detected in a variety of glial cells after ischemic brain injury, including oligodendrocyte lineage cells. IL-4 deficiency in knockout mice resulted in greater deterioration of white matter over 14 days after stroke. Consistent with these findings, intranasal delivery of IL-4 nanoparticles after stroke improved white matter integrity and attenuated long-term sensorimotor and cognitive deficits in wild-type mice, as revealed by histological immunostaining, electron microscopy, diffusion tensor imaging, and electrophysiology. The selective effect of IL-4 on remyelination was verified in an ex vivo organotypic model of demyelination. By leveraging primary oligodendrocyte progenitor cells (OPCs), microglia-depleted mice, and conditional OPC-specific PPARγ knockout mice, we discovered a direct salutary effect of IL-4 on oligodendrocyte differentiation that was mediated by the PPARγ axis. Our findings reveal a new regenerative role of IL-4 in the CNS, which lies beyond its known immunoregulatory functions on microglia/macrophages or peripheral lymphocytes. Therefore, intranasal IL-4 delivery may represent a novel therapeutic strategy to improve white matter integrity in stroke and other brain injuries.

2019-08-31 | GSE131774 | GEO

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