Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Responses of microglia in the mouse brain after ischemic stroke

ABSTRACT: This project investigated responses of microglia in the mouse brain after an ischemic stroke. Mice were subjected to transient focal cerebral ischemia induced by 1 hour of left middle cerebral artery (MCA) occlusion followed by reperfusion. Control mice were subjected to sham surgery without the occlusion of the MCA. Three days after MCA occlusion or sham surgery, microglia were enriched from the brain by fluorescence-activated cell sorting and subjected to bulk RNA-seq. This project was closely related to our previously published dataset GSE141972; therefore, the animals had the same genetic background for comparison purposes. The animals used in this study were hemizygouse for CX3CR1(CreER), so that they can serve as wild-type controls for any conditional knockout driven by the CX3CR1(CreER) promoter.

ORGANISM(S): Mus musculus

PROVIDER: GSE234865 | GEO | 2023/08/08

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

The role of Clec4e (Mincle) in microglia response to transient ischemic injury

Project description:This data set shows dramatic changes in gene expression in microglia isolated from C57Bl6/J mice subjected to transient middle cerebral artery occlusion, as compared to those subjected to sham surgery. Mice deficient in Mincle (Clec4e-/-) showed significantly improved injury outcomes 3 and 7 days after transient middle cerebral artery occlusion. However, when comparing changes in gene expression in microglia 24 hours after blood reperfusion, there were no differences between wild-type and Clec4e-/- mice, indicating that Mincle does not participate in early microglial activation. Wild type and Mincle knock-out (Clec4e-/-) mice. After 1 h of transient middle cerebral artery occlusion (tMCAO) and 24 h of reperfusion, mice were perfused with PBS, their brains dissected, and 2 ipsilesional hemispheres (with cerebellum and brainstem removed) pooled for microglia isolation. For sham-operated animals, the whole forebrain was used and brains were not pooled. After myelin separation by Percoll gradient centrifugation, around 80,000 CD45intermediate, CD11b+ microglial cells were sorted from each sample. Sham samples n=3, tMCAO samples n=5.

2016-03-24 | E-GEOD-77986 | biostudies-arrayexpress

The role of Clec4e (Mincle) in microglia response to transient ischemic injury

2016-03-24 | GSE77986 | GEO

Nanostring Glial Profiling Panel of whole brain RNA from CD73ko and control mice subjected to tMCAO

Project description:CD73ko and control mice were subjected to transient middle cerebral artery occlusion (tMCAO) for 50min or subjected to equally long sham surgery. Whole brain RNA was isolated and analyzed with the NanoString nCounter® mouse glial profiling panel.

2022-05-17 | GSE203161 | GEO

Effect of stroke on the transcriptome of muscularis macrophages in the small intestines

Project description:To investigate the effect of stroke on the trasnscriptome of intestinal muscularis macrophages, mice underwent permanent middle cerebral artery occlusion (pMCAO) or sham surgery for 24 hours

2024-03-24 | GSE216968 | GEO

Effect of stroke on the transcriptome of epithelial cells in the small intestines

Project description:To investigate the effect of stroke on the transcriptome of intestinal epithelial cells, mice underwent permanent middle cerebral artery occlusion (pMCAO) or sham surgery for 24 hours

2024-03-24 | GSE216581 | GEO

Effect of stroke on the transcriptome of lamina propria macrophages in the small intestines

Project description:To investigate the effect of stroke on the trasnscriptome of intestinal lamina propria macrophages, mice underwent permanent middle cerebral artery occlusion (pMCAO) or sham surgery for 24 hours

2024-03-24 | GSE216971 | GEO

Self-renewal of Differentiated Microglia Involves Two Distinct Mechanisms II

Project description:single cell gene expression profiling of microglia after peripheral nerve injury in Cx3cr1-yfp-creER/+ animals and Cx3cr1-yfp-creER/+; Tnfaip3 fl/fl animals

2022-04-19 | GSE163948 | GEO

Neurofibromatosis type 1-dependent alterations in mouse microglia function are not cell-intrinsic

Project description:We previously discovered a sex-by-genotype defect in microglia function using a germline heterozygous knockout mouse model of Neurofibromatosis type 1 (Nf1+/- mice), in which only microglia from male Nf1+/- mice exhibited defects in purinergic signaling. Herein, we leveraged an unbiased proteomic approach to demonstrate that male, but not female, heterozygous Nf1+/- microglia exhibit differences in protein expression, which largely reflect pathways involved cytoskeletal organization. In keeping with potential defects in cytoskeletal function, only male Nf1+/- microglia had reduced process arborization and surveillance capacity. Next, to determine whether these microglial defects were cell autonomous or reflected adaptive responses to Nf1 heterozygosity in other cells in the brain, we generated conditional microglia Nf1-mutant knockout mice by intercrossing Nf1flox/flox with Cx3cr1-CreER mice (Nf1flox/wt; Cx3cr1-CreER mice, Nf1MG+/- mice). Surprisingly, neither male nor female Nf1MG+/- mouse microglia had impaired process arborization or surveillance capacity. In contrast, when Nf1 heterozygosity was generated in neurons, astrocytes and oligodendrocytes by intercrossing Nf1flox/flox with hGFAP-Cre mice (Nf1flox/wt; hGFAP-Cre mice, Nf1GFAP+/- mice), the microglia defects found in Nf1+/- mice were recapitulated. Collectively, these data reveal that Nf1+/- sexually dimorphic microglia abnormalities are likely not cell-intrinsic properties, but rather reflect a response to Nf1 heterozygosity in other brain cells.

2023-05-10 | PXD035881 | Pride

Comparative brain proteomic analysis between sham and cerebral ischemia experimental groups

Project description:In experimental animal studies, control sham groups are essential to reduce the influence of the surgical intervention on the analysis. The intraluminal filament procedure is one of the most common models of middle cerebral artery occlusion (MCAO) used in the study of brain ischemia. However, in these studies, the sham group has not usually been included in the experimental design. In this study, we aimed to evaluate the relevance of the sham group by analyzing and comparing the brain protein profile between a sham and an MCAO ischemic group. In the sham group, 98 dysregulated proteins were detected compared to the 171 in the ischemic group. Moreover, a comparative study of both protein profiles showed the existence of a pool of 57 proteins that appeared dysregulated in both sham and ischemic animals. These results indicate that the surgical procedure required for intraluminal occlusion of the MCA induces changes in brain protein expression that are not associated with the ischemic lesion. This study highlights the importance of including control sham groups in the experimental design to guarantee that the therapeutic target under study is not affected by the surgical intervention.

2024-08-10 | PXD052899 | Pride

Stroke-induced transcriptomic alterations in mouse cerebral microvessels

Project description:To investigate the stroke-induced changes in gene expression in cerebral microvessels, we subjected mice to transient middle cerebral artery occlusion (tMCAO) or sham surgeries. 24h hours later, cerebral microvessels were harvested and RNA was isolated. We then performed gene expression profiling analysis using data obtained from RNA-seq of cerebral microvessels isolated from 8 mice (4 shams and 4 tMCAO)

2022-12-24 | GSE221379 | 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