Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB15338 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| DRR446384_1.fastq.gz | Fastqsanger.gz | |||
| DRR446384_2.fastq.gz | Fastqsanger.gz | |||
| DRR446385_1.fastq.gz | Fastqsanger.gz | |||
| DRR446385_2.fastq.gz | Fastqsanger.gz | |||
| DRR446386_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 32 |
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Project description:Ischemia-reperfusion injury (IRI) is a well-known model for acute kidney injury (AKI).
We applied proteomic analysis to detect membrane proteins from IRI mouse kidneys. The analysis set are composed of negative control (sham operation), samples of 4-hour after IRI, and samples of 8-hour IRI.
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Project description:We performed single nucleus ATAC (snATAC-seq) to generate cell-type-specific chromatin accessibility atlas of the mouse kidneys with ischemia-reperfusion injury. The single nucleus RNA-seq of the same samples were previously published (GEO139107)
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Project description:To elucidate changes in cellular populations in the ischemic acute kidney injury, we performed single cell RNAseq on mouse kidneys following ischemic reperfusion injury and a sham surgery. Mice were subjected to bilateral clamping of the renal pedicule for 30 minutes. After 6-7 hours of reperfusion the kidneys were removed and processed by a MACs cell isolation protocol and dead cell removal (PMID:33448928) , sorted on a 10X Chromium platform version 3 and libraries generated. Sequencing was performed on an Illumina NovaSeq 6000.
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Project description:Quantitative mass spectrometry of mouse hearts (left ventricle) 2 days after ischemia/reperfusion or sham surgery.
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Project description:Hepatic ischemia reperfusion injury is a dynamic process consisting of two stages: ischemia and reperfusion, and triggers a cascade of physiological and biochemical events. Given the important role of microRNAs in regulating gene expression, we analyzed gene expression changes in mouse livers at sham control, ischemia stage, and reperfusion stage. We generated global expression profiles of microRNA and mRNA genes in mouse livers subjected to ischemia reperfusion injury at the three stages, respectively. Comparison analysis showed that reperfusion injury had a distinct expression profile whereas the ischemia sample and the sham control were clustered together. Consistently, there are 69 differentially expressed microRNAs between the reperfusion sample and the sham control whereas 28 differentially expressed microRNAs between the ischemia sample and the sham control. We further identified two modes of microRNA expression changes in ischemia reperfusion injury. Functional analysis of both the differentially expressed microRNAs in the two modes and their target mRNAs revealed that ischemia injury impaired mitochondria function, nutrient consumption, and metabolism process. In contrast, reperfusion injury led to severe tissue inflammation that is predominantly an innate-immune response in the ischemia reperfusion process. Our staged analysis of gene expression profiles provides new insights into regulatory mechanisms of microRNAs in mouse hepatic ischemia reperfusion injury.
2015-10-01 | GSE72314 | GEO
Project description:Hepatic ischemia reperfusion injury is a dynamic process consisting of two stages: ischemia and reperfusion, and triggers a cascade of physiological and biochemical events. Given the important role of microRNAs in regulating gene expression, we analyzed gene expression changes in mouse livers at sham control, ischemia stage, and reperfusion stage. We generated global expression profiles of microRNA and mRNA genes in mouse livers subjected to ischemia reperfusion injury at the three stages, respectively. Comparison analysis showed that reperfusion injury had a distinct expression profile whereas the ischemia sample and the sham control were clustered together. Consistently, there are 69 differentially expressed microRNAs between the reperfusion sample and the sham control whereas 28 differentially expressed microRNAs between the ischemia sample and the sham control. We further identified two modes of microRNA expression changes in ischemia reperfusion injury. Functional analysis of both the differentially expressed microRNAs in the two modes and their target mRNAs revealed that ischemia injury impaired mitochondria function, nutrient consumption, and metabolism process. In contrast, reperfusion injury led to severe tissue inflammation that is predominantly an innate-immune response in the ischemia reperfusion process. Our staged analysis of gene expression profiles provides new insights into regulatory mechanisms of microRNAs in mouse hepatic ischemia reperfusion injury.
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Project description:To study the protective effects of preoperative fasting against renal ischemia-reperfusion injury, young-lean as well as aged overweight mice were subjected to three days of fasting or ad libitum food consumption, and gene expressions in kidneys of male mice were analyzed 19 samples (5 young control, 4 young fasted, 5 aged control, 5 aged fasted), each from individual mice
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Project description:Fibroblasts are present in every organ. While the role fibroblasts in chronic diseases such as fibrosis or tumor expression has been extensively explored, little is known about their physiological role. The kidney possesses a unique capacity to recover from even severe acute injury. We study molecular mechanisms of this intrinsic repair capacity in the mouse model of ischemia-reperfusion (IR). In this model, the renal artery and vein are clamped for 45 min, leading to acute kidney injury. The kidney spontaneously recovers from such IR injury within 14 days. IR kidney injury is associated with a transient accumulation of fibroblasts in the diseased tissue. We hypothesized that fibroblasts aid the repair of acute IR injury in the kidney. To elucidate how FSP1+ fibroblasts may contribute to the repair of kidney injury, we undertook a global unbiased approach to compare gene expression profiles of fibroblasts isolated from kidneys post-IRI and from control kidneys by FACS sorting. To investigate the role fibroblasts may play in the repair of kidney inhury, we performed ischemia reperfusion injury surgery on transgenic mice in which the FSP-1 promoter drives EGFP expression. Kidney injury peaks at day 3 post-IRI, followed by spontaneous regeration that restores nearly perfect kidney architecture and health by day 10. Fibroblasts are thought to possibly play a role in this process, as they are normally rare in the healthy kidney, acute kidney injury is associated with a transient accumulation of interstitial fibroblasts, but whether they may help repair the acute kidney injury or in fact could contribute to the damage is not known. To compare the gene expression profiles of normal fibroblasts and those from post-ischemic kidneys, we sacrificed control FSP1-GFP mice and the FSP1-GFP mice three days post-IRI. We generated single-cell suspensions from both the post-IRI and control kidneys, and then isolated FSP1-GFP+ cells by FACS sorting that, when cultured on plastic, displayed typical fibroblast morphology. Total RNA was immediately extracted from the sorted cells and amplified to produce enough for a array. We biotinylated five of the samples from post-ischemic kidneys and three of the control (non-ischemic) kidneys and used Affymetrix 3' Arrays to examine differences in gene expression profiles between the two groups that may she some light on what role, if any, fibroblasts play in the spontaneous healing of the kidney after acute kidney injury. We performed ischemia reperfusion surgery in FSP1-GFP mice, and at day 3, we sacrificed the mice, isolated FSP1-GFP positive cells from both IR and normal control kidneys by FACS sorting, extracted total RNA from the isolated FSP1-GFP cells and used Affymetrix Mouse Expression Array 430 2.0 microarrays to perform gene expression profiling of the samples. All told, we performed the FACS Sorting, RNA extration, and hybridization with 5 ischemic kidneys and 3 normal kidneys. Fibroblasts, acute kidney injury, repair, comparative gene expression profiling, microarrays, FACS sorting, role in healing
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Project description:To study the protective effects of preoperative fasting against renal ischemia-reperfusion injury, young-lean as well as aged overweight mice were subjected to three days of fasting or ad libitum food consumption, and gene expressions in kidneys of male mice were analyzed
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