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MiRNome changes in the mouse kidney after unilateral ischemia-reperfusion injury and delayed contralateral nephrectomy

ABSTRACT: miRNome changes in the mouse kidney after unilateral ischemia-reperfusion injury and delayed contralateral nephrectomy

PROVIDER: PRJNA660461 | ENA |

REPOSITORIES: ENA

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miRNome changes in the mouse kidney after unilateral ischemia-reperfusion injury and delayed contralateral nephrectomy

Project description:Comparing the effect of unilateral ischemia-reperfusion injury (IRI) or sham operation (sIRI) with delayed contralateral nephrectomy (Nx) or sham operation (sNx) in mouse kidney. IRI was performed on day 0 and the contralateral kidney was removed on day 7. Mice were sacrificed on day 8. Four animals were selected from the sham IRI-sham Nx and sham IRI-Nx groups and six animals were selected from the IRI-sham Nx and IRI-Nx groups for miRNA microArray analysis on the base of their proinflammatory (TNF-α and IL-6 and CCL2) and immune system-related (Complement component 3) mRNA expression levels.

2020-09-01 | GSE157221 | GEO

The transcriptional response to unilateral nephrectomy with and without ischemia-reperfusion injury

Project description:Transcriptome analysis was done after warm renal ischemia-reperfusion injury (IRI) in a rat model. Earlier studies have shown a protective effect of prior unilateral nephrectomy (UNx) against IRI in the remaining, contralateral kidney compared to a non-neprectomized control group. We aimed at identifying the underlying molecular mechanisms. We used the Affymetrix Clariom D array (formerly known as RTA 1.0 st.) Array data was processed in the Affymetrix Console Software.

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The changes of Chromatin Accessibiliy Triggered by Unilateral Nephrectomy [ATAC-seq]

Project description:Purpose: Experiments were done in mice undergoing unilateral nephrectomy (UNx) and sham nephrectomy. At specific time points (24 hours and 72 hours) after surgery, the earliest first portion of the kidney proximal tubule (PT-S1) and the cortical collecting duct (CCD) were manually micro-dissected and utilized for transcriptomic analysis by single-tubule small sample RNA-Seq and single-tubule ATAC seq. Methods: We carried out ATAC-sequencing in microdissected ealiest portion of proximal tubules (PT-S1) from mice with or without (sham) unilateral nephrectomy (UNx). Each group (Sham or UNx) has 3 biological replicates. Results and conclusion: ATAC-seq peaks in microdissected PT-S1 revealed a predominance of binding site motifs corresponding to PPARα.

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Transcriptome Changes of Microdissected Kidney Tubules triggered by Unilateral Nephrectomy [RNA-seq]

Project description:Purpose: Experiments were done in mice undergoing unilateral nephrectomy (UNx) and sham nephrectomy. At specific time points (24 hours and 72 hours) after surgery, the earliest first portion of the kidney proximal tubule (PT-S1) and the cortical collecting duct (CCD) were manually micro-dissected and utilized for transcriptomic analysis by single-tubule small sample RNA-Seq. Methods: We carried out RNA-sequencing in microdissected ealiest portion of proximal tubules (PT-S1) or cortical collecting duct (CCD) from mice with or without (sham) unilateral nephrectomy (UNx). Each group (Sham or UNx) has 3-5 biological replicates. Results and conclusion: RNA-Seq in microdissected PT-S1 at 24 hours showed that peroxisome proliferator-activated receptor alpha (PPARα) target genes were strongly upregulated. RNA-Seq in microdissected PT-S1 at 72 hours showed that cell cycle related genes were strongly upregulated. RNA-Seq in microdissected CCD at both 24 hours and 72 hours showed that cell cycle related genes were strongly upregulated.

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miRNA microarray of mice with unilateral ureteral obstruction

Project description:To find miRNAs that involve in renal epithelial transition and renal fibrosis, we performed unilateral ureteral obstruction of mice for 7 days. After that, we harvested kidneys, and performed microarray of miRNA. Contralateral kidneys without ureteral obstruction were used as controls. miRNAs were purified from kidneys with ureteral obstruction and contralateral kidneys without ureteral obstruction. Then microarray of miRNA was performed (n=4). miRNAs up-regulated in kidneys with ureteral obsctruction compared with contralateral kidneys were sorted. We performed unilateral ureteral obstruction of mice for 7 days, and harvested kidneys.

2012-12-05 | E-GEOD-42716 | biostudies-arrayexpress

Immune-mediated Tubule Atrophy Promotes Acute Kidney Injury to Chronic Kidney Disease Transition

Project description:Incomplete repair after acute kidney injury (AKI) is associated with progressive loss of tubular cell function and development of chronic kidney disease (CKD). Here, we compared the kidney single-cell transcriptomes from the mice subjected to either unilateral ischemia-reperfusion kidney injury with contralateral nephrectomy (IRI/CL-NX, in which tubule repair predominates) or unilateral IRI with contralateral kidney intact (U-IRI, in which fibrosis and atrophy predominates) to investigate the mechanism(s) underlying transition to CKD following AKI.

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miRNA microarray of mice with unilateral ureteral obstruction

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Lipid metabolism genes in contralateral unaffected breast and estrogen receptor status of breast cancer

Project description:The contralateral unaffected breast of women with unilateral breast cancer (cases) is a good model for defining subtype-specific risk since women with ER-negative index primaries are at high risk for subsequent ER-negative primary cancers. We performed random fine needle aspiration (rFNA) of the unaffected breasts of cases; samples from 30 subjects (15 ER-positive and 15 ER-negative cases matched for age, race and menopausal status), were used for Illumina expression array analysis. In this study, we have examined gene expression profiles in random fine needle aspirate (rFNA) samples from the contralateral breasts of women with new unilateral breast cancer (cases) to seek candidate panels of ER-specific risk biomarkers. On a discovery set of 30 women, we have identified gene expression differences in the contralateral breast that associate with ER+ or ER- index primary tumors.

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Arginase-1 is Required for Macrophage-Mediated Renal Tubule Regeneration

Project description:In this study, we compared the transcriptomes of the kidney subjected to unilateral IRI with contralateral nephrectomy (IRI/CL-NX) and the normal healthy control kidney at the single cell level to identify major cell types in the kidney and the differential transcriptional response during kidney repair following IRI.

2022-03-23 | GSE188966 | GEO

Single cell RNA-seq analyses of kidney repair and how maladaptive repair leads to kidney atrophy following ischemia/reperfusion injury

Project description:To better understand the pathogenesis of AKI-to-CKD transition and specifically the mechanism of kidney atrophy, we compared the kidney response to an identical time of ischemic injury between mice subjected to unilateral ischemia/reperfusion (U-IRI) to induce atrophy and those subjected to unilateral IRI with contralateral nephrectomy (IRI/CL-NX) to induce adaptive repair. We performed single cell RNA-sequencing (scRNA-seq) analyses on day 14 after injury to identify major cell types in the kidney and the differential transcriptional response between the models in each cell type.

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