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Identification of mechanistic chronic kidney disease biomarkers by comprehensive bulk RNA-seq transcriptomics and SWATH proteomics of the rat sub-total nephrectomy model of kidney fibrosis

ABSTRACT: Identification of mechanistic chronic kidney disease biomarkers by comprehensive bulk RNA-seq transcriptomics and SWATH proteomics of the rat sub-total nephrectomy model of kidney fibrosis

PROVIDER: PRJNA1063638 | ENA |

REPOSITORIES: ENA

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Identification of mechanistic chronic kidney disease biomarkers by comprehensive bulk RNA-seq transcriptomics and SWATH proteomics of the rat sub-total nephrectomy model of kidney fibrosis [RNA-Seq_1]

Project description:The rat sub-total nephrectomy (SNx) is a functional model of chronic kidney disease (CKD), where the main pathological driver is glomerular hypertension. Comprehensive transcriptomics and proteomics analyses on the rat SNx model were performed to identify biomarkers in plasma or urine that correlate with kidney disease and functional kidney loss. Kidneys were subjected to collagen I and III staining for fibrosis scoring, SWATH proteomics and bulk RNA-sequencing transcriptomics (RNA-seq), with SWATH also performed on plasma and urine. Differential expression analysis demonstrated significant dysregulation of genes and proteins involved in fibrosis, metabolism, and immune response in the SNx rats compared to controls. Gene ontology analysis of the intersecting genes and proteins from both studies demonstrated common biology between animal cohorts that reached the predefined kidney disease thresholds (serum creatinine >2-fold or proteinuria >3-fold increase over sham-operated). Thirteen significantly differential molecules were detected with consistent directional changes in both transcriptomics and proteomics datasets. These molecules were detected independently in kidney (both RNA and protein) and urine (protein only), but not in plasma. The bioinformatics analysis enabled the identification of mechanistic CKD biomarkers including lumican and collagen alpha-1(III) chain, whose co-expression has previously been both implicated in fibrosis and detected in urine in CKD patients.

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2025-01-01 | GSE253008 | GEO

Project description:Identification of mechanistic chronic kidney disease biomarkers by comprehensive bulk RNA-seq transcriptomics and SWATH proteomics of the rat sub-total nephrectomy model of kidney fibrosis [RNA-Seq_1]

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Identification of mechanistic chronic kidney disease biomarkers by comprehensive bulk RNA-seq transcriptomics and SWATH proteomics of the rat sub-total nephrectomy model of kidney fibrosis

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

2025-01-01 | GSE253009 | GEO

Transcriptomic changes in response to 5/6 or 1/3 nephrectomy

Project description:We report the changes in kidney mRNA abundance in response to 5/6 nephrectomy or 1/3 nephrectomy surgery when compared to sham operated controls.

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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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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.

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