Project description:To examine genome wide transcriptional changes in the heart of 5/6 nephrectomy CKD mice, we performed microarray analysis using the Affymetrix Clariom S array.
Project description:Rats (Sprague-Dawley) were allotted to subtotal nephrectomy (SNX) or sham (sham) operation. After 2 and 12 weeks the experiment was terminated. RNA was isolated from small pieces of the hearts.
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.
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.
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.
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.
Project description:The mechanism driving the remarkable ability of the remaining kidney to enlarge and increase its function following removal of its contralateral pair remains elusive. To explore the pathways driving compensatory renal hypertrophy, comprehensive RNA-seq transcriptional studies in the kidneys of mice undergoing hypertrophy 24, 48 and 72 hours following nephrectomy have been undertaken and compared with mice undergoing sham operations. The results reveal substantial time dependent enhancement of cholesterol biosynthesis pathways, increases in mitochondrial gene expression and cell cycle perturbations. Single nuclei RNA-Seq 24 hours post nephrectomy was used to further explore cholesterol biosynthesis signature and its driver SREBP2. In a cell specific manner, snRNA-seq demonstrated that SREBP2 activity increases in proximal tubules and medullary thick ascending limb and is responsible for cell size regulation following IGF-1 stimulation. These results suggest a previously undescribed role for SREBP2 in the mechanism underlying compensatory renal hypertrophy. This mechanism might be amenable to therapeutic manipulation to enhance kidney size and function.
Project description:We performed expression profiling by RNA-Seq on C57BL6 mice at 10 weeks of age. Mice were divided into four groups and either underwent partial nephrectomy (PNx) or sham (CTR) operation, and were adminstered either pNaKtide (NaK) or GFP.