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MicroRNA (miRNA) expression of IMCD tubule suspension

ABSTRACT: miRNA plays a role as post-transcriptional regulator. However, miRNAs in the kidney collecting duct cell have not been well understood. So we aimed to profile miRNAs in the kidney inner medullary collecting duct (IMCD) cells, and to identify the vasopressin-responsive miRNAs in the kidney IMCD cells. The microarray assay revealed that relative expression of miRNAs in the kidney IMCD cells was changed by desmopressin (dDAVP) stimulation.

ORGANISM(S): synthetic construct Rattus norvegicus

PROVIDER: GSE58693 | GEO | 2014/06/21

SECONDARY ACCESSION(S): PRJNA253188

REPOSITORIES: GEO

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MicroRNA (miRNA) expression of IMCD tubule suspension

Project description:miRNA plays a role as post-transcriptional regulator. However, miRNAs in the kidney collecting duct cell have not been well understood. So we aimed to profile miRNAs in the kidney inner medullary collecting duct (IMCD) cells, and to identify the vasopressin-responsive miRNAs in the kidney IMCD cells. The microarray assay revealed that relative expression of miRNAs in the kidney IMCD cells was changed by desmopressin (dDAVP) stimulation. Fresh IMCD tubules were prepared from rat kidney and incubated in the medium in the absence or presence of dDAVP (1 nM, 2 h). Total RNA purified from IMCD tubules was used to analyze miRNA expression by GeneChipM-BM-. miRNA 3.0 Array (Affymetrix).

2014-06-21 | E-GEOD-58693 | biostudies-arrayexpress

Vasopressin (AVP) and the V2R specific agonist dDAVP 7 day infusion into Aquaporin 1 knockout animals

Project description:Vasopressin, the antidiuretic hormone, acts on the renal collecting duct. In this experiment both vasopressin (AVP) and the V2R specific agonist dDAVP were infused into Aquaporin 1 knockout animals for 7 days. The aim of the experiment was to identify genes increased by vasopressin receptors in the renal medullary collecting ducts, in the absence of an increase in renal medullary osmolarity (the AQP1 knockouts are concentrating mechanism knockouts). All experiments used inner medulla tissue for the RNA isolation. Hybridizations were performed that compared kidney inner medulla total RNA from three control mice against kidney medulla total RNA from 3 mice infused with either arginine vasopressin (AVP) or des-amino-D-arginine vasopressin (dDAVP).

2007-10-06 | E-GEOD-5953 | biostudies-arrayexpress

Vasopressin (AVP) and the V2R specific agonist dDAVP 7 day infusion into Aquaporin 1 knockout animals

2007-10-07 | GSE5953 | GEO

Comprehensive Proteomic Profiling of Nuclear Fractions from Native Renal Inner Medullary Collecting Duct Cells

Project description:Regulation of renal water excretion is dependent on control of the molecular water channel aquaporin‐2 by the peptide hormone vasopressin in renal collecting duct cells. The control is in part due to the regulation of transcription of the Aqp2 gene and other genes by vasopressin. A systems biology‐based approach to understanding transcriptional control in renal collecting duct cells depends on knowledge of what transcription factors and other regulatory proteins are present in the cells' nucleus. The goal of this paper is to report comprehensive proteomic profiling of nuclear proteins in native inner medullary collecting duct (IMCD) cells of the rat. Multi‐dimensional separation procedures and state‐of‐the art protein mass spectrometry allowed the high stringency identification of a total of 5105 proteins in nuclear pellet (NP) and nuclear extract (NE) fractions of biochemically isolated rat IMCD cells (URL: https://helixweb.nih.gov/ESBL/Database/IMCD_Nucleus/)*. The analysis identified 369 transcription factor proteins out of the 1371 transcription factors coded by the rat genome. The analysis added 1898 proteins to the recognized proteome of rat IMCD cells, now amounting to 7003 unique proteins. Analysis of samples treated with the vasopressin analog dDAVP (1 nM for 30min) or its vehicle revealed 99 proteins in the NP fraction and 88 proteins in the NE fraction with significant changes in spectral counts (Fisher Exact Test, P<0.005). Among those altered by vasopressin were 7 distinct histone proteins all of which showed decreased abundance in the NP fraction, consistent with a possible effect of vasopressin to induce chromatin remodeling.

2018-10-24 | PXD002680 | Pride

Transcription profiling of rat inner medullary collecting duct

Project description:Identification of gene expressed in the enriched inner medullary collecting duct cells in rat. Experiment Overall Design: Rat inner medullary collecting duct (IMCD) cells were isolated from 7 male Sprage-Dawley rats by collagenase and hyaluronidase digestion and follow by low speed centrifugation. The non-IMCD cells were collected by centrifugation of supernatant of enriched IMCD samples. Experiment Overall Design: Total RNA about 3 ug were used per microarray (Rat 230 2.0 Genechip array). Experiment Overall Design: The experiments were repeat 3 times (3 pairs of IMCD VS non-IMCD)

2008-06-15 | E-GEOD-7891 | biostudies-arrayexpress

Transcriptome changes in response to dDAVP stimulation in CRISPR/Cas9 mediated Camk2d knock-out mpkCCD cells

Project description:The Ca2+/CaM-dependent protein kinase 2-delta (CAMK2D) has been proposed to be involved in vasopressin signaling in the renal collecting duct, which controls water and salt excretion by the kidney. RNA sequancing and quantitative proteomics analyses identified the expression of multiple CAMK2 isoforms, with CAMK2D being the most abundant in collecting duct cells. To investigate the role of CAMK2D in regulating RNA expression in response to vasopressin signaling, the transcriptome of CRISPR/Cas9-mediated Camk2d knock-out mpkCCD cells was profiled using RNA-Seq in the presence of vasopressin analogue dDAVP.

2023-06-01 | GSE228762 | GEO

Time-course transcriptome profiling in vasopressin-treated mouse kidney collecting duct mpkCCD

Project description:Purpose: The goal of this study is to identify vasopressin-regulated genes in mouse kidney collecting duct cell line mpkCCD. To explore dynamic regulation of vasoressin-mediated transcriptional regulation, transcriptome of vasopressin-treated cells at four different time points (3h, 6h, 12h, and 24h) were profiled and analyzed. Methods: Total RNAs were isolated from vasopressin-treated mpkCCD cells at different time points (3h, 6h, 12h, and 24h). Three replicates for vehicle- or vasopressin-treated group were generated at each tested time point. cDNA libraries were prepared using a Nextera DNA library preparation protocol. The sequence reads from Illumina HiSeq3000 platform were qualified and quantified at the transcript level using Salmon (0.14.1). Differential expression analysis were performed using edgeR. Results: mRNA profiles of mouse kidney collecting duct mpkCCD cells treated with vasopressin analog (dDAVP) for four different time potins (3h, 6h, 12h, and 24h) were generated using an optimized RNA-Seq workflow. Transcript level quantification using a pseudo-alignment quantification method (Salmon) was performed to calculate transcript abundance in each sample. Then differential expression analysis identified the differentially expressed genes including Aqp2 gene at each time point comparison (dDAVP vs vehicle, FDR < 0.05). In addition, several new vasopressin-responsive genes that have not been elucidated before were identified. Conclusions: This study revealed dynamic changes of vasopressin-responsive gene expression within 24 hours in mouse kidney collecting duct cells. The results from time-course transcriptome profiling identified the known vasopressin-responsive genes and several novel gene that are regulated temporally.

2021-07-22 | GSE163566 | GEO

Transcriptional Changes when TGF-beta type II receptor is deleted

Project description:We looked at transcriptional changes in immortalized IMCD (inner medullary collecting duct cells) derived from Tgfbr2floxed mice, described in detail in manuscript PMID: 20576806

2021-11-06 | GSE188317 | GEO

Osmolality as a major regulator of the transcriptome and metabolome in kidney collecting duct cells

Project description:We hypothesized that altered extracellular osmolality per se could affect the transcriptome of the kidney inner medullary collecting duct (IMCD) cells, and hence it might change renal tubular function. The data sets of transcriptomics were incorporated into the "omic" data sets of metabolomics. Primary cultured IMCD cells of rat kidney were grown in hyperosmolar culture medium (640 mOsm/KgH2O) for 4 d, and then the cells were cultured in the medium with either reduced (300 mOsm/KgH2O) or the same osmolality for 1 or 2 d more.

2012-02-09 | GSE35598 | GEO

Expression data from mouse collecting duct cell, mpkCCD, in response to a peptide hormone vasopressin analog, dDAVP

Project description:Vasopressin is the major hormone that regulates renal water excretion. It does so by binding to a receptor in renal collecting duct cells, triggering signaling pathways that ultimately regulate the abundance, location, and activity of the water channel protein aquaporin 2. We took an advantage of quantitative large scale proteomic technologies and oligonucleotide microarrays to quantify steady state changes in protein and transcript abundances in response to vasopressin in a collecting duct cell line, mpkCCD clone 11 (Yu et al. PNAS 2009, 106:2441-2446). This cell line originally developed by Alan Vandewalle’s group recapitulates vasopressin-mediated AQP2 expression and phosphorylation as seen in native colleting duct cells. The mpkCCD cells were grown on membrane supports to permit polarization. Once transepithelial resistance reached 5kohm per centimeter square and higher, the cells were exposed to the vasopressin V2 receptor analog, dDAVP, at a physiological concentration, 0.1nM, for 5 days. Control experiments were done with cells exposed to vehicle alone. Total RNA was harvested and processed for transcript expression analysis using Affymetrix GeneChip Mouse Genome 430 2.0 Arrays. Each experimental treatment, vehicle and dDAVP, was repeated 3 times.

2010-12-09 | E-GEOD-19938 | biostudies-arrayexpress

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