H295RAII3h
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
SUBMITTER: Maria Plonczynski
PROVIDER: E-GEOD-1030 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Publications
Angiotensin II early regulated genes in H295R human adrenocortical cells.
Romero Damian G DG Plonczynski Maria M Vergara Gaston R GR Gomez-Sanchez Elise P EP Gomez-Sanchez Celso E CE
Physiological genomics 20040901 1
Evidence for the dysregulation of aldosterone synthesis in cardiovascular pathophysiology has renewed interest in the control of its production. Cellular mechanisms by which angiotensin II (ANG II) stimulates aldosterone synthesis in the adrenal zona glomerulosa are incompletely understood. To elucidate the mechanism of intracellular signaling by ANG II stimulation in the adrenal, we have studied immediate-early regulated genes in human adrenal H295R cells using cDNA microarrays. H295R cells wer ...[more]
Similar Datasets
Project description:H295R human adrenocortical cells treated with or without angiotensin II (100 nM) for 3 hr. Keywords = adrenal angiotensin aldosterone Keywords: parallel sample
2004-11-19 | GSE1030 | GEO
Project description:Angiotensin II (Ang-II) regulates adrenal steroid production and gene transcription through several signaling pathways. Changes in gene transcription occur within minutes after Ang-II stimulation, causing an acute increase in aldosterone production and subsequent increase in the overall capacity to produce aldosterone. Our goal was to compare the Ang-II regulation of early gene expression and confirm the upregulation of selected genes using quantitative real-time RT-PCR (qPCR) across three species: human, bovine, and rat. Experiment Overall Design: Microarray analysis was performed using samples from control and Ang-II-(10 nM) treated (1 hour) cells from human adrenocortical tumor cell line H295-R, and primary adrenal glomerulosa cells from bovine and rat, applied respectively to human HG-133 + 2 , bovine, and rat 230-2 Affymetrix chips. qPCR was performed to confirm upregulation of selected genes using mRNA. Dye Swap was not used. Human samples (H295R) include 3 replicates of Basal (controls) and 3 repeats of Angiotensin II samples. Human H295R cells include also a group of cycloheximide (protein synthesis blocker) and angiontensin II + cycloheximide in order to check if the genes were direct targets of angiotensin II.
2008-11-06 | E-GEOD-8442 | biostudies-arrayexpress
Project description:SF-1, a transcription factor belonging to the nuclear receptor superfamily, has a pivotal role for adrenogonadal development in humans and mice. A constant feature of childhood adrenocortical tumors (ACT) is SF-1 amplification and overexpression. Using an inducible cellular system, here we show that SF-1 overexpression increases human adrenocortical cell proliferation through opposing effects on cell cycle and apoptosis. SF-1 overexpression also selectively modulates steroidogenesis, reducing cortisol and aldosterone secretion. We identified a novel pro-apoptotic factor for adrenocortical cells, NOV/CCN3, whose levels are significantly reduced by SF-1 overexpression in human adrenocortical cells and are also reduced in primary adrenal tumors. Moreover, Sf-1 overexpression triggers adrenocortical hyperplasia and tumor formation in mice. These tumors express gonadal markers and activated Stat3. Our studies reveal the critical role of SF-1 gene dosage for adrenocortical tumorigenesis and constitute a rationale for the development of drugs targeting SF-1 transcriptional activity for ACT therapy. Keywords: differential expression, transcription factor Gene expression profiles were analyzed in two different H295R TR/SF-1 WT clones overexpressing SF-1 in a tetracycline-regulated fashion cultured in basal conditions or after three days of doxycycline treatment. For each condition, two biological replicates were examined. Array #22354 Clone #1 replicate 1 basal Cy3/Dox Cy5 Array #22416 Clone #1 replicate 2 basal Cy5/Dox Cy3 Array #22446 Clone #2 replicate 1 basal Cy3/Dox Cy5 Array #22447 Clone #2 replicate 2 basal Cy5/Dox Cy3
2010-06-11 | E-GEOD-5911 | biostudies-arrayexpress
Project description:The mineralocorticoid hormone, aldosterone, is secreted by the adrenal zona glomerulosa (ZG) in response to high plasma K+ and hypovolemia and promotes renal Na+ reabsorption and K+ secretion. Hence, the regulation of aldosterone secretion is critical for the control of ion homeostasis and blood pressure. While the kinase pathways regulating aldosterone production are well studied, little is known about the involved phosphatases. Using the human adrenocortical carcinoma cell line NCI-H295R, we found that the mRNA expression of the aldosterone synthase increases significantly within 6 hours after K+ exposure. This increase was inhibited in a dose-dependent manner by the calcineurin inhibitors tacrolimus and cyclosporine A. Calcineurin (Cn) is a serine-threonine-specific, Ca2+ and CaM-activated protein phosphatase essential for lymphocyte, neuronal and cardiac function. The physiologic role of Cn in the ZG cells and the molecular pathways by which Cn regulates the K+-stimulated secretion of aldosterone are unknown. To answer these questions, we stimulated NCI-H295R cells with K+ with or without Tacrolimus and studied the phosphorylation pattern of cytoplasmic proteins by phospho-proteomics. We generated a map of the changes in the Ser/Thr phosphorylation in adrenocortical cells upon stimulation with K+ and identified Cn-regulated phosphoproteins.
2023-05-25 | PXD027856 | Pride
Project description:AngiotensinII (AngII) binds to the type I angiotensin receptor in the adrenal cortex to initiate a cascade of events leading to the production of aldosterone, a master regulator of blood pressure and volume. While the key signaling pathways, transcription factors, and steroidogenic enzymes necessary for adrenocortical production have been identified, surprisingly little is known about post-transcriptional regulation of this process. To investigate this question, we performed a high-resolution RNA-seq time course of the AngII stimulation response in a steroidogenic human cell line (H295R). We identified twelve temporally distinct groups of gene expression responses important for various steps of aldosterone production. AngII response kinetics for many of these mRNAs revealed a coordinated increase in both synthesis and decay. These findings were validated in primary human adrenocortical cells stimulated ex vivo with AngII or ACTH.
2021-06-01 | GSE163801 | GEO
Project description:SF-1, a transcription factor belonging to the nuclear receptor superfamily, has a pivotal role for adrenogonadal development in humans and mice. A constant feature of childhood adrenocortical tumors (ACT) is SF-1 amplification and overexpression. Using an inducible cellular system, here we show that SF-1 overexpression increases human adrenocortical cell proliferation through opposing effects on cell cycle and apoptosis. SF-1 overexpression also selectively modulates steroidogenesis, reducing cortisol and aldosterone secretion. We identified a novel pro-apoptotic factor for adrenocortical cells, NOV/CCN3, whose levels are significantly reduced by SF-1 overexpression in human adrenocortical cells and are also reduced in primary adrenal tumors. Moreover, Sf-1 overexpression triggers adrenocortical hyperplasia and tumor formation in mice. These tumors express gonadal markers and activated Stat3. Our studies reveal the critical role of SF-1 gene dosage for adrenocortical tumorigenesis and constitute a rationale for the development of drugs targeting SF-1 transcriptional activity for ACT therapy. Keywords: comparative gene expression Gene expression profiles were analyzed by two-color microarrays in transgenic mice from line #56 heterozygous or homozygous for the transgene, male or female and of different ages. Profiles from each transgenic mouse were directly compared to a sex- and age-matched wild-type littermate. For each experimental point, two technical replicates (dye-swaps) were examined. Array # Age Sex Transgene copy # Cy3 Cy5 16682 10 days M 1 WT transgenic 16479 10 days M 1 transgenic WT 16683 10 days M 1 WT transgenic 16625 10 days M 1 transgenic WT 16685 10 days F 1 WT transgenic 16680 10 days F 1 transgenic WT 16516 4 months M 2 WT transgenic 16452 4 months M 2 transgenic WT 16517 4 months M 2 WT transgenic 16453 4 months M 2 transgenic WT 16518 4 months F 2 WT transgenic 16475 4 months F 2 transgenic WT
2010-06-12 | E-GEOD-5912 | biostudies-arrayexpress
Project description:Transcription factor 21 (TCF21) directly binds and regulates SF1 in tumor and normal adrenocortical cells, and both are involved in the development and steroidogenesis of the adrenal cortex. TCF21 is a tumor suppressor gene and its expression is reduced in malignant tumors. In adrenocortical tumors, it is less expressed in adrenocortical carcinomas (ACC) than in adrenocortical adenomas (ACA) and normal tissue. However, a comprehensive analysis to identify TCF21 targets have not yet been conducted in any type of cancer. In this study, we performed Chromatin Immunoprecipitation and Sequencing (ChIP-Seq) in adrenocortical carcinoma cell line (NCI-H295R) overexpressing TCF21, with the aim of identifying TCF21 new targets. The five most frequently identified sequences corresponded to the PRDM7, CNTNAP2, CACNA1B, PTPRN2 and KCNE1B genes. Validation experiments showed that, in NCI-H295R cells, TCF21 regulates gene expression positively in PRDM7 and negatively in CACNA1B. Recently, it was observed that the N-type calcium channel v2.2 (Cav2.2) encoded by CACNA1B gene is important in Angiotensin II signal transduction for corticosteroid biosynthesis in NCI-H295R adrenocortical carcinoma cells. Indeed, TCF21 inhibits CACNA1B and Cav2.2 expression in NCI-H295R. In addition, in a cohort of 55 adult patients with adrenocortical tumor, CACNA1B expression was higher in ACC than ACA, and was related to poor disease-free survival in ACC patients. These results suggest a mechanism of steroidogenesis control by TCF21 in adrenocortical tumor cells, in addition to the control observed through SF1 inhibition. Importantly, steroid production could impair tumor immunogenicity, contributing to the immune resistance described in adrenal cancer.
2022-06-30 | GSE179308 | GEO
Project description:H295R human adrenocortical cells were cultured in H295R complete media containing DMEM:F12 (1:1) supplemented with 2% Ultroser G (Biosepra, Villeneuve-la-Garenne, France), ITS-Plus (Discovery Labware, Bedford, MA) and an antibiotic/antimycotic mixture (Invitrogen, Carlsbad, CA) in 175 cm2 flasks until subconfluente. Media was replaced with 40 ml fresh media containing different agents and cultured for 3 h. Treatments: Angiotensin II (100 nM), potassium (16 mM) and forskolin (10 uM). Total RNA extracted with RNAesy Midi Kit (Qiagen) with on-column DNase digestion Keywords: Agent response
2007-07-09 | GSE5553 | GEO
Project description:H295R human adrenocortical cells were cultured in H295R complete media containing DMEM:F12 (1:1) supplemented with 2% Ultroser G (Biosepra, Villeneuve-la-Garenne, France), ITS-Plus (Discovery Labware, Bedford, MA) and an antibiotic/antimycotic mixture (Invitrogen, Carlsbad, CA) in 175 cm2 flasks until subconfluente. Media was replaced with 40 ml fresh media containing different agents and cultured for 3 h. Treatments: Angiotensin II (100 nM), potassium (16 mM) and forskolin (10 uM). Total RNA extracted with RNAesy Midi Kit (Qiagen) with on-column DNase digestion Experiment Overall Design: Controls, n=2 Experiment Overall Design: Angiotensin=1 Experiment Overall Design: Potassium=1 Experiment Overall Design: Forskolin=1 Experiment Overall Design: Same biological sample used for GPL96 and GPL97
2008-06-13 | E-GEOD-5553 | biostudies-arrayexpress
Project description:Angiotensin II (Ang-II) regulates adrenal steroid production and gene transcription through several signaling pathways. Changes in gene transcription occur within minutes after Ang-II stimulation, causing an acute increase in aldosterone production and subsequent increase in the overall capacity to produce aldosterone. Our goal was to compare the Ang-II regulation of early gene expression and confirm the upregulation of selected genes using quantitative real-time RT-PCR (qPCR) across three species: human, bovine, and rat. Keywords: species comparison, adrenal glomerulosa, microarray, angiotensin II
2007-07-18 | GSE8442 | GEO