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Identification of NRSF/REST genomic binding sites in conditions of basal and increased SF-1 dosage in the H295R adrenocortical tumor cell line

ABSTRACT: The goal of this study was to identify genomic binding sites of the NRSF/REST transcription factor under conditions of basal and increased SF-1 dosage in the H295R human adrenocortical tumor cell line.

ORGANISM(S): Homo sapiens

PROVIDER: GSE49014 | GEO | 2013/08/01

SECONDARY ACCESSION(S): PRJNA212690

REPOSITORIES: GEO

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Identification of NRSF/REST genomic binding sites in conditions of basal and increased SF-1 dosage in the H295R adrenocortical tumor cell line

Project description:The goal of this study was to identify genomic binding sites of the NRSF/REST transcription factor under conditions of basal and increased SF-1 dosage in the H295R human adrenocortical tumor cell line. 4 samples: input DNA (2 replicates) - NRSF/REST ChIP basal SF-1 dosage - NRSF/REST ChIP increased SF-1 dosage

2013-08-01 | E-GEOD-49014 | biostudies-arrayexpress

Expression data from H295R cells where NRSF/REST or SF-1 were knocked down

Project description:SF-1 is a nuclear receptor transcription factor playing a key role in adrenogonadal development and in adrenocortical tumorigenesis when overexpressed. NRSF/REST is a transcriptional repressor that represses expression of neuronal genes in non-neural tissues. Some data suggest that SF-1 and NRSF/REST can functionally interact in adrenocortical cancer cells. We studied gene expression profiles using Affymetrix microarrays in the H295R/TR SF-1 adrenocortical cancer cell line. In this cell line, SF-1 expression can be increased in a doxycycline-dependent manner (Mol. Endocrinol. 21: 2968–2987, 2007). The effects of a control siRNA and sRNAs specific for SF-1 and for NRSF/REST (in basal or increased SF-1 expression conditions) on gene expression were measured.

2013-08-01 | GSE43033 | GEO

Expression data from H295R cells where NRSF/REST or SF-1 were knocked down

2013-08-01 | E-GEOD-43033 | biostudies-arrayexpress

Identification of SF-1 genomic binding sites in conditions of basal and increased dosage in the H295R adrenocortical tumor cell line

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Identification of chromatin regulatory sites in conditions of basal and increased SF-1 dosage in the H295R adrenocortical tumor cell line

2013-08-01 | GSE44221 | GEO

Identification of chromatin regulatory sites in conditions of basal and increased SF-1 dosage in the H295R adrenocortical tumor cell line

Project description:The goal of this study was to identify chromatin regulatory sites by FAIRE-seq under conditions of basal and increased dosage of transcription factor SF-1 in the H295R human adrenocortical tumor cell line. 4 samples: input DNA in basal SF-1 expression conditions - FAIRE-seq in basal SF-1 expression conditions - input DNA in SF-1 overexpression conditions - FAIRE-seq in SF-1 overexpression conditions

2013-08-01 | E-GEOD-44221 | biostudies-arrayexpress

Identification of SF-1 genomic binding sites in conditions of basal and increased dosage in the H295R adrenocortical tumor cell line

Project description:The goal of this study was to identify genomic binding sites of the SF-1 nuclear receptor under conditions of basal and increased dosage in the H295R human adrenocortical tumor cell line. 14 samples: input DNA (2 replicates) - SF-1 ChIP Millipore antibody basal SF-1 dosage (3 replicates) - SF-1 ChIP Millipore antibody increased SF-1 dosage (3 replicates) - SF-1 ChIP Perseus antibody basal SF-1 dosage (3 replicates) - SF-1 ChIP Perseus antibody increased SF-1 dosage (3 replicates)

2013-08-01 | E-GEOD-44220 | biostudies-arrayexpress

Expression data from H295R cells in basal conditions/overexpressing SF-1

Project description:SF-1 is a nuclear receptor transcription factor playing a key role in adrenogonadal development and in adrenocortical tumorigenesis when overexpressed. We studied gene expression profiles using Affymetrix microarrays in the H295R/TR SF-1 adrenocortical cancer cell line, where SF-1 expression can be increased in a doxycycline-dependent manner (Mol. Endocrinol. 21: 2968–2987, 2007)

2013-08-01 | GSE43032 | GEO

Expression data from H295R cells in basal conditions/overexpressing SF-1

Project description:SF-1 is a nuclear receptor transcription factor playing a key role in adrenogonadal development and in adrenocortical tumorigenesis when overexpressed. We studied gene expression profiles using Affymetrix microarrays in the H295R/TR SF-1 adrenocortical cancer cell line, where SF-1 expression can be increased in a doxycycline-dependent manner (Mol. Endocrinol. 21: 2968–2987, 2007) H295R/TR SF-1 cells were cultured either in basal conditions or with doxycycline (Dox) added to the culture medium for 72 hours. RNA was extracted and hybridized to HG-U133 Plus 2.0 Affymetrix microarrays.

2013-08-01 | E-GEOD-43032 | biostudies-arrayexpress

Identification of genes regulated by overexpressed SF-1 in human adrenocortical cells

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

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