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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of Rattus norvegicus pancreatic beta cell line expressing HNF1b, HNF4a2 or HNF6

ABSTRACT: This SuperSeries is composed of the following subset Series:; GSE1589: Targets of HNF1b, HNF4a2 and HNF6 in INS-1 cells; GSE1590: Targets of HNF1b mutants in INS-1; GSE1591: INS-1 cell lines (FLP-In T-REx) Experiment Overall Design: Refer to individual Series

ORGANISM(S): Rattus norvegicus

SUBMITTER: Ludger Klein-Hitpass

PROVIDER: E-GEOD-6428 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Pattern of genes influenced by conditional expression of the transcription factors HNF6, HNF4alpha and HNF1beta in a pancreatic beta-cell line.

Thomas Heike H Senkel Sabine S Erdmann Silke S Arndt Tanja T Turan Gülüzar G Klein-Hitpass Ludger L Ryffel Gerhart U GU

Nucleic acids research 20041101 19

Using the rat insulinoma cell line INS-1 we generated beta-cell clones that are most efficient for gene transfer, as they contain an FRT site for Flp recombinase-mediated, site-directed integration of a single copy transgene. Therefore, the gene-of-interest can be introduced by DNA transfection without the need to select individual cell clones. Additionally, the clones contain the tetracycline repressor allowing tetracycline induction of the transgene. By oligonucleotide microarray we define the ...[more]

PMID: 15520459

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Targets of HNF1b, HNF4a2 and HNF6 in INS-1 cells

Project description:A rat insulinoma cell line (INS-1) was generated that contains a FRT site for FLP recombinase mediated site specific integration of specific genes. In addition, the line contains the tetracycline repressor allowing tetracycline (tet) induction of the introduced gene. By comparing the gene expression profiles of uninduced and tet-induced cells, target genes of introduced transcription factors HNF1b, HNF4a2, and HNF6 (onecut1) were identified. Two different clones containing the same transcription factor were analyzed in the non-induced and tet-induced (24 h) state. Keywords: ordered

2004-11-05 | GSE1589 | GEO

Identification of Hnf6 binding sites in male and female mouse liver

Project description:∼40,000 HNF6 binding sites were identified in mouse liver chromatin, including several thousand sites showing significant differences in level of HNF6 binding between male and female mouse liver. These sex-biased HNF6 binding sites showed strong enrichment for sex-biased DNase hypersensitive sites and for proximity to genes showing local sex-biased chromatin marks and a corresponding sex-biased expression. ~90% of genome-wide CUX2 binding sites identified previously in female mouse liver (Conforto TL, Zhang Y, Sherman J, Waxman DJ., Mol Cell Biol. 2012;32(22):4611-4627) were also bound by HNF6, giving evidence for genome-wide competition between HNF6 and CUX2 for chromatin binding in female mouse liver. These HNF6/CUX2 common binding sites were enriched for genomic regions more accessible in male than in female mouse liver chromatin, and showed strongest enrichment for male-biased genes, suggesting HNF6 displacement by CUX2 as a mechanism to explain the observed CUX2 repression of male-biased genes in female liver. However, HNF6 binding was sex-independent at a majority of its binding sites, and peak regions of HNF6 binding were frequently associated with co-binding by multiple other liver transcription factors, consistent with HNF6 playing a global regulatory role in both male and female liver.

2015-07-28 | GSE60014 | GEO

Pathophysiological role of hepatocyte nuclear factor 6 (HNF6) during cholestatic liver injury

Project description:Animal models of parenchymal liver injury by bile duct ligation (BDL) and all forms of liver diseases including neonatal hepatitis and clinical obstructive cholangiopathies such as biliary atresia have the pathological features of cholestasis and liver dysfunction. Hepatocyte nuclear factors 6 (HNF6) is important to the transcriptional regulation, expression and function of essential hepatic genes involved in the differentiated as well as the adaptive response to liver injury. Using HNF6 conditional knock out mice where HNF6 is functionally deleted in the liver, we established that HNF6 is required for proper liver function of cholesterol clearance, improvement of cholestasis and hepatocyte regeneration. Enhancing HNF6 expression in wild type mice also diminished hepatic apoptosis and fibrosis. In this proposal, we propose to further characterize the biological function of HNF6 by testing the HYPOTHESIS that HNF6 direct transcriptional regulation of antiapoptotic and antifibrotic pathways contributes to hepatoprotection during bile duct injury. This hypothesis will be tested in two specific aims.

2016-10-06 | GSE80498 | GEO

Identification of Hnf6 binding sites in male and female mouse liver

2015-07-28 | E-GEOD-60014 | biostudies-arrayexpress

Role of transcription factor ONECUT1 (HNF6) during in vitro pancreatic differentiation of human pluripotent stem cells [RNA-seq]

Project description:We have identified HNF6 as an essential transcription factor for endocrine pancreatic development. HNF6 binds to and possibly regulates other isletogenesis transcription factors, driving endocrine differentiation. RNA sequencing of control and HNF6-depleted hESC during in vitro pancreatic differentiation will help to understand the regulatory mechanisms during cell fate decisions.

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Role of transcription factor ONECUT1 (HNF6) during in vitro pancreatic differentiation of human pluripotent stem cells [ATAC-seq]

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2021-10-27 | GSE131816 | GEO

Role of transcription factors ONECUT1 (HNF6), GATA6 and NKX6.1 during in vitro pancreatic differentiation of human pluripotent stem cells.

Project description:We have identified HNF6 as an essential transcription factor for endocrine pancreatic development. HNF6 binds to and possibly regulates other isletogenesis transcription factors, driving endocrine differentiation. ChIP sequencing of HNF6 as well as GATA6 and NKX6.1 during in vitro pancreatic differentiation will help to understand the regulatory mechanisms during cell fate decisions.

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Chromatin immunoprecipitation of wild type and Foxa2 knock-out mouse liver using anti-HNF6 anitbodies to test whether Foxa2 inhibits HNF6-mediated transcription in the liver

Project description:The aim of this study was to test, in vivo, if Foxa2 inhibits HNF6-mediated transcription in the liver. We utilized hepatocyte-specific gene ablation of Foxa2 and the Mouse PromoterChip BCBC 3.0 and Mouse PancChip 5.0 cDNA microarrays to investigate HNF6 binding to its target promoters in vivo in the presence or absence of Foxa2. For the mouse promoter microarray analysis, chromatin immunoprecipitation using anti-HNF6 antibodies was performed on chromatin isolated from Foxa2loxP/loxP Alfp.Cre and control mouse livers. Along with sheared genomic DNA (common reference), the immunoprecipitated DNA was amplified, labeled and hybridized to the Mouse PromoterChip BCBC 3.0. For microarray analysis of gene expression, liver RNAs were isolated from three Foxa2loxP/loxP Alfp.Cre and three control mice. RNAs were reverse transcribed, labeled, and hybridized to the Mouse PancChip 5.0. Overall, our studies demonstrate that HNF6 binds to and regulates its target promoters in vivo in the presence and absence of Foxa2 and that the expression levels of HNF6 targets are not influenced by Foxa2.

2007-09-14 | E-CBIL-36 | biostudies-arrayexpress