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Transcription Factors GATA4 and HNF4A Control Distinct Aspects of Intestinal Homeostasis in Conjunction With the Transcription Factor CDX2

ABSTRACT: To determine whether the intestine-restricted transcription factor (TF) CDX2 functionally interacts with the endoderm-wide TF HNF4A, we crossed tissue-specific conditional Cdx2 and Hnf4a knockout mice to generate compound mutant mice. We used RNA-sequencing to profile gene expression changes in compound mutant mice compared to control mice. The compound mutant mice had a significantly worse phenotype than either single mutant, and gene expression was significantly perturbed in compound mutants compared to control mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE62633 | GEO | 2014/12/08

SECONDARY ACCESSION(S): PRJNA264576

REPOSITORIES: GEO

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Transcription Factors GATA4 and HNF4A Control Distinct Aspects of Intestinal Homeostasis in Conjunction With the Transcription Factor CDX2

Project description:To determine whether the intestine-restricted transcription factor (TF) CDX2 functionally interacts with the endoderm-wide TF HNF4A, we crossed tissue-specific conditional Cdx2 and Hnf4a knockout mice to generate compound mutant mice. We used RNA-sequencing to profile gene expression changes in compound mutant mice compared to control mice. The compound mutant mice had a significantly worse phenotype than either single mutant, and gene expression was significantly perturbed in compound mutants compared to control mice. Total RNA isolated from control and compound mutant (Hnf4a-del;Cdx2-del) jejunal mouse intestinal epithelium was prepared for sequencing using the TruSeq RNA Sample Preparation Kit (Illumina) according to the manufacturer's instructions. 75-base-pair single-end reads were sequenced on an Illumina NextSeq 500 instrument. The data include 2 independent biological replicates per genotype.

2014-12-08 | E-GEOD-62633 | biostudies-arrayexpress

Cdx2 transcription factor binding in intestinal villus and gene expression profiling in Cdx mutant mice

Project description:We conditionally inactivated mouse Cdx2, a dominant regulator of intestinal development, and mapped its genome occupancy in adult intestinal villi. Although homeotic transformation, observed in Cdx2-null embryos, was absent in mutant adults, gene expression and cell morphology were vitally compromised. Lethality was accelerated in mice lacking both Cdx2 and its homolog Cdx1, with exaggeration of defects in crypt cell replication and enterocyte differentiation. Cdx2 occupancy correlated with hundreds of transcripts that fell but not with equal numbers that rose with Cdx loss, indicating a predominantly activating role at intestinal cis-regulatory regions. Integrated consideration of a mutant phenotype and cistrome hence reveals the continued and distinct requirement in adults of a master developmental regulator that activates tissue-specific genes. Cdx2 ChIP-seq in mouse villus, and gene expression data from Cdx1, Cdx2 and compound knockout mouse intestine

2011-04-13 | E-GEOD-24633 | biostudies-arrayexpress

Transcription factors GATA4 and HNF4A control distinct aspects of intestinal homeostasis in conjunction with transcription factor CDX2.

Project description:Distinct groups of transcription factors (TFs) assemble at tissue-specific cis-regulatory sites, implying that different TF combinations may control different genes and cellular functions. Within such combinations, TFs that specify or maintain a lineage and are therefore considered master regulators may play a key role. Gene enhancers often attract these tissue-restricted TFs, as well as TFs that are expressed more broadly. However, the contributions of the individual TFs to combinatorial regulatory activity have not been examined critically in many cases in vivo. We address this question using a genetic approach in mice to inactivate the intestine-specifying and intestine-restricted factor CDX2 alone or in combination with its more broadly expressed partner factors, GATA4 and HNF4A. Compared with single mutants, each combination produced significantly greater defects and rapid lethality through distinct anomalies. Intestines lacking Gata4 and Cdx2 were deficient in crypt cell replication, whereas combined loss of Hnf4a and Cdx2 specifically impaired viability and maturation of villus enterocytes. Integrated analysis of TF binding and of transcripts affected in Hnf4a;Cdx2 compound-mutant intestines indicated that this TF pair controls genes required to construct the apical brush border and absorb nutrients, including dietary lipids. This study thus defines combinatorial TF activities, their specific requirements during tissue homeostasis, and modules of transcriptional targets in intestinal epithelial cells in vivo.

| S-EPMC4340426 | biostudies-literature

The transcription factor CDX2 maintains active enhancer in intestinal villus cells in vivo (expression data)

2013-02-05 | GSE34567 | GEO

The transcription factor CDX2 maintains active enhancer in intestinal villus cells in vivo (ChIP-seq data)

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Cdx2 transcription factor binding in intestinal villus and gene expression profiling in Cdx mutant mice

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The transcription factor CDX2 maintains active enhancer in intestinal villus cells in vivo (ChIP-seq data)

Project description:We established whether partner transcription factor binding, chromatin structure, or gene expression is compromised upon loss of partner factors cdx2 or hnf4a in mouse intestinal villi. This metadata file describes the ChIP-seq componant of that data Intestinal epithelia were collected from mouse jejunum using EDTA-based chelation and ChIP-seq was performed, followed by next generation sequencing.

2013-02-05 | E-GEOD-34566 | biostudies-arrayexpress

The transcription factor CDX2 maintains active enhancer in intestinal villus cells in vivo (expression data)

Project description:We established whether partner transcription factor binding, chromatin structure, or gene expression is compromised upon loss of partner factors cdx2 or hnf4a in mouse intestinal villi This metadata file describes the gene expression componant of that data Intestinal epithelia were collected from mouse jejunum using EDTA-based chelation and RNA was made using trizol. RNA was checked for quality and then processed for affymetrix arrays, 430 2.0.

2013-02-05 | E-GEOD-34567 | biostudies-arrayexpress

Cdx2 Binding Sites On Cdx2 Expressing ES Cells

Project description:A) Chromatins were prepared from Cdx2-inducible ES cells cultured for 48 - 60 hours in the Dox+ and Dox- conditions. Chromatin immunoprecipitation (ChIP) was carried out by using anti-FLAG M2 affinity gel. ChIP product was tested by Western blotting using anti-FLAG antibody. Nuclear extract from ES cells cultured for 48 - 60 hours in Dox+ and Dox- condition was used for the Western blot. B) CDX2 ChIP-Seq peaks in the Hoxa7 gene region. UCSC Mouse Mm9 browser view of Hoxa7 gene locus after mapping CDX2 ChIP-Seq tags locations in the wiggle format. CDX2 ChIP-Seq peaks are shown in red color. C) Cdx2 ChIP-Seq result was verified by qPCR. Target genes were indicated in (G). Primers flanking a promoter region of Hbb-b1 and Pou5f1 as well as a gene desert region in chromosome 3 were used as negative controls. Primers flanking of Actb gene promoter were used for normalization. The relative enrichment of CDX2 binding was indicated as fold change. (D) CDX2-binding motifs identified with CisFinder using 200 bp sequences centered at ChIP sites. (F) Potential CDX2-direct target genes based on ChIP-Seq and the alteration of expression by Cdx2-overexpression. (G) Identification of CDX2 target genes by combining information on binding sites with gene expression response to Cdx2 over-expression

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Distinct processes and transcriptional targets underlie CDX2 requirements in intestinal stem cells and differentiated villus cells

Project description:To define target genes of the intestine-restricted transcription factor (TF) CDX2 in intestinal stem cells, we performed chromatin immunoprecipitation coupled with high-throughput sequencing (ChIP-Seq). We used RNA-sequencing to profile gene expression changes during cell differentiation from mouse intestinal stem cells to mature villus cells, as well as genes perturbed in intestinal stem cells upon loss of Cdx2. We find thousands of genes that change in expression during cell differentiation, including known stem cell and mature markers. Upon loss of Cdx2, hundreds of genes are up and down-regulated in intestinal stem cells, some of which are also bound by CDX2 nearby and constitute candidate direct target genes. CDX2 ChIP-Seq analysis of isolated mouse intestinal stem cells. RNA seq analysis of control mouse villus cells, control intestinal stem cells and Cdx2-deleted intestinal stem cells.

2015-09-15 | E-GEOD-70766 | biostudies-arrayexpress

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