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Genome-wide Profiling of FOXA2 and POL2 binding in the mouse uterus [ChIP-Seq]

ABSTRACT: Forkhead box A2 (FOXA2) is a critical regulator of endometrial gland development in mice. In the adult mouse uterus, FOXA2 is expressed solely in the GE cells of the endometrium. Conditional deletion of Foxa2 after birth in the uterus, using the progesterone receptor Cre mouse (PgrCre), impeded gland development, thereby rendering the adult mouse infertile due to defects in blastocyst implantation stemming from a lack of endometrial glands and their secretions. As a first step to begin understanding the FOXA2 function in the endometrial glands of the uterus, genome-wide investigation of in vivo FOXA2 and RNA polymerase II (POL2) binding target regions in the neonatal and adult uterus was determined by chromatin immunoprecipitation followed by massively parallel sequencing (ChIP-Seq). In order to determine the transcriptional regulatory networks mediating FOXA2 regulation of endometrial gland development and function, chromatin immunoprecipitation and massively parallel sequencing (ChIP-Seq) was used to create a genome-wide profile of in vivo FOXA2-binding sites in the developing (PD 12) and adult (DOPP 2.5 and 3.5) mouse uterus.

ORGANISM(S): Mus musculus

SUBMITTER: Thomas Spencer

PROVIDER: E-GEOD-48238 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Genome-wide Profiling of FOXA2 and POL2 binding in the mouse uterus [ChIP-Seq]

Project description:Forkhead box A2 (FOXA2) is a critical regulator of endometrial gland development in mice. In the adult mouse uterus, FOXA2 is expressed solely in the GE cells of the endometrium. Conditional deletion of Foxa2 after birth in the uterus, using the progesterone receptor Cre mouse (PgrCre), impeded gland development, thereby rendering the adult mouse infertile due to defects in blastocyst implantation stemming from a lack of endometrial glands and their secretions. As a first step to begin understanding the FOXA2 function in the endometrial glands of the uterus, genome-wide investigation of in vivo FOXA2 and RNA polymerase II (POL2) binding target regions in the neonatal and adult uterus was determined by chromatin immunoprecipitation followed by massively parallel sequencing (ChIP-Seq).

2013-12-01 | GSE48238 | GEO

Determination of the Forkhead box A2 (FOXA2) Cistrome in the Human Endometrium

Project description:Uterine glands are central to endometrial function and fertility, however the mechanisms regulating their development and function are not well understood. The pioneer forkhead box A2 (FOXA2) transcription factor is distinctively expressed in the glands of the endometrium in both the human and mouse uterus. Studies in mice established that FOXA2 is a critical regulator of gland development in the neonatal uterus as well as differentiated gland function in the adult uterus. An integrative approach was used here to define the FOXA2 cistrome in the human endometrium. Genome-wide mapping of FOXA2 binding sites by chromatin immunoprecipitation sequencing (ChIP-Seq) was performed on proliferative (P) and mid-secretory (MS) phase endometrium and combined with the transcriptome determined by RNA sequencing (RNA-Seq). Distinctive binding of FOXA2 was observed between the P and MS endometrium, and FOXA2 binding intervals were enriched for different transcription factor binding motifs between the phases of endometrium. Pathway analysis revealed different biological processes regulated by FOXA2 bound genes in the P and MS endometrium. Thus, FOXA2 is proposed to regulate gene expression in concert with other transcription factors to influence gland function in a cycle phase-dependent manner. Further analysis identified potential FOXA2 regulated genes that influence endometrial growth, uterine receptivity, and stromal cell decidualization. This analysis of the FOXA2 cistrome provides a foundation essential to understanding fundamental aspects of uterine gland development, differentiation, function, and disease.

2018-08-30 | GSE119209 | GEO

Sexually dimorphic effects of forkhead box a2 (FOXA2) and uterine glands on decidualization and fetoplacental development

Project description:Glands of the uterus are essential for the establishment of pregnancy in mice, sheep and likely humans. Forkhead box a2 (FOXA2) is expressed specifically in the glands of the uterus and a critical regulator of glandular epithelium (GE) differentiation, development and function. Mice with a conditional deletion of FOXA2 in the adult uterus, created using the lactotransferrin iCre (Ltf-iCre) model, have a morphologically normal uterus with glands, but lack a considerable number of FOXA2-dependent GE-expressed genes. Adult FOXA2 conditional knockout (cKO; Ltf-iCre:Foxa2 flox) mice are infertile due to defective embryo implantation arising from a lack of leukemia inhibitory factor (LIF), a critical implantation factor of uterine gland origin. Intraperitoneal injections of LIF can initiate embryo implantation in the uterus of adult FOXA2 cKO mice with pregnancies maintained to term. Here, we tested the hypothesis that FOXA2-regulated genes in the uterine glands impact development of the decidua, placenta and fetus. On gestational day (GD) 8.5, the anti-mesometrial and mesometrial decidua transcriptome was noticeably altered in FOXA2 cKO mice. Viable fetuses were reduced in FOXA2 cKO mice on GDs 12.5 and 17.5. Sex-dependent differences in fetal weight, placenta histoarchitecture, and the placenta and metrial gland transcriptome were observed between control and FOXA2 cKO mice. The transcriptome of the placenta with a female fetus was considerably more altered than the placenta with a male fetus in FOXA2 cKO dams. These studies reveal previously unrecognized sexually dimorphic effects of FOXA2 and uterine glands on fetoplacental development with potential impacts on offspring health into adulthood.

2020-07-09 | GSE154026 | GEO

Project description:FOXA2-regulated genes in the adult mouse uterus

| PRJNA209720 | ENA

SOX17 regulates uterine epithelial-stromal crosstalk acting via a distal enhancer upstream of Ihh [ChIP-seq]

Project description:Mammalian embryo development is dependent on the ability of the uterus to allow and support the implantation of the embryo. Here we demonstrate that ablation of Sox17 specifically in the uterine epithelium results in altered uterine epithelial cell proliferation, uterine gland development and embryo implantation. Uteri lacking Sox17 showed reduction in LIF and IHH signaling which are critical for embryo implantation. ChIP-seq analysis demonstrated that SOX17 binds to a region 19kb 5’ to the Ihh locus. In vivo deletion of this enhancer by the CRISPR-Cas technology reduced Ihh expression in uteri and altered proper endometrial epithelial-stromal interactions required for pregnancy leading to compromised fertility. The SOX17 binding peak at 19kb from the Ihh promoter also bound GATA2, FOXA2 and PGR. Bioinformatic analysis of regions overlapping SOX17, GATA2, FOXA2 and PGR bindings shows 737 genes with these common binding sites. This cluster of transcription factors identified in this enhancer region may represent a combination of regulatory elements essential for uterine epithelial gene expression and differentiation.

2018-08-09 | GSE118327 | GEO

SOX17 regulates uterine epithelial-stromal crosstalk acting via a distal enhancer upstream of Ihh [array]

2018-08-09 | GSE118264 | GEO

Identification of candidate FOXA2-regulated genes in the adult mouse uterus

Project description:To identify candidate genes regulated by forkhead transcription factor box A2 (FOXA2) in the uterus, control and Foxa2-deleted uteri were collected at day of pseudopregnancy (DOPP) 3.5 (DOPP 0.5= vaginal plug). Microarray analysis identified differentially expressed genes in the Foxa2-deleted as compared to control uteri that are candidiate FOXA2-regulated genes in the uterus. Whole uteri (control wild type n=4; Foxa2-deleted n=4) were analyzed for differences in their transcriptome using a mouse microarray.

2013-12-01 | E-GEOD-48339 | biostudies-arrayexpress

Chromatin immunoprecipitation of adult mouse liver to identify Foxa2 targets

Project description:We performed genome-wide location analysis for Foxa2 to identify its targets in the adult mouse liver. Chromatin isolated from the liver of five adult mice was cross-linked, sheared and immunoprecipitated with a Foxa2-specific antibody. The resulting material, as well as material that was not immunoprecipitated, was uncross-linked, amplified, labeled and hybridized to the Mouse Promoter Chip BCBC-5A. Statistical analysis resulted in a set of 107 genes that are bound by Foxa2. Using computational analyses, we showed that Foxa2 containing cis-regulatory modules are dependent on the strength of the Foxa2 consensus site present.

2008-07-04 | E-MTAB-32 | biostudies-arrayexpress

Identification of candidate FOXA2-regulated genes in the adult mouse uterus

2013-12-01 | GSE48339 | GEO

Analysis of FoxA2 occupancy in mouse liver with endoderm ChIP-chip array

Project description:Understanding how silent genes can be competent for activation provides insight into development as well as cellular reprogramming and pathogenesis. We performed genomic location analysis of the pioneer transcription factor FoxA in the adult liver and found that about one-third of the FoxA bound sites are near silent genes, including genes without detectable RNA polymerase II. Virtually all of the FoxA-bound silent sites are within extended conserved sequences, suggesting possible function. Such sequences are enriched in motifs for transcriptional repressors, including for Rfx1. We found one such target site containing functional FoxA and Rfx1 sites is a cryptic enhancer 7 kb downstream of the Cdx2 gene, the latter being an effector of esophageal metaplasia. Indeed, Rfx1 sites restrict transcriptional activation by FoxA at the +7 kb Cdx2 element. Furthermore, Rfx1 expression in the esophageal epithelium becomes extinguished during its metaplastic progression to carcinoma. We propose that motif analysis of other transcription factors bound to silent genes can reveal unanticipated regulatory networks that provide insights into reprogramming and oncogenic progression. We analyzed FOXA2 occupancy in a mouse liver sample. We ran three competitive hybridizations: (i) FOXA2 vs IgG, (ii) FOXA2 vs input, and (iii) IgG vs input.

2011-07-18 | E-GEOD-23551 | biostudies-arrayexpress

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