Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA245205 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR1259180.fastq.gz | Fastqsanger.gz | |||
| SRR1259190.fastq.gz | Fastqsanger.gz | |||
| SRR1259181.fastq.gz | Fastqsanger.gz | |||
| SRR1259191.fastq.gz | Fastqsanger.gz | |||
| SRR1259182.fastq.gz | Fastqsanger.gz |
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Project description:Genome-wide analysis of histone modifications in human endometrial stromal cells
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Project description:Genome-wide analysis of histone modifications in human endometrial stromal cells [RNA-Seq]
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Project description:Dramatic changes of gene expressions are known to occur in human endometrial stromal cells (ESC) during decidualization. The changes in gene expression are associated with changes of chromatin structure, which are regulated by epigenetic mechanisms such as histone modifications. Here, we investigated genome-wide changes in histone modifications and mRNA expressions associated with decidualization in human ESC using chromatin immunoprecipitation (ChIP) combined with next-generation sequencing. ESC were incubated with estradiol and medroxyprogesterone acetate for 14 days to induce decidualization. The ChIP-sequence data showed that induction of decidualization increased H3K27ac and H3K4me3 signals in many genomic regions but decreased in only a few regions. Most (80%) of the H3K27ac-increased regions and half of the H3K4me3-increased regions were located in the distal promoter regions (more than 3 kb upstream or downstream of the transcription start site). RNA-sequence showed that induction of decidualization up-regulated 881 genes, 223 of which had H3K27ac- or H3K4me3-increased regions in the proximal and distal promoter regions. Induction of decidualization increased the mRNA levels of these genes more than it increased the mRNA levels of genes without H3K27ac- or H3K4me3-increased regions. Pathway analysis revealed that up-regulated genes with the H3K27ac- or H3K4me3-increased regions were associated with insulin signaling. These results show that histone modification statuses genome-widely change in human ESC by induction of decidualization. The main changes of histone modifications are increases of H3K27ac and H3K4me3 in both the proximal and distal promoter regions, which are involved in the up-regulation of gene expression that occurs during decidualization. Examination of 4 different histone modifications in human endometrial stromal cells with or without EP inductions for 2 individuals. (EP induction: induction with estradiol (10-8 M) and medroxyprogesterone acetate (10-6 M))
2015-03-03 | E-GEOD-57007 | biostudies-arrayexpress
Project description:Dramatic changes of gene expressions are known to occur in human endometrial stromal cells (ESC) during decidualization. The changes in gene expression are associated with changes of chromatin structure, which are regulated by epigenetic mechanisms such as histone modifications. Here, we investigated genome-wide changes in histone modifications and mRNA expressions associated with decidualization in human ESC using chromatin immunoprecipitation (ChIP) combined with next-generation sequencing. ESC were incubated with estradiol and medroxyprogesterone acetate for 14 days to induce decidualization. The ChIP-sequence data showed that induction of decidualization increased H3K27ac and H3K4me3 signals in many genomic regions but decreased in only a few regions. Most (80%) of the H3K27ac-increased regions and half of the H3K4me3-increased regions were located in the distal promoter regions (more than 3 kb upstream or downstream of the transcription start site). RNA-sequence showed that induction of decidualization up-regulated 881 genes, 223 of which had H3K27ac- or H3K4me3-increased regions in the proximal and distal promoter regions. Induction of decidualization increased the mRNA levels of these genes more than it increased the mRNA levels of genes without H3K27ac- or H3K4me3-increased regions. Pathway analysis revealed that up-regulated genes with the H3K27ac- or H3K4me3-increased regions were associated with insulin signaling. These results show that histone modification statuses genome-widely change in human ESC by induction of decidualization. The main changes of histone modifications are increases of H3K27ac and H3K4me3 in both the proximal and distal promoter regions, which are involved in the up-regulation of gene expression that occurs during decidualization. mRNA profiles of human endometrial stromal cells with and without EP inductions for 2 individuals. (EP induction: induction with estradiol (10-8 M) and medroxyprogesterone acetate (10-6 M))
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Project description:We report the genome-wide binding sites of PGR-A and PGR-B at 2h of in vitro differentiation of human endometrial stromal cells that express either PGR-A or PGR-B. Progesterone, acting through the progesterone receptors (PGRs), is one of the most critical regulators of endometrial differentiation, known as decidualization, which is a key step toward the establishment of pregnancy. Yet a long-standing unresolved issue in uterine biology is the precise roles played by the major PGR isoforms, PGR-A and PGR-B, during decidualization in the human. Our approach, expressing PGR-A and PGR-B individually after silencing endogenous PGRs in human endometrial stromal cells (HESC), enabled the analysis of the roles of these isoforms separately as well as jointly by ChIP-seq and gene-expression analysis. In order to study the cistromes of PGR-A and PGR-B at 2h of in vitro differentiation of human endometrial stromal cells, we generated primary cultures of human endometrial stromal cells expressing flag tagged PGR-A and PGR-B individually after silencing endogenous PGRs. Input DNA was used as the reference sample.
2015-04-27 | E-GEOD-62475 | biostudies-arrayexpress
Project description:We report sequening of chromatin immunoprecipitated DNA (ChIP-Seq) of histone H3 at lysine 4 (H3K4me3) normoxic and hypoxia treated endometrial stromal fibroblasts (ESF) and hypoxia treated differentiated decidual stromal cells (DSC),
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Project description:We report the genome-wide binding sites of PGR-A and PGR-B at 2h of in vitro differentiation of human endometrial stromal cells that express either PGR-A or PGR-B. Progesterone, acting through the progesterone receptors (PGRs), is one of the most critical regulators of endometrial differentiation, known as decidualization, which is a key step toward the establishment of pregnancy. Yet a long-standing unresolved issue in uterine biology is the precise roles played by the major PGR isoforms, PGR-A and PGR-B, during decidualization in the human. Our approach, expressing PGR-A and PGR-B individually after silencing endogenous PGRs in human endometrial stromal cells (HESC), enabled the analysis of the roles of these isoforms separately as well as jointly by ChIP-seq and gene-expression analysis.
2015-04-27 | GSE62475 | GEO
Project description:We report the whole genome binding profile of PGR and FOSL2 ChIP-seq in decidualizing human endometrial stromal cells
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Project description:DNA regulatory elements are reported to be enriched for variants identified by genome-wide association studies to be significantly assocaited with risk of complext traits. Here, we have performed genome-wide mapping of histone modifications in two endometrial cancer cell lines and performed interestions of these sites with genetic risk variants identified by genome-wide association study of endometrial cancer. Histone modifications indicative of enhancers (H3K4Me1 and H3K27Ac) and promoters (H3K27Ac and H3K4Me3) were identified by ChIP-seq in Ishikawa and JHUEM-14 cells, pre- and post-stimulation by estrogen. Overall, 73% of endometrial cancer genetic risk variants overlapped at least histone modification site. This overlap was significantly greater than the overlap observed for these histone marks with genetic risk variants related to, for example, endometriosis (51%; Fisher’s Exact p = 8.7x10-8) or schizophrenia (40%; Fisher’s Exact p < 2.2x10-16). These findings indicate the relevance of the selected cell and tissue types for informing endometrial cancer biology. Overlaps between genetic risk variants and histone modification sites increased significantly after stimulation with estrogen (50% versus 38% for unstimulated features; Fisher’s Exact p = 5.6x10-3), emphasizing the importance of estrogen in endometrial cancer aetiology.
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