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Poor Endometrial Proliferation after Clomiphene is Associated with Altered Estrogen Action [ChIP-Seq]

ABSTRACT: We report ESR1 cistromic profiles from endometrial biopsies obtained from infertile women in the late proliferative phase who developed either optimal (≥8mm) or suboptimal (<6mm) endometrial thickness following early follicular phase exposure to 100mg clomiphene citrate for 5 days.

ORGANISM(S): Homo sapiens

PROVIDER: GSE164764 | GEO | 2021/06/15

REPOSITORIES: GEO

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Poor Endometrial Proliferation after Clomiphene is Associated with Altered Estrogen Action [RNA-Seq]

Project description:We report transcriptomic profiles from endometrial biopsies obtained from infertile women in the late proliferative phase who developed either optimal (≥8mm) or suboptimal (<6mm) endometrial thickness following early follicular phase exposure to 100mg clomiphene citrate for 5 days.

2021-06-15 | GSE164768 | GEO

Endometrial transcriptome and PGR cistrome in cycling fertile women [RNA-seq]

Project description:We report the transcriptomic profile and PGR cistromic profile for endometrial biopsies obtained from fertile women during the proliferative and mid-secretory phase of the menstrual cycle

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Endometrial transcriptome and PGR cistrome in cycling fertile women [ChIP-seq]

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Natural cycle frozen embryo transfer is superior to artificial cycle in women with recurrent implantation failure: endometrial transcriptome study

Project description:Transcriptome profile of receptive phase endometrium among infertile women with recurrent implantation failure (RIF) in two different endometrial preparation protocols for FET was analyzed: natural cycle (NC-FET) vs. artificial cycle (AC-FET). Fifteen endometrial biopsy samples were obtained: women with unexplained RIF (n = 5) in natural cycles for FET (NC-FET), women with unexplained RIF undergoing artificial endometrial preparation (n = 5) for FET (AC-FET), and healthy women (n = 5) with proven fertility in natural cycles (NC-FC) (Control group). All endometrial biopsies were obtained during the mid-secretory phase, at the time of ‘window of implantation’.

2016-01-15 | E-MTAB-3655 | biostudies-arrayexpress

Natural cycle frozen embryo transfer is superior to artificial cycle in women with recurrent implantation failure: endometrial transcriptome study

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Loss of endometrial plasticity in recurrent pregnancy loss (RNA-Seq)

Project description:In order to try and identify characteristics of gene expression in the endometrium of women suffering infertility or recurrenty miscarriage, we performed RNAseq on endometrial pipelle biopsies from 20 women. The endometrial transcriptome in the mid-luteal phase of the cycle (window of implantation) is highly divergent in women suffering infertility or miscarriages. 20 mid-luteal endometrial biopsies were analysed from infertile women and patients suffering recurrent pregnancy loss.

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Estrogen-independent molecular actions of mutant estrogen receptor alpha in endometrial cancer [RNA-seq]

Project description:Estrogen receptor alpha (ESR1) mutations have been identified in hormone therapy resistant breast cancer and primary endometrial cancer. Analyses in breast cancer suggests that mutant ESR1 exhibits estrogen independent activity. In endometrial cancer, ESR1 mutations are associated with worse outcomes and less obesity, however experimental investigation of these mutations has not been performed. Using a unique CRISPR/Cas9 strategy, we introduced the D538G mutation, a common endometrial cancer mutation that alters the ligand binding domain of ESR1, while epitope tagging the endogenous locus. We discovered estrogen-independent mutant ESR1 genomic binding that is significantly altered from wildtype ESR1. The D538G mutation impacted expression, including a large set of non-estrogen regulated genes, and chromatin accessibility, with most affected loci bound by mutant ESR1. Mutant ESR1 is unique from constitutive ESR1 activity as mutant-specific changes are not recapitulated with prolonged estrogen exposure. Overall, D538G mutant ESR1 confers estrogen-independent activity while causing additional regulatory changes in endometrial cancer cells that are distinct from breast cancer cells.

2019-06-11 | GSE132428 | GEO

Estrogen-independent molecular actions of mutant estrogen receptor alpha in endometrial cancer [ChIP-seq]

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Estrogen-independent molecular actions of mutant estrogen receptor alpha in endometrial cancer [ATAC-seq]

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Genome-wide estrogen receptor-α binding and action in human endometrial stromal cells [ChIP-Seq]

Project description:Endometrial estrogen receptor-α (ESR1) is indispensable for epithelial and stromal proliferation and differentiation during decidualization, yet the gene targets of estradiol (E2) / ESR1 in human stromal cells and associated mechanisms remain unknown. In this study, we characterized global E2-ESR1‒dependent transcriptomic changes and ESR1 recruitment to chromatin. Human endometrial stromal cells were isolated from 4 premenopausal women for primary cell culture. Genome-wide RNA expression by RNA-sequencing was compared in endometrial stromal cells with or without siRNA knockdown of ESR1 in the presence or absence of E2 (n=2). Genome-wide recruitment of ESR1 to chromatin was assessed by chromatin immunoprecipitation sequencing using an antibody against ESR1 was performed to examine binding to target genes (n=1).

2020-07-06 | GSE151393 | GEO

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