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Dysregulated microRNAs in uterine fluid from women with recurrent implantation failure are linked to endometrial receptivity and implantation

ABSTRACT: Dysregulated microRNAs in uterine fluid from women with recurrent implantation failure are linked to endometrial receptivity and implantation

PROVIDER: PRJNA725127 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14323500.fastq.gz	Fastqsanger.gz
	SRR14323501.fastq.gz	Fastqsanger.gz
	SRR14323502.fastq.gz	Fastqsanger.gz
	SRR14323503.fastq.gz	Fastqsanger.gz
	SRR14323504.fastq.gz	Fastqsanger.gz

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Uterine glands impact uterine receptivity, luminal fluid homeostasis and blastocyst implantation

Project description:Uterine glands are essential for pregnancy in mice and likely humans, because they secrete or transport bioactive substances that regulate uterine receptivity for blastocyst implantation. In mice, the uterus becomes receptive to blastocyst implantation on day 4, but is refractory by day 5. Here, blastocysts could be recovered from progesterone-induced uterine gland (PUGKO) but not wildtype (WT) mice on day 5 post-mating. Anti-adhesive Muc1 protein and microvilli were present on the luminal epithelium of PUGKO but not WT uteri. A number of known uterine receptivity genes and gland-specific genes were altered in the PUGKO uterus. Next, the uterus and uterine luminal fluid (ULF) were obtained from WT and PUGKO mice on day 3, 4 and 5. Transcriptome analysis revealed that 580 genes were decreased in the PUGKO uterus, however ULF secrotome analysis revealed that many proteins and several amino acids were increased in the PUGKO ULF. Of note, many proteins encoded by many gland-specific genes were not identified in the ULF of WT mice. These results support the ideas that uterine glands secrete factors that regulate ULF homeostasis and interact with other cell types in the uterus to influence uterine receptivity and blastocyst implantation for the establishment of pregnancy.

2016-11-22 | GSE90101 | GEO

Dysregulated microRNAs in uterine fluid from women with recurrent implantation failure are linked to endometrial receptivity and implantation

Project description:The objective of the study was to compare the microRNA content in uterine fluid from patients with recurrent implantation failure (RIF) to that of healthy fertile women. It is a descriptive laboratory study including healthy fertile women and patients with RIF, defined as three failed in vitro fertilization cycles with high quality embryos. Study subjects were instructed to monitor their menstrual cycles using a luteinizing hormone test kit. Uterine fluid was collected on day LH+ 7-9 by flushing with saline. Samples were processed for small RNA sequencing and results were analysed using bioinformatics. The main outcome measure was to identify differentially expressed miRNAs between patients with RIF and healthy fertile women.

2022-02-14 | GSE173289 | GEO

Enhancing Uterine Receptivity for Embryo Implantation through Controlled Collagenase Intervention

Project description:Ineffective endometrial matrix remodeling, a key factor in infertility, impedes embryo implantation in the uterine wall. Our study reveals the cellular and molecular impact of human collagenase-1 administration in mouse uteri, demonstrating enhanced embryo implantation rates. Collagenase-1 promotes remodeling of the endometrial extracellular matrix (ECM), degrading collagen fibers and proteoglycans. This process releases matrix-bound bioactive factors, (e.g. VEGF, decorin), facilitating vascular permeability and angiogenesis. Collagenase-1 elevates embryo implantation regulators, including NK cell infiltration and the key cytokine LIF. Remarkably, uterine tissue maintains structural integrity despite reduced endometrial collagen fiber tension. In-utero collagenase-1 application rescues implantation in the heat stress and embryo transfer models, known for low implantation rates. Importantly, ex-vivo exposure of human uterine tissue to collagenase-1 induces collagen de-tensioning and VEGF release, mirroring remodeling observed in mice. Our research highlights collagenase potential to induce and orchestrate cellular and molecular processes enhancing uterine receptivity for effective embryo implantation. This innovative approach underscores ECM remodeling mechanisms critical for embryo implantation

2024-08-13 | PXD054389 | Pride

Uterine fluid microRNAs are dysregulated in women with recurrent implantation failure.

Project description: Not available

| S-EPMC8971651 | biostudies-literature

Abberant lncRNA expression profiles in recurrent implantation failure endometrium

Project description:To compare the lncRNA expression profile of RIF (recurrent implantation failure) and normal control endometrium,endometrium samples were collected at window of implantation (LH+6~10 days) The dysregulated lncRNAs between RIF and control group were deem to be involve in the regulation of endometrium receptivity

2018-07-24 | GSE71331 | GEO

Comparative endometrial proteomics among fertile women, intrauterine device carriers, and recurrent implantation failure patients using iTRAQ methodology

Project description:Endometrial receptivity is imperative to achieving pregnancy in humans. A disruption in the development of endometrial receptivity is responsible for recurrent implantation failures (RIF) of endometrial origin. To further understand the molecular mechanisms behind the endometrial receptivity process, we used the 8-plex isobaric tag for relative and absolute quantitation (iTRAQ) method to compare and quantify the proteomes from endometrial biopsies of three different endometrial statuses (fertile women, IUD carriers and RIF patients). Overall, iTRAQ allowed to identify 1,889 non-redundant proteins. Of these, 188 were differentially expressed proteins (DEP) (p-value < 0.05) among the three endometrial groups. Pairwise comparisons revealed 133 significant DEP in fertile vs. IUD carriers and 158 DEP in RIF vs. IUD carriers. However, no DEP were identified between fertile and RIF patients. Western blot validation of three DEP involved in endometrial receptivity (Plastin 2, Lactotrasferrin, and Lysozyme) confirmed our iTRAQ results. Moreover, functional KEGG enrichment revealed that complement and coagulation cascades and peroxisome were the two most significant pathways for the RIF vs. IUD comparison and ribosome and spliceosome for the fertile vs. IUD comparison, as possible important pathways involved in the endometrial receptivity acquisition. Our findings confirm that an IUD introduces numerous changes in the endometrial protein profile when compared to fertile and RIF endometria, revealing some key proteins involved in endometrial receptivity. The lack of DEP between fertile and RIF patient endometria suggest either that idiopathic RIF may not have an endometrial origin, with other as-yet-unknown factors involved.

2019-11-06 | PXD011094 | Pride

Uterine glands impact uterine receptivity, luminal fluid homeostasis and blastocyst implantation.

| S-EPMC5131473 | biostudies-literature

Gene expression study of human endometrial receptivity in IVF implantation failure patients undergoing ovarian stimulation

Project description:Endometrial receptivity on genomic level is one of the major cause of implantation failure in IVF patients with unexlained infertility and is a main obstacle in success of IVF. Gene expression profiles of implantation failure cases of unexplained infertility were compared with proven healthy oocyte donors as controls, both undergoing ovarian stimulation. The results provide additional information about gene expression profile related to endometrial receptivity in implantation failure cases especially under the influence of ovarian stimulation during IVF cycle.

2018-08-07 | GSE71835 | GEO

Podocalyxin governs the barrier function of human endometrial epithelium and critically regulates receptivity for embryo implantation

Project description:Embryo implantation is a key step in establishing pregnancy and a major limiting factor in IVF. Implantation requires the endometrium, the inner lining of the uterus, to transform from a non-receptive to a receptive state, to allow embryos to attach to the surface and enter into the tissue. However, the fundamental mechanisms governing receptivity are not well understood. Here we show that transmembrane protein podocalyxin is a major and clinically significant factor regulating human endometrial receptivity. Podocalyxin is expressed in all endometrial epithelial cells in the non-receptive state but is selectively down-regulated in the luminal epithelium at receptivity. We present evidence that podocalyxin critically governs the barrier function of the endometrial epithelium, likely as an intrinsic protective mechanism, rendering it non-receptive to an embryo. In addition, podocalyxin suppresses genes promoting receptivity (eg LIF, CSF1) but stimulates those inhibiting implantation (eg WNT7A, LEFTY2). Down-regulation of podocalyxin in the luminal epithelium, likely mediated by progesterone, selectively converts the endometrial surface to a more adhesive state that facilitates embryo attachment and penetration. Furthermore, inadequate down-regulation of podocalyxin in the endometrial luminal epithelium is associated with poorer implantation rates in IVF. We thus propose that podocalyxin promotes the barrier function of human endometrial epithelial cells and critically regulates receptivity for embryo implantation.

2021-04-01 | GSE148274 | GEO

Gene expression study of human endometrial receptivity in IVF implantation failure patients undergoing ovarian stimulation II

Project description:Endometrial receptivity on genomic level is one of the major cause of implantation failure in IVF patients with unexplained infertility and is a main obstacle in success of IVF. Gene expression profiles of implantation failure cases of unexplained infertility were compared with proven healthy oocyte donors as controls, both undergoing ovarian stimulation. The results provide additional information about gene expression profile related to endometrial receptivity in implantation failure cases especially under the influence of ovarian stimulation during IVF cycle.

2019-06-25 | GSE92324 | GEO

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