Identification and profiling of microRNAs in goat endometrium during Embryo Implantation
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ABSTRACT:
ORGANISM(S): Capra hircus
PROVIDER: GSE63422 | GEO | 2017/02/09
SECONDARY ACCESSION(S): PRJNA267707
REPOSITORIES: GEO
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Project description:In the present study, RNA-seq technique was used to compare the expression profiles of circRNAs from goat endometrium samples at gestational day 5 (pre-receptive endometrium, PE) and day 15 (receptive endometrium, RE). A total of 21,813 circRNAs were identified in goat endometrium, of which only 31.22% (6,810) circRNAs were co-expressed at both stages, and 5,925 circRNAs were identified specifically in RE and 9,078 in PE, suggesting high stage specificity in the circRNAs in dairy goats. Further analysis found that there were 334 DECs (differentially expressed circRNAs) in RE compared to PE (P< 0.05), and circRNA8077 was up-regulated with the highest FPKM value in RE. It was noteworthy that half of the up-regulated circRNAs with top 10 highest FPKM value in RE were come from CRIM1. Moreover, GO and KEGG analysis of the hgDEGs (hosting genes of DECs) revealed some circRNAs, genes and pathways that may involve in the formation of the receptive endometrium in dairy goats. In a word, our data provided an endometrium circRNA expression atlas related to the biology of the goat receptive endometrium during embryo implantation, and the results suggested that a subset of circRNAs might involve in the processes of the formation and development of endometrial receptivity.
2019-05-09 | GSE85384 | GEO
Project description:Purpose: The goals of this study are to compare the differentially expressed genes in IFNT-treated and untreated goat endometrial epithelial cells and screen the signaling pathways related to endometrial receptivity. Methods: We performed RNA sequencing of goat endometrial epithelial cells (gEECs) with or without 20 ng/mL IFNT treatment. KEGG enrichment analysis was used to screen for enrichment pathways, and qRT-PCR, western blotting and immunohistochemistry were used for in vivo and in vitro validation. Results: Differential comparison showed that there were 442 upregulated differentially expressed genes (DEGs) and 510 downregulated DEGs. Bioinformatic analyses revealed that DEGs were significantly enriched in immune-related functions or pathways. The results of qRT-PCR, western blotting and immunohistochemistry were consistent with those of RNA-seq. Conclusion: These results highlight the role of IFNT in regulating endometrial receptivity in gEECs and uncover the temporal and spatial changes in the expression of STAT1/3 during embryo implantation in the goat endometrium.
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Project description:MicroRNAs (miRNAs) act as important epigenetic post-transcriptional regulators of gene expression. We aimed to gain more understanding to the complex gene expression regulation of endometrial receptivity by analysing miRNA signature of fertile human endometrium. We used Agilent miRNA arrays to define the miRNA expression pattern in receptive (LH+7, n = 3) vs. pre-receptive (LH<7, n = 4) endometrium from healthy fertile women.
2012-06-22 | E-GEOD-34435 | biostudies-arrayexpress
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.
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Project description:Purpose: We compared endometrial transcriptome profiles during the window of implantation (WOI) between women with and without uterine adenomyosis. Methods: We obtained endometrial biopsies luteinizing hormone (LH)-timed to the WOI from women with sonographic features of adenomyosis (n=10) and controls (n=10). Isolated RNA samples were subjected to RNA sequencing (RNA-seq) and endometrial receptivity classification with a molecular tool for menstrual cycle phase dating (beREADY®, CCHT). RNA-seq data were analysed in the setting of the result of accurate endometrial dating. Results: Out of 20 endometrial samples, 2 were dated to the early receptive phase, 13 to the receptive phase and 5 to the late receptive phase. Comparison of the transcriptomics data from all 20 samples provided 909 DEGs (p<0.05; nonsignificant after adjusted p value) in the adenomyosis group but only 4 enriched pathways (Bonferroni p value < 0.05). The analysis of 13 samples only dated to the receptive phase provided suggestive 382 DEGs (p<0.05; nonsignificant after adjusted p value) in the adenomyosis group, leading to 33 enriched pathways (Bonferroni p value < 0.05). These included pathways were already associated with endometrial biology, such as “Expression of interferon (IFN)-induced genes” and “Response to IFN-alpha”. Conclusion: Accurate endometrial dating and RNA-seq analysis resulted in the identification of altered response to IFN signalling as the most promising candidate of impaired uterine receptivity in adenomyosis.
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Project description:A microarray study about miRNA expression profiles in recurrent implantation failure patients as compare with who had got pregnancy after embryo implantation no more than three times To detect the miRNAs that may regulate endometrial receptivity by microarray study
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Project description:Different progesterone levels and timing of exposure results in different endometrial gene expression and implantation potential. Sufficient progesterone level is important to induce endometrial receptivity and endometrial expressed the most receptive stage after exposure to progesterone for 7 days based on decidualisation marker expression.
2020-03-12 | GSE146777 | GEO
Project description:Despite great advances in assisted reproductive technology (ART), unexplained recurrent implantation failure (RIF) due to disorder of endometrial receptivity still cannot be effectively avoided. More importantly, cell characteristics and cell communication that regulate endometrial receptivity and differentiation, and its disorders in RIF at the window of implantation (WOI) remain rudimentary. Here we characterized the transcriptomes of four major cells in human endometrium from healthy control and RIF patients at single-cell resolution. We discovered the dynamic change characteristics of four major endometrial fibroblast-like cells with different endometrial receptivity, reported a novel pluripotent endometrial glandular epithelial cell with high levels of progesterone receptor and exosomes, and defined a unique ITGA1+CXCR4+ NK cell for connecting endometrial nonimmune cells and immune cell infiltration at the WOI. Additionally, we developed a systematic repository of cell-cell communication for endometrial differentiation and the opening of endometrial receptivity via the ligand-receptor complexes interactions. Our study provides deeper insights into aberrant molecular and cellular characterizations, and the endometrial microenvironmental disorders of RIF patients that are potentially applicable to improve the etiological diagnosis and therapeutics of unexplained RIF.
2022-09-16 | GSE183837 | GEO
Project description:Endometrial receptivity plays a vital role in the success of embryo implantation. However, the temporal proteomic profile of porcine endometrium during embryo implantation is still unclear. In this study, the expression of proteins in endometrium on days 9, 10, 11, 12, 13, 14, 15 and 18 of pregnancy (D9, 10, 11, 12, 13, 14, 15 and 18) was profiled via iTRAQ technology. The results showed that 25, 55, 103, 91, 100, 120, 149 proteins were up-regulated, and 24, 70, 169, 159, 164, 161, 198 proteins were down-regulated in porcine endometrium on D10, 11, 12, 13, 14, 15 and 18 compared with that on D9, respectively. Among these differentially expressed (DE) proteins, MQM results indicated that S100A9, S100A12, HRG and IFI6 were differentially expressed in endometrial tissues during embryo implantation period. Bioinformatics analysis showed that the proteins differentially expressed in the 8 comparisons (D10 vs D9, D11 vs D9, D12 vs D9, D13 vs D9, D14 vs D9, D15 vs D9 and D18 vs D9) were involved in important processes and pathways related to immunization, endometrial remodeling, which have a vital effect on embryonic implantation. Our results reveal that RBP4 could regulate the cell proliferation, migration and apoptosis of endometrial epithelial cells and endometrial stromal cells to affect embryo implantation. This research also provides resources for studies of proteins in endometrium during early pregnancy.
2022-05-06 | PXD030681 | Pride
Project description:Successful embryo implantation into a receptive endometrium requires mutual endometrial-embryo communication. Recently, the function of extracellular vehicles (EVs) in cell-to-cell interaction in embryo-maternal interactions has been investigated. We explored isolated endometrial derived EVs, using RL95-2 cells as a model of a receptive endometrium, influenced by menstrual cycle hormones estrogen (E2; proliferative phase) progesterone (P4; secretory phase) and estrogen plus progesterone (E2P4; the receptive phase). EV sized particles were isolated by differential centrifugation and size exclusion chromatography. Nanoparticle tracking analysis was used to examine the different concentration and size of particles and EV proteomic analysis per-formed using shotgun label-free mass spectrometry. Our results showed that although endome-trial derived EVs were secreted in numbers independent of hormonal stimulation, EVs sizes were statistically modified by it. Proteomics analysis showed that hormone treatment changes affect the endometrial EVs proteome, with proteins enhanced within the EV E2P4 group shown to be in-volved in different processes such as embryo implantation, endometrial receptivity, and embryo development, supporting the concept of a communication system between the embryo and the maternal endometrium via EVs.
2023-02-13 | PXD039764 | Pride