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Biological significance of CDYL in endometrial receptivity

ABSTRACT: Biological significance of CDYL in endometrial receptivity

PROVIDER: PRJNA592906 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10573421_1.fastq.gz	Fastqsanger.gz
	SRR10573421_2.fastq.gz	Fastqsanger.gz
	SRR10573422_1.fastq.gz	Fastqsanger.gz
	SRR10573422_2.fastq.gz	Fastqsanger.gz
	SRR10573423_1.fastq.gz	Fastqsanger.gz

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Biological significance of CDYL in endometrial receptivity

Project description:Impaired endometrial receptivity is one of the major causes of recurrent implantation failure (RIF), and the underlying molecular mechanism has not been fully elucidated. We demonstrated that Chromodomain Y like (CDYL) was highly expressed in the endometrium at mid-secretory phase during the normal menstrual cycles. However, the expression of CDYL was down-regulated in the endometrial tissues obtained from women with RIF, consistently with the protein level of LIF, which is the marker of endometrial receptivity. Knockdown of CDYL significantly decreased the cell migration of human endometrial Ishikawa cells and primary endometrial cells. Genomic analyses revealed that CDYL gene silencing resulted in decreased expression of many genes associated with cytoskeleton and migration regulation.

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Changes in proteomics of endometrial tissue during secretion of polycystic ovary syndrome may affect endometrial receptivity

Project description:Polycystic ovary syndrome (PCOS) is one of the most common endocrinopathies among fertile women. PCOS patients have been confirmed to be accompanied by an increased risk of pregnancy complication, and the exact cause is still unclear. Many factors may cause this situation, and impaired endometrial receptivity could be responsible for adverse pregnancy outcomes in PCOS. Unfortunately, there were still few researches about the molecular mechanisms regarding impaired endometrial receptivity. So we designed this study to explore the secretory endometrial proteome in PCOS patients.

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Project description:We find that the Endometrial Blood Vessel Generation is an important part ofthe establishment of Endometrial Receptivity. We have demonstrated inprevious experiments: Acupuncture in IVF-ET treatment can effectively improve Endometrial Receptivity and improve the pregnancy rate, therefore, we proposea VEGF signaling pathway in Acupuncture can improve Endometrial receptivity, thus improving the success rate of IVF-ET Hypothesis. Around the hypothesisintends to adopt the rat model of IVF-ET, through methods of acupuncture, acupuncture combined with blocker, research the related indexes effect performance that acupuncture on the VEGF signaling pathway in endometrial. Using experimental techniques such as Morphological observation, ELIAS, Immunohistochemistry, Real-time quantitative PCR, Methylation-sensitive high-resolution melting curve method(MS-HRM), to complete the research ofobserving the Effect of acupuncture interference IVF-ET, Blocking the impaction VEGF to the effect, the relationship VEGF or gene methylation inits receptors with effect. From the molecular level clarify the adverse effects and mechanism action that acupuncture will improve IVF-ET superovulation of endometrial receptivity, through adjust VEGF signaling pathway, to provide a scientific basis for acupuncture in IVF-ET treatment

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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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Endometrial receptivity

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