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Integrated microRNA and secretome analysis of human endometrial organoid reveal the miR-3194-5p/Aquaporin/S100A9 module in regulating trophoblast functions

ABSTRACT: Integrated microRNA and secretome analysis of human endometrial organoid reveal the miR-3194-5p/Aquaporin/S100A9 module in regulating trophoblast functions

PROVIDER: PRJNA811793 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18190100.fastq.gz	Fastqsanger.gz
	SRR18190101.fastq.gz	Fastqsanger.gz
	SRR18190102.fastq.gz	Fastqsanger.gz
	SRR18190103.fastq.gz	Fastqsanger.gz
	SRR18190104.fastq.gz	Fastqsanger.gz

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Project description:Successful placentation requires delicate communication between the endometrium and trophoblasts. The invasion and integration of trophoblasts into the endometrium during early pregnancy are crucial to placentation. Dysregulation of these functions is associated with various pregnancy complications, such as miscarriage and preeclampsia. The endometrial microenvironment has an important influence on trophoblast cell functions. The precise effect of the endometrial gland secretome on trophoblast functions remains uncertain. We hypothesized that the hormonal environment regulates the miRNA profile and secretome of the human endometrial gland, which subsequently modulates trophoblast functions during early pregnancy. Human endometrial tissues were obtained from endometrial biopsies with written consent. Endometrial organoids were established in matrix gel under defined culture conditions. They were treated with hormones mimicking the environment of the proliferative phase (Estrogen, E2), secretory phase (E2+Progesterone, P4), and early pregnancy (E2+P4+Human Chorionic Gonadotropin, hCG). miRNA-seq was performed on the treated organoids. Organoid secretions were also collected for mass spectrometric analysis. The viability and invasion/migration of the trophoblasts after treatment with the organoid secretome were determined by cytotoxicity assay and transwell assay, respectively. Endometrial organoids with the ability to respond to sex steroid hormones were successfully developed from human endometrial glands. By establishing the first secretome profiles and miRNA atlas of these endometrial organoids to the hormonal changes followed by trophoblast functional assays, we demonstrated that sex steroid hormones modulate aquaporin (AQP)1/9 and S100A9 secretions through miR-3194 activation in endometrial epithelial cells, which in turn enhanced trophoblast migration and invasion during early pregnancy. By using a human endometrial organoid model, we demonstrated for the first time that the hormonal regulation of the endometrial gland secretome is crucial to regulating the functions of human trophoblasts during early pregnancy. The study provides the basis for understanding the regulation of early placental development in humans.

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Integrated microRNA and secretome analysis of human endometrial organoid reveal the miR-3194-5p/Aquaporin/S100A9 module in regulating trophoblast functions

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