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Trophoblast epithelial-mesenchymal transition (EMT) in abnormally invasive placenta (AIP)

ABSTRACT: Trophoblast epithelial-mesenchymal transition (EMT) in abnormally invasive placenta (AIP)

PROVIDER: PRJNA412402 | ENA |

REPOSITORIES: ENA

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Trophoblast epithelial-mesenchymal transition (EMT) in abnormally invasive placenta (AIP)

Project description:Comparison of genes associated with the EMT between cytotrophoblast cells (CTB) and extravillous trophoblast cells (EVT) from normal third trimester placenta and abnormally invasive placenta (AIP)

2018-01-01 | GSE104350 | GEO

Transcriptomic profile of human placenta derived trophoblast organoid cultures with its tissue of origin, human placental villi.

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Establishment and comparison of human term placenta-derived trophoblast cells

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Project description:Trophoblast syncytialization maintains the placenta-heart axis

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Diminished trophoblast differentiation in early onset preeclampsia

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Project description:The developmental connection between the placenta and certain embryonic organs, such as the heart, is associated with normal pregnancy and complications, but how the placenta governs embryonic cardiogenesis is poorly understood. Trophoblasts fuse into a multinucleated syncytiotrophoblast (SynT) layer, primarily consisting of a placental materno-fetal interface. We identify that endogenous progesterone immunomodulatory binding factor 1 (PIBF1) is essential for trophoblast differentiation and fusion into SynT in human trophoblasts and mouse placentas. Moreover, SynT-derived PIBF1 enables the communication between SynT and adjacent vascular cells to develop the vascular network in the primary placenta and further impacts the early development of the embryonic cardiovascular system in an endocrine manner. Thus, SynT-derived factors and SynT itself in the placenta may play crucial roles in the proper organogenesis of other organs in the embryo.

2024-01-06 | GSE229265 | GEO

Single-nuclei RNA sequencing (snRNA-seq) uncovers trophoblast cell types and lineages in the mature bovine placenta

Project description:Ruminants have a semi-invasive placenta, which possess highly vascularized placentomes formed by maternal endometrial caruncles and fetal placental cotyledons and required for fetal development to term. The synepitheliochorial placenta of cattle contains at least two trophoblast cell populations, including uninucleate (UNC) and binucleate (BNC) cells that are most abundant in the cotyledonary chorion of the placentomes. The interplacentomal placenta is more epitheliochorial in nature with the chorion developing specialized areolae over the openings of uterine glands. Of note, the cell types in the placenta and cellular and molecular mechanisms governing trophoblast differentiation and function are little understood in ruminants. To fill this knowledge gap, the cotyledonary and intercotyledonary areas of the mature day 195 bovine placenta were analyzed by single nuclei analysis. Single-nuclei RNA-seq analysis found substantial differences in cell type composition and transcriptional profiles between the two distinct regions of the placenta. Based on clustering and cell marker gene expression, five different trophoblast cell types were identified in the chorion, including proliferating and differentiating UNC and two different types of BNC in the cotyledon. Cell trajectory analyses provided a framework for understanding the differentiation of trophoblast UNC into BNC. The upstream transcription factor binding analysis of differentially expressed genes identified a candidate set of regulator factors and genes regulating trophoblast differentiation. This foundational information is useful to discover essential biological pathways underpinning the development and function of the bovine placenta.

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Methylation profiling of human trophoblast organoids providing a model for maternal-fetal interactions in early pregnancy and placenta tissue for comparison

Project description:Generation of long-term, genetically-stable organoid cultures of extra-embryonic fetal trophoblast cells from human early placentas. Methylation profiling of the human trophoblast organoids and early placenta tissue.

2018-11-28 | E-MTAB-7204 | biostudies-arrayexpress

secretome of abnormally invasive placenta

Project description:accreta, increta, and percreta cases

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Epigenetic changes regulating the epithelial-mesenchymal transition in human trophoblast differentiation

Project description:The phenotype of term, human placental extravillous trophoblast (EVT) reflects both the first trimester differentiation from villous cytotrophoblast (CTB) and later gestational changes, including the loss of proliferative and invasive capacity. Invasion abnormalities, as observed in preeclampsia and placenta accreta spectrum, are not usually diagnosed until the second or even third trimester of pregnancy. Characterization of the normal processes at term, including arrest of invasion is therefore crucial. In this report gene expression analysis demonstrates definitively the epithelial-mesenchymal transition (EMT) mechanism which underlies differentiation and provides a trophoblast-specific EMT signature. Methylation profiling shows that CTB, already hypomethylated relative to other somatic cells, show a further degree of hypomethylation in their transition to EVT. A small fraction of genes show both gain of methylation and changes in gene expression. Prominent are genes involved in the EMT such as the transcription factor RUNX1, loss of which leads to reduced migratory capacity in JEG3 trophoblast cells. Examination of these EMT genes leads us to suggest that the gains of methylation may assist in maintaining term EVT in a mesenchymal but non-invasive state.

2024-07-03 | GSE256412 | GEO

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