Placenta-specific genes and their regulation during villous trophoblast differentiation.
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE130339 | GEO | 2019/11/25
REPOSITORIES: GEO
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Project description:The goal of this study was to identify the gene expression signatures of two closely related types of trophoblast in human placentas: villous cytotrophoblasts (vCTB) and proximal column extravillous trophoblasts (pcEVT). The two populations were isolated from first trimester placentas and identified using the specific surface markers, EGFR (vCTB) and HLA-G (pcEVT).
2017-02-01 | GSE80996 | GEO
Project description:We compare two groups of transcriptome profiles. They are 1) primary human trophoblasts (PHT) and 2) syncytiotrophoblast from human pluripotent stem cells. This data set represents the former data set and the latter has been deposited separately at GSE72712. Primary human trophoblasts (PHT) were purified cytotrophoblast populations from whole term placentas and then cultured in vitro. The cytotrophoblasts were cultured for short (9 h) or long (48 h) term that show undifferentiated (PHTu) or differentiated (PHTd) phenotype that led syncytialization, respectively. Transcriptome profiles of PHTu and PHTd were compared with three size fractioned syncytiotrophoblasts and trophoblasts from human pluripotent stem cells that are named ESCd_gt70 (greater than 70 µm), ESCd_40-70 (size between 40 and 70 µm), ESCd_lt40 (smaller than 40 µm) and undifferentiated progenitor (ESCu; see GSE72712). Primary human trophoblasts (PHT) were derived and cultured from three term human placentas obtained by the Obstetrical Specimen Procurement Unit from women after a healthy pregnancy, labor, and delivery at Magee-Womens Hospital of the University of Pittsburgh Medical Center. Isolated PHT lines obtained from three individual (1 female and 2 male) placentas were cultured separately.
2016-04-06 | E-GEOD-73016 | biostudies-arrayexpress
Project description:Placenta-specific genes and their regulation during villous trophoblast differentiation.
| PRJNA535523 | ENA
Project description:The human placenta maintains pregnancy and supports the developing fetus by providing nutrition, gas-waste exchange, hormonal regulation, and an immunological barrier from the maternal immune system. The villous syncytiotrophoblast carries most of these functions and provides the interface between the maternal and fetal circulatory systems. The syncytiotrophoblast is generated by the biochemical and morphological differentiation of underlying cytotrophoblast progenitor cells. The dysfunction of the villous trophoblast development is implicated in placenta-mediated pregnancy complications. Herein, we describe gene modules and clusters involved in the dynamic differentiation of villous cytotrophoblasts into the syncytiotrophoblast. During this process, the immune defense functions are first established, followed by structural and metabolic changes, and then by peptide hormone synthesis. We describe key transcription regulatory molecules that regulate gene modules involved in placental functions. Based on transcriptomic evidence, we infer how villous trophoblast differentiation and functions are dysregulated in preterm preeclampsia, a life-threatening placenta-mediated obstetrical syndrome for the mother and fetus. In the conclusion, we uncover the blueprint for villous trophoblast development and its impairment in preterm preeclampsia, which may aid in the future development of non-invasive biomarkers for placental functions and early identification of women at risk for preterm preeclampsia as well as other placenta-mediated pregnancy complications.
| S-EPMC7013556 | biostudies-literature
Project description:We compare two groups of transcriptome profiles. They are 1) primary human trophoblasts (PHT) and 2) syncytiotrophoblast from human pluripotent stem cells. This data set represents the former data set and the latter has been deposited separately at GSE72712. Primary human trophoblasts (PHT) were purified cytotrophoblast populations from whole term placentas and then cultured in vitro. The cytotrophoblasts were cultured for short (9 h) or long (48 h) term that show undifferentiated (PHTu) or differentiated (PHTd) phenotype that led syncytialization, respectively. Transcriptome profiles of PHTu and PHTd were compared with three size fractioned syncytiotrophoblasts and trophoblasts from human pluripotent stem cells that are named ESCd_gt70 (greater than 70 µm), ESCd_40-70 (size between 40 and 70 µm), ESCd_lt40 (smaller than 40 µm) and undifferentiated progenitor (ESCu; see GSE72712).
2016-04-06 | GSE73016 | GEO
Project description:Seven patient paired primary human HLA-G+ extravillous trophoblasts (EVT) and Villous trophoblasts (VT) obtained from 1st trimester (7-9 weeks) villous tissue were obtained. RNA was isolated directly after isolation and purification using FACS sort for CD45-HLA-G+ (EVT) and CD45-HLA-G-EGFR1+ (VT) fractions. Expression profiles were compared to two samples of the choriocarcinoma cell line JEG-3 and four samples of decidual stromal cells (DSC) at passage 2 after cell culture.
2015-05-15 | E-MTAB-3217 | biostudies-arrayexpress
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
Project description:Oxidative stress plays a crucial role in preeclampsia (PE) pathogenesis. Evidence indicates altered microRNAs (miRNAs) expression in PE, however, the relationship between oxidative stress and miRNA changes in placenta as a potential mechanism involved in PE is not fully elucidated. In the present study, we investigate the impact of increased oxidative stress on miRNA and mRNA expression profiles of genes known to be associated with PE in villous 3A first trimester trophoblast cells. Cells were exposed to H2O2 at 10 different concentrations (0-1 mM) for 0.5, 4, 24, and 48 h. Cytotoxicity was determined using the SRB assay and data was used to calculate the IC50 of H2O2. Total RNA was extracted after short-term exposure (4 h) to H2O2 for miRNA expression profiling. H2O2 exerted a concentration and time-dependent cytotoxicity on 3A trophoblast cells. Short-term exposure of 3A cells to low concentration of H2O2 (5% of IC50) significantly altered miRNA profile as evidenced by significant changes in 195 out of 595 evaluatable miRNAs. Short-term exposure of villous first trimester trophoblasts to low concentrations of H2O2 significantly alters miRNA profile. Oxidative stress plays a crucial role in preeclampsia (PE) pathogenesis. Evidence indicates altered microRNAs (miRNAs) expression in PE, however, the relationship between oxidative stress and miRNA changes in placenta as a potential mechanism involved in PE is not fully elucidated. In the present study, we investigate the impact of increased oxidative stress on miRNA and mRNA expression profiles of genes known to be associated with PE in villous 3A first trimester trophoblast cells. Cells were exposed to H2O2 at 10 different concentrations (0-1 mM) for 0.5, 4, 24, and 48 h. Cytotoxicity was determined using the SRB assay and data was used to calculate the IC50 of H2O2. Total RNA was extracted after short-term exposure (4 h) to H2O2 for miRNA expression profiling. H2O2 exerted a concentration and time-dependent cytotoxicity on 3A trophoblast cells. Short-term exposure of 3A cells to low concentration of H2O2 (5% of IC50) significantly altered miRNA profile as evidenced by significant changes in 195 out of 595 evaluatable miRNAs. Short-term exposure of villous first trimester trophoblasts to low concentrations of H2O2 significantly alters miRNA profile.
2015-12-31 | GSE63999 | GEO
Project description:Primary cultures of human trophoblasts were established from normal, term placenta. Cells were treated five hours after plating. This sample was treated with 1 uM GW7845. RNA was extracted after 48 hours of treatment using Tri-reagent. Each sample was pooled from three individual placentas prior to target generation. Targets were produced using standard Affymetrix procedures from 30ug of total RNA. Keywords: parallel sample
2004-04-13 | GSE1302 | GEO
Project description:Primary cultures of human trophoblasts were established from normal, term placenta. Cells were treated five hours after plating. This sample was treated with 1 uM GW7845. RNA was extracted after 48 hours of treatment using Tri-reagent. Each sample was pooled from three individual placentas prior to target generation. Targets were produced using standard Affymetrix procedures from 30ug of total RNA.
2008-06-11 | E-GEOD-1302 | biostudies-arrayexpress