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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of human normal primary trophoblasts from placenta

ABSTRACT: 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.

ORGANISM(S): Homo sapiens

SUBMITTER: Brig Mecham

PROVIDER: E-GEOD-1302 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Increased measurement accuracy for sequence-verified microarray probes.

Mecham Brigham H BH Wetmore Daniel Z DZ Szallasi Zoltan Z Sadovsky Yoel Y Kohane Isaac I Mariani Thomas J TJ

Physiological genomics 20040811 3

Microarrays have been extensively used to investigate genome-wide expression patterns. Although this technology has been tremendously successful, it has suffered from suboptimal individual measurement precision. Significant improvements in this respect have been recently made. In an effort to further explore the underlying variability, we have attempted to globally assess the accuracy of individual probe sequences used to query gene expression. For mammalian Affymetrix microarrays, we identify a ...[more]

PMID: 15161964

Similar Datasets

primary trophoblast study

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

Primary term human trophoblasts exposed to ionizing irradiation

Project description:Primary term human trophoblasts were derived from placentas after a healthy pregnancy, and exposed to ionizing irradiation (vs sham) in vitro Primary human trophoblasts were irradiated 24 h after initial plating, defined as time zero. Cells were irradiated at 10 Gy using a Clinac 600C (Varian Medical Systems, Palo Alto, CA) with a 6 MV photon beam and a dose rate of 250 cGy/min. The flasks containing the cells were placed on 1.5 cm of bolus (a tissue equivalent material) since the maximum irradiation depth was 1.5 cm, which corresponded to the plated cell layer. Cells were analyzed 4, 8, and 24 h after irradiation or sham.

2013-08-16 | E-GEOD-49922 | biostudies-arrayexpress

miRNAs as Common Regulators of the Transforming Growth Factor (TGF)-β Pathway in the Preeclamptic Placenta and Cadmium-treated Trophoblasts: Links between the Environment, the Epigenome and Preeclampsia

Project description:Preeclampsia (PE) is a pregnancy disorder characterized by high blood pressure and proteinuria that can cause adverse health effects in both mother and fetus. There is no current cure for PE other than delivery of the fetus. While the etiology is unknown, poor placentation of the placenta due to aberrant signaling of growth and angiogenic factors has been postulated as causal factors of PE. In addition, environmental contaminants, such as the metal cadmium (Cd), have been linked to placental toxicity and increased risk of developing PE. Here, we use a translational study design to investigate genomic and epigenomic alterations in both placentas and placental trophoblasts, focused on the angiogenesis-associated transforming growth factor-beta (TGF-β) pathway. Genes within the TGF-β pathway displayed increased expression in both the preeclamptic placenta and Cd-treated trophoblasts. In addition, miRNAs that target the TGF-β pathway were also significantly altered within the preeclamptic placenta and Cd-treated trophoblasts. Integrative analysis resulted in the identification of a subset of Cd-responsive miRNAs, including miR-26a and miR-155, common to preeclamptic placentas and Cd-treated trophoblasts. These miRNAs have previously been linked to PE and are predicted to regulate members of the TGF-β pathway. Results from this study provide future targets for PE treatment.

2016-07-12 | GSE84260 | GEO

Trophoblast syncytialization maintains the placenta-heart axis

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

Primary term human trophoblasts exposed to ionizing irradiation

Project description:Primary term human trophoblasts were derived from placentas after a healthy pregnancy, and exposed to ionizing irradiation (vs sham) in vitro

2013-08-16 | GSE49922 | GEO

Primary human trophoblast from term placenta

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 Âµm), ESCd_40-70 (size between 40 and 70 Âµm), ESCd_lt40 (smaller than 40 Âµm) 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

Decreased CSTB, RAGE and Axl receptor is associated with Zika infection in the human placenta

Project description:Zika virus (ZIKV) compromises the placental integrity infecting the fetus. However, the mechanisms associated with ZIKV penetration into the placenta leading to fetal infection, are unknown. Cystatin B (CSTB), the receptor for advanced glycation end products (RAGE), and tyrosine-protein kinase receptor UFO (AXL) have been implicated in inflammation. The purpose of this work iis work aims to investigate CSTB, RAGE, and AXL receptor expression in ZIKV infected placental tissues at term. The hypothesis is that in ZIKV-infected placenta, there is overexpression of CSTB and increased inflammation affecting the RAGE and AXL receptor expression. Pathological analyses of 22 placentas were performed to determine changes caused by ZIKV infection. Quantitative proteomics, immunofluorescence, and Western Blot analysis were performed to analyze proteins and pathways affected by ZIKV infection in frozen placenta. Pathological The pathological analysis confirmed decreased size of capillaries, hyperplasia of Hofbauer cells, disruption in the trophoblasts layer, and cell agglutination associated to with ZIKV infection of placental tissue. ZIKV infection was mostly localized to the trophoblast layer. There was a significant decrease in the expression of CSTB, RAGE and AXLCSTB, RAGE and AXL expression in ZIKV positive placenta. This downregulation can impair immune responses and facilitate virus penetration into the placenta. Results are consistent with our previous studies and literature of on ZIKV infection by activation ofng Inflammasome and Pyroptosis through caspase 1 upregulation and affecting the cellular structure, tissue remodeling, and cell differentiation by upregulation of tubulin beta and heat shock protein 27.

2023-03-11 | PXD037388 | Pride

Gene expression in E18.5 Tex19.1-/- mouse placenta

Project description:Microarray experiment to identify changes in gene expression in 18.5 day post coitum Tex19.1-/- mouse placenta. Tex19.1 is expressed in trophectoderm-derived cells in the placenta. Tex19.1-/- placentas are small and have defects in junctional zone and labyrinth layers of the placenta, Tex19.1-/- embryos exhibit intra-uterine growth retardation. Data provides insight into the changes in gene expression and cell composition in Tex19.1-/- placentas. Six E18.5 Tex19.1-/- placentas (KO: four XX, two XY), four E18.5 Tex19.1+/- littermate control placentas (HET: four XX), and two E18.5 Tex19.1+/+ littermate control placentas (WT: two XY) are included in the analysis.

2013-03-08 | E-GEOD-41823 | biostudies-arrayexpress

Transcriptome profiling of human cytomegalovirus-infected trophoblasts

Project description:Placental infection plays a central role in the pathogenesis of congenital human cytomegalovirus (HCMV) infections and is a cause of fetal growth restriction and pregnancy loss. HCMV can replicate in some trophoblast cell types, but it remains unclear how the virus evades antiviral immunity in the placenta and how infection compromises placental development and function. Human trophoblast stem cells (TSCs) can be differentiated into extravillous trophoblasts (EVTs) and syncytiotrophoblasts (STBs). This study assessed the utility of TSCs as a model of HCMV infection in the first trimester placenta. TSCs and TSC-derived EVTs and STBs were infected with HCMV (TB40/Ewt-mCherry). RNA was isolated from infected cells at 24, 48, and 72 hours post-infection and Illumina RNA-Sequencing was used to measure viral and host gene expression. Viral gene expression in TSCs does not follow the kinetic patterns observed during lytic infection in fibroblasts. Canonical antiviral responses were largely not observed in HCMV-infected TSCs and TSC-derived trophoblasts. Rather, infection dysregulated factors involved in cell identity, differentiation, and WNT signaling.

2023-12-14 | GSE248772 | GEO

Expression Profiling of Term Placenta in Viviparous Mammals by RNA-Seq

Project description:The placenta is arguably the most anatomically variable organ in mammals. Understanding gene expression patterns among placentas from multiple species can illuminate the molecular basis of placenta function as well as potentially enrich our knowledge of the biology of obstetrical syndromes. We measured the expression profiles of the term placenta of multiple therian mammals using RNA-Seq. We identified multiple genes and transcripts which are differentially expressed across lineages including prolactin, relaxin, and galectins, as well as identifying the non-housekeeping genes which are core to placenta function (such as components of annexin complexes) in all species studied. RNAseq data from term placentas of 8 species with one sample per species

2017-05-12 | E-GEOD-79121 | biostudies-arrayexpress

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