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Unknown,Transcriptomics,Genomics,Proteomics

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RNA-seq of first-trimester chorionic villus for understanding the maintenance of early gestation as well as pathogenesis in pregnancy-related disorders

ABSTRACT: Implant failure and insufficient placental development are important causes of female infertility, recurrent miscarriage, and other pregnancy-related problems. A better understanding of gene expression profiling based on high-throughput sequencing technology is important for the study on the development of the placenta and the causes of pregnancy-related diseases. In this study, we collected 6 first-trimester chorionic villus and decidua tissues and obtained the transcriptome database on high-throughput sequencing. We performed routine principal component analysis (PCA) on these 12 samples and identified differentially expressed genes from samples with different sex background. And identified genes highly expressed in villus and decidua, respectively.

INSTRUMENT(S): Illumina Genome Analyzer

ORGANISM(S): Homo sapiens

SUBMITTER: Liu Yajun

PROVIDER: E-MTAB-8186 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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RNA-seq of the first-trimester decidua for understanding the maintenance of early gestation as well as pathogenesis in pregnancy-related disorders

Project description:Implant failure and insufficient placental development are important causes of female infertility, recurrent miscarriage, and other pregnancy-related problems. A better understanding of gene expression profiling based on high-throughput sequencing technology is important for the study on the development of the placenta and the causes of pregnancy-related diseases. In this study, we collected 6 first-trimester chorionic villus and decidua tissues and obtained the transcriptome database on high-throughput sequencing. We performed routine principal component analysis (PCA) on these 12 samples and identified differentially expressed genes from samples with different sex background. And identified genes highly expressed in villus and decidua, respectively.

2019-08-31 | E-MTAB-8181 | biostudies-arrayexpress

Comparative proteomics analysis of decidua tissues in early recurrent pregnancy loss

Project description:The project aimed to determine proteomics changes in decidua from patients suffering from unexplained early recurrent pregnancy loss (RPL) compared to women undergoing elective abortions. Comparative proteomics analysis by label-free data-independent LC-MS/MS was performed on fresh frozen decidua tissues from 19 RPL patients and 10 controls. Samples from EPL patients were preselected to include only patients with 2 or more recurrent pregnancy losses (RPL), no previous live birth, gestational week from 6-10 weeks and excluded fetal chromosomal abnormalities. Control samples were from women without history of previous miscarriage, ectopic pregnancy or preterm delivery, with at least one live born child, at 6-10 gestational weeks and without fetal chromosomal abnormalities. Patients and controls had no significant differences regarding age (Median age RPL = 30; Median age Controls = 34; Mann–Whitney U-test p = 0.082). The mean gestational weak (GW) was 7.9±1.0 weeks in the RPL group and 8.3±1.2 weeks in the control group, without statistically significant difference between groups (Median GW RPL = 8; Median GW Controls = 8; Mann–Whitney U-test p = 0.361).

2024-06-12 | PXD048340 | Pride

Timecourse single-cell ATACseq of whole rabbit embryos sampled across gestational days 7, 8 and 9

Project description:We characterised the chromatin accessibility profiles of 34,082 individual cells (post-QC) from whole rabbit embryos spanning gestational days 7, 8 and 9. Cell types were labelled via label transfer of simultaneously generated scRNA-seq of whole rabbit embryos at the same stages. This data was used to determine the chromatin changes occurring during the differentiation of trophoblast to syncytiotrophoblast cells. Cell libraries were prepared using the 10X Genomics Chromium platform.

2022-11-30 | E-MTAB-11804 | biostudies-arrayexpress

Genome wide methylation analysis of aged uterus and decidua

Project description:We use MeDIP-sequencing to measure global DNA methylation (5mC) in the uteri of young and aged C57BL/6 mice at day 3.5 (E3.5) of pregnancy, and of young and aged decidua at day 11.5 (E11.5) of pregnancy

2020-03-02 | GSE138375 | GEO

Proteomic characterisation of extracellular vesicles derived from first trimester placentae

Project description:This study investigated the proteomes of macro-, micro- and nanovesicles derived from the same first trimester human placenta to better understand the role that these extracellular vesicles (EVs) play in maternal adaptation during healthy pregnancy. During human pregnancy, the mother undergoes major physiological and immunological adaptations to accommodate the fetus. There is growing evidence that EVs extruded from the placental syncytiotrophoblast into the maternal blood may regulate these maternal adaptations. Placental EVs can be divided into macro-, micro- and nanovesicles based on their size. To date, it is unclear whether these differently sized EVs carry different protein cargos and have different effects on maternal responses.

2016-04-29 | PXD003003 | Pride

The transcriptional repressor Blimp-1/Prdm1 controls the maternal decidual response during pregnancy [RNA-seq]

Project description:Transcriptional profiling of E5.5 and E6.5 wild type and Blimp1 mutant decidua was performed using RNA-seq to identify maternal Blimp1 functions during pregnancy .

2020-05-01 | GSE141612 | GEO

Transcription profiling of human adipose tissue, decidua and placenta from patients with preeclampsia vs. unaffected indviduals reveals dysregulation of the circulating and tissue-based renin-angiotensin system in preeclampsia

Project description:Preeclampsia complicates more than 3% of all pregnancies in the United States and Europe. High-risk populations include women with diabetes, dyslipidemia, thrombotic disorders, hyperhomocysteinemia, hypertension, renal diseases, previous preeclampsia, twin pregnancies, and low socioeconomic status. In the latter case, the incidence may increase to 20% to 25%. Preeclampsia is a major cause of maternal and fetal morbidity and mortality. Preeclampsia is defined by systolic blood pressure of more than 140 mm Hg and diastolic blood pressure of more than 90 mm Hg after 20 weeks gestation in a previously normotensive patient, and new-onset proteinuria. Abnormal placentation associated with shallow trophoblast invasion (fetal cells from outer cell layer of the blastocyst) into endometrium (decidua) and improper spiral artery remodeling in the decidua are initial pathological steps. In this study we analyzed the renin-angiotensin system in adipose tissue, decidua and placenta from women with uneventful pregnancy and women with preeclampsia. We also analyzed the tissue by Affymetrix chips in a comparison study (control vs. preeclampsia) Experiment Overall Design: 6 affymetrix human expression chips (GPL570) were analyzed. Experiment Overall Design: They represent 3 tissues (pooled from 10 individuals each) from patients with preeclampsia and from patients with uneventful pregnancy (collected by cesaraen section). Tissues from patients with uneventful pregnancy are the controls in comparison to tissues of patients with preeclampsia.

2008-06-14 | E-GEOD-6573 | biostudies-arrayexpress

Bone marrow-derived progenitors become decidual cells and are essential for implantation and pregnancy maintenance

Project description:The pregnant decidua is infiltrated by many immune cells which are thought to originate in the bone marrow (BM) promoting pregnancy. In addition, BM-derived progenitor cells (BMDPCs) become non-hematopoietic endometrial cells. However, whether BMDPCs become non-immune decidual cells and their functional contribution to pregnancy were previously unknown. Here, we show that embryo implantation stimulates vast BMDPCs recruitment to decidua, where BMDPCs differentiate into non-hematopoietic stromal decidual cells. In addition, to determine the functional importance of BMDPCs to pregnancy, we used mice with endometrial stromal-specific defects precluding successful pregnancy. BM transplant (BMT) from wild-type (WT) into Hoxa11-/- mice, which lack decidualization, results in uterine transcriptional changes leading to stromal expansion, gland formation, and marked decidualization otherwise absent in Hoxa11-/- mice. By contrast, BMT from Hoxa11-/- into WT mice induces pregnancy loss. Importantly, in Hoxa11+/- mice, which have increased pregnancy losses, BMT from WT donors leads to normalized expression of numerous decidualization-related genes and rescue of pregnancy loss. Collectively, these findings reveal that BMDPCs have a novel non-hematopoietic physiologic contribution to decidual stroma, thereby playing indispensable roles in pregnancy establishment and maintenance.

2019-12-01 | GSE104842 | GEO

Competing endogenous RNA expression profiling in decidua after LPS treatment

Project description:To investigate the competing endogenous RNA expression changes in decidua under the inflammatory reaction, LPS (100 μg/kg body weight) was intraperitoneally injected into the mice at 15 days of pregnancy. Premature births has been found after approximately 48 h of treatment. When bleeding found in vagina, the decidua were selected in asepsis condition, and total RNA was isolated to analyze the expression of competing endogenous RNA compared with cesarean sections.

2023-05-06 | GSE150066 | GEO

Decidual NK cells Xiong et al 2013

Project description:Receptors of the KIR family on maternal Natural Killer cells in the decidua are believed to bind to Ligands such as HLA-C on trophoblast cells invading into the decidua from the placenta during early pregnancy. The resulting responses regulate the extent of trophoblast invasion. Genetic studies have implicated two members of the KIR family in particular as playing an important role: KIR2DL1 and KIR2DS1. The aim of this experiment was to determine what responses are generated when decidual NK cells bearing either KIR2DL1 or KIR2DS1 engage their HLA-C ligand.

2014-04-04 | E-MTAB-1784 | biostudies-arrayexpress

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