The role of chorionic PGRMC2 and HLA-G in maintaining immune homeostasis at the chorio-decidual interface
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1055482 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR27318500.fastq.gz | Fastqsanger.gz | |||
| SRR27318501.fastq.gz | Fastqsanger.gz | |||
| SRR27318502.fastq.gz | Fastqsanger.gz | |||
| SRR27318503.fastq.gz | Fastqsanger.gz | |||
| SRR27318504.fastq.gz | Fastqsanger.gz |
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Project description:The chorio-decidual interface (CDi) is formed by chorion trophoblasts (CTCs) and immune cell-rich decidua (DECs) cells. The roles of human leukocyte antigen (HLA)-G and progesterone receptor membrane component 2 (PGRMC2) in mediating innate immune homeostasis at this maternal-fetal interface interface were investigated.
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Project description:Congenital cytomegalovirus (cCMV) is the most common intrauterine infection, leading to infant neurodevelopmental disabilities. An improved knowledge of correlates of protection against cCMV is needed to guide prevention strategies. Here, we employed a unique ex vivo model of human CMV (HCMV) infection in decidual tissues of women with and without preconception immunity, recapitulating nonprimary versus primary infection at the authentic maternofetal transmission site. We showed that decidual tissues of women with preconception immunity exhibited intrinsic resistance to HCMV, mounting a rapid activation of tissue resident memory CD8+ and CD4+ T cells upon nonprimary infection. We further revealed the role of HCMV-specific decidual-tissue resident CD8+ T cells in local protection against nonprimary HCMV infection. The findings could inform the development of vaccine against cCMV, and provide insights for further studies of the integrity of immune defense against cCMV and other pathogens in the human maternal-fetal interface.
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Project description:Maternal and fetal monocytes and tissue macrophages (decidual macrophages, Hofbauer cells) at the feto-maternal interface have different methylome. Paired and balanced design. We compared maternal blood monocytes (MB) vs. cord blood monocytes (CB), maternal blood monocytes (MB) vs. decidual macrophages (Deci), cord blood monocytes (CB) vs placental macrophages (villi) and decidual macrophages (Deci) vs. placental macrophages (villi).
2011-11-15 | E-GEOD-31680 | biostudies-arrayexpress
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
Project description:A Toxoplasma gondii infection during pregnancy can result in spontaneous abortion, preterm labor, or congenital fetal defects. The decidual immune system plays a critical role in regulating the immune micro-environment and in the induction of immune tolerance. To better understand the factors that mediate the decidual immune response associated with the T. gondii infection, a large-scale study employing TMT proteomics was conducted to characterize the differential decidual immune proteomes from infected and uninfected human decidual immune cells samples. The decidual immune cells from 105 human voluntary abortion tissues were purified, and of the 5510 unique proteins identified, 181 proteins were found to be differentially abundant (>1.2-fold cutoff, P＜0.05) in the T. gondii-infected decidual immune cells. 11 proteins of 181 differentially expressed proteins associated with trophoblast invasion, placental development, intrauterine fetal growth, and immune tolerance were verified using a quantitative real-time polymerase chain reaction and western blotting. This systematic research identified a broad range of immune factors in human decidual immune cells, shedding a new insight into the decidual immune molecular mechanism for abnormal pregnancy outcomes associated with T. gondii infection.
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Project description:To understand the regulation of cytotoxicity by decidual CD8+ T cells (CD8+ dT) at the maternal-fetal interface, gene expression analysis of CCR7-CD45RA- effector-memory CD8+ T cells isolated from peripheral blood of unrelated healthy controls and decidual tissue from first trimester (6-12 weeks) and term (>37 weeks) pregnancy was performed. Furthermore, first trimester decidual effector-memory CD8+ T cells were stimulated with anti-CD3/CD28 in the presence of IL-2 for 12 hours or 72 hours. RNA was isolated and gene expression profiles were generated by employing Affymetrix HG_U133_Plus 2 arrays on the Affymetrix Geneatlas system.
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Project description:Maternal and fetal monocytes and tissue macrophages (decidual macrophages, Hofbauer cells) at the feto-maternal interface have different methylome.
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Project description:Problem: Mucosal-Associated Invariant T (MAIT) cells have been recently identified at the maternal-fetal interface. However, transcriptional programming of decidual MAIT cells in pregnancy remains poorly understood. Method of Study: We employed a multiomic approach to address this question. Mononuclear cells from the decidua basalis and parietalis, and control PBMCs, were analyzed via flow cytometry to investigate MAIT cells in the decidua and assess their transcription factor expression. In a separate study, both decidual and matched peripheral MAIT cells were analyzed using Cellular Indexing of Transcriptomes and Epitopes by Sequencing (CITE-seq) coupled with gene expression analysis. Lastly, decidual MAIT cells were stimulated with E. coli and expression of MR1 by antigen presenting cells was measured to evaluate decidual MAIT cell function. Results: First, we identified MAIT cells in both the decidua basalis and parietalis. CITE-seq, coupled with scRNAseq gene expression analysis, highlighted transcriptional programming differences between decidual and matched peripheral MAIT cells at a single cell resolution. Transcription factor expression analysis further highlighted transcriptional differences between decidual MAIT cells and non-matched peripheral MAIT cells. Functionally, MAIT cells are skewed towards IFNg and TNFa production upon stimulation, with E. coli leading to IFNg production. Lastly, we demonstrate that MR1, the antigen presenting molecule restricting MAIT cells, is expressed by decidual APCs. Conclusion: MAIT cells are present in the decidua basalis and obtain a unique gene expression profile. The presence of MR1 on APCs coupled with in vitro activation by E. coli suggests that MAIT cells might be involved in tissue-repair mechanisms at the maternal-fetal interface.
2021-09-07 | GSE183421 | GEO
Project description:Uterine macrophages are thought to play an important regulatory role at the maternal-fetal interface. We report here a unique gene expression pattern intrinsic of first trimester decidual monocytes/macrophages, but not of their blood counterparts. The micro-array data comprises approximately 14,000 genes. Some of the key findings were confirmed by real time PCR or secreted protein measurements. A large number of regulated genes were found to be functionally related to immunomodulation and tissue remodelling, corroborating polarization patterns of differentiated macrophages of M2 phenotype. These include M2 markers such as CCL-18, CD209, insulin-like growth factor (IGF)-1, mannose receptor c type (MRC)-1 and fibronectin-1. Further, the selective up-regulation of triggering receptor expressed on myeloid cells (TREM)-2, alpha-2-macroglobulin (A2M) and prostaglandin D2 synthase (PGDS) provides new insights into the regulatory function of decidual macrophages in pregnancy. In addition, a large number of regulated genes in the micro-array analysis were related to cell cycle regulation. Taken together, molecular characterization of decidual macrophages presents a unique transcriptional profile replete with important components for fetal immunoprotection. Experiment Overall Design: Comparative expression analyis of CD14+ cells isolated either from blood or decidua. Decidual tissue and blood was obtained from eleven women between 18 and 41 years of age
2008-06-20 | E-GEOD-10612 | biostudies-arrayexpress
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.
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