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Hypoxia activates Notch signaling to promote HTR-8/SVneo trophoblast cell migration

ABSTRACT: Hypoxia activates Notch signaling to promote HTR-8/SVneo trophoblast cell migration

PROVIDER: PRJNA574845 | ENA |

REPOSITORIES: ENA

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Hypoxia induces trophoblast migration and invasion gene pathways, a subset of which are reduced in preeclampsia

Project description:Placentation requires the proper regulation of extravillous trophoblast (EVT) migration and invasion into the decidua and maternal vasculature, processes which are initiated in physiologic hypoxic conditions. Abnormal EVT migration and/or invasion have been suggested to lead to pregnancy complications, such as preeclampsia. The objectives of this study are to determine how exposure to hypoxia impacts gene expression and cellular motility of first trimester trophoblasts, and to assess if expression of migration-associated genes is dysregulated in 2nd trimester chorionic villous samples (CVS) from preeclampsia pregnancies relative to CVS from healthy pregnancies. The 1st trimester trophoblast cell line, HTR8/SVneo, was used to investigate the relationship between hypoxia and Notch signaling in trophoblast migration and invasion. RNA sequencing and quantitative RT-PCR analyses show that exposure to hypoxia (2.5% O2) activates Notch signaling in HTR-8/SVneo. We demonstrate that exposure of HTR-8/SVneo to hypoxia induces expression of genes associated with cellular migration and invasion and increases HTR-8/SVneo cellular migration and invasion, whereas inhibition of gamma-secretase decreases Notch signaling and decreases HTR-8/SVneo migration and invasion. Analysis of RNA sequencing data from CVS of preeclampsia and uncomplicated pregnancies identified significant differentially expressed genes that are involved in cellular migration and invasion. Decreased expression of migration and invasion genes in CVS from preeclampsia pregnancies, may impair trophoblast migration and invasion in the 2nd trimester of pregnancy, resulting in the development of preeclampsia.

2021-08-05 | GSE155750 | GEO

Gene expression in HTR-8/SVneo cells exposed to hypoxia or treated with sodium L-lactate

Project description:Chronical hypoxia is a common occurrence following reduced uteroplacental blood flow resulting from incomplete trophoblast invasion and abnormal vascular remodeling of the spiral arteries in PE. Hypoxia can lead to active glycolysis, which increases the production of lactate, a substrate for histone lactylation. To screen for genes that may be regulated by histone lactylation in PE placentas, we performed RNA-seq in HTR-8/SVneo cells under hypoxia or treated with sodium L-lactate. The results showed that 3578 genes were upregulated in the HTR-8/SVneo cells under hypoxia compared to those under normoxia, and 355 genes were upregulated in HTR-8/SVneo cells treated with sodium L-lactate compared to the control cells. 152 upregulated genes in the HTR-8/SVneo cells under hypoxia and those treated with sodium L-lactate overlapping.

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Differential expressed genes in EGF treated HTR-8/SVneo versus untreated control by next generation sequencing

Project description:The goal of this study is to compare mRNAs expressed by EGF treated HTR-8/SVneo cells to iRNAs expressed in untreated control HTR-8/SVneo cells to identify various genes which play a role during EGF-mediated HTR-8/SVneo cell invasion

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Differential expression of miRNAs in EGF treated HTR-8/SVneo versus untreated control by next generation sequencing

Project description:The goal of this study is to compare miRNAs expressed by EGF treated HTR-8/SVneo cells to miRNAs expressed in untreated control HTR-8/SVneo cells to identify micro RNAs which play a role during EGF-mediated HTR-8/SVneo cell invasion

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Differential expression of miRNAs in HGF treated HTR-8/SVneo versus untreated control by next generation sequencing

Project description:The goal of this study is to compare miRNAs expressed by HGF treated HTR-8/SVneo cells to miRNAs expressed in untreated control HTR-8/SVneo cells to identify micro RNAs which play a role during HGF-mediated HTR-8/SVneo cells invasion

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Differential expression of mRNAs in IFN-gamma treated HTR-8/SVneo versus untreated control by next generation sequencing

Project description:The goal of this study is to compare genes expressed by IFN-gamma treated HTR-8/SVneo cells to genes expressed in untreated control HTR-8/SVneo cells to identify genes which play a role during IFN-gamma-mediated HTR-8/SVneo cells invasion

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Differential expression of miRNAs in IFN-gamma treated HTR-8/SVneo versus untreated control by next generation sequencing

Project description:The goal of this study is to compare miRNAs expressed by IFN-gamma treated HTR-8/SVneo cells to miRNAs expressed in untreated control HTR-8/SVneo cells to identify micro RNAs which play a role during IFN-gamma-mediated HTR-8/SVneo cells invasion

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Expression data from HTR-8/Svneo side population (SP) and non-side population (NSP) cells

Project description:Immature cell populations, including stem cells and progenitor cells, can be found in “side-population (SP)” cells. Although SP cells isolated from some adult tissues have been reported elsewhere, isolation and characterization of human trophoblast SP cells remained to be reported. We used microarrays to detail the global program of gene expression underlying cell differentiation and identified up-regulated genes of SP cells. HTR-8/SVneo SP cells or NSP cells were isolated using a cell sorter for RNA extraction and hybridization on Affymetrix microarrays. To obtain many SP or NSP cells, we cultured a large amount of HTR-8/SVneo cells (1×10^7 cells). The cells were labeled with 2.5µg/ml Hoechst 33342 dye (Molecular Probes, Eugene, OR) for 120 minutes at 37 ℃, either alone or in combination with 50 µmol/L verapamil (Sigma-Aldrich, ST Louis, MO). Finally, the cells were then passed through EPICS ALTRA HyPerSort (Beckman Coulter, Fullerton, CA) using dual wavelength analysis (blue, 424-444 nm; red, 675 nm) after excitation with 350 nm UV light.

2011-03-12 | E-GEOD-27909 | biostudies-arrayexpress

Effect of IL-11 on gene expression in JEG-3 and HTR-8/SVneo trophoblastic cells

Project description:IL-11 increases the invasiveness of JEG-3 cells while, reduces the invasiveness of HTR-8/SVneo cells. This study examines the effect of IL-11 on gene expression in trophobalstic cell models viz. JEG-3 and HTR-8/SVneo cells to resolve the controversies associated with the IL-11 mediated regulation of the invasiveness of these two cell lines. JEG-3 and HTR-8/Svneo cells were stimulated with IL-11 (200 ng/ml) for 24 h in pain medium keeping un-treated cells as control. After 24 h of stimulation, total RNA was isolated from these cells and used for the microarray experiments. These experiments were performed once.

2011-11-04 | E-GEOD-31608 | biostudies-arrayexpress

Effect of LIF and IL-6 on gene expression in JEG-3 and HTR-8/SVneo trophoblastic cells

Project description:Both leukemia inhibitory factor (LIF) and interleukin-6 (IL-6) increase the invasiveness of JEG-3 and HTR-8/SVneo cells. This study examines the effect of LIF and IL-6 on gene expression in trophoblastic cell models viz. JEG-3 and HTR-8/SVneo cells to decipher the molecular basis of the increase in invasiveness. JEG-3 and HTR-8/Svneo cells were stimulated with LIF (50 ng/ml) and IL-6 (100 ng/ml) for 24 h in plain medium keeping untreated cells as a control. After 24 h of stimulation, total RNA was isolated from these cells and used for microarray experiments. These experiments were performed once.

2012-05-31 | E-GEOD-36202 | biostudies-arrayexpress

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