Dataset Information

BLUEPRINT EpiVar 450K DNA methylation profiles of naive CD4+ T-cells, monocytes & neutrophils

ABSTRACT: BLUEPRINT EpiVar 450K DNA methylation profiles of naive CD4+ T-cells, > monocytes & neutrophils

PROVIDER: EGAS00001001456 | EGA |

REPOSITORIES: EGA

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Publications

Genome-wide analysis of differential transcriptional and epigenetic variability across human immune cell types.

Ecker Simone S Chen Lu L Pancaldi Vera V Bagger Frederik O FO Fernández José María JM Carrillo de Santa Pau Enrique E Juan David D Mann Alice L AL Watt Stephen S Casale Francesco Paolo FP Sidiropoulos Nikos N Rapin Nicolas N Merkel Angelika A Stunnenberg Hendrik G HG Stegle Oliver O Frontini Mattia M Downes Kate K Pastinen Tomi T Kuijpers Taco W TW Rico Daniel D Valencia Alfonso A Beck Stephan S Soranzo Nicole N Paul Dirk S DS

Genome biology 20170126 1

<h4>Background</h4>A healthy immune system requires immune cells that adapt rapidly to environmental challenges. This phenotypic plasticity can be mediated by transcriptional and epigenetic variability.<h4>Results</h4>We apply a novel analytical approach to measure and compare transcriptional and epigenetic variability genome-wide across CD14<sup>+</sup>CD16<sup>-</sup> monocytes, CD66b<sup>+</sup>CD16<sup>+</sup> neutrophils, and CD4<sup>+</sup>CD45RA<sup>+</sup> naïve T cells from the same 125 ...[more]

PMID: 28126036

Publication: 1/2

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Project description:Intra-amniotic infection, the invasion of microbes into the amniotic cavity resulting in an inflammatory process, is a clinical condition that can lead to adverse pregnancy outcomes for the mother and fetus as well as severe long-term neonatal morbidities. Despite much research focused on the consequences of intra-amniotic infection, there is still little knowledge about the functional roles of innate immune cells that respond to invading microbes. In the current study, we performed RNA sequencing of sorted neutrophils and monocytes/macrophages from amniotic fluid from women with intra-amniotic infection to determine the transcriptomic differences between these innate immune cells. Further, we sought to identify specific transcriptomic pathways that were significantly altered by the maternal or fetal origin of amniotic fluid neutrophils and monocytes, the presence of a severe fetal inflammatory response, and pregnancy outcome (i.e. preterm or term delivery). We showed that significant transcriptomic differences exist between amniotic fluid neutrophils and monocytes/macrophages from women with intra-amniotic infection that are indicative of the distinct roles these cells play. We also found that amniotic fluid monocytes/macrophages of fetal origin display impaired ability to clear out microbes invading the amniotic cavity compared to those of maternal origin. Notably, we demonstrate that the transcriptomic changes in amniotic fluid monocytes/macrophages are heavily associated with the severity of the fetal inflammatory response, suggesting that the trafficking of fetal neutrophils throughout the umbilical cord is partially modulated by monocytes/macrophages in the amniotic cavity. Finally, we show that amniotic fluid neutrophils and monocytes/macrophages from preterm deliveries display enhanced transcriptomic activity compared to those from term deliveries, highlighting the protective role of these innate immune cells in this vulnerable period. Collectively, these findings demonstrate the underlying complexity of local innate immune responses in women with intra-amniotic infection, and provide new insights into the functions of amniotic fluid neutrophils and monocytes in the amniotic cavity.

Dataset Information

BLUEPRINT EpiVar 450K DNA methylation profiles of naive CD4+ T-cells, monocytes & neutrophils

Publications

Genome-wide analysis of differential transcriptional and epigenetic variability across human immune cell types.

Similar Datasets

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