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Gene expression in amniotic menbrane-derived cells (mesenchymal stromal cells and epithelial cells) and expression signatures of these two types of cells after IL-10 stimulation

ABSTRACT: To further cell therapy, we have investigated gene expression profile of amniotic membrane-derived, two types of cells: mesenchymal stromal cells and epithelial cells. We previously reported that amniotic membrane derived cells are immunologically privileged and produced only minimal immune reactivity and that these cells, when stimulated by immunosuppressive agent IL-10, had higher differential potential for cardiomyocyte and more immunotolerance. To analysis these phenomenons, we performed gene expression profile of two types of cells after IL10 stimulation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE78095 | GEO | 2017/06/30

SECONDARY ACCESSION(S): PRJNA312600

REPOSITORIES: GEO

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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.

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Gene expression in amniotic menbrane-derived cells (mesenchymal stromal cells and epithelial cells) and expression signatures of these two types of cells after IL-10 stimulation

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