Fetal brain response to maternal inflammation requires microglia [Developing_Microglia]
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ABSTRACT:
PROVIDER: PRJNA935748 | ENA |
REPOSITORIES: ENA
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Project description:Fetal brain response to maternal inflammation requires microglia
| PRJNA935747 | ENA
Project description:Fetal brain response to maternal inflammation requires microglia [Maternal_Inflammation]
| PRJNA935692 | ENA
Project description:In utero infection and maternal inflammation can adversely impact fetal brain development. Maternal systemic illness, even in the absence of direct fetal central nervous system infection, is associated with an increased risk of autism and schizophrenia in affected offspring. The cell types mediating the response of the fetal brain to maternal inflammation are largely unknown, hindering the development of therapies to prevent and treat adverse neuropsychiatric outcomes. Here, we show that microglia are enriched for expression of receptors for relevant pathogens and cytokines throughout embryonic development.
2024-05-07 | GSE225464 | GEO
Project description:In utero infection and maternal inflammation can adversely impact fetal brain development. Maternal systemic illness, even in the absence of direct fetal central nervous system infection, is associated with an increased risk of autism and schizophrenia in affected offspring. The cell types mediating the response of the fetal brain to maternal inflammation are largely unknown, hindering the development of therapies to prevent and treat adverse neuropsychiatric outcomes. Here, we show that microglia are enriched for expression of receptors for relevant pathogens and cytokines throughout embryonic development.
2024-05-07 | GSE225430 | GEO
Project description:Maternal immune activation is associated with adverse offspring neurodevelopmental outcomes, many mediated by in utero microglial programming. As microglia remain inaccessible throughout development, identification of noninvasive biomarkers reflecting fetal brain microglial programming could permit screening and intervention. We used lineage tracing to demonstrate the shared ontogeny between fetal brain macrophages (microglia) and fetal placental macrophages (Hofbauer cells) in a mouse model of maternal diet-induced obesity, and single-cell RNA-seq to demonstrate shared transcriptional programs. Comparison with human datasets demonstrated conservation of placental resident macrophage signatures between mice and humans. Single-cell RNA-seq identified common alterations in fetal microglial and Hofbauer cell gene expression induced by maternal obesity, as well as sex differences in these alterations. We propose that Hofbauer cells, which are easily accessible at birth, provide novel insights into fetal brain microglial programs, and may facilitate the early identification of offspring vulnerable to neurodevelopmental disorders in the setting of maternal exposures.
2024-06-05 | GSE252343 | GEO
Project description:Activation of the maternal immune system during pregnancy can fetal development, which can lead to postnatal susceptibility to a wide range of diseases, including cardiovascular, metabolic and psychiatric disorders. During maternal immune activation (MIA), the maternal body must balance its ressources between mounting an immune response and investing resources into continued metabolism and growth : both essential for survival of the fetus and a successful pregnancy. How the placenta responds to MIA over time and how it can protect the fetus is not well understood, and neither are the fetal consequences of MIA. Here, we characterised the response to an induced acute inflammation in maternal lungs over time across maternal and fetal organs, using a combination of omics-methods, imaging and integrative computational analysis. We found that the placenta, unlike other maternal organs, did not react by inducing a typical inflammatory response, but instead initially induced genes associated to strengthen tissue integrity and simultaneously reduced growth to prevent exposure to potential infections. Afterwards, a return to homeostasis was observed, with heightened biosynthesis and expression of endoplasmic reticulum (ER) stress genes. This mechanism likely protects the fetus from inflammation, as we observed no immune response in the fetal liver transcriptome. Instead, we observed metabolic adaptations in the fetus, including a release of docosahexaenoic acid (DHA) Notably, DHA has a crucial function for fetal brain development , and levels of triglyceride and phosphatidylcholine lipids that are necessary for transportation of DHA to the brain were also increased. This metabolic response is likely a combination of the placental MIA response and temporary maternal fasting, caused by MIA-induced fever and lack of nutrient intake. Our study shows, for the first time, the temporal and systemic response to MIA in lungs across maternal and fetal organs.
2024-06-13 | PXD039402 | Pride
Project description:This SuperSeries is composed of the SubSeries listed below.
2024-05-07 | GSE225465 | GEO
Project description:Pregnancy is a time of extreme metabolic demand that requires coordinated adaptations between mother and fetus. To determine the contributions of maternal and fetal metabolism to metabolic plasticity during gestation, mice with a liver-specific Carnitine Palmitoyltransferase-2 knockout mice (Cpt2-/-), or Pparα KO mice were subjected to late-gestation nutrient stress, a 24hr fast from E16.5 to E17.5. The fetal response to maternal fasting was dominated by maternal lipid metabolism as the loss of maternal hepatic fatty acid oxidation or Pparα signaling accelerated fetal liver transcriptional programing. These data show that maternal nutritional environment is a major driver of perinatal metabolic programing and plasticity.
2019-09-20 | GSE129368 | GEO
Project description:Myostatin (gene symbol: <i>Mstn</i>) is an autocrine and paracrine inhibitor of muscle growth. Pregnant mice with genetically reduced levels of myostatin give birth to offspring with greater adult muscle mass and bone biomechanical strength. However, maternal myostatin is not detectable in fetal circulations. Fetal growth is dependent on the maternal environment, and the provisioning of nutrients and growth factors by the placenta. Thus, this study examined the effect of reduced maternal myostatin on maternal and fetal serum metabolomes, as well as the placental metabolome. Fetal and maternal serum metabolomes were highly distinct, which is consistent with the role of the placenta in creating a specific fetal nutrient environment. There was no effect from myostatin on maternal glucose tolerance or fasting insulin. In comparisons between pregnant control and <i>Mstn</i><sup>+/-</sup> mice, there were more significantly different metabolite concentrations in fetal serum, at 50, than in the mother's serum at 33, confirming the effect of maternal myostatin reduction on the fetal metabolic milieu. Polyamines, lysophospholipids, fatty acid oxidation, and vitamin C, in fetal serum, were all affected by maternal myostatin reduction.
2023-06-08 | MTBLS3345 | MetaboLights
Project description:We investigated how late fetal liver (FL) mouse hematopoieitic stem and progenitor cells (HSPC) respond to inflammation, with the hypothesis that deficits in engagement of emergency myelopoiesis (EM) pathways could limit neutrophil output and contribute to perinatal neutropenia, ultimately explaining the susceptibility of neonates to inflammation and infection. We show that fetal HSPCs are biased toward erythroid and lymphoid cell production at steady state and fail to mount classical EM responses in vivo. Despite being capable of responding to EM-inducing stimuli in vitro, we find that maternal factors like interleukin-10 (IL-10) restrict fetal HSPCs from activating EM pathways in utero. Accordingly, we find that loss of maternal IL-10 restores EM activation in fetal HSPCs but at a cost of premature parturition. These results reveal the evolutionary trade-off inherent in maternal anti-inflammatory responses that maintain pregnancy but render the fetus susceptible to infection.
2024-02-29 | GSE240914 | GEO