ABSTRACT: The transcriptomic profile of human microvascular endothelial cells after exposure to preeclamptic or normotensive third trimester trophoblast debris
Project description:The human placenta is covered by a single multinucleated fetal cell, the syncytiotrophoblast, which is bathed in maternal blood. During all pregnancies, membrane enclosed extracellular vesicles derived from the syncytiotrophoblast are extruded into the maternal blood.The large size of these extracellular vesicles (diameter larger than 10 µm) is referred to as trophoblast debris in this study. We have shown in the past that trophoblast debris from first trimester can contribute to maternal cardiovascular physiological adaptations. This study aimed to characterise the transcriptional changes that occur in human vascular endothelial cells following exposure to preeclmaptic and normotensive trophoblast debris. Primeview human gene expression arrays were used to probe transcriptomic changes in human microvascular endothelial cells after exposure to preeclmaptic or normotensive trophoblast debris for 21 hours
Project description:Small RNA sequencing on trophoblast debris samples was employed to profile the small RNA contents in either normotensive or preeclamptic trophoblast debris. We have identified 1278 miRNAs and 2646 non-miRNA small RNA fragments across all trophoblast debris samples. Differential expression analysis was executed by iSRAP small RNA sequencing analysis pipeline and we identified 16 miRNAs, 5 tRNA fragments from 3 different tRNAs, 13 snRNA fragments and 85 rRNA fragments differentially contained between preeclamptic and normotensive trophoblast debris
Project description:The human placenta is covered by a single multinucleated fetal cell, the syncytiotrophoblast, which is bathed in maternal blood. During all pregnancies, membrane enclosed extracellular vesicles derived from the syncytiotrophoblast are extruded into the maternal blood.The large size of these extracellular vesicles (diameter larger than 10µm) is referred to as trophoblastic debris in this study. We have shown in the past that endothleial cells are involved in clearence of this trophoblastic debris and induction of immune tolerence by trophoblastic debris.This study aimed to characterise the transcriptional changes that occur in human vascular endothelial cells following exposure to trophoblastic debris from normal first trimester placentae. Microarrays were used to probe transcriptomic changes 2 and 21 hours after exposure of endothelial cells (Human microvascular endothelial cell line,HMEC-1) to trophoblastic debris from normal first trimester placentae Trophoblastic debris were isolated by low speed centrifugation from three individual first trimester human placentae (three biological replicates). The protein content in trophoblastic debris was measured by BCA assay. HMEC-1 was co-cultured with trophoblastic debris (60ug/ml total debris protein contents) for either 2 or 21 hours before RNA extraction. Untreated HMEC-1 at 2 and 21 hours were used as controls.In total, 12 samples were analyzed.
Project description:The human placenta is covered by a single multinucleated fetal cell, the syncytiotrophoblast, which is bathed in maternal blood. During all pregnancies, membrane enclosed extracellular vesicles derived from the syncytiotrophoblast are extruded into the maternal blood.The large size of these extracellular vesicles (diameter larger than 10µm) is referred to as trophoblastic debris in this study. We have shown in the past that endothleial cells are involved in clearence of this trophoblastic debris and induction of immune tolerence by trophoblastic debris.This study aimed to characterise the transcriptional changes that occur in human vascular endothelial cells following exposure to trophoblastic debris from normal first trimester placentae. Microarrays were used to probe transcriptomic changes 2 and 21 hours after exposure of endothelial cells (Human microvascular endothelial cell line,HMEC-1) to trophoblastic debris from normal first trimester placentae
Project description:Placental Tissue Samples from 36 women (17 normotensive women, denoted with a P, and 19 preeclamptic women, denoted with a Q) were analyzed for differenital methylation Preeclamptic womene were compared direclty to normotensive women controlling for gestational age, race, maternal age, and baby sex 36 samples were analyzed: 17 normotensive, 19 preeclamptic
Project description:Placental Tissue Samples from 36 women (17 normotensive women, denoted with a P, and 19 preeclamptic women, denoted with a Q) were analyzed for differenital methylation Preeclamptic womene were compared direclty to normotensive women controlling for gestational age, race, maternal age, and baby sex
Project description:Placental Tissue Samples from 36 women (17 normotensive women, denoted with a P, and 19 preeclamptic women, denoted with a Q) were analyzed for differenital methylation Preeclamptic womene were compared direclty to normotensive women controlling for gestational age, race, maternal age, and baby sex
Project description:Maternal serum levels of calcyclin and heat shock protein 90 were compared throughout pregnancy from the first trimester till term among women with preeclampsia (PE) and age-matched normotensive pregnant controls (C). Serum samples from two different studies, a nested case-control study embedded in the Rotterdam periconception cohort and the Lepra Study both conducted at the Erasmus MC in Rotterdam. They were collected in the first, second and third trimester of pregnancy in 43 patients with preeclampsia, consisting of 20 early-onset and 23 late-onset preeclampsia, and 46 normotensive pregnant controls. A serum based 2D LC-MS assay on Parallel Reaction Monitoring mode using a high resolution tribrid mass spectrometer was used to quantify both calcyclin and heat shock protein 90.
Project description:Placental Tissue Samples from 36 women (17 normotensive women, denoted with a P, and 19 preeclamptic women, denoted with a Q) were analyzed for differenital methylation Preeclamptic womene were compared direclty to normotensive women controlling for gestational age, race, maternal age, and baby sex 36 samples were analyzed, 18 in each group
