Project description:Analysis of the effects of cell shape on human coronary artery endothelial cell transcription. The hypothesis is that defined alterations in endothelial cell shape uniquely affect the endothelial transcriptome. Human coronary artery endothelial cells were plated onto spatially defined micropatterns (Cytoo) forcing them to conform to Disc, Crossbow, H, Y, or L shapes. As a control, human coronary artery endothelial cells were plated on non-restrictive areas of the Cytoo growth plate.
Project description:Analysis of the effects of cell shape on human coronary artery endothelial cell transcription. The hypothesis is that defined alterations in endothelial cell shape uniquely affect the endothelial transcriptome. Human coronary artery endothelial cells were plated onto spatially defined micropatterns (Cytoo) forcing them to conform to Disc, Crossbow, H, Y, or L shapes. As a control, human coronary artery endothelial cells were plated on non-restrictive areas of the Cytoo growth plate. Cells were serum starved for 48 hours prior to mRNA collection.
Project description:Analysis of the effects of cell shape on human coronary artery endothelial cell transcription. The hypothesis is that defined alterations in endothelial cell shape uniquely affect the endothelial transcriptome. Human coronary artery endothelial cells were plated onto spatially defined micropatterns (Cytoo) forcing them to conform to Disc, Crossbow, H, Y, or L shapes. As a control, human coronary artery endothelial cells were plated on non-restrictive areas of the Cytoo growth plate. RNA was collected after 24 hours growth on the restricted or non-restricted growth patterns and subjected to whole genome microarray analysis.
Project description:Analysis of the effects of cell shape on human coronary artery endothelial cell transcription. The hypothesis is that defined alterations in endothelial cell shape uniquely affect the endothelial transcriptome. Human coronary artery endothelial cells were plated onto spatially defined micropatterns (Cytoo) forcing them to conform to Disc, Crossbow, H, Y, or L shapes. As a control, human coronary artery endothelial cells were plated on non-restrictive areas of the Cytoo growth plate. Cells were serum starved for 48 hours prior to mRNA collection. RNA was collected after 48 hours growth on the restricted or non-restricted growth patterns and subjected to whole genome microarray analysis.
Project description:Vascular endothelial cells play an important role in the development of coronary artery disease, their injury leads to coronary heart disease and atherosclerosis. This study aimed to elucidate the role of FOXO3-regulated target gene expression and alternative splicing in vascular endothelial cell injury in coronary artery disease
Project description:Currently, it is well established that human endothelial cells (ECs) are characterised by a significant heterogeneity between distinct blood vessels, e.g., arteries, veins, capillaries, and lymphatic vessels. Further, even ECs belonging to the same lineage but grown under different flow patterns (e.g., laminar and oscillatory or turbulent flow) ostensibly have distinct molecular profiles defining their physiological behaviour. Human coronary artery endothelial cells (HCAEC) and human internal thoracic artery endothelial cells (HITAEC) represent two cell lines inhabiting atheroprone and atheroresistant blood vessels (coronary artery and internal thoracic artery, respectively). Resistance of the internal mammary artery to atherosclerosis has been largely attributed to the protective phenotype of HITAEC which reportedly produce higher amounts of vasodilators including nitric oxide (NO) through the respective signaling pathways. However, this hypothesis has not been adequately addressed hitherto as proteomic profiling of HCAEC and HITAEC in a head-to-head comparison setting has not been performed.
Project description:Phenotypic heterogeneity among arterial ECs is particularly relevant to atherosclerosis since the disease occurs predominantly in major arteries, which vary in their atherosusceptibility. To explore EC heterogeneity, we used DNA microarrays to compare gene expression profiles of freshly harvested porcine coronary and iliac artery ECs. We demonstrate that in vivo the endothelial transcriptional profile of a coronary artery (the right coronary artery) is intrinsically different from that of a major conduit vessel (the external iliac artery), and that this difference is consistent with former vessel being more prone to atherosclerosis. Keywords: coronary atherosclerosis, endothelial heterogeneity, microarray, gene expression Endothelial cells were freshly harvest from right coronary, left and right iliac arteries from four pigs. RNA were isolated and expression profiles were obtained using olig microarrays.
