Project description:top down and bottom up proteomics files for
Lactate and Immunomagnetic-purified iPSC-derived Cardiomyocytes Generate Comparable Engineered Cardiac Tissue Constructs
Project description:Organophosphorus compounds induce cardiotoxicity through currently unknown mechanisms, which need to be unraveled by a comprehensive and systematic approach such as genome-wide gene expression analysis. We used microarrays to study gene expression changes in human cardiomyocytes after exposure to VX, and identified pathways underlying these changes. Human cardiomyocytes were exposed to sublethal concentrations (0, 0.1, 10 μM) of VX. RNA were extracted at different timepoints (0, 6, 24, 72 h) after VX exposure and hybridized to Affymetrix microarrays. Four biological repeats were used for each condition.
Project description:Wound healing is associated with high rates of cell replication and lactate accumulation even under normoxic and hyperoxic conditions. Lactate accounts for various effects in tissue regeneration, such as collagen synthesis, angiogenesis, modulation of cytokine patterns and as recently shown for stem cell homing. Its influence on genes involved in cell replication has not been shown yet. Therefore, the effect of lactate considering genes involved in different cellular processes was investigated. Human umbilical vein endothelial cells (HUVEC) were cultured and incubated with lactate for different periods of time. Gene expression analysis was performed using custom-designed oligonucleotide microarrays. Keywords: Human gene expression study
Project description:Wound healing is associated with high rates of cell replication and lactate accumulation even under normoxic and hyperoxic conditions. Lactate accounts for various effects in tissue regeneration, such as collagen synthesis, angiogenesis, modulation of cytokine patterns and as recently shown for stem cell homing. Its influence on genes involved in cell replication has not been shown yet. Therefore, the effect of lactate considering genes involved in different cellular processes was investigated. Human umbilical vein endothelial cells (HUVEC) were cultured and incubated with lactate for different periods of time. Gene expression analysis was performed using custom-designed oligonucleotide microarrays. Keywords: Human gene expression study Reference design with Cy3 labeled uniRNA and Cy5 labeled sample RNA.
Project description:Cardiomyocyte-like cells can be reprogrammed from somatic fibroblasts by combinations of genes, providing a new avenue for cardiac regenerative therapy. Here we show that functional cardiomyocytes can be rapidly and efficiently generated from human fibroblasts by specific combination small molecules. Microarray analysis has been used to compare the expression profile of cardiomyocyte-like cells derived from human foreskin and lung fibroblasts, and human ES cell-derived cardiomyocytes. Cardiomyocytes generated from different origins were metabolically purified under glucose-depleted and lactate-abundant conditions for RNA extraction and hybridization on Affymetrix microarrays.
Project description:Chronical hypoxia is a common occurrence following reduced uteroplacental blood flow resulting from incomplete trophoblast invasion and abnormal vascular remodeling of the spiral arteries in PE. Hypoxia can lead to active glycolysis, which increases the production of lactate, a substrate for histone lactylation. To screen for genes that may be regulated by histone lactylation in PE placentas, we performed RNA-seq in HTR-8/SVneo cells under hypoxia or treated with sodium L-lactate. The results showed that 3578 genes were upregulated in the HTR-8/SVneo cells under hypoxia compared to those under normoxia, and 355 genes were upregulated in HTR-8/SVneo cells treated with sodium L-lactate compared to the control cells. 152 upregulated genes in the HTR-8/SVneo cells under hypoxia and those treated with sodium L-lactate overlapping.