Project description:Transcriptom profiling performed on myotubes derived from 3 patients carrying two recessively-inherited mutations in LPIN1 gene and 3 age and sex matched controls with or without TNF-alpha plus IL-1-beta stimulation for 24h.
Project description:Phosphoproteomic analysis of myogenesis in C2C12 myoblasts differentiating into myotubes. Four time points were analysed (0min, 30min, 24h and 5d) with four biological replicates.
Project description:By applying ChIP-seq, we generated genome-wide maps of YY1 in skeletal myoblasts and myotubes. We found that YY1 binds to 1820 confident target with a large portion residing in the intergenic regions. In addition, YY1 was found to activate many loci, and there is no significant overlap between YY1 and Ezh2 targets, suggensting a Ezh2-independent manner. Further detailed study revealed that YY1 can regulate some lincRNAs which are fucntional in skeletal myogenesis. In this study, we identified a YY1-Yam-1-miR-715 (TF-lincRNA-miRNA) regulatory curcuit in myogensis. Examination of YY1 targets in myoblast versus myotubes
Project description:H69 cells (human cholangiocytes) were exposed to TNF-alpha (10 ng/ml) for 8 h and were then collected for miRNA analysis, compared with non-treated control cells.
Project description:This analysis compares various timepoints from Day -1, 50% confluency myoblasts to Day 5 post differentiation myotubes. Consecutive timepoints and myoblasts vs. myotubes are compared. Experiment Overall Design: 8 time points from Day -1 to Day 5, three replicates for each time point.
Project description:Transcription profiling of human mesenchymal cells (MSCs) after ex vivo expansion under culture conditions supporting extensive cell proliferation. Highly efficient cell expansion within short time (~40 days) and comparison of gene expression profiles from MSCs after primary seeding, defined as early passage versus MSCs after a minimum of 17 (max 34) population doublings, defined as late passage. Combined data of passage 1 and 2 was compared to passage 0 (zero) as reference
Project description:Nrf2 (NF-E2-related-factor-2) contributes to the maintenance of glucose homeostasis in vivo. Nrf2 suppresses blood glucose levels by protecting pancreatic β-cells from oxidative stress and improving peripheral tissue glucose utilization. To elucidate the molecular mechanisms by which Nrf2 contributes to the maintenance of glucose homeostasis, we generated skeletal muscle (SkM)-specific Keap1-knockout (Keap1MuKO) mice that express abundant Nrf2 in SkM and then examined Nrf2-target gene expression in this tissue. In Keap1MuKO mice, blood glucose levels were significantly downregulated, and the levels of glycogen branching enzyme (Gbe1) mRNA, along with those of glycogen branching enzyme (GBE) protein, were significantly upregulated in mouse SkM. Consistent with this result, chemical Nrf2-inducers promoted Gbe1 mRNA expression in both mouse SkM and C2C12 myotubes. Chromatin-immunoprecipitation analysis demonstrated that Nrf2 binds the Gbe1 upstream promoter regions. In Keap1MuKO mice, muscle glycogen content was strongly reduced, and forced GBE expression in C2C12 myotubes promoted glucose uptake. Therefore, our results demonstrate that Nrf2-induction in SkM increases GBE expression and reduces muscle glycogen content, resulting in improved glucose tolerance. Chromatin occupancy of Nrf2 under CDDO-Im-treated condition were generated by deep sequencing, in dupliplicate