Project description:Vitamin D, a hormone that acts through the nuclear vitamin D receptor (VDR), upregulates anti-tumorigenic microRNA in prostate epithelium. This may contribute to the lower levels of aggressive prostate cancer (PCa) in patients with high serum vitamin D. Expression of other small non-coding RNAs (ncRNAs) in prostate epithelium and their potential regulation by vitamin D are uncharacterized. Laser capture microdissection (LCM) followed by small-RNA sequencing was used to identify ncRNA in the prostate epithelium of tissues from a vitamin D-supplementation trial. We compared the expression profiles to small-RNA sequencing data from primary prostate epithelial cells and publically-available benign whole prostate. Application of LCM to isolate epithelium promoted sample homogeneity and captured more diversity in ncRNA species. An abundance of PIWI-interacting RNAs (piRNAs) was detected in normal prostate epithelium, which increased under high vitamin D conditions.
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression.