Project description:Gliomas have been proposed to be driven by a population of neural stem-like cells. We isolated a panel of novel human glioma cell lines using adherent neural stem cell conditions. The normal human foetal (hf) NS cells and the tumorigenic glioma NS cell lines were expanded using growth factors EGF and FGF in adherent culture conditions. In these conditions apoptosis and differentiation are suppressed resulting in more homogeneous populations of stem cells than has been reported previously. We included parallel primary biopsies of non-malignant brain tissue ('Normal Brain').
Project description:Gliomas have been proposed to be driven by a population of neural stem-like cells. We isolated a panel of novel human glioma cell lines using adherent neural stem cell conditions. The normal human foetal (hf) NS cells and the tumorigenic glioma NS cell lines were expanded using growth factors EGF and FGF in adherent culture conditions. In these conditions apoptosis and differentiation are suppressed resulting in more homogeneous populations of stem cells than has been reported previously. We included parallel primary biopsies of non-malignant brain tissue ('Normal Brain'). Experiment Overall Design: Cell lines were expanded until 70-90% confluent and then harvested for RNA extraction. All cell lines were gorwn in identical culture media. We also include 'Normal Brain' samples which are regions of the adult human cortex.
Project description:The DNA methylation profiles of Glioma Stem Cell (GSC) lines were investigated in order to find the stem cell signature associated to glioblastoma (GBM). This goal was achieved through the comparison of GSC methylation data with FFPE-GBM biopsies and human foetal Neural Stem Cell (NSC) lines profiles.
Project description:The DNA methylation profiles of Glioma Stem Cell (GSC) lines were investigated in order to find the stem cell signature associated to glioblastoma (GBM). This goal was achieved through the comparison of GSC methylation data with FFPE-GBM biopsies and human foetal Neural Stem Cell (NSC) lines profiles. GSC lines: 3 (GBM2, G144, G166). FFPE-GBM biopsy pool: FFPE-GBM pool: 1 pool from 5 GBM biopsies. Human foetal NSC lines: 2 (CB660 from forebrain; CB660SP form spinal cord). Methylated DNA from each sample was enriched with the immunoprecipitation method using 5-methylcytosine antibody (Eurogentec). Immunoprecipitated DNA (IP-DNA) and total DNA were labeled and hybridized on Agilent Human CpG Island ChIP-on-Chip Microarray 244K. IP-DNA were labeled with Cy5 while the matching total DNA were labeled with Cy3.
Project description:Glioblastoma-derived neural stem (GNS) cells were reprogrammed to induced pluripotent stem (iPS) cells by transgenic expression of OCT4 and KLF4. Genome-wide DNA methylation status was profiled at 485,000 loci to assess epigenetic erasure and restoration due to reprogramming and redifferentiation to the neural stem (NS) cell state.
Project description:Glioblastoma-derived neural stem (GNS) cells were reprogrammed to induced pluripotent stem (iPS) cells by transgenic expression of OCT4 and KLF4. Genome-wide DNA methylation status was profiled at 485,000 loci to assess epigenetic erasure and restoration due to reprogramming and redifferentiation to the neural stem (NS) cell state.
Project description:Glioblastoma-derived neural stem (GNS) cells were reprogrammed to induced pluripotent stem (iPS) cells by transgenic expression of OCT4 and KLF4. Genome-wide DNA methylation status was profiled at 27,578 CpG sites to assess epigenetic erasure and restoration due to reprogramming and redifferentiation to the neural stem (NS) cell state.
Project description:Glioblastoma-derived neural stem (GNS) cells were reprogrammed to induced pluripotent stem (iPS) cells by transgenic expression of OCT4 and KLF4. Gene expression profiling was performed in comparison to normal neural stem (NS) cells reprogrammed in parallel, as well as standard ES cells as an independent reference.
