Project description:Recent reports have emphasized the pitfalls of iPSC technology including the potential for immunogenicity of transplanted cells. It is serious safety-related concern for iPSC-based cell therapy. However, preclinical data supporting the safety and efficacy of iPSCs are also accumulating. To address the concern of immunogenicity of ESCs/iPSCs or ESCs/iPSCs-derived neurospheres, global gene expression profiles were compared between undifferentiated mouse ESCs (EB3 line), mouse iPSCs (38C2 line), and ESC/iPSC-derived neurosphere and mouse primary culture of neurosphere obtained from fetal mouse ganglionic eminence. Mouse adult sklin fibroblast was used as a control. We used affymetrix microarrays to compare the global gene expression of neurospheres prepared several origins. Keywords: Expression profiling by array RNA extracted from neurospheres was hybridized to Affymetrix microarrays.
Project description:Recent reports have emphasized the pitfalls of iPSC technology including the potential for immunogenicity of transplanted cells. It is serious safety-related concern for iPSC-based cell therapy. However, preclinical data supporting the safety and efficacy of iPSCs are also accumulating. To address the concern of immunogenicity of ESCs/iPSCs or ESCs/iPSCs-derived neurospheres, global gene expression profiles were compared between undifferentiated mouse ESCs (EB3 line), mouse iPSCs (38C2 line), and ESC/iPSC-derived neurosphere and mouse primary culture of neurosphere obtained from fetal mouse ganglionic eminence. Mouse adult sklin fibroblast was used as a control. We used affymetrix microarrays to compare the global gene expression of neurospheres prepared several origins. Keywords: Expression profiling by array
Project description:Induced pluripotent stem (iPS) cells give rise to neural stem cells, which are applicable for therapeutic transplantation in treatment of neural diseases. However, generation of neural stem cells from iPS cells requires a careful selection of safe iPS clones. We sought to determine whether direct induction of neural stem cells from partially reprogrammed somatic cells is able to generate safer cells rapidly. We have successfully established direct induction system from fibroblast to neural stem cells. To characterize these directly induced neural stem cells, Gene expression profiles were compared with iPS cell or ES cell-derived neurosphere. We used affymetrix microarrays to compare the global gene expression of neurospheres prepared several method. RNA extracted from neurospheres was hybridized to Affymetrix microarrays. The mouse strain used in this study except ES/iPS cells was C57BL/6.
Project description:Neural precursor cells from the ganglionic eminence at E14.5 were isolated and cultured as neurospheres. E2F3 and E2F4 genomic binding sites are mapped by ChIP-on-Chip on wild type or mutant cells.
Project description:The ganglionic eminence was dissected and neurospheres were cultured from the brain of E13.5 embroys. RNA was isolated from neurospheres cultured from p107-/- embryos and their wildtype littermates. P107 knockout mice have previously been shown to have an increased number of stem cells and enhanced stem cell self renewal. With the microarray experiment we are hoping to discover the genes involved in stem cell number and self renewal along with p107. Experiment Overall Design: this experiment include 2 samples and 14 replicates
Project description:Induced pluripotent stem (iPS) cells give rise to neural stem cells, which are applicable for therapeutic transplantation in treatment of neural diseases. However, generation of neural stem cells from iPS cells requires a careful selection of safe iPS clones. We sought to determine whether direct induction of neural stem cells from partially reprogrammed somatic cells is able to generate safer cells rapidly. We have successfully established direct induction system from fibroblast to neural stem cells. To characterize these directly induced neural stem cells, Gene expression profiles were compared with iPS cell or ES cell-derived neurosphere. We used affymetrix microarrays to compare the global gene expression of neurospheres prepared several method.
Project description:The ganglionic eminence was dissected and neurospheres were cultured from the brain of E13.5 embroys. RNA was isolated from neurospheres cultured from p107-/- embryos and their wildtype littermates. P107 knockout mice have previously been shown to have an increased number of stem cells and enhanced stem cell self renewal. With the microarray experiment we are hoping to discover the genes involved in stem cell number and self renewal along with p107. Keywords: other
Project description:There was a remarkable similarity in the molecular properties of the MGE-GFP+ and ES-GFP+ cells. In particular, genes that are important for medial ganglionic eminence (MGE) and cortical interneurons development are both high in expression in both MGE-Lhx6-GFP+ and ES-Lhx6-GFP+ cells (compared to ES-Lhx6-GFP- cells).
Project description:Human forebrain organoids (day 50) derived from U1M and U2F iPS cell lines were exposed with or without 1 mM valproic acid (VPA) for 72h. Organoids were then used for single cell RNA sequencing (scRNA-seq). Through data processing, ten major cell types including astrocyte, choroid plexus, endothelia, intermediate progenitor cells, medial ganglionic eminence, radial glia, immature neuron, excitatory and inhibitory neuron, and microglia-like cells were identified. We found that VPA affected gene expression in choroid plexus, excitatory neuron, immature neuron, and medial ganglionic eminence cells. The cell type-specific DEGs were enriched with mitotic nuclear division, multiple neuronal functions, and response to type I interferon and virus.
