Project description:A genomic expression comparison was done among neural progenitor cells cultured on 2D substrates, 3D porous polystyrene scaffolds, and as 3D neural spheres (in vivo surrogate), with the goal of assessing the feasibility of establishing the meaning of 3D and associated physiological relevance at the molecular level Neural progenitor cells were cultured on 2D surfaces, in 3D scaffolds and as 3D neural spheres. Chemical cues are controlled by coating. Only spacial properties of the culture systems were compared.
Project description:A genomic expression comparison was done among neural progenitor cells cultured on 2D substrates, 3D porous polystyrene scaffolds, and as 3D neural spheres (in vivo surrogate), with the goal of assessing the feasibility of establishing the meaning of 3D and associated physiological relevance at the molecular level
Project description:Sox3 has been shown to be expressed within neural progenitors of the developing mouse central nervous system. However, identification of Sox3 targets within neural progenitors has remained elusive. Using microarrays we compared populations of in vitro derived mouse neural progenitor cells, with or without Sox3, to identify putative Sox3 neural progenitor targets. Mouse R1 ES cells, with or without Sox3, were differentiated into neural progenitor cells using the standard N2B27 protocols. At the fourth day of N2B27 differentiation, over two independent series, RNA was extracted from both Sox3 positive and Sox3 null populations and hybridization on a GeneChip Mouse Gene 1.0 ST Affymetrix microarrays.
Project description:Sox3 has been shown to be expressed within neural progenitors of the developing mouse central nervous system. However, identification of Sox3 targets within neural progenitors has remained elusive. Using microarrays we compared populations of in vitro derived mouse neural progenitor cells, with or without Sox3, to identify putative Sox3 neural progenitor targets.
Project description:This study examines and compares the protein content in conditioned media collected from neural cell types generated from human pluripotent stem cells. Conditioned media was prepared for 48 hours at a final endpoint of differentiation day 12. Both groups are from parental line WTC11 and cultured as a monolayer on matrigel. Both groups contain a transgene cassette for doxycycline-inducible expression of sox9 and nfia. Doxycycline was only included in the iAstro groups, whereas it was omitted in the neural progenitor cell groups.
Project description:Endogenous neural stem cells reside in the mammalian brain during development and within special niche microenvironments during adulthood. We discovered that endothelial progenitor cell-secreted factors promote the self-renewal of adult mouse NSCs in vivo and identified this protein as ECF-L. We also analyzed molecular signalling networks caused by ECF-L in neural stem cells using global gene expression analysis. Neural stem cells were isolated and expanded from adult mouse brain. Neural stem cells were cultured in the presence or absence of ECF-L in the MHM medium. After the designed period of ECF-L treatment, cells were harvested and RNA was extacted, followed by DNA microarray analysis.
Project description:Neurosphere cultures prepared from E14.5 mouse cerebral cortex at passage 3 were treated for 4 hours with 100 nM dexamethasone We used microarrays to detail the global program of dexamethasone regulated gene expression in embryonic neural progenitor/stem cells. Cerebral cortex was isolated from E14.5 mouse fetuses and cultured as neurospheres for 3 passages prior to treatment with 100 nM dexamethasone or ethanol vehicle for 4 hours.
Project description:Transcriptome analysis of neural progenitor/stem cells is limited by the lack of a reliable method for cell isolation. We have designed a genetic dual reporter strategy that can allow prospective isolation of cortical neural progenitor cells and their neuronal progeny form the same animals. These cells should be a good cell source for comparative global analysis. Cortical neural progenitor cells and their neuronal progeny were purified using a dual reporter strategy. The purified cells were used for comparative expression profiling.