Unknown,Transcriptomics,Genomics,Proteomics

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UTX regulated genes in mouse embryonic stem cells

ABSTRACT: UTX gene is localized on the X chromosome, identified as a demethylase on histone H3 lysine 27. Two independent UTX conditional knockout (cKO) embryonic stem cell lines and two UTX knockout (KO) cell lines were cultured on 0.1% gelatin-coated dishes without feeder cells at desity of 1 million cells/10 cm dish. Cells were cultured overnight and collected. Total RNAs were sequentially purified with Trizol (Invitrogen) and RNeasy kit (Qiagen) and analyzed on Mouse Genome 430 2.0 Array (Affymetrix) at NIDDK Microarray Core Facility following standard protocols.

ORGANISM(S): Mus musculus

SUBMITTER: Chaochen Wang

PROVIDER: E-GEOD-35415 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

UTX regulates mesoderm differentiation of embryonic stem cells independent of H3K27 demethylase activity.

Wang Chaochen C Lee Ji-Eun JE Cho Young-Wook YW Xiao Ying Y Jin Qihuang Q Liu Chengyu C Ge Kai K

Proceedings of the National Academy of Sciences of the United States of America 20120904 38

To investigate the role of histone H3K27 demethylase UTX in embryonic stem (ES) cell differentiation, we have generated UTX knockout (KO) and enzyme-dead knock-in male ES cells. Deletion of the X-chromosome-encoded UTX gene in male ES cells markedly decreases expression of the paralogous UTY gene encoded by Y chromosome, but has no effect on global H3K27me3 level, Hox gene expression, or ES cell self-renewal. However, UTX KO cells show severe defects in mesoderm differentiation and induction of ...[more]

PMID: 22949634

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Project description:Regulating the transition from lineage-restricted progenitors to terminally differentiated cells is a central aspect of nervous system development. Here, we investigated the role of the nucleoprotein Geminin in regulating neurogenesis at a mechanistic level during both Xenopus primary neurogenesis and mammalian neuronal differentiation in vitro. The latter work utilized both neural cells derived from embryonic stem and embryonal carcinoma cells in vitro and neural stem cells from mouse forebrain. In all of these contexts, Geminin antagonized the ability of neural bHLH transcription factors to activate transcriptional programs promoting neurogenesis. Furthermore, Geminin promoted a bivalent chromatin state, characterized by the presence of both activating and repressive histone modifications, at genes encoding transcription factors that promote neurogenesis. This epigenetic state restrains the expression of genes that regulate commitment of undifferentiated stem and neuronal precursor cells to neuronal lineages. Geminin is highly expressed in undifferentiated neuronal precursor cells but is downregulated prior to differentiation. Therefore, these data support a model whereby Geminin promotes the neuronal precursor cell state by modulating both the epigenetic status and expression of genes encoding neurogenesis-promoting factors. Additional developmental signals acting in these cells can then control their transition toward terminal neuronal or glial differentiation during mammalian neurogenesis. A mouse embryonic stem (ES) cell line for inducible knockdown of the small nucleoprotein Geminin was utilized. ES cells were used to generate neural precursor cells by monolayer culture in N2B27 media for 5 days, and doxycycline-inducible knockdown of Geminin was performed from day 3. Changes in gene expression resulting from Geminin knockdown were assessed by RNA sequencing. Three experimental replicates were generated for Geminin knockdown (plus Dox) with a corresponding no-Dox control. These were subjected to sequencing, and data were analyzed using TopHat and Cufflinks/Cuffdiff. Transcripts were considered as differentially expressed upon Gem knockdown if data met statistical significance cutoffs in Cuffdiff (sufficient sequence alignments were obtained for analysis and transcript had significant change in FPKM value (normalized transcript abundance; fragments per kb of exon per million fragments mapped) between the no Dox and plus Dox sample pairs) in at least two of the three replicates.

Dataset Information

UTX regulated genes in mouse embryonic stem cells

Publications

UTX regulates mesoderm differentiation of embryonic stem cells independent of H3K27 demethylase activity.

Similar Datasets

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