Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA201425 | ENA |
REPOSITORIES: ENA
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Project description:Analysis of genes involved in the mESC maintainance between different conditions of growth. The hypothesis tested in the present study was that Myc can sustain mESC self renewal and pluripotency. Results provide important information on the mechanism by which Myc supports mESC self renewal, in comparison with the routinely used LIF+serum culture condition, such as a Myc-dependent specific transcriptional program, which involves induction of an alternative Core Regulatory Network, modulation of signallign pathways (Wnt/bcat) and repression of developmental genes. Total RNA obtained from mESC growth 3 days in the indicated condition compared to the routinely used LIF+serum culture condition. Total RNA obtained from EpiSC growth 3 days in standard condition were also used as control for primed stem cell state.
2016-03-31 | E-GEOD-58656 | biostudies-arrayexpress
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2022-06-11 | GSE205559 | GEO
Project description:We have used mouse embryonic stem cells (ESCs) as a model to study the signaling mechanisms that regulate self-renewal and commitment to differentiation. We hypothesized that genes critical to stem cell fate would be dynamically regulated at the initiation of commitment. Time course microarray analysis following initiation of commitment led us to propose a model of ESC maintenance in which highly regulated transcription factors and chromatin remodeling genes (down-regulated in our time course) maintain repression of genes responsible for cell differentiation, morphogenesis and development (up-regulated in our time course). Microarrays of Oct4, Nanog and Sox2 shRNA knockdown cell lines confirmed predicted regulation of target genes. shRNA knockdowns of candidate genes were tested in a novel high throughput screen of self-renewal, confirming their role in ESC pluripotency. We have identified genes that are critical for self-renewal and those that initiate commitment and developed draft transcriptional networks that control self-renewal and early development. Keywords: genetic modification Gene expression in Oct4 knockdown, Sox2 knockdown and their empty vector contol ES cells was analyzed.
2010-06-11 | E-GEOD-7520 | biostudies-arrayexpress
Project description:We have used mouse embryonic stem cells (ESCs) as a model to study the signaling mechanisms that regulate self-renewal and commitment to differentiation. We hypothesized that genes critical to stem cell fate would be dynamically regulated at the initiation of commitment. Time course microarray analysis following initiation of commitment led us to propose a model of ESC maintenance in which highly regulated transcription factors and chromatin remodeling genes (down-regulated in our time course) maintain repression of genes responsible for cell differentiation, morphogenesis and development (up-regulated in our time course). Microarrays of Oct4, Nanog and Sox2 shRNA knockdown cell lines confirmed predicted regulation of target genes. shRNA knockdowns of candidate genes were tested in a novel high throughput screen of self-renewal, confirming their role in ESC pluripotency. We have identified genes that are critical for self-renewal and those that initiate commitment and developed draft transcriptional networks that control self-renewal and early development. Keywords: genetic modification
2007-04-18 | GSE7520 | GEO
Project description:PMP22 Regulates Self-Renewal and Chemoresistance of Gastric Cancer Cells
| PRJNA373838 | ENA
Project description:Purpose: Sox2 expression marks gastric stem and progenitor cells, raising important questions regarding the genes regulated by Sox2 and the role of Sox2 itself during stomach homeostasis and disease. The goal of this study is to determine the function of and the genes regulated by Sox2 in the stomach. Methods: Sox2 ChIP-enriched DNA and input DNA was isolated from gastric glands of adult antrum from Sox2 KO and Sox2 WT mice. DNA was purified and genomic libraries were prepared as described (Sulahian et al., 2014), using four micrograms of goat anti-SOX2 (AF2018, R&D). Libraries were sequenced (50 bp, single-end reads) on an Illumina Hi-Seq 2000 instrument. Results: Sox2 is dispensiable for gastric stem cell self-renewal and epithelial homeostasis, however modulates the expression of wnt, intestinal and cancer related genes Examination of Sox2 targets in the stomachs of Sox2 WT and Sox2 KO mice.
2016-08-04 | E-GEOD-83965 | biostudies-arrayexpress