Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA143073 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE28669: Identification of Sox9-Regulated Pathways During Early Pancreas Organogenesis GSE28670: Identification of Sox9-Regulated Pathways During the Secondary Transition Stage of Pancreas Development Refer to individual Series
2012-08-01 | E-GEOD-28671 | biostudies-arrayexpress
Project description:Sox9 target genes were identified during the secondary transition stage of pancreas development by comparing gene expression in Sox9-ablated versus wild-type pancreata using microarray analysis.
2012-08-02 | GSE28670 | GEO
Project description:Sox9 target genes were identified during the secondary transition stage of pancreas development by comparing gene expression in Sox9-ablated versus wild-type pancreata using microarray analysis. Sox9 was conditionally ablated during the secondary transition in the developing pancreas via recombination of a Sox9-flox allele (Kist et al., 2002) using the tamoxifen-inducible Rosa26-CreER allele (Vooijs et al., 2001). Dams were injected with 6 mg/40 g tamoxifen in corn oil at e12.5. Pancreata were manually microdissected at e15.5. Total RNA was isolated and pooled from pancreata of e15.5 Sox9fl/fl; Rosa26-CreER (mutant) versus Rosa26-CreER (wild-type) littermates for four biological replicates.
2012-08-01 | E-GEOD-28670 | biostudies-arrayexpress
Project description:Identification of Sox9-Regulated Pathways During Early Pancreas Organogenesis
| PRJNA143089 | ENA
Project description:Development of the pancreas from the endoderm is initiated at embryonic day 9 of mouse development and over the following days several different cell types develop from pancreas progenitor cells. A distinct phase of pancreas development, known as the secondary transition, is initiated at day 13 of development and one of the key features of this transition is a massive increase in the number of mature endocrine cells. To study gene expression in pancreas during the secondary transition we performed high-density oligonucleotide microarray experiments on dorsal pancreas tissue isolated from NMRI embryos on consecutive days from e12.5 to e16.5. Keywords: time course
2007-06-09 | GSE8070 | GEO
Project description:Development of the pancreas from the endoderm is initiated at embryonic day 9 of mouse development and over the following days several different cell types develop from pancreas progenitor cells. A distinct phase of pancreas development, known as the secondary transition, is initiated at day 13 of development and one of the key features of this transition is a massive increase in the number of mature endocrine cells. To study gene expression in pancreas during the secondary transition we performed high-density oligonucleotide microarray experiments on dorsal pancreas tissue isolated from NMRI embryos on consecutive days from e12.5 to e16.5. Experiment Overall Design: Dorsal pancreata were isolated from embryos at embryonic day 12.5, 13.5, 14.5, 15.5, and 16.5 and pooled litter-wise prior to total RNA extraction. From each pool, two independent labelling reactions were made, and each sample was hybridized to the entire Murine Genome U74 version 2 chip set (A, B, and C).
2008-11-06 | E-GEOD-8070 | biostudies-arrayexpress
Project description:Identification of Sox9/Pdx1-coregulated Genes During Pancreas Organogenesis
| PRJNA262969 | ENA
Project description:Understanding pancreatic development is instrumental to diabetes research and β-cell replacement therapies. Here, we investigate glucocorticoid receptor (GR) signaling during early pancreas development in mice and humans. Previous reports suggest that glucocorticoids do not play a significant role in mouse pancreas development before the second transition. In this study, we demonstrate that, under physiological conditions, the GR is selectively active in mouse pro-acinar and early endocrine cells from embryonic day 11.5, silenced in bipotent progenitors, and reactivated during endocrine commitment. In mouse pancreatic explants, ectopic GR activation globally promotes acinar fate. Surprisingly, GR activation in human in vitro-derived multipotent pancreatic progenitors steers lineage commitment toward a bipotent/endocrine trajectory and upregulates genes for which expression profiles resemble those of SOX9 and HES1 during human embryonic pancreatic bipotential and endocrine progenitor fate choice. Our combined epigenomic and single-cell transcriptomic analyses suggest that these newly identified marker genes may play important roles in human pancreas development. Taken together, our findings position the GR pathway as an endogenous developmental modulator of early-stage pancreatic progenitor cell differentiation and provide insights into the underlying transcriptional mechanisms involved.
2025-04-30 | GSE237280 | GEO
Project description:Genes specific to Sox9+ pancreatic progenitors were identified by comparing the gene expression in embryonic and adult Sox9+ cells. We used microarray analysis to detail the global changes in gene expression as Sox9 positive embryonic pancreatic progenitors differentiatiate into adult ductal cells or the endocrine lineage. GFP positive cells from Sox9-EGFP mouse pancreas were isolated by FACS at different stages of development (e10.5, e15.5, and p23) for RNA extraction and hybridization to Affymetrix microarrays. To obtain populations highly enriched in Sox9 expression, we collected only GFP Hi populations for analysis. To identify gene expression changes specific to the differentiation of progenitors to ductal cells or endocrine cells, we also isolated and analyzed the gene expression profile of GFP negative cells isolated at p23, as well as GFP positive cells isolated from Ngn3-EGFP mouse pancreas at e15.5. These two populations allow the identification of genes whose expression is associated with the newly differentiated endocrine progeny in the embryo (Ngn3-GFP positive) and adult acinar and endocrine cells at p23.
2012-08-01 | E-GEOD-34060 | biostudies-arrayexpress