Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Analysis of RNA-seq libraries for conditional knock-out of transcription factors in adult mouse pancreas

ABSTRACT: The purpose of this study is to determine the roles and hierarchy of the transcription factors Foxa2, Gata4, Nr5a2, and Ptf1a in the control of the physiology of the adult exocrine pancreas. Knockouts of each gene were induced by tamoxifen treatment of mice bearing a Ptf1aCreER allele as well as floxed alleles of the gene(s) to be knocked out. Four to eight RNA-seq libraries were analyzed for control animals, knockouts of each single gene, pairwise knockouts of Ptf1a & Foxa2, Ptf1a & Gata4, Ptf1a & Nr5a2, Foxa2 & Gata4, Gata4 & Nr5a2, and a four gene knockout of Ptf1a, Foxa2, Gata4, and Nr5a2 (eleven different genotypes in all).

ORGANISM(S): Mus musculus

PROVIDER: GSE100881 | GEO | 2018/07/01

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Comparative gene expression of mouse Pancreatic specific transcription factor 1a (Ptf1a/p48) in pancreatic progenitor cells

Project description:Ptf1a was identified as the essential transcription factor which controls pancreatic exocrine enzyme expression. With lineage tracing eperiments Ptf1a was recognized as an important pancreatic progenitor transcription factor and Ptf1a null mice do not develop a pancreas. We used gene expression arrays to determine the global differeences in expression levels when pancreatic progenitor cells are expanding in Ptf1a heterozygote versus null mutants at E10.5. Ptf1a E10.5 dorsal pancreas total RNA from pools of 3 embryos was twice linear amplified and hybridized to Affymetrix GeneChip Mouse Genome 430 2.0 in triplicate for the Ptf1a KO and in duplicate for the Ptf1a heterozygote

2011-01-24 | E-GEOD-26816 | biostudies-arrayexpress

Comparative gene expression of mouse Pancreatic specific transcription factor 1a (Ptf1a/p48) in pancreatic progenitor cells

2011-01-24 | GSE26816 | GEO

Program specificity for Ptf1a in Pancreas versus Neural Tube Development correlates with distinct collaborating cofactors and chromatin accessibility

Project description:Ptf1a is a lineage-specific basic-helix-loop-helix transcription factor critical in the development of both the pancreas and nervous system. How one transcription factor controls diverse programs of gene expression is a fundamental question in developmental biology. To uncover molecular strategies for the program-specific functions of Ptf1a, we identified bound genomic regions in vivo during development of both tissues. A majority of regions bound by Ptf1a are tissue-specific, lie near genes needed for proper formation and maturation of each tissue, and reflect regions of open chromatin. Information for the specificity of Ptf1a binding and function is encoded in the DNA surrounding the Ptf1a-bound sites, since Ptf1a-bound regions are sufficient to direct tissue-restricted reporter expression when tested in transgenic mice. Fox and Sox factors were identified as lineage specific modifiers of Ptf1a binding, since binding motifs for these factors are enriched in Ptf1a-bound regions in pancreas and neural tube, respectively. Although Ptf1a and Foxa2 co-localize to sites in embryonic pancreas and can act synergistically in cell transfection assays, biochemical experiments detected no physical interaction between the two factors. These findings indicate that lineage-specific chromatin landscapes likely constrain the functions of Ptf1a, and identify Fox and Sox gene families as part of this process.

2013-08-15 | GSE47459 | GEO

Single-cell epigenome analysis identifies transcriptional events controlling direct conversion of human fibroblasts to pancreatic ductal-like cells [FI-snMultiome-seq]

Project description:Cell fate can be reprogrammed by ectopic expression of lineage-specific transcription factors (TF). However, the exact cell state transitions during transdifferentiation are still poorly understood. Here, we have generated pancreatic exocrine cells of ductal epithelial identity from human fibroblasts using a set of six TFs. We mapped the molecular determinants of lineage dynamics using a factor-indexing method based on single-nuclei multiome sequencing (FI-snMultiome-seq) that enables dissecting the role of each individual TF and pool of TFs in cell fate conversion. We show that transition from mesenchymal fibroblast identity to epithelial pancreatic exocrine fate involves two deterministic steps: an endodermal progenitor state defined by activation of HHEX with FOXA2 and SOX17, and a temporal GATA4 activation essential for maintenance of pancreatic cell fate program. Collectively, our data suggest that transdifferentiation – although being considered a direct cell fate conversion method – occurs through transient progenitor states orchestrated by stepwise activation of distinct TFs

2023-08-14 | GSE216858 | GEO

Single-cell epigenome analysis identifies transcriptional events controlling direct conversion of human fibroblasts to pancreatic ductal-like cells [ChIP-seq]

2023-08-14 | GSE216857 | GEO

Single-cell epigenome analysis identifies transcriptional events controlling direct conversion of human fibroblasts to pancreatic ductal-like cells [ATAC-seq]

2023-08-14 | GSE216855 | GEO

Single-cell epigenome analysis identifies transcriptional events controlling direct conversion of human fibroblasts to pancreatic ductal-like cells [RNA-seq]

2023-08-14 | GSE216854 | GEO

The transcriptional landscape of early pancreatic development

Project description:Pancreas organogenesis is a highly dynamic process where neighbouring tissue interactions lead to dynamic changes in gene regulatory networks that orchestrates endocrine, exocrine and ductal lineage formation. To understand the spatio-temporal regulatory logic we have used the Forkhead transcription factor Foxa2-Venus fusion (FVF) knock-in reporter mouse to separate the FVF+ pancreatic epithelium from the FVF- surrounding mesenchyme and blood vessels to perform a whole genome-wide mRNA expression profiling at embryonic day (E)12.5-15.5. This allowed us to annotate genes and molecular processes differentially regulated in these cell types and compartments of the pancreas to generate a dynamic transcriptional landscape. Time-resolved profiling across four embryonic development days. Pancreata were FAC sorted by Foxa2-Venus Fusion (FVF) for each day with each 2-3 biological replicates.

2015-12-31 | E-GEOD-66856 | biostudies-arrayexpress

Expresion profile of MEF reprogrammed with YamanakaM-BM-4s factor together with FoxA2 and Gata4

Project description:In a pilot experiment to reprogramme MEF into endoderm, we infected MEF with the YamanakaM-BM-4s factors (O: Oct4, K: Klf4, S: Sox2, M:Myc), FoxA2 (F) and Gata4 (G). Global gene expression of isolated clones was performed. After infection of MEF with the YamanakaM-BM-4s factor (OKS/M), FoxA2 and Gata4, the cells were grown until colonies could be isolated and expanded independently. Global gene expression of several clones was performed.

2012-08-30 | E-GEOD-37548 | biostudies-arrayexpress

Program specificity for Ptf1a in PancreasM-BM- versusM-BM- Neural Tube DevelopmentM-BM- correlates with distinctM-BM- collaborating cofactors and chromatin accessibility

Project description:Ptf1a is a lineage-specific basic-helix-loop-helix transcription factor critical in the development of both the pancreas and nervous system. How one transcription factor controls diverse programs of gene expression is a fundamental question in developmental biology. To uncover molecular strategies for the program-specific functions of Ptf1a, we identified bound genomic regions in vivo during development of both tissues. A majority of regions bound by Ptf1a are tissue-specific, lie near genes needed for proper formation and maturation of each tissue, and reflect regions of open chromatin.M-BM- M-BM- Information for the specificity of Ptf1a binding and function is encoded in the DNA surrounding the Ptf1a-bound sites, since Ptf1a-bound regions are sufficient to direct tissue-restricted reporter expression when tested in transgenic mice. Fox and Sox factors were identified as lineage specific modifiers ofM-BM- Ptf1a binding, sinceM-BM- binding motifs for these factors are enriched in Ptf1a-bound regions in pancreas and neural tube, respectively. Although Ptf1a and Foxa2 co-localize to sites in embryonic pancreas and can act synergistically in cell transfection assays, biochemical experiments detected no physical interaction between the two factors. These findingsM-BM- indicateM-BM- that lineage-specific chromatin landscapes likely constrain the functions of Ptf1a, and identify Fox and Sox gene families as part of this process. RNA-Seq: Examination of gene expression in Ptf1a expressing cells (NT E.12.5, Pancreas E15.5) ChIP-Seq: Examination of chromatin occupancy in 2 tissue types (E12.5 NT and 17.5 Pancreas). Faire-Seq: Examination of open chromatin in 2 tissue types (E12.5 NT and 17.5 Pancreas).

2013-08-15 | E-GEOD-47459 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data