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Mus musculus

ABSTRACT: RNA-Seq analysis of the pancreatic islets of beta cell specific adult Nkx2.2 mutant mice

PROVIDER: PRJNA316851 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3313320.fastq.gz	Fastqsanger.gz
	SRR3313321.fastq.gz	Fastqsanger.gz
	SRR3313322.fastq.gz	Fastqsanger.gz
	SRR3313323.fastq.gz	Fastqsanger.gz
	SRR3313324.fastq.gz	Fastqsanger.gz

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RNA-Seq analysis of the pancreatic islets of beta cell specific adult Nkx2.2 mutant mice

Project description:Aim:Transcriptional analysis of the pancreatic islets of adult Nkx2.2 flox/flox; RipCre mice versus control Methods:Pancreatic islets from 4week old Nkx2.2 mutant mice and controls were isolated and total RNA was extracted.Libraries were prepared from total RNA (RIN>8) with the TruSeq RNA prep kit (Illumina) and sequenced using the HiSeq2000 (Illumina) instrument. More than 20 million reads were mapped to the mouse genome (UCSC/mm9) using Tophat (version 2.0.4) with 4 mismatches and 10 maximum multiple hits. Significantly differentially expressed genes were calculated using DEseq. Results: Among the downregulated genes with a p-value=0.05 are important genes for beta cell function and idenity.Among the upregulated genes with a p-value=0.05 are non beta endocrine hormones. Conclusion: Nkx2.2 activates important beta cell genes and actively represses non beta cell genes

2016-12-20 | GSE79723 | GEO

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Project description:RNAseq analysis of the colon of intestine-specific adult Nkx2.2 mutant mice

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Project description:RNAseq analysis of the duodenum of intestine-specific adult Nkx2.2 mutant mice

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RNA-Seq analysis of NKX2.2 knockdown in human pancreatic islets

Project description:Aim:Transcriptional analysis of NKX2.2 knockdown versus control in human pancreatic islets Methods:Pancreatic islets from 3 human donors were transduced with an adenovirus encoding an shRNA directed against human NKX2.2 or a scrambled shRNA control. Total RNA was extracted.Libraries were prepared from total RNA (RIN>8) with the TruSeq RNA prep kit (Illumina) and sequenced using the HiSeq2000 (Illumina) instrument. More than 20 million reads were mapped to the human genome (Human: NCBI/build37.2)) using Tophat (version 2.0.4) with 4 mismatches and 10 maximum multiple hits. Significantly differentially expressed genes were calculated using DEseq. Results: Among the dysregulated genes with a p-value=0.05 are important genes for the maintenance of beta cell function and idenity. Conclusion: Nkx2.2 is a critical regulator of beta cell function and identity

2016-12-20 | GSE79724 | GEO

Expression data from adult mouse islets

Project description:Zinc finger protein ZBTB20 plays a critical role in regulating insulin expression from islet beta-cells by orchestrating their gene expression profile. We used microarrays to investigate the target gene of ZBTB20 in mouse pancreatic beta-cells. Adult mouse islets were harvested for RNA extraction and hybridization on Affymetrix microarrays. We sought to identify the target genes of transcription factor ZBTB20 in beta-cells. To that end, we isolated the islets from adult beta cell-specific ZBTB20 knockout and their littermate control mice.

2014-09-01 | E-GEOD-31961 | biostudies-arrayexpress

Insm1 cooperates with Neurod1 and Foxa2 to maintain mature pancreatic β-cell function (Expression data from islets of control and Insm1 conditional deleted adult pancreatic islets)

Project description:The zinc finger factor Insm1 is known to regulate differentiation of pancreatic β cells during development, Here we show that Insm1 is essential for the maintenance of functionally mature pancreatic β cells in mice. We used microarrays to analyse the global gene expression after deletion of insm1 in adult pancreatic β cells and identified functional important genes and immature islets releated genes deregulated in the mutatant islets.

2015-03-31 | GSE54044 | GEO

Global profiling of Nkx2.2 SD-domain mutant pancreas during development and adulthood compared to transcriptional profiling of SD-domain mutant expressing neural progenitors.

Project description:The consolidation of unambiguous cell fate commitment relies on the ability of transcription factors (TFs) to exert tissue-specific regulation of complex genetic networks. The mechanisms by which TFs establish such precise control over gene expression, however, have remained elusive—especially in instances where a single TF operates in two or more discrete cellular systems. In this study, we demonstrate that  cell specific functions of NKX2.2 are driven by the highly conserved NK2-Specific Domain (SD). Mutation of the endogenous NKX2.2 SD domain prevents the developmental progression of beta cell precursors into mature, insulin-expressing beta cells, resulting in overt neonatal diabetes. Within the adult beta cell, the SD domain stimulates beta cell performance through the activation and repression of a subset of NKX2.2-regulated transcripts critical for beta cell function. These irregularities in beta cell gene expression may be mediated via SD domain-contingent interactions with components of the nuclear pore complex. In stark contrast to these pancreatic phenotypes, however, the SD domain is entirely dispensable for the development of NKX2.2-dependent cell types within the CNS. Together, these results reveal a previously undetermined mechanism through which NKX2.2 directs disparate transcriptional programs in the pancreas vs. neuroepithelium.

2024-02-21 | GSE226345 | GEO

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Project description:RNA-Seq analysis of E15.5 pancreas of both whole body Nkx2.2 mutant embryos and endocrine progenitor specific Nkx2.2 mutant embryos

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RNA-Seq analysis of E15.5 pancreas of both whole body Nkx2.2 mutant embryos and endocrine progenitor specific Nkx2.2 mutant embryos

Project description:Aim: Transcriptional analysis of E15.5 whole pancreas of Nkx2.2-LacZ/LacZ embryos versus control and Ngn3-Cre; Nkx2.2-flox/flox embryos versus control Methods: Embryonic pancreata were isolated at E15.5 from Nkx2.2 mutant mice and controls. Total RNA was extracted. Libraries were prepared from total RNA (RIN>8) with the TruSeq RNA prep kit (Illumina) and sequenced using the HiSeq2000 (Illumina) instrument. More than 20 million reads were mapped to the mouse genome (UCSC/mm9) using Tophat (version 2.0.4) with 4 mismatches and 10 maximum multiple hits. Significantly differentially expressed genes were calculated using DEseq. Results: There is significant overlap between the differentially expressed genes of whole body Nkx2.2 mutant embryos and endocrine progenitor specific Nkx2.2 mutant embryos; many of the downregulated genes (p-value < 0.05) are genes involved in beta cell function. Conclusion: Nkx2.2 functions within the endocrine progenitor lineage to activate beta cell genes

2017-01-09 | GSE80444 | GEO

Insm1 cooperates with Neurod1 and Foxa2 to maintain mature pancreatic ?-cell function (Expression data from islets of control and Insm1 conditional deleted adult pancreatic islets)

Project description:The zinc finger factor Insm1 is known to regulate differentiation of pancreatic ? cells during development, Here we show that Insm1 is essential for the maintenance of functionally mature pancreatic ? cells in mice. We used microarrays to analyse the global gene expression after deletion of insm1 in adult pancreatic ? cells and identified functional important genes and immature islets releated genes deregulated in the mutatant islets. We used 8 mutant and 8 litter matched control mice for the islets preparation.

2015-03-31 | E-GEOD-54044 | biostudies-arrayexpress

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