Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

SnRNA-seq of pancreas revealed the dysfunction of endocrine and exocrine cells in transgenic pig with prediabetes

ABSTRACT: SnRNA-seq of pancreas revealed the dysfunction of endocrine and exocrine cells in transgenic pig with prediabetes

PROVIDER: PRJNA938927 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR23623285_1.fastq.gz	Fastqsanger.gz
	SRR23623285_2.fastq.gz	Fastqsanger.gz
	SRR23623286_1.fastq.gz	Fastqsanger.gz
	SRR23623286_2.fastq.gz	Fastqsanger.gz
	SRR23623287_1.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 16

Similar Datasets

SnRNA-seq of pancreas revealed the dysfunction of endocrine and exocrine cells in transgenic pig with prediabetes

Project description:Diabetes poses a tremendous threat to human health. Exocrine pancreatic dysfunction is related to diabetes, but the exact mechanism is not fully understood. In this study, the high-fat and high-sucrose dietary interventions were performed on diabetes susceptible transgenic pigs (PIGinH11) and wild pigs. And the molecular mechanism of pancreatic endocrine and exocrine damage was analyzed by histopathology and single nucleus RNA sequencing.

2023-04-22 | GSE226141 | GEO

Age-associated DNA methylation increases in mouse pancreatic islets suggest an epigenetic drift toward the exocrine pancreas epigenome

Project description:Early postnatal overnutrition causes persistent dysregulation of endocrine pancreas function. We used genome-scale DNA methylation profiling in the suckling-period small litter (SL) mouse model to test whether this occurs via persistent epigenetic changes in pancreatic islets. Although SL islets showed DNA methylation changes directly after weaning and in adulthood, few of these were present at both ages, contrary to our hypothesis. Most interestingly, we discovered that genomic regions that are hypermethylated in exocrine relative to endocrine pancreas tend to gain methylation in islets during aging. Focusing on a subset of genes relevant to β cell function, we showed that these methylation differences are strongly correlated with expression. Together, our results provide the novel insight that DNA methylation changes that occur as islets age indicate an overall epigenetic drift toward the exocrine pancreas epigenome. These concerted shifts in the islet methylome could contribute to the age-associated decline in endocrine pancreas function. Pancreatic islets were isolated from P21/P180 SL or C mice. To ensure purity of islets, 3 rounds of manual picking were performed in each samples. Whole pancreas samples, ~98% of which is exocrine pancreas, were used as exocrine pancreas. There are 5 mice per group.

2014-12-03 | E-GEOD-63811 | biostudies-arrayexpress

Pancreas-specific miR-216a regulates proliferation and endocrine and exocrine cell function

Project description:Several miRNAs have tissue-specific patterns consistent with crucial functions in many biological processes and are candidate biomarkers of disease. Yet, there is limited knowledge about the role of pancreas-specific miRNAs in pancreatic pathologies. Here, we show that miR-216a is a conserved, pancreas-specific miRNA with important roles in pancreatic islet and acinar cells. By profiling miRNAs from human islets and subsequent systematic tissue analysis we found that miR-216a is highly enriched in endocrine and exocrine pancreas. Deletion of miR-216a in mice lead to a reduction in islet size, β-cell mass and insulin levels. RNA-sequencing indicated that cell cycle and proliferation were the most significantly regulated biological processes in miR-216 knockout pancreata. miR-216a was induced by TGF-β signalling and inhibition of miR-216a increased apoptosis and decreased cell proliferation in both β- and exocrine cells. Deletion of miR-216a in the pancreatic cancer prone mouse line Kras G12D ;Ptf1a CreER reduced the propensity of pancreatic cancer precursor lesions. Notably, circulating miR-216a levels were elevated in both mice and humans with pancreatic cancer. Collectively, our study gives insights into how β-cell mass and acinar cell growth are modulated by a pancreas-specific miRNA but also suggests miR-216a as a promising biomarker for diagnosis of pancreatic diseases.

2021-10-22 | GSE159844 | GEO

Pancreas-specific miR-216a regulates proliferation and endocrine and exocrine cell function II

2021-10-22 | GSE159970 | GEO

Pancreas-specific miR-216a regulates proliferation and endocrine and exocrine cell function

Project description:Pancreas-specific miR-216a regulates proliferation and endocrine and exocrine cell function

| PRJNA670668 | ENA

SnRNA-Seq of Pancreas Revealed the Dysfunction of Endocrine and Exocrine Cells in Transgenic Pigs with Prediabetes.

Project description:Diabetes poses a significant threat to human health. Exocrine pancreatic dysfunction is related to diabetes, but the exact mechanism is not fully understood. This study aimed to describe the pathological phenotype and pathological mechanisms of the pancreas of transgenic pigs (PIGinH11) that was constructed in our laboratory and to compare it with humans. We established diabetes-susceptible transgenic pigs and subjected them to high-fat and high-sucrose dietary interventions. The damage to the pancreatic endocrine and exocrine was evaluated using histopathology and the involved molecular mechanisms were analyzed using single-nucleus RNA-sequencing (SnRNA-seq). Compared to wild-type (WT) pigs, PIGinH11 pigs showed similar pathological manifestations to type 2 diabetes patients, such as insulin deficiency, fatty deposition, inflammatory infiltration, fibrosis tissue necrosis, double positive cells, endoplasmic reticulum (ER) and mitochondria damage. SnRNA-seq analysis revealed 16 clusters and cell-type-specific gene expression characterization in the pig pancreas. Notably, clusters of Ainar-M and Endocrine-U were observed at the intermediate state between the exocrine and endocrine pancreas. Beta cells of the PIGinH11 group demonstrated the dysfunction with insulin produced and secret decreased and ER stress. Moreover, like clinic patients, acinar cells expressed fewer digestive enzymes and showed organelle damage. We hypothesize that TXNIP that is upregulated by high glucose might play an important role in the dysfunction of endocrine to exocrine cells in PIGinH11 pigs.

| S-EPMC10178631 | biostudies-literature

Pancreas-specific miR-216a regulates proliferation and endocrine and exocrine cell function II

Project description:Pancreas-specific miR-216a regulates proliferation and endocrine and exocrine cell function II

| PRJNA671175 | ENA

Age-associated DNA methylation increases in mouse pancreatic islets suggest an epigenetic drift toward the exocrine pancreas epigenome

2014-12-03 | GSE63811 | GEO

LRH-1 and PTF1-L coregulate an exocrine pancreas-specific transcriptional network for digestive function

Project description:This SuperSeries is composed of the following subset Series: GSE34030: LRH-1 and PTF1-L coregulate an exocrine pancreas-specific transcriptional network for digestive function [RNA-Seq] GSE34295: LRH-1 and PTF1-L coregulate an exocrine pancreas-specific transcriptional network for digestive function [ChIP-Seq] Refer to individual Series

2011-12-09 | E-GEOD-34296 | biostudies-arrayexpress

A single cell atlas of the murine pancreatic ductal tree identifies novel cell populations with potential implications in pancreas regeneration and exocrine pathogenesis.

Project description:Pancreatic ducts form an intricate network of tubules that secrete bicarbonate and drive acinar secretions into the duodenum. This network is formed by centroacinar cells, terminal, intercalated, intracalated ducts, and the main pancreatic duct. Ductal heterogeneity at the single-cell level has been poorly characterized. Here, we used scRNA-seq to comprehensively characterize mouse ductal heterogeneity at single-cell resolution of the entire ductal epithelium from centroacinar cells to the main duct. Moreover, we used organoid cultures, injury models and pancreatic tumor samples to interrogate the role of novel ductal populations in pancreas regeneration and exocrine pathogenesis. In our study, we have identified the coexistence of 15 ductal populations within the healthy pancreas and characterized their organoid formation capacity and endocrine differentiation potential. Cluster isolation and subsequent culturing let us identify ductal cell populations with high organoid formation capacity and endocrine and exocrine differentiation potential in vitro, including Wnt-responsive-population, ciliated-population and FLRT3+ cells. Moreover, we have characterized the location of these novel ductal populations in healthy pancreas, chronic pancreatitis and tumor samples, hightlihgting a putative role of WNT-responsive, IFN-responsive and EMT-populations in pancreatic exocrine pathogenesis as their expression inceases in chronic pancreatitis and PanIN lesions. In light of our discovery of previously unidentified ductal populations, we unmask the potential roles of specific ductal populations in pancreas regeneration and exocrine pathogenesis.

2024-03-24 | GSE262292 | GEO

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