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A postnatal network of co-hepato/pancreatic stem/progenitors in the biliary trees of pigs versus humans

ABSTRACT: A postnatal network of co-hepato/pancreatic stem/progenitors in the biliary trees of pigs versus humans

PROVIDER: PRJNA953778 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24112641_1.fastq.gz	Fastqsanger.gz
	SRR24112641_2.fastq.gz	Fastqsanger.gz
	SRR24112642_1.fastq.gz	Fastqsanger.gz
	SRR24112642_2.fastq.gz	Fastqsanger.gz
	SRR24112643_1.fastq.gz	Fastqsanger.gz

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A postnatal network of co-hepato/pancreatic stem/progenitors in the biliary trees of pigs versus humans

Project description:A network of co-hepato/pancreatic stem/progenitors exists in pigs and humans in Brunner’s Glands (BGs) in the submucosa of the duodenum, in peribiliary glands (PBGs) of intrahepatic and extrahepatic biliary trees, and in pancreatic duct glands (PDGs) of intrapancreatic biliary trees, collectively supporting hepatic and pancreatic regeneration postnatally. The network is found in humans postnatally throughout life and, so far, has been demonstrated in pigs postnatally at least through to young adults. These stem/progenitors in vivo in pigs are in highest numbers in BGs and in PDGS nearest the duodenum, and in humans are in BGs and in PBGs in the hepato/pancreatic common duct, a duct missing postnatally in pigs. Elsewhere in PDGs in pigs and in all PDGs in humans are only committed unipotent or bipotent progenitors.

2023-08-02 | GSE229270 | GEO

A postnatal network of co-hepato/pancreatic stem/progenitors in the biliary trees of pigs and humans.

Project description:A network of co-hepato/pancreatic stem/progenitors exists in pigs and humans in Brunner's Glands in the submucosa of the duodenum, in peribiliary glands (PBGs) of intrahepatic and extrahepatic biliary trees, and in pancreatic duct glands (PDGs) of intrapancreatic biliary trees, collectively supporting hepatic and pancreatic regeneration postnatally. The network is found in humans postnatally throughout life and, so far, has been demonstrated in pigs postnatally at least through to young adulthood. These stem/progenitors in vivo in pigs are in highest numbers in Brunner's Glands and in PDGs nearest the duodenum, and in humans are in Brunner's Glands and in PBGs in the hepato/pancreatic common duct, a duct missing postnatally in pigs. Elsewhere in PDGs in pigs and in all PDGs in humans are only committed unipotent or bipotent progenitors. Stem/progenitors have genetic signatures in liver/pancreas-related RNA-seq data based on correlation, hierarchical clustering, differential gene expression and principal component analyses (PCA). Gene expression includes representative traits of pluripotency genes (SOX2, OCT4), endodermal transcription factors (e.g. SOX9, SOX17, PDX1), other stem cell traits (e.g. NCAM, CD44, sodium iodide symporter or NIS), and proliferation biomarkers (Ki67). Hepato/pancreatic multipotentiality was demonstrated by the stem/progenitors' responses under distinct ex vivo conditions or in vivo when patch grafted as organoids onto the liver versus the pancreas. Therefore, pigs are logical hosts for translational/preclinical studies for cell therapies with these stem/progenitors for hepatic and pancreatic dysfunctions.

| S-EPMC10394089 | biostudies-literature

Benary2021 - tissue dynamics of the hepato-pancreato-biliary organ system

Project description:Single cell-based studies have revealed tremendous cellular heterogeneity in stem cell and progenitor compartments, suggesting continuous differentiation trajectories with intermixing of cells at various states of lineage commitment and notable degree of plasticity during organogenesis. The hepato-pancreato-biliary organ system relies on a small endoderm progenitor compartment that gives rise to a variety of different adult tissues, including liver, pancreas, gallbladder, and extra-hepatic bile ducts. Experimental manipulation of various developmental signals in the mouse embryo underscored important cellular plasticity in this embryonic territory. This is also reflected in the existence of human genetic syndromes as well as congenital or environmentally-caused human malformations featuring multiorgan phenotypes in liver, pancreas and gallbladder. Nevertheless, the precise lineage hierarchy and succession of events leading to the segregation of an endoderm progenitor compartment into hepatic, biliary, and pancreatic structures are not yet established. Here, we combine computational modelling approaches with genetic lineage tracing to assess the tissue dynamics accompanying the ontogeny of the hepato-pancreato-biliary organ system. We show that a multipotent progenitor domain persists at the border between liver and pancreas, even after pancreatic fate is specified, contributing to the formation of several organ derivatives, including the liver. Moreover, using single-cell RNA sequencing we define a specialized niche that possibly supports such extended cell fate plasticity.

2021-07-01 | MODEL2105030001 | BioModels

mRNA expression profiling of ERCP biliary brushings of malignant biliary strictures

Project description:Identification of differential gene expression uging endoscopic biliary brushings Bile duct brishings of benign biliary strictures and malignant biliary strictures, samples snap frozen in liquid nitrogen

2012-03-01 | E-GEOD-34166 | biostudies-arrayexpress

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Project description:The purpose of the study is to evaluate whether the novel anti-cancer drug OXY111A is safe and tolerated in patients with primary and secondary hepato-pancreato-biliary and gastrointestinal neoplasia as measured by exploring the maximum tolerated dose (MTD). At level of MTD, additional patients will be included aimed for assessing the efficacy profile in these neoplasia entities.

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Primary Biliary Cirrhosis

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| PRJNA80809 | ENA

Human biliary epithelial cells from discarded donor livers rescue bile duct structure and function in a mouse model of biliary disease

Project description:Biliary diseases can cause inflammation, fibrosis, bile duct destruction and eventually liver failure. There are no curative treatments for biliary disease except for liver transplantation. New therapies are urgently required. We have purified human Biliary Epithelial Cells (hBEC) from discarded human livers. hBECs were tested as a cell therapy in a mouse model of biliary disease where the conditional deletion of Mdm2 in cholangiocytes causes senescence, biliary strictures and fibrosis. hBEC are expandable, phenotypically stable and help restore biliary structure and function, highlighting their regenerative capacity and a potential alternative to liver transplantation for biliary disease.

2022-03-03 | GSE155498 | GEO

Biliary organoids uncover delayed epithelial development and barrier function in biliary atresia.

Project description:Background: RNASeq was performed on organoids derived from livers of normal healthy donors and patients with biliary atresia to characterize transcriptomic signatures. Methods: Organoids generated from livers of normal healthy donors and patients with biliary atresia were cultured either in expansion (undifferentiated: 3 NCOs and 11 BACOs) or differentiation medium (differentiated: 3 BACOs). Liver tissues obtained from deceased-donor subjects served as normal controls (N=3). Total RNA was isolated from organoids and liver biopsy tissue specimens. Results: Organoids from patients with biliary atresia showed abnormal cell polarity, loss of tight junctions, increased permeability and decreased expression of genes related to epidermal growth factor (EGF)- and fibroblast growth factor 2 (FGF2)-signaling. When treated with EGF+FGF2, biliary atresia organoids expressed differentiation and functional markers with restored cell polarity. Conclusion: Organoids from biliary atresia are viable and have evidence of halted epithelial development. The induction of developmental markers, improved cell‐cell junction, and decreased epithelial permeability by EGF and FGF2 identifies potential strategies to promote epithelial maturation and function.

2021-10-25 | GSE186444 | GEO

mRNA expression profiling of ERCP biliary brushings of malignant biliary strictures

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2012-03-01 | GSE34166 | GEO

Bile proteome reveals biliary regeneration during normothermic preservation of human donor livers

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2023-11-21 | E-MTAB-13501 | biostudies-arrayexpress

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