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Expression data from of FACS separated acinar and duct cell at day 4 of suspension cultured human pancreatic exocrine cells

ABSTRACT: Expression data from of FACS separated acinar and duct cell at day 4 of suspension cultured human pancreatic exocrine cells

PROVIDER: PRJNA646904 | ENA |

REPOSITORIES: ENA

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Expression data from of FACS separated acinar and duct cell at day 4 of suspension cultured human pancreatic exocrine cells

Project description:Donor pancreata were obtained from the Beta Cell Bank of the JDRF Centre for Beta Cell Therapy in Diabetes (Brussels, Belgium), from Pancreatic Islet Processing (ECIT center) of Diabetes Research Institute at the IRCCS San Raffaele Scientific Institute (Milan, Italy) and from the DRWF Human Islet Isolation Facility (Oxford, England). Full written consent for use of donor material for research was obtained according to Belgian, Italian and English laws. This project was approved by the Medical Ethical Committee of all institutions. Cells were cultured in 3D suspension culture for four days in Advanced RPMI supplemented with 5% FBS.

2020-07-18 | GSE154629 | GEO

RNA-seq of purified human pancreatic dedifferentiated acinar cells and duct cells

Project description:Pancreatic acinar cells can dedifferentiate upon tissue injury and acquire ductal characteristics. This acquisition of duct cell features is critical in tumor development. Nevertheless, duct cells themselves are less prone for development of PDAC (pancreatic ductal adenocarcinoma) than dedifferentiated acini. We aimed to clarify which genes are unique for dedifferentiated acini. Mixed exocrine preparations of acinar and duct cells were obtained from human pancreatic donor organs and cultured to induce dedifferentiation. We lineage-labeled and FACS-purified these human dedifferentiated acinar cells and compared them to duct cells from the same donor (n=5).

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Project description:Temporal transcriptomic analysis of human pancreatic exocrine cells in 3D suspension culture

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Project description:Aberrant acinar to ductal metaplasia (ADM), one of the earliest events involved in exocrine pancreatic cancer development, is typically studied using pancreata from transgenic mouse models. We used primary, human pancreatic acinar cells to evaluate the transcriptional profile during the course of ADM.

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Human stem cell-derived pancreatic acini-like and duct-like organoids demonstrate lineage-specific differences to oncogene activation

Project description:The exocrine compartment of the pancreas consisting of ducts and acini makes up most of the pancreatic tissue and is the site of origin for pancreatitis and pancreatic ductal adenocarcinoma (PDAC). Our understanding of the initiation and progression of human PDAC is limited because of challenges associated with maintaining acinar cells in culture. Here we report the commitment of human pluripotent stem cells towards pancreatic duct-like and acini-like organoids that express properties of the neonatal exocrine pancreas. The expression of PDAC-oncogenes KRasG12D or GNASR201C induced cell lineage-specific effects where GNASR201C was more effective in ductal compared to acinar organoids. KRasG12D was more effective in modeling cancer in vivo when expressed in acinar cells and was associated with acinar to ductal metaplastic changes in culture and in vivo. Thus we demonstrate lineage tropism and plasticity in the human exocrine pancreas and identify a renewable source of ductal and acinar epithelia for understanding exocrine development and diseases.

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RNA sequencing of human pancreatic acinar and ductal cells

Project description:Flow-sorted pancreatic acinar and ductal cells from fresh human pancreatic exocrine tissue were subjected to molecular characterization to identify lineage-specific expression and epigenetic properties. Cells of both lineages were cultured and transformed via lentiviral mutation to form pancreatic ductal adenocarcinoma.

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Gene expression profiling of mouse pancreatic tumors derived from acinar or ductal cells

Project description:Acinar and ductal cells are the major epithelial cell types in the exocrine pancreas, but which of these serves as the cell-of-origin in human PDAC has been debated. Our mouse models have demonstrated that oncogenic Kras expression and Trp53 loss in pancreatic acinar or ductal cells can lead to pancreatic cancer. Here, we performed gene expression profiling of bulk acinar cell-derived and ductal cell-derived mouse pancreatic tumors to identify the transcriptomic profiles.

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