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Abstract

Analysis and Optimization of Nutritional Set-up for Murine Pancreatic Acinar Cells

Context Pancreatic acinar cell cultivation oses a serious problem due to limitations in the in vitro survival time despite variations of dissociation protocols, culture media and nutrient supplements. Objective To establish a long term culture of murine pancreatic acinar cells which retain their viability, monolayer formation and responsiveness to secretagogues. In order to investigate the mechanism of the short-life ofacinar cells studied in vitro, we studied their survival under the influence of different supplements on nutrient media. Interventions Dissociated pancreatic acini were prepared from BALB/c mice pancreata by collagenase digestion supplemented with bovine serum albumin fraction V and soybean trypsin inhibitor. A nutrient set-up was designed for their long term survival in vitro. Results It was observed that mouse pancreatic acinar cells dissociated in presence of bovine serum albumin fraction V and soybean trypsin inhibitor result in 95% viability. Further cultivation of these acinar cells in Waymouth's MB 752/1 medium supplemented with 10% fetal calf serum (v/v), soybean trypsin inhibitor, bovine serum albumin, dexamethasone, and pidermal growth factor results in their survival for more than 6 days in culture with 85% viability,retention of the secretagogue responsiveness and formation of a monolayer without any extracellular matrix coating. Conclusions Our study clearly demonstrates that the addition of soybean trypsin inhibitor to culture medium reduces zymogen granule fragility and acinar cell death, thus increasing their viability for sufficiently long periods The present study offers an excellent, in vitro model for the investigation of exocrine dysfunction in response to acinar cell injury.


Author(s):

Savita Kurup, Ramesh R Bhonde



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