digestive/alimentary system
• at 3 weeks after birth, the exocrine pancreas shows structural disorganization and cell death
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• extensive acinar cell death is seen by P25 and by 3-4 months of age, acinar cells are no longer the major cell type of the exocrine pancreas and are replaced by fibroblasts, adipocytes, and macrophages/leukocytes
• a subset of severely affected mutants appear to have dedifferentiation of acini into duct-like structures in lieu of the cell death seen in most mutants
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• acinar cells show no evidence of ER-stress and die through oncosis and not apoptosis, as indicated by vacuolation followed by karyolysis and loss of plasma membrane integrity
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endocrine/exocrine glands
• at 3 weeks after birth, the exocrine pancreas shows structural disorganization and cell death
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• extensive acinar cell death is seen by P25 and by 3-4 months of age, acinar cells are no longer the major cell type of the exocrine pancreas and are replaced by fibroblasts, adipocytes, and macrophages/leukocytes
• a subset of severely affected mutants appear to have dedifferentiation of acini into duct-like structures in lieu of the cell death seen in most mutants
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• acinar cells show no evidence of ER-stress and die through oncosis and not apoptosis, as indicated by vacuolation followed by karyolysis and loss of plasma membrane integrity
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• size of pancreatic mass decreases with age due to extensive acinar cell death
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• develop acute pancreatitis
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homeostasis/metabolism
N |
• mutants do not become diabetic and exhibit normal glucose clearance rates when subjected to glucose tolerance tests
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• serum amylase is elevated as early as P18, an indication of pancreatitis
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immune system
• develop acute pancreatitis
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