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Pancreatic regeneration after partial pancreatectomy.
D Parekh1, C M Townsend, S Rajaraman
1Department of Surgery, University of Texas Medical Branch, Galveston 77550.
American Journal of Surgery
|January 11, 1991
Summary
The trypsin inhibitor FOY-305 stimulates pancreatic regeneration after partial pancreatectomy in rats. This agent, by releasing cholecystokinin, promotes pancreatic remnant growth, suggesting therapeutic potential for pancreatic insufficiency.
Area of Science:
- Gastroenterology
- Endocrinology
- Regenerative Medicine
Background:
- Pancreatic regeneration mechanisms and trophic hormone effects post-pancreatectomy are not fully understood.
- Partial pancreatectomy models are crucial for studying pancreatic remnant adaptation.
Purpose of the Study:
- To investigate the effects of FOY-305, a trypsin inhibitor stimulating cholecystokinin (CCK), on pancreatic regeneration after partial pancreatectomy in rats.
- To compare the regenerative capacity of the pancreatic remnant versus normal pancreatic tissue under CCK stimulation.
Main Methods:
- Rats underwent sham operation or partial pancreatectomy.
- FOY-305 or water was administered via gavage for 13 or 27 days.
- Pancreatic remnant size, hypertrophy, and hyperplasia were assessed.
Main Results:
- FOY-305 induced pancreatic remnant hypertrophy at 13 days.
- Prolonged FOY-305 treatment (27 days) resulted in both hypertrophy and hyperplasia.
- Pancreatic growth in the remnant was significantly greater than in sham-operated controls after 27 days.
Conclusions:
- Endogenous cholecystokinin released by FOY-305 stimulates pancreatic regeneration post-partial pancreatectomy.
- The pancreatic remnant exhibits heightened sensitivity to trophic stimulation compared to normal pancreatic tissue.
- FOY-305 shows potential for treating pancreatic insufficiency following extensive pancreatectomy or chronic pancreatitis.