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Pathologically relevant trypsinogen activation in pancreatitis.
1Department of SurgeryBoston University Chobanian & Avedisian School of Medicine Boston Massachusetts United States.
American Journal of Physiology. Gastrointestinal and Liver Physiology
|December 18, 2025
Summary
Pancreatitis involves premature trypsinogen activation in the pancreas. Autoactivation is a key driver, while cathepsin B plays a lesser role in this inflammatory disorder.
Area of Science:
- Gastroenterology
- Biochemistry
- Pathology
Background:
- Pancreatitis is a pancreatic inflammatory disorder with acute, recurrent acute, and chronic forms.
- It leads to severe complications and long-term functional impairment.
- Premature trypsinogen activation within the pancreas is a key pathological mechanism.
Purpose of the Study:
- To explore the biochemical pathways of intrapancreatic trypsinogen activation.
- To discuss the contributions of these pathways to pancreatitis pathogenesis.
Main Methods:
- Review of genetic studies.
- Biochemical analysis.
- Animal model studies.
Main Results:
- Evidence strongly supports autoactivation as a key driver of pancreatitis pathogenesis.
- Cathepsin B-mediated activation may play a context-dependent, lesser role.
- Trypsinogen mutations associated with human pancreatitis highlight autoactivation's significance.
Conclusions:
- Autoactivation is a critical mechanism in pancreatitis.
- Understanding these activation pathways is crucial for managing pancreatitis.
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