Acute pancreatitis: animal models and recent advances in basic research

Area of Science:

• Gastroenterology and Hepatology
• Pancreatology
• Translational Medicine

Background:

• Acute pancreatitis (AP) is a severe inflammatory condition of the pancreas, often leading to systemic complications and high mortality.
• While gallstones and alcohol cause most AP cases, some are idiopathic, and the precise pathogenesis remains unclear.
• Premature trypsinogen activation within the pancreas triggers autodigestion, a common feature in AP development.

Purpose of the Study:

• To critically evaluate commonly used animal models for studying acute pancreatitis.
• To discuss recent advances in understanding risk factors and potential novel therapeutic targets for AP.
• To highlight the limitations of current animal models in replicating the clinical spectrum of human AP.

Main Methods:

• Review of existing literature on animal models of acute pancreatitis.
• Analysis of pathogenetic mechanisms including cyclooxygenase-2, substance P, and angiotensin II.
• Evaluation of the relevance of animal models to clinical AP scenarios.

Main Results:

• Animal models vary in their ability to replicate AP, from mild edematous to severe necrotizing forms.
• Emerging research suggests roles for cyclooxygenase-2, substance P, and angiotensin II in AP pathogenesis.
• No single animal model perfectly mimics the diverse clinical presentations and severity observed in human AP.

Conclusions:

• Critical evaluation of animal models is essential for advancing AP research.
• Understanding novel risk factors may lead to improved therapeutic strategies for AP.
• Further development of more clinically relevant animal models is needed to better understand and treat acute pancreatitis.