2024年7月26日
This protocol describes a methodical surgical approach to modeling advanced abdominal aortic aneurysms in mice by a combination of directly applying elastase to the infrarenal aorta and administering ß-aminopropionitrile through drinking water.
Our research aims to understand the pathophysiology of abdominal aortic aneurysm. In particular, we like to know in the molecular term how aneurysm ruptures. We believe by modeling aortic aneurysm in mice, males and females, will help us to develop a new treatment for this highly lethal disease that urgently needs pharmacological treatment.
The pathophysiology of abdominal aortic aneurysm is multifactorial and complex, which makes animal modeling difficult. The elastase/BAPN model, however, reliably produces aneurysms in mice, which model many of the features and characteristics of the human disease. Combining BAPN drinking water with topical elastase surgery can produce large true infrarenal aneurysms, which form intraluminal thrombus, progressively dilate, and eventually rupture.
This allows researchers the opportunity to study features like rupture risk and aneurysm growth.
本研究旨在通过一种可靠的小鼠模型阐明腹主动脉瘤(AAA)的病理生理机制。通过联合使用弹性蛋白酶处理和ß-氨基丙腈(BAPN)给药,该研究成功复制了人类疾病的特征,从而有助于深入理解动脉瘤的生长与破裂过程。
通过联合使用局部弹性蛋白酶和口服BAPN,在小鼠中可靠地建立腹主动脉瘤(AAA)模型,可为血管疾病研究提供机制性去风险化和靶点验证。该方法重现了人类腹主动脉瘤的关键特征,有助于提高临床前研究的预测可信度,并为治疗药物开发中的风险调整型项目决策提供依据。
这种优化的小鼠AAA模型融入了从发现到临床前研究的连续过程,架起了早期机制研究与动脉瘤生长和破裂转化研究之间的桥梁。