From the observational study, significantly higher miR-205 (P < .001) and lower LRP1 protein (P < .001) expressions were found in human AAA tissues compared with nonaneurysmal aortic tissues, and no significant difference in LRP1 mRNA expression was observed.
Our results demonstrate that angiotensin II-sensitive miR-712 and its human homolog miR-205 downregulate TIMP3 and RECK, which in turn stimulate aortic MMP activity and inflammation, leading to AAA development.