Swell, or Not Too Swell: Cytokines Regulate Arterial Aneurysm Formation

Arterial remodeling participates pivotally in many diseases including arterial aneurysms. In this issue of Immunity , Da Ros et al. (2017) report that, in experimental aortic aneurysm formation, neutralization of interleukin-1β reduced arterial wall stiffness and hampered aneurysm development.