Rupture of intracranial aneurysms is the most common cause of nontraumatic subarachnoid hemorrhage,but the intricate neuroinflammatory processes which contribute to aneurysm pathophysiology are not well‑understood.Mou...Rupture of intracranial aneurysms is the most common cause of nontraumatic subarachnoid hemorrhage,but the intricate neuroinflammatory processes which contribute to aneurysm pathophysiology are not well‑understood.Mounting evidence has implicated the complement cascade in the progression of aneurysms from their formation to rupture.In this article,we identify and review studies that have sought to determine the role of the complement system in the aneurysm pathogenesis.The studies were generally conducted by immunhistological analyses on aneurysm tissue collected intraoperatively,and multiple components of the complement cascade and its modulators were identified in specific regions of the aneurysm wall.The results of the studies suggest that the complement cascade is locally upregulated and disinhibited in the perianeurysmal environment,and that it contributes to chronic as well as acute immunological damage to the aneurysm wall.In the future,understanding the mechanisms at work in complement‑mediated damage is necessary to leading the development of novel therapies.展开更多
文摘Rupture of intracranial aneurysms is the most common cause of nontraumatic subarachnoid hemorrhage,but the intricate neuroinflammatory processes which contribute to aneurysm pathophysiology are not well‑understood.Mounting evidence has implicated the complement cascade in the progression of aneurysms from their formation to rupture.In this article,we identify and review studies that have sought to determine the role of the complement system in the aneurysm pathogenesis.The studies were generally conducted by immunhistological analyses on aneurysm tissue collected intraoperatively,and multiple components of the complement cascade and its modulators were identified in specific regions of the aneurysm wall.The results of the studies suggest that the complement cascade is locally upregulated and disinhibited in the perianeurysmal environment,and that it contributes to chronic as well as acute immunological damage to the aneurysm wall.In the future,understanding the mechanisms at work in complement‑mediated damage is necessary to leading the development of novel therapies.
