水通道蛋白4在缺血性卒中后的作用及调控机制研究进展

Recent advances in the role and regulatory mechanisms of aquaporin 4 in ischemic stroke

水通道蛋白4(AQP4)为大脑中最为丰富的水通道蛋白成员,其功能活动与缺血性卒中后的病理过程紧密相关。缺血性卒中后,机体通过转录过程以及翻译后修饰等多种方式影响AQP4蛋白的表达水平、磷酸化状态以及其在细胞膜上的极性分布。作者综述了AQP4的基本结构、生理功能及其在缺血性卒中后的动态表达变化与作用机理,具体讨论了AQP4在缺血性卒中后脑组织水肿形成、血-脑屏障通透性增加和神经炎症加剧中作用及调控机制的研究进展,为探索针对缺血性卒中的有效治疗策略提供新的视角。

As the main water channel expressed in the brain,aquaporin 4(AQP4)has been implicated in the pathological process of ischemic stroke.After ischemic stroke,the expression,phosphorylation and polarity distribution of AQP4 are affected by the process of transcription and post-translational modification.The paper summarized the basic structure,physiological function,dynamic expression changes and mechanisms of AQP4 in this review,specifically discussing the role of AQP4 in cerebral edema,blood-brain barrier permeability and neuroinflammation after ischemic stroke,offering an up-to-date perspective on further effective therapeutic strategies for ischemic stroke.