Kir4.1 is coexpressed with stemness markers in activated astrocytes in the injured brain and a Kir4.1 inhibitor BaCl(2) negatively regulates neurosphere formation in culture.

Kir4.1 与受损脑组织中活化的星形胶质细胞中的干细胞标记物共表达，而 Kir4.1 抑制剂 BaCl(2) 可负调控培养物中的神经球形成