内皮细胞(endothelial cell,EC)是器官移植后供体、受体细胞最早接触的部位,它最早被受体免疫系统所识别,并且具有独特的生物学功能[1],是启动器官移植后同种异体排斥反应的关键。本文就有关内皮细胞的功能以及在移植排斥反应中的作用机制作一综述。1内皮细胞与移植排斥反应有 Endothelial cells (ECs) are the earliest donor and recipient cell contacts after organ transplantation. They are recognized by the recipient’s immune system as early as possible and have unique biological functions [1] The key to allogeneic rejection. This review summarizes the functions of endothelial cells and their mechanisms in graft rejection. 1 endothelial cell and graft rejection there