近年的研究表明，循环中白细胞与血管内皮细胞的相互作用是特定白细胞亚群在体内运动的重要控制因素。这种相互作用包括多个步骤：（１）白细胞滚动，（２）白细胞表面整合素（ｉｎｔｅｇｒｉｎｓ）的快速活化，（３）白细胞通过活化的整合素与内皮细胞上的配体结合，（４... In recent years, studies have shown that the interaction of circulating white blood cells with vascular endothelial cells is an important control factor for the movement of specific leukocyte subpopulations in vivo. This interaction involves a number of steps: (1) leukocyte rolling, (2) rapid activation of integrins on leukocytes, (3) binding of leukocytes to ligands on endothelial cells via activated integrins, (4) ..