NK细胞通过识别某些目前尚不清楚的肿瘤细胞的“靶结构”杀伤破坏肿瘤细胞,对肿瘤的发生发展有明确的控制作用,是免疫监视功能的主要组成部分。众所周知,机体NK细胞功能不足时,肿瘤便逃避免疫监视,得以生存和发展;而很少了解的另一方面,即肿瘤细胞自身的“适应性调变”所致 NK cells kill and destroy tumor cells by recognizing the “target structure” of some currently unclear tumor cells, and have a clear control over the occurrence and development of tumors. It is a major component of immune surveillance. As we all know, when the body’s NK cell function is insufficient, the tumor escapes immune surveillance and can survive and develop. The other side that is rarely known is the “adaptive modulation” of the tumor cell itself.