从 70年代起人们就认识到 ,ＮＫ细胞是一种重要的淋巴细胞 ,不仅在机体抗病毒和抗肿瘤免疫中发挥着重要作用 ,而且可以产生一些细胞因子 ,在造血、炎症和免疫应答过程中扮演重要角色。ＮＫ细胞不同于Ｔ、Ｂ淋巴细胞 ,它不表达ＴＣＲ ,也不表达ＢＣＲ。它对自身正常细胞无杀伤作 It has been recognized since the 1970s that NK cells are an important lymphocyte that plays an important role not only in the antiviral and anti-tumor immunity of the body, but also in the production of cytokines that, during hematopoietic, inflammatory and immune responses play an important role. NK cells are different from T, B lymphocytes, which do not express TCR nor express BCR. It has no lethal effect on its own normal cells