本研究用体外细胞模型、体外细胞恶性转化模型、肿瘤攻击模型以及焦化作业人群,观察硒对α粒子、CdCl_2、苯并(a)芘、焦油沥青、Lewis肺癌细胞攻击以及焦炉逸散物所引起的体外巨噬细胞特异吞噬功能降低、C_(57)鼠肺天然杀伤细胞活力抑制、带瘤鼠肿瘤细胞增殖、大鼠肺、人胚肺细胞 In this study, in vitro cell model, malignant transformation model in vitro, tumor attack model and coking workers, the effects of selenium on α-particle, CdCl 2, benzo (a) pyrene, tar pitch, Lewis lung cancer cell attack and coke oven Induced phagocytosis of macrophages in vitro, the viability of natural killer cells in C_ (57) mice, the proliferation of tumor cells in tumor-bearing mice, the proliferation of rat lung and human embryonic lung cells