肿瘤免疫学已直用于临床实践,如癌症的免疫诊断,癌症的免疫治疗等。临床发现肿瘤患者的细胞免疫状态(如淋巴细胞转化率等)低于正常人群,提示机体免疫状态和肿瘤发生、发展有一定的关系。在先天性免疫缺陷或后天长期应用免疫抑制剂的人群中,自发或诱发的肿瘤发病率明显高于 Tumor immunology has been used directly in clinical practice, such as cancer immunological diagnosis, cancer immunotherapy and so on. Clinically found that the cell immune status (such as lymphocyte transformation rate) of cancer patients is lower than the normal population, suggesting that the body’s immune status has a certain relationship with the occurrence and development of tumors. In people with congenital immunodeficiency or acquired long-term immunosuppression, the incidence of spontaneous or induced tumors is significantly higher