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对癌细胞具有自然抵抗性的细胞,主要有NKcell和Killer T cell等淋巴细胞以及巨噬细胞。在癌组织周围或组织内有吞噬细胞浸润,在其移动活跃,出现炎症反应时,说明是对癌的自然抵抗性在起作用。但现在知道,癌细胞为了癌发育的目的,可分泌一种能减弱淋巴细胞和巨噬细胞,或者减弱机体炎症反应的物质。因此,癌组织内的巨噬细胞的活性及非特异性细胞损害性有时则很弱。另外还清楚地知道,在癌患者中,担当结核菌素反应等Ⅳ变态反应淋巴细胞的
Cells naturally resistant to cancer cells mainly include lymphocytes and macrophages such as NKcell and Killer T cell. Infiltration of phagocytic cells around or in cancerous tissue, active mobilization, and inflammatory response indicate that it is a natural resistance to cancer. However, it is now known that for the purpose of cancer development, cancer cells secrete a substance that weakens lymphocytes and macrophages or weakens the body’s inflammatory response. Therefore, the activity and non-specific cell damage of macrophages in cancer tissues are sometimes very weak. In addition, it is also clearly known that in patients with cancer, they are responsible for tuberculin reaction and other allergic lymphocytes.