和干扰素一样，肿瘤坏死因子（TNF）似有抗病春作用和抗癌作用，不久前西德和美国分别发现TNF有显著的广谱抗病毒作用。千扰素和TNF都是免疫系统细胞产生的在其他细胞中引起反应的信使蛋白质，两者都是哺乳动物在对细菌感染起反应时夭然产生的。千扰素是作为天然的抗病毒剂发现的，以后证明 Tumor necrosis factor (TNF), like interferon, seems to have antiviral and anti-cancer effects. Not long ago, Western Germany and the United States found that TNF had a significant broad-spectrum anti-viral effect. Both interferons and TNF are messenger proteins produced by cells of the immune system that evoke responses in other cells, both of which are naturally produced by mammals in response to bacterial infections. Interferon was discovered as a natural antiviral and later proved