外源性核糖核酸对机体生物化学和免疫学作用的研究及其在防治疾病中的应用日益受到人们的重视。我们设想,正常动物在其生存过程中,必然经常不断地与各种致病因子包括致癌因子作斗争而获得某种免疫力。因而采用健康猪之脾脏提取的核糖核酸有可能将供体(猪)淋巴细胞之非特异性免疫信息(广谱的)传递给受体抑或起到免疫佐剂的作用。鉴于外源性核糖核酸无种属特异性,可在不同种属间交叉转移免疫功能,为此我们 Exogenous RNA on the body’s biochemical and immunological effects of research and its application in the prevention and treatment of diseases are increasingly subject to people’s attention. We envisage that normal animals, in the course of their survival, must often and constantly struggle with a variety of causative agents, including carcinogenic agents, to gain some immunity. Thus, RNA extracted from the spleen of healthy pigs has the potential to deliver (broad-spectrum) non-specific immune information from donor (porcine) lymphocytes to the recipient or to act as an adjuvant for immunity. In view of the fact that exogenous RNA has no species specificity, it can cross-transfer immune function between different species, for which we