转移因子(Transfer Factor,简称TF)有无抗原特异的转移活性,是“涉及这种物质研究的最重要的一个问题。TF研究三十余年,转移活性未能得到彻底阐明,其原因之一,是要证明免疫活性从供者转移给受者,必须首先证实受者对该免疫活性的免疫原是阴性。然而以往实验所用的环境抗原不能排 Transfer factor (TF) has the antigen-specific transfer activity, which is “one of the most important issues involved in the study of this substance.” One of the reasons for more than thirty years of TF research is that transfer activity has not been fully elucidated , Is to demonstrate the transfer of immunocompetence from the donor to the recipient and must first confirm that the recipient is negative for the immunologically active immunogen. However, the environmental antigens used in previous experiments could not be discharged