最近由于分子生物学与免疫学的相互渗透,对特异性抗原的传递途径与物质基础以及抗体形成机理进行了深入研究。发现核酸,特别是核糖核酸(RNA)在其中起着重要的作用,它能传递遗传和免疫信息。用动物或人体肿瘤细胞(或肿瘤抗原)攻击(注射)异种动物(豚鼠、羊等)使其致敏。处死动物,取其淋巴结、脾脏和肝脏,抽提其核糖核酸,实验证实此种(异种)免疫核 Recently, due to the interpenetration of molecular biology and immunology, in-depth study of specific antigen delivery pathways, material basis, and antibody formation mechanism has been conducted. Nucleic acids, particularly ribonucleic acid (RNA), are found to play an important role in this, and they can transmit genetic and immune information. The sensitized animals (guinea pigs, sheep, etc.) are challenged (injected) with animal or human tumor cells (or tumor antigens). Animals were sacrificed, their lymph nodes, spleen, and liver were taken and their ribonucleic acid extracted to confirm the existence of this (xeno) immune nucleus.