人类恶性肿瘤的病因发病学研究一直是人们十分注重的研究领域。随着DNA重组、DNA介导的基因转移和核酸分子杂交等技术在肿瘤基础理论研究中的应用,新近又发现人类恶性肿瘤细胞中存在一种能使正常细胞转化的癌基因(Onogene),使肿瘤病因发病学研究有了重要突破。这类癌基因广泛地存在于正常细胞内,在亿万年慢长的生物进化过程中变化甚微。同时,这类细胞癌基因(C-onc)与逆 The study of the etiology and pathology of human malignancies has always been a research area that people pay much attention to. With the application of techniques such as DNA recombination, DNA-mediated gene transfer, and nucleic acid molecular hybridization in basic theoretical research of tumors, it has recently been discovered that there is an oncogene (Onogene) in human malignant cells that enables normal cells to transform. An important breakthrough has been made in the study of the etiology and pathogenesis of tumors. This type of oncogene is widely present in normal cells and has undergone little change over the course of billions of years of slow and long biological evolution. At the same time, this type of cell oncogene (C-onc) and inverse