多年来,许多科学家都在探索肿瘤的病因基础。早年,虽从动物中分离出了致癌病毒,并认识了包括人类致癌基因在内的30余种细胞癌基因(c-onc),而从人体细胞中分离致癌性逆转录病毒,到80年代初才取得了突破。尽管这一领域还相当年轻,由于有动物逆转录病 For many years many scientists have explored the etiology of tumors. In the early years, although oncogenic viruses were isolated from animals and more than 30 kinds of oncogenes (c-onc) including human oncogenes were recognized, the oncogenic retrovirus was isolated from human cells and by the early 1980s Only made a breakthrough. Although the field is still quite young, there are animal-borne retroviruses