癌基因来自调节细胞分裂和分化的正常细胞基因的理论最近又获新进展。研究者们现已发现,迄今鲜为人知的病毒癌基因之一erbB可能来自于编码表皮生长因子(EGF)受体的基因,至少来自与这受体基因密切相关的基因。erbB是第二个与生长因子功能有关的病毒癌基因。去年夏天,两个研究小组发现 The theory that oncogenes are derived from normal cell genes that regulate cell division and differentiation has recently gained new ground. Researchers have now discovered that one of the little-known viral oncogenes, erbB, may have come from a gene encoding the epidermal growth factor (EGF) receptor, at least from genes closely related to this receptor gene. erbB is the second viral oncogene associated with growth factor function. Last summer, two research teams discovered