肿瘤发生的遗传学基础周伟编译叶舜华审校上海医科大学环境卫生教研室（２０００３２）肿瘤起源于人体自身组织。有证据表明：肿瘤通常源于单个细胞发生了一系列遗传学改变。每个健康细胞都有特定的形状，与周围排列有序的细胞彼此吻合。只有当外源性刺激和抑制信号的平衡... The genetic basis of tumorigenesis Zhou Wei Compiles Ye Xiuhua’s Department of Environmental Hygiene, Shanghai Medical University (200032) Tumors originate from the body’s own tissues. There is evidence that tumors usually result from a series of genetic changes in a single cell. Each healthy cell has a specific shape that matches the surrounding aligned cells. Only when exogenous stimulation and suppression signals are balanced...