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每一类细胞都具有在胚胎发育期间快速生长的遗传能力、分化能力并确保它构成组织结构的功能.因此,在不同类型细胞中都含有重叠的一套基因参与这些过程和参与细胞对环境的反应.除了刺激生长和分化的基因(如一定的原癌基因)外,大部分的细胞似乎都有限制过度生长的肿瘤抑制基因.这些基因的功能可能是调节(抑制)生长促进因子的表达,从而发挥控制生长的作用.
Each type of cell has the ability to grow rapidly during embryonic development, its ability to differentiate and ensure that it functions as an organizational structure. Therefore, there is an overlapping set of genes in different types of cells involved in these processes and involved in cell-to-environmental Responses. In addition to stimulating growth and differentiation genes (such as certain proto-oncogenes), most cells appear to have tumor suppressor genes that limit overgrowth. The function of these genes may be to regulate (inhibit) the expression of growth-promoting factors, In order to control the growth of the role.