suppressor gene造句

• For example , as a direct toxic effect , periodontal viruses and bacteria and their products ( endotoxins or enzymes , for example ) are toxic to surrounding cells and may directly induce mutations in tumor suppressor genes and proto - oncogenes or alter signaling pathways that affect cell proliferation or survival of epithelial cells
  例如，作为直接毒性作用，牙周病毒和细菌及在细胞周围其产生的毒性物质（例如，类毒素或酶类）可直接诱导肿瘤抑制基因和原癌基因突变或者改变细胞信号传导通路从而影响上皮细胞增殖或存活。