______________________"We genetically modify the Salmonella so that it is unable to survive in healthy tissues, but has a preferential homing (attraction) to tumors, which is a very nutrient-rich environment where they grow like crazy and, in so doing, kill the cancer cells within the tumor."________________________我们对沙门氏菌进行了基因修改使其无法在健康组织中正常生存,但是肿瘤对于这些基因来讲是一个很好的生存条件,这是一个富有营养的环境他们可以疯狂的生长,然后就可以发挥修改过基因的沙门氏菌的作用来杀死癌细胞.
