在小鼠身上的试验表明,转基因癌细胞可以表达一种抗癌细胞因子移生于肿瘤,并抑制其发展。五年前,纽约市纪念斯隆凯特林癌症中心的科学家们发现,循环肿瘤细胞(CTCs)既可以移生于新的转移瘤,也可以再回到原发肿瘤细胞。正是利用CTCs的这种双向运动,新墨西哥大学的研究人员及其同事们给小鼠注射了转基因CTCs,可表达一种抗 Experiments in mice show that transgenic cancer cells can express an anti-cancer cytokine that is transplanted to the tumor and inhibits its development. Five years ago, scientists at the Memorial Sloan Kettering Cancer Center in New York City found that circulating tumor cells (CTCs) can either migrate to new metastases or return to primary tumor cells. It is with this two-way movement of CTCs that researchers at the University of New Mexico and colleagues injected mice with transgenic CTCs that express an anti-