在鸡身上观察到，一种叫滤过性病原体的病毒，很少能从它诱发的恶性肿瘤中恢复过来。

As observed with the chickens, the filterable agent, a virus, could seldom be recovered from the malignant tumor which it had induced.

youdao

第二，山中所使用的基因中，至少有一种被认为会诱发癌症，事实也很快证明，由诱导性万能干细胞发育而成的小鼠有极大概率罹患肿瘤。

Second, at least one of the genes Yamanaka used was known to trigger cancer, and indeed it soon became clear that mice grown from iPSCs frequently developed tumors.

youdao

动物实验表明，在皮肤和黏膜局部施用总量约1g的亚硝胺时，会诱发局部或全身性的肿瘤，尤其是肝脏肿瘤。

Animal experiments showed that local application of the skin and mucous membrane of about 1g total N-nitrosamines, it will induce local or systemic tumors, especially liver cancer.

youdao