劳斯肉瘤病毒包含触发肿瘤形成的 src 基因。

Rous sarcoma virus contains the src gene that triggers tumor formation.

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但是，这种更新的技术需要利用病毒将基因转入皮肤细胞，这增加了发生肿瘤的风险。

But the newer technique involves putting genes into the skin cells using viruses, which also raises a risk of cancer.

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研究者改造了这种病毒，增加了来自某个患者肿瘤细胞的特异抗体的基因。然后，他们使用携带这种基因的病毒感染烟草植物。

The researchers altered the virus, adding the specific antibody gene from a patient's cancer cells. Then, they infected the tobacco plants with the gene-carrying virus.

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