"Gene therapy for cancer differs from gene therapy for hereditary diseases," says Yang Wen-kuang. Hereditary diseases often result from a single defective gene, whereas cancer involves at least five or six types of genes. Since it is not possible to rectify each of the different genes one by one, the only solution is to try and kill off the cancer cells.
「癌症的基因治療與遺傳疾病的基因治療不同」，楊文光指出，遺傳疾病往往是單一基因發生問題，癌症至少有五、六種基因發生變化，因此無法一個一個去改，只有想辦法將癌細胞殺掉。