In recent years the research on targeting in gene therapy has made much exciting progress.

基因治疗的靶向性研究近年来取得了许多新的进展。

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Yet, researchers still have a long way to go in order to reach the goal of applying the targeting gene therapy in clinical practice.

可是要实现靶向基因治疗应用于临床实践的目标，还需要基础研究的进一步深入。

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A major goal of tumor-targeting gene therapy is to transfer genes efficiently to tumor cells by targeted vectors.

肿瘤靶向基因治疗的主要目的是用靶向性的载体将治疗基因靶向传递到肿瘤细胞。

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But scientists still face the challenge of developing the necessary gene therapy and targeting tumours with it.

BBC: Doctors fight tumour drug defences

It is hoped that gene therapy will have fewer associated side effects by targeting cancer cells.

BBC: Nano-treatment to torpedo cancer