之前的基于RNA的药物都是非特异性的，它靶向身体里的所有细胞而不仅仅是癌细胞。
Previous RNA-based drugs have been nonspecific, targeting all cells in the body and not just cancer cells.
脂质体作为药物载体，由于其具有靶向性、可降低药物毒性等优点而备受关注。
As a new kind of drug carries, liposomes have been widely studied for their benefits of selectivity and low toxicity.
脂质体作为药物载体，由于其具有靶向性、可降低药物毒性等优点而备受关注。
As a new kind of drug carries, liposomes have been widely studied for their benefits of selectivity and low toxicity.
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