As a defense mechanism of organism to resist external infection,RNA interference(RNAi) has become a powerful tool for us to study its effects on antiviral infection and gene therapy in recent years.

• 作为一种可以帮助生物抵抗外在感染的体内防御机制,近年来RNA干扰已成为人们进行抗感染和基因治疗研究的有力工具。