脂质体在介导核酸传递时存在的问题及解决方法
Existing problems and strategies in liposome-mediated nucleic acid delivery
-
摘要:
脂质体在介导核酸传递方面已成为当今研究热点, 而在传递过程中所遇到的一些问题严重限制了核酸发挥治疗作用。本文综述了脂质体在介导核酸传递时所遇到的问题, 如血液稳定性差、网状内皮系统吸附、脂质体的低靶向性、内涵体逃逸的阻碍等, 并针对近几年对这些问题所采取的解决方案如PEG化、配体修饰、光化学内化作用 (PCI)、降解脂质体和膜融合肽的应用等进行了详细的阐述。
Abstract:Liposome-mediated nucleic acid delivery has been a focus recently, but in the course of delivering nucleic acid, some hurdles seriously limit the nucleic acid exerting treatment effect. This review refers to a series of problems such as low blood stability, reticuloendothelial system absorption, the lower targeting of liposome and the restriction of endosomal escape which are suffered in liposome-mediated nucleic acid delivery; and gives a detail introduction of strategies such as PEGylation, ligand modification, photochemical internalization, the application of degradation liposome and membrane-lytic peptide, to overcome those problems.
下载: