| 摘要 |
The present invention relates to a new family of cell-penetrating peptides, comprising an amino acid sequence X1LX2RALWRLX3RX4LWRLX5X6X7X8, wherein X1 is beta-A or S, X2 is F or W, X3 is L, W, C or I, X4 is S, A, N or T, X5 is L or W, X6 is W or R, X7 is K or R, and X8 is A or none. These peptides exhibit high efficiency, low toxicity and a natural tropism for lung tissues, and can be used either in simple complex with the cargo to be vectorised, or in nanoparticles comprising two layers of cell-penetrating peptides around the cargo. |
