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Cell penetrating peptides and their applications in siRNA delivery

Xiao-Feng Wang, Yang Liu, Zhuo Wang, Zhen-Jun Yang*, Li-He Zhang   

  1. State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
  • Received:2009-02-16 Revised:2009-05-10 Online:2009-06-15 Published:2009-06-15
  • Contact: Zhen-Jun Yang*

Abstract:

Given its ability to knock down essentially any gene of interest, siRNA has been one of the promising candidates for gene therapy. However, like other nucleic-acid-based drugs, its poor cellular uptake poses a major challenge. Here we briefly summarize the use of cell penetrating peptides (CPPs) as a novel and promising approach for siRNA delivery. The main advantages of CPPs are their low toxicity and high efficiency.

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