Tumor microenvironment-response calcium phosphate hybrid nanoparticles enhanced siRNAs targeting tumors in vivo

Zhihua Wu, Jianhua Chen, Ying Sun, De Zhao, Ming Shen, Lili Huang, Qing Xu, Yourong Duan, Yaogang Li*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Short interfering RNA (siRNA)-based therapy has a high potential for application in cancer gene therapy. However, delivery of siRNA to target cells is limited by many factors such as serum ribonuclease (RNase) degradation, off-target effects, and inadequate cellular uptake. In this study, an enzyme-response PEG/Lipids/calcium phosphate hybrid delivery system was constructed for siRNA. The nearly neutral charged siRNA@NP2 was resistant to serum-induced degradation. Compared with the non-enzyme-response siRNA@NP1, siRNA@NP2 had efficient delivery in both SMMC-7721 cell lines and SMMC-7721-bearing nude mice. Moreover, safety evaluation of the nanoparticles revealed that they had no significant toxicity both in vitro and in vivo. The developed siRNA@NP2 delivery system presents an efficient tool for siRNA-based cancer gene therapy in vivo.

Original languageEnglish
Pages (from-to)1816-1825
Number of pages10
JournalJournal of Biomedical Nanotechnology
Volume14
Issue number10
DOIs
Publication statusPublished - Oct 2018
Externally publishedYes

Keywords

  • Cancer Gene Therapy
  • Delivery System
  • Matrix Metalloproteinase
  • SiRNA Delivery
  • Targeting

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