Sequentially Site-Specific Delivery of Apoptotic Protein and Tumor-Suppressor Gene for Combination Cancer Therapy.

Clicks: 229
ID: 29941
2019
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Abstract
Nanocarrier-mediated codelivery of multiple anticancer drugs is a potential strategy for enhanced efficacy of combination cancer treatment by unifying differential pharmacokinetic properties and maintaining an optimal ratio of drug cargoes. However, a programmable codelivery system is highly desired to deliver different therapeutics to their specific sites of action to pursue maximized combinational effect. Herein a liposome-based nanoassembly (p53/C-rNC/L-FA) is developed for intracellular site-specific delivery of an apoptotic protein cytochrome c (CytoC) and a plasmid DNA encoding tumor-suppressing p53 protein (p53 DNA). p53/C-rNC/L-FA consists of an acid-activated fusogenic liposomal membrane shell modified with folic acid (L-FA) and a DNA/protein complex core assembled by the p53 DNA, protamine and CytoC-encapsulated redox-responsive nanocapsule (C-rNC). Intratumoral and intraendosomal acidities promote membrane fusion between liposome and biomembrane, resulting in release of the encapsulated p53/C-rNC complex into the cytoplasm. The cytoplasmic reduction causes degradation of C-rNC with release of CytoC that induces tumor cell apoptosis. The p53 DNA is transported into the nucleus by the aid of the cationic protamine and thus generates expression of the p53 protein that enhances apoptosis combined with CytoC. p53/C-rNC/L-FA is demonstrated to significantly induce tumor cell apoptosis and inhibit tumor growth in the orthotopic breast tumor mouse model.
Reference Key
chen2019sequentiallysmall Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Chen, Xiaojie;Zhu, Qiuwen;Xu, Xiao;Shen, Shiyang;Zhang, Ying;Mo, Ran;
Journal Small (Weinheim an der Bergstrasse, Germany)
Year 2019
DOI
10.1002/smll.201902998
URL
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