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Wu Z, Zhan S, Fan W, Ding X, Wu X, Zhang W, Fu Y, Huang Y, Huang X, Chen R, Li M, Xu N, Zheng Y, Ding B. Peptide-Mediated Tumor Targeting by a Degradable Nano Gene Delivery Vector Based on Pluronic-Modified Polyethylenimine. Nanoscale Res Lett 2016; 11:122. [PMID: 26932761 PMCID: PMC4773318 DOI: 10.1186/s11671-016-1337-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/23/2016] [Indexed: 05/29/2023]
Abstract
Polyethylenimine (PEI) is considered to be a promising non-viral gene delivery vector. To solve the toxicity versus efficacy and tumor-targeting challenges of PEI used as gene delivery vector, we constructed a novel non-viral vector DR5-TAT-modified Pluronic-PEI (Pluronic-PEI-DR5-TAT), which was based on the attachment of low-molecular-weight polyethylenimine (LMW-PEI) to the amphiphilic polymer Pluronic to prepare Pluronic-modified LMW-PEI (Pluronic-PEI). This was then conjugated to a multifunctional peptide containing a cell-penetrating peptide (TAT) and a synthetic peptide that would bind to DR5-a receptor that is overexpressed in cancer cells. The vector showed controlled degradation, favorable DNA condensation and protection performance. The Pluronic-PEI-DR5-TAT/DNA complexes at an N/P ratio of 15:1 were spherical nanoparticles of 122 ± 11.6 nm and a zeta potential of about 22 ± 2.8 mV. In vitro biological characterization results indicated that Pluronic-PEI-DR5-TAT/DNA complexes had a higher specificity for the DR5 receptor and were taken up more efficiently by tumor cells than normal cells, compared to complexes formed with PEI 25 kDa or Pluronic-PEI. Thus, the novel complexes showed much lower cytotoxicity to normal cells and higher gene transfection efficiency in tumor cells than that exhibited by PEI 25 kDa and Pluronic-PEI. In summary, our novel, degradable non-viral tumor-targeting vector is a promising candidate for use in gene therapy.
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Affiliation(s)
- Zhaoyong Wu
- Department of Pharmacy, Jiaxing Maternal and Child Health Care Hospital, Affiliated Hospital of Jiaxing University, Jiaxing, People's Republic of China
| | - Shuyu Zhan
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Wei Fan
- Department of Pharmacy, The 425th Hospital of PLA, Sanya, People's Republic of China
| | - Xueying Ding
- Department of Pharmaceutics, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Xin Wu
- Department of Pharmaceutics, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Wei Zhang
- Department of Pharmacy, Shanghai Pulmonary Hospital, Shanghai, People's Republic of China
| | - Yinghua Fu
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Yueyan Huang
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Xuan Huang
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Rubing Chen
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Mingjuan Li
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Ningyin Xu
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China
| | - Yongxia Zheng
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China.
| | - Baoyue Ding
- Department of Pharmaceutics, Medical College of Jiaxing University, Jiaxing, People's Republic of China.
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