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Sun S, Cheraga N, Jiang HN, Xiao QR, Gao PC, Wang Y, Wei YY, Wang XW, Jiang Y. Bioinspired DNA nanocockleburs for targeted delivery of doxorubicin. Colloids Surf B Biointerfaces 2019; 186:110733. [PMID: 31864113 DOI: 10.1016/j.colsurfb.2019.110733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 10/25/2022]
Abstract
A variety of three-dimensional DNA assemblies have been proposed as drug carriers owing to their good biocompatibility and easy fabrication. In this study, inspired by the structure of cockleburs, a novel aptamer-tethered DNA assembly was developed for effective targeted drug delivery. The Apt-nanocockleburs were fabricated via a facile process of DNA base pairing: four complementary DNA single strands, including one aptamer-ended strand and three sticky-end strands, were applied to pair with each other. The main body of the nanocockleburs can load doxorubicin (Dox) whilst the covered aptamer spines bind to the target MCF-7 cells. The self-assembled Apt-nanocockleburs exhibit higher cell uptake as well as increased cytotoxicity to MCF-7 cells than DNA nanocockleburs without aptamers. This study provided a DNA constructing platform to produce new drug carriers with high selectivity for cancer targeted drug delivery.
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Affiliation(s)
- Si Sun
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Nihad Cheraga
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Han-Ning Jiang
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Qian-Ru Xiao
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Peng-Cheng Gao
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Yang Wang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Ying-Ying Wei
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China
| | - Xiao-Wei Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210036, PR China
| | - Yong Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, PR China.
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