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Song L, Guo Y, Roebuck D, Chen C, Yang M, Yang Z, Sreedharan S, Glover C, Thomas JA, Liu D, Guo S, Chen R, Zhou D. Terminal PEGylated DNA-Gold Nanoparticle Conjugates Offering High Resistance to Nuclease Degradation and Efficient Intracellular Delivery of DNA Binding Agents. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18707-16. [PMID: 26237203 PMCID: PMC4554298 DOI: 10.1021/acsami.5b05228] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 08/03/2015] [Indexed: 05/20/2023]
Abstract
Over the past 10 years, polyvalent DNA-gold nanoparticle (DNA-GNP) conjugate has been demonstrated as an efficient, universal nanocarrier for drug and gene delivery with high uptake by over 50 different types of primary and cancer cell lines. A barrier limiting its in vivo effectiveness is limited resistance to nuclease degradation and nonspecific interaction with blood serum contents. Herein we show that terminal PEGylation of the complementary DNA strand hybridized to a polyvalent DNA-GNP conjugate can eliminate nonspecific adsorption of serum proteins and greatly increases its resistance against DNase I-based degradation. The PEGylated DNA-GNP conjugate still retains a high cell uptake property, making it an attractive intracellular delivery nanocarrier for DNA binding reagents. We show that it can be used for successful intracellular delivery of doxorubicin, a widely used clinical cancer chemotherapeutic drug. Moreover, it can be used for efficient delivery of some cell-membrane-impermeable reagents such as propidium iodide (a DNA intercalating fluorescent dye currently limited to the use of staining dead cells only) and a diruthenium complex (a DNA groove binder), for successful staining of live cells.
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Affiliation(s)
- Lei Song
- School
of Chemistry and Astbury Structure for Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
| | - Yuan Guo
- School
of Chemistry and Astbury Structure for Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
| | - Deborah Roebuck
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| | - Chun Chen
- Department
of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Min Yang
- UCL
School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, U.K.
| | - Zhongqiang Yang
- Department
of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | | | - Caroline Glover
- Department
of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Jim A. Thomas
- Department
of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Dongsheng Liu
- Department
of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Shengrong Guo
- School
of Chemistry and Astbury Structure for Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
| | - Rongjun Chen
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| | - Dejian Zhou
- School
of Chemistry and Astbury Structure for Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
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Ikeda Y, Nagasaki Y. Impacts of PEGylation on the gene and oligonucleotide delivery system. J Appl Polym Sci 2013. [DOI: 10.1002/app.40293] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yutaka Ikeda
- Department of Materials Sciences; Graduate School of Pure and Applied Sciences, University of Tsukuba; Ibaraki 305-8573 Japan
| | - Yukio Nagasaki
- Department of Materials Sciences; Graduate School of Pure and Applied Sciences, University of Tsukuba; Ibaraki 305-8573 Japan
- Master's School of Medical Sciences; Graduate School of Comprehensive Human Sciences, University of Tsukuba; Ibaraki 305-8573 Japan
- Satellite Laboratory; International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute of Materials Science (NIMS); Tennodai 1-1-1, Tsukuba Ibaraki 305-8573 Japan
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Ikeda Y, Katamachi J, Kawasaki H, Nagasaki Y. Novel Protein PEGylation Chemistry via Glutalaldehyde-Functionalized PEG. Bioconjug Chem 2013; 24:1824-7. [DOI: 10.1021/bc400169s] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Yukio Nagasaki
- Satellite
Laboratory, International Center for Materials Nanoarchitectonics
(WPI-MANA), National Institute of Materials Science (NIMS), Tennodai
1-1-1, Tsukuba, Ibaraki 305-8573, Japan
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