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Cited by 508

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

Oligolysine-based coating protects DNA nanostructures from low-salt denaturation and nuclease degradation

Open access
Ponnuswamy, Nandhini, Bastings, Maartje M. C., Nathwani, Bhavik, Ryu, Ju Hee, Chou, Leo Y. T., Vinther, Mathias, Li, Weiwei Aileen, Anastassacos, Frances M., Mooney, David J., Shih, William M.·2017·Nature Communications

Abstract

DNA nanostructures have evoked great interest as potential therapeutics and diagnostics due to ease and robustness of programming their shapes, site-specific functionalizations and responsive behaviours. However, their utility in biological fluids can be compromised through denaturation induced by physiological salt concentrations and degradation mediated by nucleases. Here we demonstrate that DNA nanostructures coated by oligolysines to 0.5:1 N:P (ratio of nitrogen in lysine to phosphorus in DNA), are stable in low salt and up to tenfold more resistant to DNase I digestion than when uncoated. Higher N:P ratios can lead to aggregation, but this can be circumvented by coating instead with an oligolysine-PEG copolymer, enabling up to a 1,000-fold protection against digestion by serum nucleases. Oligolysine-PEG-stabilized DNA nanostructures survive uptake into endosomal compartments and, in a mouse model, exhibit a modest increase in pharmacokinetic bioavailability. Thus, oligolysine-PEG is a one-step, structure-independent approach that provides low-cost and effective protection of DNA nanostructures for in vivo applications.

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Crossref · 10.1038/ncomms15654

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Metadata

Authors
Ponnuswamy, N., Bastings, M. M. C., Nathwani, B., Ryu, J. H., Chou, L. Y. T., Vinther, M., Li, W. A., Anastassacos, F. M., Mooney, D. J., & Shih, W. M.
Venue
Nature Communications
Published
2017-05-31
Volume
8
Issue
1
Pages
15654-15654
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2618072306
Cited by
508
References
27
FWCI
16.89
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Oligolysine-based coating protects DNA nanostructures from low-salt denaturation and nuclease degradation. https://app.cochat.ai/papers/10.1038/ncomms15654
The paper
Ponnuswamy, N., Bastings, M. M. C., Nathwani, B., Ryu, J. H., Chou, L. Y. T., Vinther, M., Li, W. A., Anastassacos, F. M., Mooney, D. J., & Shih, W. M. (2017). Oligolysine-based coating protects DNA nanostructures from low-salt denaturation and nuclease degradation. Nature Communications. https://doi.org/10.1038/ncomms15654

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.