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Enlund E, Julin S, Linko V, Kostiainen MA. Structural stability of DNA origami nanostructures in organic solvents. NANOSCALE 2024; 16:13407-13415. [PMID: 38910453 PMCID: PMC11256221 DOI: 10.1039/d4nr02185a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 06/18/2024] [Indexed: 06/25/2024]
Abstract
DNA origami nanostructures have attracted significant attention as an innovative tool in a variety of research areas, spanning from nanophotonics to bottom-up nanofabrication. However, the use of DNA origami is often restricted by their rather limited structural stability in application-specific conditions. The structural integrity of DNA origami is known to be superstructure-dependent, and the integrity is influenced by various external factors, for example cation concentration, temperature, and presence of nucleases. Given the necessity to functionalize DNA origami also with non-water-soluble entities, it is important to acquire knowledge of the structural stability of DNA origami in various organic solvents. Therefore, we herein systematically investigate the post-folding DNA origami stability in a variety of polar, water-miscible solvents, including acetone, ethanol, DMF, and DMSO. Our results suggest that the structural integrity of DNA origami in organic solvents is both superstructure-dependent and dependent on the properties of the organic solvent. In addition, DNA origami are generally more resistant to added organic solvents in folding buffer compared to that in deionized water. DNA origami stability can be maintained in up to 25-40% DMF or DMSO and up to 70-90% acetone or ethanol, with the highest overall stability observed in acetone. By rationally selecting both the DNA origami design and the solvent, the DNA origami stability can be maintained in high concentrations of organic solvents, which paves the way for more extensive use of non-water-soluble compounds for DNA origami functionalization and complexation.
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Affiliation(s)
- Eeva Enlund
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland.
| | - Sofia Julin
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland.
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland.
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland.
- LIBER Center of Excellence, Aalto University, 00076 Aalto, Finland
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2
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Dornbusch D, Hanke M, Tomm E, Kielar C, Grundmeier G, Keller A, Fahmy K. Cold denaturation of DNA origami nanostructures. Chem Commun (Camb) 2024; 60:5590-5593. [PMID: 38666465 DOI: 10.1039/d3cc05985e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
The coupling of structural transitions to heat capacity changes leads to destabilization of macromolecules at both elevated and lowered temperatures. DNA origami not only exhibit this property but also provide a nanoscopic observable of cold denaturation processes by directing intramolecular strain to the most sensitive elements within their hierarchical architecture.
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Affiliation(s)
- Daniel Dornbusch
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, Dresden 01328, Germany.
- Technische Universität Dresden, BIOTEC, Cluster of Excellence Physics of Life, Dresden 01062, Germany
| | - Marcel Hanke
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, Paderborn 33098, Germany.
| | - Emilia Tomm
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, Paderborn 33098, Germany.
| | - Charlotte Kielar
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, Dresden 01328, Germany.
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, Dresden 01328, Germany
| | - Guido Grundmeier
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, Paderborn 33098, Germany.
| | - Adrian Keller
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, Paderborn 33098, Germany.
| | - Karim Fahmy
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, Dresden 01328, Germany.
- Technische Universität Dresden, BIOTEC, Cluster of Excellence Physics of Life, Dresden 01062, Germany
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3
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Garcia-Diosa JA, Grundmeier G, Keller A. Effect of DNA Origami Nanostructures on Bacterial Growth. Chembiochem 2024; 25:e202400091. [PMID: 38299762 DOI: 10.1002/cbic.202400091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/02/2024]
Abstract
DNA origami nanostructures are a powerful tool in biomedicine and can be used to combat drug-resistant bacterial infections. However, the effect of unmodified DNA origami nanostructures on bacteria is yet to be elucidated. With the aim to obtain a better understanding of this phenomenon, the effect of three DNA origami shapes, i.e., DNA origami triangles, six-helix bundles (6HBs), and 24-helix bundles (24HBs), on the growth of Gram-negative Escherichia coli and Gram-positive Bacillus subtilis is investigated. The results reveal that while triangles and 24HBs can be used as a source of nutrients by E. coli and thereby promote population growth, their effect is much smaller than that of genomic single- and double-stranded DNA. However, no effect on E. coli population growth is observed for the 6HBs. On the other hand, B. subtilis does not show any significant changes in population growth when cultured with the different DNA origami shapes or genomic DNA. The detailed effect of DNA origami nanostructures on bacterial growth thus depends on the competence signals and uptake mechanism of each bacterial species, as well as the DNA origami shape. This should be considered in the development of antimicrobial DNA origami nanostructures.
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Affiliation(s)
- Jaime Andres Garcia-Diosa
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098, Paderborn, Germany
| | - Guido Grundmeier
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098, Paderborn, Germany
| | - Adrian Keller
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098, Paderborn, Germany
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4
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Youssef S, Tsang E, Samanta A, Kumar V, Gothelf KV. Reversible Protection and Targeted Delivery of DNA Origami with a Disulfide-Containing Cationic Polymer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2301058. [PMID: 37916910 DOI: 10.1002/smll.202301058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 10/08/2023] [Indexed: 11/03/2023]
Abstract
DNA nanostructures have considerable biomedical potential as intracellular delivery vehicles as they are highly homogeneous and can be functionalized with high spatial resolution. However, challenges like instability under physiological conditions, limited cellular uptake, and lysosomal degradation limit their use. This paper presents a bio-reducible, cationic polymer poly(cystaminebisacrylamide-1,6-diaminohexane) (PCD) as a reversible DNA origami protector. PCD displays a stronger DNA affinity than other cationic polymers. DNA nanostructures with PCD protection are shielded from low salt conditions and DNase I degradation and show a 40-fold increase in cell-association when linked to targeting antibodies. Confocal microscopy reveals a potential secondary cell uptake mechanism, directly delivering the nanostructures to the cytoplasm. Additionally, PCD can be removed by cleaving its backbone disulfides using the intracellular reductant, glutathione. Finally, the application of these constructs is demonstrated for targeted delivery of a cytotoxic agent to cancer cells, which efficiently decreases their viability. The PCD protective agent that is reported here is a simple and efficient method for the stabilization of DNA origami structures. With the ability to deprotect the DNA nanostructures upon entry of the intracellular space, the possibility for the use of DNA origami in pharmaceutical applications is enhanced.
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Affiliation(s)
- Sarah Youssef
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, 8000, Denmark
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Emily Tsang
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, 8000, Denmark
| | - Anirban Samanta
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, 8000, Denmark
| | - Vipin Kumar
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, 8000, Denmark
| | - Kurt V Gothelf
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, 8000, Denmark
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5
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Nasiri M, Bahadorani M, Dellinger K, Aravamudhan S, Vivero-Escoto JL, Zadegan R. Improving DNA nanostructure stability: A review of the biomedical applications and approaches. Int J Biol Macromol 2024; 260:129495. [PMID: 38228209 PMCID: PMC11060068 DOI: 10.1016/j.ijbiomac.2024.129495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/18/2024]
Abstract
DNA's programmable, predictable, and precise self-assembly properties enable structural DNA nanotechnology. DNA nanostructures have a wide range of applications in drug delivery, bioimaging, biosensing, and theranostics. However, physiological conditions, including low cationic ions and the presence of nucleases in biological systems, can limit the efficacy of DNA nanostructures. Several strategies for stabilizing DNA nanostructures have been developed, including i) coating them with biomolecules or polymers, ii) chemical cross-linking of the DNA strands, and iii) modifications of the nucleotides and nucleic acids backbone. These methods significantly enhance the structural stability of DNA nanostructures and thus enable in vivo and in vitro applications. This study reviews the present perspective on the distinctive properties of the DNA molecule and explains various DNA nanostructures, their advantages, and their disadvantages. We provide a brief overview of the biomedical applications of DNA nanostructures and comprehensively discuss possible approaches to improve their biostability. Finally, the shortcomings and challenges of the current biostability approaches are examined.
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Affiliation(s)
- Mahboobeh Nasiri
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, USA
| | - Mehrnoosh Bahadorani
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, USA
| | - Kristen Dellinger
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, USA
| | - Shyam Aravamudhan
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, USA
| | - Juan L Vivero-Escoto
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Reza Zadegan
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, USA.
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6
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Krishnamurthy K, Rajendran A, Nakata E, Morii T. Near Quantitative Ligation Results in Resistance of DNA Origami Against Nuclease and Cell Lysate. SMALL METHODS 2024; 8:e2300999. [PMID: 37736703 DOI: 10.1002/smtd.202300999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Indexed: 09/23/2023]
Abstract
There have been limited efforts to ligate the staple nicks in DNA origami which is crucial for their stability against thermal and mechanical treatments, and chemical and biological environments. Here, two near quantitative ligation methods are demonstrated for the native backbone linkage at the nicks in origami: i) a cosolvent dimethyl sulfoxide (DMSO)-assisted enzymatic ligation and ii) enzyme-free chemical ligation by CNBr. Both methods achieved over 90% ligation in 2D origami, only CNBr-method resulted in ≈80% ligation in 3D origami, while the enzyme-alone yielded 31-55% (2D) or 22-36% (3D) ligation. Only CNBr-method worked efficiently for 3D origami. The CNBr-mediated reaction is completed within 5 min, while DMSO-method took overnight. Ligation by these methods improved the structural stability up to 30 °C, stability during the electrophoresis and subsequent extraction, and against nuclease and cell lysate. These methods are straightforward, non-tedious, and superior in terms of cost, reaction time, and efficiency.
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Affiliation(s)
| | - Arivazhagan Rajendran
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
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7
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Qin C, Zhang RH, Li Z, Zhao HM, Li YW, Feng NX, Li H, Cai QY, Hu X, Gao Y, Xiang L, Mo CH, Xing B. Insights into the enzymatic degradation of DNA expedited by typical perfluoroalkyl acids. ECO-ENVIRONMENT & HEALTH (ONLINE) 2023; 2:278-286. [PMID: 38435362 PMCID: PMC10902504 DOI: 10.1016/j.eehl.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/27/2023] [Accepted: 09/05/2023] [Indexed: 03/05/2024]
Abstract
Perfluoroalkyl acids (PFAAs) are considered forever chemicals, gaining increasing attention for their hazardous impacts. However, the ecological effects of PFAAs remain unclear. Environmental DNA (eDNA), as the environmental gene pool, is often collected for evaluating the ecotoxicological effects of pollutants. In this study, we found that all PFAAs investigated, including perfluorohexanoic acid, perfluorooctanoic acid, perfluorononanoic acid, and perfluorooctane sulfonate, even at low concentrations (0.02 and 0.05 mg/L), expedited the enzymatic degradation of DNA in a nonlinear dose-effect relationship, with DNA degradation fragment sizes being lower than 1,000 bp and 200 bp after 15 and 30 min of degradation, respectively. This phenomenon was attributed to the binding interaction between PFAAs and AT bases in DNA via groove binding. van der Waals force (especially dispersion force) and hydrogen bonding are the main binding forces. DNA binding with PFAAs led to decreased base stacking and right-handed helicity, resulting in loose DNA structure exposing more digestion sites for degrading enzymes, and accelerating the enzymatic degradation of DNA. The global ecological risk evaluation results indicated that PFAA contamination could cause medium and high molecular ecological risk in 497 samples from 11 contamination-hot countries (such as the USA, Canada, and China). The findings of this study show new insights into the influence of PFAAs on the environmental fates of biomacromolecules and reveal the hidden molecular ecological effects of PFAAs in the environment.
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Affiliation(s)
- Chao Qin
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Run-Hao Zhang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Zekai Li
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Hai-Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Nai-Xian Feng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Xiaojie Hu
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Lei Xiang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
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8
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Hanke M, Dornbusch D, Tomm E, Grundmeier G, Fahmy K, Keller A. Superstructure-dependent stability of DNA origami nanostructures in the presence of chaotropic denaturants. NANOSCALE 2023; 15:16590-16600. [PMID: 37747200 DOI: 10.1039/d3nr02045b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
The structural stability of DNA origami nanostructures in various chemical environments is an important factor in numerous applications, ranging from biomedicine and biophysics to analytical chemistry and materials synthesis. In this work, the stability of six different 2D and 3D DNA origami nanostructures is assessed in the presence of three different chaotropic salts, i.e., guanidinium sulfate (Gdm2SO4), guanidinium chloride (GdmCl), and tetrapropylammonium chloride (TPACl), which are widely employed denaturants. Using atomic force microscopy (AFM) to quantify nanostructural integrity, Gdm2SO4 is found to be the weakest and TPACl the strongest DNA origami denaturant, respectively. Despite different mechanisms of actions of the selected salts, DNA origami stability in each environment is observed to depend on DNA origami superstructure. This is especially pronounced for 3D DNA origami nanostructures, where mechanically more flexible designs show higher stability in both GdmCl and TPACl than more rigid ones. This is particularly remarkable as this general dependence has previously been observed under Mg2+-free conditions and may provide the possibility to optimize DNA origami design toward maximum stability in diverse chemical environments. Finally, it is demonstrated that melting temperature measurements may overestimate the stability of certain DNA origami nanostructures in certain chemical environments, so that such investigations should always be complemented by microscopic assessments of nanostructure integrity.
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Affiliation(s)
- Marcel Hanke
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098 Paderborn, Germany.
| | - Daniel Dornbusch
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, Dresden 01328, Germany.
- Cluster of Excellence Physics of Life, TU Dresden, Dresden 01062, Germany
| | - Emilia Tomm
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098 Paderborn, Germany.
| | - Guido Grundmeier
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098 Paderborn, Germany.
| | - Karim Fahmy
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, Dresden 01328, Germany.
- Cluster of Excellence Physics of Life, TU Dresden, Dresden 01062, Germany
| | - Adrian Keller
- Paderborn University, Technical and Macromolecular Chemistry, Warburger Str. 100, 33098 Paderborn, Germany.
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9
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Talbot H, Madhanagopal BR, Hayden A, Halvorsen K, Chandrasekaran AR. Fluorometric Determination of DNA Nanostructure Biostability. ACS APPLIED BIO MATERIALS 2023; 6:3074-3078. [PMID: 37262927 PMCID: PMC10999248 DOI: 10.1021/acsabm.3c00287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The analysis and improvement of DNA nanostructure biostability is one of the keys areas of progress needed in DNA nanotechnology applications. Here, we present a plate-compatible fluorometric assay for measuring DNA nanostructure biostability using the common intercalator ethidium bromide. We demonstrate the assay by testing the biostability of duplex DNA, a double crossover DNA motif, and a DNA origami nanostructure against different nucleases and in fetal bovine serum. This method scales well to measure a large number of samples using a plate reader and can complement existing methods for assessing and developing robust DNA nanostructures.
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Affiliation(s)
- Hannah Talbot
- The RNA Institute, University at Albany, State University of New York, Albany, New York 12203, United States
| | - Bharath Raj Madhanagopal
- The RNA Institute, University at Albany, State University of New York, Albany, New York 12203, United States
| | - Andrew Hayden
- The RNA Institute, University at Albany, State University of New York, Albany, New York 12203, United States
| | - Ken Halvorsen
- The RNA Institute, University at Albany, State University of New York, Albany, New York 12203, United States
| | - Arun Richard Chandrasekaran
- The RNA Institute, University at Albany, State University of New York, Albany, New York 12203, United States
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10
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Linko V, Keller A. Stability of DNA Origami Nanostructures in Physiological Media: The Role of Molecular Interactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301935. [PMID: 37093216 DOI: 10.1002/smll.202301935] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/05/2023] [Indexed: 05/03/2023]
Abstract
Programmable, custom-shaped, and nanometer-precise DNA origami nanostructures have rapidly emerged as prospective and versatile tools in bionanotechnology and biomedicine. Despite tremendous progress in their utilization in these fields, essential questions related to their structural stability under physiological conditions remain unanswered. Here, DNA origami stability is explored by strictly focusing on distinct molecular-level interactions. In this regard, the fundamental stabilizing and destabilizing ionic interactions as well as interactions involving various enzymes and other proteins are discussed, and their role in maintaining, modulating, or decreasing the structural integrity and colloidal stability of DNA origami nanostructures is summarized. Additionally, specific issues demanding further investigation are identified. This review - through its specific viewpoint - may serve as a primer for designing new, stable DNA objects and for adapting their use in applications dealing with physiological media.
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Affiliation(s)
- Veikko Linko
- Institute of Technology, University of Tartu, Nooruse 1, Tartu, 50411, Estonia
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P. O. Box 16100, Aalto, 00076, Finland
| | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
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11
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Liu F, Liu X, Gao W, Zhao L, Huang Q, Arai T. Transmembrane capability of DNA origami sheet enhanced by 3D configurational changes. iScience 2023; 26:106208. [PMID: 36876133 PMCID: PMC9982283 DOI: 10.1016/j.isci.2023.106208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/11/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023] Open
Abstract
DNA origami-engineered nanostructures are widely used in biomedical applications involving transmembrane delivery. Here, we propose a method to enhance the transmembrane capability of DNA origami sheets by changing their configuration from two-dimensional to three-dimensional. Three DNA nanostructures are designed and constructed, including the two-dimensional rectangular DNA origami sheet, the DNA tube, and the DNA tetrahedron. The latter two are the variants of the DNA origami sheet with three-dimensional morphologies achieved through one-step folding and multi-step parallel folding separately. The design feasibility and structural stability of three DNA nanostructures are confirmed by molecular dynamics simulations. The fluorescence signals of the brain tumor models demonstrate that the tubular and the tetrahedral configurational changes could dramatically increase the penetration efficiency of the original DNA origami sheet by about three and five times, respectively. Our findings provide constructive insights for further rational designs of DNA nanostructures for transmembrane delivery.
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Affiliation(s)
- Fengyu Liu
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xiaoming Liu
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wendi Gao
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, and School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Libo Zhao
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, and School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Qiang Huang
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Tatsuo Arai
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.,Center for Neuroscience and Biomedical Engineering, The University of Electro-Communications, Tokyo 182-8585, Japan
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12
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Wang W, Chen Y, Yin H, Lv J, Lin M, Wu ZS. Center backbone-rigidified DNA polygonal nanostructures and bottom face-templated polyhedral pyramids with structural stability in a complex biological medium. Acta Biomater 2023; 161:100-111. [PMID: 36905953 DOI: 10.1016/j.actbio.2023.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 02/15/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023]
Abstract
Due to the sequence programmability, good biocompatibility, versatile functionalities and vast sequence space, DNA oligonucleotides are considered to be ideal building blocks for the assembly of diverse nanostructures in one, two and three dimensions that are capable of engineering of multiple functional nucleic acids into a useful tool to implement intended tasks in biological and medical field. However, the construction of wireframe nanostructures consisting of only a few DNA strands remains quite challenging mainly because of the molecular flexibility-based uncontrollability of size and shape. In this contribution, utilizing gel electrophoretic analysis and atomic force microscopy, we demonstrate the modeling assembly technique for the construction of wireframe DNA nanostructures that can be divided into two categories: rigid center backbone-guided modeling (RBM) and bottom face-templated assembly (BTA) that are responsible for the construction of DNA polygons and polyhedral pyramids, respectively. The highest assembly efficiency (AE) is about 100%, while the lowest AE is not less than 50%. Moreover, when adding one edge for polygons or one side face for pyramids, we only need to add one oligonucleotide strand. Especially, the advanced polygons (e.g., pentagon and hexagon) of definite shape are for the first time constructed. Along this line, introduction of cross-linking strands enables the hierarchical assembly of polymer polygons and polymer pyramids. These wireframe DNA nanostructures exhibit the substantially enhanced resistance to nuclease degradation and maintain their structural integrity in fetal bovine serum for several hours even if the vulnerable nicks are not sealed. The proposed modeling assembly technique represents important progress toward the development of DNA nanotechnology and is expected to promote the application of DNA nanostructures in biological and biomedical fields. STATEMENT OF SIGNIFICANCE: DNA oligonucleotides are considered to be ideal building blocks for the assembly of diverse nanostructures. However, the construction of wireframe nanostructures consisting of only a few DNA strands remains quite challenging. In this contribution, we demonstrate the modeling technique for the construction of different wireframe DNA nanostructures: rigid center backbone-guided modeling (RBM) and bottom face-templated assembly (BTA) that are responsible for the assembly of DNA polygons and polyhedral pyramids, respectively. Moreover, cross-linking strands enables the hierarchical assembly of polymer polygons and polymer pyramids. These wireframe DNA nanostructures exhibit the substantially enhanced resistance to nuclease degradation and maintain their structural integrity in fetal bovine serum for several hours, promoting the application of DNA nanostructures in biological and biomedical fields.
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Affiliation(s)
- Weijun Wang
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Yaxin Chen
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Hongwei Yin
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Jingrui Lv
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Mengling Lin
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Zai-Sheng Wu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China.
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13
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Kou Q, Wang L, Zhang L, Ma L, Fu S, Su X. Simulation-Assisted Localized DNA Logical Circuits for Cancer Biomarkers Detection and Imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205191. [PMID: 36287076 DOI: 10.1002/smll.202205191] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/30/2022] [Indexed: 06/16/2023]
Abstract
DNA-based nanodevices equipped with localized modules have been promising probes for biomarker detection. Such devices heavily rely on the intramolecular hybridization reaction. However, there is a lack of mechanistic insights into this reaction that limits the sensing speed and sensitivity. A coarse-grained model is utilized to simulate the intramolecular hybridization of localized DNA circuits (LDCs) not only optimizing the performance, but also providing mechanistic insights into the hybridization reaction. The simulation guided-LDCs enable the detection of multiple biomarkers with high sensitivity and rapid speed showing good consistency with the simulation. Fluorescence assays demonstrate that the simulation-guided LDC shows an enhanced sensitivity up to 9.3 times higher than that of the same probes without localization. The detection limits of ATP, miRNA, and APE1 reach 0.14 mM, 0.68 pM, and 0.0074 U mL-1 , respectively. The selected LDC is operated in live cells with good success in simultaneously detecting the biomarkers and discriminating between cancer cells and normal cells. LDC is successfully applied to detect the biomarkers in cancer tissues from patients, allowing the discrimination of cancer/adjacent/normal tissues. This work herein presents a design workflow for DNA nanodevices holding great potential for expanding the applications of DNA nanotechnology in diagnostics and therapeutics.
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Affiliation(s)
- Qiaoni Kou
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Lei Wang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Linghao Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Liang Ma
- Clinical Laboratory, China-Japan Friendship Hospital, Beijing, 100029, P. R. China
| | - Shengnan Fu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xin Su
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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14
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Liu J, Li M, Zuo X. DNA Nanotechnology-Empowered Live Cell Measurements. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204711. [PMID: 36124715 DOI: 10.1002/smll.202204711] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/30/2022] [Indexed: 06/15/2023]
Abstract
The systematic analysis and precise manipulation of a variety of biomolecules should lead to unprecedented findings in fundamental biology. However, conventional technology cannot meet the current requirements. Despite this, there has been progress as DNA nanotechnology has evolved to generate DNA nanostructures and circuits over the past four decades. Many potential applications of DNA nanotechnology for live cell measurements have begun to emerge owing to the biocompatibility, nanometer addressability, and stimulus responsiveness of DNA. In this review, the DNA nanotechnology-empowered live cell measurements which are currently available are summarized. The stability of the DNA nanostructures, in a cellular microenvironment, which is crucial for accomplishing precise live cell measurements, is first summarized. Thereafter, measurements in the extracellular and intracellular microenvironment, in live cells, are introduced. Finally, the challenges that are innate to, and the further developments that are possible in this nascent field are discussed.
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Affiliation(s)
- Jiangbo Liu
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Min Li
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xiaolei Zuo
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
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15
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Liao HS, Akhtar I, Werner C, Slipets R, Pereda J, Wang JH, Raun E, Nørgaard LO, Dons FE, Hwu EET. Open-source controller for low-cost and high-speed atomic force microscopy imaging of skin corneocyte nanotextures. HARDWAREX 2022; 12:e00341. [PMID: 35936941 PMCID: PMC9352456 DOI: 10.1016/j.ohx.2022.e00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/02/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
High-speed atomic force microscopes (HS-AFMs) with high temporal resolution enable dynamic phenomena to be visualized at nanoscale resolution. However, HS-AFMs are more complex and costlier than conventional AFMs, and particulars of an open-source HS-AFM controller have not been published before. These high entry barriers hinder the popularization of HS-AFMs in both academic and industrial applications. In addition, HS-AFMs generally have a small imaging area that limits the fields of implementation. This study presents an open-source controller that enables a low-cost simplified AFM to achieve a maximum tip-sample velocity of 5,093 µm/s (9.3 s/frame, 512 × 512 pixels), which is nearly 100 times higher than that of the original controller. Moreover, the proposed controller doubles the imaging area to 46.3 × 46.3 µm2 compared to that of the original system. The low-cost HS-AFM can successfully assess the severity of atopic dermatitis (AD) by measuring the nanotexture of human skin corneocytes in constant height DC mode. The open-source controller-based HS-AFM system costs less than $4,000, which provides resource-limited research institutes with affordable access to high-throughput nanoscale imaging to further expand the HS-AFM research community.
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Affiliation(s)
- Hsien-Shun Liao
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
| | - Imtisal Akhtar
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Christian Werner
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - Roman Slipets
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Jorge Pereda
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Jen-Hung Wang
- Department of Mechatronics and Robotics, Technical University of Munich, Germany
| | - Ellen Raun
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Laura Olga Nørgaard
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Frederikke Elisabet Dons
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Edwin En Te Hwu
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
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16
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Seitz I, Ijäs H, Linko V, Kostiainen MA. Optically Responsive Protein Coating of DNA Origami for Triggered Antigen Targeting. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38515-38524. [PMID: 35984232 PMCID: PMC9437894 DOI: 10.1021/acsami.2c10058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
DNA nanostructures have emerged as modular building blocks in several research fields including biomedicine and nanofabrication. Their proneness to degradation in various environments has led to the development of a variety of nature-inspired protection strategies. Coating of DNA origami nanostructures with proteins can circumvent degradation and alter their properties. Here, we have used a single-chain variable antibody fragment and serum albumin to construct positively charged and stimuli-responsive protein-dendron conjugates, which were complexed with DNA origami through electrostatic interactions. Using a stepwise assembly approach, the coated nanostructures were studied for their interaction with the corresponding antigen in fluorescence-based immunoassays. The results suggest that the antibody-antigen interaction can be disturbed by the addition of the bulky serum albumin. However, this effect is fully reversible upon irradiation of the structures with an optical stimulus. This leads to a selective dissociation of the serum albumin from the nanostructure due to cleavage of a photolabile group integrated in the dendron structure, exposing the antibody fragment and enabling triggered binding to the antigen, demonstrating that serum albumin can be considered as an externally controlled "camouflaging" agent. The presented stimuli-responsive complexation approach is highly versatile regarding the choice of protein components and could, therefore, find use in DNA origami protection, targeting, and delivery as well as their spatiotemporal control.
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Affiliation(s)
- Iris Seitz
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Heini Ijäs
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Veikko Linko
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- LIBER
Center of Excellence, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Mauri A. Kostiainen
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- LIBER
Center of Excellence, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
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17
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Deng Y, Tan Y, Zhang Y, Zhang L, Zhang C, Ke Y, Su X. Design of Uracil-Modified DNA Nanotubes for Targeted Drug Release via DNA-Modifying Enzyme Reactions. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34470-34479. [PMID: 35867518 DOI: 10.1021/acsami.2c09488] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
DNA nanostructure-based responsive drug delivery has become an increasingly potent method in cancer therapy. However, a variety of important cancer biomarkers have not been explored in searching of new and efficient targeted delivery systems. Uracil degradation glycosylase and human apurinic/apyrimidinic endonuclease are significantly more active in cancer cells. Here, we developed uracil-modified DNA nanotubes that can deliver drugs to tumor cells through an enzyme-induced disassembly process. Although the reaction of these enzymes on their natural DNA substrates has been established, their reactivity on self-assembled nanostructures of nucleic acids is not well understood. We leveraged molecular dynamic simulation based on coarse-grained model to forecast the enzyme reactivity on different DNA designs. The experimental data are highly consistent with the simulation results. It is the first example of molecule simulation being used to guide the design of enzyme-responsive DNA nano-delivery systems. Importantly, we found that the efficiency of drug release from the nanotubes can be regulated by tuning the positions of uracil modification. The DNA nanotubes equipped with cancer-specific aptamer AS1411 are used to deliver doxorubicin to tumor-bearing mice not only effectively inhibiting tumor growth but also protecting major organs from drug-caused damage. We believe that this work provides new knowledge on and insights into future design of enzyme-responsive DNA-based nanocarriers for drug delivery.
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Affiliation(s)
- Yingnan Deng
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuanhang Tan
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - YingWei Zhang
- College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Linghao Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - ChunYi Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yonggang Ke
- Wallance H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30322, United States
| | - Xin Su
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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18
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Hanke M, Hansen N, Tomm E, Grundmeier G, Keller A. Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate. Int J Mol Sci 2022; 23:ijms23158547. [PMID: 35955680 PMCID: PMC9368935 DOI: 10.3390/ijms23158547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 11/16/2022] Open
Abstract
Guanidinium (Gdm) undergoes interactions with both hydrophilic and hydrophobic groups and, thus, is a highly potent denaturant of biomolecular structure. However, our molecular understanding of the interaction of Gdm with proteins and DNA is still rather limited. Here, we investigated the denaturation of DNA origami nanostructures by three Gdm salts, i.e., guanidinium chloride (GdmCl), guanidinium sulfate (Gdm2SO4), and guanidinium thiocyanate (GdmSCN), at different temperatures and in dependence of incubation time. Using DNA origami nanostructures as sensors that translate small molecular transitions into nanostructural changes, the denaturing effects of the Gdm salts were directly visualized by atomic force microscopy. GdmSCN was the most potent DNA denaturant, which caused complete DNA origami denaturation at 50 °C already at a concentration of 2 M. Under such harsh conditions, denaturation occurred within the first 15 min of Gdm exposure, whereas much slower kinetics were observed for the more weakly denaturing salt Gdm2SO4 at 25 °C. Lastly, we observed a novel non-monotonous temperature dependence of DNA origami denaturation in Gdm2SO4 with the fraction of intact nanostructures having an intermediate minimum at about 40 °C. Our results, thus, provide further insights into the highly complex Gdm–DNA interaction and underscore the importance of the counteranion species.
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19
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Dai Z, Xie X, Gao Z, Li Q. DNA‐PAINT Super‐Resolution Imaging for Characterization of Nucleic Acid Nanostructures. Chempluschem 2022; 87:e202200127. [DOI: 10.1002/cplu.202200127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/12/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Zheze Dai
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering CHINA
| | - Xiaodong Xie
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering 200240 Shanghai CHINA
| | - Zhaoshuai Gao
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering 200240 Shanghai CHINA
| | - Qian Li
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering Dongchuan Road 800中国 200240 Shanghai CHINA
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20
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Piskunen P, Latham R, West CE, Castronovo M, Linko V. Integrating CRISPR/Cas systems with programmable DNA nanostructures for delivery and beyond. iScience 2022; 25:104389. [PMID: 35633938 PMCID: PMC9130510 DOI: 10.1016/j.isci.2022.104389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Precise genome editing with CRISPR/Cas paves the way for many biochemical, biotechnological, and medical applications, and consequently, it may enable treatment of already known and still-to-be-found genetic diseases. Meanwhile, another rapidly emerging field—structural DNA nanotechnology—provides a customizable and modular platform for accurate positioning of nanoscopic materials, for e.g., biomedical uses. This addressability has just recently been applied in conjunction with the newly developed gene engineering tools to enable impactful, programmable nanotechnological applications. As of yet, self-assembled DNA nanostructures have been mainly employed to enhance and direct the delivery of CRISPR/Cas, but lately the groundwork has also been laid out for other intriguing and complex functions. These recent advances will be described in this perspective.
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21
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Hanke M, Dornbusch D, Hadlich C, Rossberg A, Hansen N, Grundmeier G, Tsushima S, Keller A, Fahmy K. Anion-specific structure and stability of guanidinium-bound DNA origami. Comput Struct Biotechnol J 2022; 20:2611-2623. [PMID: 35685373 PMCID: PMC9163702 DOI: 10.1016/j.csbj.2022.05.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 12/13/2022] Open
Abstract
While the folding of DNA into rationally designed DNA origami nanostructures has been studied extensively with the aim of increasing structural diversity and introducing functionality, the fundamental physical and chemical properties of these nanostructures remain largely elusive. Here, we investigate the correlation between atomistic, molecular, nanoscopic, and thermodynamic properties of DNA origami triangles. Using guanidinium (Gdm) as a DNA-stabilizing but potentially also denaturing cation, we explore the dependence of DNA origami stability on the identity of the accompanying anions. The statistical analyses of atomic force microscopy (AFM) images and circular dichroism (CD) spectra reveals that sulfate and chloride exert stabilizing and destabilizing effects, respectively, already below the global melting temperature of the DNA origami triangles. We identify structural transitions during thermal denaturation and show that heat capacity changes ΔCp determine the temperature sensitivity of structural damage. The different hydration shells of the anions and their potential to form Gdm+ ion pairs in concentrated salt solutions modulate ΔCp by altered wetting properties of hydrophobic DNA surface regions as shown by molecular dynamics simulations. The underlying structural changes on the molecular scale become amplified by the large number of structurally coupled DNA segments and thereby find nanoscopic correlations in AFM images.
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22
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Xin Y, Piskunen P, Suma A, Li C, Ijäs H, Ojasalo S, Seitz I, Kostiainen MA, Grundmeier G, Linko V, Keller A. Environment-Dependent Stability and Mechanical Properties of DNA Origami Six-Helix Bundles with Different Crossover Spacings. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107393. [PMID: 35363419 DOI: 10.1002/smll.202107393] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/14/2022] [Indexed: 05/25/2023]
Abstract
The internal design of DNA nanostructures defines how they behave in different environmental conditions, such as endonuclease-rich or low-Mg2+ solutions. Notably, the inter-helical crossovers that form the core of such DNA objects have a major impact on their mechanical properties and stability. Importantly, crossover design can be used to optimize DNA nanostructures for target applications, especially when developing them for biomedical environments. To elucidate this, two otherwise identical DNA origami designs are presented that have a different number of staple crossovers between neighboring helices, spaced at 42- and 21- basepair (bp) intervals, respectively. The behavior of these structures is then compared in various buffer conditions, as well as when they are exposed to enzymatic digestion by DNase I. The results show that an increased number of crossovers significantly improves the nuclease resistance of the DNA origami by making it less accessible to digestion enzymes but simultaneously lowers its stability under Mg2+ -free conditions by reducing the malleability of the structures. Therefore, these results represent an important step toward rational, application-specific DNA nanostructure design.
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Affiliation(s)
- Yang Xin
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Petteri Piskunen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Antonio Suma
- Dipartimento di Fisica, Università di Bari and Sezione INFN di Bari, Bari, 70126, Italy
| | - Changyong Li
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Heini Ijäs
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Sofia Ojasalo
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Iris Seitz
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Guido Grundmeier
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
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23
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Hanke M, Hansen N, Chen R, Grundmeier G, Fahmy K, Keller A. Salting-Out of DNA Origami Nanostructures by Ammonium Sulfate. Int J Mol Sci 2022; 23:ijms23052817. [PMID: 35269959 PMCID: PMC8911265 DOI: 10.3390/ijms23052817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 12/16/2022] Open
Abstract
DNA origami technology enables the folding of DNA strands into complex nanoscale shapes whose properties and interactions with molecular species often deviate significantly from that of genomic DNA. Here, we investigate the salting-out of different DNA origami shapes by the kosmotropic salt ammonium sulfate that is routinely employed in protein precipitation. We find that centrifugation in the presence of 3 M ammonium sulfate results in notable precipitation of DNA origami nanostructures but not of double-stranded genomic DNA. The precipitated DNA origami nanostructures can be resuspended in ammonium sulfate-free buffer without apparent formation of aggregates or loss of structural integrity. Even though quasi-1D six-helix bundle DNA origami are slightly less susceptible toward salting-out than more compact DNA origami triangles and 24-helix bundles, precipitation and recovery yields appear to be mostly independent of DNA origami shape and superstructure. Exploiting the specificity of ammonium sulfate salting-out for DNA origami nanostructures, we further apply this method to separate DNA origami triangles from genomic DNA fragments in a complex mixture. Our results thus demonstrate the possibility of concentrating and purifying DNA origami nanostructures by ammonium sulfate-induced salting-out.
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Affiliation(s)
- Marcel Hanke
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany; (M.H.); (N.H.); (R.C.); (G.G.)
| | - Niklas Hansen
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany; (M.H.); (N.H.); (R.C.); (G.G.)
| | - Ruiping Chen
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany; (M.H.); (N.H.); (R.C.); (G.G.)
| | - Guido Grundmeier
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany; (M.H.); (N.H.); (R.C.); (G.G.)
| | - Karim Fahmy
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328 Dresden, Germany;
- Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, 01062 Dresden, Germany
| | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany; (M.H.); (N.H.); (R.C.); (G.G.)
- Correspondence: ; Tel.: +49-5251-605722
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Winterwerber P, Whitfield CJ, Ng DYW, Weil T. Multiple Wavelength Photopolymerization of Stable Poly(Catecholamines)-DNA Origami Nanostructures. Angew Chem Int Ed Engl 2022; 61:e202111226. [PMID: 34813135 PMCID: PMC9303804 DOI: 10.1002/anie.202111226] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Indexed: 11/23/2022]
Abstract
The synthesis of multicomponent polymer hybrids with nanometer precision is chemically challenging in the bottom-up synthesis of complex nanostructures. Here, we leverage the fidelity of the DNA origami technique to install a multiple wavelength responsive photopolymerization system with nanometer resolution. By precisely immobilizing various photosensitizers on the origami template, which are only activated at their respective maximum wavelength, we can control sequential polymerization processes. In particular, the triggered photosensitizers generate reactive oxygen species that in turn initiate the polymerization of the catecholamines dopamine and norepinephrine. We imprint polymeric layers at designated positions on DNA origami, which modifies the polyanionic nature of the DNA objects, thus promoting their uptake into living cells while preserving their integrity. Our herein proposed method provides a rapid platform to access complex 3D nanostructures by customizing material and biological interfaces.
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Affiliation(s)
- Pia Winterwerber
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | | | - David Y. W. Ng
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Tanja Weil
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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25
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Mei L, Chen B, Fan R, Wu M, Weng C, Tong A, Zou B, Yang H, Nie C, Guo G. Magic of Architecting Oligo‐DNAs: 3D Structure‐Dependent Stability and Programmable Specificity to Tumor Cells. ADVANCED FUNCTIONAL MATERIALS 2022. [DOI: 10.1002/adfm.202112544] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lan Mei
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Bo Chen
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Rangrang Fan
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Min Wu
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Chengxin Weng
- Department of Vascular Surgery West China Hospital Sichuan University Chengdu 610041 China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Bingwen Zou
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Hui Yang
- Department of Otorhiolaryngology Head and Neck Surgery West China Hospital Sichuan University Chengdu 610041 China
| | - Chunlai Nie
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Collaborative Innovation Center for Biotherapy Chengdu 610041 China
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26
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Winterwerber P, Whitfield CJ, Ng DYW, Weil T. Multi‐Wellenlängen‐Photopolymerisation von stabilen Poly(katecholamin)‐DNA‐Origami‐Nanostrukturen**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pia Winterwerber
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
| | - Colette J. Whitfield
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
| | - David Y. W. Ng
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
| | - Tanja Weil
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
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27
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Abstract
Invention of DNA origami has transformed the fabrication and application of biological nanomaterials. In this review, we discuss DNA origami nanoassemblies according to their four fundamental mechanical properties in response to external forces: elasticity, pliability, plasticity and stability. While elasticity and pliability refer to reversible changes in structures and associated properties, plasticity shows irreversible variation in topologies. The irreversible property is also inherent in the disintegration of DNA nanoassemblies, which is manifested by its mechanical stability. Disparate DNA origami devices in the past decade have exploited the mechanical regimes of pliability, elasticity, and plasticity, among which plasticity has shown its dominating potential in biomechanical and physiochemical applications. On the other hand, the mechanical stability of the DNA origami has been used to understand the mechanics of the assembly and disassembly of DNA nano-devices. At the end of this review, we discuss the challenges and future development of DNA origami nanoassemblies, again, from these fundamental mechanical perspectives.
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Affiliation(s)
- Jiahao Ji
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH, 44240, USA.
| | - Deepak Karna
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH, 44240, USA.
| | - Hanbin Mao
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH, 44240, USA.
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28
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Liu F, Liu X, Shi Q, Maffeo C, Kojima M, Dong L, Aksimentiev A, Huang Q, Fukuda T, Arai T. A tetrahedral DNA nanorobot with conformational change in response to molecular trigger. NANOSCALE 2021; 13:15552-15559. [PMID: 34596187 DOI: 10.1039/d1nr02757c] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dynamic DNA origami nanostructures that respond to external stimuli are promising platforms for cargo delivery and nanoscale sensing. However, the low stability of such nanostructures under physiological conditions presents a major obstacle for their use in biomedical applications. This article describes a stable tetrahedral DNA nanorobot (TDN) programmed to undergo a controlled conformational change in response to epithelial cell adhesion molecule (EpCAM), a molecular biomarker specifically expressed on the circulating tumor cells. Multiresolution molecular dynamics simulations verified the overall stability of the folded TDN design and characterized local distortions in the folded structure. Atomic force microscopy and gel electrophoresis results showed that tetragonal structures are more stable than unfolded DNA origami sheets. Live cell experiments demonstrated the low cytotoxicity and target specificity of TDN. In summary, the proposed TDN can not only effectively resist nuclease catalysis but also has the potential to monitor EpCAM-positive cells precisely.
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Affiliation(s)
- Fengyu Liu
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Xiaoming Liu
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Qing Shi
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Christopher Maffeo
- Department of Physics, University of Illinois at Urbana Champaign, Urbana IL 61802, USA
| | - Masaru Kojima
- Department of Materials Engineering Science, Osaka University, Osaka 560-8531, Japan
| | - Lixin Dong
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong 999077, China
| | - Aleksei Aksimentiev
- Department of Physics, University of Illinois at Urbana Champaign, Urbana IL 61802, USA
| | - Qiang Huang
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Toshio Fukuda
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Tatsuo Arai
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
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29
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Xin Y, Zargariantabrizi AA, Grundmeier G, Keller A. Magnesium-Free Immobilization of DNA Origami Nanostructures at Mica Surfaces for Atomic Force Microscopy. Molecules 2021; 26:4798. [PMID: 34443385 PMCID: PMC8399889 DOI: 10.3390/molecules26164798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/01/2021] [Accepted: 08/04/2021] [Indexed: 02/06/2023] Open
Abstract
DNA origami nanostructures (DONs) are promising substrates for the single-molecule investigation of biomolecular reactions and dynamics by in situ atomic force microscopy (AFM). For this, they are typically immobilized on mica substrates by adding millimolar concentrations of Mg2+ ions to the sample solution, which enable the adsorption of the negatively charged DONs at the like-charged mica surface. These non-physiological Mg2+ concentrations, however, present a serious limitation in such experiments as they may interfere with the reactions and processes under investigation. Therefore, we here evaluate three approaches to efficiently immobilize DONs at mica surfaces under essentially Mg2+-free conditions. These approaches rely on the pre-adsorption of different multivalent cations, i.e., Ni2+, poly-l-lysine (PLL), and spermidine (Spdn). DON adsorption is studied in phosphate-buffered saline (PBS) and pure water. In general, Ni2+ shows the worst performance with heavily deformed DONs. For 2D DON triangles, adsorption at PLL- and in particular Spdn-modified mica may outperform even Mg2+-mediated adsorption in terms of surface coverage, depending on the employed solution. For 3D six-helix bundles, less pronounced differences between the individual strategies are observed. Our results provide some general guidance for the immobilization of DONs at mica surfaces under Mg2+-free conditions and may aid future in situ AFM studies.
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Affiliation(s)
| | | | | | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany; (Y.X.); (A.A.Z.); (G.G.)
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Rajendran A, Krishnamurthy K, Giridasappa A, Nakata E, Morii T. Stabilization and structural changes of 2D DNA origami by enzymatic ligation. Nucleic Acids Res 2021; 49:7884-7900. [PMID: 34289063 PMCID: PMC8373134 DOI: 10.1093/nar/gkab611] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/16/2021] [Accepted: 07/06/2021] [Indexed: 12/15/2022] Open
Abstract
The low thermal stability of DNA nanostructures is the major drawback in their practical applications. Most of the DNA nanotubes/tiles and the DNA origami structures melt below 60°C due to the presence of discontinuities in the phosphate backbone (i.e., nicks) of the staple strands. In molecular biology, enzymatic ligation is commonly used to seal the nicks in the duplex DNA. However, in DNA nanotechnology, the ligation procedures are neither optimized for the DNA origami nor routinely applied to link the nicks in it. Here, we report a detailed analysis and optimization of the conditions for the enzymatic ligation of the staple strands in four types of 2D square lattice DNA origami. Our results indicated that the ligation takes overnight, efficient at 37°C rather than the usual 16°C or room temperature, and typically requires much higher concentration of T4 DNA ligase. Under the optimized conditions, up to 10 staples ligation with a maximum ligation efficiency of 55% was achieved. Also, the ligation is found to increase the thermal stability of the origami as low as 5°C to as high as 20°C, depending on the structure. Further, our studies indicated that the ligation of the staple strands influences the globular structure/planarity of the DNA origami, and the origami is more compact when the staples are ligated. The globular structure of the native and ligated origami was also found to be altered dynamically and progressively upon ethidium bromide intercalation in a concentration-dependent manner.
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Affiliation(s)
| | | | - Amulya Giridasappa
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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31
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Ojasalo S, Piskunen P, Shen B, Kostiainen MA, Linko V. Hybrid Nanoassemblies from Viruses and DNA Nanostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1413. [PMID: 34071795 PMCID: PMC8228324 DOI: 10.3390/nano11061413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/13/2021] [Accepted: 05/24/2021] [Indexed: 12/12/2022]
Abstract
Viruses are among the most intriguing nanostructures found in nature. Their atomically precise shapes and unique biological properties, especially in protecting and transferring genetic information, have enabled a plethora of biomedical applications. On the other hand, structural DNA nanotechnology has recently emerged as a highly useful tool to create programmable nanoscale structures. They can be extended to user defined devices to exhibit a wide range of static, as well as dynamic functions. In this review, we feature the recent development of virus-DNA hybrid materials. Such structures exhibit the best features of both worlds by combining the biological properties of viruses with the highly controlled assembly properties of DNA. We present how the DNA shapes can act as "structured" genomic material and direct the formation of virus capsid proteins or be encapsulated inside symmetrical capsids. Tobacco mosaic virus-DNA hybrids are discussed as the examples of dynamic systems and directed formation of conjugates. Finally, we highlight virus-mimicking approaches based on lipid- and protein-coated DNA structures that may elicit enhanced stability, immunocompatibility and delivery properties. This development also paves the way for DNA-based vaccines as the programmable nano-objects can be used for controlling immune cell activation.
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Affiliation(s)
- Sofia Ojasalo
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Petteri Piskunen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Boxuan Shen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17165 Stockholm, Sweden
| | - Mauri A. Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
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32
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Kubota R, Tanaka W, Hamachi I. Microscopic Imaging Techniques for Molecular Assemblies: Electron, Atomic Force, and Confocal Microscopies. Chem Rev 2021; 121:14281-14347. [DOI: 10.1021/acs.chemrev.0c01334] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ryou Kubota
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Wataru Tanaka
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- JST-ERATO, Hamachi Innovative Molecular Technology for Neuroscience, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8530, Japan
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Ijäs H, Shen B, Heuer-Jungemann A, Keller A, Kostiainen M, Liedl T, Ihalainen JA, Linko V. Unraveling the interaction between doxorubicin and DNA origami nanostructures for customizable chemotherapeutic drug release. Nucleic Acids Res 2021; 49:3048-3062. [PMID: 33660776 PMCID: PMC8034656 DOI: 10.1093/nar/gkab097] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 01/27/2021] [Accepted: 02/03/2021] [Indexed: 12/11/2022] Open
Abstract
Doxorubicin (DOX) is a common drug in cancer chemotherapy, and its high DNA-binding affinity can be harnessed in preparing DOX-loaded DNA nanostructures for targeted delivery and therapeutics. Although DOX has been widely studied, the existing literature of DOX-loaded DNA-carriers remains limited and incoherent. Here, based on an in-depth spectroscopic analysis, we characterize and optimize the DOX loading into different 2D and 3D scaffolded DNA origami nanostructures (DONs). In our experimental conditions, all DONs show similar DOX binding capacities (one DOX molecule per two to three base pairs), and the binding equilibrium is reached within seconds, remarkably faster than previously acknowledged. To characterize drug release profiles, DON degradation and DOX release from the complexes upon DNase I digestion was studied. For the employed DONs, the relative doses (DOX molecules released per unit time) may vary by two orders of magnitude depending on the DON superstructure. In addition, we identify DOX aggregation mechanisms and spectral changes linked to pH, magnesium, and DOX concentration. These features have been largely ignored in experimenting with DNA nanostructures, but are probably the major sources of the incoherence of the experimental results so far. Therefore, we believe this work can act as a guide to tailoring the release profiles and developing better drug delivery systems based on DNA-carriers.
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Affiliation(s)
- Heini Ijäs
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Boxuan Shen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Amelie Heuer-Jungemann
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
- Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
| | - Tim Liedl
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Janne A Ihalainen
- Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
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Smith DM, Keller A. DNA Nanostructures in the Fight Against Infectious Diseases. ADVANCED NANOBIOMED RESEARCH 2021; 1:2000049. [PMID: 33615315 PMCID: PMC7883073 DOI: 10.1002/anbr.202000049] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/08/2020] [Indexed: 12/12/2022] Open
Abstract
Throughout history, humanity has been threatened by countless epidemic and pandemic outbreaks of infectious diseases, from the Justinianic Plague to the Spanish flu to COVID-19. While numerous antimicrobial and antiviral drugs have been developed over the last 200 years to face these threats, the globalized and highly connected world of the 21st century demands for an ever-increasing efficiency in the detection and treatment of infectious diseases. Consequently, the rapidly evolving field of nanomedicine has taken up the challenge and developed a plethora of strategies to fight infectious diseases with the help of various nanomaterials such as noble metal nanoparticles, liposomes, nanogels, and virus capsids. DNA nanotechnology represents a comparatively recent addition to the nanomedicine arsenal, which, over the past decade, has made great progress in the area of cancer diagnostics and therapy. However, the past few years have seen also an increasing number of DNA nanotechnology-related studies that particularly focus on the detection and inhibition of microbial and viral pathogens. Herein, a brief overview of this rather young research field is provided, successful concepts as well as potential challenges are identified, and promising directions for future research are highlighted.
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Affiliation(s)
- David M. Smith
- DNA Nanodevices UnitDepartment DiagnosticsFraunhofer Institute for Cell Therapy and Immunology IZI04103LeipzigGermany
- Peter Debye Institute for Soft Matter PhysicsFaculty of Physics and Earth SciencesUniversity of Leipzig04103LeipzigGermany
- Institute of Clinical ImmunologyUniversity of Leipzig Medical School04103LeipzigGermany
- Dhirubhai Ambani Institute of Information and Communication TechnologyGandhinagar382 007India
| | - Adrian Keller
- Technical and Macromolecular ChemistryPaderborn UniversityWarburger Str. 10033098PaderbornGermany
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Wang H, Luo D, Wang H, Wang F, Liu X. Construction of Smart Stimuli-Responsive DNA Nanostructures for Biomedical Applications. Chemistry 2021; 27:3929-3943. [PMID: 32830363 DOI: 10.1002/chem.202003145] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/12/2020] [Indexed: 12/13/2022]
Abstract
DNA nanostructures have recently attracted increasing interest in biological and biomedical applications by virtue of their unique properties, such as structural programmability, multi-functionality, stimuli-responsive behaviors, and excellent biocompatibility. In particular, the intelligent responsiveness of smart DNA nanostructures to specific stimuli has facilitated their extensive development in the field of high-performance biosensing and controllable drug delivery. This minireview begins with different self-assembly strategies for the construction of various DNA nanostructures, followed by the introduction of a variety of stimuli-responsive functional DNA nanostructures for assembling metastable soft materials and for facilitating amplified biosensing. The recent achievements of smart DNA nanostructures for controllable drug delivery are highlighted. Finally, the current challenges and possible developments of this promising research are discussed in the fields of intelligent nanomedicine.
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Affiliation(s)
- Huimin Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430000, P. R. China.,College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei, 443002, P. R. China
| | - Dan Luo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430000, P. R. China
| | - Hong Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430000, P. R. China
| | - Fuan Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430000, P. R. China
| | - Xiaoqing Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430000, P. R. China
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37
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Takahashi S, Oshige M, Katsura S. DNA Manipulation and Single-Molecule Imaging. Molecules 2021; 26:1050. [PMID: 33671359 PMCID: PMC7922115 DOI: 10.3390/molecules26041050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 11/22/2022] Open
Abstract
DNA replication, repair, and recombination in the cell play a significant role in the regulation of the inheritance, maintenance, and transfer of genetic information. To elucidate the biomolecular mechanism in the cell, some molecular models of DNA replication, repair, and recombination have been proposed. These biological studies have been conducted using bulk assays, such as gel electrophoresis. Because in bulk assays, several millions of biomolecules are subjected to analysis, the results of the biological analysis only reveal the average behavior of a large number of biomolecules. Therefore, revealing the elementary biological processes of a protein acting on DNA (e.g., the binding of protein to DNA, DNA synthesis, the pause of DNA synthesis, and the release of protein from DNA) is difficult. Single-molecule imaging allows the analysis of the dynamic behaviors of individual biomolecules that are hidden during bulk experiments. Thus, the methods for single-molecule imaging have provided new insights into almost all of the aspects of the elementary processes of DNA replication, repair, and recombination. However, in an aqueous solution, DNA molecules are in a randomly coiled state. Thus, the manipulation of the physical form of the single DNA molecules is important. In this review, we provide an overview of the unique studies on DNA manipulation and single-molecule imaging to analyze the dynamic interaction between DNA and protein.
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Affiliation(s)
- Shunsuke Takahashi
- Division of Life Science and Engineering, School of Science and Engineering, Tokyo Denki University, Hatoyama-cho, Hiki-gun, Saitama 350-0394, Japan;
| | - Masahiko Oshige
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan;
- Gunma University Center for Food Science and Wellness (GUCFW), Maebashi, Gunma 371-8510, Japan
| | - Shinji Katsura
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan;
- Gunma University Center for Food Science and Wellness (GUCFW), Maebashi, Gunma 371-8510, Japan
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38
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Shaukat A, Anaya-Plaza E, Julin S, Linko V, Torres T, de la Escosura A, Kostiainen MA. Phthalocyanine-DNA origami complexes with enhanced stability and optical properties. Chem Commun (Camb) 2021; 56:7341-7344. [PMID: 32483566 DOI: 10.1039/d0cc01916j] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this communication, electrostatically assembled phthalocyanine (Pc)-DNA origami (DO) complexes are formed and their optical properties are demonstrated. The formation of the complex prevents the Pc aggregation, thus yielding an enhanced optical response and photooxidative resilience towards aggregation in biologically relevant media. Simultaneously, the Pc protects the DO against enzymatic digestion. Both features solve previous drawbacks associated with phthalocyanine photosensitizers and DNA nanocarriers. The studied complexes may find use in technologies related to the photogeneration of singlet oxygen, e.g., photocatalysis, diagnositic arrays and photodynamic therapy.
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Affiliation(s)
- Ahmed Shaukat
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076 Aalto, Finland.
| | - Eduardo Anaya-Plaza
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076 Aalto, Finland.
| | - Sofia Julin
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076 Aalto, Finland.
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076 Aalto, Finland. and HYBER Centre, Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland
| | - Tomas Torres
- Department of Organic Chemistry, Universidad Autónoma de Madrid (UAM), Calle Francisco Tomás y Valiente, 7, 28049 Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), 28049 Cantoblanco, Madrid, Spain and IMDEA Nanosience, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Andrés de la Escosura
- Department of Organic Chemistry, Universidad Autónoma de Madrid (UAM), Calle Francisco Tomás y Valiente, 7, 28049 Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), 28049 Cantoblanco, Madrid, Spain
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, FI-00076 Aalto, Finland. and HYBER Centre, Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland
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39
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Platnich CM, Rizzuto FJ, Cosa G, Sleiman HF. Single-molecule methods in structural DNA nanotechnology. Chem Soc Rev 2021; 49:4220-4233. [PMID: 32538403 DOI: 10.1039/c9cs00776h] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Single molecules can now be visualised with unprecedented precision. As the resolution of single-molecule experiments improves, so too does the breadth, quantity and quality of information that can be extracted using these methodologies. In the field of DNA nanotechnology, we use programmable interactions between nucleic acids to generate complex, multidimensional structures. We can use single-molecule techniques - ranging from electron and fluorescence microscopies to electrical and force spectroscopies - to report on the structure, morphology, robustness, sample heterogeneity and other properties of these DNA nanoconstructs. In this Tutorial Review, we will detail how complementarity between static and dynamic single-molecule techniques can provide a unified image of DNA nanoarchitectures. The single-molecule methods that we discuss provide unprecedented insight into chemical and structural behaviour, yielding not just an average outcome but reporting on the distribution of values, ultimately showing how bulk properties arise from the collective behaviour of individual structures. As the fields of both DNA nanotechnology and single-molecule characterisation intertwine, a feedback loop is generated between disciplines, providing new opportunities for the development and operation of DNA-based materials as sensors, delivery vehicles, machinery and structural scaffolds.
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Affiliation(s)
- Casey M Platnich
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec H3A 0B8, Canada.
| | - Felix J Rizzuto
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec H3A 0B8, Canada.
| | - Gonzalo Cosa
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec H3A 0B8, Canada.
| | - Hanadi F Sleiman
- Department of Chemistry, McGill University, 801 Sherbrooke St. W, Montreal, Quebec H3A 0B8, Canada.
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40
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41
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Julin S, Nonappa, Shen B, Linko V, Kostiainen MA. DNA‐Origami‐Templated Growth of Multilamellar Lipid Assemblies. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202006044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sofia Julin
- Biohybrid Materials Department of Bioproducts and Biosystems Aalto University P. O. Box 16100 00076 Aalto Finland
| | - Nonappa
- HYBER Centre Department of Applied Physics Aalto University P. O. Box 15100 00076 Aalto Finland
- Faculty of Engineering and Natural Sciences Tampere University P. O. Box 541 33101 Tampere Finland
| | - Boxuan Shen
- Biohybrid Materials Department of Bioproducts and Biosystems Aalto University P. O. Box 16100 00076 Aalto Finland
| | - Veikko Linko
- Biohybrid Materials Department of Bioproducts and Biosystems Aalto University P. O. Box 16100 00076 Aalto Finland
- HYBER Centre Department of Applied Physics Aalto University P. O. Box 15100 00076 Aalto Finland
| | - Mauri A. Kostiainen
- Biohybrid Materials Department of Bioproducts and Biosystems Aalto University P. O. Box 16100 00076 Aalto Finland
- HYBER Centre Department of Applied Physics Aalto University P. O. Box 15100 00076 Aalto Finland
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Abstract
DNA nanotechnology has progressed from proof-of-concept demonstrations of structural design towards application-oriented research. As a natural material with excellent self-assembling properties, DNA is an indomitable choice for various biological applications, including biosensing, cell modulation, bioimaging and drug delivery. However, a major impediment to the use of DNA nanostructures in biological applications is their susceptibility to attack by nucleases present in the physiological environment. Although several DNA nanostructures show enhanced resistance to nuclease attack compared with duplexes and plasmid DNA, this may be inadequate for practical application. Recently, several strategies have been developed to increase the nuclease resistance of DNA nanostructures while retaining their functions, and the stability of various DNA nanostructures has been studied in biological fluids, such as serum, urine and cell lysates. This Review discusses the approaches used to modulate nuclease resistance in DNA nanostructures and provides an overview of the techniques employed to evaluate resistance to degradation and quantify stability.
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Affiliation(s)
- Arun Richard Chandrasekaran
- grid.265850.c0000 0001 2151 7947The RNA Institute, University at Albany, State University of New York, Albany, NY USA
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43
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Xin Y, Grundmeier G, Keller A. Adsorption of SARS-CoV-2 Spike Protein S1 at Oxide Surfaces Studied by High-Speed Atomic Force Microscopy. ADVANCED NANOBIOMED RESEARCH 2020; 1:2000024. [PMID: 33615316 PMCID: PMC7883093 DOI: 10.1002/anbr.202000024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/05/2020] [Indexed: 12/22/2022] Open
Abstract
The ongoing coronavirus disease 2019 (COVID‐19) pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) represents a serious threat to the health of millions of people. Respiratory viruses such as SARS‐CoV‐2 can be transmitted via airborne and fomite routes. The latter requires virion adsorption at abiotic surfaces and most likely involves the SARS‐CoV‐2 spike protein subunit 1 (S1), which is the outermost point of its envelope. Understanding S1 spike protein interaction with fomite surfaces thus represents an important milestone on the road to fighting the spread of COVID‐19. Herein, high‐speed atomic force microscopy (HS‐AFM) is used to monitor the adsorption of the SARS‐CoV‐2 spike protein S1 at Al2O3(0001) and TiO2(100) surfaces in situ. While the single‐crystalline oxide substrates are chosen to model the native surface oxides of Al‐ and Ti‐based fomites, adsorption is studied in electrolytes that mimic the pH and major ionic components of mucosal secretions and saliva, respectively. Quantitative analysis of the obtained HS‐AFM images indicates that S1 spike protein adsorption at these surfaces is mostly governed by electrostatic interactions with possible contributions from van der Waals interactions. It thus proceeds more rapidly at the TiO2(100) than at the Al2O3(0001) surface.
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Affiliation(s)
- Yang Xin
- Technical and Macromolecular Chemistry Paderborn University Warburger Str. 100 Paderborn 33098 Germany
| | - Guido Grundmeier
- Technical and Macromolecular Chemistry Paderborn University Warburger Str. 100 Paderborn 33098 Germany
| | - Adrian Keller
- Technical and Macromolecular Chemistry Paderborn University Warburger Str. 100 Paderborn 33098 Germany
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Julin S, Nonappa, Shen B, Linko V, Kostiainen MA. DNA-Origami-Templated Growth of Multilamellar Lipid Assemblies. Angew Chem Int Ed Engl 2020; 60:827-833. [PMID: 33022870 DOI: 10.1002/anie.202006044] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/22/2020] [Indexed: 12/14/2022]
Abstract
Lipids are important building blocks in cellular compartments, and therefore their self-assembly into well-defined hierarchical structures has gained increasing interest. Cationic lipids and unstructured DNA can co-assemble into highly ordered structures (lipoplexes), but potential applications of lipoplexes are still limited. Using scaffolded DNA origami nanostructures could aid in resolving these drawbacks. Here, we have complexed DNA origami together with a cationic lipid 1,2-dioleoly-3-trimethylammonium-propane (DOTAP) and studied their self-assembly driven by electrostatic and hydrophobic interactions. The results suggest that the DNA origami function as templates for the growth of multilamellar lipid structures and that the DNA origami are embedded in the formed lipid matrix. Furthermore, the lipid encapsulation was found to significantly shield the DNA origami against nuclease digestion. The presented complexation strategy is suitable for a wide range of DNA-based templates and could therefore find uses in construction of cell-membrane-associated components.
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Affiliation(s)
- Sofia Julin
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P. O. Box 16100, 00076, Aalto, Finland
| | - Nonappa
- HYBER Centre, Department of Applied Physics, Aalto University, P. O. Box 15100, 00076, Aalto, Finland.,Faculty of Engineering and Natural Sciences, Tampere University, P. O. Box 541, 33101, Tampere, Finland
| | - Boxuan Shen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P. O. Box 16100, 00076, Aalto, Finland
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P. O. Box 16100, 00076, Aalto, Finland.,HYBER Centre, Department of Applied Physics, Aalto University, P. O. Box 15100, 00076, Aalto, Finland
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P. O. Box 16100, 00076, Aalto, Finland.,HYBER Centre, Department of Applied Physics, Aalto University, P. O. Box 15100, 00076, Aalto, Finland
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45
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Effect of DNA Origami Nanostructures on hIAPP Aggregation. NANOMATERIALS 2020; 10:nano10112200. [PMID: 33158138 PMCID: PMC7694230 DOI: 10.3390/nano10112200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/17/2022]
Abstract
The aggregation of human islet amyloid polypeptide (hIAPP) plays a major role in the pathogenesis of type 2 diabetes mellitus (T2DM), and numerous strategies for controlling hIAPP aggregation have been investigated so far. In particular, several organic and inorganic nanoparticles (NPs) have shown the potential to influence the aggregation of hIAPP and other amyloidogenic proteins and peptides. In addition to conventional NPs, DNA nanostructures are receiving more and more attention from the biomedical field. Therefore, in this work, we investigated the effects of two different DNA origami nanostructures on hIAPP aggregation. To this end, we employed in situ turbidity measurements and ex situ atomic force microscopy (AFM). The turbidity measurements revealed a retarding effect of the DNA nanostructures on hIAPP aggregation, while the AFM results showed the co-aggregation of hIAPP with the DNA origami nanostructures into hybrid peptide–DNA aggregates. We assume that this was caused by strong electrostatic interactions between the negatively charged DNA origami nanostructures and the positively charged peptide. Most intriguingly, the influence of the DNA origami nanostructures on hIAPP aggregation differed from that of genomic double-stranded DNA (dsDNA) and appeared to depend on DNA origami superstructure. DNA origami nanostructures may thus represent a novel route for modulating amyloid aggregation in vivo.
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46
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Heck C, Torchinsky D, Nifker G, Gularek F, Michaeli Y, Weinhold E, Ebenstein Y. Label as you fold: methyltransferase-assisted functionalization of DNA nanostructures. NANOSCALE 2020; 12:20287-20291. [PMID: 33001091 DOI: 10.1039/d0nr03694c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Non-DNA labels are key components for the construction of functional DNA nanostructures. Here, we present a method to graft covalent labels onto DNA origami nanostructures in an enzymatic one-pot reaction. The DNA methyltransferase M.TaqI labels the DNA nanostructures with azide groups, which serve as universal attachment points via click chemistry. Direct labeling with fluorescent dyes is also demonstrated. The procedure yields structures with high fluorescence intensities and narrow intensity distributions. In combination with UV crosslinking it enables the creation of temperature-stable, intense fluorescent beacons.
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Affiliation(s)
- Christian Heck
- School of Chemistry/Center for Nanoscience and Nanotechnology/Center for Light-Matter Interaction, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
| | - Dmitry Torchinsky
- School of Chemistry/Center for Nanoscience and Nanotechnology/Center for Light-Matter Interaction, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
| | - Gil Nifker
- School of Chemistry/Center for Nanoscience and Nanotechnology/Center for Light-Matter Interaction, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
| | - Felix Gularek
- Institute of Organic Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
| | - Yael Michaeli
- School of Chemistry/Center for Nanoscience and Nanotechnology/Center for Light-Matter Interaction, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
| | - Elmar Weinhold
- Institute of Organic Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
| | - Yuval Ebenstein
- School of Chemistry/Center for Nanoscience and Nanotechnology/Center for Light-Matter Interaction, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
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47
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Suma A, Stopar A, Nicholson AW, Castronovo M, Carnevale V. Global and local mechanical properties control endonuclease reactivity of a DNA origami nanostructure. Nucleic Acids Res 2020; 48:4672-4680. [PMID: 32043111 PMCID: PMC7229852 DOI: 10.1093/nar/gkaa080] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/24/2020] [Accepted: 01/29/2020] [Indexed: 01/17/2023] Open
Abstract
We used coarse-grained molecular dynamics simulations to characterize the global and local mechanical properties of a DNA origami triangle nanostructure. The structure presents two metastable conformations separated by a free energy barrier that is lowered upon omission of four specific DNA staples (defect). In contrast, only one stable conformation is present upon removing eight staples. The metastability is explained in terms of the intrinsic conformations of the three trapezoidal substructures. We computationally modeled the local accessibility to endonucleases, to predict the reactivity of twenty sites, and found good agreement with the experimental data. We showed that global fluctuations affect local reactivity: the removal of the DNA staples increased the computed accessibility to a restriction enzyme, at sites as distant as 40 nm, due to an increase in global fluctuation. These results raise the intriguing possibility of the rational engineering of allosterically modulated DNA origami.
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Affiliation(s)
- Antonio Suma
- Institute for Computational Molecular Science, Temple University, Philadelphia, PA 19122, USA.,Department of Biology, Temple University, Philadelphia, PA 19122, USA.,Department of Chemical Science and Technologies, University of Rome, Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Alex Stopar
- Department of Biology, Temple University, Philadelphia, PA 19122, USA.,Department of Chemical Science and Technologies, University of Rome, Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Allen W Nicholson
- Department of Biology, Temple University, Philadelphia, PA 19122, USA
| | - Matteo Castronovo
- Department of Biology, Temple University, Philadelphia, PA 19122, USA.,Department of Chemical Science and Technologies, University of Rome, Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy.,School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Vincenzo Carnevale
- Institute for Computational Molecular Science, Temple University, Philadelphia, PA 19122, USA.,Department of Biology, Temple University, Philadelphia, PA 19122, USA
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48
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Keller A, Linko V. Challenges and Perspectives of DNA Nanostructures in Biomedicine. Angew Chem Int Ed Engl 2020; 59:15818-15833. [PMID: 32112664 PMCID: PMC7540699 DOI: 10.1002/anie.201916390] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/26/2020] [Indexed: 01/12/2023]
Abstract
DNA nanotechnology holds substantial promise for future biomedical engineering and the development of novel therapies and diagnostic assays. The subnanometer-level addressability of DNA nanostructures allows for their precise and tailored modification with numerous chemical and biological entities, which makes them fit to serve as accurate diagnostic tools and multifunctional carriers for targeted drug delivery. The absolute control over shape, size, and function enables the fabrication of tailored and dynamic devices, such as DNA nanorobots that can execute programmed tasks and react to various external stimuli. Even though several studies have demonstrated the successful operation of various biomedical DNA nanostructures both in vitro and in vivo, major obstacles remain on the path to real-world applications of DNA-based nanomedicine. Here, we summarize the current status of the field and the main implementations of biomedical DNA nanostructures. In particular, we focus on open challenges and untackled issues and discuss possible solutions.
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Affiliation(s)
- Adrian Keller
- Technical and Macromolecular ChemistryPaderborn UniversityWarburger Strasse 10033098PaderbornGermany
| | - Veikko Linko
- Biohybrid MaterialsDepartment of Bioproducts and BiosystemsAalto UniversityP. O. Box 1610000076AaltoFinland
- HYBER CentreDepartment of Applied PhysicsAalto UniversityP. O. Box 1510000076AaltoFinland
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Abstract
Over the past decade, DNA nanotechnology has spawned a broad variety of functional nanostructures tailored toward the enabled state at which applications are coming increasingly in view. One of the branches of these applications is in synthetic biology, where the intrinsic programmability of the DNA nanostructures may pave the way for smart task-specific molecular robotics. In brief, the synthesis of the user-defined artificial DNA nano-objects is based on employing DNA molecules with custom lengths and sequences as building materials that predictably assemble together by obeying Watson-Crick base pairing rules. The general workflow of creating DNA nanoshapes is getting more and more straightforward, and some objects can be designed automatically from the top down. The versatile DNA nano-objects can serve as synthetic tools at the interface with biology, for example, in therapeutics and diagnostics as dynamic logic-gated nanopills, light-, pH-, and thermally driven devices. Such diverse apparatuses can also serve as optical polarizers, sensors and capsules, autonomous cargo-sorting robots, rotary machines, precision measurement tools, as well as electric and magnetic-field directed robotic arms. In this review, we summarize the recent progress in robotic DNA nanostructures, mechanics, and their various implementations.
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Affiliation(s)
- Sami Nummelin
- Biohybrid
Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
| | - Boxuan Shen
- Biohybrid
Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
| | - Petteri Piskunen
- Biohybrid
Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
| | - Qing Liu
- Biohybrid
Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
- HYBER
Centre, Department of Applied Physics, Aalto
University, 00076 Aalto, Finland
| | - Mauri A. Kostiainen
- Biohybrid
Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
- HYBER
Centre, Department of Applied Physics, Aalto
University, 00076 Aalto, Finland
| | - Veikko Linko
- Biohybrid
Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
- HYBER
Centre, Department of Applied Physics, Aalto
University, 00076 Aalto, Finland
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50
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Kielar C, Zhu S, Grundmeier G, Keller A. Quantitative Assessment of Tip Effects in Single-Molecule High-Speed Atomic Force Microscopy Using DNA Origami Substrates. Angew Chem Int Ed Engl 2020; 59:14336-14341. [PMID: 32485088 PMCID: PMC7496922 DOI: 10.1002/anie.202005884] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/22/2020] [Indexed: 01/19/2023]
Abstract
High-speed atomic force microscopy (HS-AFM) is widely employed in the investigation of dynamic biomolecular processes at a single-molecule level. However, it remains an open and somewhat controversial question, how these processes are affected by the rapidly scanned AFM tip. While tip effects are commonly believed to be of minor importance in strongly binding systems, weaker interactions may significantly be disturbed. Herein, we quantitatively assess the role of tip effects in a strongly binding system using a DNA origami-based single-molecule assay. Despite its femtomolar dissociation constant, we find that HS-AFM imaging can disrupt monodentate binding of streptavidin (SAv) to biotin (Bt) even under gentle scanning conditions. To a lesser extent, this is also observed for the much stronger bidentate SAv-Bt complex. The presented DNA origami-based assay can be universally employed to quantify tip effects in strongly and weakly binding systems and to optimize the experimental settings for their reliable HS-AFM imaging.
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Affiliation(s)
- Charlotte Kielar
- Technical and Macromolecular ChemistryPaderborn UniversityWarburger Str. 10033098PaderbornGermany
- Present address: Institute of Resource EcologyHelmholtz-Zentrum Dresden-RossendorfBautzner Landstraße 40001328DresdenGermany
| | - Siqi Zhu
- Technical and Macromolecular ChemistryPaderborn UniversityWarburger Str. 10033098PaderbornGermany
| | - Guido Grundmeier
- Technical and Macromolecular ChemistryPaderborn UniversityWarburger Str. 10033098PaderbornGermany
| | - Adrian Keller
- Technical and Macromolecular ChemistryPaderborn UniversityWarburger Str. 10033098PaderbornGermany
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