Superstructure-Dependent Loading of DNA Origami Nanostructures with a Groove-Binding Drug

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Superstructure-Dependent Loading of DNA Origami Nanostructures with a Groove-Binding Drug. / Kollmann, Fabian; Ramakrishnan, Saminathan; Shen, Boxuan; Grundmeier, Guido; Kostiainen, Mauri A.; Linko, Veikko; Keller, Adrian.

In: ACS Omega, Vol. 3, No. 8, 31.08.2018, p. 9441-9448.

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Kollmann, Fabian ; Ramakrishnan, Saminathan ; Shen, Boxuan ; Grundmeier, Guido ; Kostiainen, Mauri A. ; Linko, Veikko ; Keller, Adrian. / Superstructure-Dependent Loading of DNA Origami Nanostructures with a Groove-Binding Drug. In: ACS Omega. 2018 ; Vol. 3, No. 8. pp. 9441-9448.

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@article{98bd6c09f86e4d80bee7b73709b72be1,
title = "Superstructure-Dependent Loading of DNA Origami Nanostructures with a Groove-Binding Drug",
abstract = "DNA origami nanostructures are regarded as powerful and versatile vehicles for targeted drug delivery. So far, DNA origami-based drug delivery strategies mostly use intercalation of the therapeutic molecules between the base pairs of the DNA origami's double helices for drug loading. The binding of nonintercalating drugs to DNA origami nanostructures, however, is less studied. Therefore, in this work, we investigate the interaction of the drug methylene blue (MB) with different DNA origami nanostructures under conditions that result in minor groove binding. We observe a noticeable effect of DNA origami superstructure on the binding affinity of MB. In particular, non-B topologies as for instance found in designs using the square lattice with 10.67 bp/turn may result in reduced binding affinity because groove binding efficiency depends on groove dimensions. Also, mechanically flexible DNA origami shapes that are prone to structural fluctuations may exhibit reduced groove binding, even though they are based on the honeycomb lattice with 10.5 bp/turn. This can be attributed to the induction of transient over- and underwound DNA topologies by thermal fluctuations. These issues should thus be considered when designing DNA origami nanostructures for drug delivery applications that employ groove-binding drugs.",
author = "Fabian Kollmann and Saminathan Ramakrishnan and Boxuan Shen and Guido Grundmeier and Kostiainen, {Mauri A.} and Veikko Linko and Adrian Keller",
year = "2018",
month = "8",
day = "31",
doi = "10.1021/acsomega.8b00934",
language = "English",
volume = "3",
pages = "9441--9448",
journal = "ACS Omega",
issn = "2470-1343",
publisher = "AMERICAN CHEMICAL SOCIETY",
number = "8",

}

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TY - JOUR

T1 - Superstructure-Dependent Loading of DNA Origami Nanostructures with a Groove-Binding Drug

AU - Kollmann, Fabian

AU - Ramakrishnan, Saminathan

AU - Shen, Boxuan

AU - Grundmeier, Guido

AU - Kostiainen, Mauri A.

AU - Linko, Veikko

AU - Keller, Adrian

PY - 2018/8/31

Y1 - 2018/8/31

N2 - DNA origami nanostructures are regarded as powerful and versatile vehicles for targeted drug delivery. So far, DNA origami-based drug delivery strategies mostly use intercalation of the therapeutic molecules between the base pairs of the DNA origami's double helices for drug loading. The binding of nonintercalating drugs to DNA origami nanostructures, however, is less studied. Therefore, in this work, we investigate the interaction of the drug methylene blue (MB) with different DNA origami nanostructures under conditions that result in minor groove binding. We observe a noticeable effect of DNA origami superstructure on the binding affinity of MB. In particular, non-B topologies as for instance found in designs using the square lattice with 10.67 bp/turn may result in reduced binding affinity because groove binding efficiency depends on groove dimensions. Also, mechanically flexible DNA origami shapes that are prone to structural fluctuations may exhibit reduced groove binding, even though they are based on the honeycomb lattice with 10.5 bp/turn. This can be attributed to the induction of transient over- and underwound DNA topologies by thermal fluctuations. These issues should thus be considered when designing DNA origami nanostructures for drug delivery applications that employ groove-binding drugs.

AB - DNA origami nanostructures are regarded as powerful and versatile vehicles for targeted drug delivery. So far, DNA origami-based drug delivery strategies mostly use intercalation of the therapeutic molecules between the base pairs of the DNA origami's double helices for drug loading. The binding of nonintercalating drugs to DNA origami nanostructures, however, is less studied. Therefore, in this work, we investigate the interaction of the drug methylene blue (MB) with different DNA origami nanostructures under conditions that result in minor groove binding. We observe a noticeable effect of DNA origami superstructure on the binding affinity of MB. In particular, non-B topologies as for instance found in designs using the square lattice with 10.67 bp/turn may result in reduced binding affinity because groove binding efficiency depends on groove dimensions. Also, mechanically flexible DNA origami shapes that are prone to structural fluctuations may exhibit reduced groove binding, even though they are based on the honeycomb lattice with 10.5 bp/turn. This can be attributed to the induction of transient over- and underwound DNA topologies by thermal fluctuations. These issues should thus be considered when designing DNA origami nanostructures for drug delivery applications that employ groove-binding drugs.

UR - http://www.scopus.com/inward/record.url?scp=85051986975&partnerID=8YFLogxK

U2 - 10.1021/acsomega.8b00934

DO - 10.1021/acsomega.8b00934

M3 - Article

VL - 3

SP - 9441

EP - 9448

JO - ACS Omega

JF - ACS Omega

SN - 2470-1343

IS - 8

ER -

ID: 27810774