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Title: DNA origami protection and molecular interfacing through engineered sequence-defined peptoids

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America

DNA nanotechnology has established approaches for designing programmable and precisely controlled nanoscale architectures through specific Watson−Crick base-pairing, molecular plasticity, and intermolecular connectivity. In particular, superior control over DNA origami structures could be beneficial for biomedical applications, including biosensing, in vivo imaging, and drug and gene delivery. However, protecting DNA origami structures in complex biological fluids while preserving their structural characteristics remains a major challenge for enabling these applications. Here, we developed a class of structurally well-defined peptoids to protect DNA origamis in ionic and bioactive conditions and systematically explored the effects of peptoid architecture and sequence dependency on DNA origami stability. The applicability of this approach for drug delivery, bioimaging, and cell targeting was also demonstrated. A series of peptoids (PE1–9) with two types of architectures, termed as “brush” and “block,” were built from positively charged monomers and neutral oligo-ethyleneoxy monomers, where certain designs were found to greatly enhance the stability of DNA origami. Through experimental and molecular dynamics studies, we demonstrated the role of sequence-dependent electrostatic interactions of peptoids with the DNA backbone. We showed that octahedral DNA origamis coated with peptoid (PE2) can be used as carriers for anticancer drug and protein, where the peptoid modulated the rate of drug release and prolonged protein stability against proteolytic hydrolysis. Finally, we synthesized two alkyne-modified peptoids (PE8 and PE9), conjugated with fluorophore and antibody, to make stable DNA origamis with imaging and cell-targeting capabilities. Our results demonstrate an approach toward functional and physiologically stable DNA origami for biomedical applications.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; AC02-05CH11231; SC0008772; KP1605010
OSTI ID:
1604260
Alternate ID(s):
OSTI ID: 1607714
Report Number(s):
BNL-213757-2020-JAAM
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 117 Journal Issue: 12; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 77 works
Citation information provided by
Web of Science

References (67)

[25] Synthesis of N-substituted glycine peptoid libraries book January 1996
Virus-Encapsulated DNA Origami Nanostructures for Cellular Delivery journal March 2014
Addressing the Instability of DNA Nanostructures in Tissue Culture journal August 2014
Native Bovine Pancreatic Trypsin text January 2005
Structure and Dynamics of Condensed DNA Probed by 1,1‘-(4,4,8,8-Tetramethyl-4,8-diazaundecamethylene)bis[4-[[3- methylbenz-1,3-oxazol-2-yl]methylidine]-1,4-dihydroquinolinium] Tetraiodide Fluorescence journal December 2002
Designer DNA Nanoarchitectures journal March 2009
Proteolytic studies of homologous peptide and N-substituted glycine peptoid oligomers journal November 1994
Programmable and Multifunctional DNA-Based Materials for Biomedical Applications journal February 2018
Peptoidic Amino- and Guanidinium-Carrier Systems: Targeted Drug Delivery into the Cell Cytosol or the Nucleus journal February 2008
DNA Origami as a Carrier for Circumvention of Drug Resistance journal August 2012
BioXTAS RAW : improvements to a free open-source program for small-angle X-ray scattering data reduction and analysis journal September 2017
Sequence-Specific Molecular Lithography on Single DNA Molecules journal July 2002
A general strategy for the DNA-mediated self-assembly of functional nanoparticles into heterogeneous systems journal October 2013
One-Step Formation of “Chain-Armor”-Stabilized DNA Nanostructures journal May 2015
DNA-guided crystallization of colloidal nanoparticles journal January 2008
Cellular Immunostimulation by CpG-Sequence-Coated DNA Origami Structures journal November 2011
Hydration Regulates Thermodynamics of G-Quadruplex Formation under Molecular Crowding Conditions journal June 2006
Simulated Annealing of Chemical Potential:  A General Procedure for Locating Bound Waters. Application to the Study of the Differential Hydration Propensities of the Major and Minor Grooves of DNA journal January 1996
Folding DNA to create nanoscale shapes and patterns journal March 2006
Smart Drug Delivery Nanocarriers with Self-Assembled DNA Nanostructures journal June 2013
Platinated DNA as Precursors to Templated Chains of Metal Nanoparticles journal December 2001
A Logic-Gated Nanorobot for Targeted Transport of Molecular Payloads journal February 2012
Intramolecular fluorescence self-quenching of fluoresceinamine journal March 1990
Effects of Hydration, Ion Release, and Excluded Volume on the Melting of Triplex and Duplex DNA journal January 1999
Organization of 'nanocrystal molecules' using DNA journal August 1996
The design, synthesis, and evaluation of molecules that enable or enhance cellular uptake: Peptoid molecular transporters journal November 2000
Oligolysine-based coating protects DNA nanostructures from low-salt denaturation and nuclease degradation journal May 2017
Prescribed nanoparticle cluster architectures and low-dimensional arrays built using octahedral DNA origami frames journal May 2015
Block Copolymer Micellization as a Protection Strategy for DNA Origami journal March 2017
DNA rendering of polyhedral meshes at the nanoscale journal July 2015
Control of enzyme reactions by a reconfigurable DNA nanovault journal October 2017
DNase I-induced DNA conformation journal December 1991
DNA in a material world journal January 2003
Universal computing by DNA origami robots in a living animal journal April 2014
A DNA-based method for rationally assembling nanoparticles into macroscopic materials journal August 1996
DNA Nanocages journal August 2016
Investigations on DNA intercalation and surface binding by SYBR Green I, its structure determination and methodological implications journal July 2004
Recent Advances in the Synthesis of Peptoid Macrocycles journal February 2018
Optimized DNA “Nanosuitcases” for Encapsulation and Conditional Release of siRNA journal October 2016
Effects of Design Choices on the Stiffness of Wireframe DNA Origami Structures journal August 2018
Atomic-level engineering and imaging of polypeptoid crystal lattices journal October 2019
Peptoid Polymers: A Highly Designable Bioinspired Material journal May 2013
DNA Origami as an In Vivo Drug Delivery Vehicle for Cancer Therapy journal June 2014
Designer nanoscale DNA assemblies programmed from the top down journal May 2016
Challenges and opportunities for structural DNA nanotechnology journal November 2011
Highly sensitive fluorescent detection of trypsin based on BSA-stabilized gold nanoclusters journal February 2012
Covalent DNA-Streptavidin Conjugates as Building Blocks for Novel Biometallic Nanostructures journal September 1998
Protein Coating of DNA Nanostructures for Enhanced Stability and Immunocompatibility journal July 2017
New Peptidomimetic Polymers for Antifouling Surfaces journal June 2005
Precisely Tailored DNA Nanostructures and their Theranostic Applications journal June 2017
Lattice engineering through nanoparticle–DNA frameworks journal February 2016
Nucleases: diversity of structure, function and mechanism journal September 2010
Cationic polymers for DNA origami coating – examining their binding efficiency and tuning the enzymatic reaction rates journal January 2016
A combinatorial approach to the discovery of efficient cationic peptoid reagents for gene delivery journal February 1998
Cellular delivery of enzyme-loaded DNA origami journal January 2016
Arginine-Rich Molecular Transporters for Drug Delivery:  Role of Backbone Spacing in Cellular Uptake journal August 2002
Spatially-Interactive Biomolecular Networks Organized by Nucleic Acid Nanostructures journal May 2012
Synthesis and Characterization of Well-Defined PEGylated Polypeptoids as Protein-Resistant Polymers journal February 2017
SYBR Green I: Fluorescence Properties and Interaction with DNA journal April 2012
Precision glycocalyx editing as a strategy for cancer immunotherapy journal August 2016
DNA Surface Technology: From Gene Sensors to Integrated Systems for Life and Materials Sciences journal December 2018
Stability of DNA Origami Nanostructure under Diverse Chemical Environments journal September 2014
On the Stability of DNA Origami Nanostructures in Low-Magnesium Buffers journal June 2018
Cocoon-Like Self-Degradable DNA Nanoclew for Anticancer Drug Delivery journal October 2014
Sequence-programmable covalent bonding of designed DNA assemblies journal August 2018
Self-assembly of DNA into nanoscale three-dimensional shapes journal May 2009
Control of stability and structure of nucleic acids using cosolutes journal May 2014

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