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Lee JY, Kim Y, Kim DN. Predicting the effect of binding molecules on the shape and mechanical properties of structured DNA assemblies. Nat Commun 2024; 15:6446. [PMID: 39085236 PMCID: PMC11291742 DOI: 10.1038/s41467-024-50871-3] [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: 01/19/2024] [Accepted: 07/24/2024] [Indexed: 08/02/2024] Open
Abstract
Chemo-mechanical deformation of structured DNA assemblies driven by DNA-binding ligands has offered promising avenues for biological and therapeutic applications. However, it remains elusive how to effectively model and predict their effects on the deformation and mechanical properties of DNA structures. Here, we present a computational framework for simulating chemo-mechanical change of structured DNA assemblies. We particularly quantify the effects of ethidium bromide (EtBr) intercalation on the geometry and mechanical properties of DNA base-pairs through molecular dynamics simulations and integrated them into finite-element-based structural analysis to predict the shape and properties of DNA objects. The proposed model captures various structural changes induced by EtBr-binding such as shape variation, flexibility modulation, and supercoiling instability. It enables a rational design of structured DNA assemblies with tunable shapes and mechanical properties by binding molecules.
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Affiliation(s)
- Jae Young Lee
- Institute of Advanced Machines and Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Korea
| | - Yanggyun Kim
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Korea
| | - Do-Nyun Kim
- Institute of Advanced Machines and Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Korea.
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Korea.
- Soft Foundry Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Korea.
- Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Korea.
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Xie C, Chen K, Chen Z, Hu Y, Pan L. A Chemo-Mechanically Coupled DNA Origami Clamp Capable of Generating Robust Compression Forces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401396. [PMID: 38973093 DOI: 10.1002/smll.202401396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/10/2024] [Indexed: 07/09/2024]
Abstract
DNA nanostructures have been utilized to study biological mechanical processes and construct artificial nanosystems. Many application scenarios necessitate nanodevices able to robustly generate large single molecular forces. However, most existing dynamic DNA nanostructures are triggered by probabilistic hybridization reactions between spatially separated DNA strands, which only non-deterministically generate relatively small compression forces (≈0.4 piconewtons (pN)). Here, an intercalator-triggered dynamic DNA origami nanostructure is developed, where large amounts of local binding reactions between intercalators and the nanostructure collectively lead to the robust generation of relatively large compression forces (≈11.2 pN). Biomolecular loads with different stiffnesses, 3, 4, and 6-helix DNA bundles are efficiently bent by the compression forces. This work provides a robust and powerful force-generation tool for building highly chemo-mechanically coupled molecular machines in synthetic nanosystems.
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Affiliation(s)
- Chun Xie
- School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Kuiting Chen
- School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Zhekun Chen
- School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Yingxin Hu
- College of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang, Hebei, 050043, China
| | - Linqiang Pan
- School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
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Sun W, Yin J, Liu L, Wu Z, Wang Y, Liu T, Xiong H, Liu X, Wang X, Jiang H. Endogenous miRNA and K + Co-Activated Dynamic Assembly of DNA Coacervates for Intracellular miRNA Imaging and Mitochondrial Intervention. Anal Chem 2023; 95:14101-14110. [PMID: 37674256 DOI: 10.1021/acs.analchem.3c03053] [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: 09/08/2023]
Abstract
Intracellular dynamic assembly of DNA structures may be beneficial for the development of multifunctional nanoplatforms for the regulation of cell behaviors, providing new strategies for disease diagnosis and intervention. Herein, we propose the dynamic assembly of DNA coacervates in living cells triggered by miRNA-21 and K+, which can be used for both miRNA imaging and mitochondrial intervention. The rationale is that miRNA-21 can trigger the hybridization chain reaction to generate G-quadruplex precursors, and K+ can mediate the assembly of G-quadruplex-based coacervates, allowing the colorimetric detection of miRNA-21 ranging from 10 pM to 10 μM. Moreover, the as-formed DNA coacervates can specifically target mitochondria in MCF-7 breast cancer cells using the MCF-7 cell membrane as delivery carriers, which further act as an anionic shielding to inhibit communication between mitochondria and environments, with a significant inhibitory effect on ATP production and cellular migration behaviors. This work provides an ideal multifunctional nanoplatform for rationally interfering with cellular metabolism and migration behaviors through the dynamic assembly of DNA coacervates mediated by endogenous molecules, which has a large number of potential applications in the biomedical field, especially theranostics for cancer metastasis.
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Affiliation(s)
- Wenyu Sun
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Jiajia Yin
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Liu Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Zhicheng Wu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Yihan Wang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Tengfei Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Hongjie Xiong
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Xiaohui Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Xuemei Wang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Hui Jiang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
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Dai L, Hu X, Ji M, Ma N, Xing H, Zhu JJ, Min Q, Tian Y. Programming the morphology of DNA origami crystals by magnesium ion strength. Proc Natl Acad Sci U S A 2023; 120:e2302142120. [PMID: 37399399 PMCID: PMC10334761 DOI: 10.1073/pnas.2302142120] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/31/2023] [Indexed: 07/05/2023] Open
Abstract
Harnessing the programmable nature of DNA origami for controlling structural features in crystalline materials affords opportunities to bring crystal engineering to a remarkable level. However, the challenge of crystallizing a single type of DNA origami unit into varied structural outcomes remains, given the requirement for specific DNA designs for each targeted structure. Here, we show that crystals with distinct equilibrium phases and shapes can be realized using a single DNA origami morphology with an allosteric factor to modulate the binding coordination. As a result, origami crystals undergo phase transitions from a simple cubic lattice to a simple hexagonal (SH) lattice and eventually to a face-centered cubic (FCC) lattice. After selectively removing internal nanoparticles from DNA origami building blocks, the body-centered tetragonal and chalcopyrite lattice are derived from the SH and FCC lattices, respectively, revealing another phase transition involving crystal system conversions. The rich phase space was realized through the de novo synthesis of crystals under varying solution environments, followed by the individual characterizations of the resulting products. Such phase transitions can lead to associated transitions in the shape of the resulting products. Hexagonal prism crystals, crystals characterized by triangular facets, and twinned crystals are observed to form from SH and FCC systems, which have not previously been experimentally realized by DNA origami crystallization. These findings open a promising pathway toward accessing a rich phase space with a single type of building block and wielding other instructions as tools to develop crystalline materials with tunable properties.
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Affiliation(s)
- Lizhi Dai
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
| | - Xiaoxue Hu
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
| | - Min Ji
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
| | - Ningning Ma
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
| | - Hang Xing
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, China
| | - Jun-Jie Zhu
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
| | - Qianhao Min
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
| | - Ye Tian
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing210023, China
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