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Wang S, Guang J, Gao Y, Fan B, Liang Y, Pan J, Li L, Meng W, Hu F. Fluorescent DNA tetrahedral probe with catalytic hairpin self-assembly reaction for imaging of miR-21 and miR-155 in living cells. Mikrochim Acta 2024; 191:462. [PMID: 38990374 DOI: 10.1007/s00604-024-06529-4] [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: 03/29/2024] [Accepted: 06/26/2024] [Indexed: 07/12/2024]
Abstract
A CHA-based fluorescent DNA tetrahedral probe (FDTp) has been designed to detect the microRNAs miR-21 and miR-155 sensitively and specifically in living cells. The design consisted of functional elements (H1, H2, and Protector) connected to a DNA tetrahedron modified with two pairs of fluorophores and quenching groups. In the presence of miR-21, the chain displacement effect was triggered and Cy3 fluorescence was emitted. In the presence of miR-155, the signal of the catalytic hairpin assembly (CHA) between H1 and H2 on FDTp was amplified, making the fluorescence of FAM sensitive to miR-155. Using this method, the detection limit for miR-155 was 5 pM. The FDTp successfully imaged miR-21 and miR-155 in living cells and distinguished a variety of cell lines based on their expression levels of miR-21 and miR-155. The detection and imaging of dual targets in this design ensured the accuracy of tumor diagnosis and provided a new method for early tumor diagnosis.
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Affiliation(s)
- Shan Wang
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China
| | - Jiejie Guang
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China
- Pharmacy Department, Huangshan City People's Hospital, Liyuan Road, Tunxi District, Huangshan, 245000, China
| | - Yahui Gao
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China
| | - Bingyuan Fan
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China
| | - Yan Liang
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China
| | - Jinru Pan
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China
| | - Li Li
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China.
| | - Wei Meng
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China.
| | - Fang Hu
- Key Laboratory of Biomedical Functional Materials, School of Sciences, China Pharmaceutical University, Nanjing, 211198, China.
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Yu J, Liu Q, Qi L, Fang Q, Shang X, Zhang X, Du Y. Fluorophore and nanozyme-functionalized DNA walking: A dual-mode DNA logic biocomputing platform for microRNA sensing in clinical samples. Biosens Bioelectron 2024; 252:116137. [PMID: 38401282 DOI: 10.1016/j.bios.2024.116137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/12/2024] [Accepted: 02/16/2024] [Indexed: 02/26/2024]
Abstract
Inspired by the programmability and modifiability of nucleic acids, point-of-care (POC) diagnostics for nucleic acid target detection is evolving to become more diversified and intelligent. In this study, we introduce a fluorescent and photothermal dual-mode logic biosensing platform that integrates catalytic hairpin assembly (CHA), toehold-mediated stand displacement reaction (SDR) and a DNA walking machine. Dual identification and signal reporting modules are incorporated into DNA circuits, orchestrated by an AND Boolean logic gate operator and magnetic beads (MBs). In the presence of bispecific microRNAs (miRNAs), the AND logic gate activates, driving the DNA walking machine, and facilitating the collection of hairpin DNA stands modified with FAM fluorescent group and CeO2@Au nanoparticles. The CeO2@Au nanoparticles, served as a nanozyme, can oxidize TMB into oxidation TMB (TMBox), enabling a near-infrared (NIR) laser-driven photothermal effect following the magnetic separation of MBs. This versatile platform was employed to differentiate between plasma samples from breast cancer patients, lung cancer patients, and healthy donors. The thermometer-readout transducers, derived from the CeO2@Au@DNA complexes, provided reliable results, further corroborated by fluorescence assays, enhancing the confidence in the diagnostics compared to singular detection method. The dual-mode logic biosensor can be easily customized to various nucleic acid biomarkers and other POC signal readout modalities by adjusting recognition sequences and modification strategies, heralding a promising future in the development of intelligent, flexible diagnostics for POC testing.
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Affiliation(s)
- Jingyuan Yu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, PR China
| | - Quanyi Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, PR China
| | - Lijuan Qi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, PR China
| | - Qi Fang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, PR China
| | - Xudong Shang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China
| | - Xiaojun Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China.
| | - Yan Du
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, PR China.
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Tajadini H, Cornelissen JJLM, Zadegan R, Ravan H. An approach for state differentiation in nucleic acid circuits: Application to diagnostic DNA computing. Anal Chim Acta 2024; 1294:342266. [PMID: 38336407 DOI: 10.1016/j.aca.2024.342266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Differentiating between different states in nucleic acid circuits is crucial for various biological applications. One approach, there is a requirement for complicated sequential summation, which can be excessive for practical purposes. By selectively labeling biologically significant states, this study tackles the issue and presents a more cost-effective and streamlined solution. The challenge is to efficiently distinguish between different states in a nucleic acid circuit. RESULTS An innovative method is introduced in this study to distinguish between states in a nucleic acid circuit, emphasizing the biologically relevant ones. The circuit comprises four DNA logic gates and two detection modules, one for determining fetal gender and the other for diagnosing X-linked genetic disorders. The primary module generates a G-quadruplex DNAzyme when activated by specific biomarkers, which leads to a distinct colorimetric signal. The secondary module responds to hemophilia and choroideremia biomarkers, generating one or two DNAzymes. The absence of female fetus indicators results in no DNAzyme or color change. The circuit can differentiate various fetal states by producing one to four active DNAzymes in response to male fetus biomarkers. A single-color solution for state differentiation is provided by this approach, which promises significant advancements in DNA computing and diagnostic applications. SIGNIFICANCE The innovative approach used in this study to distinguish states in nucleic acid circuits holds great significance. By selectively labeling biologically relevant states, circuit design is simplified and complexity is reduced. This advancement enables cost-effective and efficient diagnostic applications and contributes to DNA computing, providing a valuable solution to a fundamental problem.
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Affiliation(s)
- Hanie Tajadini
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Jeroen J L M Cornelissen
- Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, Enschede, AE, 7500, the Netherlands
| | - Reza Zadegan
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, Greensboro, NC, USA
| | - Hadi Ravan
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran; Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, Enschede, AE, 7500, the Netherlands.
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Mo L, Mo M, Liang D, Yang C, Lin W. Simultaneous detection and imaging of two specific miRNAs using DNA tetrahedron-based catalytic hairpin assembly. Talanta 2023; 265:124871. [PMID: 37369154 DOI: 10.1016/j.talanta.2023.124871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 06/29/2023]
Abstract
Improving the accuracy, sensitivity and speed of intracellular miRNA imaging is essential for early diagnosis of cancer. To achieve this goal, we herein present a strategy for imaging two distinct miRNAs by DNA tetrahedron-based catalytic hairpin assembly (DCHA). Two nanoprobes, DTH-13 and DTH-24, were prepared by one-pot synthesis. The resultant structures were DNA tetrahedrons functionalized with two sets of CHA hairpins, which respectively responded to miR-21 and miR-155. Using these structured DNA nanoparticles as the carriers, the probes could easily enter living cells. The presence of miR-21 or miR-155 could trigger CHA between DTH-13 and DTH-24, leading to independent fluorescence signals of FAM and Cy3. In this system, the sensitivity and kinetics were significantly enhanced owing to the strategy of DCHA. The sensing performance of our method was thoroughly investigated in buffers, fetal bovine serum (FBS) solutions, living cells, and clinical tissue samples. The results validated the potential of DTH nanoprobes as a diagnostic tool for early stages of cancer.
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Affiliation(s)
- Liuting Mo
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
| | - Mingxiu Mo
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
| | - Danlian Liang
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
| | - Chan Yang
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
| | - Weiying Lin
- Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China.
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Shiu SCC, Whitehouse WL, Tanner JA. Designing aptamer-enabled DNA polyhedra using paper origami. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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