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Zhang L, Jin H, Zhang Z, Bai T, Wei M, He B, Zhao R, Suo Z. Triple-helix molecular-switch-actuated rolling circle amplification and catalytic hairpin assembly multistage signal amplified fluorescent aptasensor for detection of aflatoxin B1. Anal Chim Acta 2024; 1323:343072. [PMID: 39182973 DOI: 10.1016/j.aca.2024.343072] [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: 04/23/2024] [Revised: 07/24/2024] [Accepted: 08/05/2024] [Indexed: 08/27/2024]
Abstract
BACKGROUND Mycotoxins, a class of secondary metabolites produced by molds, are widely distributed in nature and are very common in food contamination. Aflatoxin B1 (AFB1) is a highly stable natural mycotoxin, and many agricultural products are easily contaminated by AFB1, it is important to establish a sensitive and efficient AFB1 detection method for food safety. The fluorescence aptamer sensor has shown satisfactory performance in AFB1 detection, but most of the fluorescence aptasensors are not sensitive enough, so improving the sensitivity of the aptasensor becomes the focus of this work. RESULTS Herein, an innovative fluorescent aptasensor for AFB1 detection which is based on catalytic hairpin assembly (CHA) and rolling circle amplification (RCA) driven by triple helix molecular switch (THMS) is proposed. A functional single-strand with an AFB1 aptamer, here called an APF, is first designed to lock onto the signal transduction probe (STP), which separates from THMS when target AFB1 is present. Subsequently, STP initiates the RCA reaction along the circular probe, syntheses macro-molecular mass products through repeated triggering sequences, triggers the CHA reaction to produce a large number of H1-H2 structures, which causes FAM to move away from BHQ-1 and recover its fluorescence signal. The fluorescence signal from FAM at 520 nm was collected as the signal output of aptasensor in this work. With high amplification efficiency of RCA and CHA of the fluorescence sensor, resulting in a low LOD value of 2.95 pg mL-1(S/N = 3). SIGNIFICANCE The successful establishment of the sensor designed in this work shows that the cascade amplification reaction is perfectly applied in the fluorescent aptamer sensor, and the signal amplification through the reaction between DNA strands is a simple and efficient method. In addition, it's also important to remember that the aptasensor can detect other targets only by changing the sequence of the aptamer, without redesigning other DNA sequences in the reaction system.
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Affiliation(s)
- Liuyi Zhang
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China
| | - Huali Jin
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China.
| | - Zhen Zhang
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China
| | - Tian Bai
- Henan Province Food Inspection Research Institute, Zhengzhou, 450008, China
| | - Min Wei
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China
| | - Baoshan He
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China
| | - Renyong Zhao
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China
| | - Zhiguang Suo
- College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China.
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Li Z, Wang Y, Wang H, Wang H, Shang Y, Wang S, Han Q, Li J, Zhao RC, Jiang Q, Ding B. Self-Assembled DNA Composite-Engineered Mesenchymal Stem Cells for Improved Skin-Wound Repair. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310241. [PMID: 38441385 DOI: 10.1002/smll.202310241] [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: 11/09/2023] [Revised: 02/15/2024] [Indexed: 08/02/2024]
Abstract
The direct use of mesenchymal stem cells (MSCs) as therapeutics for skin injuries is a promising approach, yet it still faces several obstacles, including limited adhesion, retention, and engraftment of stem cells in the wound area, as well as impaired regenerative and healing functions. Here, DNA-based self-assembled composites are reported that can aid the adhesion of MSCs in skin wounds, enhance MSC viability, and accelerate wound closure and re-epithelialization. Rolling-circle amplification (RCA)-derived DNA flowers, equipped with multiple copies of cyclic Arg-Gly-Asp (cRGD) peptides and anti-von Willebrand factor (vWF) aptamers, act as robust scavengers of reactive oxygen species (ROS) and enable synergistic recognition and adhesion to stem cells and damaged vascular endothelial cells. These DNA structure-aided stem cells are retained at localized wound sites, maintain repair function, and promote angiogenesis and growth factor secretion. In both normal and diabetes-prone db/db mice models with excisional skin injuries, facile topical administration of DNA flower-MSCs elicits rapid blood vessel formation and enhances the sealing of the wound edges in a single dose. DNA composite-engineered stem cells warrant further exploration as a new strategy for the treatment of skin and tissue damage.
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Affiliation(s)
- Zhuoting Li
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Yiming Wang
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Hong Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Haiyan Wang
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Yingxu Shang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Shihua Wang
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Qin Han
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Jing Li
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Robert Chunhua Zhao
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences, State Key Laboratory of Common Mechanism Research for Major Diseases, Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy, Beijing, 100005, China
| | - Qiao Jiang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Baoquan Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
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3
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Rath WH, Göstl R, Herrmann A. Mechanochemical Activation of DNAzyme by Ultrasound. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306236. [PMID: 38308193 PMCID: PMC10885644 DOI: 10.1002/advs.202306236] [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: 08/31/2023] [Revised: 01/11/2024] [Indexed: 02/04/2024]
Abstract
Controlling the activity of DNAzymes by external triggers is an important task. Here a temporal control over DNAzyme activity through a mechanochemical pathway with the help of ultrasound (US) is demonstrated. The deactivation of the DNAzyme is achieved by hybridization to a complementary strand generated through rolling circle amplification (RCA), an enzymatic polymerization process. Due to the high molar mass of the resulting polynucleic acids, shear force can be applied on the RCA strand through inertial cavitation induced by US. This exerts mechanical force and leads to the cleavage of the base pairing between RCA strand and DNAzyme, resulting in the recovery of DNAzyme activity. This is the first time that this release mechanism is applied for the activation of catalytic nucleic acids, and it has multiple advantages over other stimuli. US has higher penetration depth into tissues compared to light, and it offers a more specific stimulus than heat, which has also limited use in biological systems due to cell damage caused by hyperthermia. This approach is envisioned to improve the control over DNAzyme activity for the development of reliable and specific sensing applications.
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Affiliation(s)
- Wolfgang H. Rath
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- DWI – Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052056AachenGermany
| | - Robert Göstl
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- DWI – Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052056AachenGermany
| | - Andreas Herrmann
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- DWI – Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052056AachenGermany
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Zhang M, Guo X, Wang J. Advanced biosensors for mycotoxin detection incorporating miniaturized meters. Biosens Bioelectron 2023; 224:115077. [PMID: 36669289 DOI: 10.1016/j.bios.2023.115077] [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: 10/27/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Advanced biosensors, considered as emerging technologies, are capable of accurate, quantitative and real-time analysis for point-of-care testing (POCT) applications. Moreover, the integrating of miniaturized meters into these advanced biosensors makes them ideally appropriate for portable, sensitive and selective detection of biomolecules. Miniaturized meters including PGMs (personal glucose meters), thermometer, pressuremeter, pH meter, etc. are the most accurate devices and wide availability in the market, exhibiting a promising potential towards detection of small molecule mycotoxins. In this article, we introduce and analyze the recent advancements for sensing of mycotoxins measured by handheld meters since the first report in 2012. Furthermore, limitations and challenges for versatile meters application against mycotoxins in food matrix are highlighted. By overcoming the bottleneck problems, we believe the miniaturized meters-based biosensor platform will provide great possibilities for mycotoxins analysis and launch them to the market.
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Affiliation(s)
- Mengke Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Xiaodong Guo
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China.
| | - Jiaqi Wang
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agriculture Sciences, Beijing, 100193, China.
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5
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Paluzzi VE, Zhang C, Mao C. Near-Quantitative Preparation of Short Single-Stranded DNA Circles. Angew Chem Int Ed Engl 2023; 62:e202218443. [PMID: 36652628 DOI: 10.1002/anie.202218443] [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: 12/14/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
Small, single-stranded DNA (ssDNA) circles have many applications, such as templating rolling circle amplification (RCA), capturing microRNAs, and scaffolding DNA nanostructures. However, it is challenging to prepare such ssDNA circles, particularly when the DNA size becomes very small (e.g. a 20 nucleotide (nt) long ssDNA circle). Often, such short ssDNA dominantly form concatemers (either linear or circular) due to intermolecular ligation, instead of forming monomeric ssDNA circles by intramolecular ligation. Herein, a simple method to overcome this problem by designing the complementary linker molecules is reported. It is demonstrated that ssDNA, as short as 16 nts, can be enzymatically ligated (by the commonly used T4 DNA ligase) into monomeric ssDNA circles at high concentration (100 μM) with high yield (97 %). This method does not require any special sequence, thus, it is expected to be generally applicable. The experimental protocol is identical to regular DNA ligation, thus, is expected to be user friendly for general chemists and biologists.
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Affiliation(s)
- Victoria E Paluzzi
- Purdue University, Department of Chemistry, West Lafayette, IN-47907, USA
| | - Cuizheng Zhang
- Purdue University, Department of Chemistry, West Lafayette, IN-47907, USA
| | - Chengde Mao
- Purdue University, Department of Chemistry, West Lafayette, IN-47907, USA
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Cui W, Fan X, Zhao W, Liu J, Zheng L, Zhou L, Zhang J, Zhang X, Wang X. A label-free fluorescent biosensor for amplified detection of T4 polynucleotide kinase activity based on rolling circle amplification and catalytic hairpin assembly. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121938. [PMID: 36209712 DOI: 10.1016/j.saa.2022.121938] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/06/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
T4 polynucleotide kinase (PNK) plays a key role in maintaining genome integrity and repairing DNA damage. In this paper, we proposed a label-free fluorescent biosensor for amplified detection of T4 PNK activity based on rolling circle amplification (RCA) and catalytic hairpin assembly (CHA). Firstly, we designed a padlock probe with a 5'-hydroxyl terminus for phosphorylation reaction, a complementary sequence of the primer for initiating RCA, and a complementary sequence of the trigger for triggering CHA. T4 PNK catalyzed the phosphorylation reaction by adding a phosphate group to the 5'-hydroxyl terminus of padlock probe, generating a phosphorylated padlock probe. Then it hybridized with the primer to generate a circular probe under the action of ligase. Subsequently, the primer initiated an RCA reaction along the circular probe to synthesize a large molecular weight product with repetitive trigger sequences. The triggers then triggered the cyclic assembly reactions between hairpin probe 1 and hairpin probe 2 to generate a large amount of complexes with free G-rich sequences. The free G-rich sequences folded into G-quadruplex structures, and the N-methylmesoporphyrin IXs were inserted into them to produce an amplified fluorescent signal. Benefiting from high amplification efficiency of RCA and CHA, this fluorescent biosensor could detect T4 PNK as low as 6.63 × 10-4 U mL-1, and was successfully applied to detect its activity in HeLa cell lysates. Moreover, this fluorescent biosensor could effectively distinguish T4 PNK from other alternatives and evaluate the inhibitory effect of inhibitor, indicating that it had great potential in drug screening and disease treatment.
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Affiliation(s)
- Wanling Cui
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China.
| | - Xiaoyang Fan
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Wenqi Zhao
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Jinrong Liu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | | | - Libing Zhou
- Laoling People's Hospital, Dezhou 253600, PR China
| | - Junye Zhang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Xiumei Zhang
- College of Physics and Electronic Information, Dezhou University, Dezhou 253023, PR China
| | - Xiaoxin Wang
- College of Physics and Electronic Information, Dezhou University, Dezhou 253023, PR China
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7
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Ma X, Shi L, Xie H, Kuang D, Xu Y, Ma J, Yang J, Sun L. Sensitive Detection of Fat Mass and Obesity-Associated Protein based on Terminal Deoxynucleotidyl Transferase-Mediated Signal Amplification. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Ullah S, Zahra QUA, Mansoorianfar M, Hussain Z, Ullah I, Li W, Kamya E, Mehmood S, Pei R, Wang J. Heavy Metal Ions Detection Using Nanomaterials-Based Aptasensors. Crit Rev Anal Chem 2022; 54:1399-1415. [PMID: 36018260 DOI: 10.1080/10408347.2022.2115287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Heavy metals ions as metallic pollutants are a growing global issue due to their adverse effects on the aquatic ecosystem, and human health. Unfortunately, conventional detection methods such as atomic absorption spectrometry exhibit a relatively low limit of detection and hold numerous disadvantages, and therefore, the development of an efficient method for in-situ and real-time detection of heavy metal residues is of great importance. The aptamer-based sensors offer distinct advantages over antibodies and emerged as a robust sensing platform against various heavy metals due to their high sensitivity, ease of production, simple operations, excellent specificity, better stability, low immunogenicity, and cost-effectiveness. The nucleic acid aptamers in conjugation with nanomaterials can bind to the metal ions with good specificity/selectivity and can be used for on-site monitoring of metal ion residues. This review aimed to provide background information about nanomaterials-based aptasensor, recent advancements in aptamer conjunction on nanomaterials surface, the role of nanomaterials in improving signal transduction, recent progress of nanomaterials-based aptasening procedures (from 2010 to 2022), and future perspectives toward the practical applications of nanomaterials-based aptasensors against hazardous metal ions for food safety and environmental monitoring.
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Affiliation(s)
- Salim Ullah
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
| | - Qurat Ul Ain Zahra
- Biomedical Imaging Center, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
- The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, PR China
| | - Mojtaba Mansoorianfar
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
| | - Zahid Hussain
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
| | - Ismat Ullah
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
| | - Wenjing Li
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
| | - Edward Kamya
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
| | - Shah Mehmood
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
| | - Jine Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu, PR China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China (USTC), Hefei, Anhui, PR China
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9
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A multiple primers-mediated exponential rolling circle amplification strategy for highly sensitive detection of T4 polynucleotide kinase and T4 DNA ligase activity. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Chen K, Zhang Z, Zhu X, Lin Z, Xie J, Dong Q, Fu Q, Zhang Y. In situ signal amplification improves the capture efficiency of circulating tumor cells with low expression of EpCAM. Anal Chim Acta 2022; 1221:340133. [DOI: 10.1016/j.aca.2022.340133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 11/01/2022]
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Dual-labeling ratiometric electrochemical strategy initiated with ISDPR for accurate screening MecA gene. Biosens Bioelectron 2022; 197:113772. [PMID: 34768067 DOI: 10.1016/j.bios.2021.113772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 12/30/2022]
Abstract
An outstanding dual-labeling ratiometric electrochemical biosensor based on isothermal strand displacement polymerization reaction (ISDPR) for highly sensitive and selective detection of mecA gene has been proposed. Concretely, in the presence of mecA gene, the addition of methylene blue (MB)-labeled primer and polymerase induced recycling amplification to change the structure of the ferrocene (Fc)-labeled hairpin probe, thereby releasing abundant target gene to realize the signal amplification and dual-signal output. Through this process, the electrochemical responses of Fc (IFc) and MB (IMB) were both substantially reduced and increased proportionally, ensuring that the value of IMB/IFc can accurately reflect the true detection level of mecA gene. Benefiting from the "signal-on/off" strategy, the fabricated biosensor exhibited outstanding sequence specificity to discriminate mismatched mecA gene, which verified to be 2.72 times that of single-label detection for perfect match/single base mismatch (PM/MM) discrimination ratio. This strategy effectively integrated the advantages of signal amplification and ratiometric modes, making the biosensor exhibit a broad working range with 10 fM - 3000 pM and a limit of detection (LOD) with 3.33 fM (S/N = 3). Moreover, the proposed biosensor has good feasibility for mecA gene determination in water samples due to acceptable recoveries (95-115%) and repeatability relative standard deviations (RSD) value of 4%. This will provide a powerful sensing platform for improving accuracy and decreasing background signal of sensor for ARGs screening in environmental monitoring.
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12
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Tao J, Liu Z, Zhu Z, Zhang Y, Wang H, Pang P, Yang C, Yang W. Electrochemical detection of T4 polynucleotide kinase activity based on magnetic Fe 3O 4@TiO 2 nanoparticles triggered by a rolling circle amplification strategy. Talanta 2022; 241:123272. [PMID: 35121542 DOI: 10.1016/j.talanta.2022.123272] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 12/29/2022]
Abstract
An ultrasensitive electrochemical detection of the activity and inhibition of T4 polynucleotide kinase (T4 PNK) was developed by using magnetic Fe3O4@TiO2 core-shell nanoparticles, which was triggered by a rolling circle amplification strategy (Fe3O4@TiO2-RCA). We used Fe3O4@TiO2 as a substrate to anchor a DNA primer. DNA S1 with 5'-OH termini was phosphorylated in the presence of T4 PNK and ATP, which was adsorbed on the surface of Fe3O4@TiO2 NPs and served as the primer for subsequent RCA reactions. After adding circular template DNA S2, RCA was initiated in the presence of phi29 DNA polymerase and dNTPs. Then, Fc-labeled DNA S3 (Fc-S3) was hybridized with RCA. The obtained Fe3O4@TiO2-RCA was adsorbed on the surface of a magnetic gold electrode (MGE) by magnetic enrichment, resulting in an enhanced electrochemical signal. The T4 PNK activity can be monitored by measuring the electrochemical signal generated. This electrochemical assay is sensitive to the activity of T4 PNK with a dynamic linear range of 0.00001-20 U/mL and a low detection limit of 3.0 × 10-6 U/mL. The proposed strategy can be used to screen the T4 PNK inhibitors, so it has great potential in the discovery of nucleotide kinase-target drug and early clinical diagnosis of cancer.
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Affiliation(s)
- Jinpeng Tao
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, PR China
| | - Zaiqiong Liu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, PR China
| | - Zhenyu Zhu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, PR China
| | - Yanli Zhang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, PR China.
| | - Hongbin Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, PR China
| | - Pengfei Pang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, PR China.
| | - Chun Yang
- Shaanxi Geological Survey Center, Xi'an, 710068, PR China
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, Geelong, VIC, 3217, Australia
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13
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Recent advance in dual-functional luminescent probes for reactive species and common biological ions. Anal Bioanal Chem 2022; 414:5087-5103. [DOI: 10.1007/s00216-021-03792-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Indexed: 01/17/2023]
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14
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Bialy RM, Mainguy A, Li Y, Brennan JD. Functional nucleic acid biosensors utilizing rolling circle amplification. Chem Soc Rev 2022; 51:9009-9067. [DOI: 10.1039/d2cs00613h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Functional nucleic acids regulate rolling circle amplification to produce multiple detection outputs suitable for the development of point-of-care diagnostic devices.
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Affiliation(s)
- Roger M. Bialy
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
| | - Alexa Mainguy
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
| | - Yingfu Li
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - John D. Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
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15
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Amalraj A, Perumal P. Dual fluorometric biosensor based on a nanoceria encapsulated metal organic framework and a signal amplification strategy of a hybridization chain reaction for the detection of melamine and Pb 2+ ions in food samples. NEW J CHEM 2022. [DOI: 10.1039/d2nj01089e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The increased need for melamine and Pb2+ ion detection systems that are versatile, ultra-sensitive, and easy to use is highly significant.
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Affiliation(s)
- Arunjegan Amalraj
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Panneerselvam Perumal
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
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16
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Kim KR, Kim J, Mao C, Ahn DR. Kissing loop-mediated fabrication of RNA nanoparticles and their potential as cellular and in vivo siRNA delivery platforms. Biomater Sci 2021; 9:8148-8152. [PMID: 34755728 DOI: 10.1039/d1bm01440d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe an efficient method to condense RNAs into tightly packed RNA nanoparticles (RNPs) for biomedical applications without hydrophobic or cationic agents. We embedded kissing loops and siRNA in the RNAs to constrain the size of RNPs to ca. 100 nm, making them suitable not only for cellular uptake but also for passive tumor accumulation. The resulting RNPs were efficiently internalized into cells and downregulated the target gene of siRNAs. When intravenously injected into tumor-bearing mice, RNPs could also accumulate in the tumor. The reported fabrication method could be readily adopted as a platform to prepare RNPs for in vitro and in vivo delivery of bioactive RNAs.
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Affiliation(s)
- Kyoung-Ran Kim
- Center for Theragnosis, Biomedical Research Research Division, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
| | - Junghyun Kim
- Center for Theragnosis, Biomedical Research Research Division, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea.
| | - Chengde Mao
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Dae-Ro Ahn
- Center for Theragnosis, Biomedical Research Research Division, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea. .,Division of Biomedical Science and Technology, KIST School, University of Science and Technology (UST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
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17
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Henry SJ, Stephanopoulos N. Functionalizing DNA nanostructures for therapeutic applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 13:e1729. [PMID: 34008347 PMCID: PMC8526372 DOI: 10.1002/wnan.1729] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/29/2021] [Accepted: 04/26/2021] [Indexed: 12/29/2022]
Abstract
Recent advances in nanotechnology have enabled rapid progress in many areas of biomedical research, including drug delivery, targeted therapies, imaging, and sensing. The emerging field of DNA nanotechnology, in which oligonucleotides are designed to self-assemble into programmable 2D and 3D nanostructures, offers great promise for further advancements in biomedicine. DNA nanostructures present highly addressable and functionally diverse platforms for biological applications due to their ease of construction, controllable architecture and size/shape, and multiple avenues for chemical modification. Both supramolecular and covalent modification with small molecules and polymers have been shown to expand or enhance the functions of DNA nanostructures in biological contexts. These alterations include the addition of small molecule, protein, or nucleic acid moieties that enable structural stability under physiological conditions, more efficient cellular uptake and targeting, delivery of various molecular cargos, stimulus-responsive behaviors, or modulation of a host immune response. Herein, various types of DNA nanostructure modifications and their functional consequences are examined, followed by a brief discussion of the future opportunities for functionalized DNA nanostructures as well as the barriers that must be overcome before their translational use. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Emerging Technologies Biology-Inspired Nanomaterials > Nucleic Acid-Based Structures.
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Affiliation(s)
- Skylar J.W. Henry
- School of Molecular Sciences, Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe AZ
| | - Nicholas Stephanopoulos
- School of Molecular Sciences, Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe AZ
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Gangrade A, Stephanopoulos N, Bhatia D. Programmable, self-assembled DNA nanodevices for cellular programming and tissue engineering. NANOSCALE 2021; 13:16834-16846. [PMID: 34622910 DOI: 10.1039/d1nr04475c] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
DNA-based nanotechnology has evolved into an autonomous, highly innovative, and dynamic field of research at the nexus of supramolecular chemistry, nanotechnology, materials science, and biotechnology. DNA-based materials, including origami nanodevices, have started to emerge as an ideal scaffold for use in cellular programming, tissue engineering, and drug delivery applications. We cover herein the applications for DNA as a scaffold for interfacing with, and guiding, the activity of biological systems like cells and tissues. Although DNA is a highly programmable molecular building block, it suffers from a lack of functional capacity for guiding and modulating cells. Coupling DNA to biologically active molecules can bestow bioactivity to these nanodevices. The main goal of such nanodevices is to synthesize systems that can bind to cells and mimic the extracellular environment, and serve as a highly promising toolbox for multiple applications in cellular programming and tissue engineering. DNA-based programmable devices offer a highly promising approach for programming collections of cells, tissue engineering, and regenerative medicine applications.
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Affiliation(s)
- Ankit Gangrade
- Biological Engineering, Indian Institute of Technology Gandhinagar, India.
| | - Nicholas Stephanopoulos
- School of Molecular Sciences, Arizona State University, USA
- Biodesign Center for Molecular Design and Biomimetics, Arizona State University, USA
| | - Dhiraj Bhatia
- Biological Engineering, Indian Institute of Technology Gandhinagar, India.
- Center for Biomedical Engineering, Indian Institute of Technology Gandhinagar, India
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Baker Y, Yuan L, Chen J, Belle R, Carlisle R, El-Sagheer A, Brown T. Expanding the chemical functionality of DNA nanomaterials generated by rolling circle amplification. Nucleic Acids Res 2021; 49:9042-9052. [PMID: 34403467 PMCID: PMC8450075 DOI: 10.1093/nar/gkab720] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/01/2021] [Accepted: 08/08/2021] [Indexed: 02/02/2023] Open
Abstract
Rolling circle amplification (RCA) is a powerful tool for the construction of DNA nanomaterials such as hydrogels, high-performance scaffolds and DNA nanoflowers (DNFs), hybrid materials formed of DNA and magnesium pyrophosphate. Such DNA nanomaterials have great potential in therapeutics, imaging, protein immobilisation, and drug delivery, yet limited chemistry is available to expand their functionality. Here, we present orthogonal strategies to produce densely modified RCA products and DNFs. We provide methods to selectively modify the DNA component and/or the protein cargo of these materials, thereby greatly expanding the range of chemical functionalities available to these systems. We have used our methodology to construct DNFs bearing multiple surface aptamers and peptides capable of binding to cancer cells that overexpress the HER2 oncobiomarker, demonstrating their potential for diagnostic and therapeutic applications.
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Affiliation(s)
- Ysobel R Baker
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Liyiwen Yuan
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Jinfeng Chen
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Roman Belle
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Robert Carlisle
- Institute of Biomedical Engineering, University of Oxford, Oxford, OX3 7DQ, UK
| | - Afaf H El-Sagheer
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
- Chemistry Branch Department of Science and Mathematics, Suez University, Suez 43721, Egypt
| | - Tom Brown
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
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Wang L, Deng Y, Huang Y, Wei J, Ma J, Li G. Template-free multiple signal amplification for highly sensitive detection of cancer cell-derived exosomes. Chem Commun (Camb) 2021; 57:8508-8511. [PMID: 34351331 DOI: 10.1039/d1cc03640h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, we have designed a template-free multiple signal amplification method for the highly sensitive detection of cancer cell-derived exosomes. In this design, DNase I serves as a bridge to link the DNA-based amplification approach and terminal deoxynucleotidyl transferase (TdT)-mediated polymerization reaction. Consequently, a detection limit of 10 particles per μL can be achieved, while a complex nucleic acid sequence design can be avoided. This method also exhibits good performance in a complicated matrix and enables the differentiation of healthy individuals from colorectal cancer (CRC) patients.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, P. R. China.
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21
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Zhang Z, Liu Q, Tan J, Zhan X, Liu T, Wang Y, Lu G, Wu M, Zhang Y. Coating with flexible DNA network enhanced T-cell activation and tumor killing for adoptive cell therapy. Acta Pharm Sin B 2021; 11:1965-1977. [PMID: 34386331 PMCID: PMC8343197 DOI: 10.1016/j.apsb.2021.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/11/2021] [Accepted: 03/28/2021] [Indexed: 12/12/2022] Open
Abstract
Adoptive cell therapy (ACT) is an emerging powerful cancer immunotherapy, which includes a complex process of genetic modification, stimulation and expansion. During these in vitro or ex vivo manipulation, sensitive cells are inescapability subjected to harmful external stimuli. Although a variety of cytoprotection strategies have been developed, their application on ACT remains challenging. Herein, a DNA network is constructed on cell surface by rolling circle amplification (RCA), and T cell-targeted trivalent tetrahedral DNA nanostructure is used as a rigid scaffold to achieve high-efficient and selective coating for T cells. The cytoprotective DNA network on T-cell surface makes them aggregate over time to form cell clusters, which exhibit more resistance to external stimuli and enhanced activities in human peripheral blood mononuclear cells and liver cancer organoid killing model. Overall, this work provides a novel strategy for in vitro T cell-selective protection, which has a great potential for application in ACT.
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Affiliation(s)
- Ziyan Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-sen University, Guangzhou 510006, China
| | - Qiaojuan Liu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Jizhou Tan
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaoxia Zhan
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Ting Liu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuting Wang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Gen Lu
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou 510080, China
| | - Minhao Wu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuanqing Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-sen University, Guangzhou 510006, China
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Lin M, Zhang J, Wan H, Yan C, Xia F. Rationally Designed Multivalent Aptamers Targeting Cell Surface for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9369-9389. [PMID: 33146988 DOI: 10.1021/acsami.0c15644] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Specific interactions between ligands and receptors on cell surface play an important role in the cell biological process. Nucleic acid aptamers as commonly used ligands enable specific recognition and tight binding to membrane protein receptors for modulation of cell fate. Therefore, molecular probes with aptamers can be applied for cancer diagnosis and targeted therapy by targeting overexpression membrane proteins of cancer cells. However, because of their fast degradation and rapid glomerulus clearance in vivo, the applications of aptamers in physiological conditions remain challenged. Inspired by natural multivalent interactions, many approaches have been developed to construct multivalent aptamers to improve the performance of aptamers in complex matrices with higher binding affinity, more stability, and longer circulation time. In this review, we first introduce the aptamer generation from purified protein-based SELEX and whole cell-based SELEX for targeting the cell surface. We then highlight the approaches to fabricate multivalent aptamers and discuss their properties. By integrating different materials (including inorganic nanomaterials, diacyllipid, polymeric nanoparticles, and DNA nanostructures) as scaffolds with an interface modification technique, we have summarized four kinds of multivalent aptamers. After that, representative applications in biosensing and targeted therapy are illustrated to show the elevated performance of multivalent aptamers. In addition, we analyze the challenges and opportunities for the clinical practices of multivalent aptamers.
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Affiliation(s)
- Meihua Lin
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Jian Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hao Wan
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Chengyang Yan
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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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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24
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Zhang Z, Wang S, Ma J, Zhou T, Wang F, Wang X, Zhang G. Rolling Circle Amplification-Based Polyvalent Molecular Beacon Probe-Assisted Signal Amplification Strategies for Sensitive Detection of B16 Cells. ACS Biomater Sci Eng 2020; 6:3114-3121. [PMID: 33463255 DOI: 10.1021/acsbiomaterials.0c00288] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We developed a simple and sensitive signal amplification method for the detection of B16 cells based on the combination of rolling circle amplification (RCA) and molecular beacons (MBs). A long-chain structure of DNA synthesized by RCA was used to turn on aptamer-based MBs. Because of the multiple complementary repeat units, the RCA scaffold hybridized tens or hundreds of MBs to form polyvalent aptamer probes. The unfold ability and the fluorescence intensity of MBs were both improved by RCA, as compared to short single chains. The cell experiment results demonstrated that RCA-based polyvalent MBs were significantly more effective than monovalent MBs in targeting B16 cells and signal sensitivity because of their multivalent effects. The establishment of this strategy would provide a powerful platform for early clinical diagnostics of cancer cells.
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Affiliation(s)
- Zhiqing Zhang
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Shanshan Wang
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Jie Ma
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Ting Zhou
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Fang Wang
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Xiufeng Wang
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Guodong Zhang
- Department of Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
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