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Wen K, Meng X, Lara K, Lin Q. Cost-effective evaluation of Aptamer candidates in SELEX-based Aptamer isolation. Talanta 2024; 275:126103. [PMID: 38663069 DOI: 10.1016/j.talanta.2024.126103] [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: 11/07/2023] [Revised: 04/06/2024] [Accepted: 04/11/2024] [Indexed: 05/30/2024]
Abstract
Aptamers are short, single-stranded nucleic acids with high affinity and specificity for various targets, making them valuable in diagnostics and therapeutics. Their isolation traditionally involves a time-consuming and costly process called SELEX. While SELEX methods have evolved to improve binding and amplification, the crucial step of aptamer identification from sequencing data remains expensive and often overlooked. Common identification methods require modification of aptamer candidates with labels like biotin or fluorescent dyes, which becomes costly and cumbersome for high-throughput sequencing data. This paper presents an efficient and cost-effective approach to streamline aptamer identification. It employs asymmetric polymerase chain reaction (PCR) to generate modified single-stranded DNA copies of aptamer candidates, simplifying the modification process. By using excess modified forward primers and limited reverse primers, this method reduces costs since only unmodified candidates need to be synthesized initially. The approach was demonstrated with an IgE protein aptamer and successfully applied to identify aptamers from a pool of 12 candidates against a monoclonal antibody. The validity of the results was further confirmed through the direct synthesis of fluorophore-conjugated aptamer candidates, yielding consistent outcomes while reducing the cost by threefold. This approach addresses a critical bottleneck in aptamer discovery by significantly reducing the time and cost associated with aptamer identification, facilitating aptamer-based research and making aptamers more accessible for various applications in diagnostics and therapeutics.
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Affiliation(s)
- Kechun Wen
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Xin Meng
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Kathie Lara
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
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2
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Bi X, Li S, Yang F, Yuan R, Xiang Y. Cascaded autocatalytic hairpin assembly molecular circuit for amplified fluorescent aptamer luteinising hormone assay. Talanta 2024; 275:126150. [PMID: 38692046 DOI: 10.1016/j.talanta.2024.126150] [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: 01/24/2024] [Revised: 04/07/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
The quantitative detection of luteinising hormone (LH) is critical for the study of the physiological mechanism of reproductive function and the assessment of infertility and the clinical treatment of reproductive disorders. However, conventional approaches for LH detection are mostly based on an antibody recognition module with the limitations of sensitivity, simplicity and cost. The development of robust LH sensing methods is therefore highly demanded for facilitating the diagnosis of LH-related diseases. We establish a convenient, amplified and sensitive fluorescent aptamer LH assay based on new target-triggered and cascaded autocatalytic hairpin assembly (C-aCHA) circuit amplification means via initiator sequence replication. Target LH molecules bind the aptamers in the aptamer/initiator duplexes to release the initiator sequences, which trigger CHA formation of DNA three-way junctions (TWJs) and the unfolding of fluorescently quenched signal hairpins to show amplified fluorescence. The TWJs further activate another CHA cycle for the yield of more initiator sequences to form the C-aCHA circuit amplification cycles, which lead to the unfolding of many signal hairpins to exhibit substantially magnified fluorescence recovery for detecting LH down to 8.56 pM in the range from 10 pM to 50 nM. In addition, the monitoring of trace LH in diluted serums by this sensing approach has been also verified. Our LH assay clearly outperforms current existing antibody-based methods and the C-aCHA signal amplification strategy can be easily extended as a robust means for sensitively monitoring various biomolecular markers with simple replacement of the corresponding aptamers for diverse applications.
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Affiliation(s)
- Xin Bi
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Chongqing, 400715, PR China
| | - Shunmei Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Chongqing, 400715, PR China
| | - Fang Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Chongqing, 400715, PR China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Chongqing, 400715, PR China
| | - Yun Xiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Chongqing, 400715, PR China.
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3
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Ram TB, Krishnan S, Jeevanandam J, Danquah MK, Thomas S. Emerging Biohybrids of Aptamer-Based Nano-Biosensing Technologies for Effective Early Cancer Detection. Mol Diagn Ther 2024; 28:425-453. [PMID: 38775897 DOI: 10.1007/s40291-024-00717-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2024] [Indexed: 06/28/2024]
Abstract
Cancer is a leading global cause of mortality, which underscores the imperative of early detection for improved patient outcomes. Biorecognition molecules, especially aptamers, have emerged as highly effective tools for early and accurate cancer cell identification. Aptamers, with superior versatility in synthesis and modification, offer enhanced binding specificity and stability compared with conventional antibodies. Hence, this article reviews diagnostic strategies employing aptamer-based biohybrid nano-biosensing technologies, focusing on their utility in detecting cancer biomarkers and abnormal cells. Recent developments include the synthesis of nano-aptamers using diverse nanomaterials, such as metallic nanoparticles, metal oxide nanoparticles, carbon-derived substances, and biohybrid nanostructures. The integration of these nanomaterials with aptamers significantly enhances sensitivity and specificity, promising innovative and efficient approaches for cancer diagnosis. This convergence of nanotechnology with aptamer research holds the potential to revolutionize cancer treatment through rapid, accurate, and non-invasive diagnostic methods.
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Affiliation(s)
| | | | - Jaison Jeevanandam
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Madeira, Portugal.
| | - Michael K Danquah
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, USA
| | - Sabu Thomas
- School of Polymer Science and Technology and School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India
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Xiao C, Wang N, Zhao Y, Liu X, Li H, Huang A, Wang L, Lou X, Gao B, Shao N. Rapid and Sensitive Detection of Inactivated SARS-CoV-2 Virus via Fiber-Optic and Electrochemical Impedance Spectroscopy Based Aptasensors. BIOSENSORS 2024; 14:231. [PMID: 38785705 PMCID: PMC11117632 DOI: 10.3390/bios14050231] [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: 04/08/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024]
Abstract
The development of rapid detection tools for viruses is vital for the prevention of pandemics and biothreats. Aptamers that target inactivated viruses are attractive for sensors due to their improved biosafety. Here, we evaluated a DNA aptamer (named as 6.9) that specifically binds to the inactivated SARS-CoV-2 virus with a low dissociation constant (KD = 9.6 nM) for the first time. Based on aptamer 6.9, we developed a fiber-optic evanescent wave (FOEW) biosensor. Inactivated SARS-CoV-2 and the Cy5.5-tagged short complementary strand competitively bound with the aptamer immobilized on the surface of the sensor. The detection of the inactivated SARS-CoV-2 virus was realized within six minutes with a limit of detection (LOD, S/N = 3) of 740 fg/mL. We also developed an electrochemical impedance aptasensor which exhibited an LOD of 5.1 fg/mL and high specificity. We further demonstrated that the LODs of the FOEW and electrochemical impedance aptasensors were, respectively, more than 1000 and 100,000 times lower than those of commercial colloidal gold test strips. We foresee that the facile aptamer isolation process and sensor design can be easily extended for the detection of other inactivated viruses.
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Affiliation(s)
- Can Xiao
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Nan Wang
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing 100048, China; (N.W.); (X.L.)
| | - Yuechao Zhao
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Xuemei Liu
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Hui Li
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Aixue Huang
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Lin Wang
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Xinhui Lou
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing 100048, China; (N.W.); (X.L.)
| | - Bo Gao
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
| | - Ningsheng Shao
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China; (C.X.); (Y.Z.); (X.L.); (H.L.); (A.H.); (L.W.)
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5
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Cao J, Zhang F, Chen H, Wu B, Yin J, Chenzhao C, Xiong W. A TSHR-Targeting Aptamer in Monocytes Correlating with Clinical Activity in TAO. Int J Nanomedicine 2024; 19:3577-3588. [PMID: 38650837 PMCID: PMC11033847 DOI: 10.2147/ijn.s446656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/28/2024] [Indexed: 04/25/2024] Open
Abstract
Background Manifestations of thyroid-associated ophthalmopathy (TAO) vary greatly. Few tools and indicators are available to assess TAO, restricting personalized diagnosis and treatment. Aim To identify an aptamer targeting thyroid-stimulating hormone receptor (TSHR) and utilize this aptamer to evaluate clinical activity in patients with TAO. Methods An aptamer targeting TSHR was developed by exponential enrichment and systematic evaluation of TSHR ligands. After truncation and optimization, the affinity, equilibrium dissociation constant, and serum stability of this aptamer were evaluated. The affinity of the TSHR-targeting aptamer to isolated fibrocytes was assessed, as was aptamer internalization by fibrocytes. The mechanism of binding was determined by molecular docking. The correlation between disease manifestations and the percentage of TSHR-positive cells was assessed by correlation analysis. Results The aptamer TSHR-21-42 was developed to bind to TSHR, with the equilibrium dissociation constant being 71.46 Kd. Isolated fibrocytes were shown to bind TSHR-21-42 through TSHR, with its affinity maintained at various temperatures and ion concentrations. TSHR-21-42 could compete with anti-TSHR antibody, both for binding site to TSHR and uptake by cells after binding. In addition, TSHR-21-42 could bind to leukocytes in peripheral blood, with this binding differing in patients with TAO and healthy control subjects. The percentage of TSHR-positive monocytes, as determined by binding of TSHR-21-42, correlated positively with clinical activity score in patients with TAO, indicating that TSHR-21-42 binding could assess the severity of TAO. Conclusion This aptamer targeting TSHR may be used to objectively assess disease activity in patients with TAO, by evaluating the percentages of TSHR positive cells in peripheral blood.
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Affiliation(s)
- Jiamin Cao
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
| | - Feng Zhang
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
| | - Haiyan Chen
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
| | - Bingxuan Wu
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
| | - Jiayang Yin
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
| | - Changci Chenzhao
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
| | - Wei Xiong
- Department of Ophthalmology, Central South University, Changsha City, People’s Republic of China
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6
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Zhou X, Cao Y, Huang X, Qiu S, Xiang X, Niu H, Chen L, Wang S, Lin Z, Zhang S. Screening and Application of DNA Aptamers for Heparin-Binding Protein. Molecules 2024; 29:1717. [PMID: 38675537 PMCID: PMC11051826 DOI: 10.3390/molecules29081717] [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: 03/07/2024] [Revised: 04/01/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Rapid detection of heparin-binding protein (HBP) is essential for timely intervention in sepsis cases. Current detection techniques are usually antibody-based immunological methods, which have certain problems, such as complexity and slow detection, and fall short in meeting the urgency of clinical needs. The application of an aptamer can address these concerns well. In this study, HBP-specific DNA aptamers were screened first. Among which, Apt-01, Apt-02, and Apt-13 had a high affinity for HBP, exhibiting impressive KD values of 3.42, 1.44, and 1.04 nmol/L, respectively. Then, the aptamer of HBP and its partially complementary primer probe were combined to form double-stranded DNA (dsDNA) and synthesize a circular DNA template. The template is complementary to the primer probe, but due to the presence of dsDNA, ExoIII cleaves C2-13 as an RCA primer probe, rendering the template unable to recognize the primer probe and preventing the RCA reaction from proceeding. When the target is present, it competes with the adapter for recognition and releases C2-13, exposing its 3' end. After initiating the RCA at room temperature and reacting with SYBR GreenII at 37 °C for 20 min, fluorescence changes can be observed and quantitatively analyzed at a 530 nm wavelength, achieving quantitative biological analysis. Apt-01 was used to develop a fluorescent biosensor for HBP detection, which exhibited a good linear range (0.01 nmol/L to 10 nmol/L) and detection limit (0.0056 nmol/L). This advancement holds the potential to lay a solid groundwork for pioneering sensitive and specific methods for HBP detection and to significantly enhance the diagnostic processes for sepsis.
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Affiliation(s)
- Xi Zhou
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Yingying Cao
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Xiaocui Huang
- Department of Science Research and Training, Fujian Institute of Education, Fuzhou 350001, China;
| | - Shuqian Qiu
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Xinran Xiang
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Huimin Niu
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Li Chen
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Shuiliang Wang
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
| | - Zhenyu Lin
- MOE Key Laboratory of Analysis and Detection for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Shenghang Zhang
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Teaching Hospital (the 900th Hospital), Fujian University of Traditional Chinese Medicine, Fuzhou 350025, China; (X.Z.); (Y.C.); (S.Q.); (X.X.); (H.N.); (L.C.); (S.W.)
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School, Fujian Medical University, Fuzhou 350025, China
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Kissmann AK, Bolotnikov G, Li R, Müller F, Xing H, Krämer M, Gottschalk KE, Andersson J, Weil T, Rosenau F. IMPATIENT-qPCR: monitoring SELEX success during in vitro aptamer evolution. Appl Microbiol Biotechnol 2024; 108:284. [PMID: 38573322 PMCID: PMC10995058 DOI: 10.1007/s00253-024-13085-7] [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: 11/08/2023] [Revised: 02/07/2024] [Accepted: 02/19/2024] [Indexed: 04/05/2024]
Abstract
SELEX (Systematic Evolution of Ligands by Exponential enrichment) processes aim on the evolution of high-affinity aptamers as binding entities in diagnostics and biosensing. Aptamers can represent game-changers as constituents of diagnostic assays for the management of instantly occurring infectious diseases or other health threats. Without in-process quality control measures SELEX suffers from low overall success rates. We present a quantitative PCR method for fast and easy quantification of aptamers bound to their targets. Simultaneous determination of melting temperatures (Tm) of each SELEX round delivers information on the evolutionary success via the correlation of increasing GC content and Tm alone with a round-wise increase of aptamer affinity to the respective target. Based on nine successful and published previous SELEX processes, in which the evolution/selection of aptamer affinity/specificity was demonstrated, we here show the functionality of the IMPATIENT-qPCR for polyclonal aptamer libraries and resulting individual aptamers. Based on the ease of this new evolution quality control, we hope to introduce it as a valuable tool to accelerate SELEX processes in general. IMPATIENT-qPCR SELEX success monitoring. Selection and evolution of high-affinity aptamers using SELEX technology with direct aptamer evolution monitoring using melting curve shifting analyses to higher Tm by quantitative PCR with fluorescence dye SYBR Green I. KEY POINTS: • Fast and easy analysis. • Universal applicability shown for a series of real successful projects.
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Affiliation(s)
- Ann-Kathrin Kissmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
- Max Planck Institute for Polymer Research Mainz, Ackermannweg 10, 55128, Mainz, Germany
| | - Grigory Bolotnikov
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Runliu Li
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Franziska Müller
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Hu Xing
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Markus Krämer
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Kay-E Gottschalk
- Institute of Experimental Physics, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Jakob Andersson
- AIT Austrian Institute of Technology GmbH, Giefinggasse 4, 1210, Vienna, Austria
| | - Tanja Weil
- Max Planck Institute for Polymer Research Mainz, Ackermannweg 10, 55128, Mainz, Germany
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
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8
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Chen X, Wang W, Ye T, Kang J, Wang Q, Yang W, Dai H, Wang K, Pan J. Lysosome-Specific Coumarin-Based Fluorescent Bioprobes for in Vivo Polarity Sensing and Cancer Treatment. Bioconjug Chem 2023; 34:1851-1860. [PMID: 37708446 DOI: 10.1021/acs.bioconjchem.3c00361] [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: 09/16/2023]
Abstract
About 90% of cancer deaths worldwide are caused by the spread of cancer cells from the primary tumor to distant organs (metastasis). Therefore, there is an urgent need for an early diagnosis and treatment before cancer metastasis occurs. Lysosomes have emerged as attractive targets for cancer diagnosis and treatment because polar defects in lysosomes can induce apoptosis and cell death. Coumarin is a known polar-sensitive dye with good biocompatibility; because of this, we constructed two fluorescent probes of coumarin derivatives with the "D-π-A" structure, CouN-1 and CouN-2, through three simple reactions. In molecular design, due to morpholine's prominent lysosomal targeting characteristics, it was used as both lysosomal targeting motifs and an electron donor (D), while coumarin was used as an electron acceptor (A). The experimental results strongly proved that CouN-1 and CouN-2 have a good linear relationship with the polarity change of Δf = 0.209-0.308. In addition, both in vitro and in vivo imaging results have shown that CouN-1 and CouN-2 can specifically identify and monitor tumor sites. In the cell uptake and apoptosis experiments, the two probes also showed a strong antiproliferation effect on cancer cells. All of these characteristics demonstrated the potential of these two polarity-sensitive biological probes, CouN-1 and CouN-2, in the diagnosis and treatment of cancer.
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Affiliation(s)
- Xian Chen
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Wenjing Wang
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Tangying Ye
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Jialu Kang
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Qianqiu Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Wei Yang
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Heshuang Dai
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Kai Wang
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Jie Pan
- College of Health Science and Engineering, Hubei University, Wuhan 430062, P. R. China
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9
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Li H, Yao S, Wang C, Bai C, Zhou P. Diverse applications and development of aptamer detection technology. ANAL SCI 2023; 39:1627-1641. [PMID: 37700097 DOI: 10.1007/s44211-023-00409-2] [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: 02/22/2023] [Accepted: 06/04/2023] [Indexed: 09/14/2023]
Abstract
Aptamers have received extensive attention in recent years because of their advantages of high specificity, high sensitivity and low immunogenicity. Aptamers can perform almost all functions of antibodies through the combination of spatial structure and target, which are called "chemical antibodies". At present, aptamers have been widely used in cell imaging, new drug development, disease treatment, microbial detection and other fields. Due to the diversity of modifications, aptamers can be combined with different detection technologies to construct aptasensors. This review focuses on the diversity of aptamers in the field of detection and the development of aptamer-based detection technology and proposes new challenges for aptamers in this field.
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Affiliation(s)
- Haozheng Li
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China
| | - Shibo Yao
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China
| | - Cui Wang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China
| | - Chenjun Bai
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China.
| | - Pingkun Zhou
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China.
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10
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Cao J, Zhang F, Xiong W. Discovery of Aptamers and the Acceleration of the Development of Targeting Research in Ophthalmology. Int J Nanomedicine 2023; 18:4421-4430. [PMID: 37551274 PMCID: PMC10404440 DOI: 10.2147/ijn.s418115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/19/2023] [Indexed: 08/09/2023] Open
Abstract
Aptamers are widely applied to diagnosis and therapy because of their targeting. However, the current progress of research into aptamers for the treatment of eye disorders has not been well-documented. The current literature on aptamers was reviewed in this study. Aptamer-related drugs and biochemical sensors have been evaluated for several eye disorders within the past decade; S58 targeting TGF-β receptor II and pegaptanib targeting vascular endothelial growth factor (VEGF) are used to prevent fibrosis after glaucoma filtration surgery. Anti-brain-derived neurotrophic factor aptamer has been used to diagnose glaucoma. The first approved aptamer drug (pegaptanib) has been used to inhibit angiogenesis in age-related macular degeneration (AMD) and diabetic retinopathy (DR), and its efficacy and safety have been demonstrated in clinical trials. Aptamers, including E10030, RBM-007, AS1411, and avacincaptad pegol, targeting other angiogenesis-related biomarkers have also been discovered and subjected to clinical trials. Aptamers, such as C promoter binding factor 1, CD44, and advanced end products in AMD and DR, targeting other signal pathway proteins have also been discovered for therapy, and biochemical sensors for early diagnosis have been developed based on aptamers targeting VEGF, connective tissue growth factor, and lipocalin 1. Aptamers used for early detection and treatment of ocular tumors were derived from other disease biomarkers, such as CD71, nucleolin, and high mobility group A. In this review, the development and application of aptamers in eye disorders in recent years are systematically discussed, which may inspire a new link between aptamers and eye disorders. The aptamer development trajectory also facilitates the discovery of the pathogenesis and therapeutic strategies for various eye disorders.
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Affiliation(s)
- Jiamin Cao
- Department of Ophthalmology, Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Feng Zhang
- Department of Ophthalmology, Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Wei Xiong
- Department of Ophthalmology, Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
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11
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Liu Y, Hu B, Pei X, Li J, Qi D, Xu Y, Ou H, Wu Y, Xue L, Huang JH, Wu E, Hu X. A Non-G-Quadruplex DNA Aptamer Targeting NCL for Diagnosis and Therapy in Bladder Cancer. Adv Healthc Mater 2023; 12:e2300791. [PMID: 37262080 DOI: 10.1002/adhm.202300791] [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: 03/26/2023] [Indexed: 06/03/2023]
Abstract
Bladder cancer (BC) is a highly aggressive malignant tumor affecting the urinary system, characterized by metastasis and a poor prognosis that often leads to limited therapeutic success. This study aims to develop a novel DNA aptamer for the diagnosis and treatment of BC using a tissue-based systematic evolution of ligands by an exponential enrichment (SELEX) process. By using SELEX, this work successfully generates a new aptamer named TB-5, which demonstrates a remarkable and specific affinity for nucleolin (NCL) in BC tissues and displays marked biocompatibility both in vitro and in vivo. Additionally, this work shows that NCL is a reliable tissue-specific biomarker in BC. Moreover, according to circular dichroism spectroscopy, TB-5 forms a non-G-quadruplex structure, distinguishing it from the current NCL-targeting aptamer AS1411, and exhibits a distinct binding region on NCL compared to AS1411. Notably, this study further reveals that TB-5 activates NCL function by promoting autophagy and suppressing the migration and invasion of BC cells, which occurs by disrupting mRNA transcription processes. These findings highlight the critical role of NCL in the pathological examination of BC and warrant more comprehensive investigations on anti-NCL aptamers in BC imaging and treatment.
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Affiliation(s)
- Yunyi Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Bei Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Xiaming Pei
- Department of Urology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine. Changsha, Hunan, 410013, China
| | - Juan Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Dan Qi
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA
| | - Yuxi Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Hailong Ou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Yatao Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Lei Xue
- Department of Pathology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine. Changsha, Hunan, 410013, China
| | - Jason H Huang
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA
- Department of Medical Education, Texas A&M University School of Medicine, College Station, TX, 77843, USA
| | - Erxi Wu
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA
- Department of Medical Education, Texas A&M University School of Medicine, College Station, TX, 77843, USA
- Department of Pharmaceutical Sciences, Texas A&M University School of Pharmacy, College Station, TX, 77843, USA
- LIVESTRONG Cancer Institutes and Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Xiaoxiao Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Molecular Science and Biomedicine Laboratory and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
- Research Institute of Hunan University in Chongqing, Chongqing, 401120, China
- Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, 518000, China
- Hunan Yonghe-sun Biotechnology Co. Ltd., Changsha, Hunan, 410082, China
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12
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Li Y, Tam WW, Yu Y, Zhuo Z, Xue Z, Tsang C, Qiao X, Wang X, Wang W, Li Y, Tu Y, Gao Y. The application of Aptamer in biomarker discovery. Biomark Res 2023; 11:70. [PMID: 37468977 DOI: 10.1186/s40364-023-00510-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/29/2023] [Indexed: 07/21/2023] Open
Abstract
Biomarkers are detectable molecules that can reflect specific physiological states of cells, organs, and organisms and therefore be regarded as indicators for specific diseases. And the discovery of biomarkers plays an essential role in cancer management from the initial diagnosis to the final treatment regime. Practically, reliable clinical biomarkers are still limited, restricted by the suboptimal methods in biomarker discovery. Nucleic acid aptamers nowadays could be used as a powerful tool in the discovery of protein biomarkers. Nucleic acid aptamers are single-strand oligonucleotides that can specifically bind to various targets with high affinity. As artificial ssDNA or RNA, aptamers possess unique advantages compared to conventional antibodies. They can be flexible in design, low immunogenicity, relative chemical/thermos stability, as well as modifying convenience. Several SELEX (Systematic Evolution of Ligands by Exponential Enrichment) based methods have been generated recently to construct aptamers for discovering new biomarkers in different cell locations. Secretome SELEX-based aptamers selection can facilitate the identification of secreted protein biomarkers. The aptamers developed by cell-SELEX can be used to unveil those biomarkers presented on the cell surface. The aptamers from tissue-SELEX could target intracellular biomarkers. And as a multiplexed protein biomarker detection technology, aptamer-based SOMAScan can analyze thousands of proteins in a single run. In this review, we will introduce the principle and workflow of variations of SELEX-based methods, including secretome SELEX, ADAPT, Cell-SELEX and tissue SELEX. Another powerful proteome analyzing tool, SOMAScan, will also be covered. In the second half of this review, how these methods accelerate biomarker discovery in various diseases, including cardiovascular diseases, cancer and neurodegenerative diseases, will be discussed.
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Affiliation(s)
- Yongshu Li
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, China.
- Shenzhen Institute for Technology Innovation, National Institute of Metrology, Shenzhen, China.
| | - Winnie Wailing Tam
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases (TMBJ), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Yuanyuan Yu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases (TMBJ), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Zhenjian Zhuo
- State Key Laboratory of Chemical Oncogenomic, Peking University Shenzhen Graduate School, Shenzhen, China
- Laboratory Animal Center, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Zhichao Xue
- Shenzhen Institute for Technology Innovation, National Institute of Metrology, Shenzhen, China
| | - Chiman Tsang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaoting Qiao
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, China
| | - Xiaokang Wang
- Department of Pharmacy, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Weijing Wang
- Shantou University Medical College, Shantou, China
| | - Yongyi Li
- Laboratory Animal Center, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Yanyang Tu
- Research Center, Huizhou Central People's Hospital, Guangdong Medical University, Huizhou City, China.
| | - Yunhua Gao
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, China.
- Shenzhen Institute for Technology Innovation, National Institute of Metrology, Shenzhen, China.
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Ai L, Jiang X, Zhang K, Cui C, Liu B, Tan W. Tools and techniques for the discovery of therapeutic aptamers: recent advances. Expert Opin Drug Discov 2023; 18:1393-1411. [PMID: 37840268 DOI: 10.1080/17460441.2023.2264187] [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: 03/15/2023] [Accepted: 09/25/2023] [Indexed: 10/17/2023]
Abstract
INTRODUCTION The pursuit of novel therapeutic agents for serious diseases such as cancer has been a global endeavor. Aptamers characteristic of high affinity, programmability, low immunogenicity, and rapid permeability hold great promise for the treatment of diseases. Yet obtaining the approval for therapeutic aptamers remains challenging. Consequently, researchers are increasingly devoted to exploring innovative strategies and technologies to advance the development of these therapeutic aptamers. AREAS COVERED The authors provide a comprehensive summary of the recent progress of the SELEX (Systematic Evolution of Ligands by EXponential enrichment) technique, and how the integration of modern tools has facilitated the identification of therapeutic aptamers. Additionally, the engineering of aptamers to enhance their functional attributes, such as inhibiting and targeting, is discussed, demonstrating the potential to broaden their scope of utility. EXPERT OPINION The grand potential of aptamers and the insufficient development of relevant drugs have spurred countless efforts for stimulating their discovery and application in the therapeutic field. While SELEX techniques have undergone significant developments with the aid of advanced analysis instruments and ingeniously updated aptameric engineering strategies, several challenges still impede their clinical translation. A key challenge lies in the insufficient understanding of binding conformation and susceptibility to degradation under physiological conditions. Despite the hurdles, our opinion is optimistic. With continued progress in overcoming these obstacles, the widespread utilization of aptamers for clinical therapy is envisioned to become a reality soon.
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Affiliation(s)
- Lili Ai
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, The People's Republic of China
| | - Xinyi Jiang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, The People's Republic of China
| | - Kejing Zhang
- Department of Geriatrics and Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, The People's Republic of China
- The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, The People's Republic of China
| | - Cheng Cui
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, The People's Republic of China
| | - Bo Liu
- Department of Geriatrics and Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, The People's Republic of China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, The People's Republic of China
- The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, The People's Republic of China
- Institute of Molecular Medicine (IMM), Renji Hospital, School of Medicine and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, The People's Republic of China
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Lv QY, Cui HF, Song X. Aptamer-based technology for gastric cancer theranostics. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2142-2153. [PMID: 37114324 DOI: 10.1039/d3ay00415e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Gastric cancer is one of the most common causes of cancer death worldwide. This cancer exhibits high molecular and phenotype heterogeneity. The overall survival rate for gastric cancer is very low because it is always diagnosed in the advanced stages. Therefore, early detection and treatment are of great significance. Currently, biomedical studies have tapped the potential clinical applicability of aptamer-based technology for gastric cancer diagnosis and targeted therapy. Herein, we summarize the enrichment and evolution of relevant aptamers, followed by documentation of the recent developments in aptamer-based techniques for early diagnosis and precision therapy for gastric cancers.
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Affiliation(s)
- Qi-Yan Lv
- School of Life Sciences, Zhengzhou University, 100# Science Avenue, Zhengzhou 450001, People's Republic of China.
| | - Hui-Fang Cui
- School of Life Sciences, Zhengzhou University, 100# Science Avenue, Zhengzhou 450001, People's Republic of China.
| | - Xiaojie Song
- School of Life Sciences, Zhengzhou University, 100# Science Avenue, Zhengzhou 450001, People's Republic of China.
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Kraemer M, Bellion M, Kissmann AK, Herberger T, Synatschke CV, Bozdogan A, Andersson J, Rodriguez A, Ständker L, Wiese S, Stenger S, Spellerberg B, Gottschalk KE, Cetinkaya A, Pietrasik J, Weil T, Rosenau F. Aptamers as Novel Binding Molecules on an Antimicrobial Peptide-Armored Composite Hydrogel Wound Dressing for Specific Removal and Efficient Eradication of Pseudomonas aeruginosa. Int J Mol Sci 2023; 24:ijms24054800. [PMID: 36902270 PMCID: PMC10002764 DOI: 10.3390/ijms24054800] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/15/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
Here we present for the first time a potential wound dressing material implementing aptamers as binding entities to remove pathogenic cells from newly contaminated surfaces of wound matrix-mimicking collagen gels. The model pathogen in this study was the Gram-negative opportunistic bacterium Pseudomonas aeruginosa, which represents a considerable health threat in hospital environments as a cause of severe infections of burn or post-surgery wounds. A two-layered hydrogel composite material was constructed based on an established eight-membered focused anti-P. aeruginosa polyclonal aptamer library, which was chemically crosslinked to the material surface to form a trapping zone for efficient binding of the pathogen. A drug-loaded zone of the composite released the C14R antimicrobial peptide to deliver it directly to the bound pathogenic cells. We demonstrate that this material combining aptamer-mediated affinity and peptide-dependent pathogen eradication can quantitatively remove bacterial cells from the "wound" surface, and we show that the surface-trapped bacteria are completely killed. The drug delivery function of the composite thus represents an extra safeguarding property and thus probably one of the most important additional advances of a next-generation or smart wound dressing ensuring the complete removal and/or eradication of the pathogen of a freshly infected wound.
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Affiliation(s)
- Markus Kraemer
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Magali Bellion
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Ann-Kathrin Kissmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
- Correspondence: (A.-K.K.); (F.R.)
| | - Tilmann Herberger
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
| | | | - Anil Bozdogan
- Center for Electrochemical Surface Technology (CEST), Austrian Institute of Technology, 3420 Tulln, Austria
- Austrian Institute of Technology, Giefinggasse 4, 1210 Vienna, Austria
| | - Jakob Andersson
- Austrian Institute of Technology, Giefinggasse 4, 1210 Vienna, Austria
| | - Armando Rodriguez
- Core Facility for Functional Peptidomics, Ulm Peptide Pharmaceuticals (U-PEP), Faculty of Medicine, Ulm University, 89081 Ulm, Germany
- Core Unit of Mass Spectrometry and Proteomics, Faculty of Medicine, Ulm University, 89081 Ulm, Germany
| | - Ludger Ständker
- Core Unit of Mass Spectrometry and Proteomics, Faculty of Medicine, Ulm University, 89081 Ulm, Germany
| | - Sebastien Wiese
- Core Unit of Mass Spectrometry and Proteomics, Faculty of Medicine, Ulm University, 89081 Ulm, Germany
| | - Steffen Stenger
- Institute for Medical Microbiology and Hygiene, University Hospital Ulm, 89081 Ulm, Germany
| | - Barbara Spellerberg
- Institute for Medical Microbiology and Hygiene, University Hospital Ulm, 89081 Ulm, Germany
| | - Kay-Eberhard Gottschalk
- Institute of Experimental Physics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Ahmet Cetinkaya
- Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland
| | - Joanna Pietrasik
- Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland
| | - Tanja Weil
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
- Correspondence: (A.-K.K.); (F.R.)
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Sung TC, Wang T, Liu Q, Ling QD, Subbiah SK, Renuka RR, Hsu ST, Umezawa A, Higuchi A. Cell-binding peptides on the material surface guide stem cell fate of adhesion, proliferation and differentiation. J Mater Chem B 2023; 11:1389-1415. [PMID: 36727243 DOI: 10.1039/d2tb02601e] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Human cells, especially stem cells, need to communicate and interact with extracellular matrix (ECM) proteins, which not only serve as structural components but also guide and support cell fate and properties such as cell adhesion, proliferation, survival and differentiation. The binding of the cells with ECM proteins or ECM-derived peptides via cell adhesion receptors such as integrins activates several signaling pathways that determine the cell fate, morphological change, proliferation and differentiation. The development of synthetic ECM protein-derived peptides that mimic the biological and biochemical functions of natural ECM proteins will benefit academic and clinical application. Peptides derived from or inspired by specific ECM proteins can act as agonists of each ECM protein receptor. Given that most ECM proteins function in cell adhesion via integrin receptors, many peptides have been developed that bind to specific integrin receptors. In this review, we discuss the peptide sequence, immobilization design, reaction method, and functions of several ECM protein-derived peptides. Various peptide sequences derived from mainly ECM proteins, which are used for coating or grafting on dishes, scaffolds, hydrogels, implants or nanofibers, have been developed to improve the adhesion, proliferation or differentiation of stem cells and to culture differentiated cells. This review article will help to inform the optimal choice of ECM protein-derived peptides for the development of scaffolds, implants, hydrogels, nanofibers and 2D cell culture dishes to regulate the proliferation and direct the differentiation of stem cells into specific lineages.
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Affiliation(s)
- Tzu-Cheng Sung
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, No. 270, Xueyuan Road, Wenzhou, Zhejiang, 325027, China.
| | - Ting Wang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, No. 270, Xueyuan Road, Wenzhou, Zhejiang, 325027, China.
| | - Qian Liu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, No. 270, Xueyuan Road, Wenzhou, Zhejiang, 325027, China.
| | - Qing-Dong Ling
- Cathay Medical Research Institute, Cathay General Hospital, No. 32, Ln 160, Jian-Cheng Road, Hsi-Chi City, Taipei 221, Taiwan
| | - Suresh Kumar Subbiah
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, 173, Agaram Road, Tambaram East, Chennai-73, 600078, India
| | - Remya Rajan Renuka
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, 173, Agaram Road, Tambaram East, Chennai-73, 600078, India
| | - Shih-Tien Hsu
- Department of Internal Medicine, Taiwan Landseed Hospital, 77 Kuangtai Road, Pingjen City, Tao-Yuan County 32405, Taiwan
| | - Akihiro Umezawa
- Department of Reproduction, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan
| | - Akon Higuchi
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, No. 270, Xueyuan Road, Wenzhou, Zhejiang, 325027, China. .,Department of Chemical and Materials Engineering, National Central University, No. 300, Jhongda RD., Jhongli, Taoyuan, 32001, Taiwan. .,R & D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung-Bei Rd., Jhongli, Taoyuan 320, Taiwan
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Kulabhusan PK, Pishva P, Çapkın E, Tambe P, Yüce M. Aptamer-based Emerging Tools for Viral Biomarker Detection: A Focus on SARS-CoV-2. Curr Med Chem 2023; 30:910-934. [PMID: 35156569 DOI: 10.2174/1568009622666220214101059] [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: 06/22/2021] [Revised: 11/11/2021] [Accepted: 12/19/2021] [Indexed: 11/22/2022]
Abstract
Viral infections can cause fatal illnesses to humans as well as animals. Early detection of viruses is therefore crucial to provide effective treatment to patients. Recently, the Covid-19 pandemic has undoubtedly given an alarming call to develop rapid and sensitive detection platforms. The viral diagnostic tools need to be fast, affordable, and easy to operate with high sensitivity and specificity equivalent or superior to the currently used diagnostic methods. The present detection methods include direct detection of viral antigens or measuring the response of antibodies to viral infections. However, the sensitivity and quantification of the virus are still a significant challenge. Detection tools employing synthetic binding molecules like aptamers may provide several advantages over the conventional methods that use antibodies in the assay format. Aptamers are highly stable and tailorable molecules and are therefore ideal for detection and chemical sensing applications. This review article discusses various advances made in aptamer-based viral detection platforms, including electrochemical, optical, and colorimetric methods to detect viruses, specifically SARS-Cov-2. Considering the several advantages, aptamers could be game-changing in designing high-throughput biosensors for viruses and other biomedical applications in the future.
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Affiliation(s)
- Prabir Kumar Kulabhusan
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Parsa Pishva
- Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, 34956, Turkey
| | - Eda Çapkın
- Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, 34956, Turkey
| | - Prajakta Tambe
- Wellcome-- Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | - Meral Yüce
- Sabanci University, SUNUM Nanotechnology Research, and Application Centre, Istanbul, 34956, Turkey
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He J, Duan Q, Ran C, Fu T, Liu Y, Tan W. Recent progress of aptamer‒drug conjugates in cancer therapy. Acta Pharm Sin B 2023; 13:1358-1370. [PMID: 37139427 PMCID: PMC10150127 DOI: 10.1016/j.apsb.2023.01.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/18/2022] [Accepted: 12/15/2022] [Indexed: 01/28/2023] Open
Abstract
Aptamers are single-stranded DNA or RNA sequences that can specifically bind with the target protein or molecule via specific secondary structures. Compared to antibody-drug conjugates (ADC), aptamer‒drug conjugate (ApDC) is also an efficient, targeted drug for cancer therapy with a smaller size, higher chemical stability, lower immunogenicity, faster tissue penetration, and facile engineering. Despite all these advantages, several key factors have delayed the clinical translation of ApDC, such as in vivo off-target effects and potential safety issues. In this review, we highlight the most recent progress in the development of ApDC and discuss solutions to the problems noted above.
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Affiliation(s)
- Jiaxuan He
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Qiao Duan
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
- Institute of Molecular Medicine (IMM), Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chunyan Ran
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Ting Fu
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha 410082, China
| | - Yuan Liu
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
- Corresponding authors.
| | - Weihong Tan
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha 410082, China
- Institute of Molecular Medicine (IMM), Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Corresponding authors.
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19
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Simultaneous detection of four specific DNAs fragments based on two-dimensional bimetallic MOF nanosheets. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Development and characterization of DNA aptamer against Retinoblastoma by Cell-SELEX. Sci Rep 2022; 12:16178. [PMID: 36171412 PMCID: PMC9519959 DOI: 10.1038/s41598-022-20660-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/16/2022] [Indexed: 12/02/2022] Open
Abstract
Retinoblastoma (RB) is the most common paediatric intraocular tumour. The management of RB has improved the survival and vision with recent advances in the treatment. Improved therapeutic approaches focussing on targeting tumours and minimizing the treatment-associated side effects are being developed. In this study, we generated a ssDNA aptamer against RB by cell-SELEX and high-throughput sequencing using Weri-RB1 cell line as the target, and Muller glial cell line Mio-M1 as the control. Three aptamers were selected based on the number of repetitions in NGS and phylogenetic relationship and evaluated by flow cytometry to assess their binding affinity and selectivity. The dissociation constant, Kd values of three selected aptamers were found to be in the nanomolar range. Aptamer VRF-CSRB-01 with the best binding affinity and a Kd value of 49.41 ± 7.87 nM was further characterized. The proteinase and temperature treatment indicated that VRF-CSRB-01 targets surface proteins, and has a good binding affinity and excellent selectivity under physiological conditions. The aptamer VRF-CSRB-01 was stable over 72 h in serum and 96 h in cerebral spinal fluid and vitreous. With the high affinity, specificity, stability and specific recognition of clinical RB tumours, VRF-CSRB-01 aptamer holds potential for application in diagnosis and targeting RB.
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21
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Kneißle K, Krämer M, Kissmann AK, Xing H, Müller F, Amann V, Noschka R, Gottschalk KE, Bozdogan A, Andersson J, Weil T, Spellerberg B, Stenger S, Rosenau F. A Polyclonal SELEX Aptamer Library Allows Differentiation of Candida albicans, C. auris and C. parapsilosis Cells from Human Dermal Fibroblasts. J Fungi (Basel) 2022; 8:jof8080856. [PMID: 36012844 PMCID: PMC9410195 DOI: 10.3390/jof8080856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/09/2022] [Accepted: 08/12/2022] [Indexed: 11/16/2022] Open
Abstract
Easy and reliable identification of pathogenic species such as yeasts, emerging as problematic microbes originating from the genus Candida, is a task in the management and treatment of infections, especially in hospitals and other healthcare environments. Aptamers are seizing an already indispensable role in different sensing applications as binding entities with almost arbitrarily tunable specificities and optimizable affinities. Here, we describe a polyclonal SELEX library that not only can specifically recognize and fluorescently label Candida cells, but is also capable to differentiate C. albicans, C. auris and C. parapsilosis cells in flow-cytometry, fluorometric microtiter plate assays and fluorescence microscopy from human cells, exemplified here by human dermal fibroblasts. This offers the opportunity to develop diagnostic tools based on this library. Moreover, these specific and robust affinity molecules could also serve in the future as potent binding entities on biomaterials and as constituents of technical devices and will thus open avenues for the development of cost-effective and easily accessible next generations of electronic biosensors in clinical diagnostics and novel materials for the specific removal of pathogenic cells from human bio-samples.
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Affiliation(s)
- Katharina Kneißle
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Markus Krämer
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Ann-Kathrin Kissmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Max Planck Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
- Correspondence: (A.-K.K.); (F.R.)
| | - Hu Xing
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Franziska Müller
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Valerie Amann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Reiner Noschka
- Institute of Medical Microbiology and Hygiene, University Clinic of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Kay-Eberhard Gottschalk
- Institute of Experimental Physics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Anil Bozdogan
- Center for Electrochemical Surface Technology (CEST), Austrian Institute of Technology, 3420 Tulln, Austria
- AIT Austrian Institute of Technology, Biosensor Technologies, Giefinggasse 4, 1210 Vienna, Austria
| | - Jakob Andersson
- AIT Austrian Institute of Technology, Biosensor Technologies, Giefinggasse 4, 1210 Vienna, Austria
| | - Tanja Weil
- Max Planck Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
| | - Barbara Spellerberg
- Institute of Medical Microbiology and Hygiene, University Clinic of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Steffen Stenger
- Institute of Medical Microbiology and Hygiene, University Clinic of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Max Planck Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
- Correspondence: (A.-K.K.); (F.R.)
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22
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A Polyclonal Aptamer Library for the Specific Binding of the Gut Bacterium Roseburia intestinalis in Mixtures with Other Gut Microbiome Bacteria and Human Stool Samples. Int J Mol Sci 2022; 23:ijms23147744. [PMID: 35887092 PMCID: PMC9317077 DOI: 10.3390/ijms23147744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 02/07/2023] Open
Abstract
Roseburia intestinalis has received attention as a potential probiotic bacterium. Recent studies have demonstrated that changes in its intestinal abundance can cause various diseases, such as obesity, enteritis and atherosclerosis. Probiotic administration or fecal transplantation alter the structure of the intestinal flora, offering possibilities for the prevention and treatment of these diseases. However, current monitoring methods, such as 16S rRNA sequencing, are complex and costly and require specialized personnel to perform the tests, making it difficult to continuously monitor patients during treatment. Hence, the rapid and cost-effective quantification of intestinal bacteria has become an urgent problem to be solved. Aptamers are of emerging interest because their stability, low immunogenicity and ease of modification are attractive properties for a variety of applications. We report a FluCell-SELEX polyclonal aptamer library specific for R. intestinalis isolated after seven evolution rounds, that can bind and label this organism for fluorescence microscopy and binding assays. Moreover, R. intestinalis can be distinguished from other major intestinal bacteria in complex defined mixtures and in human stool samples. We believe that this preliminary evidence opens new avenues towards aptamer-based electronic biosensors as new powerful and inexpensive diagnostic tools for the relative quantitative monitoring of R. intestinalis in gut microbiomes.
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23
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Li L, Wang J, Jiang H, Wen X, Yang M, Li S, Guo Q, Wang K. DNA tetrahedron-based split aptamer probes for reliable imaging of ATP in living cells. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Screening and Specificity Analysis of Aptamer in Infiltrating Ductal Carcinoma of Breast. ChemistrySelect 2022. [DOI: 10.1002/slct.202200070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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25
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Research progress of whole-cell-SELEX selection and the application of cell-targeting aptamer. Mol Biol Rep 2022; 49:7979-7993. [PMID: 35274201 DOI: 10.1007/s11033-022-07317-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/02/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Aptamers refer to the artificially synthesized nucleic acid sequences (DNA/RNA) that can bind to a wide range of targets with high affinity and specificity, which are generally generated from systematic evolution of ligands by exponential enrichment (SELEX). As a novel method of aptamers screening, whole-cell-SELEX (WC-SELEX) has gained more and more attention in many fields such as biomedicine, analytical chemistry, and molecular diagnostics due to its ability to screen multiple potential aptamers without knowing the detailed structural information of target molecules. METHODS AND RESULTS In recent years, with the deepening of research on application of aptamers, the traditional WC-SELEX cannot meet the practical application because of long experimental period, complicated operation process and low specificity, etc. Therefore, the development of more efficient methods for screening aptamer is always on the road. This paper summarizes the current research status of WC-SELEX for bacteria, parasites and animal cells, and reviews the latest advances of WC-SELEX techniques that are dependent on novel instruments, materials and microelectronics, including fluorescence-activated cell sorting-assisted SELEX, three-dimensional assisted WC-SELEX, and microfluidic chip system-assisted WC-SELEX. In addition, the application of aptamers targeting cells was discussed. CONCLUSION Taken together, this review is aimed at providing a reference for WC-SELEX selection and application of aptamer targeting cells.
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26
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Lu Q, Liu Y, Liu Q, Liu J, Yang Q, Tang J, Meng Z, Su Q, Li S, Luo Y. Visual detection of aflatoxin B1 and zearalenone via activating a new catalytic reaction of “naked” DNAzyme. RSC Adv 2022; 12:32102-32109. [DOI: 10.1039/d2ra05683f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2022] Open
Abstract
It was found for the first time that the catalytic activity of “naked” DNAzyme can be modulated by aflatoxins and zearalenone to generate different color changes, which could be applied to the visual detection for the above two analytes.
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Affiliation(s)
- Qinrui Lu
- Medical Imaging Key Laboratory of Sichuan Province, North Sichuan Medical College, Nanchong 637000, P. R. China
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Yue Liu
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Qiao Liu
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Jun Liu
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Qin Yang
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Jiancai Tang
- Department of Basic Medical Sciences, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Zhijun Meng
- Medical Imaging Key Laboratory of Sichuan Province, North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Qiang Su
- Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong Central Hospital, Nanchong 637000, P. R. China
- Nanchong Key Laboratory of Individualized Drug Therapy, Nanchong 637000, P. R. China
| | - Shengmao Li
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
| | - Yingping Luo
- Medical Imaging Key Laboratory of Sichuan Province, North Sichuan Medical College, Nanchong 637000, P. R. China
- Department of Pharmacology, North Sichuan Medical College, Nanchong 637100, P. R. China
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