1
|
Moreira L, Guimarães NM, Santos RS, Loureiro JA, Pereira MDC, Azevedo NF. Oligonucleotide probes for imaging and diagnosis of bacterial infections. Crit Rev Biotechnol 2024:1-20. [PMID: 38830823 DOI: 10.1080/07388551.2024.2344574] [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: 02/15/2023] [Accepted: 06/17/2023] [Indexed: 06/05/2024]
Abstract
The rise of infectious diseases as a public health concern has necessitated the development of rapid and precise diagnostic methods. Imaging techniques like nuclear and optical imaging provide the ability to diagnose infectious diseases within the body, eliminating delays caused by sampling and pre-enrichments of clinical samples and offering spatial information that can aid in a more informed diagnosis. Traditional molecular probes are typically created to image infected tissue without accurately identifying the pathogen. In contrast, oligonucleotides can be tailored to target specific RNA sequences, allowing for the identification of pathogens, and even generating antibiotic susceptibility profiles by focusing on drug resistance genes. Despite the benefits that nucleic acid mimics (NAMs) have provided in terms of stabilizing oligonucleotides, the inadequate delivery of these relatively large molecules into the cytoplasm of bacteria remains a challenge for widespread use of this technology. This review summarizes the key advancements in the field of oligonucleotide probes for in vivo imaging, highlighting the most promising delivery systems described in the literature for developing optical imaging through in vivo hybridization.
Collapse
Affiliation(s)
- Luís Moreira
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Nuno Miguel Guimarães
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Rita Sobral Santos
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Joana Angélica Loureiro
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Maria do Carmo Pereira
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Nuno Filipe Azevedo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| |
Collapse
|
2
|
Sultana A, Geethakumari AM, Islam Z, Kolatkar PR, Biswas KH. BRET-based biosensors for SARS-CoV-2 oligonucleotide detection. Front Bioeng Biotechnol 2024; 12:1353479. [PMID: 38887615 PMCID: PMC11181354 DOI: 10.3389/fbioe.2024.1353479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 05/09/2024] [Indexed: 06/20/2024] Open
Abstract
The need for the early detection of emerging pathogenic viruses and their newer variants has driven the urgent demand for developing point-of-care diagnostic tools. Although nucleic acid-based methods such as reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and loop-mediated isothermal amplification (LAMP) have been developed, a more facile and robust platform is still required. To address this need, as a proof-of-principle study, we engineered a prototype-the versatile, sensitive, rapid, and cost-effective bioluminescence resonance energy transfer (BRET)-based biosensor for oligonucleotide detection (BioOD). Specifically, we designed BioODs against the SARS-CoV-2 parental (Wuhan strain) and B.1.617.2 Delta variant through the conjugation of specific, fluorescently modified molecular beacons (sensor module) through a complementary oligonucleotide handle DNA functionalized with the NanoLuc (NLuc) luciferase protein such that the dissolution of the molecular beacon loop upon the binding of the viral oligonucleotide will result in a decrease in BRET efficiency and, thus, a change in the bioluminescence spectra. Following the assembly of the BioODs, we determined their kinetics response, affinity for variant-specific oligonucleotides, and specificity, and found them to be rapid and highly specific. Furthermore, the decrease in BRET efficiency of the BioODs in the presence of viral oligonucleotides can be detected as a change in color in cell phone camera images. We envisage that the BioODs developed here will find application in detecting viral infections with variant specificity in a point-of-care-testing format, thus aiding in large-scale viral infection surveillance.
Collapse
Affiliation(s)
- Asfia Sultana
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
| | - Anupriya M. Geethakumari
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
| | - Zeyaul Islam
- Diabetes Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
| | - Prasanna R. Kolatkar
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
- Diabetes Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
| | - Kabir H. Biswas
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
| |
Collapse
|
3
|
Yadavalli HC, Park S, Kim Y, Nagda R, Kim TH, Han MK, Jung IL, Bhang YJ, Yang WH, Dalgaard LT, Yang SW, Shah P. Tailed-Hoogsteen Triplex DNA Silver Nanoclusters Emit Red Fluorescence upon Target miRNA Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2306793. [PMID: 37967352 DOI: 10.1002/smll.202306793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/22/2023] [Indexed: 11/17/2023]
Abstract
MicroRNAs (miRNAs) are small RNA molecules, typically 21-22 nucleotides in size, which play a crucial role in regulating gene expression in most eukaryotes. Their significance in various biological processes and disease pathogenesis has led to considerable interest in their potential as biomarkers for diagnosis and therapeutic applications. In this study, a novel method for sensing target miRNAs using Tailed-Hoogsteen triplex DNA-encapsulated Silver Nanoclusters (DNA/AgNCs) is introduced. Upon hybridization of a miRNA with the tail, the Tailed-Hoogsteen triplex DNA/AgNCs exhibit a pronounced red fluorescence, effectively turning on the signal. It is successfully demonstrated that this miRNA sensor not only recognized target miRNAs in total RNA extracted from cells but also visualized target miRNAs when introduced into live cells, highlighting the advantages of the turn-on mechanism. Furthermore, through gel-fluorescence assays and small-angle X-ray scattering (SAXS) analysis, the turn-on mechanism is elucidated, revealing that the Tailed-Hoogsteen triplex DNA/AgNCs undergo a structural transition from a monomer to a dimer upon sensing the target miRNA. Overall, the findings suggest that Tailed-Hoogsteen triplex DNA/AgNCs hold great promise as practical sensors for small RNAs in both in vitro and cell imaging applications.
Collapse
Affiliation(s)
- Hari Chandana Yadavalli
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sooyeon Park
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yeolhoe Kim
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Riddhi Nagda
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Tae-Hwan Kim
- Department of Quantum System Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Min Kyun Han
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Il Lae Jung
- Department of Radiation Biology, Environmental Radiation Research Group, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of Korea
| | - Yong Joo Bhang
- Xenohelix Research Institute, BT Centre 305, 56 Songdogwahak-ro Yeonsugu, Incheon, 21984, Republic of Korea
| | - Won Ho Yang
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Louise Torp Dalgaard
- Department of Science and Environment, Roskilde University, Roskilde, 4000, Denmark
| | - Seong Wook Yang
- Department of Systems Biology, Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Pratik Shah
- Department of Science and Environment, Roskilde University, Roskilde, 4000, Denmark
| |
Collapse
|
4
|
Lu Y, Li X, Liu Y, Li J, Chen Z, Meng X, Li W, Fang J. Novel Molecular Aptamer Beacon for the Specific Simultaneous Analysis of Circulating Tumor Cells and Exosomes of Colorectal Cancer Patients. Anal Chem 2023; 95:1251-1261. [PMID: 36583760 DOI: 10.1021/acs.analchem.2c04017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Liquid biopsy provides non-invasive and real-time detection for cancer diagnosis, but the lack of specific markers targeted to liquid biopsy components, such as circulating tumor cells (CTCs) and exosomes, has impeded its effective utilization in clinical settings. W3 is an aptamer, and its target has been previously demonstrated to be a predictor of colorectal cancer (CRC) metastasis. Herein, we developed a W3-based molecular beacon (MAB-W3-3G) to specifically detect CTCs and exosomes derived from CRC patients by modifying the W3 sequence and adding a fluorescent group FAM at the 5' end and a quencher group BHQ1 at the 3' end, resulting in a detectable green fluorescence only in the presence of the target. MAB-W3-3G retained features similar to those of the original W3, including high specificity and affinity for metastatic CRC cells, as well as excellent plasma stability. Notably, W3 target-positive CTCs were visualized, positive exosomes were quantified in CRC patients' whole blood without any sample pretreatment, and both detections could be finished in one step without any routine washing procedures. For CRC, the W3 target-positive CTC enumeration in metastasis was higher than that in non-metastasis (p < 0.01), and the quantitation of positive exosomes was correlated with CRC patients (p < 0.0001). Moreover, the MAB-W3-3G-based simultaneous detection of CTCs and exosomes was proven to have the potential for more precise clinical diagnosis. In conclusion, MAB-W3-3G could detect CTCs and exosomes in the blood samples of tumor patients with simple manipulation, rapid analysis, and high specificity, providing an effective liquid biopsy tool for the prediction of CRC.
Collapse
Affiliation(s)
- Yanbing Lu
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, PR China
| | - Xin Li
- Department of Anesthesiology, Cancer Hospital of China Medical University, Shenyang 110042, PR China
| | - Yun Liu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, PR China
| | - Jiabin Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, PR China
| | - Zhezhou Chen
- Department of Clinical Laboratory, Shenyang First People's Hospital, Shenyang 110041, PR China
| | - Xianmeng Meng
- Department of Pathology and Clinical Laboratory, Liaoning Provincial Corps Hospital of Chinese People's Armed Police Forces, Shenyang 110034, PR China
| | - Wanming Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, PR China
| | - Jin Fang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, PR China
| |
Collapse
|
5
|
Sun P, Zou W. Research progress of live-cell RNA imaging techniques. Zhejiang Da Xue Xue Bao Yi Xue Ban 2022; 51:362-372. [PMID: 36207827 PMCID: PMC9511491 DOI: 10.3724/zdxbyxb-2022-0017] [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: 01/23/2022] [Accepted: 04/12/2022] [Indexed: 06/16/2023]
Abstract
RNA molecules play diverse roles in many physiological and pathological processes as they interact with various nucleic acids and proteins. The various biological processes of RNA are highly dynamic. Tracking RNA dynamics in living cells is crucial for a better understanding of the spatiotemporal control of gene expression and the regulatory roles of RNA. Genetically encoded RNA-tagging systems include MS2/MCP, PP7/PCP, boxB/λN22 and CRISPR-Cas. The MS2/MCP system is the most widely applied, and it has the advantages of stable binding and high signal-to-noise ratio, while the realization of RNA imaging requires gene editing of the target RNA, which may change the characteristics of the target RNA. Recently developed CRISPR-dCas13 system does not require RNA modification, but the uncertainty in CRISPR RNA (crRNA) efficiency and low signal-to-noise ratio are its limitations. Fluorescent dye-based RNA-tagging systems include molecular beacons and fluorophore-binding aptamers. The molecular beacons have high specificity and high signal-to-noise ratio; Mango and Peppers outperform the other RNA-tagging system in signal-to-noise, but they also need gene editing. Live-cell RNA imaging allows us to visualize critical steps of RNA activities, including transcription, splicing, transport, translation (for message RNA only) and subcellular localization. It will contribute to studying biological processes such as cell differentiation and the transcriptional regulation mechanism when cells adapt to the external environment, and it improves our understanding of the pathogenic mechanism of various diseases caused by abnormal RNA behavior and helps to find potential therapeutic targets. This review provides an overview of current progress of live-cell RNA imaging techniques and highlights their major strengths and limitations.
Collapse
Affiliation(s)
- Pingping Sun
- 1. The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, Zhejiang Province, China
- 2. Institute of Translational Medicine, Zhejiang University, Hangzhou 310058, China
| | - Wei Zou
- 1. The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, Zhejiang Province, China
- 2. Institute of Translational Medicine, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
6
|
Courtney SJ, Stromberg ZR, Myers y Gutiérrez A, Jacobsen D, Stromberg LR, Lenz KD, Theiler J, Foley BT, Gans J, Yusim K, Kubicek-Sutherland JZ. Optical Biosensor Platforms Display Varying Sensitivity for the Direct Detection of Influenza RNA. BIOSENSORS 2021; 11:367. [PMID: 34677323 PMCID: PMC8534094 DOI: 10.3390/bios11100367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 12/28/2022]
Abstract
Detection methods that do not require nucleic acid amplification are advantageous for viral diagnostics due to their rapid results. These platforms could provide information for both accurate diagnoses and pandemic surveillance. Influenza virus is prone to pandemic-inducing genetic mutations, so there is a need to apply these detection platforms to influenza diagnostics. Here, we analyzed the Fast Evaluation of Viral Emerging Risks (FEVER) pipeline on ultrasensitive detection platforms, including a waveguide-based optical biosensor and a flow cytometry bead-based assay. The pipeline was also evaluated in silico for sequence coverage in comparison to the U.S. Centers for Disease Control and Prevention's (CDC) influenza A and B diagnostic assays. The influenza FEVER probe design had a higher tolerance for mismatched bases than the CDC's probes, and the FEVER probes altogether had a higher detection rate for influenza isolate sequences from GenBank. When formatted for use as molecular beacons, the FEVER probes detected influenza RNA as low as 50 nM on the waveguide-based optical biosensor and 1 nM on the flow cytometer. In addition to molecular beacons, which have an inherently high background signal we also developed an exonuclease selection method that could detect 500 pM of RNA. The combination of high-coverage probes developed using the FEVER pipeline coupled with ultrasensitive optical biosensors is a promising approach for future influenza diagnostic and biosurveillance applications.
Collapse
Affiliation(s)
- Samantha J. Courtney
- Physical Chemistry and Applied Spectroscopy, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (S.J.C.); (Z.R.S.); (D.J.); (L.R.S.); (K.D.L.)
| | - Zachary R. Stromberg
- Physical Chemistry and Applied Spectroscopy, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (S.J.C.); (Z.R.S.); (D.J.); (L.R.S.); (K.D.L.)
| | - Adán Myers y Gutiérrez
- Biosecurity and Public Health, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (A.M.y.G.); (J.G.)
| | - Daniel Jacobsen
- Physical Chemistry and Applied Spectroscopy, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (S.J.C.); (Z.R.S.); (D.J.); (L.R.S.); (K.D.L.)
| | - Loreen R. Stromberg
- Physical Chemistry and Applied Spectroscopy, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (S.J.C.); (Z.R.S.); (D.J.); (L.R.S.); (K.D.L.)
| | - Kiersten D. Lenz
- Physical Chemistry and Applied Spectroscopy, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (S.J.C.); (Z.R.S.); (D.J.); (L.R.S.); (K.D.L.)
| | - James Theiler
- Space Data Science and Systems, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;
| | - Brian T. Foley
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;
| | - Jason Gans
- Biosecurity and Public Health, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (A.M.y.G.); (J.G.)
| | - Karina Yusim
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;
| | - Jessica Z. Kubicek-Sutherland
- Physical Chemistry and Applied Spectroscopy, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; (S.J.C.); (Z.R.S.); (D.J.); (L.R.S.); (K.D.L.)
| |
Collapse
|
7
|
Barnoin G, Shaya J, Richert L, Le HN, Vincent S, Guérineau V, Mély Y, Michel BY, Burger A. Intermolecular dark resonance energy transfer (DRET): upgrading fluorogenic DNA sensing. Nucleic Acids Res 2021; 49:e72. [PMID: 33872373 PMCID: PMC8266640 DOI: 10.1093/nar/gkab237] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/01/2021] [Accepted: 04/08/2021] [Indexed: 11/13/2022] Open
Abstract
The sensitivity of FRET-based sensing is usually limited by the spectral overlaps of the FRET donor and acceptor, which generate a poor signal-to-noise ratio. To overcome this limitation, a quenched donor presenting a large Stokes shift can be combined with a bright acceptor to perform Dark Resonance Energy Transfer (DRET). The consequent fluorogenic response from the acceptor considerably improves the signal-to-noise ratio. To date, DRET has mainly relied on a donor that is covalently bound to the acceptor. In this context, our aim was to develop the first intermolecular DRET pair for specific sensing of nucleic acid sequences. To this end, we designed DFK, a push-pull probe based on a fluorenyl π-platform that is strongly quenched in water. DFK was incorporated into a series of oligonucleotides and used as a DRET donor with Cy5-labeled complementary sequences. In line with our expectations, excitation of the dark donor in the double-labeled duplex switched on the far-red Cy5 emission and remained free of cross-excitation. The DRET mechanism was supported by time-resolved fluorescence measurements. This concept was then applied with binary probes, which confirmed the distance dependence of DRET as well as its potency in detecting sequences of interest with low background noise.
Collapse
Affiliation(s)
- Guillaume Barnoin
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272 - Parc Valrose, 06108 Nice cedex 2, France
| | - Janah Shaya
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272 - Parc Valrose, 06108 Nice cedex 2, France
| | - Ludovic Richert
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Hoang-Ngoan Le
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272 - Parc Valrose, 06108 Nice cedex 2, France
| | - Steve Vincent
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272 - Parc Valrose, 06108 Nice cedex 2, France
| | - Vincent Guérineau
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Yves Mély
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Benoît Y Michel
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272 - Parc Valrose, 06108 Nice cedex 2, France
| | - Alain Burger
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272 - Parc Valrose, 06108 Nice cedex 2, France
| |
Collapse
|
8
|
Xu C, He XY, Ren XH, Cheng SX. Direct detection of intracellular miRNA in living circulating tumor cells by tumor targeting nanoprobe in peripheral blood. Biosens Bioelectron 2021; 190:113401. [PMID: 34119837 DOI: 10.1016/j.bios.2021.113401] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/24/2021] [Accepted: 06/01/2021] [Indexed: 02/07/2023]
Abstract
Molecular analysis of circulating tumor cells (CTCs) is of critical significance for the non-invasive early detection of tumors. However, in situ detection of intracellular nucleic acids of CTCs in whole blood still remains challenge. By using a highly efficient tumor targeting nanoprobe, we realize in situ detection of microRNA-21 (miR-21) of living CTCs in unprocessed whole blood. In the nanoprobe, a catalytic hairpin assembly (CHA) system is complexed with protamine sulfate (PS), and then decorated by SYL3C conjugated hyaluronic acid (SHA) and hyaluronic acid (HA). The CHA system can be specifically delivered into living CTCs in whole blood, followed by hybridization between the CHA system and intracellular miR-21 in CTCs to induce strong fluorescence emission. After isolation of CTCs by membrane filtration, CTCs of cancer patients can be directly visualized by a fluorescence microscope for miR-21 detection at a single-cell level. Our study provides an efficient strategy to realize in situ genomic analysis of living CTCs in whole blood.
Collapse
Affiliation(s)
- Chang Xu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Xiao-Yan He
- School of Life Sciences, Anhui Medical University, Hefei, 230032, PR China
| | - Xiao-He Ren
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Si-Xue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, 430072, PR China.
| |
Collapse
|
9
|
Bidar N, Amini M, Oroojalian F, Baradaran B, Hosseini SS, Shahbazi MA, Hashemzaei M, Mokhtarzadeh A, Hamblin MR, de la Guardia M. Molecular beacon strategies for sensing purpose. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116143] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
10
|
Badu S, Melnik R, Singh S. Mathematical and computational models of RNA nanoclusters and their applications in data-driven environments. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1804564] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Shyam Badu
- MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Roderick Melnik
- MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, Waterloo, Ontario, Canada
- BCAM-Basque Center for Applied Mathematics, Bilbao, Spain
| | - Sundeep Singh
- MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, Waterloo, Ontario, Canada
| |
Collapse
|
11
|
Xu C, He XY, Peng Y, Dai BS, Liu BY, Cheng SX. Facile Strategy To Enhance Specificity and Sensitivity of Molecular Beacons by an Aptamer-Functionalized Delivery Vector. Anal Chem 2020; 92:2088-2096. [PMID: 31855408 DOI: 10.1021/acs.analchem.9b04596] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
To enhance the specificity and sensitivity of molecular beacons (MBs) in detecting mRNA in living tumor cells, we introduced an aptamer (AS1411) to the delivery system of MBs to form an aptamer-decorated nanoprobe (ANP), which was prepared through self-assembly between AS1411-conjugated carboxymethyl chitosan (ACMC) with protamine sulfate (PS)/CaCO3/MB cores. Owing to the specific binding of AS1411 to nucleolin, which is overexpressed in tumor cell membranes and nuclei, an AS1411-decorated MB-delivery system leads to dramatically increased cell uptake of MBs for probing survivin mRNA and thus induces strong intracellular fluorescence emission in targeted tumorous cells and cell nuclei. Furthermore, we demonstrate that ANP can efficiently detect survivin mRNA in mitochondria. In other words, the effective delivery of MBs ensures the precise detection of mRNA distribution in diverse organelles. In addition, we evaluated the efficiency of ANP in probing tumor cells in simulated blood as well as in peripheral blood from a healthy donor and found that the nanoprobe can specifically deliver MBs to tumor cells and identify tumor cells in blood. The targeting delivery system we constructed holds promising applications in precise detection of subcellular distribution of mRNA in living tumor cells as well as in fluorescence-guided cancer detection in liquid biopsy technology. This study provides a facile strategy to effectively improve the specificity and sensitivity of conventional molecular beacons.
Collapse
Affiliation(s)
- Chang Xu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry , Wuhan University , Wuhan 430072 , P. R. China
| | - Xiao-Yan He
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry , Wuhan University , Wuhan 430072 , P. R. China
| | - Yan Peng
- Department of Pharmacy , The Renmin Hospital of Wuhan University , Wuhan 430060 , P. R. China
| | - Bao-Sheng Dai
- Department of Clinical Laboratory , The Renmin Hospital of Wuhan University , Wuhan 430060 , P. R. China
| | - Bo-Ya Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry , Wuhan University , Wuhan 430072 , P. R. China
| | - Si-Xue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry , Wuhan University , Wuhan 430072 , P. R. China
| |
Collapse
|
12
|
Zhang B, Maimaiti Y, Liu C, Li J, Wang H, Lin H, Deng Z, Lu X, Zhang X. Direct detection of Staphylococcus aureus in positive blood cultures through molecular beacon-based fluorescence in situ hybridization. J Microbiol Methods 2019; 159:34-41. [PMID: 30776392 DOI: 10.1016/j.mimet.2019.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 01/31/2019] [Accepted: 02/13/2019] [Indexed: 01/25/2023]
Abstract
OBJECTIVE Clinical diagnosis of bloodstream infection diseases depends on the blood culture results. Bacterial identification by traditional methods is time-consuming. This study aimed to utilize molecular beacon-based fluorescence in situ hybridization (MB-FISH) for rapid and direct detection of Staphylococcus aureus in positive blood cultures. METHODS Three molecular beacon probes (MB1, MB2 and MB3) were designed and synthesized to target the 16S rRNA gene fragment of S. aureus. The MB-FISH system was optimized, and the specificity of this method in detecting S. aureus was evaluated. This approach was used to test 41 g-positive clinical specimens with positive blood cultures. In addition, the consistency of this method with traditional methods was evaluated. RESULTS Signal-to-noise ratio (S/N) of the molecular beacon MB1 was significantly higher than that of MB2 and MB3 (P < .001). The S/N ratios of MB1 probe at different concentrations were all >20. Thermal denaturation curve of the probe suggested that its hairpin structure can be opened and closed. Conditions such as deionized formamide concentration, ionic strength and temperature were optimized by monitoring the fluorescence intensity of MB1 in the presence or absence of its target sequence B1. The optimized hybridization system produced fluorescence only in S. aureus. The specificity and sensitivity of MB1 probe for detecting S. aureus in 41 specimens were 100% and 93.75%, respectively. Although sample size was small, MB-FISH appeared to be consistent with traditional culture methods (Kappa value = 0.948). CONCLUSION MB-FISH demonstrates strong specificity and high sensitivity, and can be used for direct detection of S. aureus in positive blood cultures.
Collapse
Affiliation(s)
- Bo Zhang
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China; Medical School of Shihezi University, Shihezi, Xinjiang, China
| | - Yibeibaihan Maimaiti
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Chunyan Liu
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Jing Li
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Haiye Wang
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Haojie Lin
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Zhaohui Deng
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Xinhong Lu
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China
| | - Xin Zhang
- Department of Clinical Laboratory, Hospital of Xinjiang Production and Construction Corps/Second Affiliated Hospital, Medical School of Shihezi University, Urumqi, Xinjiang, China.
| |
Collapse
|
13
|
Murata Y, Jo JI, Tabata Y. Preparation of cationized gelatin nanospheres incorporating molecular beacon to visualize cell apoptosis. Sci Rep 2018; 8:14839. [PMID: 30287861 PMCID: PMC6172245 DOI: 10.1038/s41598-018-33231-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 09/17/2018] [Indexed: 12/16/2022] Open
Abstract
The objective of this study is to prepare cationized gelatin nanospheres (cGNS) incorporating a molecular beacon (MB), and visualize cellular apoptosis. Two types of MB to detect the messenger RNA (mRNA) of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) (GAP MB), and caspase-3 (casp3 MB) were incorporated in cGNS, respectively. MB incorporated in cGNS showed the DNA sequence specificity in hybridization. The cGNS incorporation enabled MB to enhance the stability against nuclease to a significantly great extent compared with free MB. The cGNS incorporating GAP MB were internalized into the KUM6 of a mouse bone marrow-derived stem cell by an endocytotic pathway. The cGNS were not distributed at the lysosomes. After the incubation with cGNS, the cell apoptosis was induced at different concentrations of camptothecin. No change in the intracellular fluorescence was observed for cGNSGAPMB. On the other hand, for the cGNScasp3MB, the fluorescent intensity significantly enhanced by the apoptosis induction of cells. It is concluded that cGNS incorporating MB is a promising system for the visualization of cellular apoptosis.
Collapse
Affiliation(s)
- Yuki Murata
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Jun-Ichiro Jo
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yasuhiko Tabata
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
| |
Collapse
|
14
|
Pogue BW, Wilson BC. Optical and x-ray technology synergies enabling diagnostic and therapeutic applications in medicine. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-17. [PMID: 30350489 PMCID: PMC6197862 DOI: 10.1117/1.jbo.23.12.121610] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/24/2018] [Indexed: 05/10/2023]
Abstract
X-ray and optical technologies are the two central pillars for human imaging and therapy. The strengths of x-rays are deep tissue penetration, effective cytotoxicity, and the ability to image with robust projection and computed-tomography methods. The major limitations of x-ray use are the lack of molecular specificity and the carcinogenic risk. In comparison, optical interactions with tissue are strongly scatter dominated, leading to limited tissue penetration, making imaging and therapy largely restricted to superficial or endoscopically directed tissues. However, optical photon energies are comparable with molecular energy levels, thereby providing the strength of intrinsic molecular specificity. Additionally, optical technologies are highly advanced and diversified, being ubiquitously used throughout medicine as the single largest technology sector. Both have dominant spatial localization value, achieved with optical surface scanning or x-ray internal visualization, where one often is used with the other. Therapeutic delivery can also be enhanced by their synergy, where radio-optical and optical-radio interactions can inform about dose or amplify the clinical therapeutic value. An emerging trend is the integration of nanoparticles to serve as molecular intermediates or energy transducers for imaging and therapy, requiring careful design for the interaction either by scintillation or Cherenkov light, and the nanoscale design is impacted by the choices of optical interaction mechanism. The enhancement of optical molecular sensing or sensitization of tissue using x-rays as the energy source is an important emerging field combining x-ray tissue penetration in radiation oncology with the molecular specificity and packaging of optical probes or molecular localization. The ways in which x-rays can enable optical procedures, or optics can enable x-ray procedures, provide a range of new opportunities in both diagnostic and therapeutic medicine. Taken together, these two technologies form the basis for the vast majority of diagnostics and therapeutics in use in clinical medicine.
Collapse
Affiliation(s)
- Brian W. Pogue
- Dartmouth College, Thayer School of Engineering, Geisel School of Medicine, Hanover, New Hampshire, United States
| | - Brian C. Wilson
- University of Toronto, Princess Margaret Cancer Centre/University Health Network, Toronto, Ontario, Canada
| |
Collapse
|
15
|
Xia Y, Zhang R, Wang Z, Tian J, Chen X. Recent advances in high-performance fluorescent and bioluminescent RNA imaging probes. Chem Soc Rev 2017; 46:2824-2843. [PMID: 28345687 PMCID: PMC5472208 DOI: 10.1039/c6cs00675b] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
RNA plays an important role in life processes. Imaging of messenger RNAs (mRNAs) and micro-RNAs (miRNAs) not only allows us to learn the formation and transcription of mRNAs and the biogenesis of miRNAs involved in various life processes, but also helps in detecting cancer. High-performance RNA imaging probes greatly expand our view of life processes and enhance the cancer detection accuracy. In this review, we summarize the state-of-the-art high-performance RNA imaging probes, including exogenous probes that can image RNA sequences with special modification and endogeneous probes that can directly image endogenous RNAs without special treatment. For each probe, we review its structure and imaging principle in detail. Finally, we summarize the application of mRNA and miRNA imaging probes in studying life processes as well as in detecting cancer. By correlating the structures and principles of various probes with their practical uses, we compare different RNA imaging probes and offer guidance for better utilization of the current imaging probes and the future design of higher-performance RNA imaging probes.
Collapse
Affiliation(s)
- Yuqiong Xia
- Engineering Research Center of Molecular-imaging and Neuro-imaging of Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China.
| | | | | | | | | |
Collapse
|
16
|
Abraham P, Maliekal TT. Single cell biology beyond the era of antibodies: relevance, challenges, and promises in biomedical research. Cell Mol Life Sci 2017; 74:1177-1189. [PMID: 27714408 PMCID: PMC11107591 DOI: 10.1007/s00018-016-2382-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/26/2016] [Accepted: 09/27/2016] [Indexed: 01/05/2023]
Abstract
Research of the past two decades has proved the relevance of single cell biology in basic research and translational medicine. Successful detection and isolation of specific subsets is the key to understand their functional heterogeneity. Antibodies are conventionally used for this purpose, but their relevance in certain contexts is limited. In this review, we discuss some of these contexts, posing bottle neck for different fields of biology including biomedical research. With the advancement of chemistry, several methods have been introduced to overcome these problems. Even though microfluidics and microraft array are newer techniques exploited for single cell biology, fluorescence-activated cell sorting (FACS) remains the gold standard technique for isolation of cells for many biomedical applications, like stem cell therapy. Here, we present a comprehensive and comparative account of some of the probes that are useful in FACS. Further, we illustrate how these techniques could be applied in biomedical research. It is postulated that intracellular molecular markers like nucleostemin (GNL3), alkaline phosphatase (ALPL) and HIRA can be used for improving the outcome of cardiac as well as bone regeneration. Another field that could utilize intracellular markers is diagnostics, and we propose the use of specific peptide nucleic acid probes (PNPs) against certain miRNAs for cancer surgical margin prediction. The newer techniques for single cell biology, based on intracellular molecules, will immensely enhance the repertoire of possible markers for the isolation of cell types useful in biomedical research.
Collapse
Affiliation(s)
- Parvin Abraham
- Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Tessy Thomas Maliekal
- Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India.
| |
Collapse
|
17
|
Jasinski D, Haque F, Binzel DW, Guo P. Advancement of the Emerging Field of RNA Nanotechnology. ACS NANO 2017; 11:1142-1164. [PMID: 28045501 PMCID: PMC5333189 DOI: 10.1021/acsnano.6b05737] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 01/03/2017] [Indexed: 05/14/2023]
Abstract
The field of RNA nanotechnology has advanced rapidly during the past decade. A variety of programmable RNA nanoparticles with defined shape, size, and stoichiometry have been developed for diverse applications in nanobiotechnology. The rising popularity of RNA nanoparticles is due to a number of factors: (1) removing the concern of RNA degradation in vitro and in vivo by introducing chemical modification into nucleotides without significant alteration of the RNA property in folding and self-assembly; (2) confirming the concept that RNA displays very high thermodynamic stability and is suitable for in vivo trafficking and other applications; (3) obtaining the knowledge to tune the immunogenic properties of synthetic RNA constructs for in vivo applications; (4) increased understanding of the 4D structure and intermolecular interaction of RNA molecules; (5) developing methods to control shape, size, and stoichiometry of RNA nanoparticles; (6) increasing knowledge of regulation and processing functions of RNA in cells; (7) decreasing cost of RNA production by biological and chemical synthesis; and (8) proving the concept that RNA is a safe and specific therapeutic modality for cancer and other diseases with little or no accumulation in vital organs. Other applications of RNA nanotechnology, such as adapting them to construct 2D, 3D, and 4D structures for use in tissue engineering, biosensing, resistive biomemory, and potential computer logic gate modules, have stimulated the interest of the scientific community. This review aims to outline the current state of the art of RNA nanoparticles as programmable smart complexes and offers perspectives on the promising avenues of research in this fast-growing field.
Collapse
Affiliation(s)
| | | | - Daniel W Binzel
- College of Pharmacy, Division
of Pharmaceutics and Pharmaceutical Chemistry; College of Medicine,
Department of Physiology & Cell Biology; and Dorothy M. Davis
Heart and Lung Research Institute, The Ohio
State University, Columbus, Ohio 43210, United States
| | - Peixuan Guo
- College of Pharmacy, Division
of Pharmaceutics and Pharmaceutical Chemistry; College of Medicine,
Department of Physiology & Cell Biology; and Dorothy M. Davis
Heart and Lung Research Institute, The Ohio
State University, Columbus, Ohio 43210, United States
| |
Collapse
|
18
|
Bertol JW, Gatti MSV. Rapid detection of infectious rotavirus group A using a molecular beacon assay. J Virol Methods 2016; 234:156-9. [PMID: 27131514 DOI: 10.1016/j.jviromet.2016.04.017] [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: 02/05/2016] [Revised: 04/18/2016] [Accepted: 04/27/2016] [Indexed: 10/21/2022]
Abstract
Rapid, sensitive and specific methods are necessary to detect and quantify infectious viruses. Cultivating and detecting enteric viruses in cell culture are difficult, thus impairing the advancement of knowledge regarding virus-induced diarrhea. Rotavirus (RV) detection has been conducted by serological or molecular biology methods, which do not provide information regarding viral infectivity. Molecular beacons (MBs) have demonstrated efficacy for viral detection in cell culture. We propose a MB assay to detect human rotavirus group A (HuRVA) in cell culture. MA104 cells were mock-infected or infected with HuRVA strains (RotaTeq(®) vaccine and K8 strains), and a specific MB for the HuRVA VP6 gene was used for virus detection. Mock-infected cells showed basal fluorescence, while infected cells exhibited increased fluorescence emission. MB hybridization to the viral mRNA target of HuRVA was confirmed. Fluorescence increased according to the increase in the number of infectious viral particles per cell (MOI 0.5-MOI 1). This technique provides quick and efficient HuRVA detection in cell culture without a need for viral culture for several days or many times until cytopathic effects are visualized. This methodology could be applied in the selection of samples for developing RV vaccines.
Collapse
Affiliation(s)
- Jéssica Wildgrube Bertol
- Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil.
| | - Maria Silvia Viccari Gatti
- Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil.
| |
Collapse
|
19
|
Dong H, Wu ZS, Xu J, Ma J, Zhang H, Wang J, Shen W, Xie J, Jia L. Novel multifunction-integrated molecular beacon for the amplification detection of DNA hybridization based on primer/template-free isothermal polymerization. Biosens Bioelectron 2015; 72:182-90. [DOI: 10.1016/j.bios.2015.04.090] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/20/2015] [Accepted: 04/27/2015] [Indexed: 01/10/2023]
|
20
|
Suzuki Y, Yokoyama K. Development of Functional Fluorescent Molecular Probes for the Detection of Biological Substances. BIOSENSORS 2015; 5:337-63. [PMID: 26095660 PMCID: PMC4493553 DOI: 10.3390/bios5020337] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/08/2015] [Accepted: 06/09/2015] [Indexed: 01/27/2023]
Abstract
This review is confined to sensors that use fluorescence to transmit biochemical information. Fluorescence is, by far, the most frequently exploited phenomenon for chemical sensors and biosensors. Parameters that define the application of such sensors include intensity, decay time, anisotropy, quenching efficiency, and luminescence energy transfer. To achieve selective (bio)molecular recognition based on these fluorescence phenomena, various fluorescent elements such as small organic molecules, enzymes, antibodies, and oligonucleotides have been designed and synthesized over the past decades. This review describes the immense variety of fluorescent probes that have been designed for the recognitions of ions, small and large molecules, and their biological applications in terms of intracellular fluorescent imaging techniques.
Collapse
Affiliation(s)
- Yoshio Suzuki
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba 305-8566, Japan.
| | - Kenji Yokoyama
- School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan.
| |
Collapse
|
21
|
Zhang R, Kwok RTK, Tang BZ, Liu B. Hybridization induced fluorescence turn-on of AIEgen–oligonucleotide conjugates for specific DNA detection. RSC Adv 2015. [DOI: 10.1039/c5ra00322a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We report a two-armed AIE probes for specific DNA detection, and the signal output can be further enhanced when two probes hybridize to each.
Collapse
Affiliation(s)
- Ruoyu Zhang
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
| | - Ryan T. K. Kwok
- Department of Chemistry
- Division of Biomedical Engineering
- The Hong Kong University of Science and Technology
- Hong Kong
- China
| | - Ben Zhong Tang
- Department of Chemistry
- Division of Biomedical Engineering
- The Hong Kong University of Science and Technology
- Hong Kong
- China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
- Institute of Materials Research and Engineering (A*STAR)
- Singapore
| |
Collapse
|
22
|
Carpi S, Fogli S, Giannetti A, Adinolfi B, Tombelli S, Da Pozzo E, Vanni A, Martinotti E, Martini C, Breschi MC, Pellegrino M, Nieri P, Baldini F. Theranostic properties of a survivin-directed molecular beacon in human melanoma cells. PLoS One 2014; 9:e114588. [PMID: 25501971 PMCID: PMC4263748 DOI: 10.1371/journal.pone.0114588] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 11/11/2014] [Indexed: 12/24/2022] Open
Abstract
Survivin is an inhibitor of apoptosis overexpressed in different types of tumors and undetectable in most terminally differentiated normal tissues. In the current study, we sought to evaluate the in vitro theranostic properties of a molecular beacon-oligodeoxynucleotide (MB) that targets survivin mRNA. We used laser scanning confocal microscopy to study MB delivery in living cells and real-time PCR and western blot to assess selective survivin-targeting in human malignant melanoma cells. We further assess the pro-apoptotic effect of MB by measuring internucleosomal DNA fragmentation, dissipation of mitochondrial membrane potential (MMP) and changes in nuclear morphology. Transfection of MB into A375 and 501 Mel cells generated high signal intensity from the cytoplasm, while no signal was detected in the extracellular environment and in survivin-negative cells (i.e., human melanocytes and monocytes). MB time dependently decreased survivin mRNA and protein expression in melanoma cells with the maximum effect reached at 72 h. Treatment of melanoma cells with MB induced apoptosis by significant changes in MMP, accumulation of histone-complexed DNA fragments in the cytoplasm and nuclear condensation. MB also enhanced the pro-apoptotic effect of standard chemotherapeutic drugs tested at clinically relevant concentrations. The MB tested in the current study conjugates the ability of imaging with the pharmacological silencing activity against survivin mRNA in human melanoma cells and may represent an innovative approach for cancer diagnosis and treatment.
Collapse
Affiliation(s)
- Sara Carpi
- Department of Pharmacy, University of Pisa, Pisa, Italy
- * E-mail:
| | - Stefano Fogli
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Ambra Giannetti
- Institute of Applied Physics “Nello Carrara,” IFAC-CNR, Sesto Fiorentino, Florence, Italy
| | | | - Sara Tombelli
- Institute of Applied Physics “Nello Carrara,” IFAC-CNR, Sesto Fiorentino, Florence, Italy
| | | | - Alessia Vanni
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | | | | | - Mario Pellegrino
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Paola Nieri
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Francesco Baldini
- Institute of Applied Physics “Nello Carrara,” IFAC-CNR, Sesto Fiorentino, Florence, Italy
| |
Collapse
|
23
|
Tan Y, Sutanto E, Alleyne AG, Cunningham BT. Photonic crystal enhancement of a homogeneous fluorescent assay using submicron fluid channels fabricated by E-jet patterning. JOURNAL OF BIOPHOTONICS 2014; 7:266-75. [PMID: 24376013 PMCID: PMC4980434 DOI: 10.1002/jbio.201300158] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 11/18/2013] [Accepted: 12/07/2013] [Indexed: 05/21/2023]
Abstract
We demonstrate the enhancement of a liquid-based homogenous fluorescence assay using the resonant electric fields from a photonic crystal (PC) surface. Because evanescent fields are confined to the liquid volume nearest to the photonic crystal, we developed a simple approach for integrating a PC fabricated on a silicon substrate within a fluid channel with submicron height, using electrohydrodynamic jet (e-jet) printing of a light-curable epoxy adhesive to define the fluid channel pattern. The PC is excited by a custom-designed compact instrument that illuminates the PC with collimated light that precisely matches the resonant coupling condition when the PC is covered with aqueous media. Using a molecular beacon nucleic acid fluorescence resonant energy transfer (FRET) probe for a specific miRNA sequence, we demonstrate an 8× enhancement of the fluorescence emission signal, compared to performing the same assay without exciting resonance in the PC detecting a miRNA sequence at a concentration of 62 nM from a liquid volume of only ∼20 nL. The approach may be utilized for any liquid-based fluorescence assay for applications in point-of-care diagnostics, environmental monitoring, or pathogen detection.
Collapse
Affiliation(s)
- Yafang Tan
- Department of Electrical and Computer Engineering, 1406 West Green Street
| | - Erick Sutanto
- Department of Mechanical Science and Engineering, 1206 West Green Street
| | - Andrew G. Alleyne
- Department of Mechanical Science and Engineering, 1206 West Green Street
| | - Brian T. Cunningham
- Department of Electrical and Computer Engineering, 1406 West Green Street
- Department of Bioengineering, 1304 West Springfield Avenue
| |
Collapse
|