1
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Chang H, Clemens S, Gao P, Li Q, Zhao H, Wang L, Zhang J, Zhou P, Johnsson K, Wang L. Fluorogenic Rhodamine-Based Chemigenetic Biosensor for Monitoring Cellular NADPH Dynamics. J Am Chem Soc 2024. [PMID: 39037873 DOI: 10.1021/jacs.3c13137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Ratiometric biosensors employing Förster Resonance Energy Transfer (FRET) enable the real-time tracking of metabolite dynamics. Here, we introduce an approach for generating a FRET-based biosensor in which changes in apparent FRET efficiency rely on the analyte-controlled fluorogenicity of a rhodamine rather than the commonly used distance change between donor-acceptor fluorophores. Our fluorogenic, rhodamine-based, chemigenetic biosensor (FOCS) relies on a synthetic, protein-tethered FRET probe, in which the rhodamine acting as the FRET acceptor switches in an analyte-dependent manner from a dark to a fluorescent state. This allows ratiometric sensing of the analyte concentration. We use this approach to generate a chemigenetic biosensor for nicotinamide adenine dinucleotide phosphate (NADPH). FOCS-NADPH exhibits a rapid and reversible response toward NAPDH with a good dynamic range, selectivity, and pH insensitivity. FOCS-NADPH allows real-time monitoring of cytosolic NADPH fluctuations in live cells during oxidative stress or after drug exposure. We furthermore used FOCS-NADPH to investigate NADPH homeostasis regulation through the pentose phosphate pathway of glucose metabolism. FOCS-NADPH is a powerful tool for studying NADPH metabolism and serves as a blueprint for the development of future fluorescent biosensors.
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Affiliation(s)
- Huimin Chang
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Simon Clemens
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, Heidelberg D-69120, Germany
| | - Pingting Gao
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Quanlin Li
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Hanqing Zhao
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Lehua Wang
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Jingye Zhang
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Pinghong Zhou
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
| | - Kai Johnsson
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, Heidelberg D-69120, Germany
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Lu Wang
- Key Laboratory of Smart Drug Delivery Ministry of Education, School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai 201203, China
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2
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Fang H, Wang M, Wei P, Liu Q, Su Y, Liu H, Chen Y, Su Z, He W. Molecular probes for super-resolution imaging of drug dynamics. Adv Drug Deliv Rev 2024; 210:115330. [PMID: 38735627 DOI: 10.1016/j.addr.2024.115330] [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: 02/29/2024] [Revised: 04/09/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
Super-resolution molecular probes (SRMPs) are essential tools for visualizing drug dynamics within cells, transcending the resolution limits of conventional microscopy. In this review, we provide an overview of the principles and design strategies of SRMPs, emphasizing their role in accurately tracking drug molecules. By illuminating the intricate processes of drug distribution, diffusion, uptake, and metabolism at a subcellular and molecular level, SRMPs offer crucial insights into therapeutic interventions. Additionally, we explore the practical applications of super-resolution imaging in disease treatment, highlighting the significance of SRMPs in advancing our understanding of drug action. Finally, we discuss future perspectives, envisioning potential advancements and innovations in this field. Overall, this review serves to inform and practitioners about the utility of SRMPs in driving innovation and progress in pharmacology, providing valuable insights for drug development and optimization.
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Affiliation(s)
- Hongbao Fang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
| | - Mengmeng Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; College of Life Science and Chemistry, Jiangsu Key Laboratory of Biological Functional Molecules, Jiangsu Second Normal University, Nanjing, Jiangsu 210013, China
| | - Pengfan Wei
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qian Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yan Su
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Hongke Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yuncong Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China; Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Medical School, Nanjing University, Nanjing 210008, PR China.
| | - Zhi Su
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Weijiang He
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
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3
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Stockinger F, Poc P, Möhwald A, Karch S, Häfner S, Alzheimer C, Sandoz G, Huth T, Broichhagen J. Multicolor, Cell-Impermeable, and High Affinity BACE1 Inhibitor Probes Enable Superior Endogenous Staining and Imaging of Single Molecules. J Med Chem 2024; 67:10152-10167. [PMID: 38842406 PMCID: PMC11215771 DOI: 10.1021/acs.jmedchem.4c00339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/10/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
The prevailing but not undisputed amyloid cascade hypothesis places the β-site of APP cleaving enzyme 1 (BACE1) center stage in Alzheimer's Disease pathogenesis. Here, we investigated functional properties of BACE1 with novel tag- and antibody-free labeling tools, which are conjugates of the BACE1-inhibitor IV (also referred to as C3) linked to different impermeable Alexa Fluor dyes. We show that these fluorescent small molecules bind specifically to BACE1, with a 1:1 labeling stoichiometry at their orthosteric site. This is a crucial property especially for single-molecule and super-resolution microscopy approaches, allowing characterization of the dyes' labeling capabilities in overexpressing cell systems and in native neuronal tissue. With multiple colors at hand, we evaluated BACE1-multimerization by Förster resonance energy transfer (FRET) acceptor-photobleaching and single-particle imaging of native BACE1. In summary, our novel fluorescent inhibitors, termed Alexa-C3, offer unprecedented insights into protein-protein interactions and diffusion behavior of BACE1 down to the single molecule level.
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Affiliation(s)
- Florian Stockinger
- Institut
für Physiologie und Pathophysiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Pascal Poc
- Department
of Chemical Biology, Max Planck Institute
for Medical Research, Heidelberg 69120, Germany
- Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
| | - Alexander Möhwald
- Institut
für Physiologie und Pathophysiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Sandra Karch
- Institut
für Physiologie und Pathophysiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Stephanie Häfner
- Université
Côte d’Azur, CNRS, INSERM,
iBV, Nice 06108, Cedex 2, France
- Laboratories
of Excellence, Ion Channel Science and Therapeutics, Nice 06108, Cedex 2, France
| | - Christian Alzheimer
- Institut
für Physiologie und Pathophysiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Guillaume Sandoz
- Université
Côte d’Azur, CNRS, INSERM,
iBV, Nice 06108, Cedex 2, France
- Laboratories
of Excellence, Ion Channel Science and Therapeutics, Nice 06108, Cedex 2, France
| | - Tobias Huth
- Institut
für Physiologie und Pathophysiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Johannes Broichhagen
- Department
of Chemical Biology, Max Planck Institute
for Medical Research, Heidelberg 69120, Germany
- Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
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4
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Ahmed S, Nilofar, Cvetanović Kljakić A, Stupar A, Lončar B, Božunović J, Gašić U, Yıldıztugay E, Ferrante C, Zengin G. Exploring traditional and modern approaches for extracting bioactive compounds from Ferulago trachycarpa. Prep Biochem Biotechnol 2024:1-14. [PMID: 38756105 DOI: 10.1080/10826068.2024.2349937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
For more than two millennia, Ferulago species have been revered as therapeutic herbs, maintaining their significance in present-day folk medicine practices. Therefore, the present study was conducted to investigate the phytochemical composition, inhibitory effects on metabolic enzymes, and possible therapeutic applications of F. trachycarpa, specifically focusing on its efficacy in diabetes management, anticholinergic effects, and antioxidant capabilities. The current investigation comprised an evaluation of a range of extracts acquired via conventional and modern methodologies, such as soxhlet (SOX), maceration (MAC) accelerated solvent extraction (ASE), homogenizer-assisted extraction (HAE), supercritical fluid extraction (SFE), microwave-assisted extraction (MW), and ultrasound-assisted extraction (UAE). Various techniques were employed to assess their antioxidant capacity and enzyme inhibition. Furthermore, the research utilized ultra-high performance liquid chromatography-MS/MS (UHPLC-MS/MS) to ascertain the principal phenolic compounds that are responsible for the antioxidant capacity observed in the various F. trachycarpa extracts. Among these, extracts from HAE, ASE, and MW revealed the most promise across all methodologies tested for their antioxidant potential. Furthermore, SFE and MAC extracts inhibited the most enzymes, including cholinesterases, tyrosinase, α -amylase, and α -glycosidase, indicating their potential as efficient natural treatments for several health-related issues.
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Affiliation(s)
- Shakeel Ahmed
- Foodomics Laboratory, Instituto de Investigación en Ciencias de la Alimentación, CSIC-UAM, Madrid, Spain
| | - Nilofar
- Physiology and Biochemistry Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
- Department of Pharmacy, Botanic Garden "Giardino dei Semplici", Università degli Studi "Gabriele d'Annunzio", Chieti, Italy
| | | | - Alena Stupar
- Institute of Food Technology, University of Novi Sad, Novi Sad, Serbia
| | - Biljana Lončar
- Faculty of Technology, University of Novi Sad, Novi Sad, Serbia
| | - Jelena Božunović
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Uroš Gašić
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Evren Yıldıztugay
- Department of Biotechnology, Science Faculty, Selcuk University, Konya, Turkey
| | - Claudio Ferrante
- Department of Pharmacy, Botanic Garden "Giardino dei Semplici", Università degli Studi "Gabriele d'Annunzio", Chieti, Italy
| | - Gokhan Zengin
- Physiology and Biochemistry Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
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5
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Ohno H, Sasaki E, Yamada S, Hanaoka K. Recent advances in Si-rhodamine-based fluorescent probes for live-cell imaging. Org Biomol Chem 2024; 22:3099-3108. [PMID: 38444309 DOI: 10.1039/d4ob00130c] [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: 03/07/2024]
Abstract
Fluorescence imaging is a powerful technique for visualizing biological events in living samples with high temporal and spatial resolution. Fluorescent probes emitting far-red to near infrared (NIR) fluorescence are particularly advantageous for in vivo imaging due to their high tissue permeability and low autofluorescence, as well as their suitability for multicolor imaging. Among the far-red to NIR fluorophores, Si-rhodamine is one of the most practical fluorophores for the development of tailor-made NIR fluorescent probes because of the relative ease of synthesis of various derivatives, the unique intramolecular spirocyclization behavior, and the relatively high water solubility and high photostability of the probes. This review summarizes these features of Si-rhodamines and presents recent advances in the synthesis and applications of far-red to NIR fluorescent probes based on Si-rhodamines, focusing on live-cell imaging applications such as fluorogenic probes, super-resolution imaging and dye-protein hybrid-based indicators.
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Affiliation(s)
- Hisashi Ohno
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
| | - Eita Sasaki
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
- Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
| | - Sota Yamada
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
| | - Kenjiro Hanaoka
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
- Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
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6
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Si D, Li Q, Bao Y, Zhang J, Wang L. Fluorogenic and Cell-Permeable Rhodamine Dyes for High-Contrast Live-Cell Protein Labeling in Bioimaging and Biosensing. Angew Chem Int Ed Engl 2023; 62:e202307641. [PMID: 37483077 DOI: 10.1002/anie.202307641] [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: 05/31/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 07/25/2023]
Abstract
The advancement of fluorescence microscopy techniques has opened up new opportunities for visualizing proteins and unraveling their functions in living biological systems. Small-molecule organic dyes, which possess exceptional photophysical properties, small size, and high photostability, serve as powerful fluorescent reporters in protein imaging. However, achieving high-contrast live-cell labeling of target proteins with conventional organic dyes remains a considerable challenge in bioimaging and biosensing due to their inadequate cell permeability and high background signal. Over the past decade, a novel generation of fluorogenic and cell-permeable dyes has been developed, which have substantially improved live-cell protein labeling by fine-tuning the reversible equilibrium between a cell-permeable, nonfluorescent spirocyclic state (unbound) and a fluorescent zwitterion (protein-bound) of rhodamines. In this review, we present the mechanism and design strategies of these fluorogenic and cell-permeable rhodamines, as well as their applications in bioimaging and biosensing.
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Affiliation(s)
- Dongjuan Si
- School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai, China
| | - Quanlin Li
- School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai, China
| | - Yifan Bao
- School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai, China
| | - Jingye Zhang
- School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai, China
| | - Lu Wang
- School of Pharmacy, Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Zhangheng Road 826, Shanghai, China
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7
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Capitini C, Bigi A, Parenti N, Emanuele M, Bianchi N, Cascella R, Cecchi C, Maggi L, Annunziato F, Pavone FS, Calamai M. APP and Bace1: Differential effect of cholesterol enrichment on processing and plasma membrane mobility. iScience 2023; 26:106611. [PMID: 37128606 PMCID: PMC10148118 DOI: 10.1016/j.isci.2023.106611] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/08/2023] [Accepted: 03/31/2023] [Indexed: 05/03/2023] Open
Abstract
High cholesterol levels are a risk factor for the development of Alzheimer's disease. Experiments investigating the influence of cholesterol on the proteolytic processing of the amyloid precursor protein (APP) by the β-secretase Bace1 and on their proximity in cells have led to conflicting results. By using a fluorescence bioassay coupled with flow cytometry we found a direct correlation between the increase in membrane cholesterol amount and the degree of APP shedding in living human neuroblastoma cells. Analogue results were obtained for cells overexpressing an APP mutant that cannot be processed by α-secretase, highlighting the major influence of cholesterol enrichment on the cleavage of APP carried out by Bace1. By contrast, the cholesterol content was not correlated with changes in membrane dynamics of APP and Bace1 analyzed with single molecule tracking, indicating that the effect of cholesterol enrichment on APP processing by Bace1 is uncoupled from changes in their lateral diffusion.
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Affiliation(s)
- Claudia Capitini
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, 50019 Florence, Italy
- European Laboratory for Non-linear Spectroscopy (LENS), University of Florence, 50019Florence, Italy
| | - Alessandra Bigi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy
| | - Niccolò Parenti
- European Laboratory for Non-linear Spectroscopy (LENS), University of Florence, 50019Florence, Italy
| | - Marco Emanuele
- European Laboratory for Non-linear Spectroscopy (LENS), University of Florence, 50019Florence, Italy
| | - Niccolò Bianchi
- European Laboratory for Non-linear Spectroscopy (LENS), University of Florence, 50019Florence, Italy
| | - Roberta Cascella
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy
| | - Cristina Cecchi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134 Florence, Italy
| | - Laura Maggi
- Department of Experimental and Clinical Medicine, University of Florence 50134 Florence, Italy
| | - Francesco Annunziato
- Department of Experimental and Clinical Medicine, University of Florence 50134 Florence, Italy
| | - Francesco Saverio Pavone
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, 50019 Florence, Italy
- European Laboratory for Non-linear Spectroscopy (LENS), University of Florence, 50019Florence, Italy
- National Institute of Optics, National Research Council of Italy (CNR), Largo Fermi 6, 50125Florence, Italy
| | - Martino Calamai
- European Laboratory for Non-linear Spectroscopy (LENS), University of Florence, 50019Florence, Italy
- National Institute of Optics, National Research Council of Italy (CNR), Largo Fermi 6, 50125Florence, Italy
- Corresponding author
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8
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Zhang J, Shi H, Huang C, Mei L, Guo Q, Cheng K, Wu P, Su D, Chen Q, Gan S, Wing Chan CK, Shi J, Chen JL, Jonathan Choi CH, Yao SQ, Chen XK, Tang BZ, He J, Sun H. De Novo Designed Self-Assembling Rhodamine Probe for Real-Time, Long-Term and Quantitative Live-Cell Nanoscopy. ACS NANO 2023; 17:3632-3644. [PMID: 36744992 DOI: 10.1021/acsnano.2c10467] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Super-resolution imaging provides a powerful approach to image dynamic biomolecule events at nanoscale resolution. An ingenious method involving tuning intramolecular spirocyclization in rhodamine offers an appealing strategy to design cell-permeable fluorogenic probes for super-resolution imaging. Nevertheless, precise control of rhodamine spirocyclization presents a significant challenge. Through detailed study of the structure-activity relationship, we identified that multiple key factors control rhodamime spirocyclization. The findings provide opportunities to create fluorogenic probes with tailored properties. On the basis of our findings, we constructed self-assembling rhodamine probes for no-wash live-cell confocal and super-resolution imaging. The designed self-assembling probe Rho-2CF3 specifically labeled its target proteins and displayed high ring-opening ability, fast labeling kinetics (<1 min), and large turn-on fold (>80 folds), which is very difficult to be realized by the existing methods. Using the probe, we achieved high-contrast super-resolution imaging of nuclei and mitochondria with a spatial resolution of up to 42 nm. The probe also showed excellent photostability and proved ideal for real-time and long-term tracking of mitochondrial fission and fusion events with high spatiotemporal resolution. Furthermore, Rho-2CF3 could resolve the ultrastructure of mitochondrial cristae and quantify their morphological changes under drug treatment at nanoscale. Our strategy thus demonstrates its usefulness in designing self-assembling probes for super-resolution imaging.
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Affiliation(s)
- Jie Zhang
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, 999077, China
| | - Heng Shi
- Departments of Neuroscience and Biomedical Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong Province 510530, China
| | - Chen Huang
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Le Mei
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Qiang Guo
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Department of Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Hong Kong SAR, 999077, China
| | - Ke Cheng
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Pingzhou Wu
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Dan Su
- Departments of Neuroscience and Biomedical Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Qingxin Chen
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Shenglong Gan
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Cecilia Ka Wing Chan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| | - Jiahai Shi
- Departments of Neuroscience and Biomedical Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Jian Lin Chen
- Department of Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Hong Kong SAR, 999077, China
| | - Chung Hang Jonathan Choi
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, 999077, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Xian-Kai Chen
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Jufang He
- Departments of Neuroscience and Biomedical Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, 999077, China
| | - Hongyan Sun
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
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9
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Roßmann K, Akkaya KC, Poc P, Charbonnier C, Eichhorst J, Gonschior H, Valavalkar A, Wendler N, Cordes T, Dietzek-Ivanšić B, Jones B, Lehmann M, Broichhagen J. N-Methyl deuterated rhodamines for protein labelling in sensitive fluorescence microscopy. Chem Sci 2022; 13:8605-8617. [PMID: 35974762 PMCID: PMC9337740 DOI: 10.1039/d1sc06466e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
Rhodamine fluorophores are setting benchmarks in fluorescence microscopy. Herein, we report the deuterium (d12) congeners of tetramethyl(silicon)rhodamine, obtained by isotopic labelling of the four methyl groups, show improved photophysical parameters (i.e. brightness, lifetimes) and reduced chemical bleaching. We explore this finding for SNAP- and Halo-tag labelling in live cells, and highlight enhanced properties in several applications, such as fluorescence activated cell sorting, fluorescence lifetime microscopy, stimulated emission depletion nanoscopy and single-molecule Förster-resonance energy transfer. We finally extend this idea to other dye families and envision deuteration as a generalizable concept to improve existing and to develop new chemical biology probes.
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Affiliation(s)
- Kilian Roßmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Kerem C Akkaya
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Pascal Poc
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | | | - Jenny Eichhorst
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Hannes Gonschior
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Abha Valavalkar
- Leibniz Institute for Photonic Technology Jena e.V. (Leibniz-IPHT), Research Department Functional Interfaces Jena Germany
| | - Nicolas Wendler
- Physical and Synthetic Biology, Faculty of Biology, Ludwig-Maximilians-Universität München Großhaderner Str. 2-4, Planegg-Martinsried 82152 Germany
| | - Thorben Cordes
- Physical and Synthetic Biology, Faculty of Biology, Ludwig-Maximilians-Universität München Großhaderner Str. 2-4, Planegg-Martinsried 82152 Germany
| | - Benjamin Dietzek-Ivanšić
- Leibniz Institute for Photonic Technology Jena e.V. (Leibniz-IPHT), Research Department Functional Interfaces Jena Germany
| | - Ben Jones
- Section of Endocrinology and Investigative Medicine, Imperial College London London W12 0NN UK
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Johannes Broichhagen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
- Department of Chemical Biology, Max Planck Institute for Medical Research Heidelberg Germany
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10
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Cheng Z, Liu X, Zheng L, Xu Y, He H. Analyses on intracellular Fe 3+ with a rhodamine probe: "turn-on" response, specific recognition and bioimaging. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2277-2283. [PMID: 35621919 DOI: 10.1039/d2ay00280a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To overcome the existing difficulty in distinguishing ferric from ferrous ions, a rhodamine-containing probe was designed to combine with Fe3+ based on an opening-closing transformation of the spirolactam ring in the rhodamine moiety. Through a specific and stoichiometric fluorescence response towards Fe3+ by 1 : 1 binding accompanied by an obvious color change in the recognition process of Fe3+, a "naked-eye" detection method of Fe3+ in an aqueous environment is possible. Theoretical calculations gave a possible recognition mechanism of the probe-Fe3+ system. Further cytotoxicity and bioimaging in living L929 cells suggested the probe's future applications as a real-time analytical method for intracellular Fe3+ in clinical diagnosis. Besides, bioimaging applications enable the dynamic labelling and tracking of Fe3+ in biological systems.
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Affiliation(s)
- Zhao Cheng
- School of Pharmacy, Xi'an Medical University, Xi'an, Shaanxi 710021, PR China.
| | - Xiaojing Liu
- College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710127, PR China
| | - Lei Zheng
- School of Pharmacy, Xi'an Medical University, Xi'an, Shaanxi 710021, PR China.
| | - Yue Xu
- School of Pharmacy, Xi'an Medical University, Xi'an, Shaanxi 710021, PR China.
| | - Hao He
- School of Pharmacy, Xi'an Medical University, Xi'an, Shaanxi 710021, PR China.
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11
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Wang N, Hao Y, Feng X, Zhu H, Zhang D, Wang T, Cui X. Silicon-substituted rhodamines for stimulated emission depletion fluorescence nanoscopy. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Rajasekar M. Recent Trends in Rhodamine derivatives as fluorescent probes for biomaterial applications. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Broichhagen J, Kilian N. Chemical Biology Tools To Investigate Malaria Parasites. Chembiochem 2021; 22:2219-2236. [PMID: 33570245 PMCID: PMC8360121 DOI: 10.1002/cbic.202000882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/10/2021] [Indexed: 02/06/2023]
Abstract
Parasitic diseases like malaria tropica have been shaping human evolution and history since the beginning of mankind. After infection, the response of the human host ranges from asymptomatic to severe and may culminate in death. Therefore, proper examination of the parasite's biology is pivotal to deciphering unique molecular, biochemical and cell biological processes, which in turn ensure the identification of treatment strategies, such as potent drug targets and vaccine candidates. However, implementing molecular biology methods for genetic manipulation proves to be difficult for many parasite model organisms. The development of fast and straightforward applicable alternatives, for instance small-molecule probes from the field of chemical biology, is essential. In this review, we will recapitulate the highlights of previous molecular and chemical biology approaches that have already created insight and understanding of the malaria parasite Plasmodium falciparum. We discuss current developments from the field of chemical biology and explore how their application could advance research into this parasite in the future. We anticipate that the described approaches will help to close knowledge gaps in the biology of P. falciparum and we hope that researchers will be inspired to use these methods to gain knowledge - with the aim of ending this devastating disease.
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Affiliation(s)
- Johannes Broichhagen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP)Robert-Roessle-Strasse 1013125BerlinGermany
| | - Nicole Kilian
- Centre for Infectious DiseasesParasitologyHeidelberg University HospitalIm Neuenheimer Feld 32469120HeidelbergGermany
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14
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G. Keller S, Kamiya M, Urano Y. Recent Progress in Small Spirocyclic, Xanthene-Based Fluorescent Probes. Molecules 2020; 25:E5964. [PMID: 33339370 PMCID: PMC7766215 DOI: 10.3390/molecules25245964] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/14/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022] Open
Abstract
The use of fluorescent probes in a multitude of applications is still an expanding field. This review covers the recent progress made in small molecular, spirocyclic xanthene-based probes containing different heteroatoms (e.g., oxygen, silicon, carbon) in position 10'. After a short introduction, we will focus on applications like the interaction of probes with enzymes and targeted labeling of organelles and proteins, detection of small molecules, as well as their use in therapeutics or diagnostics and super-resolution microscopy. Furthermore, the last part will summarize recent advances in the synthesis and understanding of their structure-behavior relationship including novel computational approaches.
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Affiliation(s)
- Sascha G. Keller
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; (S.G.K.); (M.K.)
| | - Mako Kamiya
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; (S.G.K.); (M.K.)
| | - Yasuteru Urano
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; (S.G.K.); (M.K.)
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- AMED-CREST, Japan Agency for Medical Research and Development, 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
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15
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Lopez-Barbosa N, Garcia JG, Cifuentes J, Castro LM, Vargas F, Ostos C, Cardona-Gomez GP, Hernandez AM, Cruz JC. Multifunctional magnetite nanoparticles to enable delivery of siRNA for the potential treatment of Alzheimer's. Drug Deliv 2020; 27:864-875. [PMID: 32515999 PMCID: PMC8216449 DOI: 10.1080/10717544.2020.1775724] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/21/2020] [Accepted: 05/25/2020] [Indexed: 01/12/2023] Open
Abstract
Therapeutic drugs for Alzheimer's disease have been extensively studied due to its recurrence and abundance among neurodegenerative diseases. It is thought that the accumulation of amyloid precursor protein (APP) products, a consequence of an up-regulation of the β-site APP-cleaving enzyme 1 (BACE1), is the main triggering mechanism during the early stages of the disease. This study aims to explore the ability of a multifunctional conjugate based on magnetite nanoparticles for the cellular delivery of siRNA against the expression of the BACE1 gene. We immobilized the siRNA strand on PEGylated magnetite nanoparticles and investigated the effects on biocompatibility and efficacy of the conjugation. Similarly, we co-immobilized the translocating protein OmpA on PEGylated nanoparticles to enhance cellular uptake and endosomal escape. BACE1 suppression was statistically significant in HFF-1 cells, without any presence of a cytotoxic effect. The delivery of the nanoconjugate was achieved through endocytosis pathways, where endosome formation was likely escaped due to the proton-sponge effect characteristic of PEGylated nanoparticles or mainly by direct translocation in the case of OmpA/PEGylated nanoparticles.
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Affiliation(s)
| | - Juan G. Garcia
- Institute of Chemistry, CATALAD Research Group, Universidad de Antioquia UdeA, Medellin, Colombia
| | - Javier Cifuentes
- Department of Biomedical Engineering, Universidad de los Andes, Bogota, Colombia
| | - Lina M. Castro
- Institute of Chemistry, CATALAD Research Group, Universidad de Antioquia UdeA, Medellin, Colombia
| | - Felipe Vargas
- School of Medicine, Universidad de Antioquia UdeA, Medellin, Colombia
| | - Carlos Ostos
- Institute of Chemistry, CATALAD Research Group, Universidad de Antioquia UdeA, Medellin, Colombia
| | | | - Alher Mauricio Hernandez
- Engineering Faculty, Bioinstrumentation and Clinical Engineering Research Group – GIBIC, Bioengineering Department, Universidad de Antioquia UdeA, Medellin, Colombia
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Bogota, Colombia
- Engineering Faculty, Bioinstrumentation and Clinical Engineering Research Group – GIBIC, Bioengineering Department, Universidad de Antioquia UdeA, Medellin, Colombia
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16
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Keel KL, Tepe J. The preparation of (4H)-imidazol-4-ones and their application in the total synthesis of natural products. Org Chem Front 2020; 7:3284-3311. [PMID: 33796321 DOI: 10.1039/d0qo00764a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(4H)-Imidazol-4-ones are an important scaffold for a variety of applications, including natural products, medicine, agriculture, and other applications. Over the years, there have been a number of preparations published for the synthesis of imidazol-4-ones. This review discusses the progress made on the synthesis of imidazol-4-ones, and their application towards the total synthesis of a range of imidazol-4-one containing natural products. Emphasis is made on areas of the field that still need progress.
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17
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Yeo SK, Shepelytskyi Y, Grynko V, Albert MS. Molecular Imaging of Fluorinated Probes for Tau Protein and Amyloid-β Detection. Molecules 2020; 25:molecules25153413. [PMID: 32731418 PMCID: PMC7435578 DOI: 10.3390/molecules25153413] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 12/16/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common form of dementia and results in progressive neurodegeneration. The incidence rate of AD is increasing, creating a major public health issue. AD is characterized by neurofibrillary tangles (NFTs) composed of hyperphosphorylated tau protein and senile plaques composed of amyloid-β (Aβ). Currently, a definitive diagnosis of AD is accomplished post-mortem. Thus, the use of molecular probes that are able to selectively bind to NFTs or Aβ can be valuable tools for the accurate and early diagnosis of AD. The aim of this review is to summarize and highlight fluorinated molecular probes that can be used for molecular imaging to detect either NFTs or Aβ. Specifically, fluorinated molecular probes used in conjunction with 19F MRI, PET, and fluorescence imaging will be explored.
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Affiliation(s)
- Sarah K. Yeo
- Biology Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
| | - Yurii Shepelytskyi
- Chemistry and Materials Science Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (Y.S.); (V.G.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Vira Grynko
- Chemistry and Materials Science Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (Y.S.); (V.G.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Mitchell S. Albert
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
- Northern Ontario School of Medicine, Thunder Bay, ON P7B 5E1, Canada
- Correspondence: ; Tel.: +1-807-355-9191
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18
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Poc P, Gutzeit VA, Ast J, Lee J, Jones BJ, D'Este E, Mathes B, Lehmann M, Hodson DJ, Levitz J, Broichhagen J. Interrogating surface versus intracellular transmembrane receptor populations using cell-impermeable SNAP-tag substrates. Chem Sci 2020; 11:7871-7883. [PMID: 34123074 PMCID: PMC8163392 DOI: 10.1039/d0sc02794d] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/02/2020] [Indexed: 01/13/2023] Open
Abstract
Employing self-labelling protein tags for the attachment of fluorescent dyes has become a routine and powerful technique in optical microscopy to visualize and track fused proteins. However, membrane permeability of the dyes and the associated background signals can interfere with the analysis of extracellular labelling sites. Here we describe a novel approach to improve extracellular labelling by functionalizing the SNAP-tag substrate benzyl guanine ("BG") with a charged sulfonate ("SBG"). This chemical manipulation can be applied to any SNAP-tag substrate, improves solubility, reduces non-specific staining and renders the bioconjugation handle impermeable while leaving its cargo untouched. We report SBG-conjugated fluorophores across the visible spectrum, which cleanly label SNAP-fused proteins in the plasma membrane of living cells. We demonstrate the utility of SBG-conjugated fluorophores to interrogate class A, B and C G protein-coupled receptors (GPCRs) using a range of imaging approaches including nanoscopic superresolution imaging, analysis of GPCR trafficking from intra- and extracellular pools, in vivo labelling in mouse brain and analysis of receptor stoichiometry using single molecule pull down.
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Affiliation(s)
- Pascal Poc
- Max Planck Institute for Medical Research, Department of Chemical Biology Jahnstr. 29 69120 Heidelberg Germany
| | - Vanessa A Gutzeit
- Neuroscience Graduate Program, Weill Cornell Medicine New York NY 10065 USA
| | - Julia Ast
- Institute of Metabolism and Systems Research (IMSR), Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham Birmingham UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners Birmingham UK
| | - Joon Lee
- Department of Biochemistry, Weill Cornell Medicine New York NY 10065 USA
| | - Ben J Jones
- Section of Investigative Medicine, Imperial College London London W12 0NN UK
| | - Elisa D'Este
- Optical Microscopy Facility, Max Planck Institute for Medical Research Heidelberg Germany
| | - Bettina Mathes
- Max Planck Institute for Medical Research, Department of Chemical Biology Jahnstr. 29 69120 Heidelberg Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Department of Pharmacology and Cell Biology Robert-Rössle-Str. 10 13125 Berlin Germany
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR), Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham Birmingham UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners Birmingham UK
| | - Joshua Levitz
- Department of Biochemistry, Weill Cornell Medicine New York NY 10065 USA
- Tri-Institutional PhD Program in Chemical Biology New York NY 10065 USA
| | - Johannes Broichhagen
- Max Planck Institute for Medical Research, Department of Chemical Biology Jahnstr. 29 69120 Heidelberg Germany
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Department of Chemical Biology Robert-Rössle-Str. 10 13125 Berlin Germany
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19
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Biological Evaluation of Newly Synthesized Biaryl Guanidine Derivatives to Arrest β-Secretase Enzymatic Activity Involved in Alzheimer’s Disease. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8934289. [PMID: 32462027 PMCID: PMC7238388 DOI: 10.1155/2020/8934289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 03/20/2020] [Accepted: 04/17/2020] [Indexed: 11/17/2022]
Abstract
Proteases BACE1 (β-secretases) enzymes have been recognized as a promising target associated with Alzheimer's disease (AD). This study was carried out on the principles of molecular docking, chemical synthesis, and enzymatic inhibition of BACE1 enzymes via biaryl guanidine-based ligands. Based on virtual screening, thirteen different compounds were synthesized and subsequently evaluated via in vitro and in vivo studies. Among them, 1,3-bis(5,6-difluoropyridin-3-yl)guanidine (compound (9)) was found the most potent (IC50 = 97 ± 0.91 nM) and active to arrest (99%) β-secretase enzymes (FRET assay). Furthermore, it was found to improve the novel object recognition test and Morris water maze test significantly (p < 0.05). Improved pharmacokinetic parameters, viz., Log Po/w (1.76), Log S (-2.73), and better penetration to the brain (BBB permeation) with zero Lipinski violation, made it possible to hit the BACE1 as a potential therapeutic source for AD.
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20
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Karakaya S, Bingol Z, Koca M, Demirci B, Gulcin I, Baser KHC. Screening of non-alkaloid acetylcholinesterase and carbonic anhydrase isoenzymes inhibitors ofLeiotulus dasyanthus(K. Koch) Pimenov & Ostr. (Apiaceae). JOURNAL OF ESSENTIAL OIL RESEARCH 2020. [DOI: 10.1080/10412905.2020.1746415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Songul Karakaya
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Zeynebe Bingol
- Department of Medical Services and Techniques, Vocational School of Health Services, Gaziosmanpasa University, Tokat, Turkey
| | - Mehmet Koca
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Betül Demirci
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Ilhami Gulcin
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum, Turkey
| | - K. Hüsnü Can Baser
- Department of Pharmacognosy, Faculty of Pharmacy, Near East University, Nicosia, Northern Cyprus
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21
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Ast J, Arvaniti A, Fine NHF, Nasteska D, Ashford FB, Stamataki Z, Koszegi Z, Bacon A, Jones BJ, Lucey MA, Sasaki S, Brierley DI, Hastoy B, Tomas A, D'Agostino G, Reimann F, Lynn FC, Reissaus CA, Linnemann AK, D'Este E, Calebiro D, Trapp S, Johnsson K, Podewin T, Broichhagen J, Hodson DJ. Super-resolution microscopy compatible fluorescent probes reveal endogenous glucagon-like peptide-1 receptor distribution and dynamics. Nat Commun 2020; 11:467. [PMID: 31980626 PMCID: PMC6981144 DOI: 10.1038/s41467-020-14309-w] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 12/27/2019] [Indexed: 12/25/2022] Open
Abstract
The glucagon-like peptide-1 receptor (GLP1R) is a class B G protein-coupled receptor (GPCR) involved in metabolism. Presently, its visualization is limited to genetic manipulation, antibody detection or the use of probes that stimulate receptor activation. Herein, we present LUXendin645, a far-red fluorescent GLP1R antagonistic peptide label. LUXendin645 produces intense and specific membrane labeling throughout live and fixed tissue. GLP1R signaling can additionally be evoked when the receptor is allosterically modulated in the presence of LUXendin645. Using LUXendin645 and LUXendin651, we describe islet, brain and hESC-derived β-like cell GLP1R expression patterns, reveal higher-order GLP1R organization including membrane nanodomains, and track single receptor subpopulations. We furthermore show that the LUXendin backbone can be optimized for intravital two-photon imaging by installing a red fluorophore. Thus, our super-resolution compatible labeling probes allow visualization of endogenous GLP1R, and provide insight into class B GPCR distribution and dynamics both in vitro and in vivo. Glucagon-like peptide-1 receptor is an important regulator of appetite and glucose homeostasis. Here the authors describe super-resolution microscopy and in vivo imaging compatible fluorescent probes, which reveal endogenous glucagon-like peptide-1 receptor distribution and dynamics in islets and brain.
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Affiliation(s)
- Julia Ast
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Anastasia Arvaniti
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Nicholas H F Fine
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Daniela Nasteska
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Fiona B Ashford
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Zania Stamataki
- Centre for Liver Research, College of Medical and Dental Sciences, Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Zsombor Koszegi
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Andrea Bacon
- Genome Editing Facility, Technology Hub, University of Birmingham, Birmingham, UK
| | - Ben J Jones
- Division of Diabetes, Endocrinology and Metabolism, Section of Investigative Medicine, Imperial College London, London, UK
| | - Maria A Lucey
- Division of Diabetes, Endocrinology and Metabolism, Section of Investigative Medicine, Imperial College London, London, UK
| | - Shugo Sasaki
- Diabetes Research Group, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | - Daniel I Brierley
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London, UK
| | - Benoit Hastoy
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Alejandra Tomas
- Division of Diabetes, Endocrinology and Metabolism, Section of Cell Biology and Functional Genomics, Imperial College London, London, UK
| | - Giuseppe D'Agostino
- Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, UK
| | - Frank Reimann
- Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Francis C Lynn
- Diabetes Research Group, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | | | - Amelia K Linnemann
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Elisa D'Este
- Optical Microscopy Facility, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Davide Calebiro
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Stefan Trapp
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London, UK
| | - Kai Johnsson
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Tom Podewin
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany.
| | - Johannes Broichhagen
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany.
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK. .,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK.
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22
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Rhodamine probes for Fe3+: theoretical calculation for specific recognition and instant fluorescent bioimaging. Future Med Chem 2019; 11:1859-1869. [DOI: 10.4155/fmc-2019-0077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: To overcome the existing difficulty in distinguishing Fe(III) from Fe(II), rhodamine-containing Fe3+ probes, giving off different fluorescence responses to ferric and ferrous ions, were synthesized. Materials & methods: Color change in Fe3+ recognition, accompanying spirolactam opening–closing, could be used for ‘naked-eye’ detection. Theoretical calculations revealed the possible Fe3+-probe combination mechanism. Results: Apart from the probes’ specific response toward Fe3+, the Fe3+-probe demonstrated highly quantitative relationships in fluorescence titration, instant labeling and dynamic tracking of intracellular Fe3+ in bioimaging. Conclusion: Cytotoxity and bioimaging in living L929 suggested the probes’ future applications as real-time detection methods for Fe3+ in clinical diagnosis. Instant and time-lapse imagings, based on fluorescence-time stability of Fe3+-probe, enables the dynamic labeling and tracking of Fe3+ in living systems.
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23
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Karakaya S, Koca M, Yılmaz SV, Yıldırım K, Pınar NM, Demirci B, Brestic M, Sytar O. Molecular Docking Studies of Coumarins Isolated from Extracts and Essential Oils of Zosima absinthifolia Link as Potential Inhibitors for Alzheimer's Disease. Molecules 2019; 24:molecules24040722. [PMID: 30781573 PMCID: PMC6412260 DOI: 10.3390/molecules24040722] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 01/01/2023] Open
Abstract
Coumarins and essential oils are the major components of the Apiaceae family and the Zosima genus. The present study reports anticholinesterase and antioxidant activities of extracts and essential oils from aerial parts, roots, flowers, fruits and coumarins—bergapten (1); imperatorin (2), pimpinellin (3) and umbelliferone (4)—isolated of the roots from Zosima absinthifolia. The investigation by light and scanning electron microscopy of the structures of secretory canals found different chemical compositions in the various types of secretory canals which present in the aerial parts, fruits and flowers. The canals, present in the aerial parts, are characterized by terpene hydrocarbons, while the secretory canals of roots, flowers and fruits include esters. Novel data of a comparative study on essential oils constituents of aerial parts, roots, flowers and fruits of Z. absinthfolia has been presented. The roots and fruits extract showed a high content of total phenolics and antioxidant activity. The GC-FID and GC-MS analysis revealed that the main components of the aerial parts, roots, flowers and fruits extracts were octanol (8.8%), octyl octanoate (7.6%), octyl acetate (7.3%); trans-pinocarvyl acetate (26.7%), β-pinene (8.9%); octyl acetate (19.9%), trans-p-menth-2-en-1-ol (4.6%); octyl acetate (81.6%), and (Z)-4-octenyl acetate (5.1%). The dichloromethane fraction of fruit and flower essential oil was characterized by the highest phenolics level and antioxidant activity. The dichloromethane fraction of fruit had the best inhibition against butyrylcholinesterase enzyme (82.27 ± 1.97%) which was higher then acetylcholinesterase inhibition (61.09 ± 4.46%) of umbelliferone. This study shows that the flowers and fruit of Z. absinthifolia can be a new potential resource of natural antioxidant and anticholinesterase compounds.
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Affiliation(s)
- Songul Karakaya
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240 Erzurum, Turkey.
| | - Mehmet Koca
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, 25240 Erzurum, Turkey.
| | - Serdar Volkan Yılmaz
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240 Erzurum, Turkey.
| | - Kadir Yıldırım
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240 Erzurum, Turkey.
| | - Nur Münevver Pınar
- Department of Biology, Faculty of Science, Ankara University, 06560 Ankara, Turkey.
| | - Betül Demirci
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, 26210 Eskisehir, Turkey.
| | - Marian Brestic
- Department of Plant Physiology, Slovak Agricultural University in Nitra, 94976 Nitra, Slovak.
| | - Oksana Sytar
- Department of Plant Physiology, Slovak Agricultural University in Nitra, 94976 Nitra, Slovak.
- Department of Plant Biology, Educational and Scientific Center "Institute of Biology and Medicine", Kiev National University of Taras Shevchenko, Hlushkova Avenue, 2, 03127 Kyiv, Ukraine.
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24
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Wang L, Frei MS, Salim A, Johnsson K. Small-Molecule Fluorescent Probes for Live-Cell Super-Resolution Microscopy. J Am Chem Soc 2019; 141:2770-2781. [PMID: 30550714 DOI: 10.1021/jacs.8b11134] [Citation(s) in RCA: 284] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Super-resolution fluorescence microscopy is a powerful tool to visualize biomolecules and cellular structures at the nanometer scale. Employing these techniques in living cells has opened up the possibility to study dynamic processes with unprecedented spatial and temporal resolution. Different physical approaches to super-resolution microscopy have been introduced over the last years. A bottleneck to apply these approaches for live-cell imaging has become the availability of appropriate fluorescent probes that can be specifically attached to biomolecules. In this Perspective, we discuss the role of small-molecule fluorescent probes for live-cell super-resolution microscopy and the challenges that need to be overcome for their generation. Recent trends in the development of labeling strategies are reviewed together with the required chemical and spectroscopic properties of the probes. Finally, selected examples of the use of small-molecule fluorescent probes in live-cell super-resolution microscopy are given.
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Affiliation(s)
- Lu Wang
- Department of Chemical Biology , Max Planck Institute for Medical Research , Jahnstrasse 29 , 69120 Heidelberg , Germany
| | - Michelle S Frei
- Department of Chemical Biology , Max Planck Institute for Medical Research , Jahnstrasse 29 , 69120 Heidelberg , Germany.,Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Aleksandar Salim
- Department of Chemical Biology , Max Planck Institute for Medical Research , Jahnstrasse 29 , 69120 Heidelberg , Germany.,Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Kai Johnsson
- Department of Chemical Biology , Max Planck Institute for Medical Research , Jahnstrasse 29 , 69120 Heidelberg , Germany.,Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
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Fang X, Zheng Y, Duan Y, Liu Y, Zhong W. Recent Advances in Design of Fluorescence-Based Assays for High-Throughput Screening. Anal Chem 2019; 91:482-504. [PMID: 30481456 PMCID: PMC7262998 DOI: 10.1021/acs.analchem.8b05303] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaoni Fang
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yongzan Zheng
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yaokai Duan
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yang Liu
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92521, United States
| | - Wenwan Zhong
- Department of Chemistry, University of California, Riverside, California 92521, United States
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92521, United States
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