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Rejc L, Knez D, Molina-Aguirre G, Espargaró A, Kladnik J, Meden A, Blinc L, Lozinšek M, Jansen-van Vuuren RD, Rogan M, Martek BA, Mlakar J, Dremelj A, Petrič A, Gobec S, Sabaté R, Bresjanac M, Pinter B, Košmrlj J. Probing Alzheimer's pathology: Exploring the next generation of FDDNP analogues for amyloid β detection. Biomed Pharmacother 2024; 175:116616. [PMID: 38723516 DOI: 10.1016/j.biopha.2024.116616] [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: 01/19/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 06/03/2024] Open
Abstract
Fluorescent probes are a powerful tool for imaging amyloid β (Aβ) plaques, the hallmark of Alzheimer's disease (AD). Herein, we report the synthesis and comprehensive characterization of 21 novel probes as well as their optical properties and binding affinities to Aβ fibrils. One of these dyes, 1Ae, exhibited several improvements over FDDNP, an established biomarker for Aβ- and Tau-aggregates. First, 1Ae had large Stokes shifts (138-213 nm) in various solvents, thereby reducing self-absorption. With a high quantum yield ratio (φ(dichloromethane/methanol) = 104), 1Ae also ensures minimal background emission in aqueous environments and high sensitivity. In addition, compound 1Ae exhibited low micromolar binding affinity to Aβ fibrils in vitro (Kd = 1.603 µM), while increasing fluorescence emission (106-fold) compared to emission in buffer alone. Importantly, the selective binding of 1Ae to Aβ1-42 fibrils was confirmed by an in cellulo assay, supported by ex vivo fluorescence microscopy of 1Ae on postmortem AD brain sections, allowing unequivocal identification of Aβ plaques. The intermolecular interactions of fluorophores with Aβ were elucidated by docking studies and molecular dynamics simulations. Density functional theory calculations revealed the unique photophysics of these rod-shaped fluorophores, with a twisted intramolecular charge transfer (TICT) excited state. These results provide valuable insights into the future application of such probes as potential diagnostic tools for AD in vitro and ex vivo such as determination of Aβ1-42 in cerebrospinal fluid or blood.
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Affiliation(s)
- Luka Rejc
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Damijan Knez
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia
| | | | - Alba Espargaró
- Faculty of Pharmacy, Department of Pharmacy, Pharmaceutical Technology and Physical-Chemistry, Section of Physical-Chemistry, and Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona 08028, Spain
| | - Jerneja Kladnik
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Anže Meden
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia
| | - Lana Blinc
- Laboratory of Neural Plasticity and Regeneration (LNPR), Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, Ljubljana SI-1000, Slovenia
| | - Matic Lozinšek
- Jožef Stefan Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Ross D Jansen-van Vuuren
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Matic Rogan
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Bruno Aleksander Martek
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Jernej Mlakar
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, Ljubljana SI-1000, Slovenia
| | - Ana Dremelj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Andrej Petrič
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia
| | - Stanislav Gobec
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia.
| | - Raimon Sabaté
- Faculty of Pharmacy, Department of Pharmacy, Pharmaceutical Technology and Physical-Chemistry, Section of Physical-Chemistry, and Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Barcelona 08028, Spain.
| | - Mara Bresjanac
- Laboratory of Neural Plasticity and Regeneration (LNPR), Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, Ljubljana SI-1000, Slovenia.
| | - Balazs Pinter
- The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Janez Košmrlj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, Ljubljana SI-1000, Slovenia.
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Peng T, Qiu F, Qu Y, Yu C, Cheng X, Li L. Current and Future of "Turn-On" Based Small-Molecule Copper Probes for Cuproptosis. ChemistryOpen 2023; 12:e202300078. [PMID: 37705070 PMCID: PMC10499804 DOI: 10.1002/open.202300078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/20/2023] [Indexed: 09/15/2023] Open
Abstract
Increasing evidence shows that abnormal copper (Cu) metabolism is highly related to many diseases, such as Alzheimer's disease, Wilson's disease, hematological malignancies and Menkes disease. Very recently, cuproptosis, a Cu-dependent, programmed cell death was firstly described by Tsvetkov et al. in 2022. Their findings may provide a new perspective for the treatment of related diseases. However, the concrete mechanisms of these diseases, especially cuproptosis, remain completely unclear, the reason of which may be a lack of reliable tools to conduct highly selective, sensitive and high-resolution imaging of Cu in complex life systems. So far, numerous small-molecular fluorescent probes have been designed and utilized to explore the Cu signal pathway. Among them, fluorescence turn-on probes greatly enhance the resolution and accuracy of imaging and may be a promising tool for research of investigation into cuproptosis. This review summarizes the probes developed in the past decade which have the potential to study cuproptosis, focusing on the design strategies, luminescence mechanism and biological-imaging applications. Besides, we put forward some ideas concerning the design of next-generation probes for cuproptosis, aiming to tackle the main problems in this new field. Furthermore, the prospect of cuproptosis in the treatment of corresponding diseases is also highlighted.
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Affiliation(s)
- Ting‐En Peng
- Key Laboratory of Flexible Electronics (KLOFE) &Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center forAdvanced Materials (SICAM)Nanjing Tech UniversityNanjing211816China
| | - Feng Qiu
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech UniversityNanjing211816China
| | - Yunwei Qu
- The Institute of Flexible Electronics (IFE, Future Technologies)Xiamen UniversityXiamen361005China
| | - Changmin Yu
- Key Laboratory of Flexible Electronics (KLOFE) &Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center forAdvanced Materials (SICAM)Nanjing Tech UniversityNanjing211816China
| | - Xiamin Cheng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech UniversityNanjing211816China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) &Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center forAdvanced Materials (SICAM)Nanjing Tech UniversityNanjing211816China
- The Institute of Flexible Electronics (IFE, Future Technologies)Xiamen UniversityXiamen361005China
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3
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Emerging tetrapyrrole porous organic polymers for chemosensing applications. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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4
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Hu X, Tang R, Bai L, Liu S, Liang G, Sun X. CBT‐Cys click reaction for optical bioimaging in vivo. VIEW 2023. [DOI: 10.1002/viw.20220065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
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5
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Abdollahi A, Dashti A. Photosensing of Chain Polarity and Visualization of Latent Fingerprints by Amine-Functionalized Polymer Nanoparticles Containing Oxazolidine. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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6
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Development in Fluorescent OFF-ON Probes Based on Cu 2+ Promoted Hydrolysis Reaction of the Picolinate Moiety. J Fluoresc 2023; 33:401-411. [PMID: 36480123 DOI: 10.1007/s10895-022-03078-y] [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: 09/12/2022] [Accepted: 11/08/2022] [Indexed: 12/13/2022]
Abstract
Anions and cations have a key role in our normal life. Cu2+ ion is a crucial trace element accountable for the part of several cellular enzymes and proteins, including cytochrome c oxidase, dopamine monooxygenase, Cu/Zn superoxide dismutase, and ceruloplasmin. WHO has found the extreme acceptable level of Cu2+ ions in drinking water is up to 2.0 ppm. Excess use of Cu2+ ions is associated with various human genetic disorders. Thus, the visualization of Cu2+ ions to avoid its toxic effects in chemical and biological systems is significant. In this review we have summarized sensors based on catalytic hydrolysis of picolinate to detect Cu2+ ions. The sensors based on hydrolysis of picolinate are very selective as compared to the other sensors for Cu2+ ions detection. We have focused on describing the structure, spectral properties, detection limits, and bioimaging model of the sensors.
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7
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Tarai A, Li Y, Liu B, Zhang D, Li J, Yan W, Zhang J, Qu J, Yang Z. A review on recognition of tri-/tetra-analyte by using simple organic colorimetric and fluorometric probes. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214070] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Qin X, Li W, Yang X, Ma Z, Liang D, Luo X, Chen X, Hu S, Du L, Chai L, Li M. Photoinduced Electron Transfer-Based Fluorescent Agonists for α 1-Adrenergic Receptors Imaging. Anal Chem 2021; 93:6034-6042. [PMID: 33830731 DOI: 10.1021/acs.analchem.0c03841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The novel fluorescent agonists were discovered herein for α1-adrenergic receptors (α1-ARs) based on photoinduced electron transfer (PeT) off-on switch by conjugating the fluorophore 7-(diethylamino)coumarin-3-carboxylic acid with phenylephrine. After careful evaluation, these probes exhibited efficient binding affinity with α1-ARs and could be applied to selectively imaging α1-ARs or successfully tracing the dynamic process of α1-AR internalization in living cells. Meanwhile, a bioluminescence resonance energy transfer binding assay with these new probes has been well-established and applied. Therefore, these PeT-based on-off agonists may serve as powerful tools for the α1-AR-associated study during drug discovery.
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Affiliation(s)
- Xiaojun Qin
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China.,School of Pharmacy, Guangxi Medical University, Nanning, Guangxi 530021, P. R. China
| | - Wenhua Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xingye Yang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Zhao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China.,Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California-Davis, Sacramento, California 95817, United States
| | - Dong Liang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xiongfeng Luo
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xinxin Chen
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Shilong Hu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Lupei Du
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Lijuan Chai
- Department of Internal Medicine, Hospital of Shandong University, Jinan, Shandong 250012, P. R. China
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
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9
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Takakura H. Molecular Design of d-Luciferin-Based Bioluminescence and 1,2-Dioxetane-Based Chemiluminescence Substrates for Altered Output Wavelength and Detecting Various Molecules. Molecules 2021; 26:molecules26061618. [PMID: 33803935 PMCID: PMC7998607 DOI: 10.3390/molecules26061618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022] Open
Abstract
Optical imaging including fluorescence and luminescence is the most popular method for the in vivo imaging in mice. Luminescence imaging is considered to be superior to fluorescence imaging due to the lack of both autofluorescence and the scattering of excitation light. To date, various luciferin analogs and bioluminescence probes have been developed for deep tissue and molecular imaging. Recently, chemiluminescence probes have been developed based on a 1,2-dioxetane scaffold. In this review, the accumulated findings of numerous studies and the design strategies of bioluminescence and chemiluminescence imaging reagents are summarized.
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Affiliation(s)
- Hideo Takakura
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
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10
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Tian X, Murfin LC, Wu L, Lewis SE, James TD. Fluorescent small organic probes for biosensing. Chem Sci 2021; 12:3406-3426. [PMID: 34163615 PMCID: PMC8179477 DOI: 10.1039/d0sc06928k] [Citation(s) in RCA: 173] [Impact Index Per Article: 57.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 01/16/2021] [Indexed: 12/26/2022] Open
Abstract
Small-molecule based fluorescent probes are increasingly important for the detection and imaging of biological signaling molecules due to their simplicity, high selectivity and sensitivity, whilst being non-invasive, and suitable for real-time analysis of living systems. With this perspective we highlight sensing mechanisms including Förster resonance energy transfer (FRET), intramolecular charge transfer (ICT), photoinduced electron transfer (PeT), excited state intramolecular proton transfer (ESIPT), aggregation induced emission (AIE) and multiple modality fluorescence approaches including dual/triple sensing mechanisms (DSM or TSM). Throughout the perspective we highlight the remaining challenges and suggest potential directions for development towards improved small-molecule fluorescent probes suitable for biosensing.
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Affiliation(s)
- Xue Tian
- Department of Chemistry, University of Bath Bath BA2 7AY UK
| | - Lloyd C Murfin
- Department of Chemistry, University of Bath Bath BA2 7AY UK
| | - Luling Wu
- Department of Chemistry, University of Bath Bath BA2 7AY UK
| | - Simon E Lewis
- Department of Chemistry, University of Bath Bath BA2 7AY UK
| | - Tony D James
- Department of Chemistry, University of Bath Bath BA2 7AY UK
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang 453007 P. R. China
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11
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12
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Deng HH, Huang KY, He SB, Xue LP, Peng HP, Zha DJ, Sun WM, Xia XH, Chen W. Rational Design of High-Performance Donor-Linker-Acceptor Hybrids Using a Schiff Base for Enabling Photoinduced Electron Transfer. Anal Chem 2020; 92:2019-2026. [PMID: 31854983 DOI: 10.1021/acs.analchem.9b04434] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Donor-linker-acceptor (D-L-A)-based photoinduced electron transfer (PET) has been frequently used for the construction of versatile fluorescent chemo/biosensors. However, sophisticated and tedious processes are generally required for the synthesis of these probes, which leads to poor design flexibility. In this work, by exploiting a Schiff base as a linker unit, a covalently bound D-L-A system was established and subsequently utilized for the development of a PET sensor. Cysteamine (Cys) and N-acetyl-l-cysteine (NAC) costabilized gold nanoclusters (Cys/NAC-AuNCs) were synthesized and adopted as an electron acceptor, and pyridoxal phosphate (PLP) was selected as an electron donor. PLP can form a Schiff base (an aldimine) with the primary amino group of Cys/NAC-AuNC through its aldehyde group and thereby suppresses the fluorescence of Cys/NAC-AuNC. The Rehm-Weller formula results and a HOMO-LUMO orbital study revealed that a reductive PET mechanism is responsible for the observed fluorescence quenching. Since the pyridoxal (PL) produced by the acid phosphatase (ACP)-catalyzed cleavage of PLP has a weak interaction with Cys/NAC-AuNC, a novel turn-on fluorescent method for selective detection of ACP was successfully realized. To the best of our knowledge, this is the first example of the development of a covalently bound D-L-A system for fluorescent PET sensing of enzyme activity based on AuNC nanoprobes using a Schiff base.
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Affiliation(s)
- Hao-Hua Deng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Kai-Yuan Huang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Shao-Bin He
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Li-Ping Xue
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Hua-Ping Peng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Dai-Jun Zha
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Wei-Ming Sun
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy , Fujian Medical University , Fuzhou , Fujian 350004 , China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou , Fujian 350004 , China
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13
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Wright GD, Yao CY, Moody TS, de Silva AP. Fluorescent molecular logic gates based on photoinduced electron transfer (PET) driven by a combination of atomic and biomolecular inputs. Chem Commun (Camb) 2020; 56:6838-6841. [DOI: 10.1039/d0cc00478b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A meeting point for entities from chemistry, enzymology and computer science.
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Affiliation(s)
- Glenn D. Wright
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
| | - Chao-Yi Yao
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
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14
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Zhang N, Wang Y, Leng S, Xu S, Zhang L, Wang Q, Zhang Q, Hu HY. An efficient fluorescence sensor for nitroreductase selective imaging based on intramolecular photoinduced electron transfer. Talanta 2019; 205:120133. [DOI: 10.1016/j.talanta.2019.120133] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/02/2019] [Accepted: 07/08/2019] [Indexed: 01/06/2023]
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15
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Renault K, Debieu S, Richard JA, Romieu A. Deeper insight into protease-sensitive "covalent-assembly" fluorescent probes for practical biosensing applications. Org Biomol Chem 2019; 17:8918-8932. [PMID: 31560014 DOI: 10.1039/c9ob01773a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report a rational and systematic study devoted to the structural optimisation of a novel class of protease-sensitive fluorescent probes that we recently reported (S. Debieu and A. Romieu, Org. Biomol. Chem., 2017, 15, 2575-2584), based on the "covalent-assembly" strategy and using the targeted enzyme penicillin G acylase as a model protease to build a fluorescent pyronin dye by triggering a biocompatible domino cyclisation-aromatisation reaction. The aim is to identify ad hoc probe candidate(s) that might combine fast/reliable fluorogenic "turn-on" response, full stability in complex biological media and ability to release a second molecule of interest (drug or second fluorescent reporter), for applications in disease diagnosis and therapy. We base our strategy on screening a set of active methylene compounds (C-nucleophiles) to convert the parent probe to various pyronin caged precursors bearing Michael acceptor moieties of differing reactivities. In vitro stability and fluorescent enzymatic assays combined with HPLC-fluorescence analyses provide data useful for defining the most appropriate structural features for these fluorogenic scaffolds depending on the specifications inherent to biological application (from biosensing to theranostics) for which they will be used.
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Affiliation(s)
- Kévin Renault
- ICMUB, UMR 6302, CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21000 Dijon, France.
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Mandal D, Das S. Dissipation of Pyrene-Based Phenylboronic Acid-Anchored Vesicular Self-Assemblies: A Motif for Neurotransmitter Recognition. ChemistrySelect 2019. [DOI: 10.1002/slct.201803092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Deep Mandal
- Department of Chemistry; Jadavpur University; Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
| | - Suman Das
- Department of Chemistry; Jadavpur University; Raja S. C. Mullick Road, Jadavpur Kolkata 700 032 India
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17
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Mandal D, Das S. Glucose-triggered dissolution of phenylboronic acid-functionalized cholesterol-based niosomal self-assembly for tuneable drug release. NEW J CHEM 2019. [DOI: 10.1039/c9nj00798a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Cholesterol-containing phenylboronic acid-based niosomal self-assemblies showed glucose-responsive dissolution and release of an encapsulated drug.
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Affiliation(s)
- Deep Mandal
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Suman Das
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
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18
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Renault K, Fredy JW, Renard PY, Sabot C. Covalent Modification of Biomolecules through Maleimide-Based Labeling Strategies. Bioconjug Chem 2018; 29:2497-2513. [PMID: 29954169 DOI: 10.1021/acs.bioconjchem.8b00252] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Since their first use in bioconjugation more than 50 years ago, maleimides have become privileged chemical partners for the site-selective modification of proteins via thio-Michael addition of biothiols and, to a lesser extent, via Diels-Alder (DA) reactions with biocompatible dienes. Prominent examples include immunotoxins and marketed maleimide-based antibody-drug conjugates (ADCs) such as Adcetris, which are used in cancer therapies. Among the key factors in the success of these groups is the availability of several maleimides that can be N-functionalized by fluorophores, affinity tags, spin labels, and pharmacophores, as well as their unique reactivities in terms of selectivity and kinetics. However, maleimide conjugate reactions have long been considered irreversible, and only recently have systematic studies regarding their reversibility and stability toward hydrolysis been reported. This review provides an overview of the diverse applications for maleimides in bioconjugation, highlighting their strengths and weaknesses, which are being overcome by recent strategies. Finally, the fluorescence quenching ability of maleimides was leveraged for the preparation of fluorogenic probes, which are mainly used for the specific detection of thiol analytes. A summary of the reported structures, their photophysical features, and their relative efficiencies is discussed in the last part of the review.
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Affiliation(s)
- Kévin Renault
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
| | - Jean Wilfried Fredy
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
| | - Pierre-Yves Renard
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
| | - Cyrille Sabot
- Normandie Univ, CNRS, UNIROUEN, INSA Rouen, COBRA (UMR 6014) , 76000 Rouen , France
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Cheng SW, Han T, Huang TY, Tang BZ, Liou GS. High-performance electrofluorochromic devices based on aromatic polyamides with AIE-active tetraphenylethene and electro-active triphenylamine moieties. Polym Chem 2018. [DOI: 10.1039/c8py00809d] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Novel electrochromic (EC) and aggregation-enhanced emission (AEE)-active triphenylamine (TPA)-based polyamides were prepared and fabricated into electrofluorochromic (EFC) devices.
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Affiliation(s)
- Shun-Wen Cheng
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei City 10617
- Taiwan
| | - Ting Han
- Department of Chemistry
- The Hong Kong University of Science & Technology
- Kowloon
- China
| | - Teng-Yung Huang
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei City 10617
- Taiwan
| | - Ben-Zhong Tang
- Department of Chemistry
- The Hong Kong University of Science & Technology
- Kowloon
- China
| | - Guey-Sheng Liou
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei City 10617
- Taiwan
- Advanced Research Center for Green Materials Science and Technology
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20
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McLaughlin B, Surender EM, Wright GD, Daly B, de Silva AP. Lighting-up protein–ligand interactions with fluorescent PET (photoinduced electron transfer) sensor designs. Chem Commun (Camb) 2018; 54:1319-1322. [DOI: 10.1039/c7cc05929a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Extending the versatile fluorescent PET sensing/switching system causes ‘off–on’ signalling when a ligand binds to its appropriate protein.
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Affiliation(s)
- Bernard McLaughlin
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
| | - Esther M. Surender
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
| | - Glenn D. Wright
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
| | - Brian Daly
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
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21
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James TD. Specialty Grand Challenges in Supramolecular Chemistry. Front Chem 2017; 5:83. [PMID: 29090209 PMCID: PMC5650973 DOI: 10.3389/fchem.2017.00083] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/04/2017] [Indexed: 01/28/2023] Open
Affiliation(s)
- Tony D James
- Department of Chemistry, University of Bath, Bath, United Kingdom
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22
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Liu S, Wang YM, Han J. Fluorescent chemosensors for copper(II) ion: Structure, mechanism and application. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.06.002] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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23
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24
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Glowacka PC, Maindron N, Stephenson GR, Romieu A, Renard PY, da Silva Emery F. Synthesis and photophysical properties of iron-carbonyl complex–coumarin conjugates as potential bimodal IR–fluorescent probes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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25
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Ong MJH, Srinivasan R, Romieu A, Richard JA. Divergent Synthesis of Dihydroxanthene-Hemicyanine Fused Near-Infrared Fluorophores through the Late-Stage Amination of a Bifunctional Precursor. Org Lett 2016; 18:5122-5125. [DOI: 10.1021/acs.orglett.6b02564] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Michelle Jui Hsien Ong
- Organic
Chemistry, Institute of Chemical and Engineering Sciences (ICES),
Agency for Science, Technology and Research (A*STAR), 8 Biomedical
Grove, Neuros, #07-01, Singapore, Singapore 138665
| | - Rajavel Srinivasan
- Organic
Chemistry, Institute of Chemical and Engineering Sciences (ICES),
Agency for Science, Technology and Research (A*STAR), 8 Biomedical
Grove, Neuros, #07-01, Singapore, Singapore 138665
| | - Anthony Romieu
- ICMUB, UMR 6302,
CNRS, Univ. Bourgogne Franche-Comté, 9, Avenue Alain Savary, 21078 Dijon cedex, France
- Institut Universitaire de France, 103 Boulevard Saint-Michel, 75005 Paris, France
| | - Jean-Alexandre Richard
- Organic
Chemistry, Institute of Chemical and Engineering Sciences (ICES),
Agency for Science, Technology and Research (A*STAR), 8 Biomedical
Grove, Neuros, #07-01, Singapore, Singapore 138665
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26
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Kumar Verma R, Takei F, Nakatani K. Synthesis and Photophysical Properties of Fluorescence Molecular Probe for Turn-ON-Type Detection of Cytosine Bulge DNA. Org Lett 2016; 18:3170-3. [DOI: 10.1021/acs.orglett.6b01378] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Rajiv Kumar Verma
- Department
of Regulatory Bioorganic Chemistry, The Institute of Scientific and
Industrial Research, Osaka University, Mihogaoka, 8-1,
Ibaraki, Osaka 567-0047, Japan
| | - Fumie Takei
- National Defense Medical College, Namiki, 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Kazuhiko Nakatani
- Department
of Regulatory Bioorganic Chemistry, The Institute of Scientific and
Industrial Research, Osaka University, Mihogaoka, 8-1,
Ibaraki, Osaka 567-0047, Japan
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27
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Yin J, Hu Y, Yoon J. Fluorescent probes and bioimaging: alkali metals, alkaline earth metals and pH. Chem Soc Rev 2016; 44:4619-44. [PMID: 25317749 DOI: 10.1039/c4cs00275j] [Citation(s) in RCA: 417] [Impact Index Per Article: 52.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
All living species and life forms have an absolute requirement for bio-functional metals and acid-base equilibrium chemistry owing to the critical roles they play in biological processes. Hence, a great need exists for efficient methods to detect and monitor biometals and acids. In the last few years, great attention has been paid to the development of organic molecule based fluorescent chemosensors. The availability of new synthetic fluorescent probes has made fluorescence microscopy an indispensable tool for tracing biologically important molecules and in the area of clinical diagnostics. This review highlights the recent advances that have been made in the design and bioimaging applications of fluorescent probes for alkali metals and alkaline earth metal cations, including lithium, sodium and potassium, magnesium and calcium, and for pH determination within biological systems.
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Affiliation(s)
- Jun Yin
- Department of Chemistry and Nano Science, Global Top 5 Research Program, Ewha Womans University, Seoul 120-750, Korea.
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28
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Wang XL, Li XJ, Sun R, Xu YJ, Ge JF. A comparative study of lysosome-targetable pH probes based on phenoxazinium attached with aliphatic and aromatic amines. Analyst 2016; 141:2962-9. [DOI: 10.1039/c6an00258g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phenoxazinium was used as a fluorophore for the design of pH probes by the photoinduced electron transfer (PET) mechanism.
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Affiliation(s)
- Xiu-Li Wang
- College of Chemistry
- Chemical Engineering and Material Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Soochow University
- Suzhou 215123
| | - Xiao-Jun Li
- School of Radiation Medicine and Protection
- Medicine College of Soochow University
- Suzhou 215123
- China
| | - Ru Sun
- College of Chemistry
- Chemical Engineering and Material Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Soochow University
- Suzhou 215123
| | - Yu-Jie Xu
- School of Radiation Medicine and Protection
- Medicine College of Soochow University
- Suzhou 215123
- China
| | - Jian-Feng Ge
- College of Chemistry
- Chemical Engineering and Material Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Soochow University
- Suzhou 215123
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29
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Deng H, Zhao E, Leung ACS, Hu R, Zhang Y, Lam JWY, Tang BZ. Multicomponent sequential polymerizations of alkynes, carbonyl chloride and amino ester salts toward helical and luminescent polymers. Polym Chem 2016. [DOI: 10.1039/c6py00024j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sequential coupling-hydroamination polymerizations toward helical and luminescent polymers.
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Affiliation(s)
- Haiqin Deng
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Engui Zhao
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Anakin C. S. Leung
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Rongrong Hu
- Guangdong Innovative Research Team
- SCUT-HKUST Joint Research Laboratory
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology (SCUT)
- Guangzhou 510640
| | - Yun Zhang
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Jacky W. Y. Lam
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Ben Zhong Tang
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
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30
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Raju M, Patel TJ, Nair RR, Chatterjee PB. Xanthurenic acid: a natural ionophore with high selectivity and sensitivity for potassium ions in an aqueous solution. NEW J CHEM 2016. [DOI: 10.1039/c5nj02540k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synopsis: A well-known tryptophan metabolite, xanthurenic acid, a natural non-fluorescent intermediate siderophore, showed a very selective turn-on response to K+ over other competing metal ions and the detection limit of this natural ionophore was found to be 53 nM at physiological pH.
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Affiliation(s)
- M. Raju
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
| | - Tapasya J. Patel
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
| | - Ratish R. Nair
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
| | - Pabitra B. Chatterjee
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
- Academy of Scientific and Innovative Research
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31
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Wang MQ, Zhu WX, Song ZZ, Li S, Zhang YZ. A triphenylamine-based colorimetric and fluorescent probe with donor–bridge–acceptor structure for detection of G-quadruplex DNA. Bioorg Med Chem Lett 2015; 25:5672-6. [DOI: 10.1016/j.bmcl.2015.11.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/16/2015] [Accepted: 11/04/2015] [Indexed: 11/15/2022]
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32
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Roubinet B, Massif C, Moreau M, Boschetti F, Ulrich G, Ziessel R, Renard PY, Romieu A. New 3-(Heteroaryl)-2-iminocoumarin-based Borate Complexes: Synthesis, Photophysical Properties, and Rational Functionalization for Biosensing/Biolabeling Applications. Chemistry 2015; 21:14589-601. [DOI: 10.1002/chem.201502126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Indexed: 01/26/2023]
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33
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34
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Chen H, Wang H, Qin XJ, Chen C, Feng L, Chen LZ, Du LP, Li MY. A bestatin-based fluorescent probe for aminopeptidase N cell imaging. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.01.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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35
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Liu Z, Wang B, Ma Z, Zhou Y, Du L, Li M. Fluorogenic probe for the human Ether-a-Go-Go-Related Gene potassium channel imaging. Anal Chem 2015; 87:2550-4. [PMID: 25665091 PMCID: PMC4374661 DOI: 10.1021/ac504763b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
The
first small-molecule fluorogenic probe A1 for imaging the human Ether-a-go-go-Related
Gene (hERG) potassium channel based on the photoinduced electron transfer
(PET) off–on mechanism was described herein. After careful
biological evaluation, this probe had the potential of detecting and
imaging the hERG channel at the molecular and cellular level. Moreover,
the competitive binding mechanism of this probe would presumably minimize
the effects on the electrophysiological properties of the hERG channel.
Therefore, this probe may serve as a powerful toolkit to the hERG-associated
study.
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Affiliation(s)
- Zhenzhen Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University , Jinan, Shandong 250012, China
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36
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Deng H, He Z, Lam JWY, Tang BZ. Regio- and stereoselective construction of stimuli-responsive macromolecules by a sequential coupling-hydroamination polymerization route. Polym Chem 2015. [DOI: 10.1039/c5py01424g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sequential coupling-hydroamination polymerization towards stimuli-responsive polymers.
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Affiliation(s)
- Haiqin Deng
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Institute for Advanced Study
| | - Zikai He
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Institute for Advanced Study
| | - Jacky W. Y. Lam
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Institute for Advanced Study
| | - Ben Zhong Tang
- HKUST-Shenzhen Research Institute
- Nanshan
- China
- Department of Chemistry
- Institute for Advanced Study
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37
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Romieu A. “AND” luminescent “reactive” molecular logic gates: a gateway to multi-analyte bioimaging and biosensing. Org Biomol Chem 2015; 13:1294-306. [DOI: 10.1039/c4ob02076f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This feature article focuses on the recent development of “AND” luminescent molecular logic gates, in which the optical output is produced in response to multiple (bio)chemical inputs and through cascades of covalent bond-modifying reactions triggered by target (bio)analytes, for biosensing and bioimaging applications in complex media.
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Affiliation(s)
- Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR CNRS 6302
- Université de Bourgogne
- 21078 Dijon
- France
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38
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Daly B, Ling J, de Silva AP. Current developments in fluorescent PET (photoinduced electron transfer) sensors and switches. Chem Soc Rev 2015; 44:4203-11. [DOI: 10.1039/c4cs00334a] [Citation(s) in RCA: 370] [Impact Index Per Article: 41.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A fluorophore can be combined with a receptor according to a molecular engineering design in order to yield fluorescent sensing and switching devices.
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Affiliation(s)
- Brian Daly
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
| | - Jue Ling
- School of Chemistry and Chemical Engineering
- Queen's University
- Belfast BT9 5AG
- UK
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39
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Deng H, Hu R, Leung ACS, Zhao E, Lam JWY, Tang BZ. Construction of regio- and stereoregular poly(enaminone)s by multicomponent tandem polymerizations of diynes, diaroyl chloride and primary amines. Polym Chem 2015. [DOI: 10.1039/c5py00477b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An atom-economical multicomponent tandem polymerization was developed to afford multifunctional regio- and stereoregular conjugated poly(enaminone)s.
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Affiliation(s)
- Haiqin Deng
- Department of Chemistry
- Institute for Advanced Study
- Institute of Molecular Functional Materials
- Division of Biomedical Engineering
- Division of Life Science and State Key Laboratory of Molecular Neuroscience
| | - Rongrong Hu
- Department of Chemistry
- Institute for Advanced Study
- Institute of Molecular Functional Materials
- Division of Biomedical Engineering
- Division of Life Science and State Key Laboratory of Molecular Neuroscience
| | - Anakin C. S. Leung
- Department of Chemistry
- Institute for Advanced Study
- Institute of Molecular Functional Materials
- Division of Biomedical Engineering
- Division of Life Science and State Key Laboratory of Molecular Neuroscience
| | - Engui Zhao
- Department of Chemistry
- Institute for Advanced Study
- Institute of Molecular Functional Materials
- Division of Biomedical Engineering
- Division of Life Science and State Key Laboratory of Molecular Neuroscience
| | - Jacky W. Y. Lam
- Department of Chemistry
- Institute for Advanced Study
- Institute of Molecular Functional Materials
- Division of Biomedical Engineering
- Division of Life Science and State Key Laboratory of Molecular Neuroscience
| | - Ben Zhong Tang
- Department of Chemistry
- Institute for Advanced Study
- Institute of Molecular Functional Materials
- Division of Biomedical Engineering
- Division of Life Science and State Key Laboratory of Molecular Neuroscience
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40
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Chevalier A, Renault K, Boschetti F, Renard PY, Romieu A. Rapid Synthesis of Unsymmetrical Sulforhodamines Through Nucleophilic Amination of a Monobrominated Sulfoxanthene Dye. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403165] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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41
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Ma Z, Du L, Li M. Toward fluorescent probes for G-protein-coupled receptors (GPCRs). J Med Chem 2014; 57:8187-203. [PMID: 24983484 DOI: 10.1021/jm401823z] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
G-protein-coupled receptors (GPCRs), a superfamily of cell-surface receptors that are the targets of about 40% of prescription drugs on the market, can sense numerous critical extracellular signals. Recent breakthroughs in structural biology, especially in holo-form X-ray crystal structures, have contributed to our understanding of GPCR signaling. However, actions of GPCRs at the cellular and molecular level, interactions between GPCRs, and the role of protein dynamics in receptor activities still remain controversial. To overcome these dilemmas, fluorescent probes of GPCRs have been employed, which have advantages of in vivo safety and real-time monitoring. Various probes that depend on specific mechanisms and/or technologies have been used to study GPCRs. The present review focuses on surveying the design and applications of fluorescent probes for GPCRs that are derived from small molecules or using protein-labeling techniques, as well as discussing some design strategies for new probes.
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Affiliation(s)
- Zhao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University , Jinan, Shandong 250012, China
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