1
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Caulfield C, Wu D, Garre M, O'Shea DF. Substituent directed cellular imaging in the 800-850 nm range with BF 2-azadipyrromethene fluorophores. RSC Adv 2023; 13:14963-14973. [PMID: 37200702 PMCID: PMC10186590 DOI: 10.1039/d2ra07942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 05/02/2023] [Indexed: 05/20/2023] Open
Abstract
Three bis(anilino)-substituted NIR-AZA fluorophores have been designed, synthesized and tested to bridge the availability gap of molecular fluorophores for live-cell microscopy imaging in the 800-850 nm spectral range. The concise synthetic route allows for the later stage introduction of three tailored peripheral substituents which guides the sub-cellular localization and imaging. Live-cell fluorescence imaging of lipid droplets, plasma membrane and cytosolic vacuoles was successfully achieved. Photophysical and internal charge transfer (ICT) properties of each fluorophore were examined through solvent studies and analyte responses.
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Affiliation(s)
- Cathal Caulfield
- Department of Chemistry, RCSI 123 St. Stephen's Green Dublin 2 Ireland
| | - Dan Wu
- Department of Chemistry, RCSI 123 St. Stephen's Green Dublin 2 Ireland
| | | | - Donal F O'Shea
- Department of Chemistry, RCSI 123 St. Stephen's Green Dublin 2 Ireland
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2
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Brandner L, Müller TJJ. Multicomponent synthesis of chromophores – The one-pot approach to functional π-systems. Front Chem 2023; 11:1124209. [PMID: 37007054 PMCID: PMC10065161 DOI: 10.3389/fchem.2023.1124209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/26/2023] [Indexed: 03/19/2023] Open
Abstract
Multicomponent reactions, conducted in a domino, sequential or consecutive fashion, have not only considerably enhanced synthetic efficiency as one-pot methodology, but they have also become an enabling tool for interdisciplinary research. The highly diversity-oriented nature of the synthetic concept allows accessing huge structural and functional space. Already some decades ago this has been recognized for life sciences, in particular, lead finding and exploration in pharma and agricultural chemistry. The quest for novel functional materials has also opened the field for diversity-oriented syntheses of functional π-systems, i.e. dyes for photonic and electronic applications based on their electronic properties. This review summarizes recent developments in MCR syntheses of functional chromophores highlighting syntheses following either the framework forming scaffold approach by establishing connectivity between chromophores or the chromogenic chromophore approach by de novo formation of chromophore of interest. Both approaches warrant rapid access to molecular functional π-systems, i.e. chromophores, fluorophores, and electrophores for various applications.
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3
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Collot M, Pfister S, Klymchenko AS. Advanced functional fluorescent probes for cell plasma membranes. Curr Opin Chem Biol 2022; 69:102161. [DOI: 10.1016/j.cbpa.2022.102161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 11/03/2022]
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4
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Bourguet E, Figurska S, Fra Czek MM. Human Neuraminidases: Structures and Stereoselective Inhibitors. J Med Chem 2022; 65:3002-3025. [PMID: 35170942 DOI: 10.1021/acs.jmedchem.1c01612] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This Perspective describes the classification, structures, substrates, mechanisms of action, and implications of human neuraminidases (hNEUs) in various pathologies. Some inhibitors have been developed for each isoform, leading to more precise interactions with hNEUs. Although crystal structure data are available for NEU2, most of the findings are based on NEU1 inhibition, and limited information is available for other hNEUs. Therefore, the synthesis of new compounds would facilitate the enrichment of the arsenal of inhibitors to better understand the roles of hNEUs and their mechanisms of action. Nevertheless, due to the already known inhibitors of human neuraminidase enzymes, a structure-activity relationship is presented along with different approaches to inhibit these enzymes for the development of potent and selective inhibitors. Among the different emerging strategies, one is the inhibition of the dimerization of NEU1 or NEU3, and the second is the inhibition of certain receptors located close to hNEU.
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Affiliation(s)
- Erika Bourguet
- Université de Reims Champagne-Ardenne, Institut de Chimie Moléculaire de Reims (ICMR), CNRS UMR 7312, 51097 Reims, France
| | - Sylwia Figurska
- Université de Reims Champagne-Ardenne, Institut de Chimie Moléculaire de Reims (ICMR), CNRS UMR 7312, 51097 Reims, France.,Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Manuela Maria Fra Czek
- Université de Reims Champagne-Ardenne, Institut de Chimie Moléculaire de Reims (ICMR), CNRS UMR 7312, 51097 Reims, France.,Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
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5
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Borgarelli C, Klingl YE, Escamilla-Ayala A, Munck S, Van Den Bosch L, De Borggraeve WM, Ismalaj E. Lighting Up the Plasma Membrane: Development and Applications of Fluorescent Ligands for Transmembrane Proteins. Chemistry 2021; 27:8605-8641. [PMID: 33733502 DOI: 10.1002/chem.202100296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Indexed: 12/16/2022]
Abstract
Despite the fact that transmembrane proteins represent the main therapeutic targets for decades, complete and in-depth knowledge about their biochemical and pharmacological profiling is not fully available. In this regard, target-tailored small-molecule fluorescent ligands are a viable approach to fill in the missing pieces of the puzzle. Such tools, coupled with the ability of high-precision optical techniques to image with an unprecedented resolution at a single-molecule level, helped unraveling many of the conundrums related to plasma proteins' life-cycle and druggability. Herein, we review the recent progress made during the last two decades in fluorescent ligand design and potential applications in fluorescence microscopy of voltage-gated ion channels, ligand-gated ion channels and G-coupled protein receptors.
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Affiliation(s)
- Carlotta Borgarelli
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven Campus Arenberg Celestijnenlaan 200F -, box 2404, 3001, Leuven, Belgium
| | - Yvonne E Klingl
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Laboratory of Neurobiology, VIB, Center for Brain &, Disease Research, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Abril Escamilla-Ayala
- Center for Brain & Disease Research, & VIB BioImaging Core, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Department of Neurosciences, Leuven Brain Institute, KU Leuven, Campus Gasthuisberg O&N5 - box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Sebastian Munck
- Center for Brain & Disease Research, & VIB BioImaging Core, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Department of Neurosciences, Leuven Brain Institute, KU Leuven, Campus Gasthuisberg O&N5 - box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Ludo Van Den Bosch
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Laboratory of Neurobiology, VIB, Center for Brain &, Disease Research, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Wim M De Borggraeve
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven Campus Arenberg Celestijnenlaan 200F -, box 2404, 3001, Leuven, Belgium
| | - Ermal Ismalaj
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven Campus Arenberg Celestijnenlaan 200F -, box 2404, 3001, Leuven, Belgium
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6
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Sayed SM, Jia HR, Jiang YW, Zhu YX, Ma L, Yin F, Hussain I, Khan A, Ma Q, Wu FG, Lu X. Photostable AIE probes for wash-free, ultrafast, and high-quality plasma membrane staining. J Mater Chem B 2021; 9:4303-4308. [PMID: 33908594 DOI: 10.1039/d1tb00049g] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Plasma membrane (PM), a fundamental building component of a cell, is responsible for a variety of cell functions and biological processes. However, it is still challenging to acquire its morphology and morphological variation information via an effective approach. Herein, we report a PM imaging study regarding an aggregation-induced emission luminogen (AIEgen) called tetraphenylethylene-naphthalimide+ (TPE-NIM+), which is derived from our previously reported tetraphenylethylene-naphthalimide (TPE-NIM). The designed AIEgen (TPE-NIM+) shows significant characteristics of ultrafast staining, high photostability, wash-free property, and long retention time at the PM, which can structurally be correlated with its positively charged quaternary amine and hydrophobic moiety. TPE-NIM+ is further applied for staining of different cell lines, proving its universal PM imaging capability. Most importantly, we demonstrate that TPE-NIM+ can clearly delineate the contours of densely packed living cells with high cytocompatibility. Therefore, TPE-NIM+ as a PM imaging reagent superior to currently available commercial PM dyes shall find a number of applications in the biological/biomedical fields and even beyond.
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Affiliation(s)
- Sayed Mir Sayed
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Hao-Ran Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Yao-Wen Jiang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Ya-Xuan Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Liang Ma
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Feifei Yin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Imtiaz Hussain
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Arshad Khan
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Qian Ma
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
| | - Xiaolin Lu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
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7
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Mizuguchi T, Nuriya M. Applications of second harmonic generation (SHG)/sum-frequency generation (SFG) imaging for biophysical characterization of the plasma membrane. Biophys Rev 2020; 12:10.1007/s12551-020-00768-4. [PMID: 33108561 PMCID: PMC7755958 DOI: 10.1007/s12551-020-00768-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 10/20/2020] [Indexed: 12/12/2022] Open
Abstract
The plasma membrane is a lipid bilayer of < 10 nm width that separates intra- and extra-cellular environments and serves as the site of cell-cell communication, as well as communication between cells and the extracellular environment. As such, biophysical phenomena at and around the plasma membrane play key roles in determining cellular physiology and pathophysiology. Thus, the selective visualization and characterization of the plasma membrane are crucial aspects of research in wide areas of biology and medicine. However, the specific characterization of the plasma membrane has been a challenge using conventional imaging techniques, which are unable to effectively distinguish between signals arising from the plasma membrane and those from intracellular lipid structures. In this regard, interface-specific second harmonic generation (SHG) and sum-frequency generation (SFG) imaging demonstrate great potential. When combined with exogenous SHG/SFG active dyes, SHG/SFG can specifically highlight the plasma membrane as the most prominent interface associated with cells. Furthermore, SHG/SFG imaging can be readily extended to multimodal multiphoton microscopy with simultaneous occurrence of other multiphoton phenomena, including multiphoton excitation and coherent Raman scattering, which shed light on the biophysical properties of the plasma membrane from different perspectives. Here, we review traditional and current applications, as well as the prospects of long-known but unexplored SHG/SFG imaging techniques in biophysics, with special focus on their use in the biophysical characterization of the plasma membrane.
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Affiliation(s)
- Takaha Mizuguchi
- Department of Pharmacology School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Mutsuo Nuriya
- Department of Pharmacology School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Kawaguchi, Saitama, 332-0012, Japan.
- Keio Advanced Research Center for Water Biology and Medicine, Keio University, 2-15-45 Mita, Minato-ku, Tokyo, 108-8345, Japan.
- Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya, Yokohama, Kanagawa, 240-8501, Japan.
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8
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Xiong M, Liu Q, Tang D, Liu L, Kong G, Fu X, Yang C, Lyu Y, Meng HM, Ke G, Zhang XB. “Apollo Program” in Nanoscale: Landing and Exploring Cell-Surface with DNA Nanotechnology. ACS APPLIED BIO MATERIALS 2020; 3:2723-2742. [DOI: 10.1021/acsabm.9b01193] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Mengyi Xiong
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Qin Liu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Decui Tang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Lu Liu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Gezhi Kong
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Xiaoyi Fu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Chan Yang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Yifan Lyu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Hong-Min Meng
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Guoliang Ke
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, P. R. China
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9
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Zhao N, Li Y, Yin W, Zhuang J, Jia Q, Wang Z, Li N. Controllable Coumarin-Based NIR Fluorophores: Selective Subcellular Imaging, Cell Membrane Potential Indication, and Enhanced Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:2076-2086. [PMID: 31847517 DOI: 10.1021/acsami.9b18666] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Fluorescent materials with advanced functionalities provide powerful tools to visualize subcellular microstructures and monitor subcellular dynamic functions, which significantly boost our understanding of complex biological phenomena and manipulation of biological behaviors. However, realization of diverse biological applications from a single molecular backbone is still a challenging endeavor. In this contribution, a series of coumarin-based cationic fluorophores (Cou-n, n = 1-4) with near-infrared emission (675 nm) and large Stokes shifts (110 nm) have been developed. Considering their excellent biocompatibilities and alkyl chain-dependent lipophilicities, Cou-1 and Cou-3 could selectively and ultrafast (<30 s) stain the cell plasma membrane and mitochondria in a washing-free manner, respectively. Meanwhile, Cou-1 could sensitively respond to the change of the plasma membrane potential, which enabled Cou-1 to successfully indicate the cell passage number. Taking advantage of specific mitochondria targeting as well as efficient singlet oxygen generation, Cou-3 exhibited enhanced photodynamic therapy (PDT) effect for tumor inhibition in vivo. In addition, the suitable lipophilicity of Cou-3 aided it in selectively imaging Gram-positive bacteria and efficiently killing bacteria by the PDT process.
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Affiliation(s)
- Na Zhao
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, and School of Chemistry & Chemical Engineering , Shaanxi Normal University , 710119 Xi'an , China
| | - Yue Li
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, and School of Chemistry & Chemical Engineering , Shaanxi Normal University , 710119 Xi'an , China
| | - Wei Yin
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, and School of Chemistry & Chemical Engineering , Shaanxi Normal University , 710119 Xi'an , China
| | - Jiabao Zhuang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, and School of Chemistry & Chemical Engineering , Shaanxi Normal University , 710119 Xi'an , China
| | - Qian Jia
- School of Life Science and Technology , Xidian University , 710126 Xi'an , China
| | - Zhongliang Wang
- School of Life Science and Technology , Xidian University , 710126 Xi'an , China
| | - Nan Li
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, and School of Chemistry & Chemical Engineering , Shaanxi Normal University , 710119 Xi'an , China
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10
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Ochs M, Mayer B, Müller TJJ. Unimolecular Exciplexes by Ugi Four-Component Reaction. Front Chem 2019; 7:717. [PMID: 31737597 PMCID: PMC6838752 DOI: 10.3389/fchem.2019.00717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/10/2019] [Indexed: 12/28/2022] Open
Abstract
Exciplex or excited complex emission is an excited state process, arising from considerable charge transfer of an excited energy donor to an acceptor, which can be identified by the occurrence of a redshifted emission band that is absent in the individual constituents. Particularly interesting are exciplexes that are formed by intramolecular excited state interaction, which are inherently concentration independent. Based upon our previous experience in the Ugi-4CR syntheses of donor-acceptor conjugates capable of photo-induced intramolecular electron transfer (PIET), that is, generation of light-induced charge separation, we now disclose the diversity-oriented approach on unimolecular exciplex emitters and their reference systems by Ugi-4CR. The photophysics is studied by absorption and emission spectroscopy and accompanied by density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations.
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Affiliation(s)
- Maria Ochs
- Institut für Organische Chemie and Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
- Ernst-Berl Institut für Technische and Makromolekulare Chemie, Technische Universität Darmstadt, Darmstadt, Germany
| | - Bernhard Mayer
- Institut für Organische Chemie and Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie and Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
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11
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Mousseau F, Berret JF, Oikonomou EK. Design and Applications of a Fluorescent Labeling Technique for Lipid and Surfactant Preformed Vesicles. ACS OMEGA 2019; 4:10485-10493. [PMID: 31460145 PMCID: PMC6648494 DOI: 10.1021/acsomega.9b01094] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/05/2019] [Indexed: 05/27/2023]
Abstract
Amphiphilic molecules such as surfactants, lipids, and block copolymers can be assembled into bilayers and form vesicles. Fluorescent membrane labeling methods require the use of dye molecules that can be inserted into the bilayers at different stages of synthesis. To our knowledge, there is no generalized method for labeling preformed vesicles. Herein, we develop a versatile protocol that is suitable to both surfactant and lipid preformed vesicles and requires no separation or purification steps. On the basis of the lipophilic carbocyanine green dye PKH67, the methodology is assessed on zwitterionic phosphatidylcholine vesicles. To demonstrate its versatility, it is applied to dispersions of anionic or cationic vesicles, such as a drug administrated to premature infants with respiratory distress syndrome, or a vesicle formulation used as a fabric softener for home care applications. By means of fluorescence microscopy, we then visualize the interaction mechanisms of nanoparticles crossing live cell membranes and of surfactants adsorbed on a cotton fabric. These results highlight the advantages of a membrane labeling technique that is simple and applicable to a large number of soft matter systems.
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Affiliation(s)
- Fanny Mousseau
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Jean-François Berret
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Evdokia K. Oikonomou
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
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12
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Diversity-oriented synthesis of blue emissive nitrogen heterocycles and their conjugation with carbon nano-onions. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-019-1833-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Müller TJJ. Multi-component synthesis of fluorophores via catalytic generation of alkynoyl intermediates. DRUG DISCOVERY TODAY. TECHNOLOGIES 2018; 29:19-26. [PMID: 30471669 DOI: 10.1016/j.ddtec.2018.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 06/08/2018] [Indexed: 06/09/2023]
Abstract
This account summarizes recent developments of aggregation-induced emissive and emission solvatochromic fluorophores by multicomponent reactions. Key intermediates are catalytically generated alkynoyl derivatives that are directly transformed into luminophores in a one-pot fashion. The conciseness in combination with ready access to tailored chromophore libraries makes this synthetic methodological concept superior over classical multistep syntheses.
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Affiliation(s)
- Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany.
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14
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Wu D, Cheung S, Sampedro G, Chen ZL, Cahill RA, O'Shea DF. A DIE responsive NIR-fluorescent cell membrane probe. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2272-2280. [PMID: 30409523 DOI: 10.1016/j.bbamem.2018.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 08/30/2018] [Accepted: 09/06/2018] [Indexed: 11/26/2022]
Abstract
It is challenging to achieve selective off to on modulation of the emissive state of a fluorophore within a complex and heterogeneous cellular environment. Herein we show that the dis-assembly of a non-fluorescent aggregate to produce individual fluorescent molecules, termed disaggregation induced emission (DIE), can be utilised to achieve this goal with an amphiphilic BF2-azadipyrromethene (NIR-AZA) probe. Optical near-infrared properties of the NIR-AZA probe used in this study include absorption and emission maxima at 700 and 726 nm respectively when in the emissive non-aggregated state. Key to the success of the probe is the bis-sulfonic acid substitution of the NIR-AZA fluorophore, which is atypical for membrane probes as it does not contain zwitterionic lipid substituents. The aggregation/disaggregation properties of the NIR-fluorophore have been investigated in model surfactant and synthetic liposomal systems and shown to be emissive responsive to both. Real-time live cell imaging experiments in HeLa Kyoto and MC3T3 cells showed a rapid switch on of emission specific to the plasma membrane of viable and apoptotic cells attributable to a disaggregation-induced emission of the probe. Image analysis software confirmed localisation of fluorescence to the plasma membrane. Cell membrane staining was also effective for formaldehyde fixed cells, with staining possible either before or after fixation. This study adds new and important findings to recent developments of DIE responsive probes and further applications of this controllable emission-switching event are anticipated.
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Affiliation(s)
- Dan Wu
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | - Shane Cheung
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | - Gonzalo Sampedro
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | - Zhi-Long Chen
- Department of Pharmaceutical Science & Technology, College of Chemistry and Biology, Donghua University, Shanghai 201620, China
| | - Ronan A Cahill
- Department of Surgery, Mater Misericordiae University Hospital (MMUH), School of Medicine, University College Dublin, Dublin, Ireland
| | - Donal F O'Shea
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland.
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15
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Schönhaber J, D'Souza DM, Glißmann T, Mayer B, Janiak C, Rominger F, Frank W, Müller TJJ. Domino Insertion-Coupling Synthesis of Solid-State Luminescent Propynylidene Indolones. Chemistry 2018; 24:14712-14723. [DOI: 10.1002/chem.201802237] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/10/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Jan Schönhaber
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Daniel M. D'Souza
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69198 Heidelberg Germany
| | - Tobias Glißmann
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Bernhard Mayer
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69198 Heidelberg Germany
| | - Walter Frank
- Institut für Anorganische Chemie und Strukturchemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69198 Heidelberg Germany
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16
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Hunter CD, Guo T, Daskhan G, Richards MR, Cairo CW. Synthetic Strategies for Modified Glycosphingolipids and Their Design as Probes. Chem Rev 2018; 118:8188-8241. [DOI: 10.1021/acs.chemrev.8b00070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Carmanah D. Hunter
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Tianlin Guo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Gour Daskhan
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michele R. Richards
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Christopher W. Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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17
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Merkt FK, Müller TJJ. Solid State and Aggregation Induced Emissive Chromophores by Multi-component Syntheses. Isr J Chem 2018. [DOI: 10.1002/ijch.201800058] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Franziska K. Merkt
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstrasse 1 D-40225 Düsseldorf Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstrasse 1 D-40225 Düsseldorf Germany
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18
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Peng P, Li H, Bai L, Wang L, Chen B, Yu C, Zhang C, Ge J, Li L, Huang W. Photocontrollable Fluorogenic Probe for Visualizing Near‐Membrane Hypochlorite in Live Cells. ChemistrySelect 2018. [DOI: 10.1002/slct.201800777] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pingping Peng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Hao Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Lei Bai
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Liulin Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Buxiang Chen
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Changmin Yu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Chengwu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Jingyan Ge
- Key Laboratory of Bioorganic Synthesis of Zhejiang ProvinceCollege of Biotechnology and BioengineeringZhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) Nanjing 211816 China
- Shanxi Institute of Flexible Electronics (SIFE)Northwestern Polytechnical University 127 West Youyi Road Xi'an 710072, P. R. China
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19
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Ermakova EV, Arslanov VV. Analytical micelles containing amphiphilic aminoanthraquinone solvatochromic reporter receptor. COLLOID JOURNAL 2017. [DOI: 10.1134/s1061933x17060060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Affiliation(s)
- Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
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21
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Xu W, Zeng Z, Jiang JH, Chang YT, Yuan L. Wahrnehmung der chemischen Prozesse in einzelnen Organellen mit niedermolekularen Fluoreszenzsonden. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510721] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wang Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 Volksrepublik China
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapur
- Laboratory of Bioimaging Probe Development, A*STAR; Singapur
- Department of Chemistry; Stanford University; USA
| | - Zebing Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 Volksrepublik China
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 Volksrepublik China
| | - Young-Tae Chang
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapur
- Laboratory of Bioimaging Probe Development, A*STAR; Singapur
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 Volksrepublik China
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22
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Xu W, Zeng Z, Jiang JH, Chang YT, Yuan L. Discerning the Chemistry in Individual Organelles with Small-Molecule Fluorescent Probes. Angew Chem Int Ed Engl 2016; 55:13658-13699. [DOI: 10.1002/anie.201510721] [Citation(s) in RCA: 526] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Wang Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
- Laboratory of Bioimaging Probe Development, A*STAR; Singapore
- Department of Chemistry; Stanford University; USA
| | - Zebing Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Young-Tae Chang
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
- Laboratory of Bioimaging Probe Development, A*STAR; Singapore
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
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23
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Moni L, Gers-Panther CF, Anselmo M, Müller TJJ, Riva R. Highly Convergent Synthesis of Intensively Blue Emissive Furo[2,3-c
]isoquinolines by a Palladium-Catalyzed Cyclization Cascade of Unsaturated Ugi Products. Chemistry 2016; 22:2020-2031. [DOI: 10.1002/chem.201504335] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Lisa Moni
- Dipartimento di Chimica e Chimica Industriale; University of Genova; Via Dodecaneso 31 16146 Genova Italy
| | - Charlotte F. Gers-Panther
- Institut für Organische Chemie und Makromoleculare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Manuel Anselmo
- Dipartimento di Chimica e Chimica Industriale; University of Genova; Via Dodecaneso 31 16146 Genova Italy
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromoleculare Chemie; Heinrich-Heine-Universität Düsseldorf; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Renata Riva
- Dipartimento di Chimica e Chimica Industriale; University of Genova; Via Dodecaneso 31 16146 Genova Italy
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24
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Zhang W, Ma Z, Li W, Li G, Chen L, Liu Z, Du L, Li M. Discovery of Quinazoline-Based Fluorescent Probes to α1-Adrenergic Receptors. ACS Med Chem Lett 2015; 6:502-6. [PMID: 26005522 DOI: 10.1021/ml5004298] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 03/30/2015] [Indexed: 11/28/2022] Open
Abstract
α1-Adrenergic receptors (α1-ARs), as the essential members of G protein-coupled receptors (GPCRs), can mediate numerous physiological responses in the sympathetic nervous system. In the current research, a series of quinazoline-based small-molecule fluorescent probes to α1-ARs (1a-1e), including two parts, a pharmacophore for α1-AR recognition and a fluorophore for visualization, were well designed and synthesized. The biological evaluation results displayed that these probes held reasonable fluorescent properties, high affinity, accepted cell toxicity, and excellent subcellular localization imaging potential for α1-ARs.
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Affiliation(s)
- Wei Zhang
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Zhao Ma
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Wenhua Li
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Geng Li
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Laizhong Chen
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Zhenzhen Liu
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Lupei Du
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Minyong Li
- Department of Medicinal Chemistry,
Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
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25
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Yang GY, Li C, Fischer M, Cairo CW, Feng Y, Withers SG. A FRET Probe for Cell-Based Imaging of Ganglioside-Processing Enzyme Activity and High-Throughput Screening. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411747] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Yang GY, Li C, Fischer M, Cairo CW, Feng Y, Withers SG. A FRET Probe for Cell-Based Imaging of Ganglioside-Processing Enzyme Activity and High-Throughput Screening. Angew Chem Int Ed Engl 2015; 54:5389-93. [DOI: 10.1002/anie.201411747] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/01/2014] [Indexed: 11/11/2022]
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27
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Kreder R, Oncul S, Kucherak OA, Pyrshev KA, Real E, Mély Y, Klymchenko AS. Blue fluorogenic probes for cell plasma membranes fill the gap in multicolour imaging. RSC Adv 2015. [DOI: 10.1039/c4ra16225k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Newly synthesized blue membrane probes, due to high brightness, large Stokes shift and fluorogenic response, overcome the problem of cell auto-fluorescence and enable multicolor cellular imaging with common green and red markers.
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Affiliation(s)
- Rémy Kreder
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
| | - Sule Oncul
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
- Istanbul Medeniyet University
- School of Medicine
| | - Oleksandr A. Kucherak
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
| | - Kyrylo A. Pyrshev
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
- Laboratory of Nanobiotechnologies
- Department of Molecular immunology
| | - Eleonore Real
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
| | - Yves Mély
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
| | - Andrey S. Klymchenko
- Laboratoire de Biophotonique et Pharmacologie UMR 7213 CNRS/Université de Strasbourg
- Illkirch
- France
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28
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Moni L, Denissen M, Valentini G, Müller TJJ, Riva R. Diversity-oriented synthesis of intensively blue emissive 3-hydroxyisoquinolines by sequential Ugi four-component reaction/reductive Heck cyclization. Chemistry 2014; 21:753-62. [PMID: 25369792 DOI: 10.1002/chem.201404209] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/09/2022]
Abstract
A convergent approach to highly functionalized 3-hydroxyisoquinolines is reported. The key steps are an Ugi multicomponent reaction and a subsequent intramolecular reductive Heck reaction; these can also be performed as a one-pot procedure. The structures display very interesting properties as blue-fluorescence emitters. Photophysical studies on the absorption and static fluorescence indicate that the substitution pattern on the pyridyl part influences the optical properties only to a minor extent, unless the amide substituent becomes sterically demanding and leads to significant nonradiative deactivation. The donor substitution on the benzo core considerably enhances the fluorescence quantum yields and trimethoxy substitution causes a pronounced redshift of the emission bands. Protonation of the isoquinolyl nitrogen atom causes efficient static quenching of the fluorescence.
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Affiliation(s)
- Lisa Moni
- Dipartimento di Chimica e Chimica Industriale, University of Genova, Via Dodecaneso 31, 16146 Genova (Italy)
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29
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Bay S, Müller TJJ. Phenothiazine-Aromatic Hydrocarbon Acceptor Dyads as Photo-induced Electron Transfer Systems by Ugi Four-Component Reaction. ACTA ACUST UNITED AC 2014. [DOI: 10.5560/znb.2014-4060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A phenothiazinyl donor moiety can be covalently coupled to aromatic hydrocarbon acceptor units via Ugi four-component reaction in an efficient, rapid, and highly convergent fashion. These novel phenothiazine-acceptor dyads are electronically decoupled in the electronic ground state according to UV/Vis spectroscopy and cyclic voltammetry. In the excited state the inherent acceptor luminescence is substantially quenched. Calculations of the Gibbs energy of photo-induced electron transfer from readily available UV/Vis spectroscopic and cyclovoltammetric data according to the Weller approximation rationalizes the feasibility of the reductive electron transfer from phenothiazine to the aromatic hydrocarbon upon photoexcitation.
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Affiliation(s)
- Sarah Bay
- Heinrich-Heine Universität Düsseldorf, Institut für Organische Chemie und Makromolekulare Chemie, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Thomas J. J. Müller
- Heinrich-Heine Universität Düsseldorf, Institut für Organische Chemie und Makromolekulare Chemie, Universitätsstraße 1, D-40225 Düsseldorf, Germany
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30
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Bay S, Makhloufi G, Janiak C, Müller TJJ. The Ugi four-component reaction as a concise modular synthetic tool for photo-induced electron transfer donor-anthraquinone dyads. Beilstein J Org Chem 2014; 10:1006-16. [PMID: 24991251 PMCID: PMC4077531 DOI: 10.3762/bjoc.10.100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 04/03/2014] [Indexed: 12/13/2022] Open
Abstract
Phenothiazinyl and carbazolyl-donor moieties can be covalently coupled to an anthraquinone acceptor unit through an Ugi four-component reaction in a rapid, highly convergent fashion and with moderate to good yields. These novel donor–acceptor dyads are electronically decoupled in the electronic ground state according to UV–vis spectroscopy and cyclic voltammetry. However, in the excited state the inherent donor luminescence is efficiently quenched. Previously performed femtosecond spectroscopic measurements account for a rapid exergonic depopulation of the excited singlet states into a charge-separated state. Calculations of the Gibbs energy of photo-induced electron transfer from readily available UV–vis spectroscopic and cyclovoltammetric data applying the Weller approximation enables a quick evaluation of these novel donor–acceptor dyads. In addition, the X-ray structure of a phenothiazinyl–anthraquinone dyad supports short donor–acceptor distances by an intramolecular π-stacking conformation, an important assumption also implied in the calculations of the Gibbs energies according to the Weller approximation.
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Affiliation(s)
- Sarah Bay
- Heinrich-Heine Universität Düsseldorf, Institut für Organische Chemie und Makromolekulare Chemie, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Gamall Makhloufi
- Heinrich-Heine Universität Düsseldorf, Institut für Anorganische Chemie und Strukturchemie, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Christoph Janiak
- Heinrich-Heine Universität Düsseldorf, Institut für Anorganische Chemie und Strukturchemie, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Thomas J J Müller
- Heinrich-Heine Universität Düsseldorf, Institut für Organische Chemie und Makromolekulare Chemie, Universitätsstraße 1, D-40225 Düsseldorf, Germany
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31
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Amaral MF, Deliberto LA, de Souza CR, Naal RM, Naal Z, Clososki GC. Synthesis, photophysical, and electrochemical properties of 2,5-diaryl-indolizines. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.11.105] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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García-Beltrán O, Yañez O, Caballero J, Galdámez A, Mena N, Nuñez MT, Cassels BK. Synthesis of coumarin derivatives as fluorescent probes for membrane and cell dynamics studies. Eur J Med Chem 2014; 76:79-86. [PMID: 24576613 DOI: 10.1016/j.ejmech.2014.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 11/13/2013] [Accepted: 02/08/2014] [Indexed: 01/07/2023]
Abstract
Three coumarin-derived fluorescent probes, 3-acetyl-7-[(6-bromohexyl)oxy]-2H-chromen-2-one (FM1), 7-[(6-bromohexyl)oxy]-4-methyl-2H-chromen-2-one (FM2) and ethyl 2-{7-[(6-bromohexyl)oxy]-2-oxo-2H-chromen-4-yl}acetate (FM3), are described, with their photophysical constants. The compounds were tested in preliminary studies employing epifluorescence microscopy demonstrating that they allow the imaging of human neuroblastoma SH-SY5Y cell membranes. The structure of FM3 was confirmed by X-ray crystallographic analysis. Molecular dynamics (MD) simulations were used to characterize the localization and interactions of the studied compounds with a lipid bilayer model of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC).
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Affiliation(s)
- Olimpo García-Beltrán
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago, Chile; Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, Ibagué, Colombia.
| | - Osvaldo Yañez
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile
| | - Julio Caballero
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile
| | - Antonio Galdámez
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago, Chile
| | - Natalia Mena
- Department of Biology, Faculty of Sciences, University of Chile, Santiago, Chile
| | - Marco T Nuñez
- Department of Biology, Faculty of Sciences, University of Chile, Santiago, Chile
| | - Bruce K Cassels
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago, Chile
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33
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Muschelknautz C, Visse R, Nordmann J, Müller TJJ. One-pot three-component synthesis and photophysical characteristics of novel triene merocyanines. Beilstein J Org Chem 2014; 10:599-612. [PMID: 24778710 PMCID: PMC3999876 DOI: 10.3762/bjoc.10.51] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 01/28/2014] [Indexed: 01/10/2023] Open
Abstract
Novel triene merocyanines, i.e. 1-styryleth-2-enylidene and 4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylideneindolones are obtained in good to excellent yields in a consecutive three-component insertion Sonogashira coupling-addition sequence. The selectivity of either series is remarkable and has its origin in the stepwise character of the terminal addition step as shown by extensive computations on the DFT level. All merocyanines display intense absorption bands in solution and the film spectra indicate J-aggregation. While 1-styryleth-2-enylideneindolones show an intense deep red emission in films, 4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylideneindolones are essentially nonemissive in films or in the solid state. TD-DFT computations rationalize the charge-transfer nature of the characteristic broad long-wavelength absorptions bands.
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Affiliation(s)
- Christian Muschelknautz
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Robin Visse
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Jan Nordmann
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
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Li C, Key JA, Jia F, Dandapat A, Hur S, Cairo CW. Practical labeling methodology for choline-derived lipids and applications in live cell fluorescence imaging. Photochem Photobiol 2014; 90:686-95. [PMID: 24383866 DOI: 10.1111/php.12234] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 12/24/2013] [Indexed: 12/18/2022]
Abstract
Lipids of the plasma membrane participate in a variety of biological processes, and methods to probe their function and cellular location are essential to understanding biochemical mechanisms. Previous reports have established that phosphocholine-containing lipids can be labeled by alkyne groups through metabolic incorporation. Herein, we have tested alkyne, azide and ketone-containing derivatives of choline as metabolic labels of choline-containing lipids in cells. We also show that 17-octadecynoic acid can be used as a complementary metabolic label for lipid acyl chains. We provide methods for the synthesis of cyanine-based dyes that are reactive with alkyne, azide and ketone metabolic labels. Using an improved method for fluorophore conjugation to azide or alkyne-modified lipids by Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC), we apply this methodology in cells. Lipid-labeled cell membranes were then interrogated using flow cytometry and fluorescence microscopy. Furthermore, we explored the utility of this labeling strategy for use in live cell experiments. We demonstrate measurements of lipid dynamics (lateral mobility) by fluorescence photobleaching recovery (FPR). In addition, we show that adhesion of cells to specific surfaces can be accomplished by chemically linking membrane lipids to a functionalized surface. The strategies described provide robust methods for introducing bioorthogonal labels into native lipids.
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Affiliation(s)
- Caishun Li
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton Alberta, T6G 2G2, Canada
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35
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Abstract
A review of known small molecule inhibitors and substrates of the human neuraminidase enzymes.
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Affiliation(s)
- Christopher W. Cairo
- Alberta Glycomics Centre
- Department of Chemistry
- University of Alberta
- Edmonton Alberta
- Canada
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36
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Consecutive three-component synthesis of film luminescent indolone merocyanines with L-amino acid ester donors. Chem Heterocycl Compd (N Y) 2013. [DOI: 10.1007/s10593-013-1320-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Xia Y, Peng L. Photoactivatable Lipid Probes for Studying Biomembranes by Photoaffinity Labeling. Chem Rev 2013; 113:7880-929. [DOI: 10.1021/cr300419p] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yi Xia
- Aix-Marseille Université, Centre Interdisciplinaire de Nanoscience de Marseille, CNRS UMR 7325, Campus de Luminy, 13288 Marseille, France
| | - Ling Peng
- Aix-Marseille Université, Centre Interdisciplinaire de Nanoscience de Marseille, CNRS UMR 7325, Campus de Luminy, 13288 Marseille, France
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38
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Unusual reactivity of 1-aminoanthraquinone in copper catalyzed multicomponent reaction with isatins and aryl alkynes: synthesis and photophysical properties of regioisomeric fluorescent 3-spiroheterocyclic 2-oxindoles. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.02.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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39
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Otterstrom J, van Oijen AM. Visualization of membrane fusion, one particle at a time. Biochemistry 2013; 52:1654-68. [PMID: 23421412 DOI: 10.1021/bi301573w] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Protein-mediated fusion between phospholipid bilayers is a fundamental and necessary mechanism for many cellular processes. The short-lived nature of the intermediate states visited during fusion makes it challenging to capture precise kinetic information using classical, ensemble-averaging biophysical techniques. Recently, a number of single-particle fluorescence microscopy-based assays that allow researchers to obtain highly quantitative data about the fusion process by observing individual fusion events in real time have been developed. These assays depend upon changes in the acquired fluorescence signal to provide a direct readout for transitions between the various fusion intermediates. The resulting data yield meaningful and detailed kinetic information about the transitory states en route to productive membrane fusion. In this review, we highlight recent in vitro and in vivo studies of membrane fusion at the single-particle level in the contexts of viral membrane fusion and SNARE-mediated synaptic vesicle fusion. These studies afford insight into mechanisms of coordination between fusion-mediating proteins as well as coordination of the overall fusion process with other cellular processes. The development of single-particle approaches to investigate membrane fusion and their successful application to a number of model systems have resulted in a new experimental paradigm and open up considerable opportunities to extend these methods to other biological processes that involve membrane fusion.
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Affiliation(s)
- Jason Otterstrom
- Harvard Biophysics Program, Harvard Medical School , 240 Longwood Avenue, Boston, Massachusetts 02115, United States
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40
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Key JA, Cairo CW, McDonald R. 5-(1-Benzyl-1H-1,2,3-triazol-4-yl)-2,1,3-benzoxadiazole. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3130-1. [PMID: 23284454 PMCID: PMC3515234 DOI: 10.1107/s1600536812041827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 10/05/2012] [Indexed: 11/26/2022]
Abstract
In the title compound, C15H11N5O, which was prepared as part of a study to identify fluorogenic substrates for the Cu-catalysed azide–alkyne cycloaddition (CuAAC) reaction, the benzoxadiazole unit and the triazole ring are much more closely coplanar [dihedral angle = 10.92 (7)°] than either is to the benzyl group [dihedral angles = 69.13 (3)° and 78.20 (4)°, respectively]. The crystal structure features two different sets of weak intermolecular C—H⋯N interactions between adjacent benzoxadiazole and triazole rings, forming a chain that propagates in the [-110] direction parallel to the ab plane.
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Affiliation(s)
- Jessie A Key
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
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41
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Key JA, Cairo CW, Ferguson MJ. 5-(4-Hexyl-1H-1,2,3-triazol-1-yl)-2,1,3-benzoxadiazole. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3128-9. [PMID: 23284453 PMCID: PMC3515233 DOI: 10.1107/s1600536812041815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 10/05/2012] [Indexed: 11/10/2022]
Abstract
The title compound, C14H17N5O, a 1,2,3-triazole derivative of benzoxadiazole (C14H17N5O), was synthesized via Cu-catalysed azide–alkyne cycloaddition (CuAAC) from the corresponding n-octyne and 4-azidobenzoxadiazole. The benzoxadiazole and triazole rings show a roughly planar orientation [dihedral angle between the ring planes = 12.18 (5)°]. The alkane chain adopts a zigzag conformation, which deviates from the central triazole ring by 20.89 (6)°. These two torsion angles result in an overall twist to the structure, with a dihedral angle of 32.86 (7)° between the benzoxadiazole group and the hexyl chain. The crystal structure features C—H⋯N hydrogen bonds leading to chains propagating along [2-10] and offset parallel stacking interactions of the triazole and benzoxadiazole rings. The centroid of the extended π-system formed by the benzoxadiazole and triazole rings (14 atoms total) was calculated; the centroid–centroid distance was 4.179 Å, interplanar separation was 3.243 Å, and the resulting offset was 2.636 Å.
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Affiliation(s)
- Jessie A Key
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
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42
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Key JA, Li C, Cairo CW. Detection of Cellular Sialic Acid Content Using Nitrobenzoxadiazole Carbonyl-Reactive Chromophores. Bioconjug Chem 2012; 23:363-71. [DOI: 10.1021/bc200276k] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jessie A. Key
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Caishun Li
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Christopher W. Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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43
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Application of NBD-Labeled Lipids in Membrane and Cell Biology. SPRINGER SERIES ON FLUORESCENCE 2012. [DOI: 10.1007/4243_2012_43] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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44
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Brown A, Ngai TY, Barnes MA, Key JA, Cairo CW. Substituted Benzoxadiazoles as Fluorogenic Probes: A Computational Study of Absorption and Fluorescence. J Phys Chem A 2011; 116:46-54. [DOI: 10.1021/jp2079296] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Alex Brown
- Department of Chemistry and ‡Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - Tsz Yan Ngai
- Department of Chemistry and ‡Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - Marie A. Barnes
- Department of Chemistry and ‡Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - Jessie A. Key
- Department of Chemistry and ‡Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
| | - Christopher W. Cairo
- Department of Chemistry and ‡Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
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45
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Sandbhor MS, Soya N, Albohy A, Zheng RB, Cartmell J, Bundle DR, Klassen JS, Cairo CW. Substrate recognition of the membrane-associated sialidase NEU3 requires a hydrophobic aglycone. Biochemistry 2011; 50:6753-62. [PMID: 21675735 DOI: 10.1021/bi200449j] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The human neuraminidases (NEU) consist of a family of four isoforms (NEU1-NEU4). Members of this enzyme family are proposed to have important roles in health and disease through regulation of the composition of cellular sialosides. The NEU3 isoform is a membrane-associated enzyme that cleaves glycolipid substrates. However, few reports have examined the substrate specificity of the enzyme for non-natural substrates. We report here a series of 11 synthetic trisaccharides that feature modifications of the aglycone or the Neu5Ac residue of an octyl β-sialyllactoside. The time course of substrate cleavage by NEU3 was monitored using an electrospray ionization mass spectrometry assay to obtain relative rates (k(rel)). We observed that NEU3 substrate activity was directly dependent upon the hydrophobicity of the aglycone but had no apparent requirement for features of the ceramide headgroup. We also observed that trisaccharides with incorporated azide groups in the Neu5Ac residue at either C9 or the N5-Ac position were substrates, and in the case of the N5-azidoacetyl derivative, the activity was superior to that of GM3. However, the incorporation of larger aryl groups was tolerated only at C9, but not at N5-Ac. We propose a two-site model for enzyme recognition, requiring interaction at both the Neu5Ac residue and the hydrophobic aglycone.
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Affiliation(s)
- Mahendra S Sandbhor
- Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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46
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Periyaraja S, Mandal AB, Shanmugam P. Unprecedented Binary Cu(I)/Cu(II) Catalyzed One-Pot, Three-Component Synthesis and Evaluation of Luminescent Property of 2-Amino-3-iminoethenylidene-2-indolones: A New Class of Merocyanine Dye Analogues. Org Lett 2011; 13:4980-3. [DOI: 10.1021/ol2022164] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Somasundharam Periyaraja
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Organic Chemistry Division, Chemical Laboratory, Adyar, Chennai-600020, India
| | - Asit Baran Mandal
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Organic Chemistry Division, Chemical Laboratory, Adyar, Chennai-600020, India
| | - Ponnusamy Shanmugam
- Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Organic Chemistry Division, Chemical Laboratory, Adyar, Chennai-600020, India
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47
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Son SH, Abe Y, Yuasa M, Yamagishi Y, Sakai N, Ayabe T, Yamada K. A Systematic Analysis of Aromatic Heterocyclic Rings in Solvatochromic Fluorophores. CHEM LETT 2011. [DOI: 10.1246/cl.2011.378] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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48
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D’Souza DM, Muschelknautz C, Rominger F, Müller TJJ. Unusual Solid-State Luminescent Push−Pull Indolones: A General One-Pot Three-component Approach. Org Lett 2010; 12:3364-7. [DOI: 10.1021/ol101165m] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel M. D’Souza
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany, and Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Christian Muschelknautz
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany, and Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Frank Rominger
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany, and Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany, and Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
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49
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Albohy A, Li MD, Zheng RB, Zou C, Cairo CW. Insight into substrate recognition and catalysis by the human neuraminidase 3 (NEU3) through molecular modeling and site-directed mutagenesis. Glycobiology 2010; 20:1127-38. [DOI: 10.1093/glycob/cwq077] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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50
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Sinkeldam RW, Greco NJ, Tor Y. Fluorescent analogs of biomolecular building blocks: design, properties, and applications. Chem Rev 2010; 110:2579-619. [PMID: 20205430 PMCID: PMC2868948 DOI: 10.1021/cr900301e] [Citation(s) in RCA: 665] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Renatus W. Sinkeldam
- Department of Chemistry and Biochemistry, University of California, San Diego 9500 Gilman Drive, La Jolla, California 92093-0358
| | | | - Yitzhak Tor
- Department of Chemistry and Biochemistry, University of California, San Diego 9500 Gilman Drive, La Jolla, California 92093-0358
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