1
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Saladin L, Breton V, Le Berruyer V, Nazac P, Lequeu T, Didier P, Danglot L, Collot M. Targeted Photoconvertible BODIPYs Based on Directed Photooxidation-Induced Conversion for Applications in Photoconversion and Live Super-Resolution Imaging. J Am Chem Soc 2024; 146:17456-17473. [PMID: 38861358 DOI: 10.1021/jacs.4c05231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Photomodulable fluorescent probes are drawing increasing attention due to their applications in advanced bioimaging. Whereas photoconvertible probes can be advantageously used in tracking, photoswitchable probes constitute key tools for single-molecule localization microscopy to perform super-resolution imaging. Herein, we shed light on a red and far-red BODIPY, namely, BDP-576 and BDP-650, which possess both properties of conversion and switching. Our study demonstrates that these pyrrolyl-BODIPYs convert into typical green- and red-emitting BODIPYs that are perfectly adapted to microscopy. We also showed that this pyrrolyl-BODIPYs undergo Directed Photooxidation Induced Conversion, a photoconversion mechanism that we recently introduced, where the pyrrole moiety plays a central role. These unique features were used to develop targeted photoconvertible probes toward different organelles or subcellular units (plasma membrane, mitochondria, nucleus, actin, Golgi apparatus, etc.) using chemical targeting moieties and a Halo tag. We notably showed that BDP-650 could be used to track intracellular vesicles over more than 20 min in two-color imagings with laser scanning confocal microscopy, demonstrating its robustness. The switching properties of these photoconverters were studied at the single-molecule level and were then successfully used in live single-molecule localization microscopy in epithelial cells and neurons. Both membrane- and mitochondria- targeted probes could be used to decipher membrane 3D architecture and mitochondrial dynamics at the nanoscale. This study builds a bridge between the photoconversion and photoswitching properties of probes undergoing directed photooxidation and shows the versatility and efficacy of this mechanism in advanced live imaging.
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Affiliation(s)
- Lazare Saladin
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
| | - Victor Breton
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in Healthy and Diseased Brain team; NeurImag core facility scientific director, 75014 Paris, France
| | - Valentine Le Berruyer
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
- Chemistry of Photoresponsive Systems, Laboratoire de Chémo-Biologie Synthétique et Thérapeutique (CBST) UMR 7199, CNRS, Université de Strasbourg, F-67400 Illkirch, France
| | - Paul Nazac
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in Healthy and Diseased Brain team; NeurImag core facility scientific director, 75014 Paris, France
| | - Thiebault Lequeu
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
| | - Pascal Didier
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
| | - Lydia Danglot
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in healthy and Diseased brain team; NeurImag core facility scientific director, 75014 Paris, France
| | - Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
- Chemistry of Photoresponsive Systems, Laboratoire de Chémo-Biologie Synthétique et Thérapeutique (CBST) UMR 7199, CNRS, Université de Strasbourg, F-67400 Illkirch, France
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2
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Kim D, Bossi ML, Belov VN, Hell SW. Supramolecular Complex of Cucurbit[7]uril with Diketopyrrolopyrole Dye: Fluorescence Boost, Biolabeling and Optical Microscopy. Angew Chem Int Ed Engl 2024:e202410217. [PMID: 38881490 DOI: 10.1002/anie.202410217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/18/2024]
Abstract
New photostable and bright supramolecular complexes based on cucurbit[7]uril (CB7) host and diketopyrrolopyrole (DPP) guest dyes having two positively charged 4-(trimethylammonio)phenyl groups were prepared and characterized. The dye core displays large Stokes shift (in H2O, abs./emission max. 480/550 nm; ϵ~19 000, τfl>4 ns), strong binding with the host (~560 nM Kd) and a linker affording fluorescence detection of bioconjugates with antibody and nanobody. Combination of protein-functionalized DPP dye with CB7 improves photostability and affords up to 12-fold emission gain. Two-color confocal and stimulated emission depletion (STED) microscopy with 595 nm or 655 nm STED depletion lasers shows that the presence of CB7 not only leads to improved brightness and image quality, but also results in DPP becoming cell-permeable.
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Affiliation(s)
- Dojin Kim
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences (MPI-NAT), Am Fassberg 11, 37077, Göttingen, Germany
| | - Mariano L Bossi
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research (MPI-MR), Jahnstrasse 29, 69120, Heidelberg, Germany
| | - Vladimir N Belov
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences (MPI-NAT), Am Fassberg 11, 37077, Göttingen, Germany
| | - Stefan W Hell
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences (MPI-NAT), Am Fassberg 11, 37077, Göttingen, Germany
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research (MPI-MR), Jahnstrasse 29, 69120, Heidelberg, Germany
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3
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Shen L, Li J, Wen C, Wang H, Liu N, Su X, Chen J, Li X. A firm-push-to-open and light-push-to-lock strategy for a general chemical platform to develop activatable dual-modality NIR-II probes. SCIENCE ADVANCES 2024; 10:eado2037. [PMID: 38875326 PMCID: PMC11177897 DOI: 10.1126/sciadv.ado2037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 05/10/2024] [Indexed: 06/16/2024]
Abstract
Activatable near-infrared (NIR) imaging in the NIR-II range is crucial for deep tissue bioanalyte tracking. However, designing such probes remains challenging due to the limited availability of general chemical strategies. Here, we introduced a foundational platform for activatable probes, using analyte-triggered smart modulation of the π-conjugation system of a NIR-II-emitting rhodamine hybrid. By tuning the nucleophilicity of the ortho-carboxy moiety, we achieved an electronic effect termed "firm-push-to-open and light-push-to-lock," which enables complete spirocyclization of the probe before sensing and allows for efficient zwitterion formation when the light-pushing aniline carbamate trigger is transformed into a firm-pushing aniline. This platform produces dual-modality NIR-II imaging probes with ~50-fold fluorogenic and activatable photoacoustic signals in live mice, surpassing reported probes with generally below 10-fold activatable signals. Demonstrating generality, we successfully designed probes for hydrogen peroxide (H2O2) and hydrogen sulfide (H2S). We envision a widespread adoption of the chemical platform for designing activatable NIR-II probes across diverse applications.
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Affiliation(s)
- Lili Shen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Street, Hangzhou 310058, China
| | - Jian Li
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chenglong Wen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Street, Hangzhou 310058, China
| | - Hao Wang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Street, Hangzhou 310058, China
| | - Nian Liu
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinhui Su
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianzhong Chen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Street, Hangzhou 310058, China
| | - Xin Li
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Street, Hangzhou 310058, China
- National Key Laboratory of Chinese Medicine Modernization, Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China
- State Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, Hangzhou 310058, China
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4
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Berndt D, Glaap D, Jennings T, Dose C, Werz DB, Reckert DNH. Water-Soluble Fluorescent Polymer Dyes with Tunable Emission Spectra for Flow Cytometry Applications. Angew Chem Int Ed Engl 2024; 63:e202402616. [PMID: 38488317 DOI: 10.1002/anie.202402616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Indexed: 04/04/2024]
Abstract
The application of spectrally unique, bright, and water-soluble fluorescent dyes is indispensable for the analysis of biological systems. Multiparameter flow cytometry is a powerful tool for characterization of mixed cell populations. To discriminate the different cell populations, they are typically stained by a set of fluorescent reagents, e.g., antibody-fluorophore conjugates. The number of parameters which can be studied simultaneously strongly depends on the availability of reagents which can be differentiated by their spectral properties. In this study a series of fluorescent polymer dyes was developed, that can be excited with a single violet laser (405 nm) but distinguished by their unique emission spectra. The polyfluorene-based polymers can be used on their own, or in combination with covalently bound small-molecule dyes to generate energy transfer constructs to red-shift the emission wavelength based on Förster resonance energy transfer (FRET). The polymer dyes were utilized in a biological flow cytometry assay by conjugating several of them to antibodies, demonstrating their effectiveness as reagents. This report represents the first systematic investigation of structure-property relationships for this type of fluorescent dyes.
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Affiliation(s)
- Daniel Berndt
- Miltenyi Biotec BV & Co. KG, Department Chemical Biology, Friedrich-Ebert-Str. 68, 51429, Bergisch Gladbach, Germany
- DFG Cluster of Excellence livMatS @FIT and Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstraße 21, 79104, Freiburg, Germany
| | - Dorina Glaap
- Miltenyi Biotec BV & Co. KG, Department Chemical Biology, Friedrich-Ebert-Str. 68, 51429, Bergisch Gladbach, Germany
| | - Travis Jennings
- Miltenyi Biotec BV & Co. KG, Department Chemical Biology, Friedrich-Ebert-Str. 68, 51429, Bergisch Gladbach, Germany
| | - Christian Dose
- Miltenyi Biotec BV & Co. KG, Department Chemical Biology, Friedrich-Ebert-Str. 68, 51429, Bergisch Gladbach, Germany
| | - Daniel B Werz
- DFG Cluster of Excellence livMatS @FIT and Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstraße 21, 79104, Freiburg, Germany
| | - Dirk N H Reckert
- Miltenyi Biotec BV & Co. KG, Department Chemical Biology, Friedrich-Ebert-Str. 68, 51429, Bergisch Gladbach, Germany
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5
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Jradi FM, English BP, Brown TA, Aaron J, Khuon S, Galbraith JA, Galbraith CG, Lavis LD. Coumarin as a general switching auxiliary to prepare photochromic and spontaneously blinking fluorophores. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.12.593749. [PMID: 38766036 PMCID: PMC11100827 DOI: 10.1101/2024.05.12.593749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Single-molecule localization microscopy (SMLM) uses activatable or switchable fluorophores to create non-diffraction limited maps of molecular location in biological samples. Despite the utility of this imaging technique, the portfolio of appropriate labels for SMLM remains limited. Here, we describe a general strategy for the construction of "glitter bomb" labels by simply combining rhodamine and coumarin dyes though an amide bond. Condensation of the ortho-carboxyl group on the pendant phenyl ring of rhodamine dyes with a 7-aminocoumarin yields photochromic or spontaneously blinking fluorophores depending on the parent rhodamine structure. We apply this strategy to prepare labels useful super-resolution experiments in fixed cells using different attachment techniques. This general glitter bomb strategy should lead to improved labels for SMLM, ultimately enabling the creation of detailed molecular maps in biological samples.
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Affiliation(s)
- Fadi M. Jradi
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
| | - Brian P. English
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
| | - Timothy A. Brown
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
| | - Jesse Aaron
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
| | - Satya Khuon
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
| | - James A. Galbraith
- Department of Biomedical Engineering and Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Catherine G. Galbraith
- Department of Biomedical Engineering and Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Luke D. Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, 20147, USA
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6
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Saridakis I, Riomet M, Belleza OJV, Coussanes G, Singer NK, Kastner N, Xiao Y, Smith E, Tona V, de la Torre A, Lopes EF, Sánchez-Murcia PA, González L, Sitte HH, Maulide N. PyrAtes: Modular Organic Salts with Large Stokes Shifts for Fluo-rescence Microscopy. Angew Chem Int Ed Engl 2024; 63:e202318127. [PMID: 38570814 DOI: 10.1002/anie.202318127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Indexed: 04/05/2024]
Abstract
The deployment of small-molecule fluorescent agents plays an ever-growing role in medicine and drug development. Herein, we complement the portfolio of powerful fluorophores, reporting the serendipitous discovery and development of a novel class with an imidazo[1,2-a]pyridinium triflate core, which we term PyrAtes. These fluorophores are synthesized in a single step from readily available materials (>60 examples) and display Stokes shifts as large as 240 nm, while also reaching NIR-I emissions at λmax as long as 720 nm. Computational studies allow the development of a platform for the prediction of λmax and λEm. Furthermore, we demonstrate the compatibility of these novel fluorophores with live cell imaging in HEK293 cells, suggesting PyrAtes as potent intracellular markers.
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Affiliation(s)
- Iakovos Saridakis
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Währinger Strasse 42, 1090, Vienna, Austria
| | - Margaux Riomet
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Oliver J V Belleza
- Centre of Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, Schwarzspanierstraße 17A, 1090, Vienna, Austria
| | - Guilhem Coussanes
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Nadja K Singer
- Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Währinger Strasse 42, 1090, Vienna, Austria
| | - Nina Kastner
- Centre of Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, Schwarzspanierstraße 17A, 1090, Vienna, Austria
| | - Yi Xiao
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Währinger Strasse 42, 1090, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the, Austrian Academy of Sciences, Lazarettgasse 14, 1090, Vienna, Austria
| | - Elliot Smith
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Veronica Tona
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Aurélien de la Torre
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Eric F Lopes
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Pedro A Sánchez-Murcia
- Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Leticia González
- Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Harald H Sitte
- Centre of Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, Schwarzspanierstraße 17A, 1090, Vienna, Austria
- Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, 19328, Amman, Jordan
- Center for Addiction Research and Science - AddRess, Medical University Vienna, Währinger Strasse 13 A, 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the, Austrian Academy of Sciences, Lazarettgasse 14, 1090, Vienna, Austria
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7
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Rimbault C, Breillat C, Compans B, Toulmé E, Vicente FN, Fernandez-Monreal M, Mascalchi P, Genuer C, Puente-Muñoz V, Gauthereau I, Hosy E, Claverol S, Giannone G, Chamma I, Mackereth CD, Poujol C, Choquet D, Sainlos M. Engineering paralog-specific PSD-95 recombinant binders as minimally interfering multimodal probes for advanced imaging techniques. eLife 2024; 13:e69620. [PMID: 38167295 PMCID: PMC10803022 DOI: 10.7554/elife.69620] [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: 05/04/2021] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
Despite the constant advances in fluorescence imaging techniques, monitoring endogenous proteins still constitutes a major challenge in particular when considering dynamics studies or super-resolution imaging. We have recently evolved specific protein-based binders for PSD-95, the main postsynaptic scaffold proteins at excitatory synapses. Since the synthetic recombinant binders recognize epitopes not directly involved in the target protein activity, we consider them here as tools to develop endogenous PSD-95 imaging probes. After confirming their lack of impact on PSD-95 function, we validated their use as intrabody fluorescent probes. We further engineered the probes and demonstrated their usefulness in different super-resolution imaging modalities (STED, PALM, and DNA-PAINT) in both live and fixed neurons. Finally, we exploited the binders to enrich at the synapse genetically encoded calcium reporters. Overall, we demonstrate that these evolved binders constitute a robust and efficient platform to selectively target and monitor endogenous PSD-95 using various fluorescence imaging techniques.
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Affiliation(s)
- Charlotte Rimbault
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Christelle Breillat
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Benjamin Compans
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Estelle Toulmé
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Filipe Nunes Vicente
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Monica Fernandez-Monreal
- University of Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4BordeauxFrance
| | - Patrice Mascalchi
- University of Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4BordeauxFrance
| | - Camille Genuer
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Virginia Puente-Muñoz
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Isabel Gauthereau
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Eric Hosy
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | | | - Gregory Giannone
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Ingrid Chamma
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | | | - Christel Poujol
- University of Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4BordeauxFrance
| | - Daniel Choquet
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
| | - Matthieu Sainlos
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297BordeauxFrance
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8
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Graziotto ME, Kidman CJ, Adair LD, James SA, Harris HH, New EJ. Towards multimodal cellular imaging: optical and X-ray fluorescence. Chem Soc Rev 2023; 52:8295-8318. [PMID: 37910139 DOI: 10.1039/d3cs00509g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Imaging techniques permit the study of the molecular interactions that underlie health and disease. Each imaging technique collects unique chemical information about the cellular environment. Multimodal imaging, using a single probe that can be detected by multiple imaging modalities, can maximise the information extracted from a single cellular sample by combining the results of different imaging techniques. Of particular interest in biological imaging is the combination of the specificity and sensitivity of optical fluorescence microscopy (OFM) with the quantitative and element-specific nature of X-ray fluorescence microscopy (XFM). Together, these techniques give a greater understanding of how native elements or therapeutics affect the cellular environment. This review focuses on recent studies where both techniques were used in conjunction to study cellular systems, demonstrating the breadth of biological models to which this combination of techniques can be applied and the potential for these techniques to unlock untapped knowledge of disease states.
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Affiliation(s)
- Marcus E Graziotto
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Clinton J Kidman
- Department of Chemistry, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Liam D Adair
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia.
- Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Simon A James
- Australian Nuclear Science and Technology Organisation, Clayton, Victoria, 3168, Australia
| | - Hugh H Harris
- Department of Chemistry, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Elizabeth J New
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia.
- Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW, 2006, Australia
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9
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Grimm J, Tkachuk AN, Patel R, Hennigan ST, Gutu A, Dong P, Gandin V, Osowski AM, Holland KL, Liu ZJ, Brown TA, Lavis LD. Optimized Red-Absorbing Dyes for Imaging and Sensing. J Am Chem Soc 2023; 145:23000-23013. [PMID: 37842926 PMCID: PMC10603817 DOI: 10.1021/jacs.3c05273] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Indexed: 10/17/2023]
Abstract
Rhodamine dyes are excellent scaffolds for developing a broad range of fluorescent probes. A key property of rhodamines is their equilibrium between a colorless lactone and fluorescent zwitterion. Tuning the lactone-zwitterion equilibrium constant (KL-Z) can optimize dye properties for specific biological applications. Here, we use known and novel organic chemistry to prepare a comprehensive collection of rhodamine dyes to elucidate the structure-activity relationships that govern KL-Z. We discovered that the auxochrome substituent strongly affects the lactone-zwitterion equilibrium, providing a roadmap for the rational design of improved rhodamine dyes. Electron-donating auxochromes, such as julolidine, work in tandem with fluorinated pendant phenyl rings to yield bright, red-shifted fluorophores for live-cell single-particle tracking (SPT) and multicolor imaging. The N-aryl auxochrome combined with fluorination yields red-shifted Förster resonance energy transfer (FRET) quencher dyes useful for creating a new semisynthetic indicator to sense cAMP using fluorescence lifetime imaging microscopy (FLIM). Together, this work expands the synthetic methods available for rhodamine synthesis, generates new reagents for advanced fluorescence imaging experiments, and describes structure-activity relationships that will guide the design of future probes.
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Affiliation(s)
- Jonathan
B. Grimm
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Ariana N. Tkachuk
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Ronak Patel
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - S. Thomas Hennigan
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Alina Gutu
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Peng Dong
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Valentina Gandin
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Anastasia M. Osowski
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Katie L. Holland
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Zhe J. Liu
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Timothy A. Brown
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Luke D. Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
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10
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Du Z, Wang W, Luo S, Zhang L, Yuan S, Hei Y, Bao Z, Chen C, Lin Y, Chu L. Self-Renewable Tag for Photostable Fluorescence Imaging of Proteins. J Am Chem Soc 2023; 145:18968-18976. [PMID: 37596976 DOI: 10.1021/jacs.3c06102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
Abstract
We report the development of a self-renewable tag (srTAG) for protein fluorescence imaging. srTAG leverages the "on-protein" fluorophore equilibrium between the fluorescent zwitterion and non-fluorescent spirocyclic form and the reversible fluorescence labeling to enable self-recovery of fluorescence after photobleaching. This small-sized srTAG allows 2-6 times longer imaging duration compared to other commonly used self-labeling tags and is compatible with fluorophores with different spectral properties. This study provides a new strategy for fine tuning of self-labeling tags.
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Affiliation(s)
- Zhichao Du
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Wenjing Wang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Siyuan Luo
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Lingjie Zhang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Shuowei Yuan
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Yongzhen Hei
- School of Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Zhangbin Bao
- IDG/McGovern Institute for Brain Research, Tsinghua-Peking Joint Centre for Life Sciences, Beijing 100084, China
| | - Chunlai Chen
- School of Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Yi Lin
- IDG/McGovern Institute for Brain Research, Tsinghua-Peking Joint Centre for Life Sciences, Beijing 100084, China
| | - Ling Chu
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
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11
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Kudyshev ZA, Sychev D, Martin Z, Yesilyurt O, Bogdanov SI, Xu X, Chen PG, Kildishev AV, Boltasseva A, Shalaev VM. Machine learning assisted quantum super-resolution microscopy. Nat Commun 2023; 14:4828. [PMID: 37563106 PMCID: PMC10415374 DOI: 10.1038/s41467-023-40506-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 07/26/2023] [Indexed: 08/12/2023] Open
Abstract
One of the main characteristics of optical imaging systems is spatial resolution, which is restricted by the diffraction limit to approximately half the wavelength of the incident light. Along with the recently developed classical super-resolution techniques, which aim at breaking the diffraction limit in classical systems, there is a class of quantum super-resolution techniques which leverage the non-classical nature of the optical signals radiated by quantum emitters, the so-called antibunching super-resolution microscopy. This approach can ensure a factor of [Formula: see text] improvement in the spatial resolution by measuring the n -th order autocorrelation function. The main bottleneck of the antibunching super-resolution microscopy is the time-consuming acquisition of multi-photon event histograms. We present a machine learning-assisted approach for the realization of rapid antibunching super-resolution imaging and demonstrate 12 times speed-up compared to conventional, fitting-based autocorrelation measurements. The developed framework paves the way to the practical realization of scalable quantum super-resolution imaging devices that can be compatible with various types of quantum emitters.
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Affiliation(s)
- Zhaxylyk A Kudyshev
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
| | - Demid Sychev
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
| | - Zachariah Martin
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
| | - Omer Yesilyurt
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
| | - Simeon I Bogdanov
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
- Nick Holonyak, Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Xiaohui Xu
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
| | - Pei-Gang Chen
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
| | - Alexander V Kildishev
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
| | - Alexandra Boltasseva
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA.
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA.
| | - Vladimir M Shalaev
- School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA
- The Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE), Oak Ridge, TN, USA
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12
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Bardi B, Vygranenko KV, Koszarna B, Vakuliuk O, Dobrzycki Ł, Gryko DT, Terenziani F, Painelli A. Novel Method for the Synthesis of Merocyanines: New Photophysical Possibilities for a Known Class of Fluorophores. Chemistry 2023; 29:e202300979. [PMID: 37203589 DOI: 10.1002/chem.202300979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 05/20/2023]
Abstract
A new, transformative method for the preparation of rhodols and other merocyanines from readily available tetrafluorohydroxybenzaldehyde and aminophenols has been developed. It is now possible to prepare merocyanines bearing three fluorine atoms and additional conjugated rings, and the whole one-pot process occurs under neutral, mild conditions. Three heretofore unknown merocyanine-based architectures were prepared using this strategy from aminonaphthols and 4-hydroxycoumarins. The ability to change the structure of original rhodol chromophore into π-expanded merocyanines translates to a comprehensive method for the modulation of photophysical properties, such as shifting the absorption and emission bands across almost the entire visible spectrum, reaching a huge Stokes shift i. e. 4800 cm-1 , brightness approximately 80.000 M-1 cm-1 , two-photon absorption cross-section above 150 GM and switching-on/off solvatofluorochromism. A detailed investigation allowed to rationalize the different spectroscopic behavior of rhodols and new merocyanines, addressing solvatochromism and two-photon absorption.
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Affiliation(s)
- Brunella Bardi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/a, 43124, Parma, Italy
| | | | - Beata Koszarna
- Institute of Organic Chemistry Polish Academy of Sciences, Warsaw, Poland
| | - Olena Vakuliuk
- Institute of Organic Chemistry Polish Academy of Sciences, Warsaw, Poland
| | - Łukasz Dobrzycki
- Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organic Chemistry Polish Academy of Sciences, Warsaw, Poland
| | - Francesca Terenziani
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/a, 43124, Parma, Italy
| | - Anna Painelli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/a, 43124, Parma, Italy
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13
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Zheng Y, Ye Z, Zhang X, Xiao Y. Recruiting Rate Determines the Blinking Propensity of Rhodamine Fluorophores for Super-Resolution Imaging. J Am Chem Soc 2023; 145:5125-5133. [PMID: 36815733 DOI: 10.1021/jacs.2c11395] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Live-cell single-molecule localization microscopy has advanced with the development of self-blinking rhodamines. A pKcycling of <6 is recognized as the criterion for self-blinking, yet a few rhodamines matching the standard fail for super-resolution reconstruction. To resolve this controversy, we constructed two classic rhodamines (pKcycling < 6) and four sulfonamide rhodamines with three exhibited exceptional larger pKcycling characteristics (6.91-7.34). A kinetic study uncovered slow equilibrium rates, and limited switch numbers resulted in the reconstruction failure of some rhodamines. From the kinetic disparity, a recruiting rate was first abstracted to reveal the natural switching frequency of spirocycling equilibrium. The new parameter independent from applying a laser satisfactorily explained the imaging failure, efficacious for determining the propensity of self-blinking from a kinetic perspective. Following the prediction from this parameter, the sulfonamide rhodamines enabled live-cell super-resolution imaging of various organelles through Halo-tag technology. It is determined that the recruiting rate would be a practical indicator of self-blinking and imaging performance.
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Affiliation(s)
- Ying Zheng
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhiwei Ye
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xue Zhang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yi Xiao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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14
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Saladin L, Breton V, Dal Pra O, Klymchenko AS, Danglot L, Didier P, Collot M. Dual-Color Photoconvertible Fluorescent Probes Based on Directed Photooxidation Induced Conversion for Bioimaging. Angew Chem Int Ed Engl 2023; 62:e202215085. [PMID: 36420823 PMCID: PMC10107923 DOI: 10.1002/anie.202215085] [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: 10/14/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 11/25/2022]
Abstract
We herein present a new concept to produce dual-color photoconvertible probes based on a mechanism called Directed Photooxidation Induced Conversion (DPIC). As a support of this mechanism, styryl-coumarins (SCs) bearing Aromatic Singlet Oxygen Reactive Moieties (ASORMs) like furan and pyrrole have been synthesized. SCs are bright fluorophores, which undergo a hypsochromic conversion upon visible light irradiation due to directed photooxidation of the ASORM that leads to the disruption of conjugation. SC-P, a yellow emitting probe bearing a pyrrole moiety, converts to a stable blue emitting coumarin with a 68 nm shift allowing the photoconversion and tracking of lipid droplet in live cells. This new approach might pave the way to a new generation of photoconvertible dyes for advanced bioimaging applications.
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Affiliation(s)
- Lazare Saladin
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch-Graffenstaden, France
| | - Victor Breton
- Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in Healthy and Diseased Brain, Université Paris Cité, 102 rue de la santé, 75014, Paris, France
| | - Ophélie Dal Pra
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch-Graffenstaden, France
| | - Andrey S Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch-Graffenstaden, France
| | - Lydia Danglot
- Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Membrane Traffic in Healthy and Diseased Brain, Université Paris Cité, 102 rue de la santé, 75014, Paris, France.,Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, Sientific director of NeurImag facility, Université Paris Cité, 102 rue de la santé, 75014, Paris, France
| | - Pascal Didier
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch-Graffenstaden, France
| | - Mayeul Collot
- Laboratoire de Bioimagerie et Pathologies, UMR 7021, CNRS/, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch-Graffenstaden, France
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15
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Martínek M, Ludvíková L, Šranková M, Navrátil R, Muchová L, Huzlík J, Vítek L, Klán P, Šebej P. Common xanthene fluorescent dyes are visible-light activatable CO-releasing molecules. Org Biomol Chem 2022; 21:93-97. [PMID: 36326159 DOI: 10.1039/d2ob01823c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Fluorescein, eosin Y, and rose bengal are dyes used in clinical medicine and considered (photo-)chemically stable. Upon extensive irradiation with visible light in aqueous solutions, we found that these compounds release carbon monoxide (CO) - a bioactive gasotransmitter - in 40-100% yields along with the production of low-mass secondary photoproducts, such as phthalic and formic acids, in a multistep degradation process. Such photochemistry should be considered in applications of these dyes, and they could also be utilized as visible-light activatable CO-releasing molecules (photoCORMs) with biological implications.
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Affiliation(s)
- Marek Martínek
- RECETOX, Faculty of Science, Masaryk University, Kamenice 735/5, D29, 625 00 Brno-Bohunice, Czech Republic. .,Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 735/5, A08, 625 00 Brno-Bohunice, Czech Republic
| | - Lucie Ludvíková
- RECETOX, Faculty of Science, Masaryk University, Kamenice 735/5, D29, 625 00 Brno-Bohunice, Czech Republic.
| | - Mária Šranková
- Institute of Medical Biochemistry and Laboratory Diagnostics, General University Hospital in Prague and 1st Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Praha 2, Czech Republic
| | - Rafael Navrátil
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, Czech Republic
| | - Lucie Muchová
- Institute of Medical Biochemistry and Laboratory Diagnostics, General University Hospital in Prague and 1st Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Praha 2, Czech Republic
| | - Jiří Huzlík
- Transport Research Centre (CDV), Líšeňská 33a, 636 00 Brno-Líšeň, Czech Republic
| | - Libor Vítek
- Institute of Medical Biochemistry and Laboratory Diagnostics, General University Hospital in Prague and 1st Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Praha 2, Czech Republic.,4th Department of Internal Medicine, General University Hospital in Prague and 1st Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Praha 2, Czech Republic
| | - Petr Klán
- RECETOX, Faculty of Science, Masaryk University, Kamenice 735/5, D29, 625 00 Brno-Bohunice, Czech Republic. .,Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 735/5, A08, 625 00 Brno-Bohunice, Czech Republic
| | - Peter Šebej
- RECETOX, Faculty of Science, Masaryk University, Kamenice 735/5, D29, 625 00 Brno-Bohunice, Czech Republic.
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16
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Song G, Nong DZ, Li JS, Li G, Zhang W, Cao R, Wang C, Xiao J, Xue D. General Method for the Amination of Aryl Halides with Primary and Secondary Alkyl Amines via Nickel Photocatalysis. J Org Chem 2022; 87:10285-10297. [PMID: 35877165 DOI: 10.1021/acs.joc.2c01284] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Buchwald-Hartwig C-N coupling reaction has been ranked as one of the 20 most frequently used reactions in medicinal chemistry. Owing to its much lower cost and higher reactivity toward less reactive aryl chlorides than palladium, the C-N coupling reaction catalyzed by Ni-based catalysts has received a great deal of attention. However, there appear to be no universal, practical Ni catalytic systems so far that could enable the coupling of electron-rich and electron-poor aryl halides with both primary and secondary alkyl amines. In this study, it is reported that a Ni(II)-bipyridine complex catalyzes efficient C-N coupling of aryl chlorides and bromides with various primary and secondary alkyl amines under direct excitation with light. Intramolecular C-N coupling is also demonstrated. The feasibility and applicability of the protocol in organic synthesis is attested by more than 200 examples.
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Affiliation(s)
- Geyang Song
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Ding-Zhan Nong
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jing-Sheng Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Gang Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jianliang Xiao
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
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17
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Meador WE, Kapusta K, Owolabi I, Autry SA, Saloni J, Kolodziejczyk W, Hammer NI, Flynt AS, Hill GA, Delcamp JH. Ultra Bright Near‐Infrared Sulfonate‐Indolizine Cyanine‐ and Squaraine‐Albumin Chaperones: Record Quantum Yields and Applications. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- William E. Meador
- University of Mississippi Department of Chemistry and Biochemistry 38677 University UNITED STATES
| | - Karina Kapusta
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 Jackson UNITED STATES
| | - Iyanuoluwani Owolabi
- University of Southern Mississippi Department of Biological Sciences 39406 UNITED STATES
| | - Shane A. Autry
- University of Mississippi Department of Chemistry and Biochemistry 38677 UNITED STATES
| | - Julia Saloni
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 UNITED STATES
| | - Wojciech Kolodziejczyk
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 UNITED STATES
| | - Nathan I. Hammer
- University of Mississippi Department of Chemistry and Biochemistry 38677 UNITED STATES
| | - Alex S. Flynt
- University of Southern Mississippi Department of Biological Sciences 39406 UNITED STATES
| | - Glake A. Hill
- Jackson State University Department of Chemistry, Physics and Atmospheric Sciences 39217 UNITED STATES
| | - Jared Heath Delcamp
- University of Mississippi Chemistry 405 Coulter Hall 38677 University UNITED STATES
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18
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Banala S, Tkachuk AN, Patel R, Kumar P, Brown TA, Lavis LD. 2,7-Diaminobenzopyrylium Dyes Are Live-Cell Mitochondrial Stains. ACS BIO & MED CHEM AU 2022; 2:307-312. [PMID: 35726328 PMCID: PMC9204777 DOI: 10.1021/acsbiomedchemau.1c00068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 12/02/2022]
Abstract
![]()
Small-molecule fluorescent
stains enable the imaging of cellular
structures without the need for genetic manipulation. Here, we introduce
2,7-diaminobenzopyrylium (DAB) dyes as live-cell mitochondrial stains
excited with violet light. This amalgam of the coumarin and rhodamine
fluorophore structures yields dyes with high photostability and tunable
spectral properties.
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Affiliation(s)
- Sambashiva Banala
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Ariana N. Tkachuk
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Ronak Patel
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Pratik Kumar
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Timothy A. Brown
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Luke D. Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
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19
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Fiala T, Mosharov EV, Wang J, Mendieta AM, Choi SJ, Fialova E, Hwu C, Sulzer D, Sames D. Chemical Targeting of Rhodol Voltage-Sensitive Dyes to Dopaminergic Neurons. ACS Chem Neurosci 2022; 13:1251-1262. [PMID: 35400149 DOI: 10.1021/acschemneuro.1c00862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Optical imaging of changes in the membrane potential of living cells can be achieved by means of fluorescent voltage-sensitive dyes (VSDs). A particularly challenging task is to efficiently deliver these highly lipophilic probes to specific neuronal subpopulations in brain tissue. We have tackled this task by designing a solubilizing, hydrophilic polymer platform that carries a high-affinity ligand for a membrane protein marker of interest and a fluorescent VSD. Here, we disclose an improved design of polymer-supported probes for chemical, nongenetic targeting of voltage sensors to axons natively expressing the dopamine transporter in ex vivo mouse brain tissue. We first show that for negatively charged rhodol VSDs functioning on the photoinduced electron transfer principle, poly(ethylene glycol) as a carrier enables targeting with higher selectivity than the polysaccharide dextran in HEK cell culture. In the same experimental setting, we also demonstrate that incorporation of an azetidine ring into the rhodol chromophore substantially increases the brightness and voltage sensitivity of the respective VSD. We show that the superior properties of the optimized sensor are transferable to recording of electrically evoked activity from dopaminergic axons in mouse striatal slices after averaging of multiple trials. Finally, we suggest the next milestones for the field to achieve single-scan recordings with nongenetically targeted VSDs in native brain tissue.
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Affiliation(s)
- Tomas Fiala
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Eugene V. Mosharov
- Department of Neurology, Columbia University Irving Medical Center, New York, New York 10032, United States
| | - Jihang Wang
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Adriana M. Mendieta
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Se Joon Choi
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York 10032, United States
| | - Eva Fialova
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Christopher Hwu
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - David Sulzer
- Department of Neurology, Columbia University Irving Medical Center, New York, New York 10032, United States
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York 10032, United States
- Department of Pharmacology, Columbia University Irving Medical Center, New York, New York 10032, United States
- Department of Molecular Therapeutics, New York State Psychiatric Institute, New York, New York 10032, United States
| | - Dalibor Sames
- Department of Chemistry, Columbia University, New York, New York 10027, United States
- NeuroTechnology Center at Columbia University, New York, New York 10027, United States
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20
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Mertes N, Busch M, Huppertz MC, Hacker CN, Wilhelm J, Gürth CM, Kühn S, Hiblot J, Koch B, Johnsson K. Fluorescent and Bioluminescent Calcium Indicators with Tuneable Colors and Affinities. J Am Chem Soc 2022; 144:6928-6935. [PMID: 35380808 PMCID: PMC9026248 DOI: 10.1021/jacs.2c01465] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
We introduce a family
of bright, rhodamine-based calcium indicators
with tuneable affinities and colors. The indicators can be specifically
localized to different cellular compartments and are compatible with
both fluorescence and bioluminescence readouts through conjugation
to HaloTag fusion proteins. Importantly, their increase in fluorescence
upon localization enables no-wash live-cell imaging, which greatly
facilitates their use in biological assays. Applications as fluorescent
indicators in rat hippocampal neurons include the detection of single
action potentials and of calcium fluxes in the endoplasmic reticulum.
Applications as bioluminescent indicators include the recording of
the pharmacological modulation of nuclear calcium in high-throughput
compatible assays. The versatility and remarkable ease of use of these
indicators make them powerful tools for bioimaging and bioassays.
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Affiliation(s)
- Nicole Mertes
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Marvin Busch
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Magnus-Carsten Huppertz
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Christina Nicole Hacker
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Jonas Wilhelm
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Clara-Marie Gürth
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Stefanie Kühn
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Julien Hiblot
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Birgit Koch
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Kai Johnsson
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.,Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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21
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Cho NH, Cheveralls KC, Brunner AD, Kim K, Michaelis AC, Raghavan P, Kobayashi H, Savy L, Li JY, Canaj H, Kim JYS, Stewart EM, Gnann C, McCarthy F, Cabrera JP, Brunetti RM, Chhun BB, Dingle G, Hein MY, Huang B, Mehta SB, Weissman JS, Gómez-Sjöberg R, Itzhak DN, Royer LA, Mann M, Leonetti MD. OpenCell: Endogenous tagging for the cartography of human cellular organization. Science 2022; 375:eabi6983. [PMID: 35271311 DOI: 10.1126/science.abi6983] [Citation(s) in RCA: 146] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Elucidating the wiring diagram of the human cell is a central goal of the postgenomic era. We combined genome engineering, confocal live-cell imaging, mass spectrometry, and data science to systematically map the localization and interactions of human proteins. Our approach provides a data-driven description of the molecular and spatial networks that organize the proteome. Unsupervised clustering of these networks delineates functional communities that facilitate biological discovery. We found that remarkably precise functional information can be derived from protein localization patterns, which often contain enough information to identify molecular interactions, and that RNA binding proteins form a specific subgroup defined by unique interaction and localization properties. Paired with a fully interactive website (opencell.czbiohub.org), our work constitutes a resource for the quantitative cartography of human cellular organization.
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Affiliation(s)
| | | | - Andreas-David Brunner
- Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Kibeom Kim
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - André C Michaelis
- Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
| | | | | | - Laura Savy
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Jason Y Li
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Hera Canaj
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | | | | | - Christian Gnann
- Chan Zuckerberg Biohub, San Francisco, CA, USA.,Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology, Stockholm, Sweden
| | | | | | - Rachel M Brunetti
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
| | | | - Greg Dingle
- Chan Zuckerberg Initiative, Redwood City, CA, USA
| | | | - Bo Huang
- Chan Zuckerberg Biohub, San Francisco, CA, USA.,Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA.,Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
| | | | - Jonathan S Weissman
- Whitehead Institute, Koch Institute, Howard Hughes Medical Institute, and Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA, USA
| | | | | | | | - Matthias Mann
- Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany.,NNF Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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22
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Caveat fluorophore: an insiders' guide to small-molecule fluorescent labels. Nat Methods 2022; 19:149-158. [PMID: 34949811 DOI: 10.1038/s41592-021-01338-6] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 11/01/2021] [Indexed: 01/20/2023]
Abstract
The last three decades have brought a revolution in fluorescence microscopy. The development of new microscopes, fluorescent labels and analysis techniques has pushed the frontiers of biological imaging forward, moving from fixed to live cells, from diffraction-limited to super-resolution imaging and from simple cell culture systems to experiments in vivo. The large and ever-evolving collection of tools can be daunting for biologists, who must invest substantial time and effort in adopting new technologies to answer their specific questions. This is particularly relevant when working with small-molecule fluorescent labels, where users must navigate the jargon, idiosyncrasies and caveats of chemistry. Here, we present an overview of chemical dyes used in biology and provide frank advice from a chemist's perspective.
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23
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Shannon KB. Staining of the Actin Cytoskeleton During Cell Division in Budding Yeast and Mammalian Cells. Methods Mol Biol 2022; 2415:87-94. [PMID: 34972947 DOI: 10.1007/978-1-0716-1904-9_6] [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] [Indexed: 06/14/2023]
Abstract
Observation of actin at the cortex in dividing cells can be accomplished using the fungal toxin phalloidin conjugated to fluorophores. Protocols for staining both budding yeast and cultured mammalian cells with fluorescent phalloidin are described. This technique can be combined with immunofluorescence to image actin filaments and other proteins involved in cell division simultaneously.
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Affiliation(s)
- Katie B Shannon
- Department of Biological Sciences, Missouri University of Science and Technology, Rolla, MO, USA.
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24
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Muñoz Resta I, Bedrina B, Martínez-Planes E, Minguela A, Galindo F. Detection of subcellular nitric oxide in mitochondria using a pyrylium probe: assays in cell cultures and peripheral blood. J Mater Chem B 2021; 9:9885-9892. [PMID: 34821904 DOI: 10.1039/d1tb02326h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescent probes for the detection of intracellular nitric oxide (NO) are abundant, but those targeted to the mitochondria are scarce. Among those molecules targeting mitochondrial NO (mNO), the majority use a triphenylphosphonium (TPP) cation as a vector to reach such organelles. Here we describe a simple molecule (mtNOpy) based on the pyrylium structure, made in a few synthetic steps, capable of detecting selectively NO (aerated medium) over other reactive species. The calculated detection limit for mtNOpy is 88 nM. The main novelty of this probe is that it has a simple molecular architecture and can act both as a fluorogenic and as a mitochondriotropic agent, without using TPP. mtNOpy has been tested in two different scenarios: (a) in a controlled environment of cell line cultures (human colon carcinoma HT-29 cells and mouse macrophage RAW 264.7 cells), using confocal laser scanning microscopy, and (b) on a much more complex sample of peripheral blood, using flow cytometry. In the first context, mtNOpy has been found to be responsive (turn-on fluorescence) to exogenous and endogenous NO stimuli (via SNAP donor and LPS stimulation, respectively). In the second area, mtNOpy has been able to discriminate between NO-generating phagocytes (neutrophils and monocytes) from other leukocytes (NK, B and T cells).
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Affiliation(s)
- Ignacio Muñoz Resta
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071, Castellón, Spain.
| | - Begoña Bedrina
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071, Castellón, Spain.
| | - Elena Martínez-Planes
- Servicio de Inmunología, Hospital Universitario Virgen de la Arrixaca, El Palmar, 30120, Murcia, Spain
| | - Alfredo Minguela
- Servicio de Inmunología, Hospital Universitario Virgen de la Arrixaca, El Palmar, 30120, Murcia, Spain
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071, Castellón, Spain.
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25
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Dröge F, Noakes FF, Archer SA, Sreedharan S, Raza A, Robertson CC, MacNeil S, Haycock JW, Carson H, Meijer AJHM, Smythe CGW, Bernardino de la Serna J, Dietzek-Ivanšić B, Thomas JA. A Dinuclear Osmium(II) Complex Near-Infrared Nanoscopy Probe for Nuclear DNA. J Am Chem Soc 2021; 143:20442-20453. [PMID: 34808044 DOI: 10.1021/jacs.1c10325] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
With the aim of developing photostable near-infrared cell imaging probes, a convenient route to the synthesis of heteroleptic OsII complexes containing the Os(TAP)2 fragment is reported. This method was used to synthesize the dinuclear OsII complex, [{Os(TAP)2}2tpphz]4+ (where tpphz = tetrapyrido[3,2-a:2',3'-c:3″,2''-h:2‴,3'''-j]phenazine and TAP = 1,4,5,8- tetraazaphenanthrene). Using a combination of resonance Raman and time-resolved absorption spectroscopy, as well as computational studies, the excited state dynamics of the new complex were dissected. These studies revealed that, although the complex has several close lying excited states, its near-infrared, NIR, emission (λmax = 780 nm) is due to a low-lying Os → TAP based 3MCLT state. Cell-based studies revealed that unlike its RuII analogue, the new complex is neither cytotoxic nor photocytotoxic. However, as it is highly photostable as well as live-cell permeant and displays NIR luminescence within the biological optical window, its properties make it an ideal probe for optical microscopy, demonstrated by its use as a super-resolution NIR STED probe for nuclear DNA.
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Affiliation(s)
- Fabian Dröge
- Institute of Physical Chemistry, Helmholtzweg 4, 07743 Jena, Germany; Institute of Photonic Technology Jena e.V., Albert-Einstein-Straße 9, 07749 Jena, Germany
| | | | | | | | | | | | | | | | | | | | | | - Jorge Bernardino de la Serna
- Central Laser Facility, Rutherford Appleton Laboratory, Research Complex at Harwell, Science and Technology Facilities Council, Harwell-Oxford, Didcot OX11 0QX, United Kingdom; National Heart and Lung Institute, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Benjamin Dietzek-Ivanšić
- Institute of Physical Chemistry, Helmholtzweg 4, 07743 Jena, Germany; Institute of Photonic Technology Jena e.V., Albert-Einstein-Straße 9, 07749 Jena, Germany
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26
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Show your true color: Mammalian cell surface staining for tracking cellular identity in multiplexing and beyond. Curr Opin Chem Biol 2021; 66:102102. [PMID: 34861482 DOI: 10.1016/j.cbpa.2021.102102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 12/23/2022]
Abstract
Fluorescence microscopy revolutionized cell biology and changed requirements for dyes towards higher brightness, novel capacities, and specific targets. With the need for multiplexing assays in high-throughput methodologies, surface staining gained particular interest because it allows rapid application of exogenous stains to track cellular identity in mixed populations. Indeed, the last decade has enriched the toolbox of general lipid stains, fluorescent lipid analogues, sugar-binding lectins, and protein-specific antibodies enabling the first rationally designed plasma membrane-specific dyes. Still, multiple challenges exist, and the unique properties of each dye must be considered when selecting a staining approach for a specific application. Recent advances are also promising that future dyes will provide ultimate brightness and photostability in diverse colors and reduced sizes for high-resolution imaging.
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27
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Resta IM, Lucantoni F, Apostolova N, Galindo F. Fluorescent styrylpyrylium probes for the imaging of mitochondria in live cells. Org Biomol Chem 2021; 19:9043-9057. [PMID: 34617091 DOI: 10.1039/d1ob01543e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Eight styrylpyrylium tetrafluoroborate salts have been synthesized and fully optically characterized by UV-vis absorption and fluorescence steady-state/time-resolved spectroscopies. The new dyes exhibit strong emission bands with yellow-orange colours, depending on the substituents present in the structure. Notably, the Stokes shift recorded for some of them exceeds 100 nm, a very valuable feature for biological imaging. Four of them have been assayed as biological imaging agents by confocal laser scanning microscopy (CLSM) in the human hepatoma cell line Hep3B. It has been found that all the compounds efficiently stain intracellular structures which have been identified as mitochondria through colocalization assays with MitoView (a well-known mitochondrial marker) and using carbonyl cyanide m-chlorophenyl hydrazone (CCCP) as a mitochondrial membrane potential uncoupler. Additionally, the potential ability of the studied dyes as cytotoxic drugs has been explored. The inhibitory concentration (IC50) against Hep3B was found to be in the range of 4.2 μM-11.5 μM, similar to other described anticancer drugs for the same hepatoma cell line. The combined features of a good imaging agent and potential anticancer drug make the family of the studied pyrylium salts good candidates for further theranostic studies. Remarkably, despite the extensive use of pyrylium dyes in several scientific areas (from photocatalysis to optics), there is no precedent description of a styrylpyrylium salt with potential theranostic applications.
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Affiliation(s)
- Ignacio Muñoz Resta
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071, Castellón, Spain.
| | - Federico Lucantoni
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, Av. Blasco Ibañez n. 15-17, 46010, Valencia, Spain.
- FISABIO (Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana), Spain
| | - Nadezda Apostolova
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, Av. Blasco Ibañez n. 15-17, 46010, Valencia, Spain.
- FISABIO (Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana), Spain
- CIBERehd (Centro de Investigación Biomédica en Red: Enfermedades hepáticas y digestivas), Spain
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. V. Sos Baynat s/n, 12071, Castellón, Spain.
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28
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Lardon N, Wang L, Tschanz A, Hoess P, Tran M, D'Este E, Ries J, Johnsson K. Systematic Tuning of Rhodamine Spirocyclization for Super-resolution Microscopy. J Am Chem Soc 2021; 143:14592-14600. [PMID: 34460256 DOI: 10.1021/jacs.1c05004] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rhodamines are the most important class of fluorophores for applications in live-cell fluorescence microscopy. This is mainly because rhodamines exist in a dynamic equilibrium between a fluorescent zwitterion and a nonfluorescent but cell-permeable spirocyclic form. Different imaging applications require different positions of this dynamic equilibrium, and an adjustment of the equilibrium poses a challenge for the design of suitable probes. We describe here how the conversion of the ortho-carboxy moiety of a given rhodamine into substituted acyl benzenesulfonamides and alkylamides permits the systematic tuning of the equilibrium of spirocyclization with unprecedented accuracy and over a large range. This allows one to transform the same rhodamine into either a highly fluorogenic and cell-permeable probe for live-cell-stimulated emission depletion (STED) microscopy or a spontaneously blinking dye for single-molecule localization microscopy (SMLM). We used this approach to generate differently colored probes optimized for different labeling systems and imaging applications.
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Affiliation(s)
- Nicolas Lardon
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.,Faculty of Chemistry and Earth Sciences, Heidelberg University, 69120 Heidelberg, Germany
| | - Lu Wang
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.,Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Zhangheng Road 826, 201203 Shanghai, China
| | - Aline Tschanz
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany.,Faculty of Biosciences, Collaboration for Joint PhD Degree between EMBL and Heidelberg University, 69120 Heidelberg, Germany
| | - Philipp Hoess
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany.,Faculty of Biosciences, Collaboration for Joint PhD Degree between EMBL and Heidelberg University, 69120 Heidelberg, Germany
| | - Mai Tran
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Elisa D'Este
- Optical Microscopy Facility, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Jonas Ries
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Kai Johnsson
- Department of Chemical Biology, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.,Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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29
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Chatterjee S, Meador WE, Smith C, Chandrasiri I, Zia MF, Nguyen J, Dorris A, Flynt A, Watkins DL, Hammer NI, Delcamp JH. SWIR emissive RosIndolizine dyes with nanoencapsulation in water soluble dendrimers. RSC Adv 2021; 11:27832-27836. [PMID: 35480767 PMCID: PMC9037842 DOI: 10.1039/d1ra05479a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/09/2021] [Indexed: 12/22/2022] Open
Abstract
Shortwave infrared (SWIR) emission has great potential for deep-tissue in vivo biological imaging with high resolution. In this article, the synthesis and characterization of two new xanthene-based RosIndolizine dyes coded PhRosIndz and tolRosIndz is presented. The dyes are characterized via femtosecond transient absorption spectroscopy as well as steady-state absorption and emission spectroscopies. The emission of these dyes is shown in the SWIR region with peak emission at 1097 nm. TolRosIndz was encapsulated with an amphiphilic linear dendritic block co-polymer (LDBC) coded 10-PhPCL-G3 with high uptake yield. Further, cellular toxicity was examined in vitro using HEK (human embryonic kidney) cells where a >90% cell viability was observed at practical concentrations of the encapsulated dye which indicates low toxicity and reasonable biocompatibility. A xanthene–indolizine dye is shown to emit in the shortwave infrared spectral region (∼1100 nm maximum) in water when nanoencapsulated.![]()
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Affiliation(s)
- Satadru Chatterjee
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - William E Meador
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - Cameron Smith
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - Indika Chandrasiri
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - Mohammad Farid Zia
- Department of Biological Sciences, University of Southern Mississippi Hattiesburg MS 39406 USA
| | - Jay Nguyen
- Department of Biological Sciences, University of Southern Mississippi Hattiesburg MS 39406 USA
| | - Austin Dorris
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - Alex Flynt
- Department of Biological Sciences, University of Southern Mississippi Hattiesburg MS 39406 USA
| | - Davita L Watkins
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - Nathan I Hammer
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
| | - Jared H Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, Coulter Hall, University MS 38677 USA
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30
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Sirbu D, Chopin N, Martinić I, Ndiaye M, Eliseeva SV, Hiebel MA, Petoud S, Suzenet F. Pyridazino-1,3a,6a-Triazapentalenes as Versatile Fluorescent Probes: Impact of Their Post-Functionalization and Application for Cellular Imaging. Int J Mol Sci 2021; 22:6645. [PMID: 34205833 PMCID: PMC8234658 DOI: 10.3390/ijms22126645] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 12/24/2022] Open
Abstract
Pyridazino-1,3a,6a-triazapentalenes (PyTAP) are compact fused 6/5/5 tricyclic scaffolds which exhibit promising fluorescent properties. Chemically stable, they can be post-functionalized using standard Pd-catalyzed cross-coupling chemistry. Several original PyTAP bearing additional unsaturated substituents in positions 2 and 8 were synthetized and their spectroscopic properties analyzed. They have been successfully tested as fluorescent probes for cellular imaging.
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Affiliation(s)
- Doina Sirbu
- Institut de Chimie Organique et Analytique—ICOA UMR7311, Rue de Chartres, CEDEX 2, 45100 Orléans, France; (D.S.); (N.C.); (M.N.); (M.-A.H.)
| | - Nicolas Chopin
- Institut de Chimie Organique et Analytique—ICOA UMR7311, Rue de Chartres, CEDEX 2, 45100 Orléans, France; (D.S.); (N.C.); (M.N.); (M.-A.H.)
| | - Ivana Martinić
- Centre de Biophysique Moléculaire CNRS UPR 4301, Rue Charles Sadron, CEDEX 2, 45071 Orléans, France; (I.M.); (S.V.E.)
| | - Moussa Ndiaye
- Institut de Chimie Organique et Analytique—ICOA UMR7311, Rue de Chartres, CEDEX 2, 45100 Orléans, France; (D.S.); (N.C.); (M.N.); (M.-A.H.)
| | - Svetlana V. Eliseeva
- Centre de Biophysique Moléculaire CNRS UPR 4301, Rue Charles Sadron, CEDEX 2, 45071 Orléans, France; (I.M.); (S.V.E.)
| | - Marie-Aude Hiebel
- Institut de Chimie Organique et Analytique—ICOA UMR7311, Rue de Chartres, CEDEX 2, 45100 Orléans, France; (D.S.); (N.C.); (M.N.); (M.-A.H.)
| | - Stéphane Petoud
- Centre de Biophysique Moléculaire CNRS UPR 4301, Rue Charles Sadron, CEDEX 2, 45071 Orléans, France; (I.M.); (S.V.E.)
| | - Franck Suzenet
- Institut de Chimie Organique et Analytique—ICOA UMR7311, Rue de Chartres, CEDEX 2, 45100 Orléans, France; (D.S.); (N.C.); (M.N.); (M.-A.H.)
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31
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Abstract
The measurement of ion concentrations and fluxes inside living cells is key to understanding cellular physiology. Fluorescent indicators that can infiltrate and provide intel on the cellular environment are critical tools for biological research. Developing these molecular informants began with the seminal work of Racker and colleagues ( Biochemistry (1979) 18, 2210), who demonstrated the passive loading of fluorescein in living cells to measure changes in intracellular pH. This work continues, employing a mix of old and new tradecraft to create innovative agents for monitoring ions inside living systems.
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Affiliation(s)
- Luke D Lavis
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
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32
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Grimm J, Xie L, Casler JC, Patel R, Tkachuk AN, Falco N, Choi H, Lippincott-Schwartz J, Brown TA, Glick BS, Liu Z, Lavis LD. A General Method to Improve Fluorophores Using Deuterated Auxochromes. JACS AU 2021; 1:690-696. [PMID: 34056637 PMCID: PMC8154212 DOI: 10.1021/jacsau.1c00006] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Indexed: 05/20/2023]
Abstract
Fluorescence microscopy relies on dyes that absorb and then emit photons. In addition to fluorescence, fluorophores can undergo photochemical processes that decrease quantum yield or result in spectral shifts and irreversible photobleaching. Chemical strategies that suppress these undesirable pathways-thereby increasing the brightness and photostability of fluorophores-are crucial for advancing the frontier of bioimaging. Here, we describe a general method to improve small-molecule fluorophores by incorporating deuterium into the alkylamino auxochromes of rhodamines and other dyes. This strategy increases fluorescence quantum yield, inhibits photochemically induced spectral shifts, and slows irreparable photobleaching, yielding next-generation labels with improved performance in cellular imaging experiments.
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Affiliation(s)
- Jonathan
B. Grimm
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Liangqi Xie
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Jason C. Casler
- Department
of Molecular Genetics and Cell Biology, University of Chicago, 920 East 58th Street, Chicago, Illinois 60637, United
States
| | - Ronak Patel
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Ariana N. Tkachuk
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Natalie Falco
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Heejun Choi
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Jennifer Lippincott-Schwartz
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Timothy A. Brown
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Benjamin S. Glick
- Department
of Molecular Genetics and Cell Biology, University of Chicago, 920 East 58th Street, Chicago, Illinois 60637, United
States
| | - Zhe Liu
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Luke D. Lavis
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
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33
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Cosco ED, Arús BA, Spearman AL, Atallah TL, Lim I, Leland OS, Caram JR, Bischof TS, Bruns OT, Sletten EM. Bright Chromenylium Polymethine Dyes Enable Fast, Four-Color In Vivo Imaging with Shortwave Infrared Detection. J Am Chem Soc 2021; 143:6836-6846. [PMID: 33939921 DOI: 10.1021/jacs.0c11599] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Optical imaging within the shortwave infrared (SWIR, 1000-2000 nm) region of the electromagnetic spectrum has enabled high-resolution and high-contrast imaging in mice, non-invasively. Polymethine dyes, with their narrow absorption spectra and high absorption coefficients, are optimal probes for fast and multiplexed SWIR imaging. Here, we expand upon the multiplexing capabilities in SWIR imaging by obtaining brighter polymethine dyes with varied excitation wavelengths spaced throughout the near-infrared (700-1000 nm) region. Building on the flavylium polymethine dye scaffold, we explored derivatives with functional group substitution at the 2-position, deemed chromenylium polymethine dyes. The reported dyes have reduced nonradiative rates and enhanced emissive properties, enabling non-invasive imaging in mice in a single color at 300 fps and in three colors at 100 fps. Combined with polymethine dyes containing a red-shifted julolidine flavylium heterocycle and indocyanine green, distinct channels with well-separated excitation wavelengths provide non-invasive video-rate in vivo imaging in four colors.
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Affiliation(s)
- Emily D Cosco
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.,Helmholtz Pioneer Campus, Helmholtz Zentrum München, D-85764 Neuherberg, Germany
| | - Bernardo A Arús
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, D-85764 Neuherberg, Germany
| | - Anthony L Spearman
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Timothy L Atallah
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Irene Lim
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Olivia S Leland
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Justin R Caram
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Thomas S Bischof
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, D-85764 Neuherberg, Germany
| | - Oliver T Bruns
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, D-85764 Neuherberg, Germany.,School of Medicine, Technical University Munich, D-80333 München, Germany
| | - Ellen M Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
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34
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Lei Z, Zhang F. Molecular Engineering of NIR‐II Fluorophores for Improved Biomedical Detection. Angew Chem Int Ed Engl 2021; 60:16294-16308. [DOI: 10.1002/anie.202007040] [Citation(s) in RCA: 140] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Zuhai Lei
- Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and iChEM Fudan University Shanghai 200433 P. R. China
- School of Pharmacy Fudan University Shanghai 200433 P. R. China
| | - Fan Zhang
- Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and iChEM Fudan University Shanghai 200433 P. R. China
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35
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Lei Z, Zhang F. Molecular Engineering of NIR‐II Fluorophores for Improved Biomedical Detection. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202007040] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Zuhai Lei
- Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and iChEM Fudan University Shanghai 200433 P. R. China
- School of Pharmacy Fudan University Shanghai 200433 P. R. China
| | - Fan Zhang
- Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and iChEM Fudan University Shanghai 200433 P. R. China
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36
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Membrane dynamics are slowed for Alexa594-labeled membrane proteins due to substrate interactions. BBA ADVANCES 2021; 1:100026. [PMID: 37082018 PMCID: PMC10074974 DOI: 10.1016/j.bbadva.2021.100026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The addition of fluorescent dyes to proteins, lipids and other biological molecules can affect a range of processes such as mobility, molecular interactions, localization, and, ultimately, function. The dynamics of a protein can be dramatically affected if the label interacts non-specifically with the substrate or with other molecules in the system. To test how dye-substrate interactions affect protein diffusion, fluorescence recovery after photobleaching (FRAP) measurements were designed to explicitly determine the role of the dye on the diffusion of a transmembrane protein, Syntaxin1a, expressed on the cell surface. Syntaxin1a, was tagged with EGFP on the extracellular side and an EGFP nanobody with or without a dye label was attached. FRAP was performed on Syx1a-EGFP and the choice of cell growth substrate affected mobility in the presence of a dye labeled nanobody. This work provides evidence for choosing fibronectin (Fn) over poly-L-lysine (PLL) in FRAP and single molecule tracking measurements when using Alexa594, a common probe for red fluorescent measurements. Alexa594-labeled nanobody but not unlabeled nanobody, dramatically reduced the mobility of Syx1a-EGFP when cells were cultured on PLL. However, when Fn was used, the mobility returned. Mobility measured by single molecule tracking measurements align with the FRAP measurements with Fn coated surfaces being more mobile than PLL.
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37
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Gao Y, Wang C, Chi W, Liu X. Molecular Origins of Heteroatom Engineering on the Emission Wavelength Tuning, Quantum Yield Variations and Fluorogenicity of NBD-like SCOTfluors. Chem Asian J 2020; 15:4082-4086. [PMID: 33029926 DOI: 10.1002/asia.202000966] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/29/2020] [Indexed: 01/15/2023]
Abstract
Molecular engineering of fluorophore scaffolds, especially heteroatom replacement, is a promising method to yield novel fluorophores with tailored properties for various applications. Yet, molecular origins of the distinct fluorescent properties in newly developed SCOTfluors, i. e., varied emission wavelengths, distinct quantum yields, and fluorogenicity, remain elusive. Such understanding, however, is critical for the rational molecular engineering of high-performance fluorophores. Herein, we employed quantum chemical calculations to understand the structure-property relationships of nitrobenzoxadiazole (NBD)-like SCOTfluors. Our findings are important not only for the rational deployment of SCOTfluors, but also for the effective modifications of other fluorophore scaffolds, for satisfying the increasingly diversified requirements of bioimaging and biosensing applications.
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Affiliation(s)
- Ying Gao
- Jilin Engineering Normal University, Kaixuan Road 3050, Changchun, 130052, P. R. China.,Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Chao Wang
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Weijie Chi
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Xiaogang Liu
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
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38
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Deng F, Liu L, Huang W, Huang C, Qiao Q, Xu Z. Systematic study of synthesizing various heteroatom-substituted rhodamines from diaryl ether analogues. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118466. [PMID: 32521444 DOI: 10.1016/j.saa.2020.118466] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
The dye rhodamine, as the most popular scaffold to construct fluorescent labels and probes, has been explored extensively on its structure-fluorescence relationships. Particularly, the replacement of the oxygen atom in the 10th position with heteroatoms obtained various new rhodamines with improved photophysical properties, such as brightness, photostability, red-shifted emission and fluorogenicity. However, the applications of heteroatom-substituted rhodamines have been hindered by difficult synthetic routes. Herein, we explored the condensation strategy of diaryl ether analogues and o-tolualdehyde to synthesize various heteroatom-substituted rhodamines. We found that the electron property and steric effect in the rhodamine 10th position determined the synthetic yield. It's concluded that this condensation method was more suitable for the synthesis of heteroatom-substituted rhodamines with small or electron-donating groups like rhodamine, S-rhodamine and Si-rhodamine. We hope these results will benefit the design and synthesis of heteroatom-substituted rhodamines.
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Affiliation(s)
- Fei Deng
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, China; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Limin Liu
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, China.
| | - Wei Huang
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, China
| | - Chunfang Huang
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, China
| | - Qinglong Qiao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Zhaochao Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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39
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Santos FMF, Domínguez Z, Fernandes JPL, Parente Carvalho C, Collado D, Pérez-Inestrosa E, Pinto MV, Fernandes A, Arteaga JF, Pischel U, Gois PMP. Cyanine-Like Boronic Acid-Derived Salicylidenehydrazone Complexes (Cy-BASHY) for Bioimaging Applications. Chemistry 2020; 26:14064-14069. [PMID: 32449571 DOI: 10.1002/chem.202001623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Indexed: 12/14/2022]
Abstract
Boronic acid-derived salicylidenehydrazone complex (BASHY) dyes with a polymethine backbone were designed to yield efficient red-emitting and two-photon absorbing fluorophores that can be used as markers for astrocytes. The dyes are chemically stable in aqueous solution and do not undergo photodecomposition. Their photophysical properties can be electronically fine-tuned and thereby adapted to potentially different imaging situations and requirements.
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Affiliation(s)
- Fábio M F Santos
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Zoe Domínguez
- CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - João P L Fernandes
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Cátia Parente Carvalho
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Daniel Collado
- Department of Organic Chemistry, University of Málaga IBIMA, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry, University of Málaga IBIMA, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Maria V Pinto
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Adelaide Fernandes
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Jesús F Arteaga
- CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Uwe Pischel
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal.,CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
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40
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Deng F, Qiao Q, Li J, Yin W, Miao L, Liu X, Xu Z. Multiple Factors Regulate the Spirocyclization Equilibrium of Si-Rhodamines. J Phys Chem B 2020; 124:7467-7474. [PMID: 32790386 DOI: 10.1021/acs.jpcb.0c05642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Si-rhodamine has been extensively used in super-resolution fluorescence imaging in recent years. Its equilibrium between ring-closed nonfluorescent spirolactones and ring-opened fluorescent zwitterions endows Si-rhodamine with excellent fluorogenicity, membrane permeability, and photostability. In this paper, the equilibrium of Si-rhodamine between lactones and zwitterions was revealed to be greatly affected by various environmental factors, including molecular aggregation, solvent polarity, pH, metal ions, irradiation, and temperature. These environmental sensitivities make Si-rhodamine useful as a hydrochromic material, a fluorescent sensor array for metal ions or solvents, and a photoactivatable switch. Importantly, these results indicate that using Si-rhodamine as a fluorogenic probe or a blinking fluorophore in single-molecule localization super-resolution microscopy requires caution on possible false signals caused by its environmental sensitivity.
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Affiliation(s)
- Fei Deng
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.,School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, China
| | - Qinglong Qiao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jin Li
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Wenting Yin
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Lu Miao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xiaogang Liu
- Fluorescence Research Group, Singapore University of Technology and Design, Singapore 487372, Singapore
| | - Zhaochao Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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41
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Wang S, Li B, Zhang F. Molecular Fluorophores for Deep-Tissue Bioimaging. ACS CENTRAL SCIENCE 2020; 6:1302-1316. [PMID: 32875073 PMCID: PMC7453417 DOI: 10.1021/acscentsci.0c00544] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Indexed: 05/08/2023]
Abstract
Fluorescence imaging has made tremendous inroads toward understanding the complexity of biological systems, but in vivo deep-tissue imaging remains a great challenge due to the optical opacity of biological tissue. Recent improvements in laser and detector manufacturing have allowed the expansion of nonlinear and linear fluorescence imaging to the underexplored "tissue-transparent" second near-infrared (NIR-II; 1000-1700 nm) window, opening up new opportunities for optical access deep inside opaque tissue. Molecular fluorophores have historically played a major role in fluorescence bioimaging. It is increasingly important to design new molecular fluorophores to fully unlock the potential of NIR-II imaging techniques. In this outlook, we give an overview of the novel molecular fluorophores developed for deep-tissue bioimaging in the past five years and discuss their pros and cons in applications. Guidelines for designing new molecular fluorophores with the desirable properties are also provided.
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Affiliation(s)
| | | | - Fan Zhang
- Department of Chemistry,
State Key Laboratory of Molecular Engineering of Polymers, Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials and
iChem, Fudan University, Shanghai 200433, P. R. China
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42
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Weißenstein A, Vysotsky MO, Piantanida I, Würthner F. Naphthalene diimide–amino acid conjugates as novel fluorimetric and CD probes for differentiation between ds-DNA and ds-RNA. Beilstein J Org Chem 2020; 16:2032-2045. [PMID: 32874350 PMCID: PMC7445415 DOI: 10.3762/bjoc.16.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/04/2020] [Indexed: 11/23/2022] Open
Abstract
Two novel unnatural amino acids, prepared by linking a dicationic purple-coloured and fluorescent naphthalene diimide (NDI) at core position to amino acid side chains of variable length, strongly interacted with ds-DNA/RNA by threading intercalation. Different from a reference NDI dye with identical visible range absorbance (520–540 nm) and Stokes shifts in emission (+60 nm, quantum yield > 0.2), only these amino acid–NDI conjugates showed selective fluorimetric response for GC-DNA in respect to AT(U)-polynucleotides. The DNA/RNA binding-induced circular dichroism (ICD) response of NDI at 450–550 nm strongly depended on the length and rigidity of the linker to the amino acid unit, which controls the orientation of the NDI unit inside within the intercalative binding site. The ICD selectivity also depends on the type of polynucleotide, thus the studied NDI dyes act as dual fluorimetric/ICD probes for sensing the difference between here used GC-DNA, AT-DNA and AU-RNA.
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Affiliation(s)
- Annike Weißenstein
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Myroslav O Vysotsky
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Ivo Piantanida
- Division of Organic Chemistry & Biochemistry, Ruđer Bošković Institute, PO Box 180, 10002 Zagreb, Croatia
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074 Würzburg, Germany
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43
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Synthesis, spectral properties and evaluation of carboxy-functionalized 3-thiazolylcoumarins as blue-emitting fluorescent labeling reagents. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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A general method to optimize and functionalize red-shifted rhodamine dyes. Nat Methods 2020; 17:815-821. [PMID: 32719532 PMCID: PMC7396317 DOI: 10.1038/s41592-020-0909-6] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 06/22/2020] [Indexed: 12/29/2022]
Abstract
Expanding the palette of fluorescent dyes is vital to push the frontier of biological imaging. Although rhodamine dyes remain the premier type of small-molecule fluorophore due to their bioavailability and brightness, variants excited with far-red or near-infrared light suffer from poor performance due to their propensity to adopt a lipophilic, nonfluorescent form. We report a framework for rationalizing rhodamine behavior in biological environments and a general chemical modification for rhodamines that optimizes long-wavelength variants and enables facile functionalization with different chemical groups.
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45
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Fiala T, Wang J, Dunn M, Šebej P, Choi SJ, Nwadibia EC, Fialova E, Martinez DM, Cheetham CE, Fogle KJ, Palladino MJ, Freyberg Z, Sulzer D, Sames D. Chemical Targeting of Voltage Sensitive Dyes to Specific Cells and Molecules in the Brain. J Am Chem Soc 2020; 142:9285-9301. [PMID: 32395989 DOI: 10.1021/jacs.0c00861] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Voltage sensitive fluorescent dyes (VSDs) are important tools for probing signal transduction in neurons and other excitable cells. The impact of these highly lipophilic sensors has, however, been limited due to the lack of cell-specific targeting methods in brain tissue or living animals. We address this key challenge by introducing a nongenetic molecular platform for cell- and molecule-specific targeting of synthetic VSDs in the brain. We employ a dextran polymer particle to overcome the inherent lipophilicity of VSDs by dynamic encapsulation and high-affinity ligands to target the construct to specific neuronal cells utilizing only native components of the neurotransmission machinery at physiological expression levels. Dichloropane, a monoamine transporter ligand, enables targeting of dense dopaminergic axons in the mouse striatum and sparse noradrenergic axons in the mouse cortex in acute brain slices. PFQX in conjunction with ligand-directed acyl imidazole chemistry enables covalent labeling of AMPA-type glutamate receptors in the same brain regions. Probe variants bearing either a classical electrochromic ANEP dye or state-of-the-art VoltageFluor-type dye respond to membrane potential changes in a similar manner to the parent dyes, as shown by whole-cell patch recording. We demonstrate the feasibility of optical voltage recording with our probes in brain tissue with one-photon and two-photon fluorescence microscopy and define the signal limits of optical voltage imaging with synthetic sensors under a low photon budget determined by the native expression levels of the target proteins. This work demonstrates the feasibility of a chemical targeting approach and expands the possibilities of cell-specific imaging and pharmacology.
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Affiliation(s)
- Tomas Fiala
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Jihang Wang
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Matthew Dunn
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Peter Šebej
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Se Joon Choi
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York 10027, United States
| | - Ekeoma C Nwadibia
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Eva Fialova
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Diana M Martinez
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York 10027, United States
| | - Claire E Cheetham
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Keri J Fogle
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.,Pittsburgh Institute of Neurodegenerative Diseases (PIND), University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Michael J Palladino
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.,Pittsburgh Institute of Neurodegenerative Diseases (PIND), University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Zachary Freyberg
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States.,Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - David Sulzer
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York 10027, United States.,Department of Psychiatry, Columbia University Irving Medical Center, New York, New York 10027, United States.,Department of Pharmacology, Columbia University Irving Medical Center, New York, New York 10027, United States.,Department of Molecular Therapeutics, New York Psychiatric Institute, New York, New York 10032, United States
| | - Dalibor Sames
- Department of Chemistry, Columbia University, New York, New York 10027, United States.,NeuroTechnology Center at Columbia University, New York, New York 10027, United States
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46
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Poronik YM, Ambicki F, Tseng SM, Chou PT, Deperasińska I, Gryko DT. How an Eight-Membered Ring Alters the Rhodamine Chromophore. J Org Chem 2020; 85:5973-5980. [PMID: 32252525 PMCID: PMC7590985 DOI: 10.1021/acs.joc.0c00414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Readily available phenylene-1,3-diamines can be converted into unprecedented analogues of rhodamine and malachite green possessing a central eight-membered ring in three steps. The overall process couples a cyanine chromophore with a urea bridge giving rise to new dyes possessing distinct spectral characteristics: absorption of orange light combined with a weak emission of red light both in solution and in the crystalline state. Their photophysics is governed by the twist of lateral phenyl rings and intramolecular and intermolecular CT transitions.
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Affiliation(s)
- Yevgen M Poronik
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Filip Ambicki
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Sheng-Ming Tseng
- Department of Chemistry, National Taiwan University, 1 Roosevelt Road Section 4, 10617 Taipei, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, 1 Roosevelt Road Section 4, 10617 Taipei, Taiwan
| | - Irena Deperasińska
- Institute of Physics Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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47
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Werther P, Yserentant K, Braun F, Kaltwasser N, Popp C, Baalmann M, Herten D, Wombacher R. Live-Cell Localization Microscopy with a Fluorogenic and Self-Blinking Tetrazine Probe. Angew Chem Int Ed Engl 2020; 59:804-810. [PMID: 31638314 PMCID: PMC6972563 DOI: 10.1002/anie.201906806] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/11/2019] [Indexed: 11/15/2022]
Abstract
Recent developments in fluorescence microscopy call for novel small-molecule-based labels with multiple functionalities to satisfy different experimental requirements. A current limitation in the advancement of live-cell single-molecule localization microscopy is the high excitation power required to induce blinking. This is in marked contrast to the minimal phototoxicity required in live-cell experiments. At the same time, quality of super-resolution imaging depends on high label specificity, making removal of excess dye essential. Approaching both hurdles, we present the design and synthesis of a small-molecule label comprising both fluorogenic and self-blinking features. Bioorthogonal click chemistry ensures fast and highly selective attachment onto a variety of biomolecular targets. Along with spectroscopic characterization, we demonstrate that the probe improves quality and conditions for regular and single-molecule localization microscopy on live-cell samples.
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Affiliation(s)
- Philipp Werther
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 36469120HeidelbergGermany
| | - Klaus Yserentant
- Physikalisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 22969120HeidelbergGermany
- CellNetworks, Single-Molecule SpectroscopyRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 26769120HeidelbergGermany
- Fakultät für BiowissenschaftenRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 23469120HeidelbergGermany
| | - Felix Braun
- Physikalisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 22969120HeidelbergGermany
- CellNetworks, Single-Molecule SpectroscopyRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 26769120HeidelbergGermany
| | - Nicolai Kaltwasser
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 36469120HeidelbergGermany
| | - Christoph Popp
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 36469120HeidelbergGermany
| | - Mathis Baalmann
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 36469120HeidelbergGermany
| | - Dirk‐Peter Herten
- Physikalisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 22969120HeidelbergGermany
- CellNetworks, Single-Molecule SpectroscopyRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 26769120HeidelbergGermany
- Institute of Cardiovascular Sciences & School of ChemistryCollege of Medical and Dental SciencesMedical SchoolUniversity of BirminghamEdgbastonBirminghamB15 2TTUK
- Centre of Membrane Proteins and Receptors (COMPARE)Universities of Birmingham and NottinghamMidlandsUK
| | - Richard Wombacher
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 36469120HeidelbergGermany
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48
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Syntheses of o-iodobenzyl alcohols‒BODIPY structures as potential precursors of bimodal tags for positron emission tomography and optical imaging. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130765] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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49
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Werther P, Yserentant K, Braun F, Kaltwasser N, Popp C, Baalmann M, Herten D, Wombacher R. Live‐Cell Localization Microscopy with a Fluorogenic and Self‐Blinking Tetrazine Probe. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906806] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Philipp Werther
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Klaus Yserentant
- Physikalisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 229 69120 Heidelberg Germany
- CellNetworks, Single-Molecule SpectroscopyRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 267 69120 Heidelberg Germany
- Fakultät für BiowissenschaftenRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 234 69120 Heidelberg Germany
| | - Felix Braun
- Physikalisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 229 69120 Heidelberg Germany
- CellNetworks, Single-Molecule SpectroscopyRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 267 69120 Heidelberg Germany
| | - Nicolai Kaltwasser
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Christoph Popp
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Mathis Baalmann
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Dirk‐Peter Herten
- Physikalisch-Chemisches InstitutRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 229 69120 Heidelberg Germany
- CellNetworks, Single-Molecule SpectroscopyRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 267 69120 Heidelberg Germany
- Institute of Cardiovascular Sciences & School of ChemistryCollege of Medical and Dental SciencesMedical SchoolUniversity of Birmingham Edgbaston Birmingham B15 2TT UK
- Centre of Membrane Proteins and Receptors (COMPARE)Universities of Birmingham and Nottingham Midlands UK
| | - Richard Wombacher
- Institut für Pharmazie und Molekulare BiotechnologieRuprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 364 69120 Heidelberg Germany
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50
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Poronik YM, Vygranenko KV, Gryko D, Gryko DT. Rhodols - synthesis, photophysical properties and applications as fluorescent probes. Chem Soc Rev 2019; 48:5242-5265. [PMID: 31549709 DOI: 10.1039/c9cs00166b] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formal replacement of one dialkylamino group in rhodamines with a hydroxyl group transforms them into rhodols. This apparently minor difference is not as small as one may think; rhodamines belong to the cyanine family whereas rhodols belong to merocyanines. Discovered in the late 19th century, rhodols have only very recently begun to gain momentum in the field of advanced fluorescence imaging. This is in part due to the increased understanding of their photophysical properties, and new methods of synthesis. Rationalization of how the nature and arrangement of polar substituents around the core affect the photophysical properties of rhodols is now possible. The emergence of so-called π-expanded and heteroatom-modified rhodols has also allowed their fluorescence to be bathochromically shifted into regions applicable for biological imaging. This review serves to outline applicable synthetic strategies for the synthesis of rhodols, and to highlight important structure-property relationships. In the first part of this Review, various synthetic methods leading to rhodols are presented, followed by structural considerations and an overview of photophysical properties. The second part of this review is entirely devoted to the applications of rhodols as fluorescent reporters in biological imaging.
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Affiliation(s)
- Yevgen M Poronik
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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