1
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Oda K, Nishiyama H, Nishida JI, Kawase T. 9,9-Bis[4-(N-aryl)phenyl]methylidene-xanthylidene Derivatives Displaying Mechano-, Crystallo-, and Thermochromism. Chempluschem 2023; 88:e202200360. [PMID: 36515279 DOI: 10.1002/cplu.202200360] [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: 11/11/2022] [Indexed: 11/30/2022]
Abstract
Tetraphenylethylene (TPE) derivatives bearing a xanthene moiety are of interest because they have novel optical properties. 9,9-Bis[4-(N,N-diphenylamino)phenyl] and 9,9-bis[4-(9-carbazolyl)-phenyl]methylidene-xanthylidenes 3 and 4 were synthesized using Suzuki-Miyaura coupling of 9,9-dibromomethylidene-xanthylidene with the corresponding boronic acids. Diphenylamino derivative 3 exhibits mechanochromism and mechanofluorochromism (MC and MFC) reflected in absorption and fluorescence color changes. In contrast, carbazolyl derivative 4 displays thermo- and crystallo-chromism in addition to MC and MFC in the solid state. Powder X-ray diffraction and single crystal X-ray crystallographic analysis reveal that the solid state photophysical properties of these substances are governed by conformational changes rather by the creation of planar π-conjugation extended geometries.
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Affiliation(s)
- Kasane Oda
- Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Hiroki Nishiyama
- Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Jun-Ichi Nishida
- Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
| | - Takeshi Kawase
- Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo, 671-2280, Japan
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2
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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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3
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Assies L, Mercier V, López-Andarias J, Roux A, Sakai N, Matile S. The Dynamic Range of Acidity: Tracking Rules for the Unidirectional Penetration of Cellular Compartments. Chembiochem 2022; 23:e202200192. [PMID: 35535626 PMCID: PMC9400975 DOI: 10.1002/cbic.202200192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/09/2022] [Indexed: 12/03/2022]
Abstract
Labeled ammonium cations with pKa∼7.4 accumulate in acidic organelles because they can be neutralized transiently to cross the membrane at cytosolic pH 7.2 but not at their internal pH<5.5. Retention in early endosomes with less acidic internal pH was achieved recently using weaker acids of up to pKa 9.8. We report here that primary ammonium cations with higher pKa 10.6, label early endosomes more efficiently. This maximized early endosome tracking coincides with increasing labeling of Golgi networks with similarly weak internal acidity. Guanidinium cations with pKa 13.5 cannot cross the plasma membrane in monomeric form and label the plasma membrane with selectivity for vesicles embarking into endocytosis. Self‐assembled into micelles, guanidinium cations enter cells like arginine‐rich cell‐penetrating peptides and, driven by their membrane potential, penetrate mitochondria unidirectionally despite their high inner pH. The resulting tracking rules with an approximated dynamic range of pKa change ∼3.5 are expected to be generally valid, thus enabling the design of chemistry tools for biology research in the broadest sense. From a practical point of view, most relevant are two complementary fluorescent flipper probes that can be used to image the mechanics at the very beginning of endocytosis.
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Affiliation(s)
- Lea Assies
- University of Geneva Faculty of Science: Universite de Geneve Faculte des Sciences, School of Chemistry and Biochemistry, SWITZERLAND
| | - Vincent Mercier
- University of Geneva Faculty of Science: Universite de Geneve Faculte des Sciences, School of Chemistry and Biochemistry, SWITZERLAND
| | - Javier López-Andarias
- University of Geneva Faculty of Science: Universite de Geneve Faculte des Sciences, School of Chemistry and Biochemistry, SWITZERLAND
| | - Aurelien Roux
- University of Geneva Faculty of Science: Universite de Geneve Faculte des Sciences, School of Chemistry and Biochemistry, SWITZERLAND
| | - Naomi Sakai
- University of Geneva Faculty of Science: Universite de Geneve Faculte des Sciences, School of Chemistry and Biochemistry, SWITZERLAND
| | - Stefan Matile
- University of Geneva, Department of Organic Chemistry, Quai Ernest-Ansermet 30, CH-1211, Geneva, SWITZERLAND
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4
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López‐Andarias J, Eblighatian K, Pasquer QTL, Assies L, Sakai N, Hoogendoorn S, Matile S. Photocleavable Fluorescent Membrane Tension Probes: Fast Release with Spatiotemporal Control in Inner Leaflets of Plasma Membrane, Nuclear Envelope, and Secretory Pathway. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Javier López‐Andarias
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Krikor Eblighatian
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Quentin T. L. Pasquer
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Lea Assies
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Sascha Hoogendoorn
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
| | - Stefan Matile
- Department of Organic Chemistry National Centre of Competence in Research (NCCR) Chemical Biology University of Geneva Geneva Switzerland
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5
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Carrod AJ, Graglia F, Male L, Le Duff C, Simpson P, Elsherif M, Ahmed Z, Butt H, Xu GX, Kam-Wing Lo K, Bertoncello P, Pikramenou Z. Photo- and Electrochemical Dual-Responsive Iridium Probe for Saccharide Detection. Chemistry 2021; 28:e202103541. [PMID: 34811834 PMCID: PMC9299874 DOI: 10.1002/chem.202103541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Indexed: 11/19/2022]
Abstract
Dual detection systems are of interest for rapid, accurate data collection in sensing systems and in vitro testing. We introduce an IrIII complex with a boronic acid receptor site attached to the 2‐phenylpyridine ligand as an ideal probe with photo‐ and electrochemical signals that is sensitive to monosaccharide binding in aqueous solution. The complex displays orange luminescence at 618 nm, which is reduced by 70 and 40 % upon binding of fructose and glucose, respectively. The electro‐chemiluminescent signal of the complex also shows a direct response to monosaccharide binding. The IrIII complex shows the same response upon incorporation into hydrogel matrices as in solution, thus demonstrating the potential of its integration into a device, as a nontoxic, simple‐to‐use tool to observe sugar binding over physiologically relevant pH ranges and saccharide concentrations. Moreover, the complex's luminescence is responsive to monosaccharide presence in cancer cells.
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Affiliation(s)
- Andrew J Carrod
- School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | | | - Louise Male
- School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | - Cécile Le Duff
- School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | - Peter Simpson
- School of Engineering, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | - Mohamed Elsherif
- School of Engineering, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | - Zubair Ahmed
- College of Medical and Dental Sciences, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | - Haider Butt
- School of Engineering, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
| | - Guang-Xi Xu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China
| | - Kenneth Kam-Wing Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China
| | | | - Zoe Pikramenou
- School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
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6
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López-Andarias J, Eblighatian K, Pasquer QTL, Assies L, Sakai N, Hoogendoorn S, Matile S. Photocleavable Fluorescent Membrane Tension Probes: Fast Release with Spatiotemporal Control in Inner Leaflets of Plasma Membrane, Nuclear Envelope, and Secretory Pathway. Angew Chem Int Ed Engl 2021; 61:e202113163. [PMID: 34734671 PMCID: PMC9299180 DOI: 10.1002/anie.202113163] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/25/2021] [Indexed: 12/25/2022]
Abstract
Mechanosensitive flipper probes are attracting interest as fluorescent reporters of membrane order and tension in biological systems. We introduce PhotoFlippers, which contain a photocleavable linker and an ultralong tether between mechanophore and various targeting motifs. Upon irradiation, the original probe is released and labels the most ordered membrane that is accessible by intermembrane transfer. Spatiotemporal control from photocleavable flippers is essential to access open, dynamic or elusive membrane motifs without chemical or physical interference. For instance, fast release with light is shown to place the original small‐molecule probes into the innermost leaflet of the nuclear envelope to image changes in membrane tension, at specific points in time of membrane trafficking along the secretory pathway, or in the inner leaflet of the plasma membrane to explore membrane asymmetry. These results identify PhotoFlippers as useful chemistry tools to enable research in biology.
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Affiliation(s)
- Javier López-Andarias
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Krikor Eblighatian
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Quentin T L Pasquer
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Lea Assies
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Sascha Hoogendoorn
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, National Centre of Competence in Research (NCCR) Chemical Biology, University of Geneva, Geneva, Switzerland
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7
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Ma Y, Colin C, Descamps J, Arbault S, Sojic N. Shadow Electrochemiluminescence Microscopy of Single Mitochondria. Angew Chem Int Ed Engl 2021; 60:18742-18749. [PMID: 34115447 DOI: 10.1002/anie.202105867] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Indexed: 12/20/2022]
Abstract
Mitochondria are the subcellular bioenergetic organelles. The analysis of their morphology and topology is essential to provide useful information on their activity and metabolism. Herein, we report a label-free shadow electrochemiluminescence (ECL) microscopy based on the spatial confinement of the ECL-emitting reactive layer to image single living mitochondria deposited on the electrode surface. The ECL mechanism of the freely-diffusing [Ru(bpy)3 ]2+ dye with the sacrificial tri-n-propylamine coreactant restrains the light-emitting region to a micrometric thickness allowing to visualize individual mitochondria with a remarkable sharp negative optical contrast. The imaging approach named "shadow ECL" (SECL) reflects the negative imprint of the local diffusional hindrance of the ECL reagents by each mitochondrion. The statistical analysis of the colocalization of the shadow ECL spots with the functional mitochondria revealed by classical fluorescent biomarkers, MitoTracker Deep Red and the endogenous intramitochondrial NADH, validates the reported methodology. The versatility and extreme sensitivity of the approach are further demonstrated by visualizing single mitochondria, which remain hardly detectable with the usual biomarkers. Finally, by alleviating problems of photobleaching and phototoxicity associated with conventional microscopy methods, SECL microscopy should find promising applications in the imaging of subcellular structures.
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Affiliation(s)
- Yumeng Ma
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607, Pessac, France
| | - Camille Colin
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607, Pessac, France
| | - Julie Descamps
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607, Pessac, France
| | - Stéphane Arbault
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607, Pessac, France.,Present address: Univ. Bordeaux, CNRS, Bordeaux INP, CBMN UMR 5248, Allée Geoffroy Saint Hilaire, 33600, Pessac, France
| | - Neso Sojic
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607, Pessac, France
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8
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Ma Y, Colin C, Descamps J, Arbault S, Sojic N. Shadow Electrochemiluminescence Microscopy of Single Mitochondria. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yumeng Ma
- University of Bordeaux Bordeaux INP ISM UMR CNRS 5255 33607 Pessac France
| | - Camille Colin
- University of Bordeaux Bordeaux INP ISM UMR CNRS 5255 33607 Pessac France
| | - Julie Descamps
- University of Bordeaux Bordeaux INP ISM UMR CNRS 5255 33607 Pessac France
| | - Stéphane Arbault
- University of Bordeaux Bordeaux INP ISM UMR CNRS 5255 33607 Pessac France
- Present address: Univ. Bordeaux CNRS Bordeaux INP CBMN UMR 5248 Allée Geoffroy Saint Hilaire 33600 Pessac France
| | - Neso Sojic
- University of Bordeaux Bordeaux INP ISM UMR CNRS 5255 33607 Pessac France
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