1
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Shen T, Liu X. Photoinduced Charge Centralization Quenches the Fluorescence of Conjugation-Fused Tetrazine Labels with Red-to-Near-Infrared Emissions. Bioconjug Chem 2024; 35:1024-1032. [PMID: 38963403 DOI: 10.1021/acs.bioconjchem.4c00227] [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: 07/05/2024]
Abstract
Tetrazine-derived fluorogenic labels are extensively studied for their potential in biological and medical imaging. Nonetheless, the fluorescence quenching mechanism in numerous precursors continues to be debated, particularly as the wavelengths extend into the red and near-infrared (NIR) regions. This challenge poses obstacles to systematically optimizing their fluorogenicity, i.e., achieving red-shifted wavelengths and improved fluorescence turn-on signals through click reactions. This paper highlights the significance of photoinduced charge centralization (PCC), a quenching mechanism observed in tetrazine-fused fluorogenic labels with integrated π-conjugations. PCC is primarily responsible for the quenching effects observed in such labels emitting in the red-to-NIR spectrum. Drawing from structure-property relationships, this study proposes two molecular design strategies that incorporate the PCC mechanism and constitutional isomerization to develop high-performance tetrazine-based labels. These strategies facilitate multiplex fluorescence imaging following click reactions, promising significant advancements in bio-orthogonal imaging techniques.
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Affiliation(s)
- Tianruo Shen
- Science, Mathematics and Technology Cluster, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Xiaogang Liu
- Science, Mathematics and Technology Cluster, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
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2
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Booth E, Garre M, Wu D, Daly HC, O’Shea DF. A NIR-Fluorochrome for Live Cell Dual Emission and Lifetime Tracking from the First Plasma Membrane Interaction to Subcellular and Extracellular Locales. Molecules 2024; 29:2474. [PMID: 38893352 PMCID: PMC11174088 DOI: 10.3390/molecules29112474] [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: 04/19/2024] [Revised: 05/15/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Molecular probes with the ability to differentiate between subcellular variations in acidity levels remain important for the investigation of dynamic cellular processes and functions. In this context, a series of cyclic peptide and PEG bio-conjugated dual near-infrared emissive BF2-azadipyrromethene fluorophores with maxima emissions at 720 nm (at pH > 6) and 790 nm (at pH < 5) have been developed and their aqueous solution photophysical properties determined. Their inter-converting emissions and fluorescence lifetime characteristics were exploited to track their spatial and temporal progression from first contact with the plasma membrane to subcellular locales to their release within extracellular vesicles. A pH-dependent reversible phenolate/phenol interconversion on the fluorophore controlled the dynamic changes in dual emission responses and corresponding lifetime changes. Live-cell confocal microscopy experiments in the metastatic breast cancer cell line MDA-MB-231 confirmed the usability of the dual emissive properties for imaging over prolonged periods. All three derivatives performed as probes capable of real-time continuous imaging of fundamental cellular processes such as plasma membrane interaction, tracking endocytosis, lysosomal/large acidic vesicle accumulation, and efflux within extracellular vesicles without perturbing cellular function. Furthermore, fluorescence lifetime imaging microscopy provided valuable insights regarding fluorophore progression through intracellular microenvironments over time. Overall, the unique photophysical properties of these fluorophores show excellent potential for their use as information-rich probes.
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Affiliation(s)
| | | | | | | | - Donal F. O’Shea
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin, Ireland
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3
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Işık M, Kısaçam MA. Readily Accessible and Brightly Fluorogenic BODIPY/NBD-Tetrazines via S NAr Reactions. J Org Chem 2024; 89:6513-6519. [PMID: 38598957 PMCID: PMC11077493 DOI: 10.1021/acs.joc.3c02864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024]
Abstract
We describe SNAr reactions of some commercial amino-tetrazines and halo-dyes, which give efficiently quenched BODIPY/NBD-tetrazines (ΦFl < 0.01) in high yields and, importantly, with high purities affordable via simple silica gel chromatography only. The dyes exhibit large Stokes shifts, moderate environmental sensitivity, and emission enhancements (up to 193-fold) upon Tz ligation with BCN─a strained dienophile. They successfully serve as labels for HSA protein premodified with BCN, resulting in bright blue-green emission upon ligation.
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Affiliation(s)
- Murat Işık
- Department
of Food Engineering, Bingöl University, 12000 Bingöl, Türkiye
| | - Mehmet Ali Kısaçam
- Department
of Biochemistry, Faculty of Veterinary Medicine, Mustafa Kemal University, 31060 Hatay, Türkiye
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4
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Auvray M, Naud-Martin D, Fontaine G, Bolze F, Clavier G, Mahuteau-Betzer F. Ultrabright two-photon excitable red-emissive fluorogenic probes for fast and wash-free bioorthogonal labelling in live cells. Chem Sci 2023; 14:8119-8128. [PMID: 37538830 PMCID: PMC10395273 DOI: 10.1039/d3sc01754k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
Fluorogenic bioorthogonal reactions are promising tools for tracking small molecules or biomolecules in living organisms. Two-photon excitation, by shifting absorption towards the red, significantly increases the signal-to-noise ratio and decreases photodamage, while allowing imaging about 10 times deeper than with a confocal microscope. However, efficient two-photon excitable fluorogenic probes are currently lacking. We report here the design and synthesis of fluorogenic probes based on a two-photon excitable fluorophore and a tetrazine quenching moiety. These probes react with bicyclo[6.1.0]no-4-yn-9ylmethanol (BCN) with a good to impressive kinetic rate constant (up to 1.1 × 103 M-1 s-1) and emit in the red window with moderate to high turn-on ratios. TDDFT allowed the rationalization of both the kinetic and fluorogenic performance of the different probes. The best candidate displays a 13.8-fold turn-on measured by quantifying fluorescence intensities in live cells under one-photon excitation, whereas a value of 3 is sufficient for high contrast live-cell imaging. In addition, live-cell imaging under two-photon excitation confirmed that there was no need for washing to monitor the reaction between BCN and this probe since an 8.0-fold turn-on was measured under two-photon excitation. Finally, the high two-photon brightness of the clicked adduct (>300 GM) allows the use of a weak laser power compatible with in vivo imaging.
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Affiliation(s)
- Marie Auvray
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
| | - Delphine Naud-Martin
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
| | - Gaëlle Fontaine
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
| | - Frédéric Bolze
- UMR7199, Faculté de Pharmacie 67401 Illkirch-Graffenstaden France
| | | | - Florence Mahuteau-Betzer
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
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5
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Zhao Z, Zong Q, Li J, Jiang M, Wang K, Yuan Y. Dual stimulus-triggered bioorthogonal nanosystem for spatiotemporally controlled prodrug activation and near-infrared fluorescence imaging. Chem Commun (Camb) 2023; 59:3878-3881. [PMID: 36916644 DOI: 10.1039/d3cc00177f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
In this study, we combined low pH and cathepsin B dual-stimulus-triggered delivery carriers with a bioorthogonal reaction-activated prodrug to achieve regulated activation of the prodrug. A workable method for precise tumor therapy and imaging is provided by the bioorthogonal reaction, which activates the prodrug and fluorescent probe.
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Affiliation(s)
- Zhongyi Zhao
- School of Medicine, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Qingyu Zong
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China.
| | - Jun Li
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Maolin Jiang
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 511442, P. R. China
| | - Kewei Wang
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 511442, P. R. China
| | - Youyong Yuan
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China. .,School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 511442, P. R. China.,Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
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6
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Fitzgerald S, O'Shea DF. Continuous Flow Bioconjugations of NIR‐AZA Fluorophores via Strained Alkyne Cycloadditions with Intra‐Chip Fluorogenic Monitoring**. Chemistry 2022; 28:e202104111. [PMID: 34979050 PMCID: PMC9305252 DOI: 10.1002/chem.202104111] [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: 11/15/2021] [Indexed: 11/17/2022]
Abstract
The importance of bioconjugation reactions continues to grow for cell specific targeting and dual therapeutic plus diagnostic medical applications. This necessitates the development of new bioconjugation chemistries, in‐flow synthetic and analytical methods. With this goal, continuous flow bioconjugations were readily achieved with short residence times for strained alkyne substituted carbohydrate and therapeutic peptide biomolecules in reaction with azide and tetrazine substituted fluorophores. The strained alkyne substrates included substituted 2‐amino‐2‐deoxy‐α‐D‐glucopyranose, and the linear and cyclic peptide sequences QIRQQPRDPPTETLELEVSPDPAS‐OH and c(RGDfK) respectively. The catalyst and reagent‐free inverse electron demand tetrazine cycloadditions proved more favourable than the azide 1,3‐dipolar cycloadditions. Reaction completion was achieved with residence times of 5 min at 40 °C for tetrazine versus 10 min at 80 °C for azide cycloadditions. The use of a fluorogenic tetrazine fluorophore, in a glass channelled reactor chip, allowed for intra‐chip reaction monitoring by recording fluorescence intensities at various positions throughout the chip. As the Diels‐Alder reactions proceeded through the chip, the fluorescence intensity increased accordingly in real‐time. The application of continuous flow fluorogenic bioconjugations could offer an efficient translational access to theranostic agents.
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Affiliation(s)
| | - Donal F. O'Shea
- Chemistry Department, RCSI 123 St. Stephen's Green Dublin 2 Ireland
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7
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He Z, Ishizuka T, Hishikawa Y, Xu Y. Click chemistry for fluorescence imaging via combination of a BODIPY-based ‘turn-on’ probe and a norbornene glucosamine. Chem Commun (Camb) 2022; 58:12479-12482. [DOI: 10.1039/d2cc05359d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, we synthesized a novel near-infrared turn-on BODIPY probe and a new norbornene-modified glucosamine derivative.
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Affiliation(s)
- Zhiyong He
- Medical Sciences, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyo-take, Miyazaki 889-1692, Japan
| | - Takumi Ishizuka
- Department of Anatomy, Histochemistry and Cell Biology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Yoshitaka Hishikawa
- Department of Anatomy, Histochemistry and Cell Biology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
| | - Yan Xu
- Medical Sciences, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyo-take, Miyazaki 889-1692, Japan
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8
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Chen L, Li F, Li Y, Yang J, Li Y, He B. Red-emitting fluorogenic BODIPY-tetrazine probes for biological imaging. Chem Commun (Camb) 2021; 58:298-301. [PMID: 34889325 DOI: 10.1039/d1cc05863k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of new BODIPY-tetrazine derivatives have been developed with a twist intramolecular charge transfer (TICT) state in polar solvents, which is an electron transfer process that occurs upon photoexcitation in a molecule that usually consists of an electron donor and acceptor linked by a single bond. Among them, the BODIPY-tetrazine derivative 6i was stable towards long-term storage and red-emitting with excellent performance, and was further used to image trans-cyclooctene-labeled lipids in mammalian cells and cyclopropene-labeled sugars in cancer cells under no-wash conditions.
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Affiliation(s)
- Lei Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Key Laboratory of Pharmaceutics, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China.
| | - Fei Li
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang'an Campus: No. 620, West Chang'an Avenue, Chang'an, Xi'an, 710119, China.
| | - Yan Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Key Laboratory of Pharmaceutics, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China.
| | - Jun Yang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang'an Campus: No. 620, West Chang'an Avenue, Chang'an, Xi'an, 710119, China.
| | - Yongjun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Key Laboratory of Pharmaceutics, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China.
| | - Bin He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Key Laboratory of Pharmaceutics, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China.
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9
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Huang PJ, Kumarasamy K, Devendhiran T, Chen YC, Dong TY, Lin MC. BODIPY-based hydroxypyridyl derivative as a highly Ni2+-selective fluorescent chemosensor. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Schnell SD, González JA, Sklyaruk J, Linden A, Gademann K. Boron Trifluoride-Mediated Cycloaddition of 3-Bromotetrazine and Silyl Enol Ethers: Synthesis of 3-Bromo-pyridazines. J Org Chem 2021; 86:12008-12023. [PMID: 34342995 DOI: 10.1021/acs.joc.1c01384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Pyridazines are important scaffolds for medicinal chemistry or crop protection agents, yet the selective preparation of 3-bromo-pyridazines with high regiocontrol remains difficult. We achieved the Lewis acid-mediated inverse electron demand Diels-Alder reaction between 3-monosubstituted s-tetrazine and silyl enol ethers and obtained functionalized pyridazines. In the case of 1-monosubstituted silyl enol ethers, exclusive regioselectivity was observed. Downstream functionalization of the resulting 3-bromo-pyridazines was demonstrated utilizing several cross-coupling protocols to synthesize 3,4-disubstituted pyridazines with excellent control over the substitution pattern.
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Affiliation(s)
- Simon D Schnell
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Jorge A González
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Jan Sklyaruk
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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11
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Li H, Conde J, Guerreiro A, Bernardes GJL. Tetrazine Carbon Nanotubes for Pretargeted In Vivo “Click‐to‐Release” Bioorthogonal Tumour Imaging. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- He Li
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - João Conde
- Instituto de Medicina Molecular Faculdade de Medicina da Universidade de Lisboa Av. Prof. Egas Moniz 1649-028 Lisboa Portugal
| | - Ana Guerreiro
- Instituto de Medicina Molecular Faculdade de Medicina da Universidade de Lisboa Av. Prof. Egas Moniz 1649-028 Lisboa Portugal
| | - Gonçalo J. L. Bernardes
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Instituto de Medicina Molecular Faculdade de Medicina da Universidade de Lisboa Av. Prof. Egas Moniz 1649-028 Lisboa Portugal
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12
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Miomandre F, Audebert P. 1,2,4,5-Tetrazines: An intriguing heterocycles family with outstanding characteristics in the field of luminescence and electrochemistry. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2020. [DOI: 10.1016/j.jphotochemrev.2020.100372] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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13
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Li H, Conde J, Guerreiro A, Bernardes GJL. Tetrazine Carbon Nanotubes for Pretargeted In Vivo "Click-to-Release" Bioorthogonal Tumour Imaging. Angew Chem Int Ed Engl 2020; 59:16023-16032. [PMID: 32558207 PMCID: PMC7540421 DOI: 10.1002/anie.202008012] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Indexed: 12/26/2022]
Abstract
The bioorthogonal inverse‐electron‐demand Diels–Alder (IEDDA) cleavage reaction between tetrazine and trans‐cyclooctene (TCO) is a powerful way to control the release of bioactive agents and imaging probes. In this study, a pretargeted activation strategy using single‐walled carbon nanotubes (SWCNTs) that bear tetrazines (TZ@SWCNTs) and a TCO‐caged molecule was used to deliver active effector molecules. To optimize a turn‐on signal by using in vivo fluorescence imaging, we developed a new fluorogenic near‐infrared probe that can be activated by bioorthogonal chemistry and image tumours in mice by caging hemicyanine with TCO (tHCA). With our pretargeting strategy, we have shown selective doxorubicin prodrug activation and instantaneous fluorescence imaging in living cells. By combining a tHCA probe and a pretargeted bioorthogonal approach, real‐time, non‐invasive tumour visualization with a high target‐to‐background ratio was achieved in a xenograft mice tumour model. The combined advantages of enhanced stability, kinetics and biocompatibility, and the superior pharmacokinetics of tetrazine‐functionalised SWCNTs could allow application of targeted bioorthogonal decaging approaches with minimal off‐site activation of fluorophore/drug.
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Affiliation(s)
- He Li
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - João Conde
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
| | - Ana Guerreiro
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
| | - Gonçalo J L Bernardes
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
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14
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Galeta J, Dzijak R, Obořil J, Dračínský M, Vrabel M. A Systematic Study of Coumarin-Tetrazine Light-Up Probes for Bioorthogonal Fluorescence Imaging. Chemistry 2020; 26:9945-9953. [PMID: 32339341 PMCID: PMC7497033 DOI: 10.1002/chem.202001290] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Indexed: 12/20/2022]
Abstract
Fluorescent probes that light-up upon reaction with complementary bioorthogonal reagents are superior tools for no-wash fluorogenic bioimaging applications. In this work, a thorough study is presented on a set of seventeen structurally diverse coumarin-tetrazine probes that produce fluorescent dyes with exceptional turn-on ratios when reacted with trans-cyclooctene (TCO) and bicyclononyne (BCN) dienophiles. In general, formation of the fully aromatic pyridazine-containing dyes resulting from the reaction with BCN was found superior in terms of fluorogenicity. However, evaluation of the probes in cellular imaging experiments revealed that other factors, such as reaction kinetics and good cell permeability, prevail over the fluorescence turn-on properties. The best compound identified in this study showed excellent performance in live cell-labeling experiments and enabled no-wash fluorogenic imaging on a timescale of seconds.
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Affiliation(s)
- Juraj Galeta
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Rastislav Dzijak
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Jan Obořil
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
| | - Milan Vrabel
- Institute of Organic Chemistry and BiochemistryCzech Academy of SciencesFlemingovo nám. 2166 10PragueCzech Republic
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15
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Kim D, Lee JH, Koo JY, Kim HM, Park SB. Two-Photon and Multicolor Fluorogenic Bioorthogonal Probes Based on Tetrazine-Conjugated Naphthalene Fluorophores. Bioconjug Chem 2020; 31:1545-1550. [DOI: 10.1021/acs.bioconjchem.0c00197] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Dahham Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Jae-Hong Lee
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea
| | - Ja Young Koo
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Hwan Myung Kim
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea
| | - Seung Bum Park
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul 08826, Korea
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16
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Daly HC, Conroy E, Todor M, Wu D, Gallagher WM, O'Shea DF. An EPR Strategy for Bio-responsive Fluorescence Guided Surgery with Simulation of the Benefit for Imaging. Am J Cancer Res 2020; 10:3064-3082. [PMID: 32194855 PMCID: PMC7053210 DOI: 10.7150/thno.42702] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/09/2020] [Indexed: 12/11/2022] Open
Abstract
A successful matching of a PEG group size with the EPR effect for an off-to-on responsive NIR-fluorophore conjugate has been accomplished which allows two distinct in vivo tumor imaging periods, the first being the switch on during the initial tumor uptake via enhanced permeability into the ROI (as background is suppressed) and a second, later, due to enhanced retention within the tumor. Methods: Software simulation (https://mihaitodor.github.io/particle_simulation/index.html), synthetic chemistry, with in vitro and in vivo imaging have been synergistically employed to identify an optimal PEG conjugate of a bio-responsive NIR-AZA fluorophore for in vivo tumor imaging. Results: A bio-responsive NIR-AZA fluorophore conjugated to a 10 kDa PEG group has shown excellent in vivo imaging performance with sustained high tumor to background ratios and peak tumor emission within 24 h. Analysis of fluorescence profiles over 7 days has provided evidence for the EPR effect playing a positive role. Conclusion: Preclinical results show that exploiting the EPR effect by utilizing an optimized PEG substituent on a bio-responsive fluorophore may offer a means for intraoperative tumor margin delineation. The off-to-on responsive nature of the fluorophore makes tumor imaging achievable without waiting for clearance from normal tissue.
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17
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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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18
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Donnelly JL, Offenbartl-Stiegert D, Marín-Beloqui JM, Rizzello L, Battaglia G, Clarke TM, Howorka S, Wilden JD. Exploring the Relationship between BODIPY Structure and Spectroscopic Properties to Design Fluorophores for Bioimaging. Chemistry 2019; 26:863-872. [PMID: 31660647 DOI: 10.1002/chem.201904164] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/25/2019] [Indexed: 12/17/2022]
Abstract
Designing chromophores for biological applications requires a fundamental understanding of how the chemical structure of a chromophore influences its photophysical properties. We here describe the synthesis of a library of BODIPY dyes, exploring diversity at various positions around the BODIPY core. The results show that the nature and position of substituents have a dramatic effect on the spectroscopic properties. Substituting in a heavy atom or adjusting the size and orientation of a conjugated system provides a means of altering the spectroscopic profiles with high precision. The insight from the structure-activity relationship was applied to devise a new BODIPY dye with rationally designed photochemical properties including absorption towards the near-infrared region. The dye also exhibited switch-on fluorescence to enable visualisation of cells with high signal-to-noise ratio without washing-out of unbound dye. The BODIPY-based probe is non-cytotoxic and compatible with staining procedures including cell fixation and immunofluorescence microscopy.
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Affiliation(s)
- Joanna L Donnelly
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Institute of Structural and Molecular Biology, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Daniel Offenbartl-Stiegert
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Institute of Structural and Molecular Biology, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - José M Marín-Beloqui
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Loris Rizzello
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Institute of Physics of Living System, University College London, Gower Street, London, WC1E 6BT, UK.,IBEC-Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, 08028, Barcelona, Spain
| | - Guiseppe Battaglia
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Institute of Physics of Living System, University College London, Gower Street, London, WC1E 6BT, UK.,IBEC-Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, 08028, Barcelona, Spain.,ICREA-Institució Catalana de Recerca i Estudis Avançats, 08010, Barcelona, Spain
| | - Tracey M Clarke
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Stefan Howorka
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Institute of Structural and Molecular Biology, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Jonathan D Wilden
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Institute of Structural and Molecular Biology, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
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19
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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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20
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Canovas C, Moreau M, Vrigneaud JM, Bellaye PS, Collin B, Denat F, Goncalves V. Modular Assembly of Multimodal Imaging Agents through an Inverse Electron Demand Diels-Alder Reaction. Bioconjug Chem 2019; 30:888-897. [PMID: 30742423 DOI: 10.1021/acs.bioconjchem.9b00017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The combination of two imaging probes on the same biomolecule gives access to targeted bimodal imaging agents that can provide more accurate diagnosis, complementary information, or that may be used in different applications, such as nuclear imaging and fluorescence guided surgery. In this study, we demonstrate that dichlorotetrazine, a small, commercially available compound, can be used as a modular platform to easily assemble various imaging probes. Doubly labeled tetrazines can then be conjugated to a protein through a biorthogonal IEDDA reaction. A series of difunctionalized tetrazine compounds containing various chelating agents and fluorescent dyes was synthesized. As a proof of concept, one of these bimodal probes was conjugated to trastuzumab, previously modified with a constrained alkyne group, and the resulting dual-labeled antibody was evaluated in a mouse model, bearing a HER2-positive tumor. A significant uptake into tumor tissues was observed in vivo, by both SPECT-CT and fluorescence imaging, and confirmed ex vivo in biodistribution studies.
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Affiliation(s)
- Coline Canovas
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS , Université Bourgogne Franche-Comté , 9 avenue Alain Savary , 21000 , Dijon , France
| | - Mathieu Moreau
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS , Université Bourgogne Franche-Comté , 9 avenue Alain Savary , 21000 , Dijon , France
| | - Jean-Marc Vrigneaud
- Georges-François LECLERC Cancer Center - UNICANCER , 1 rue Pr Marion , 21079 , Dijon , France
| | - Pierre-Simon Bellaye
- Georges-François LECLERC Cancer Center - UNICANCER , 1 rue Pr Marion , 21079 , Dijon , France
| | - Bertrand Collin
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS , Université Bourgogne Franche-Comté , 9 avenue Alain Savary , 21000 , Dijon , France.,Georges-François LECLERC Cancer Center - UNICANCER , 1 rue Pr Marion , 21079 , Dijon , France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS , Université Bourgogne Franche-Comté , 9 avenue Alain Savary , 21000 , Dijon , France
| | - Victor Goncalves
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR6302, CNRS , Université Bourgogne Franche-Comté , 9 avenue Alain Savary , 21000 , Dijon , France
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21
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Devereux SJ, Cheung S, Daly HC, O'Shea DF, Quinn SJ. Multimodal Microscopy Distinguishes Extracellular Aggregation and Cellular Uptake of Single‐Walled Carbon Nanohorns. Chemistry 2018; 24:14162-14170. [DOI: 10.1002/chem.201801532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 07/11/2018] [Indexed: 12/22/2022]
Affiliation(s)
| | - Shane Cheung
- Department of ChemistryRCSI 123 St Stephen's Green Dublin 2 Ireland
| | - Harrison C. Daly
- Department of ChemistryRCSI 123 St Stephen's Green Dublin 2 Ireland
| | - Donal F. O'Shea
- Department of ChemistryRCSI 123 St Stephen's Green Dublin 2 Ireland
| | - Susan J. Quinn
- School of ChemistryUniversity College Dublin Belfield Dublin 4 Ireland
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22
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Kitteringham E, Wu D, Cheung S, Twamley B, O'Shea DF, Griffith DM. Development of a novel carboplatin like cytoplasmic trackable near infrared fluorophore conjugate via strain-promoted azide alkyne cycloaddition. J Inorg Biochem 2018; 182:150-157. [DOI: 10.1016/j.jinorgbio.2018.02.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/13/2022]
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23
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Zhang P, Wang Y, Qiu K, Zhao Z, Hu R, He C, Zhang Q, Chao H. A NIR phosphorescent osmium(ii) complex as a lysosome tracking reagent and photodynamic therapeutic agent. Chem Commun (Camb) 2017; 53:12341-12344. [DOI: 10.1039/c7cc07776a] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In comparison to a ruthenium(ii) complex, an osmium(ii) complex has great advantages of NIR phosphorescence imaging and NIR photodynamic therapy.
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Affiliation(s)
- Pingyu Zhang
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Yi Wang
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Kangqiang Qiu
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Zhiqian Zhao
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Rentao Hu
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Chuanxin He
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Qianling Zhang
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Hui Chao
- Shenzhen Key Laboratory of Functional Polymer
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
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