1
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Su H, Rong G, Li L, Cheng Y. Subcellular targeting strategies for protein and peptide delivery. Adv Drug Deliv Rev 2024; 212:115387. [PMID: 38964543 DOI: 10.1016/j.addr.2024.115387] [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: 06/15/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Cytosolic delivery of proteins and peptides provides opportunities for effective disease treatment, as they can specifically modulate intracellular processes. However, most of protein-based therapeutics only have extracellular targets and are cell-membrane impermeable due to relatively large size and hydrophilicity. The use of organelle-targeting strategy offers great potential to overcome extracellular and cell membrane barriers, and enables localization of protein and peptide therapeutics in the organelles. Although progresses have been made in the recent years, organelle-targeted protein and peptide delivery is still challenging and under exploration. We reviewed recent advances in subcellular targeted delivery of proteins/peptides with a focus on targeting mechanisms and strategies, and highlight recent examples of active and passive organelle-specific protein and peptide delivery systems. This emerging platform could open a new avenue to develop more effective protein and peptide therapeutics.
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Affiliation(s)
- Hao Su
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
| | - Guangyu Rong
- Department of Ophthalmology and Vision Science, Shanghai Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, 200030, China
| | - Longjie Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Yiyun Cheng
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China.
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2
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Yang Z, Li X, Sun T, Bian J, Bu X, Ge X, Sun J, Liu Z, Xie Z, Xi P, Ai Q, Wei C, Gao B. Multicolor Tuning of Perylene Diimides Dyes for Targeted Organelle Imaging In Vivo. Anal Chem 2024. [PMID: 39023238 DOI: 10.1021/acs.analchem.4c01601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The adjustment of the emission wavelengths and cell permeability of the perylene diimides (PDI) for multicolor cell imaging is a great challenge. Herein, based on a bay-region substituent engineering strategy, multicolor perylene diimides (MCPDI) were rationally designed and synthesized by introducing azetidine substituents on the bay region of PDIs. With the fine-tuned electron-donating ability of the azetidine substituents, these MCPDI showed high brightness, orange, red, and near infrared (NIR) fluorescence along with Stokes shifts increasing from 35 to 110 nm. Interestingly, azetidine substituents distorted to the plane of the MCPDI dyes, and the twist angle of monosubstituted MCPDI was larger than that of disubstituted MCPDI, which might efficiently decrease their π-π stacking. Moreover, all of these MCPDI dyes were cell-permeable and selectively stained various organelles for multicolor imaging of multiple organelles in living cells. Two-color imaging of lipid droplets (LDs) and other organelles stained with MCPDI dyes was performed to reveal the interaction between the LDs and other organelles in living cells. Furthermore, a NIR-emitting MCPDI dye with a mitochondria-targeted characteristic was successfully applied for tumor-specific imaging. The facile synthesis, excellent stability, high brightness, tunable fluorescence emission, and Stokes shifts make these MCPDI promising fluorescent probes for biological applications.
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Affiliation(s)
- Zikang Yang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Xinwei Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Tingting Sun
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jiqing Bian
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Xiaoyu Bu
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Xichuan Ge
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Jing Sun
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Zugang Liu
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Peng Xi
- National Biomedical Imaging Center, Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, P. R. China
| | - Qi Ai
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China
| | - Chao Wei
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
| | - Baoxiang Gao
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding 071002, P. R. China
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3
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Peng T, Chen J, Liu R, Qu J. A benzothiophene-based fluorescent probe with dual-functional to polarity and cyanide for practical applications in living cells and real water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 314:124198. [PMID: 38552540 DOI: 10.1016/j.saa.2024.124198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 03/09/2024] [Accepted: 03/26/2024] [Indexed: 04/20/2024]
Abstract
Polarity is a significant intracellular environmental parameter associated with cancer, while cyanide (CN-) is known to be highly toxic to humans. In this work, we designed a dual-functional fluorescent probe (TPABT) for simultaneous detection of polarity and CN-. As a polarity sensor, the probe exhibits NIR emission at 766 nm in 1,4-dioxane (non-polar solvent), whose emission intensity is 71-fold stronger than that in water (polar solvent). Meanwhile, the fluorescence intensity and quantum yield are linearly related to solvent polarity, confirming the polarity response ability of TPABT. For cell polarity detection, low cytotoxicity and polarity sensitivity of probe enable the applications for differentiating cancer cells (HeLa, 4TI) from normal cells (HUV, 3 T3) and monitoring the polarity changes of 4TI cells. As a CN- sensor, TPABT displays a turn-on fluorescence at 640 nm upon the addition of CN-, with advantages of anti-interference, response in aqueous media and low detection limit (22 nM). Additionally, we further explored the practical applications of TPABT for CN- determination in three types of real water samples (drinking water, tap water and lake water) and living cells. Notably, TPABT responses to polarity and CN- in two independent fluorescence channels of 766 and 640 nm, respectively, ensuring the dual functions for polarity and CN- sensing. Consequently, this multi-responsive fluorescent probe TPABT is promising to diagnose polarity-related diseases and detect CN- in real environments.
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Affiliation(s)
- Ting Peng
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Jian Chen
- Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China
| | - Ruiyuan Liu
- Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China.
| | - Jinqing Qu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
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4
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Nam KH, Xu Y. Structural Analysis of the Large Stokes Shift Red Fluorescent Protein tKeima. Molecules 2024; 29:2579. [PMID: 38893454 PMCID: PMC11173989 DOI: 10.3390/molecules29112579] [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: 04/25/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
The Keima family comprises large Stokes shift fluorescent proteins that are useful for dual-color fluorescence cross-correlation spectroscopy and multicolor imaging. The tKeima is a tetrameric large Stokes shift fluorescent protein and serves as the ancestor fluorescent protein for both dKeima and mKeima. The spectroscopic properties of tKeima have been previously reported; however, its structural basis and molecular properties have not yet been elucidated. In this study, we present the crystallographic results of the large Stokes shift fluorescent protein tKeima. The purified tKeima protein spontaneously crystallized after purification without further crystallization. The crystal structure of tKeima was determined at 3.0 Å resolution, revealing a β-barrel fold containing the Gln-Tyr-Gly chromophores mainly with cis-conformation. The tetrameric interfaces of tKeima were stabilized by numerous hydrogen bonds and salt-bridge interactions. These key residues distinguish the substituted residues in dKeima and mKeima. The key structure-based residues involved in the tetramer formation of tKeima provide insights into the generation of a new type of monomeric mKeima. This structural analysis expands our knowledge of the Keima family and provides insights into its protein engineering.
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Affiliation(s)
- Ki Hyun Nam
- College of General Education, Kookmin University, Seoul 02707, Republic of Korea
| | - Yongbin Xu
- Department of Bioengineering, College of Life Science, Dalian Minzu University, Dalian 116600, China
- Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
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5
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Ohno H, Sasaki E, Yamada S, Hanaoka K. Recent advances in Si-rhodamine-based fluorescent probes for live-cell imaging. Org Biomol Chem 2024; 22:3099-3108. [PMID: 38444309 DOI: 10.1039/d4ob00130c] [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: 03/07/2024]
Abstract
Fluorescence imaging is a powerful technique for visualizing biological events in living samples with high temporal and spatial resolution. Fluorescent probes emitting far-red to near infrared (NIR) fluorescence are particularly advantageous for in vivo imaging due to their high tissue permeability and low autofluorescence, as well as their suitability for multicolor imaging. Among the far-red to NIR fluorophores, Si-rhodamine is one of the most practical fluorophores for the development of tailor-made NIR fluorescent probes because of the relative ease of synthesis of various derivatives, the unique intramolecular spirocyclization behavior, and the relatively high water solubility and high photostability of the probes. This review summarizes these features of Si-rhodamines and presents recent advances in the synthesis and applications of far-red to NIR fluorescent probes based on Si-rhodamines, focusing on live-cell imaging applications such as fluorogenic probes, super-resolution imaging and dye-protein hybrid-based indicators.
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Affiliation(s)
- Hisashi Ohno
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
| | - Eita Sasaki
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
- Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
| | - Sota Yamada
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
| | - Kenjiro Hanaoka
- Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan.
- Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
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6
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Yang J, Xu Z, Yu L, Wang B, Hu R, Tang J, Lv J, Xiao H, Tan X, Wang G, Li JX, Liu Y, Shao PL, Zhang B. Organic Fluorophores with Large Stokes Shift for the Visualization of Rapid Protein and Nucleic Acid Assays. Angew Chem Int Ed Engl 2024; 63:e202318800. [PMID: 38443316 DOI: 10.1002/anie.202318800] [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: 12/07/2023] [Revised: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 03/07/2024]
Abstract
Organic small-molecule fluorophores, characterized by flexible chemical structure and adjustable optical performance, have shown tremendous potential in biosensing. However, classical organic fluorophore motifs feature large overlap between excitation and emission spectra, leading to the requirement of advanced optical set up to filter desired signal, which limits their application in scenarios with simple settings. Here, a series of wavelength-tunable small-molecule fluorescent dyes (PTs) bearing simple organic moieties have been developed, which exhibit Stokes shift up to 262 nm, molar extinction coefficients ranged 30,000-100,000 M-1 cm-1, with quantum yields up to 54.8 %. Furthermore, these dyes were formulated into fluorescent nanoparticles (PT-NPs), and applied in lateral flow assay (LFA). Consequently, limit of detection for SARS-CoV-2 nucleocapsid protein reached 20 fM with naked eye, a 100-fold improvement in sensitivity compared to the pM detection level for colloidal gold-based LFA. Besides, combined with loop-mediated isothermal amplification (LAMP), the LFA system achieved the visualization of single copy level nucleic acid detection for monkeypox (Mpox).
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Affiliation(s)
- Jingkai Yang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Ziyi Xu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Le Yu
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University. Xi'an, Xi An Shi, 710127, China
| | - Bingyun Wang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Ruibin Hu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Jiahu Tang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Jiahui Lv
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Hongjun Xiao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Xuan Tan
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Guanghui Wang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Jia-Xin Li
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ying Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Pan-Lin Shao
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Bo Zhang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
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Gregor C, Grimm F, Rehman J, Wurm CA, Egner A. Click Chemistry with Cell-Permeable Fluorophores Expands the Choice of Bioorthogonal Markers for Two-Color Live-Cell STED Nanoscopy. Cells 2024; 13:683. [PMID: 38667298 PMCID: PMC11049381 DOI: 10.3390/cells13080683] [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: 02/02/2024] [Revised: 03/17/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
STED nanoscopy allows for the direct observation of dynamic processes in living cells and tissues with diffraction-unlimited resolution. Although fluorescent proteins can be used for STED imaging, these labels are often outperformed in photostability by organic fluorescent dyes. This feature is especially crucial for time-lapse imaging. Unlike fluorescent proteins, organic fluorophores cannot be genetically fused to a target protein but require different labeling strategies. To achieve simultaneous imaging of more than one protein in the interior of the cell with organic fluorophores, bioorthogonal labeling techniques and cell-permeable dyes are needed. In addition, the fluorophores should preferentially emit in the red spectral range to reduce the potential phototoxic effects that can be induced by the STED light, which further restricts the choice of suitable markers. In this work, we selected five different cell-permeable organic dyes that fulfill all of the above requirements and applied them for SPIEDAC click labeling inside living cells. By combining click-chemistry-based protein labeling with other orthogonal and highly specific labeling methods, we demonstrate two-color STED imaging of different target structures in living specimens using different dye pairs. The excellent photostability of the dyes enables STED imaging for up to 60 frames, allowing the observation of dynamic processes in living cells over extended time periods at super-resolution.
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Affiliation(s)
- Carola Gregor
- Department of Optical Nanoscopy, Institut für Nanophotonik Göttingen e.V., 37077 Göttingen, Germany;
- Cluster of Excellence “Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, 37075 Göttingen, Germany
| | - Florian Grimm
- Abberior GmbH, Hans-Adolf-Krebs Weg 1, 37077 Göttingen, Germany; (F.G.); (J.R.)
| | - Jasmin Rehman
- Abberior GmbH, Hans-Adolf-Krebs Weg 1, 37077 Göttingen, Germany; (F.G.); (J.R.)
| | - Christian A. Wurm
- Abberior GmbH, Hans-Adolf-Krebs Weg 1, 37077 Göttingen, Germany; (F.G.); (J.R.)
| | - Alexander Egner
- Department of Optical Nanoscopy, Institut für Nanophotonik Göttingen e.V., 37077 Göttingen, Germany;
- Cluster of Excellence “Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, 37075 Göttingen, Germany
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8
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Dunlop D, Horváth P, Klán P, Slanina T, Šebej P. Central Ring Puckering Enhances the Stokes Shift of Xanthene Dyes. Chemistry 2024; 30:e202400024. [PMID: 38197554 DOI: 10.1002/chem.202400024] [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: 01/03/2024] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/11/2024]
Abstract
Small-molecule dyes are generally designed based on well-understood electronic effects. However, steric hindrance can promote excited-state geometric relaxation, increasing the difference between the positions of absorption and emission bands (the Stokes shift). Accordingly, we hypothesized that sterically induced central ring puckering in xanthene dyes could be used to systematically increase their Stokes shift. Through a combined experimental/quantum-chemical approach, we screened a group of (9-acylimino)-pyronin dyes with a perturbed central ring geometry. Our results showed that an atom with sp3 hybridization in position 10 of (9-acylimino)-pyronins induces central ring puckering and facilitates excited-state geometric relaxation, thereby markedly enhancing their Stokes shifts (by up to ~2000 cm-1). Thus, we prepared fluorescent (9-acylimino)-pyronin pH sensors, which showed a Stokes shift disparity between acid and base forms of up to ~8700 cm-1. Moreover, the concept of ring puckering-enhanced Stokes shift can be applied to a wide range of xanthene analogues found in the literature. Therefore, central ring puckering may be reliably used as a strategy for enhancing Stokes shifts in the rational design of dyes.
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Affiliation(s)
- David Dunlop
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, Prague 6, 160 00, Czech Republic
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic
| | - Peter Horváth
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Petr Klán
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Tomáš Slanina
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, Prague 6, 160 00, Czech Republic
| | - Peter Šebej
- RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
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9
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Gao D, Zhang A, Lyu B, Ma J. Visual and rapid fluorescence sensing for hexavalent chromium by hydroxypropyl chitosan passivated bismuth-based perovskite quantum dots. Mikrochim Acta 2024; 191:219. [PMID: 38530477 DOI: 10.1007/s00604-024-06251-1] [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: 12/01/2023] [Accepted: 02/05/2024] [Indexed: 03/28/2024]
Abstract
Hydroxypropyl chitosan-Cs3Bi2Cl9 perovskite quantum dots (HPCS-PQDs) were synthesized by a simple ligand-assisted reprecipitation method via green hydroxypropyl chitosan as the ligand and used as the specific signal of a fluorescence probe to achieve the highly sensitive detection of hexavalent chromium (Cr(VI)) and compared with chitosan-Cs3Bi2Cl9 QDs (CS-PQDs). HPCS-PQDs with multiple active hydroxyl passivations were found to enhance the photoluminescence quantum yield (PLQY) by 90%. After being placed in aqueous solution and irradiated with ultraviolet light for 96 h the fluorescence intensity of HPCS-PQDs remained above 60%. The blue emission of HPCS-PQDs has a good selectivity and short response time (30 s) for Cr(VI). A good linear relationship is established between the fluorescence quenching rate of the HPCS-PQDs and concentration of Cr(VI) from 0.8 to 400 µM, with a limit of detection (LOD) of 0.27 µM. The fluorescence quenching mechanism is the static quenching and internal filtration effect caused by HPCS-PQDs forming a non-fluorescent ground-state complex with Cr(VI). The sensor can not only be used to detect Cr(VI) in water samples with high accuracy but can also be prepared as a test paper for the detection for Cr(VI).
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Affiliation(s)
- Dangge Gao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, Shaanxi, China.
| | - Ailin Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, Shaanxi, China
| | - Bin Lyu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, Shaanxi, China.
| | - Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China.
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, Shaanxi, China.
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10
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Jiang G, Liu H, Liu H, Ke G, Ren TB, Xiong B, Zhang XB, Yuan L. Chemical Approaches to Optimize the Properties of Organic Fluorophores for Imaging and Sensing. Angew Chem Int Ed Engl 2024; 63:e202315217. [PMID: 38081782 DOI: 10.1002/anie.202315217] [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: 10/09/2023] [Indexed: 12/30/2023]
Abstract
Organic fluorophores are indispensable tools in cells, tissue and in vivo imaging, and have enabled much progress in the wide range of biological and biomedical fields. However, many available dyes suffer from insufficient performances, such as short absorption and emission wavelength, low brightness, poor stability, small Stokes shift, and unsuitable permeability, restricting their application in advanced imaging technology and complex imaging. Over the past two decades, many efforts have been made to improve these performances of fluorophores. Starting with the luminescence principle of fluorophores, this review clarifies the mechanisms of the insufficient performance for traditional fluorophores to a certain extent, systematically summarizes the modified approaches of optimizing properties, highlights the typical applications of the improved fluorophores in imaging and sensing, and indicates existing problems and challenges in this area. This progress not only proves the significance of improving fluorophores properties, but also provide a theoretical guidance for the development of high-performance fluorophores.
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Affiliation(s)
- Gangwei Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Han Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Hong Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Guoliang Ke
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Bin Xiong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
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11
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He D, Yan M, Sun Q, Zhang M, Xia Y, Sun Y, Li Z. Ketocyanine-Based Fluorescent Probe Revealing the Polarity Heterogeneity of Lipid Droplets and Enabling Accurate Diagnosis of Hepatocellular Carcinoma. Adv Healthc Mater 2024; 13:e2303212. [PMID: 38241604 DOI: 10.1002/adhm.202303212] [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: 09/23/2023] [Revised: 01/02/2024] [Indexed: 01/21/2024]
Abstract
Hepatocellular carcinoma (HCC) has gradually become a pronoun for terrifying death owing to its high mortality rate. With the progression of HCC, lipid droplets (LDs) in HCC cells exhibit specific variations such as increased LDs number and decreased polarity, which can serve as the diagnostic target. However, developing an effective method to achieve HCC diagnosis and reveal LDs polarity heterogeneity is still a crucial challenge. Herein, the first high-performance LDs-targeting probe (1) is reported based on ketocyanine strategy with ultrasensitive polarity-responding ability and near-infrared emission. Probe 1 shows excellent sensitivity to polarity parameter Δf (0.027-0.290) with 808-fold fluorescence enhancement and the emission wavelength red-shifts 91 nm. In HCC cells, probe 1 shows a 2.5- to 5.9-fold fluorescence enhancement compared with normal and other cancer cells which exceeds clinical threshold of 2.0, indicating probe 1 can distinguish HCC cells. The LDs polarity heterogeneity is revealed and it displays a sequence, HCC cells < other cancer cells < normal cells, which may provide useful insight to engineer LDs-targeting probes for HCC cell discrimination. Finally, probe 1 realizes accurate HCC diagnosis on the cellular, organ, and in vivo levels, providing a satisfying tool for clinical HCC diagnosis and surgical navigation.
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Affiliation(s)
- Deming He
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
| | - Minmin Yan
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
| | - Qiuling Sun
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
| | - Mingwei Zhang
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
| | - Yu Xia
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
| | - Yuanqiang Sun
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
| | - Zhaohui Li
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou, 450001, China
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12
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Zhang H, Xiang FF, Liu YZ, Chen YJ, Zhou DH, Liu YH, Chen SY, Yu XQ, Li K. Molecular Engineering of Sulfone-Xanthone Chromophore for Enhanced Fluorescence Navigation. JACS AU 2023; 3:3462-3472. [PMID: 38155649 PMCID: PMC10751763 DOI: 10.1021/jacsau.3c00613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/07/2023] [Accepted: 11/20/2023] [Indexed: 12/30/2023]
Abstract
Enriching the palette of high-performance fluorescent dyes is vital to support the frontier of biomedical imaging. Although various rhodamine skeletons remain the premier type of small-molecule fluorophores due to the apparent high brightness and flexible modifiability, they still suffer from the inherent defect of small Stokes shift due to the nonideal fluorescence imaging signal-to-background ratio. Especially, the rising class of fluorescent dyes, sulfone-substituted xanthone, exhibits great potential, but low chemical stability is also pointed out as the problem. Molecular engineering of sulfone-xanthone to obtain a large Stokes shift and high stability is highly desired, but it is still scarce. Herein, we present the combination modification method for optimizing the performance of sulfone-xanthone. These redesigned fluorescent skeletons owned greatly improved stability and Stokes shift compared with the parent sulfone-rhodamine. To the proof of bioimaging capacity, annexin protein-targeted peptide LS301 was introduced to the most promising dyes, J-S-ARh, to form the tumor-targeted fluorescent probe, J-S-LS301. The resulting probe, J-S-LS301, can be an outstanding fluorescence tool for the orthotopic transplantation tumor model of hepatocellular carcinoma imaging and on-site pathological analysis. In summary, the combination method could serve as a basis for rational optimization of sulfone-xanthone. Overall, the chemistry reported here broadens the scope of accessible sulfone-xanthone functionality and, in turn, enables to facilitate the translation of biomedical research toward the clinical domain.
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Affiliation(s)
- Hong Zhang
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
- Department
of Radiology, West China Hospital, Sichuan
University, No. 37, Guoxue
Street, Chengdu 610041, P. R. China
| | - Fei-Fan Xiang
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
| | - Yan-Zhao Liu
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
| | - Yu-Jin Chen
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
| | - Ding-Heng Zhou
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
| | - Yan-Hong Liu
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
| | - Shan-Yong Chen
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
| | - Xiao-Qi Yu
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
- Asymmetric
Synthesis and Chiral Technology Key Laboratory of Sichuan Province,
Department of Chemistry, Xihua University, Chengdu 610039, P. R. China
| | - Kun Li
- Key
Laboratory of Green Chemistry and Technology of Ministry of Education,
College of Chemistry, Sichuan University, 29, Wangjiang Road, Chengdu 610064, P. R. China
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13
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Chen JY, Tang AL, Yang P, Yang LL, Tan S, Ma WJ, Liu ST, Huang HY, Zhou X, Liu LW, Yang S. Highly Selective and Rapid "Turn-On" Fluorogenic Chemosensor for Detection of Salicylic Acid in Plants and Food Samples. ACS Sens 2023; 8:4020-4030. [PMID: 37917801 DOI: 10.1021/acssensors.3c00159] [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: 11/04/2023]
Abstract
Salicylic acid (SA) is one of the chemical molecules, involved in plant growth and immunity, thereby contributing to the control of pests and pathogens, and even applied in fruit and vegetable preservation. However, only a few tools have ever been designed or executed to understand the physiological processes induced by SA or its function in plant immunity and residue detection in food. Hence, three Rh6G-based fluorogenic chemosensors were synthesized to detect phytohormone SA based on the "OFF-ON" mechanism. The probes showed high selectivity, ultrafast response time (<60 s), and nanomolar detection limit for SA. Moreover, the probe possessed outstanding profiling that can be successfully used for SA imaging of callus and plants. Furthermore, the fluorescence pattern indicated that SA could occur in the distal transport in plants. These remarkable results contribute to improving our understanding of the multiple physiological and pathological processes involved in SA for plant disease diagnosis and for the development of immune activators. In addition, SA detection in some agricultural products used probes to extend the practical application because its use is prohibited in some countries and is harmful to SA-sensitized persons. Interestingly, the as-obtained test paper displayed that SA could be imaged by ultraviolet (UV) and was directly visible to the naked eye. Given the above outcomes, these probes could be used to monitor SA in vitro and in vivo, including, but not limited to, plant biology, food residue detection, and sewage detection.
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Affiliation(s)
- Jie-Ying Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - A-Ling Tang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Ping Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Lin-Lin Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shuai Tan
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wen-Jing Ma
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shi-Tao Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hou-Yun Huang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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14
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Samanta S, Lai K, Wu F, Liu Y, Cai S, Yang X, Qu J, Yang Z. Xanthene, cyanine, oxazine and BODIPY: the four pillars of the fluorophore empire for super-resolution bioimaging. Chem Soc Rev 2023; 52:7197-7261. [PMID: 37743716 DOI: 10.1039/d2cs00905f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
In the realm of biological research, the invention of super-resolution microscopy (SRM) has enabled the visualization of ultrafine sub-cellular structures and their functions in live cells at the nano-scale level, beyond the diffraction limit, which has opened up a new window for advanced biomedical studies to unravel the complex unknown details of physiological disorders at the sub-cellular level with unprecedented resolution and clarity. However, most of the SRM techniques are highly reliant on the personalized special photophysical features of the fluorophores. In recent times, there has been an unprecedented surge in the development of robust new fluorophore systems with personalized features for various super-resolution imaging techniques. To date, xanthene, cyanine, oxazine and BODIPY cores have been authoritatively utilized as the basic fluorophore units in most of the small-molecule-based organic fluorescent probe designing strategies for SRM owing to their excellent photophysical characteristics and easy synthetic acquiescence. Since the future of next-generation SRM studies will be decided by the availability of advanced fluorescent probes and these four fluorescent building blocks will play an important role in progressive new fluorophore design, there is an urgent need to review the recent advancements in designing fluorophores for different SRM methods based on these fluorescent dye cores. This review article not only includes a comprehensive discussion about the recent developments in designing fluorescent probes for various SRM techniques based on these four important fluorophore building blocks with special emphasis on their effective integration into live cell super-resolution bio-imaging applications but also critically evaluates the background of each of the fluorescent dye cores to highlight their merits and demerits towards developing newer fluorescent probes for SRM.
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Affiliation(s)
- Soham Samanta
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Kaitao Lai
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Feihu Wu
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Yingchao Liu
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Songtao Cai
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Xusan Yang
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Junle Qu
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Zhigang Yang
- Center for Biomedical Optics and Photonics & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
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15
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Wang X, Liu Y, Wang X, Ye X, Cheng W, Chen G, Zhu HL, Zhao J, Qian Y. 3D dynamic tracking Aβ plaques in live brains using vinyl-bridged dyes with two-photon excitation/NIR emission and large Stokes shifts. Biosens Bioelectron 2023; 238:115563. [PMID: 37595474 DOI: 10.1016/j.bios.2023.115563] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/21/2023] [Accepted: 08/01/2023] [Indexed: 08/20/2023]
Abstract
Real-time studies of biomarkers for neurological disorders present significant opportunities for diagnosing and treating related diseases, and fluorescent probes offer a promising approach to brain imaging. However, intracerebral fluorescence imaging is often limited by blood-brain barrier permeability and penetration depth. Moreover, only very few probes have rapid intracerebral metabolic properties, which are critical for in vivo imaging. Here, we developed a novel class of fluorescent dyes with two-photon excitation and near-infrared (NIR) emission (920/705 nm). The representative WAPP-4 probe exhibits a large Stokes shift (Δλ = 324 nm in ethanol) and excellent blood-brain barrier permeability. Notably, using WAPP-4, we achieved in vivo 3D dynamic imaging of Aβ plaques in the brains of living mice with Alzheimer's disease (AD). In addition, super-resolution imaging showed that WAPP-4 could effectively characterize the distribution and shape of Aβ plaques in isolated brain slices. This study demonstrates that newly developed fluorescent dyes with large Stokes shifts and blood-brain barrier permeability enable real-time imaging of amyloid plaques, which will contribute to the development of other valuable tools for near-infrared imaging and super-resolution imaging in the brain.
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Affiliation(s)
- Xueao Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road 1, Nanjing, 210023, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Xianlin Road 163, Nanjing, 210023, China
| | - Yani Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Xianlin Road 163, Nanjing, 210023, China
| | - Xueting Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Xianlin Road 163, Nanjing, 210023, China
| | - Xiaolian Ye
- State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center, Nanjing University, 12 Xuefu Avenue, Nanjing, 210061, China
| | - Wei Cheng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road 1, Nanjing, 210023, China
| | - Guiquan Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center, Nanjing University, 12 Xuefu Avenue, Nanjing, 210061, China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Xianlin Road 163, Nanjing, 210023, China
| | - Jing Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Yong Qian
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road 1, Nanjing, 210023, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Xianlin Road 163, Nanjing, 210023, China.
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16
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Chen X, Wang W, Xiao D, Xia SH, Zhang Y. Non-adiabatic dynamics simulations of the S 1 excited-state relaxation of diacetyl phenylenediamine. Phys Chem Chem Phys 2023. [PMID: 37427748 DOI: 10.1039/d3cp01826a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The small molecule built around the benzene ring, diacetyl phenylenediamine (DAPA), has attracted much attention due to its synthesis accessibility, large Stokes shift, etc. However, its meta structure m-DAPA does not fluoresce. In a previous investigation, it was found that such a property is due to the fact that it undergoes an energy-reasonable double proton transfer conical intersection during the deactivation of the S1 excited-state, then returns to the ground state by a nonradiative relaxation process eventually. However, our static electronic structure calculations and non-adiabatic dynamics analysis results indicate that only one reasonable non-adiabatic deactivation channel exists: after being excited to the S1 state, m-DAPA undergoes an ultrafast and barrierless ESIPT process and reaches the single-proton-transfer conical intersection. Subsequently, the system either returns to the keto-form S0 state minimum with proton reversion or returns to the single-proton-transfer S0 minimum after undergoing a slight twist of the acetyl group. The dynamics results show that the S1 excited-state lifetime of m-DAPA is 139 fs. In other words, we propose an efficient single-proton-transfer non-adiabatic deactivation channel of m-DAPA that is different from previous work, which can provide important mechanistic information of similar fluorescent materials.
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Affiliation(s)
- Xiaohang Chen
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Wei Wang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Dongyi Xiao
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Shu-Hua Xia
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Yan Zhang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
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17
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Li X, Zhang T, Diao X, Li Y, Su Y, Yang J, Shang Z, Liu S, Zhou J, Li G, Chi H. Mitochondria-Targeted Fluorescent Nanoparticles with Large Stokes Shift for Long-Term BioImaging. Molecules 2023; 28:molecules28093962. [PMID: 37175369 PMCID: PMC10179964 DOI: 10.3390/molecules28093962] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 05/15/2023] Open
Abstract
Mitochondria (MITO) play a significant role in various physiological processes and are a key organelle associated with different human diseases including cancer, diabetes mellitus, atherosclerosis, Alzheimer's disease, etc. Thus, detecting the activity of MITO in real time is becoming more and more important. Herein, a novel class of amphiphilic aggregation-induced emission (AIE) active probe fluorescence (AC-QC nanoparticles) based on a quinoxalinone scaffold was developed for imaging MITO. AC-QC nanoparticles possess an excellent ability to monitor MITO in real-time. This probe demonstrated the following advantages: (1) lower cytotoxicity; (2) superior photostability; and (3) good performance in long-term imaging in vitro. Each result of these indicates that self-assembled AC-QC nanoparticles can be used as effective and promising MITO-targeted fluorescent probes.
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Affiliation(s)
- Xiao Li
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154000, China
| | - Tao Zhang
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154000, China
| | - Xuebo Diao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin 150081, China
| | - Yu Li
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yue Su
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jiapei Yang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zibo Shang
- Faculty of Science, University of British Columbia, 2329 West Mall, Vancouver, BC V6T 1Z4, Canada
| | - Shuai Liu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154000, China
| | - Jia Zhou
- Department of Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai 200233, China
| | - Guolin Li
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi 154000, China
- Department of Stomatology, Shanghai Eighth Peoples Hospital, 8 Caobao Road, Shanghai 200000, China
| | - Huirong Chi
- Department of Stomatology, Shanghai Eighth Peoples Hospital, 8 Caobao Road, Shanghai 200000, China
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18
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Liu YZ, Zhang H, Zhou DH, Liu YH, Ran XY, Xiang FF, Zhang LN, Chen YJ, Yu XQ, Li K. Migration from Lysosome to Nucleus: Monitoring Lysosomal Alkalization-Related Biological Processes with an Aminofluorene-Based Probe. Anal Chem 2023; 95:7294-7302. [PMID: 37104743 DOI: 10.1021/acs.analchem.3c00314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Aberrant lysosomal alkalization is associated with various biological processes, such as oxidative stress, cell apoptosis, ferroptosis, etc. Herein, we developed a novel aminofluorene-based fluorescence probe named FAN to monitor the lysosomal alkalization-related biological processes by its migration from lysosome to nucleus. FAN possessed NIR emission, large Stokes shift, high pH stability, and high photostability, making it suitable for real-time and long-term bioimaging. As a lysosomotropic molecule, FAN can accumulate in lysosomes first and then migrate to the nucleus by right of its binding capability to DNA after lysosomal alkalization. In this manner, FAN was successfully used to monitor these physiological processes which triggered lysosomal alkalization in living cells, including oxidative stress, cell apoptosis, and ferroptosis. More importantly, at higher concentrations, FAN could also serve as a stable nucleus dye for the fluorescence imaging of the nucleus in living cells and tissues. This novel multifunctional fluorescence probe shows great promise for application in lysosomal alkalization-related visual research and nucleus imaging.
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Affiliation(s)
- Yan-Zhao Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Hong Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Ding-Heng Zhou
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Xiao-Yun Ran
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Fei-Fan Xiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Li-Na Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Yu-Jin Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
- Department of Chemistry, Xihua University, Chengdu 610039, P. R. China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P.R. China
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19
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A general highly efficient synthesis of biocompatible rhodamine dyes and probes for live-cell multicolor nanoscopy. Nat Commun 2023; 14:1306. [PMID: 36894547 PMCID: PMC9998615 DOI: 10.1038/s41467-023-36913-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023] Open
Abstract
The development of live-cell fluorescence nanoscopy is powered by the availability of suitable fluorescent probes. Rhodamines are among the best fluorophores for labeling intracellular structures. Isomeric tuning is a powerful method for optimizing the biocompatibility of rhodamine-containing probes without affecting their spectral properties. An efficient synthesis pathway for 4-carboxyrhodamines is still lacking. We present a facile protecting-group-free 4-carboxyrhodamines' synthesis based on the nucleophilic addition of lithium dicarboxybenzenide to the corresponding xanthone. This approach drastically reduces the number of synthesis steps, expands the achievable structural diversity, increases overall yields and permits gram-scale synthesis of the dyes. We synthesize a wide range of symmetrical and unsymmetrical 4-carboxyrhodamines covering the whole visible spectrum and target them to multiple structures in living cells - microtubules, DNA, actin, mitochondria, lysosomes, Halo-tagged and SNAP-tagged proteins. The enhanced permeability fluorescent probes operate at submicromolar concentrations, allowing high-contrast STED and confocal microscopy of living cells and tissues.
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20
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Efforts toward PET-Activatable Red-Shifted Silicon Rhodamines and Silicon Pyronine Dyes. Pharmaceuticals (Basel) 2023; 16:ph16030401. [PMID: 36986500 PMCID: PMC10053042 DOI: 10.3390/ph16030401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 03/09/2023] Open
Abstract
Tracers for bimodal optical imaging and positron emission tomography unite multiple advantages in a single molecule. Their tumor-specific uptake can be visualized after their PET activation by radiofluorination via PET/CT or PET/MRI allowing for staging or therapy planning, while their non-radioactive moiety additionally facilitates the visualization of malignant tissue during intraoperative fluorescence-guided surgery or in histological assessments. The silicon-bridged xanthene core offers the opportunity for radiofluorination with SiFA isotope exchange to obtain a small-molecule, PET-activatable NIR dye that can be linked to different target vectors. Herein, we demonstrate for the first time the PET-activation of a fluorinated silicon pyronine, belonging to a class of low-molecular-weight fluorescence dyes with a large Stokes shift (up to 129 nm) and solvent-dependent NIR dye properties, with a successful radiochemical conversion of 70%. The non-fluorinated pyronine precursor is easily accessible by a three-step sequence from commercially starting material with a 12% overall yield. Moreover, a library of seven unusually functionalized (by approximately 15 nm), red-shifted silicon rhodamines were synthesized in three- to four-step sequences and the optical properties of the novel dyes were characterized. It was also shown that the synthesized silicon rhodamine dyes can be easily conjugated by amide bond formation or ‘click-reaction’ approaches.
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21
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Zhai R, Fang B, Lai Y, Peng B, Bai H, Liu X, Li L, Huang W. Small-molecule fluorogenic probes for mitochondrial nanoscale imaging. Chem Soc Rev 2023; 52:942-972. [PMID: 36514947 DOI: 10.1039/d2cs00562j] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mitochondria are inextricably linked to the development of diseases and cell metabolism disorders. Super-resolution imaging (SRI) is crucial in enhancing our understanding of mitochondrial ultrafine structures and functions. In addition to high-precision instruments, super-resolution microscopy relies heavily on fluorescent materials with unique photophysical properties. Small-molecule fluorogenic probes (SMFPs) have excellent properties that make them ideal for mitochondrial SRI. This paper summarizes recent advances in the field of SMFPs, with a focus on the chemical and spectroscopic properties required for mitochondrial SRI. Finally, we discuss future challenges in this field, including the design principles of SMFPs and nanoscopic techniques.
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Affiliation(s)
- Rongxiu Zhai
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China.
| | - Bin Fang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China. .,School of Materials Science and Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Yaqi Lai
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China.
| | - Bo Peng
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China.
| | - Hua Bai
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China.
| | - Xiaowang Liu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China.
| | - Lin Li
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China. .,The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, Fujian, China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China. .,The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, Fujian, China
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22
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Likhotkin I, Lincoln R, Bossi ML, Butkevich AN, Hell SW. Photoactivatable Large Stokes Shift Fluorophores for Multicolor Nanoscopy. J Am Chem Soc 2023; 145:1530-1534. [PMID: 36626161 PMCID: PMC9880998 DOI: 10.1021/jacs.2c12567] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We designed caging-group-free photoactivatable live-cell permeant dyes with red fluorescence emission and ∼100 nm Stokes shifts based on a 1-vinyl-10-silaxanthone imine core structure. The proposed fluorophores undergo byproduct-free one- and two-photon activation, are suitable for multicolor fluorescence microscopy in fixed and living cells, and are compatible with super-resolution techniques such as STED (stimulated emission depletion) and PALM (photoactivated localization microscopy). Use of photoactivatable labels for strain-promoted tetrazine ligation and self-labeling protein tags (HaloTag, SNAP-tag), and duplexing of an imaging channel with another large Stokes shift dye have been demonstrated.
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Affiliation(s)
- Ilya Likhotkin
- Department
of Optical Nanoscopy, Max Planck Institute
for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Richard Lincoln
- Department
of Optical Nanoscopy, Max Planck Institute
for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany
| | - Mariano L. Bossi
- Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, 37077 Göttingen, Germany
| | - Alexey N. Butkevich
- Department
of Optical Nanoscopy, Max Planck Institute
for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany,Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, 37077 Göttingen, Germany,
| | - Stefan W. Hell
- Department
of Optical Nanoscopy, Max Planck Institute
for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany,Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, 37077 Göttingen, Germany,
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23
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Xanthene dyes for cancer imaging and treatment: A material odyssey. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Chen H, Liu L, Qian K, Liu H, Wang Z, Gao F, Qu C, Dai W, Lin D, Chen K, Liu H, Cheng Z. Bioinspired large Stokes shift small molecular dyes for biomedical fluorescence imaging. SCIENCE ADVANCES 2022; 8:eabo3289. [PMID: 35960804 PMCID: PMC9374339 DOI: 10.1126/sciadv.abo3289] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Long Stokes shift dyes that minimize cross-talk between the excitation source and fluorescent emission to improve the signal-to-background ratio are highly desired for fluorescence imaging. However, simple small molecular dyes with large Stokes shift (more than 120 nanometers) and near-infrared (NIR) emissions have been rarely reported so far. Here, inspired by the chromophore chemical structure of fluorescent proteins, we designed and synthesized a series of styrene oxazolone dyes (SODs) with simple synthetic methods, which show NIR emissions (>650 nanometers) with long Stokes shift (ranged from 136 to 198 nanometers) and small molecular weight (<450 daltons). The most promising SOD9 shows rapid renal excretion and blood-brain barrier passing properties. After functioning with the mitochondrial-targeted triphenylphosphonium (TPP) group, the resulting SOD9-TPP can be engineered for head-neck tumor imaging, fluorescence image-guided surgery, brain neuroimaging, and on-site pathologic analysis. In summary, our findings add an essential small molecular dye category to the classical dyes.
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Affiliation(s)
- Hao Chen
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Lingjun Liu
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Kun Qian
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hailong Liu
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhiming Wang
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Feng Gao
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Chunrong Qu
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wenhao Dai
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Daizong Lin
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Kaixian Chen
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Hong Liu
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
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25
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Lincoln R, Bossi ML, Remmel M, D'Este E, Butkevich AN, Hell SW. A general design of caging-group-free photoactivatable fluorophores for live-cell nanoscopy. Nat Chem 2022; 14:1013-1020. [PMID: 35864152 PMCID: PMC9417988 DOI: 10.1038/s41557-022-00995-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 06/09/2022] [Indexed: 11/17/2022]
Abstract
The controlled switching of fluorophores between non-fluorescent and fluorescent states is central to every super-resolution fluorescence microscopy (nanoscopy) technique, and the exploration of radically new switching mechanisms remains critical to boosting the performance of established, as well as emerging super-resolution methods. Photoactivatable dyes offer substantial improvements to many of these techniques, but often rely on photolabile protecting groups that limit their applications. Here we describe a general method to transform 3,6-diaminoxanthones into caging-group-free photoactivatable fluorophores. These photoactivatable xanthones (PaX) assemble rapidly and cleanly into highly fluorescent, photo- and chemically stable pyronine dyes upon irradiation with light. The strategy is extendable to carbon- and silicon-bridged xanthone analogues, yielding a family of photoactivatable labels spanning much of the visible spectrum. Our results demonstrate the versatility and utility of PaX dyes in fixed and live-cell labelling for conventional microscopy, as well as the coordinate-stochastic and deterministic nanoscopies STED, PALM and MINFLUX. ![]()
The design of photoactivatable fluorophores—which are required for some super-resolution fluorescence microscopy methods—usually relies on light-sensitive protecting groups imparting lipophilicity and generating reactive by-products. Now, it has been shown that by exploiting a unique intramolecular photocyclization, bright and highly photostable fluorophores can be rapidly generated in situ from appropriately substituted 1-alkenyl-3,6-diaminoxanthone precursors.
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Affiliation(s)
- Richard Lincoln
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Mariano L Bossi
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Michael Remmel
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Elisa D'Este
- Optical Microscopy Facility, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Alexey N Butkevich
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Heidelberg, Germany.
| | - Stefan W Hell
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Heidelberg, Germany. .,Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.
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26
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Al Kelabi D, Dey A, Alimi LO, Piwoński H, Habuchi S, Khashab NM. Photostable polymorphic organic cages for targeted live cell imaging. Chem Sci 2022; 13:7341-7346. [PMID: 35799823 PMCID: PMC9214840 DOI: 10.1039/d2sc00836j] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/01/2022] [Indexed: 11/21/2022] Open
Abstract
Fluorescent microscopy is a powerful tool for studying the cellular dynamics of biological systems. Small-molecule organic fluorophores are the most commonly used for live cell imaging; however, they often suffer from low solubility, limited photostability and variable targetability. Herein, we demonstrate that a tautomeric organic cage, OC1, has high cell permeability, photostability and selectivity towards the mitochondria. We further performed a structure–activity study to investigate the role of the keto–enol tautomerization, which affords strong and consistent fluorescence in dilute solutions through supramolecular self-assembly. Significantly, OC1 can passively diffuse through the cell membrane directly targeting the mitochondria without going through the endosomes or the lysosomes. We envisage that designing highly stable and biocompatible self-assembled fluorophores that can passively diffuse through the cell membrane while selectively targeting specific organelles will push the boundaries of fluorescent microscopy to visualize intricate cellular processes at the single molecule level in live samples. In this article, we demonstrate the relatively unexplored potential of organic cages for use in targeted live cell imaging and highlight the importance of inter- and intramolecular interactions to stabilize and improve the performance of fluorophores.![]()
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Affiliation(s)
- Dana Al Kelabi
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Avishek Dey
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Lukman O Alimi
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Hubert Piwoński
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division Thuwal 23955-6900 Saudi Arabia
| | - Satoshi Habuchi
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division Thuwal 23955-6900 Saudi Arabia
| | - Niveen M Khashab
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
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27
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He D, Zhang L, Sun Y. Meso-substituented pyronine: colorful emission and versatile platform for the rational design of fluorescent probes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Bachman JL, Wight CD, Bardo AM, Johnson AM, Pavlich CI, Boley AJ, Wagner HR, Swaminathan J, Iverson BL, Marcotte EM, Anslyn EV. Evaluating the Effect of Dye-Dye Interactions of Xanthene-Based Fluorophores in the Fluorosequencing of Peptides. Bioconjug Chem 2022; 33:1156-1165. [PMID: 35622964 DOI: 10.1021/acs.bioconjchem.2c00103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A peptide sequencing scheme utilizing fluorescence microscopy and Edman degradation to determine the amino acid position in fluorophore-labeled peptides was recently reported, referred to as fluorosequencing. It was observed that multiple fluorophores covalently linked to a peptide scaffold resulted in a decrease in the anticipated fluorescence output and worsened the single-molecule fluorescence analysis. In this study, we report an improvement in the photophysical properties of fluorophore-labeled peptides by incorporating long and flexible (PEG)10 linkers at the peptide attachment points. Long linkers to the fluorophores were installed using copper-catalyzed azide-alkyne cycloaddition conditions. The photophysical properties of these peptides were analyzed in solution and immobilized on a microscope slide at the single-molecule level under peptide fluorosequencing conditions. Solution-phase fluorescence analysis showed improvements in both quantum yield and fluorescence lifetime with the long linkers. While on the solid support, photometry measurements showed significant increases in fluorescence brightness and 20 to 60% improvements in the ability to determine the amino acid position with fluorosequencing. This spatial distancing strategy demonstrates improvements in the peptide sequencing platform and provides a general approach for improving the photophysical properties in fluorophore-labeled macromolecules.
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Affiliation(s)
- James L Bachman
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Christopher D Wight
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Angela M Bardo
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Amber M Johnson
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Cyprian I Pavlich
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Alexander J Boley
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Holden R Wagner
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jagannath Swaminathan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Brent L Iverson
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Edward M Marcotte
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Eric V Anslyn
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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29
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Frei MS, Koch B, Hiblot J, Johnsson K. Live-Cell Fluorescence Lifetime Multiplexing Using Synthetic Fluorescent Probes. ACS Chem Biol 2022; 17:1321-1327. [PMID: 35584304 PMCID: PMC9207807 DOI: 10.1021/acschembio.2c00041] [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
![]()
Fluorescence lifetime
multiplexing requires fluorescent probes
with distinct fluorescence lifetimes but similar spectral properties.
Even though synthetic probes for many cellular targets are available
for multicolor live-cell fluorescence microscopy, few of them have
been characterized for their use in fluorescence lifetime multiplexing.
Here, we demonstrate that, from a panel of 18 synthetic probes, eight
pairwise combinations are suitable for fluorescence lifetime multiplexing
in living mammalian cell lines. Moreover, combining multiple pairs
in different spectral channels enables us to image four and with the
help of self-labeling protein tags up to eight different biological
targets, effectively doubling the number of observable targets. The
combination of synthetic probes with fluorescence lifetime multiplexing
is thus a powerful approach for live-cell imaging.
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Affiliation(s)
- Michelle S. Frei
- 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
| | - Julien Hiblot
- 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 (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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30
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A synergistic strategy to develop photostable and bright dyes with long Stokes shift for nanoscopy. Nat Commun 2022; 13:2264. [PMID: 35477933 PMCID: PMC9046415 DOI: 10.1038/s41467-022-29547-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 03/11/2022] [Indexed: 11/08/2022] Open
Abstract
The quality and application of super-resolution fluorescence imaging greatly lie in the dyes’ properties, including photostability, brightness, and Stokes shift. Here we report a synergistic strategy to simultaneously improve such properties of regular fluorophores. Introduction of quinoxaline motif with fine-tuned electron density to conventional rhodamines generates new dyes with vibration structure and inhibited twisted-intramolecular-charge-transfer (TICT) formation synchronously, thus increasing the brightness and photostability while enlarging Stokes shift. The new fluorophore YL578 exhibits around twofold greater brightness and Stokes shift than its parental fluorophore, Rhodamine B. Importantly, in Stimulated Emission Depletion (STED) microscopy, YL578 derived probe possesses a superior photostability and thus renders threefold more frames than carbopyronine based probes (CPY-Halo and 580CP-Halo), known as photostable fluorophores for STED imaging. Furthermore, the strategy is well generalized to offer a new class of bright and photostable fluorescent probes with long Stokes shift (up to 136 nm) for bioimaging and biosensing. Super-resolution microscopy is a powerful tool for cellular studies but requires bright and stable fluorescent probes. Here, the authors report on a strategy to introduce quinoxaline motifs to conventional probes to make them brighter, more photostable, larger Stokes shift, and demonstrate the probes for biosensing applications.
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31
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Loginov SV, Fermie J, Fokkema J, Agronskaia AV, De Heus C, Blab GA, Klumperman J, Gerritsen HC, Liv N. Correlative Organelle Microscopy: Fluorescence Guided Volume Electron Microscopy of Intracellular Processes. Front Cell Dev Biol 2022; 10:829545. [PMID: 35478966 PMCID: PMC9035751 DOI: 10.3389/fcell.2022.829545] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/04/2022] [Indexed: 01/19/2023] Open
Abstract
Intracellular processes depend on a strict spatial and temporal organization of proteins and organelles. Therefore, directly linking molecular to nanoscale ultrastructural information is crucial in understanding cellular physiology. Volume or three-dimensional (3D) correlative light and electron microscopy (volume-CLEM) holds unique potential to explore cellular physiology at high-resolution ultrastructural detail across cell volumes. However, the application of volume-CLEM is hampered by limitations in throughput and 3D correlation efficiency. In order to address these limitations, we describe a novel pipeline for volume-CLEM that provides high-precision (<100 nm) registration between 3D fluorescence microscopy (FM) and 3D electron microscopy (EM) datasets with significantly increased throughput. Using multi-modal fiducial nanoparticles that remain fluorescent in epoxy resins and a 3D confocal fluorescence microscope integrated into a Focused Ion Beam Scanning Electron Microscope (FIB.SEM), our approach uses FM to target extremely small volumes of even single organelles for imaging in volume EM and obviates the need for post-correlation of big 3D datasets. We extend our targeted volume-CLEM approach to include live-cell imaging, adding information on the motility of intracellular membranes selected for volume-CLEM. We demonstrate the power of our approach by targeted imaging of rare and transient contact sites between the endoplasmic reticulum (ER) and lysosomes within hours rather than days. Our data suggest that extensive ER-lysosome and mitochondria-lysosome interactions restrict lysosome motility, highlighting the unique capabilities of our integrated CLEM pipeline for linking molecular dynamic data to high-resolution ultrastructural detail in 3D.
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Affiliation(s)
- Sergey V. Loginov
- Molecular Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
| | - Job Fermie
- Molecular Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
- Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Jantina Fokkema
- Molecular Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
| | - Alexandra V. Agronskaia
- Molecular Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
| | - Cilia De Heus
- Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Gerhard A. Blab
- Molecular Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
| | - Judith Klumperman
- Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Hans C. Gerritsen
- Molecular Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands
| | - Nalan Liv
- Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
- *Correspondence: Nalan Liv,
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32
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Medeiros NG, Braga CA, Câmara VS, Duarte RC, Rodembusch FS. Near‐infrared fluorophores based on heptamethine cyanine dyes: from their synthesis and photophysical properties to recent optical sensing and bioimaging applications. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Natália G Medeiros
- Universidade Federal do Rio Grande do Sul Organic Chemistry Av. Bento Goncalves 9500. Bairro Agronomia 91501-970 Porto Alegre BRAZIL
| | - Cláudia A. Braga
- Universidade Federal do Rio Grande do Sul Organic Chemistry Av. Bento Goncalves 9500. Bairro Agronomia 91501-970 Porto Alegre BRAZIL
| | - Viktor S Câmara
- Universidade Federal do Rio Grande do Sul Organic Chemistry Av. Bento Goncalves 9500. Bairro Agronomia 91501-970 Porto Alegre BRAZIL
| | - Rodrigo C Duarte
- Universidade Federal do Rio Grande do Sul Organic Chemistry Av. Bento Goncalves 9500. Bairro Agronomia 91501-970 Porto Alegre BRAZIL
| | - Fabiano Severo Rodembusch
- Universidade Federal do Rio Grande do Sul Organic Chemistry Av. Bento Gonçalves 9500Bairro Agronomia 91501-970 Porto Alegre BRAZIL
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Park H, Niu G, Wu C, Park C, Liu H, Park H, Kwok RTK, Zhang J, He B, Tang BZ. Precise and long-term tracking of mitochondria in neurons using a bioconjugatable and photostable AIE luminogen. Chem Sci 2022; 13:2965-2970. [PMID: 35382465 PMCID: PMC8905947 DOI: 10.1039/d1sc06336g] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/03/2022] [Indexed: 12/22/2022] Open
Abstract
Tracking mitochondrial movement in neurons is an attractive but challenging research field as dysregulation of mitochondrial motion is associated with multiple neurological diseases. To realize accurate and long-term tracking of mitochondria in neurons, we elaborately designed a novel aggregation-induced emission (AIE)-active luminogen, TPAP-C5-yne, where we selected a cationic pyridinium moiety to target mitochondria and employed an activated alkyne terminus to achieve long-term tracking through bioconjugation with amines on mitochondria. For the first time, we successfully achieved the accurate analysis of the motion of a single mitochondrion in live primary hippocampal neurons and the long-term tracking of mitochondria for up to a week in live neurons. Therefore, this new AIEgen can be used as a potential tool to study the transport of mitochondria in live neurons.
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Affiliation(s)
- Hojeong Park
- Department of Chemistry, Institute for Advanced Study, State Key Laboratory of Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Guangle Niu
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 China
| | - Chao Wu
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, HKUST Clear Water Bay Kowloon Hong Kong China
| | - Chungwon Park
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, HKUST Clear Water Bay Kowloon Hong Kong China
| | - Haixiang Liu
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Hyokeun Park
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, HKUST Clear Water Bay Kowloon Hong Kong China
- Department of Physics, HKUST Clear Water Bay Kowloon Hong Kong China
- State Key Laboratory of Molecular Neuroscience, HKUST Clear Water Bay Kowloon Hong Kong China
| | - Ryan T K Kwok
- Department of Chemistry, Institute for Advanced Study, State Key Laboratory of Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jing Zhang
- Department of Chemistry, Institute for Advanced Study, State Key Laboratory of Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Benzhao He
- Department of Chemistry, Institute for Advanced Study, State Key Laboratory of Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- Center for Advanced Materials Research, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai Zhuhai 519085 China
| | - Ben Zhong Tang
- Department of Chemistry, Institute for Advanced Study, State Key Laboratory of Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong 2001 Longxiang Boulevard, Longgang District Shenzhen City Guangdong 518172 China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
- Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology Guangzhou 510640 China
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Liu Q, Liu C, Cai S, He S, Zhao L, Zeng X, Gong J. A highly sensitive sensor for colorimetric detection of palladium(II) in lysosomes and its applications. Dalton Trans 2022; 51:3116-3121. [PMID: 35137740 DOI: 10.1039/d1dt03900h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Considering the scarcity of palladium ion probes with subcellular organelle targeting, especially probes with near-infrared (NIR) emission wavelength fluorophores, our group has been working to overcome this problem and looking forward to providing potential practical tools for exploring the toxicity of palladium ions at the subcellular level. In this paper, a novel colorimetric and NIR fluorescent probe, BHCy-Pd, for the specific detection of palladium ions (Pd2+) in lysosomes via an internal charge-transfer (ICT) mechanism was designed and synthesized. As expected, BHCy-Pd exhibited a rapid, selective, and sensitive response for palladium with an ultralow limit of detection at 5.9 nM, accompanied by a distinct color change from purple to blue. Furthermore, BHCy-Pd can be made into a simple test strip for rapid and easy detection of Pd2+ in practical applications. Importantly, BHCy-Pd is capable of specific distribution in lysosomes, and thus can detect Pd2+ in real-time, thereby providing a potential tool for studying the cytotoxicity of Pd2+ ions at the subcellular level.
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Affiliation(s)
- Qiuchen Liu
- Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China. .,School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Chang Liu
- Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China.
| | - Songtao Cai
- Center for Biomedical Photonics & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen 518060, P. R. China
| | - Song He
- Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China.
| | - Liancheng Zhao
- Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China. .,School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Xianshun Zeng
- Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China. .,School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Jin Gong
- School of Pharmacy, Weifang Medical University, Weifang, 261053, P. R. China. .,Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China.
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Xu R, Dang D, Wang Z, Zhou Y, Xu Y, Zhao Y, Wang X, Yang Z, Meng L. Facilely prepared aggregation-induced emission (AIE) nanocrystals with deep-red emission for super-resolution imaging. Chem Sci 2022; 13:1270-1280. [PMID: 35222910 PMCID: PMC8809421 DOI: 10.1039/d1sc04254h] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 12/11/2021] [Indexed: 12/20/2022] Open
Abstract
Organic nanocrystals (NCs) with high brightness are highly desirable for biological imaging. However, the preparation of NCs by a facile and fast method is still challenging. Herein, an aggregation-induced emission (AIE) luminogen of 4,4'-(5,6-difluorobenzo[c][1,2,5]thiadiazole-4,7-diyl)bis(N,N-bis(4-methoxyphenyl)aniline) (DTPA-BT-F) in the deep-red region is designed with intensive crystalline features to obtain NCs by kinetically controlled nanoprecipitation. The prepared AIE NCs with high brightness and good photo-stability are then applied in super-resolution imaging via stimulated emission depletion (STED) nanoscopy. As observed, the nanostructures in lysosomes of both fixed and live cells are well visualized with superior lateral resolutions under STED nanoscopy (full width at half maximum values, 107 and 108 nm) in contrast to that in confocal imaging (548 and 740 nm). More importantly, dynamic monitoring and long-term tracking of lysosomal movements in live HeLa cells, such as lysosomal contact, can also be carried out by using DTPA-BT-F NCs at a superior resolution. To the best of our knowledge, this is the first case of AIE NCs prepared by nanoprecipitation for STED nanoscopy, thus providing a new strategy to develop high performance imaging agents for super-resolution imaging.
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Affiliation(s)
- Ruohan Xu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Dongfeng Dang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Zhi Wang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Yu Zhou
- School of Physics, Xi'an Jiao Tong University Xi'an 710049 P. R. China
- Instrumental Analysis Center, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Yanzi Xu
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Yizhen Zhao
- School of Physics, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Xiaochi Wang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Zhiwei Yang
- School of Physics, Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Lingjie Meng
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiao Tong University Xi'an 710049 P. R. China
- Instrumental Analysis Center, Xi'an Jiao Tong University Xi'an 710049 P. R. China
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Zhang H, Shi L, Li K, Liu X, Won M, Liu Y, Choe Y, Liu X, Liu Y, Chen S, Yu K, Kim JS, Yu X. Discovery of an Ultra‐rapid and Sensitive Lysosomal Fluorescence Lipophagy Process. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116439] [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)
- Hong Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Lei Shi
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Xin Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Miae Won
- Department of Chemistry Korea University Seoul 02841 Korea
| | - Yan‐Zhao Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Youmi Choe
- Department of Chemistry Korea University Seoul 02841 Korea
| | - Xin‐Yao Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Yan‐Hong Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Shan‐Yong Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Kang‐Kang Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
| | - Jong Seung Kim
- Department of Chemistry Korea University Seoul 02841 Korea
| | - Xiao‐Qi Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Chengdu 61064 P. R. China
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38
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Kim JS, Zhang H, Li K, Shi L, Liu X, Won M, Liu YZ, Choe Y, Liu XY, Liu YH, Chen SY, Yu KK, Yu XQ. Discovery of an Ultra-rapid and Sensitive Lysosomal Fluorescence Lipophagy Process. Angew Chem Int Ed Engl 2021; 61:e202116439. [PMID: 34964238 DOI: 10.1002/anie.202116439] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Indexed: 11/11/2022]
Abstract
Non-invasive dynamic tracking of lysosomes and their interactions with other organelles is important for the study of lysosomal function and related diseases. However, many fluorescent dyes developed so far to target lysosomes cannot be used to monitor these processes due to the high concentrations required for imaging, long cell penetration times, and non-ideal photostability. In this regard, we synthesized three lysosomal targeting probes with large Stokes shifts, good stability, and high brightness. The Q-P-ARh , developed by us for the first time, can stain lysosomes at ultra-low concentrations (1.0 nM) without affecting the physiological functions of the lysosomes. More importantly, its excellent anti-interference ability and ultrafast lysosomal staining ability (within 1.0 min) clearly monitored the entire dynamic process of lipophagy. Ultimately, this method can greatly contribute to the study of autophagy pathways. This novel fluorescence platform shows great promise for the development of biological probes for application in pathological environments.
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Affiliation(s)
- Jong Seung Kim
- Korea University, Department of Chemistry, Anamdong, 02841, Seoul, KOREA, REPUBLIC OF
| | - Hong Zhang
- Sichuan University, College of Chemistry, CHINA
| | - Kun Li
- Sichuan University, College of Chemistry, CHINA
| | - Lei Shi
- Sichuan University, College of Chemistry, CHINA
| | - Xin Liu
- Sichuan University, College of Chemistry, CHINA
| | - Miae Won
- Korea University, Department of Chemistry, 337, Asan Science Build. 145, Anam-ro Seongbuk-gu, Seoul, 02841, Seoul, KOREA, REPUBLIC OF
| | | | - Youmi Choe
- Korea University - Seoul Campus: Korea University, Department of Chemistry, CHINA
| | - Xin-Yao Liu
- Sichuan University, College of Chemistry, CHINA
| | | | | | | | - Xiao-Qi Yu
- Sichuan University, College of Chemistry, CHINA
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39
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Olasunkanmi LO, Govender PP. Theoretical probe of absorption and fluorescence emission characteristics of highly luminescent ReL(CO)3X (L = 12H-indazolo[5,6-f][1,10]phenanthroline and X = F, Cl, Br, I): a DFT/TD-DFT study. Mol Phys 2021. [DOI: 10.1080/00268976.2021.2018062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Lukman O. Olasunkanmi
- Department of Chemical Sciences, University of Johannesburg Johannesburg, South Africa
- Department of Chemistry, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Penny P. Govender
- Department of Chemical Sciences, University of Johannesburg Johannesburg, South Africa
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40
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Zhang X, Ren T, Yang F, Yuan L. Rational design of far red to near-infrared rhodamine analogues with huge Stokes shifts for single-laser excitation multicolor imaging. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.06.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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41
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Santos EM, Sheng W, Esmatpour Salmani R, Tahmasebi Nick S, Ghanbarpour A, Gholami H, Vasileiou C, Geiger JH, Borhan B. Design of Large Stokes Shift Fluorescent Proteins Based on Excited State Proton Transfer of an Engineered Photobase. J Am Chem Soc 2021; 143:15091-15102. [PMID: 34516091 DOI: 10.1021/jacs.1c05039] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The incredible potential for fluorescent proteins to revolutionize biology has inspired the development of a variety of design strategies to address an equally broad range of photophysical characteristics, depending on potential applications. Of these, fluorescent proteins that simultaneously exhibit high quantum yield, red-shifted emission, and wide separation between excitation and emission wavelengths (Large Stokes Shift, LSS) are rare. The pursuit of LSS systems has led to the formation of a complex, obtained from the marriage of a rationally engineered protein (human cellular retinol binding protein II, hCRBPII) and different fluorogenic molecules, capable of supporting photobase activity. The large increase in basicity upon photoexcitation leads to protonation of the fluorophore in the excited state, dramatically red-shifting its emission, leading to an LSS protein/fluorophore complex. Essential for selective photobase activity is the intimate involvement of the target protein structure and sequence that enables Excited State Proton Transfer (ESPT). The potential power and usefulness of the strategy was demonstrated in live cell imaging of human cell lines.
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Affiliation(s)
- Elizabeth M Santos
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Wei Sheng
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | | | - Setare Tahmasebi Nick
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Alireza Ghanbarpour
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Hadi Gholami
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Chrysoula Vasileiou
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - James H Geiger
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Babak Borhan
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
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42
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Relief of excited-state antiaromaticity enables the smallest red emitter. Nat Commun 2021; 12:5409. [PMID: 34518551 PMCID: PMC8438045 DOI: 10.1038/s41467-021-25677-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/18/2021] [Indexed: 11/08/2022] Open
Abstract
It is commonly accepted that a large π-conjugated system is necessary to realize low-energy electronic transitions. Contrary to this prevailing notion, we present a new class of light-emitters utilizing a simple benzene core. Among different isomeric forms of diacetylphenylenediamine (DAPA), o- and p-DAPA are fluorescent, whereas m-DAPA is not. Remarkably, p-DAPA is the lightest (FW = 192) molecule displaying red emission. A systematic modification of the DAPA system allows the construction of a library of emitters covering the entire visible color spectrum. Theoretical analysis shows that their large Stokes shifts originate from the relief of excited-state antiaromaticity, rather than the typically assumed intramolecular charge transfer or proton transfer. A delicate interplay of the excited-state antiaromaticity and hydrogen bonding defines the photophysics of this new class of single benzene fluorophores. The formulated molecular design rules suggest that an extended π-conjugation is no longer a prerequisite for a long-wavelength light emission.
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Kolygina DV, Siek M, Borkowska M, Ahumada G, Barski P, Witt D, Jee AY, Miao H, Ahumada JC, Granick S, Kandere-Grzybowska K, Grzybowski BA. Mixed-Charge Nanocarriers Allow for Selective Targeting of Mitochondria by Otherwise Nonselective Dyes. ACS NANO 2021; 15:11470-11490. [PMID: 34142807 DOI: 10.1021/acsnano.1c01232] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Targeted delivery of molecular cargos to specific organelles is of paramount importance for developing precise and effective therapeutics and imaging probes. This work describes a disulfide-based delivery method in which mixed-charged nanoparticles traveling through the endolysosomal tract deliver noncovalently bound dye molecules selectively into mitochondria. This system comprises three elements: (1) The nanoparticles deliver their payloads by a kiss-and-go mechanism - that is, they drop off their dye cargos proximate to mitochondria but do not localize therein; (2) the dye molecules are by themselves nonspecific to any cellular structures but become so with the help of mixed-charge nanocarriers; and (3) the dye is engineered in such a way as to remain in mitochondria for a long time, up to days, allowing for observing dynamic remodeling of mitochondrial networks and long-term tracking of mitochondria even in dividing cells. The selectivity of delivery and long-lasting staining derive from the ability to engineer charge-imbalanced, mixed [+/-] on-particle monolayers and from the structural features of the cargo. Regarding the former, the balance of [+] and [-] ligands can be adjusted to limit cytotoxicity and control the number of dye molecules adsorbed onto the particles' surfaces. Regarding the latter, comparative studies with multiple dye derivatives we synthesized rationalize the importance of polar groups, long alkyl chains, and disulfide moieties in the assembly of fluorescent nanoconstructs and long-lasting staining of mitochondria. Overall, this strategy could be useful for delivering hydrophilic and/or anionic small-molecule drugs difficult to target to mitochondria by classical approaches.
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Affiliation(s)
- Diana V Kolygina
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Marta Siek
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Magdalena Borkowska
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Guillermo Ahumada
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Piotr Barski
- ProChimia Surfaces Sp. z o.o., Al Zwycięstwa 96/98 F8, 81-451 Gdynia, Poland
| | - Dariusz Witt
- ProChimia Surfaces Sp. z o.o., Al Zwycięstwa 96/98 F8, 81-451 Gdynia, Poland
| | - Ah-Young Jee
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Han Miao
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Juan Carlos Ahumada
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Steve Granick
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Kristiana Kandere-Grzybowska
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Bartosz A Grzybowski
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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44
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A rhodamine B-based turn on fluorescent probe for selective recognition of mercury(II) ions. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120285] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Zhao C, Liu Y, Wang W, Wang Z, Lin W. Tracking cell apoptosis based on mitochondria and cell membrane imaging. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Grimm F, Rehman J, Stoldt S, Khan TA, Schlötel JG, Nizamov S, John M, Belov VN, Hell SW. Rhodamines with a Chloronicotinic Acid Fragment for Live Cell Superresolution STED Microscopy*. Chemistry 2021; 27:6070-6076. [PMID: 33496998 PMCID: PMC8048976 DOI: 10.1002/chem.202005134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Indexed: 12/22/2022]
Abstract
Formylation of 2,6-dichloro-5-R-nicotinic acids at C-4 followed by condensation with 3-hydroxy-N,N-dimethylaniline gave analogs of the popular TAMRA fluorescent dye with a 2,6-dichloro-5-R-nicotinic acid residues (R=H, F). The following reaction with thioglycolic acid is selective, involves only one chlorine atom at the carbon between pyridine nitrogen and the carboxylic acid group and affords new rhodamine dyes absorbing at 564/ 573 nm and emitting at 584/ 597 nm (R=H/ F, in aq. PBS). Conjugates of the dyes with "small molecules" provided specific labeling (covalent and non-covalent) of organelles as well as of components of the cytoskeleton in living cells and were combined with fluorescent probes prepared from 610CP and SiR dyes and applied in two-color STED microscopy with a 775 nm STED laser.
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Affiliation(s)
- Florian Grimm
- Abberior GmbHHans Adolf Krebs Weg 137077GöttingenGermany
| | - Jasmin Rehman
- Abberior GmbHHans Adolf Krebs Weg 137077GöttingenGermany
| | - Stefan Stoldt
- Department of NanobiophotonicsMax Planck Institute for Biophysical Chemistry (MPIBPC)Am Fassberg 1137077GöttingenGermany
| | - Taukeer A. Khan
- Department of NanobiophotonicsMax Planck Institute for Biophysical Chemistry (MPIBPC)Am Fassberg 1137077GöttingenGermany
| | - Jan Gero Schlötel
- Abberior-Instruments GmbHHans Adolf Krebs Weg 137077GöttingenGermany
| | - Shamil Nizamov
- Abberior GmbHHans Adolf Krebs Weg 137077GöttingenGermany
| | - Michael John
- Institute of Organic and Biomolecular ChemistryGeorg-August UniversityTammannstr. 237077GöttingenGermany
| | - Vladimir N. Belov
- Department of NanobiophotonicsMax Planck Institute for Biophysical Chemistry (MPIBPC)Am Fassberg 1137077GöttingenGermany
| | - Stefan W. Hell
- Department of NanobiophotonicsMax Planck Institute for Biophysical Chemistry (MPIBPC)Am Fassberg 1137077GöttingenGermany
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A fluorescent alternative copolymer combined energy transfer and charge transfer with large and tunable Pseudo-Stokes shift. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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48
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Zhou B, Guo M, Pan Q, Zhou M, Xu L, Rao Y, Wang K, Yin B, Zhou J, Song J. Rhodium-catalyzed annulation of pyrrole substituted BODIPYs with alkynes to access π-extended polycyclic heteroaromatic molecules and NIR absorption. Org Chem Front 2021. [DOI: 10.1039/d0qo01625j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A series of π-extended BODIPY derivatives fused with an indolizine scaffold were prepared smoothly via rhodium-catalyzed C–H functionalization/annulation. These fluorophores show significantly red-shifted absorption, reaching to the near infrared (NIR) region.
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Wei X, Zhang H, Sun Y, Liu J, Li Z. Engineering a lipid droplet targeting fluorescent probe with a large Stokes shift through ester substituent rotation for in vivo tumor imaging. Analyst 2021; 146:495-501. [DOI: 10.1039/d0an01925a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A lipid droplets targeting fluorescent probe with large Stokes shift (184 nm) for in vivo tumor imaging was achieved by simply appending a 4-substituted ester group on to the classic coumarin.
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Affiliation(s)
- Xing Wei
- College of Chemistry
- Green Catalysis Center
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications
- Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic
- Zhengzhou University
| | - Hongxing Zhang
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- China
| | - Yuanqiang Sun
- College of Chemistry
- Green Catalysis Center
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications
- Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic
- Zhengzhou University
| | - Jing Liu
- School of Chemistry and Chemical Engineering
- Shanxi University
- Taiyuan 030006
- China
| | - Zhaohui Li
- College of Chemistry
- Green Catalysis Center
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications
- Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic
- Zhengzhou University
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Hassan SI, Haque A, Jeilani YA, Ilmi R, Faizi MSH, Khan I, Mushtaque M. Thioxanthone-based organic probe with aggregation enhanced emission and exceptional mineral acids sensing abilities. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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