1
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Zhao Z, Rudman NA, Dmochowski IJ. A Site-Specific Cross-Linker for Visible-Light Control of Proteins. ACS OMEGA 2024; 9:29331-29338. [PMID: 39005769 PMCID: PMC11238208 DOI: 10.1021/acsomega.4c00968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/05/2024] [Accepted: 03/13/2024] [Indexed: 07/16/2024]
Abstract
There is a need for photochemical tools that allow precise control of protein structure and function with visible light. We focus here on the s-tetrazine moiety, which can be installed at a specific protein site via the reaction between dichlorotetrazine and two adjacent sulfhydryl groups. Tetrazine's compact size enables structural mimicry of native amino acid linkages, such as an intramolecular salt bridge or disulfide bond. In this study, we investigated tetrazine installation in three different proteins, where it was confirmed that the cross-linking reaction is highly efficient in aqueous conditions and site-specific when two cysteines are located proximally: the S-S distance was 4-10 Å. As shown in maltose binding protein, the tetrazine cross-linker can replace an interdomain salt bridge crucial for xenon binding and serve as a visible-light photoswitch to modulate 129Xe NMR contrast. This work highlights the ease of aqueous tetrazine bioconjugation and its applications for protein photoregulation.
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Affiliation(s)
- Zhuangyu Zhao
- Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, Pennsylvania 19104, United States
| | - Nathan A Rudman
- Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, Pennsylvania 19104, United States
| | - Ivan J Dmochowski
- Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, Pennsylvania 19104, United States
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2
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Xue E, Lee ACK, Chow KT, Ng DKP. Promotion and Detection of Cell-Cell Interactions through a Bioorthogonal Approach. J Am Chem Soc 2024; 146:17334-17347. [PMID: 38767615 PMCID: PMC11212048 DOI: 10.1021/jacs.4c04317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
Manipulation of cell-cell interactions via cell surface modification is crucial in tissue engineering and cell-based therapy. To be able to monitor intercellular interactions, it can also provide useful information for understanding how the cells interact and communicate. We report herein a facile bioorthogonal strategy to promote and monitor cell-cell interactions. It involves the use of a maleimide-appended tetrazine-caged boron dipyrromethene (BODIPY)-based fluorescent probe and a maleimide-substituted bicyclo[6.1.0]non-4-yne (BCN) to modify the membrane of macrophage (RAW 264.7) and cancer (HT29, HeLa, and A431) cells, respectively, via maleimide-thiol conjugation. After modification, the two kinds of cells interact strongly through inverse electron-demand Diels-Alder reaction of the surface tetrazine and BCN moieties. The coupling also disrupts the tetrazine quenching unit, restoring the fluorescence emission of the BODIPY core on the cell-cell interface, and promotes phagocytosis. Hence, this approach can promote and facilitate the detection of intercellular interactions, rendering it potentially useful for macrophage-based immunotherapy.
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Affiliation(s)
- Evelyn
Y. Xue
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin,
N.T., Hong Kong, China
| | - Alan Chun Kit Lee
- School
of Life Sciences, The Chinese University
of Hong Kong, Shatin, N.T., Hong Kong, China
- Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Kwan T. Chow
- Department
of Biomedical Sciences, City University
of Hong Kong, Kowloon, Hong Kong, China
| | - Dennis K. P. Ng
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin,
N.T., Hong Kong, China
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3
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Xu X, Zheng J, Liang N, Zhang X, Shabiti S, Wang Z, Yu S, Pan ZY, Li W, Cai L. Bioorthogonal/Ultrasound Activated Oncolytic Pyroptosis Amplifies In Situ Tumor Vaccination for Boosting Antitumor Immunity. ACS NANO 2024; 18:9413-9430. [PMID: 38522084 DOI: 10.1021/acsnano.3c11023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Personalized in situ tumor vaccination is a promising immunotherapeutic modality. Currently, seeking immunogenic cell death (ICD) to generate in situ tumor vaccines is still mired by insufficient immunogenicity and an entrenched immunosuppressive tumor microenvironment (TME). Herein, a series of tetrazine-functionalized ruthenium(II) sonosensitizers have been designed and screened for establishing a bioorthogonal-activated in situ tumor vaccine via oncolytic pyroptosis induction. Based on nanodelivery-augmented bioorthogonal metabolic glycoengineering, the original tumor is selectively remolded to introduce artificial target bicycle [6.1.0] nonyne (BCN) into cell membrane. Through specific bioorthogonal ligation with intratumoral BCN receptors, sonosensitizers can realize precise membrane-anchoring and synchronous click-activation in desired tumor sites. Upon ultrasound (US) irradiation, the activated sonosensitizers can intensively disrupt the cell membrane with dual type I/II reactive oxygen species (ROS) generation for a high-efficiency sonodynamic therapy (SDT). More importantly, the severe membrane damage can eminently evoke oncolytic pyroptosis to maximize tumor immunogenicity and reverse immunosuppressive TME, ultimately eliciting powerful and durable systemic antitumor immunity. The US-triggered pyroptosis is certified to effectively inhibit the growths of primary and distant tumors, and suppress tumor metastasis and recurrence in "cold" tumor models. This bioorthogonal-driven tumor-specific pyroptosis induction strategy has great potential for the development of robust in situ tumor vaccines.
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Affiliation(s)
- Xiaoyu Xu
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Jinling Zheng
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Na Liang
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xu Zhang
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Shayibai Shabiti
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Zixi Wang
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Shiwen Yu
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Zheng-Yin Pan
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China
| | - Wenjun Li
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
| | - Lintao Cai
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Laboratory of Biomedical Imaging Science and System, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen 518055, China
- Sino-Euro Center of Biomedicine and Health, Shenzhen 518024, China
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4
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Liang ZQ, Song DD, Li ZC, Xu SH, Dai GL, Ye CQ, Wang XM, Tao XT. Bright photoactivatable probes based on triphenylethylene for Cu 2+ detection in tap water and tea samples. Food Chem 2024; 434:137439. [PMID: 37729781 DOI: 10.1016/j.foodchem.2023.137439] [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: 04/25/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/22/2023]
Abstract
Photoactivatable probes can switch fluorescence on from a weak or nonemission state to improve the sensitivity of the sensing system. In this work, we successfully constructed three highly emissive photoactivatable probes, 2-DP, 1-2-DP and 2-2-DP, for Cu2+ detection. Under UV irradiation, the photoluminescence quantum yields of 2-DP, 1-2-DP and 2-2-DP display approximately 52.4-, 11.5- and 49.2-fold enhancement, respectively. Cu2+ selectively quenches the bright photoactivated fluorescence, resulting in an approximately 38-fold fluorescence reduction. The highly selective fluorescence response to Cu2+ yields an excellent low detection limit of 5.8 nM. Moreover, the photoactivatable probes were successfully applied for Cu2+ determination in tap water and tea samples with recovery ranges of 95%-105% and 97%-106%, respectively. This work provides a more sensitive and efficient methodology for Cu2+ detection in heavy metal pollution and food safety.
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Affiliation(s)
- Zuo-Qin Liang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Dong-Dong Song
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zhuo-Cheng Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Su-Hang Xu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Guo-Liang Dai
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Chang-Qing Ye
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xiao-Mei Wang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xu-Tang Tao
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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5
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Wei H, Xie M, Chen M, Jiang Q, Wang T, Xing P. Shedding light on cellular dynamics: the progress in developing photoactivated fluorophores. Analyst 2024; 149:689-699. [PMID: 38180167 DOI: 10.1039/d3an01994b] [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: 01/06/2024]
Abstract
Photoactivated fluorophores (PAFs) are highly effective imaging tools that exhibit a removal of caging groups upon light excitation, resulting in the restoration of their bright fluorescence. This unique property allows for precise control over the spatiotemporal aspects of small molecule substances, making them indispensable for studying protein labeling and small molecule signaling within live cells. In this comprehensive review, we explore the historical background of this field and emphasize recent advancements based on various reaction mechanisms. Additionally, we discuss the structures and applications of the PAFs. We firmly believe that the development of more novel PAFs will provide powerful tools to dynamically investigate cells and expand the applications of these techniques into new domains.
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Affiliation(s)
- Huihui Wei
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Mingli Xie
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Min Chen
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Qinhong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Tenghui Wang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Panfei Xing
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
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6
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Tam LKB, Lo PC, Cheung PCK, Ng DKP. A Tetrazine-Caged Carbon-Dipyrromethene as a Bioorthogonally Activatable Fluorescent Probe. Chem Asian J 2023; 18:e202300562. [PMID: 37489571 DOI: 10.1002/asia.202300562] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/19/2023] [Accepted: 07/25/2023] [Indexed: 07/26/2023]
Abstract
A water-soluble 1,2,4,5-tetrazine-substituted carbon-dipyrromethene (C-DIPY) was synthesized from the previously reported carbonyl pyrrole dimer through a two-step procedure. Owing to the presence of a tetrazine moiety, the fluorescence emission of this compound was largely quenched in phosphate-buffered saline at pH 7.4. Upon addition of a bicyclo[6.1.0]non-4-yne (BCN) derivative, the tetrazine-based quenching component of the compound was disrupted through the inverse electron-demand Diels-Alder reaction to restore the fluorescence in up to 6.6-fold. This bioorthogonal activation was also demonstrated using U-87 MG human glioblastoma cells, in which the fluorescence intensity of this C-DIPY could be enhanced by 8.7-fold upon post-incubation with the BCN derivative. The results showed that this tetrazine-caged C-DIPY can serve as a bioorthogonally activatable fluorescent probe for bioimaging. The compound, however, was found to reside preferentially in the lysosomes instead of the mitochondria of the cells as predicted based on its cationic character, which could be attributed to its energy-dependent endocytic cellular uptake pathway, for which lysosomes are the end station.
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Affiliation(s)
- Leo K B Tam
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
| | - Pui-Chi Lo
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Peter Chi Keung Cheung
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
| | - Dennis K P Ng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
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7
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Alghamdi ZS, Klausen M, Gambardella A, Lilienkampf A, Bradley M. Solid-Phase Synthesis of s-Tetrazines. Org Lett 2023; 25:3104-3108. [PMID: 37083299 PMCID: PMC10167685 DOI: 10.1021/acs.orglett.3c00955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
An efficient synthesis of s-tetrazines by solid-phase methods is described. This synthesis route was compatible with different solid-phase resins and linkers and did not require metal catalysts or high temperatures. Monosubstituted tetrazines were routinely synthesized using thiol-promoted chemistry, using dichloromethane as a carbon source, while disubstituted unsymmetrical aryl or alkyl tetrazines were synthesized using readily available nitriles. This efficient approach enabled the synthesis of s-tetrazines in high yields (70-94%), eliminating the classical solution-phase problems of mixtures of symmetrical and unsymmetrical tetrazines, with only a single final purification step required, and paves the way to the rapid synthesis of s-tetrazines with various applications in bioorthogonal chemistry and beyond.
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Affiliation(s)
- Zainab S Alghamdi
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, U.K
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Maxime Klausen
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, U.K
| | - Alessia Gambardella
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, U.K
| | - Annamaria Lilienkampf
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, U.K
| | - Mark Bradley
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, U.K
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8
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Zhang Y, Zheng Y, Tomassini A, Singh AK, Raymo FM. Photoactivatable BODIPYs for Live-Cell PALM. Molecules 2023; 28:molecules28062447. [PMID: 36985424 PMCID: PMC10057988 DOI: 10.3390/molecules28062447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/10/2023] Open
Abstract
Photoactivated localization microscopy (PALM) relies on fluorescence photoactivation and single-molecule localization to overcome optical diffraction and reconstruct images of biological samples with spatial resolution at the nanoscale. The implementation of this subdiffraction imaging method, however, requires fluorescent probes with photochemical and photophysical properties specifically engineered to enable the localization of single photoactivated molecules with nanometer precision. The synthetic versatility and outstanding photophysical properties of the borondipyrromethene (BODIPY) chromophore are ideally suited to satisfy these stringent requirements. Specifically, synthetic manipulations of the BODIPY scaffold can be invoked to install photolabile functional groups and photoactivate fluorescence under photochemical control. Additionally, targeting ligands can be incorporated in the resulting photoactivatable fluorophores (PAFs) to label selected subcellular components in live cells. Indeed, photoactivatable BODIPYs have already allowed the sub-diffraction imaging of diverse cellular substructures in live cells using PALM and can evolve into invaluable analytical probes for bioimaging applications.
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Affiliation(s)
- Yang Zhang
- Program of Polymer and Color Chemistry, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27606, USA
- Correspondence: (Y.Z.); (F.M.R.)
| | - Yeting Zheng
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146-0431, USA
| | - Andrea Tomassini
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146-0431, USA
| | - Ambarish Kumar Singh
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146-0431, USA
| | - Françisco M. Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146-0431, USA
- Correspondence: (Y.Z.); (F.M.R.)
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9
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Zhou S, Liu Y, Hao Y, Liu Z, Yu X. Dimesitylboryl-ended oligothiophene with tetrazine as core: Synthesis, structure and Diels–Alder reactivity. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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10
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Zhu J, Miao C, Wang X. An ICT-PET Dual-Controlled Strategy for Improving Molecular Probe Sensitivity: Application to Photoactivatable Fluorescence Imaging and H2S Detection. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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11
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Kikuchi K, Adair LD, Lin J, New EJ, Kaur A. Photochemical Mechanisms of Fluorophores Employed in Single-Molecule Localization Microscopy. Angew Chem Int Ed Engl 2023; 62:e202204745. [PMID: 36177530 PMCID: PMC10100239 DOI: 10.1002/anie.202204745] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Indexed: 02/02/2023]
Abstract
Decoding cellular processes requires visualization of the spatial distribution and dynamic interactions of biomolecules. It is therefore not surprising that innovations in imaging technologies have facilitated advances in biomedical research. The advent of super-resolution imaging technologies has empowered biomedical researchers with the ability to answer long-standing questions about cellular processes at an entirely new level. Fluorescent probes greatly enhance the specificity and resolution of super-resolution imaging experiments. Here, we introduce key super-resolution imaging technologies, with a brief discussion on single-molecule localization microscopy (SMLM). We evaluate the chemistry and photochemical mechanisms of fluorescent probes employed in SMLM. This Review provides guidance on the identification and adoption of fluorescent probes in single molecule localization microscopy to inspire the design of next-generation fluorescent probes amenable to single-molecule imaging.
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Affiliation(s)
- Kai Kikuchi
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Melbourne, VIC 305, Australia.,School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
| | - Liam D Adair
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.,School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jiarun Lin
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.,School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Elizabeth J New
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.,School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Amandeep Kaur
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Melbourne, VIC 305, Australia.,School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.,The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
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12
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Zhang YK, Li M, Ruan L, An P. A tetrazole-ene photoactivatable fluorophore with improved brightness and stability in protic solution. Chem Commun (Camb) 2022; 58:10404-10407. [PMID: 36039909 DOI: 10.1039/d2cc03482d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The pyrazoline fluorophore, generated by photoinduced tetrazole-ene cycloaddition, shows faint fluorescence in protic solvents. To suppress this fluorescence-quenching, we rationally designed a series of substituted diaryl tetrazoles at the N-side phenyl ring to produce a tetrazole-ene based photoactivatable fluorophore. Spectroscopic and cellular imaging studies demonstrated that the version of the fluorophore with a bis(trifluoromethyl)benzene substituent exhibited significantly enhanced brightness and photostability.
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Affiliation(s)
- Yi-Kang Zhang
- School of Chemical Science and Technology & Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University, Kunming, 650091, P. R. China.
| | - Meng Li
- School of Chemical Science and Technology & Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University, Kunming, 650091, P. R. China.
| | - Lan Ruan
- School of Chemical Science and Technology & Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University, Kunming, 650091, P. R. China.
| | - Peng An
- School of Chemical Science and Technology & Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University, Kunming, 650091, P. R. China.
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13
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Xiao M, Zhang YK, Li R, Li S, Wang D, An P. Photoactivatable Fluorogenic Azide-Alkyne Click Reaction: A Dual-Activation Fluorescent Probe. Chem Asian J 2022; 17:e202200634. [PMID: 35819362 DOI: 10.1002/asia.202200634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/01/2022] [Indexed: 11/12/2022]
Abstract
Aryl azide and diaryl tetrazole are both photoactive molecules, which can form nitrene and nitrile imine intermediates respectively by photolysis. Depending on the new finding that the azide can suppress the photolysis of tetrazole in the azide-tetrazole conjugated system, we developed aryl azide-tetrazole probes for the photoactivatable fluorogenic azide alkyne click (PFAAC) reaction, in which the aryl azide-tetrazole probes were not phoroactivatable fluorogenic itself, but the triazole products after click reaction were prefluorophore that can be activated by light. Therefore, in PFAAC chemistry, the fluorescent probes can be activated by two orthogonal events: azide-alkyne click reaction and light, which leads to spatiotemporal resolution and high signal-to-noise ratio. This PFAAC process was proved in vitro by copper catalyzed or strain-promoted azide-alkyne reactions and in live cells by spatiotemporally controlled organelle imaging. By incorporation a linker to the azide-tetrazole conjugate, this PFAAC chemistry could covalently label extra probes to the biomolecules and spatiotemporally detecting this process by photoinduced fluorescence.
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Affiliation(s)
| | | | | | | | - Di Wang
- Yunnan University, chemistry, CHINA
| | - Peng An
- Yunnan University, school of chemical science and technology, South Outer Ring Road, 650500, Kunming, CHINA
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14
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García-Vázquez R, Jørgensen JT, Bratteby KE, Shalgunov V, Hvass L, Herth MM, Kjær A, Battisti UM. Development of 18F-Labeled Bispyridyl Tetrazines for In Vivo Pretargeted PET Imaging. Pharmaceuticals (Basel) 2022; 15:ph15020245. [PMID: 35215356 PMCID: PMC8879724 DOI: 10.3390/ph15020245] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 02/05/2023] Open
Abstract
Pretargeted PET imaging is an emerging and fast-developing method to monitor immuno-oncology strategies. Currently, tetrazine ligation is considered the most promising bioorthogonal reaction for pretargeting in vivo. Recently, we have developed a method to 18F-label ultrareactive tetrazines by copper-mediated fluorinations. However, bispyridyl tetrazines—one of the most promising structures for in vivo pretargeted applications—were inaccessible using this strategy. We believed that our successful efforts to 18F-label H-tetrazines using low basic labeling conditions could also be used to label bispyridyl tetrazines via aliphatic nucleophilic substitution. Here, we report the first direct 18F-labeling of bispyridyl tetrazines, their optimization for in vivo use, as well as their successful application in pretargeted PET imaging. This strategy resulted in the design of [18F]45, which could be labeled in a satisfactorily radiochemical yield (RCY = 16%), molar activity (Am = 57 GBq/µmol), and high radiochemical purity (RCP > 98%). The [18F]45 displayed a target-to-background ratio comparable to previously successfully applied tracers for pretargeted imaging. This study showed that bispyridyl tetrazines can be developed into pretargeted imaging agents. These structures allow an easy chemical modification of 18F-labeled tetrazines, paving the road toward highly functionalized pretargeting tools. Moreover, bispyridyl tetrazines led to near-instant drug release of iTCO-tetrazine-based ‘click-to-release’ reactions. Consequently, 18F-labeled bispyridyl tetrazines bear the possibility to quantify such release in vivo in the future.
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Affiliation(s)
- Rocío García-Vázquez
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; (R.G.-V.); (K.E.B.); (V.S.)
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jesper Tranekjær Jørgensen
- Cluster for Molecular Imaging, Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3, 2100 Copenhagen, Denmark; (J.T.J.); (L.H.)
| | - Klas Erik Bratteby
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; (R.G.-V.); (K.E.B.); (V.S.)
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
- Department of Radiation Physics, Skåne University Hospital, Barngatan 3, 22242 Lund, Sweden
| | - Vladimir Shalgunov
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; (R.G.-V.); (K.E.B.); (V.S.)
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Lars Hvass
- Cluster for Molecular Imaging, Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3, 2100 Copenhagen, Denmark; (J.T.J.); (L.H.)
| | - Matthias M. Herth
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; (R.G.-V.); (K.E.B.); (V.S.)
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
- Correspondence: (M.M.H.); (A.K.); (U.M.B.)
| | - Andreas Kjær
- Cluster for Molecular Imaging, Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3, 2100 Copenhagen, Denmark; (J.T.J.); (L.H.)
- Correspondence: (M.M.H.); (A.K.); (U.M.B.)
| | - Umberto Maria Battisti
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; (R.G.-V.); (K.E.B.); (V.S.)
- Correspondence: (M.M.H.); (A.K.); (U.M.B.)
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15
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Xu J, Zai W, Ye Q, Zhang Q, Yi W, Wu J. A nitroreductase responsive and photoactivated fluorescent probe for dual-controlled tumor hypoxia imaging. RSC Adv 2022; 12:23796-23800. [PMID: 36093234 PMCID: PMC9396718 DOI: 10.1039/d2ra04004b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/11/2022] [Indexed: 12/03/2022] Open
Abstract
Tumor hypoxia has great importance in tumor progression and resistance to antitumor therapies. To precisely monitor tumor hypoxia, a controllable hypoxia imaging method is meaningful but still lacking. Herein, we develop a dual-controlled tumor hypoxia probe (TNB) by introducing a nitrophenol group and methyltetrazine group to the boron-dipyrromethene (BODIPY) dye. The fluorescence-quenching group nitrophenol is reduced to aminophenol by upregulated nitroreductase in hypoxic tumors, and the photocage methyltetrazine is cleaved by light irradiation. Hence the fluorescence of TNB is dual-controlled by hypoxia and photoactivation. We first evaluated TNB's potential for controllable hypoxia imaging in solution and tumor cells. The fluorescence of TNB under nitroreductase incubation and photoactivation increased more than 60 fold over that which was untreated or only treated with nitroreductase. Furthermore, results validate that TNB possesses photo-controllable activation features in tumor sections. We believe that the probe design based on enzyme and photoactivation responsiveness provides potential for spatiotemporal detection of other biomarkers. Tumor hypoxia has great importance in tumor progression and resistance to antitumor therapies.![]()
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Affiliation(s)
- Jialong Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Wenjing Zai
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Qingsong Ye
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Qingqing Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Wenqian Yi
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School, School of Life Sciences, Nanjing University, Nanjing 210093, China
- Jiangsu Provincial Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China
- Jiangsu R&D Platform for Controlled & Targeted Drug Delivery, Nanjing University, Nanjing 210093, China
- Institute of Drug R&D, Nanjing University, Nanjing 210093, China
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16
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Wang L, Wang S, Tang J, Espinoza VB, Loredo A, Tian Z, Weisman RB, Xiao H. Oxime as a general photocage for the design of visible light photo-activatable fluorophores. Chem Sci 2021; 12:15572-15580. [PMID: 35003586 PMCID: PMC8654061 DOI: 10.1039/d1sc05351e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/21/2021] [Indexed: 12/18/2022] Open
Abstract
Photoactivatable fluorophores have been widely used for tracking molecular and cellular dynamics with subdiffraction resolution. In this work, we have prepared a series of photoactivatable probes using the oxime moiety as a new class of photolabile caging group in which the photoactivation process is mediated by a highly efficient photodeoximation reaction. Incorporation of the oxime caging group into fluorophores results in loss of fluorescence. Upon light irradiation in the presence of air, the oxime-caged fluorophores are oxidized to their carbonyl derivatives, restoring strong fluorophore fluorescence. To demonstrate the utility of these oxime-caged fluorophores, we have created probes that target different organelles for live-cell confocal imaging. We also carried out photoactivated localization microscopy (PALM) imaging under physiological conditions using low-power light activation in the absence of cytotoxic additives. Our studies show that oximes represent a new class of visible-light photocages that can be widely used for cellular imaging, sensing, and photo-controlled molecular release.
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Affiliation(s)
- Lushun Wang
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - Shichao Wang
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - Juan Tang
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - Vanessa B Espinoza
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - Axel Loredo
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - Zeru Tian
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - R Bruce Weisman
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
| | - Han Xiao
- Department of Chemistry, Rice University 6100 Main Street Houston Texas 77005 USA
- Department of Biosciences, Rice University 6100 Main Street Houston Texas 77005 USA
- Department of Bioengineering, Rice University 6100 Main Street Houston Texas 77005 USA
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17
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Graziotto ME, Adair LD, Kaur A, Vérité P, Ball SR, Sunde M, Jacquemin D, New EJ. Versatile naphthalimide tetrazines for fluorogenic bioorthogonal labelling. RSC Chem Biol 2021; 2:1491-1498. [PMID: 34704054 PMCID: PMC8496007 DOI: 10.1039/d1cb00128k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 06/24/2021] [Indexed: 12/21/2022] Open
Abstract
Fluorescent probes for biological imaging have revealed much about the functions of biomolecules in health and disease. Fluorogenic probes, which are fluorescent only upon a bioorthogonal reaction with a specific partner, are particularly advantageous as they ensure that fluorescent signals observed in biological imaging arise solely from the intended target. In this work, we report the first series of naphthalimide tetrazines for bioorthogonal fluorogenic labelling. We establish that all of these compounds can be used for imaging through photophysical, analytical and biological studies. The best candidate was Np6mTz, where the tetrazine ring is appended to the naphthalimide at its 6-position via a phenyl linker in a meta configuration. Taking our synthetic scaffold, we generated two targeted variants, LysoNpTz and MitoNpTz, which successfully localized within the lysosomes and mitochondria respectively, without the requirement of genetic modification. In addition, the naphthalimide tetrazine system was used for the no-wash imaging of insulin amyloid fibrils in vitro, providing a new method that can monitor their growth kinetics and morphology. Since our synthetic approach is simple and modular, these new naphthalimide tetrazines provide a novel scaffold for a range of bioorthogonal tetrazine-based imaging agents for selective staining and sensing of biomolecules.
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Affiliation(s)
- Marcus E Graziotto
- The University of Sydney, School of Chemistry NSW 2006 Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney NSW 2006 Australia
| | - Liam D Adair
- The University of Sydney, School of Chemistry NSW 2006 Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney NSW 2006 Australia
| | - Amandeep Kaur
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health NSW 2006 Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney NSW 2006 Australia
| | | | - Sarah R Ball
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health NSW 2006 Australia
| | - Margaret Sunde
- The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health NSW 2006 Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney NSW 2006 Australia
| | | | - Elizabeth J New
- The University of Sydney, School of Chemistry NSW 2006 Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney NSW 2006 Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney NSW 2006 Australia
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18
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Li Z, Chen Q, Wang J, Pan X, Lu W. Research Progress and Application of Bioorthogonal Reactions in Biomolecular Analysis and Disease Diagnosis. Top Curr Chem (Cham) 2021; 379:39. [PMID: 34590223 DOI: 10.1007/s41061-021-00352-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 09/14/2021] [Indexed: 12/14/2022]
Abstract
Bioorthogonal reactions are rapid, specific and high yield reactions that can be performed in in vivo microenvironments or simulated microenvironments. At present, the main biorthogonal reactions include Staudinger ligation, copper-catalyzed azide alkyne cycloaddition, strain-promoted [3 + 2] reaction, tetrazine ligation, metal-catalyzed coupling reaction and photo-induced biorthogonal reactions. To date, many reviews have reported that bioorthogonal reactions have been used widely as a powerful tool in the field of life sciences, such as in target recognition, drug discovery, drug activation, omics research, visualization of life processes or exogenous bacterial infection processes, signal transduction pathway research, chemical reaction dynamics analysis, disease diagnosis and treatment. In contrast, to date, few studies have investigated the application of bioorthogonal reactions in the analysis of biomacromolecules in vivo. Therefore, the application of bioorthogonal reactions in the analysis of proteins, nucleic acids, metabolites, enzyme activities and other endogenous molecules, and the determination of disease-related targets is reviewed. In addition, this review discusses the future development opportunities and challenges of biorthogonal reactions. This review presents an overview of recent advances for application in biomolecular analysis and disease diagnosis, with a focus on proteins, metabolites and RNA detection.
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Affiliation(s)
- Zilong Li
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Qinhua Chen
- Department of Pharmacy, Shenzhen Baoan Authentic TCM Therapy Hospital, Shenzhen, 518101, China
| | - Jin Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xiaoyan Pan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Wen Lu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China.
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19
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Zhang Y, Zheng Y, Meana Y, Raymo FM. BODIPYs with Photoactivatable Fluorescence. Chemistry 2021; 27:11257-11267. [PMID: 34062023 DOI: 10.1002/chem.202101628] [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: 05/07/2021] [Indexed: 12/11/2022]
Abstract
The borondipyrromethene (BODIPY) chromophore is a versatile platform for the construction of photoresponsive dyes with unique properties. Specifically, its covalent connection to a photocleavable group can be exploited to engineer compounds with photoswitchable fluorescence. The resulting photoactivatable fluorophores can increase their emission intensity or shift their emission wavelengths in response to switching. Such changes permit the spatiotemporal control of fluorescence with optical stimulations and the implementation of imaging strategies that would be impossible to replicate with conventional fluorophores. Indeed, BODIPYs with photoactivatable fluorescence enable the selective highlighting of intracellular targets, the nanoscaled visualization of sub-cellular components, the real-time monitoring of dynamic events and the photochemical writing of optical barcodes.
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Affiliation(s)
- Yang Zhang
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Yeting Zheng
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA
| | - Yasniel Meana
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA
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20
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Shieh P, Hill MR, Zhang W, Kristufek SL, Johnson JA. Clip Chemistry: Diverse (Bio)(macro)molecular and Material Function through Breaking Covalent Bonds. Chem Rev 2021; 121:7059-7121. [PMID: 33823111 DOI: 10.1021/acs.chemrev.0c01282] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the two decades since the introduction of the "click chemistry" concept, the toolbox of "click reactions" has continually expanded, enabling chemists, materials scientists, and biologists to rapidly and selectively build complexity for their applications of interest. Similarly, selective and efficient covalent bond breaking reactions have provided and will continue to provide transformative advances. Here, we review key examples and applications of efficient, selective covalent bond cleavage reactions, which we refer to herein as "clip reactions." The strategic application of clip reactions offers opportunities to tailor the compositions and structures of complex (bio)(macro)molecular systems with exquisite control. Working in concert, click chemistry and clip chemistry offer scientists and engineers powerful methods to address next-generation challenges across the chemical sciences.
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Affiliation(s)
- Peyton Shieh
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Megan R Hill
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Wenxu Zhang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Samantha L Kristufek
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Jeremiah A Johnson
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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21
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Bai Y, Wan W, Huang Y, Jin W, Lyu H, Xia Q, Dong X, Gao Z, Liu Y. Quantitative interrogation of protein co-aggregation using multi-color fluorogenic protein aggregation sensors. Chem Sci 2021; 12:8468-8476. [PMID: 34221329 PMCID: PMC8221170 DOI: 10.1039/d1sc01122g] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/19/2021] [Indexed: 12/27/2022] Open
Abstract
Co-aggregation of multiple pathogenic proteins is common in neurodegenerative diseases but deconvolution of such biochemical process is challenging. Herein, we developed a dual-color fluorogenic thermal shift assay to simultaneously report on the aggregation of two different proteins and quantitatively study their thermodynamic stability during co-aggregation. Expansion of spectral coverage was first achieved by developing multi-color fluorogenic protein aggregation sensors. Orthogonal detection was enabled by conjugating sensors of minimal fluorescence crosstalk to two different proteins via sortase-tag technology. Using this assay, we quantified shifts in melting temperatures in a heterozygous model protein system, revealing that the thermodynamic stability of wild-type proteins was significantly compromised by the mutant ones but not vice versa. We also examined how small molecule ligands selectively and differentially interfere with such interplay. Finally, we demonstrated these sensors are suited to visualize how different proteins exert influence on each other upon their co-aggregation in live cells.
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Affiliation(s)
- Yulong Bai
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wang Wan
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yanan Huang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Wenhan Jin
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Haochen Lyu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Qiuxuan Xia
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xuepeng Dong
- The Second Hospital of Dalian Medical University 467 Zhongshan Road Dalian 116044 China
| | - Zhenming Gao
- The Second Hospital of Dalian Medical University 467 Zhongshan Road Dalian 116044 China
| | - Yu Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
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22
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Choi SK, Kim J, Kim E. Overview of Syntheses and Molecular-Design Strategies for Tetrazine-Based Fluorogenic Probes. Molecules 2021; 26:1868. [PMID: 33810254 PMCID: PMC8037913 DOI: 10.3390/molecules26071868] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/20/2021] [Accepted: 03/24/2021] [Indexed: 11/17/2022] Open
Abstract
Various bioorthogonal chemistries have been used for fluorescent imaging owing to the advantageous reactions they employ. Recent advances in bioorthogonal chemistry have revolutionized labeling strategies for fluorescence imaging, with inverse electron demand Diels-Alder (iEDDA) reactions in particular attracting recent attention owing to their fast kinetics and excellent specificity. One of the most interesting features of the iEDDA labeling strategy is that tetrazine-functionalized dyes are known to act as fluorogenic probes. In this review, we will focus on the synthesis, molecular-design strategies, and bioimaging applications of tetrazine-functionalized fluorogenic probes. Traditional Pinner reaction and "Pinner-like" reactions for tetrazine synthesis are discussed here, as well as metal-catalyzed C-C bond formations with convenient tetrazine intermediates and the fabrication of tetrazine-conjugated fluorophores. In addition, four different quenching mechanisms for tetrazine-modified fluorophores are presented.
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Affiliation(s)
- Sang-Kee Choi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea;
| | - Jonghoon Kim
- Department of Chemistry, Soongsil University, Seoul 06978, Korea
| | - Eunha Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea;
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23
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Som A, Pahwa M, Bawari S, Saha ND, Sasmal R, Bosco MS, Mondal J, Agasti SS. Multiplexed optical barcoding of cells via photochemical programming of bioorthogonal host-guest recognition. Chem Sci 2021; 12:5484-5494. [PMID: 34163769 PMCID: PMC8179588 DOI: 10.1039/d0sc06860h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/17/2021] [Indexed: 12/22/2022] Open
Abstract
Modern chemical and biological studies are undergoing a paradigm shift, where understanding the fate of individual cells, in an apparently homogeneous population, is becoming increasingly important. This has inculcated a growing demand for developing strategies that label individual cells with unique fluorescent signatures or barcodes so that their spatiotemporal trajectories can be mapped in real time. Among various approaches, light-regulated methods employing photocaged fluorophores have received particular attention, owing to their fine spatiotemporal control over labelling. However, their multiplexed use to barcode large numbers of cells for interrogating cellular libraries or complex tissues remains inherently challenging, due to the lack of multiple spectrally distinct photoactivated states in the currently available photocaged fluorophores. We report here an alternative multiplexable strategy based on optically controlled host-guest recognition in the cucurbit[7]uril (CB[7]) system that provides spatial control over the positioning of fluorophores to generate distinct barcodes in 'user-defined' cells. Using a combination of three spectrally distinct CB[7]-conjugated fluorophores and by sequentially performing cycles of photoactivation and fluorophore encoding, we demonstrate 10-color barcoding in microtubule-targeted fixed cells as well as 7-color barcoding in cell surface glycan targeted live MCF7 cells.
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Affiliation(s)
- Arka Som
- New Chemistry Unit, Chemistry & Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Meenakshi Pahwa
- New Chemistry Unit, Chemistry & Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Sumit Bawari
- Tata Institute of Fundamental Research 36/P, Gopanpally Village Hyderabad 500046 India
| | - Nilanjana Das Saha
- New Chemistry Unit, Chemistry & Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Ranjan Sasmal
- New Chemistry Unit, Chemistry & Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Monica Swetha Bosco
- New Chemistry Unit, Chemistry & Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Jagannath Mondal
- Tata Institute of Fundamental Research 36/P, Gopanpally Village Hyderabad 500046 India
| | - Sarit S Agasti
- New Chemistry Unit, Chemistry & Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
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24
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Lipunova GN, Nosova EV, Zyryanov GV, Charushin VN, Chupakhin ON. 1,2,4,5-Tetrazine derivatives as components and precursors of photo- and electroactive materials. Org Chem Front 2021. [DOI: 10.1039/d1qo00465d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Synthetic approaches to 3,6-disubstituted-1,2,4,5-tetrazine systems are analyzed, and their properties attractive to practical applications in photo- and electroactive materials are overviewed.
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Affiliation(s)
- Galina N. Lipunova
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
| | - Emiliya V. Nosova
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| | - Grigory V. Zyryanov
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| | - Valery N. Charushin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| | - Oleg N. Chupakhin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
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25
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Tang J, Yu C, Loredo A, Chen Y, Xiao H. Site-Specific Incorporation of a Photoactivatable Fluorescent Amino Acid. Chembiochem 2020; 22:501-504. [PMID: 32961013 DOI: 10.1002/cbic.202000602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/21/2020] [Indexed: 12/11/2022]
Abstract
Photoactivatable fluorophores are emerging optical probes for biological applications. Most photoactivatable fluorophores are relatively large in size and need to be activated by ultraviolet light; this dramatically limits their applications. To introduce photoactivatable fluorophores into proteins, recent investigations have explored several protein-labeling technologies, including fluorescein arsenical hairpin (FlAsH) Tag, HaloTag labeling, SNAPTag labeling, and other bioorthogonal chemistry-based methods. However, these technologies require a multistep labeling process. Here, by using genetic code expansion and a single sulfur-for-oxygen atom replacement within an existing fluorescent amino acid, we have site-specifically incorporated the photoactivatable fluorescent amino acid thioacridonylalanine (SAcd) into proteins in a single step. Moreover, upon exposure to visible light, SAcd can be efficiently desulfurized to its oxo derivatives, thus restoring the strong fluorescence of labeled proteins.
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Affiliation(s)
- Juan Tang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
| | - Chenfei Yu
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
| | - Axel Loredo
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
| | - Yuda Chen
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
| | - Han Xiao
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
- Department of Biosciences, Rice University, 6100 Main Street, Houston, TX, 77005, USA
- Department of Bioengineering, Rice University, 6100 Main Street, Houston, TX, 77005, USA
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