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Lochenie C, Duncan S, Zhou Y, Fingerhut L, Kiang A, Benson S, Jiang G, Liu X, Mills B, Vendrell M. Photosensitizer-Amplified Antimicrobial Materials for Broad-Spectrum Ablation of Resistant Pathogens in Ocular Infections. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404107. [PMID: 38762778 DOI: 10.1002/adma.202404107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/17/2024] [Indexed: 05/20/2024]
Abstract
The emergence of multidrug resistant (MDR) pathogens and the scarcity of new potent antibiotics and antifungals are one of the biggest threats to human health. Antimicrobial photodynamic therapy (aPDT) combines light and photosensitizers to kill drug-resistant pathogens; however, there are limited materials that can effectively ablate different classes of infective pathogens. In the present work, a new class of benzodiazole-paired materials is designed as highly potent PDT agents with broad-spectrum antimicrobial activity upon illumination with nontoxic light. The results mechanistically demonstrate that the energy transfer and electron transfer between nonphotosensitive and photosensitive benzodiazole moieties embedded within pathogen-binding peptide sequences result in increased singlet oxygen generation and enhanced phototoxicity. Chemical optimization renders PEP3 as a novel PDT agent with remarkable activity against MDR bacteria and fungi as well as pathogens at different stages of development (e.g., biofilms, spores, and fungal hyphae), which also prove effective in an ex vivo porcine model of microbial keratitis. The chemical modularity of this strategy and its general compatibility with peptide-based targeting agents will accelerate the design of highly photosensitive materials for antimicrobial PDT.
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Affiliation(s)
- Charles Lochenie
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Sheelagh Duncan
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Yanzi Zhou
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Leonie Fingerhut
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Alex Kiang
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Sam Benson
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Guanyu Jiang
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Xiaogang Liu
- Fluorescence Research Group, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Bethany Mills
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
| | - Marc Vendrell
- Centre for Inflammation Research, University of Edinburgh, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, 4-5 Little France Drive, Edinburgh, EH16 4UU, UK
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2
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Cheng Z, Benson S, Mendive-Tapia L, Nestoros E, Lochenie C, Seah D, Chang KY, Feng Y, Vendrell M. Enzyme-Activatable Near-Infrared Hemicyanines as Modular Scaffolds for in vivo Photodynamic Therapy. Angew Chem Int Ed Engl 2024; 63:e202404587. [PMID: 38717316 DOI: 10.1002/anie.202404587] [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: 03/06/2024] [Indexed: 06/21/2024]
Abstract
Photodynamic therapy is an anti-cancer treatment that requires illumination of photosensitizers to induce local cell death. Current near-infrared organic photosensitizers are built from large and non-modular structures that cannot be tuned to improve safety and minimize off-target toxicity. This work describes a novel chemical platform to generate enzyme-activatable near-infrared photosensitizers. We optimized the Se-bridged hemicyanine scaffold to include caging groups and biocompatible moieties, and generated cathepsin-triggered photosensitizers for effective ablation of human glioblastoma cells. Furthermore, we demonstrated that enzyme-activatable Se-bridged hemicyanines are effective photosensitizers for the safe ablation of microtumors in vivo, creating new avenues in the chemical design of targeted anti-cancer photodynamic therapy agents.
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Affiliation(s)
- Zhiming Cheng
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Sam Benson
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Lorena Mendive-Tapia
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Eleni Nestoros
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Charles Lochenie
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Deborah Seah
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Kai Yee Chang
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
| | - Yi Feng
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, The University of Edinburgh, EH4 2XR, Edinburgh, UK
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU, Edinburgh, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU, Edinburgh, UK
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3
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Ren X, Li H, Peng H, Yang Y, Su H, Huang C, Wang X, Zhang J, Liu Z, Wei W, Cheng K, Zhu T, Lu Z, Li Z, Zhao Q, Tang BZ, Yao SQ, Song X, Sun H. Reactivity-Tunable Fluorescent Platform for Selective and Biocompatible Modification of Cysteine or Lysine. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2402838. [PMID: 38896788 DOI: 10.1002/advs.202402838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/03/2024] [Indexed: 06/21/2024]
Abstract
Chemoselective modification of specific residues within a given protein poses a significant challenge, as the microenvironment of amino acid residues in proteins is variable. Developing a universal molecular platform with tunable chemical warheads can provide powerful tools for precisely labeling specific amino acids in proteins. Cysteine and lysine are hot targets for chemoselective modification, but current cysteine/lysine-selective warheads face challenges due to cross-reactivity and unstable reaction products. In this study, a versatile fluorescent platform is developed for highly selective modification of cysteine/lysine under biocompatible conditions. Chloro- or phenoxy-substituted NBSe derivatives effectively labeled cysteine residues in the cellular proteome with high specificity. This finding also led to the development of phenoxy-NBSe phototheragnostic for the diagnosis and activatable photodynamic therapy of GSH-overexpressed cancer cells. Conversely, alkoxy-NBSe derivatives are engineered to selectively react with lysine residues in the cellular environment, exhibiting excellent anti-interfering ability against thiols. Leveraging a proximity-driven approach, alkoxy-NBSe probes are successfully designed to demonstrate their utility in bioimaging of lysine deacetylase activity. This study also achieves integrating a small photosensitizer into lysine residues of proteins in a regioselective manner, achieving photoablation of cancer cells activated by overexpressed proteins.
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Affiliation(s)
- Xiaojie Ren
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Haokun Li
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Hui Peng
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development (MOE), MOE Key Laboratory of Tumor Molecular Biology, School of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Yang Yang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Hang Su
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Chen Huang
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Xuan Wang
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, China
| | - Jie Zhang
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Zhiyang Liu
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Wenyu Wei
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Ke Cheng
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Tianyang Zhu
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Zhenpin Lu
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Zhengqiu Li
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development (MOE), MOE Key Laboratory of Tumor Molecular Biology, School of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Qian Zhao
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Xiangzhi Song
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Hongyan Sun
- Department of Chemistry and Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
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4
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de Moliner F, Nadal-Bufi F, Vendrell M. Recent advances in minimal fluorescent probes for optical imaging. Curr Opin Chem Biol 2024; 80:102458. [PMID: 38670028 DOI: 10.1016/j.cbpa.2024.102458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024]
Abstract
Fluorescent probes have revolutionized biological imaging by enabling the real-time visualization of cellular processes under physiological conditions. However, their size and potential perturbative nature can pose challenges in retaining the integrity of biological functions. This manuscript highlights recent advancements in the development of small fluorescent probes for optical imaging studies. Single benzene-based fluorophores offer versatility with minimal disruption, exhibiting diverse properties like aggregation-induced emission and pH responsiveness. Fluorescent nucleobases enable precise labeling of nucleic acids without compromising function, offering high sensitivity and compatibility with biochemistry studies. Bright yet small fluorescent amino acids provide an interesting alternative to bulky fusion proteins, facilitating non-invasive imaging of cellular events with high precision. These miniaturized fluorophores promise enhanced capabilities for studying biological systems in a non-invasive manner, fostering further innovations in molecular imaging.
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Affiliation(s)
- Fabio de Moliner
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU Edinburgh, UK; IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU Edinburgh, UK
| | - Ferran Nadal-Bufi
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU Edinburgh, UK; IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU Edinburgh, UK
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh, EH16 4UU Edinburgh, UK; IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, EH16 4UU Edinburgh, UK.
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5
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Zheng Y, Zhu X, Jiang M, Cao F, You Q, Chen X. Development and Applications of D-Amino Acid Derivatives-based Metabolic Labeling of Bacterial Peptidoglycan. Angew Chem Int Ed Engl 2024; 63:e202319400. [PMID: 38284300 DOI: 10.1002/anie.202319400] [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: 12/18/2023] [Revised: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 01/30/2024]
Abstract
Peptidoglycan, an essential component within the cell walls of virtually all bacteria, is composed of glycan strands linked by stem peptides that contain D-amino acids. The peptidoglycan biosynthesis machinery exhibits high tolerance to various D-amino acid derivatives. D-amino acid derivatives with different functionalities can thus be specifically incorporated into and label the peptidoglycan of bacteria, but not the host mammalian cells. This metabolic labeling strategy is highly selective, highly biocompatible, and broadly applicable, which has been utilized in various fields. This review introduces the metabolic labeling strategies of peptidoglycan by using D-amino acid derivatives, including one-step and two-step strategies. In addition, we emphasize the various applications of D-amino acid derivative-based metabolic labeling, including bacterial peptidoglycan visualization (existence, biosynthesis, and dynamics, etc.), bacterial visualization (including bacterial imaging and visualization of growth and division, metabolic activity, antibiotic susceptibility, etc.), pathogenic bacteria-targeted diagnostics and treatment (positron emission tomography (PET) imaging, photodynamic therapy, photothermal therapy, gas therapy, immunotherapy, etc.), and live bacteria-based therapy. Finally, a summary of this metabolic labeling and an outlook is provided.
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Affiliation(s)
- Yongfang Zheng
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou, 350007, P.R. China
| | - Xinyu Zhu
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou, 350007, P.R. China
| | - Mingyi Jiang
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou, 350007, P.R. China
| | - Fangfang Cao
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore, 119074, Singapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
| | - Qing You
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore, 119074, Singapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore, 119074, Singapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
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Pliakopanou A, Antonopoulos I, Darzenta N, Serifi I, Simos YV, Katsenos AP, Bellos S, Alexiou GA, Kyritsis AP, Leonardos I, Vezyraki P, Peschos D, Tsamis KI. Glioblastoma research on zebrafish xenograft models: a systematic review. Clin Transl Oncol 2024; 26:311-325. [PMID: 37400666 PMCID: PMC10810942 DOI: 10.1007/s12094-023-03258-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 06/14/2023] [Indexed: 07/05/2023]
Abstract
Glioblastoma (GBM) constitutes the most common primary brain tumor in adults. The challenges in GBM therapeutics have shed light on zebrafish used as a promising animal model for preclinical GBM xenograft studies without a standardized methodology. This systematic review aims to summarize the advances in zebrafish GBM xenografting, compare research protocols to pinpoint advantages and underlying limitations, and designate the predominant xenografting parameters. Based on the PRISMA checklist, we systematically searched PubMed, Scopus, and ZFIN using the keywords "glioblastoma," "xenotransplantation," and "zebrafish" for papers published from 2005 to 2022, available in English. 46 articles meeting the review criteria were examined for the zebrafish strain, cancer cell line, cell labeling technique, injected cell number, time and site of injection, and maintenance temperature. Our review designated that AB wild-type zebrafish, Casper transparent mutants, transgenic Tg(fli1:EGFP), or crossbreeding of these predominate among the zebrafish strains. Orthotopic transplantation is more commonly employed. A number of 50-100 cells injected at 48 h post-fertilization in high density and low infusion volume is considered as an effective xenografting approach. U87 cells are used for GBM angiogenesis studies, U251 for GBM proliferation studies, and patient-derived xenograft (PDX) to achieve clinical relevance. Gradual acclimatization to 32-33 °C can partly address the temperature differential between the zebrafish and the GBM cells. Zebrafish xenograft models constitute valuable tools for preclinical studies with clinical relevance regarding PDX. The GBM xenografting research requires modification based on the objective of each research team. Automation and further optimization of the protocol parameters could scale up the anticancer drug trials.
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Affiliation(s)
- Alexandra Pliakopanou
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Ilias Antonopoulos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Nikolia Darzenta
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Iliana Serifi
- Laboratory of Biological Chemistry, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Yannis Vasilios Simos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Andreas Panagiotis Katsenos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Stefanos Bellos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | | | | | - Ioannis Leonardos
- Zoology Laboratory, Department of Biological Application and Technology, University of Ioannina, 45110, Ioannina, Greece
| | - Patra Vezyraki
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Dimitrios Peschos
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Konstantinos Ioannis Tsamis
- Laboratory of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece.
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7
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Kang J, Jeong H, Jeong M, Kim J, Park S, Jung J, An JM, Kim D. In Situ Activatable Nitrobenzene-Cysteine-Copper(II) Nano-complexes for Programmed Photodynamic Cancer Therapy. J Am Chem Soc 2023; 145:27587-27600. [PMID: 37996388 DOI: 10.1021/jacs.3c09339] [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: 11/25/2023]
Abstract
Photodynamic therapy (PDT) has been used to reduce cancerous and precancerous cells via reactive oxygen species (ROS) generation from photosensitizers. Numerous photosensitizers are available today to treat a variety of diseases, but their therapeutic efficacy is hindered within the tumor microenvironment, and there are safety concerns associated with their non-specific activation. In this work, we disclosed a nano-therapeutic based on in situ activatable nitrobenzene-cysteine-copper(II) nano-complexes (NCCNs) that work within cancer cells. Among the NCCNs, CyP shows outstanding potential as a promising candidate for programmed photodynamic cancer therapy with its unique properties such as (i) bright near-infrared imaging, (ii) chemodynamic therapeutic effect, (iii) photodynamic therapeutic effect (types I and II), and (iv) anti-cancer effect by anti-angiogenesis in early cancer stage under light. Overall, this work opens up exciting possibilities for the development of innovative and effective treatments for cancer, paving the way for future advancements in the clinical medicine field.
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Affiliation(s)
- Jisoo Kang
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hwajun Jeong
- Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Minseok Jeong
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Jaehoon Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sungnam Park
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Junyang Jung
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jong Min An
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Dokyoung Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Precision Medicine, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Center for Converging Humanities, Kyung Hee University, Seoul 02447, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
- UC San Diego Materials Research Science and Engineering Center, 9500 Gilman Drive, La Jolla, California 92093, United States
- Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, Core Research Institute (CRI), Kyung Hee University, Seoul 02447, Republic of Korea
- Center for Brain Technology, Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
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8
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Labra-Vázquez P, Rocha E, Xiao Y, Tassé M, Duhayon C, Farfán N, Santillan R, Gibot L, Lacroix PG, Malfant I. A Trojan horse approach for enhancing the cellular uptake of a ruthenium nitrosyl complex. Dalton Trans 2023; 52:18177-18193. [PMID: 37997689 DOI: 10.1039/d3dt03480a] [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: 11/25/2023]
Abstract
Ruthenium nitrosyl (RuNO) complexes continue to attract significant research interest due to several appealing features that make these photoactivatable nitric oxide (NO˙) donors attractive for applications in photoactivated chemotherapy. Interesting examples of molecular candidates capable of delivering cytotoxic concentrations of NO˙ in aqueous media have been discussed. Nevertheless, the question of whether most of these highly polar and relatively large molecules are efficiently incorporated by cells remains largely unanswered. In this paper, we present the synthesis and the chemical, photophysical and photochemical characterization of RuNO complexes functionalized with 17α-ethinylestradiol (EE), a semisynthetic steroidal hormone intended to act as a molecular Trojan horse for the targeted delivery of RuNO complexes. The discussion is centered around two main molecular targets, one containing EE (EE-Phtpy-RuNO) and a reference compound lacking this biological recognition fragment (Phtpy-RuNO). While both complexes displayed similar optical absorption profiles and NO˙ release efficiencies in aqueous media, important differences were found regarding their cellular uptake towards dermal fibroblasts, with EE-Phtpy-RuNO gratifyingly displaying a remarkable 10-fold increase in cellular uptake when compared to Phtpy-RuNO, thus demonstrating the potential drug-targeting capabilities of this biomimetic steroidal conjugate.
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Affiliation(s)
- Pablo Labra-Vázquez
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse, France.
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Erika Rocha
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Yue Xiao
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse, France.
| | - Marine Tassé
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse, France.
| | - Carine Duhayon
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse, France.
| | - Norberto Farfán
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Rosa Santillan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Apdo. Postal 14-740, 07000, Ciudad de México, Mexico
| | - Laure Gibot
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse, III - Paul Sabatier, France
| | - Pascal G Lacroix
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse, France.
| | - Isabelle Malfant
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse, France.
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9
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Benson S, Kiang A, Lochenie C, Lal N, Mohanan SMPC, Williams GOS, Dhaliwal K, Mills B, Vendrell M. Environmentally sensitive photosensitizers enable targeted photodynamic ablation of Gram-positive antibiotic resistant bacteria. Theranostics 2023; 13:3814-3825. [PMID: 37441588 PMCID: PMC10334829 DOI: 10.7150/thno.84187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/09/2023] [Indexed: 07/15/2023] Open
Abstract
Bacterial infections remain among the biggest challenges to human health, leading to high antibiotic usage, morbidity, hospitalizations, and accounting for approximately 8 million deaths worldwide every year. The overuse of antibiotics and paucity of antimicrobial innovation has led to antimicrobial resistant pathogens that threaten to reverse key advances of modern medicine. Photodynamic therapeutics can kill bacteria but there are few agents that can ablate pathogens with minimal off-target effects. Methods: We describe nitrobenzoselenadiazoles as some of the first environmentally sensitive organic photosensitizers, and their adaptation to produce theranostics with optical detection and light-controlled antimicrobial activity. We combined nitrobenzoselenadiazoles with bacteria-targeting moieties (i.e., glucose-6-phosphate, amoxicillin, vancomycin) producing environmentally sensitive photodynamic agents. Results: The labelled vancomycin conjugate was able to both visualize and eradicate multidrug resistant Gram-positive ESKAPE pathogens at nanomolar concentrations, including clinical isolates and those that form biofilms. Conclusion: Nitrobenzoselenadiazole conjugates are easily synthesized and display strong environment dependent ROS production. Due to their small size and non-invasive character, they unobtrusively label antimicrobial targeting moieties. We envisage that the simplicity and modularity of this chemical strategy will accelerate the rational design of new antimicrobial therapies for refractory bacterial infections.
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Affiliation(s)
- Sam Benson
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh EH16 4UU, UK
| | - Alex Kiang
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Charles Lochenie
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh EH16 4UU, UK
| | - Navita Lal
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
| | | | - Gareth O. S. Williams
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Kevin Dhaliwal
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Bethany Mills
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh EH16 4TJ, UK
- IRR Chemistry Hub, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh EH16 4UU, UK
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10
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Oyama T, Mendive-Tapia L, Cowell V, Kopp A, Vendrell M, Ackermann L. Late-stage peptide labeling with near-infrared fluorogenic nitrobenzodiazoles by manganese-catalyzed C-H activation. Chem Sci 2023; 14:5728-5733. [PMID: 37265715 PMCID: PMC10231426 DOI: 10.1039/d3sc01868g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 05/03/2023] [Indexed: 06/03/2023] Open
Abstract
Late-stage diversification of structurally complex amino acids and peptides provides tremendous potential for drug discovery and molecular imaging. Specifically, labeling peptides with fluorescent tags is one of the most important methods for visualizing their mode of operation. Despite major recent advances in the field, direct molecular peptide labeling by C-H activation is largely limited to dyes with relatively short emission wavelengths, leading to high background signals and poor signal-to-noise ratios. In sharp contrast, here we report on the fluorescent labeling of peptides catalyzed by non-toxic manganese(i) via C(sp2)-H alkenylation in chemo- and site-selective manners, providing modular access to novel near-infrared (NIR) nitrobenzodiazole-based peptide fluorogenic probes.
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Affiliation(s)
- Tsuyoshi Oyama
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammanstraße 2 37077 Göttingen Germany
| | - Lorena Mendive-Tapia
- Centre for Inflammation Research, The University of Edinburgh EH16 4TJ Edinburgh UK
| | - Verity Cowell
- Centre for Inflammation Research, The University of Edinburgh EH16 4TJ Edinburgh UK
| | - Adelina Kopp
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammanstraße 2 37077 Göttingen Germany
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh EH16 4TJ Edinburgh UK
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammanstraße 2 37077 Göttingen Germany
- German Center for Cardiovascular Research (DZHK) Potsdamer Straße 58 10785 Berlin Germany
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11
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Gao J, Jiang H, Chen P, Zhang R, Liu N. Photosensitizer-based small molecule theranostic agents for tumor-targeted monitoring and phototherapy. Bioorg Chem 2023; 136:106554. [PMID: 37094481 DOI: 10.1016/j.bioorg.2023.106554] [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: 03/02/2023] [Revised: 03/27/2023] [Accepted: 04/15/2023] [Indexed: 04/26/2023]
Abstract
Small molecule theranostic agents for tumor treatment exhibited triadic properties in tumor targeting, imaging, and therapy, which have attracted increasing attention as a potential complement for, or improved to, classical small molecule antitumor drugs. Photosensitizer have dual functions of imaging and phototherapy, and have been widely used in the construction of small molecule theranostic agents over the last decade. In this review, we summarized representative agents that have been studied in the field of small molecule theranostic agents based on photosensitizer in the last decade, and highlighted their characteristics and application in tumor-targeted monitoring and phototherapy. The challenges and future perspectives of photosensitizers in building small molecule theranostic agents for diagnosis and therapy of tumors were also discussed.
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Affiliation(s)
- Jiake Gao
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Hongfei Jiang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Pengwei Chen
- Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
| | - Renshuai Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China.
| | - Ning Liu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China.
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12
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Shi D, Liu W, Gao Y, Li X, Huang Y, Li X, James TD, Guo Y, Li J. Photoactivatable senolysis with single-cell resolution delays aging. NATURE AGING 2023; 3:297-312. [PMID: 37118423 DOI: 10.1038/s43587-023-00360-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 01/03/2023] [Indexed: 04/30/2023]
Abstract
Strategies that can selectively eliminate senescent cells (SnCs), namely senolytics, have been shown to promote healthy lifespan. However, it is challenging to achieve precise, broad-spectrum and tractable senolysis. Here, we integrate multiple technologies that combine the enzyme substrate of senescence-associated β-galactosidase (SA-β-gal) with fluorescence tag for the precise tracking of SnCs, construction of a bioorthogonal receptor triggered by SA-β-gal to target and anchor SnCs with single-cell resolution and incorporation of a selenium atom to generate singlet oxygen and achieve precise senolysis through controllable photodynamic therapy (PDT). We generate KSL0608-Se, a photosensitive senolytic prodrug, which is selectively activated by SA-β-gal. In naturally-aged mice, KSL0608-Se-mediated PDT prevented upregulation of age-related SnCs markers and senescence-associated secretory phenotype factors. This treatment also countered age-induced losses in liver and renal function and inhibited the age-associated physical dysfunction in mice. We therefore provide a strategy to monitor and selectively eliminate SnCs to regulate aging.
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Affiliation(s)
- Donglei Shi
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, China
| | - Wenwen Liu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, College of Pharmacy, Hainan University, Haikou, Hainan, China
| | - Ying Gao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, China
| | - Xinming Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yunyuan Huang
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xiaokang Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Tony D James
- Department of Chemistry, University of Bath, Bath, UK
| | - Yuan Guo
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, China.
| | - Jian Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China.
- Key Laboratory of Tropical Biological Resources of Ministry of Education, College of Pharmacy, Hainan University, Haikou, Hainan, China.
- Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from West Yunnan, College of Pharmacy, Dali University, Dali, China.
- Clinical Medicine Scientific and Technical Innovation Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
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13
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de Moliner F, Konieczna Z, Mendive-Tapia L, Saleeb RS, Morris K, Gonzalez-Vera JA, Kaizuka T, Grant SGN, Horrocks MH, Vendrell M. Small Fluorogenic Amino Acids for Peptide-Guided Background-Free Imaging. Angew Chem Int Ed Engl 2023; 62:e202216231. [PMID: 36412996 PMCID: PMC10108274 DOI: 10.1002/anie.202216231] [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: 11/03/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/23/2022]
Abstract
The multiple applications of super-resolution microscopy have prompted the need for minimally invasive labeling strategies for peptide-guided fluorescence imaging. Many fluorescent reporters display limitations (e.g., large and charged scaffolds, non-specific binding) as building blocks for the construction of fluorogenic peptides. Herein we have built a library of benzodiazole amino acids and systematically examined them as reporters for background-free fluorescence microscopy. We have identified amine-derivatized benzoselenadiazoles as scalable and photostable amino acids for the straightforward solid-phase synthesis of fluorescent peptides. Benzodiazole amino acids retain the binding capabilities of bioactive peptides and display excellent signal-to-background ratios. Furthermore, we have demonstrated their application in peptide-PAINT imaging of postsynaptic density protein-95 nanoclusters in the synaptosomes from mouse brain tissues.
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Affiliation(s)
- Fabio de Moliner
- Centre for Inflammation Research, The University of Edinburgh, UK
| | | | | | | | - Katie Morris
- EaStCHEM School of Chemistry, The University of Edinburgh, UK
| | | | - Takeshi Kaizuka
- Centre for Clinical Brain Sciences, The University of Edinburgh, UK
| | - Seth G N Grant
- Centre for Clinical Brain Sciences, The University of Edinburgh, UK
| | | | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh, UK
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14
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de Moliner F, Konieczna Z, Mendive‐Tapia L, Saleeb RS, Morris K, Gonzalez‐Vera JA, Kaizuka T, Grant SGN, Horrocks MH, Vendrell M. Small Fluorogenic Amino Acids for Peptide-Guided Background-Free Imaging. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 135:e202216231. [PMID: 38515539 PMCID: PMC10952862 DOI: 10.1002/ange.202216231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Indexed: 11/23/2022]
Abstract
The multiple applications of super-resolution microscopy have prompted the need for minimally invasive labeling strategies for peptide-guided fluorescence imaging. Many fluorescent reporters display limitations (e.g., large and charged scaffolds, non-specific binding) as building blocks for the construction of fluorogenic peptides. Herein we have built a library of benzodiazole amino acids and systematically examined them as reporters for background-free fluorescence microscopy. We have identified amine-derivatized benzoselenadiazoles as scalable and photostable amino acids for the straightforward solid-phase synthesis of fluorescent peptides. Benzodiazole amino acids retain the binding capabilities of bioactive peptides and display excellent signal-to-background ratios. Furthermore, we have demonstrated their application in peptide-PAINT imaging of postsynaptic density protein-95 nanoclusters in the synaptosomes from mouse brain tissues.
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Affiliation(s)
| | | | | | | | - Katie Morris
- EaStCHEM School of ChemistryThe University of EdinburghUK
| | | | - Takeshi Kaizuka
- Centre for Clinical Brain SciencesThe University of EdinburghUK
| | | | | | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghUK
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15
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Rational Design and Synthesis of Large Stokes Shift 2,6-Sulphur-Disubstituted BODIPYs for Cell Imaging. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10010019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Five new disubstituted 2,6-thioaryl-BODIPY dyes were synthesized via selective aromatic electrophilic substitution from commercially available thiophenols. The analysis of the photophysical properties via absorption and emission spectroscopy showed unusually large Stokes shifts for BODIPY fluorophores (70–100 nm), which makes them suitable probes for bioimaging. Selected compounds were evaluated for labelling primary immune cells as well as different cancer cell lines using confocal fluorescence microscopy.
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16
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Sharma B, Jain A, Perez-Garcia L, Watts JA, Rawson FJ, Chaudhary GR, Kaur G. Metallocatanionic vesicles mediated enhanced singlet oxygen generation and photodynamic therapy of cancer cells. J Mater Chem B 2022; 10:2160-2170. [DOI: 10.1039/d2tb00011c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In clinics, photodynamic therapy (PDT) is established as a non-invasive therapeutic modality for certain types of cancers and skin diseases. However, due to poor water solubility, photobleaching, and dark toxicity...
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17
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Li K, Xu S, Xiong M, Huan SY, Yuan L, Zhang XB. Molecular engineering of organic-based agents for in situ bioimaging and phototherapeutics. Chem Soc Rev 2021; 50:11766-11784. [PMID: 34570124 DOI: 10.1039/d1cs00408e] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ monitoring of the location and transportation of bioactive molecules is essential for deciphering diverse biological events in the field of biomedicine. In addition, obtaining the in situ information of lesions will provide a clear perspective for surgeons to perform precise resection in clinical surgery. Notably, delivering drugs or operating photodynamic therapy/photothermal therapy in situ by labeling the lesion regions of interest can improve treatment and reduce side effects in vivo. In various advanced imaging and therapy modalities, optical theranostic agents based on organic small molecules can be conveniently modified as needed and can be easily internalized into cells/lesions in a non-invasive manner, which are prerequisites for in situ bioimaging and precision treatment. In this tutorial review, we first summarize the in situ molecular immobilization strategies to retain small-molecule agents inside cells/lesions to prevent their diffusion in living organisms. Emphasis will be focused on introducing the application of these strategies for in situ imaging of biomolecules and precision treatment, particularly pertaining to why targeting therapy in situ is required.
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Affiliation(s)
- Ke Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Shuai Xu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Mengyi Xiong
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Shuang-Yan Huan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Lin Yuan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China. ,
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18
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Chandrasekharan HK, McShane EP, Dhaliwal K, Thomson RR, Tanner MG. Ultrafast laser ablation of a multicore polymer optical fiber for multipoint light emission. OPTICS EXPRESS 2021; 29:20765-20775. [PMID: 34266158 DOI: 10.1364/oe.424494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/26/2021] [Indexed: 06/13/2023]
Abstract
We demonstrate the use of ultrafast laser pulses to precisely ablate the side of polymer multicore optical fibres (MCF) in such a way that light is efficiently coupled out of a set of MCF cores to free space. By individually exciting sets of MCF cores, this flexible "micro-window" technology allows the controllable generation of light sources at multiple independently selectable locations along the MCF. We found that the maximum fraction of light that could be side coupled from the MCF varied between 55% and 73%.
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