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Zhang P, Li S, Wang W, Sun J, Chen Z, Wang J, Ma Q. Enhanced photodynamic inactivation against Escherichia coli O157:H7 provided by chitosan/curcumin coating and its application in food contact surfaces. Carbohydr Polym 2024; 337:122160. [PMID: 38710575 DOI: 10.1016/j.carbpol.2024.122160] [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: 12/14/2023] [Revised: 03/10/2024] [Accepted: 04/11/2024] [Indexed: 05/08/2024]
Abstract
Sterilisation technologies are essential to eliminate foodborne pathogens from food contact surfaces. However, most of the current sterilisation methods involve high energy and chemical consumption. In this study, a photodynamic inactivation coating featuring excellent antibacterial activity was prepared by dispersing curcumin as a plant-based photosensitiser in a chitosan solution. The coating generated abundant reactive oxygen species (ROS) after light irradiation at 420 nm, which eradicated ≥99.999 % of Escherichia coli O157:H7. It was also found that ROS damaged the cell membrane, leading to the leakage of cell contents and cell shrinkage on the basis of chitosan. In addition, the production of ROS first excited the bacterial antioxidant defence system resulting in the increase of peroxidase (POD) and superoxide dismutase (SOD). ROS levels exceed its capacity, causing damage to the defence system and further oxidative decomposition of large molecules, such as DNA and proteins, eventually leading to the death of E. coli O157:H7. We also found the curcumin/chitosan coating could effectively remove E. coli O157:H7 biofilms by oxidative of extracellular polysaccharides and proteins. All the contributors made the chitosan/curcumin coating an efficient detergent comparable with HClO.
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Affiliation(s)
- Pengmin Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China
| | - Shuang Li
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China
| | - Wenxiu Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China
| | - Jianfeng Sun
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China
| | - Zhizhou Chen
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China
| | - Jie Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China
| | - Qianyun Ma
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, PR China.
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2
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Dmitrieva VA, Tyutereva EV, Voitsekhovskaja OV. What can reactive oxygen species (ROS) tell us about the action mechanism of herbicides and other phytotoxins? Free Radic Biol Med 2024; 220:92-110. [PMID: 38663829 DOI: 10.1016/j.freeradbiomed.2024.04.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/09/2024]
Abstract
Reactive oxygen species (ROS) are formed in plant cells continuously. When ROS production exceeds the antioxidant capacity of the cells, oxidative stress develops which causes damage of cell components and may even lead to the induction of programmed cell death (PCD). The levels of ROS production increase upon abiotic stress, but also during pathogen attack in response to elicitors, and upon application of toxic compounds such as synthetic herbicides or natural phytotoxins. The commercial value of many synthetic herbicides is based on weed death as result of oxidative stress, and for a number of them, the site and the mechanism of ROS production have been characterized. This review summarizes the current knowledge on ROS production in plants subjected to different groups of synthetic herbicides and natural phytotoxins. We suggest that the use of ROS-specific fluorescent probes and of ROS-specific marker genes can provide important information on the mechanism of action of these toxins. Furthermore, we propose that, apart from oxidative damage, elicitation of ROS-induced PCD is emerging as one of the important processes underlying the action of herbicides and phytotoxins.
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Affiliation(s)
- Valeria A Dmitrieva
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia; Laboratory of Phytotoxicology and Biotechnology, All-Russian Institute of Plant Protection, Saint Petersburg, 196608, Russia
| | - Elena V Tyutereva
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia
| | - Olga V Voitsekhovskaja
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia.
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3
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Singh N, Sen Gupta R, Bose S. A comprehensive review on singlet oxygen generation in nanomaterials and conjugated polymers for photodynamic therapy in the treatment of cancer. NANOSCALE 2024; 16:3243-3268. [PMID: 38265094 DOI: 10.1039/d3nr05801h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
A key role in lessening humanity's continuous fight against cancer could be played by photodynamic therapy (PDT), a minimally invasive treatment employed in the medical care of a range of benign disorders and malignancies. Cancerous tissue can be effectively removed by using a light source-excited photosensitizer. Singlet oxygen and reactive oxygen species are produced via the photosensitizer as a result of this excitation. In the recent past, researchers have put in tremendous efforts towards developing photosensitizer molecules for photodynamic treatment (PDT) to treat cancer. Conjugated polymers, characterized by their efficient fluorescence, exceptional photostability, and strong light absorption, are currently under scrutiny for their potential applications in cancer detection and treatment through photodynamic and photothermal therapy. Researchers are exploring the versatility of these polymers, utilizing sophisticated chemical synthesis and adaptable polymer structures to create new variants with enhanced capabilities for generating singlet oxygen in photodynamic treatment (PDT). The incorporation of photosensitizers into conjugated polymer nanoparticles has proved to be beneficial, as it improves singlet oxygen formation through effective energy transfer. The evolution of nanotechnology has emerged as an alternative avenue for enhancing the performance of current photosensitizers and overcoming significant challenges in cancer PDT. Various materials, including biocompatible metals, polymers, carbon, silicon, and semiconductor-based nanomaterials, have undergone thorough investigation as potential photosensitizers for cancer PDT. This paper outlines the recent advances in singlet oxygen generation by investigators using an array of materials, including graphene quantum dots (GQDs), gold nanoparticles (Au NPs), silver nanoparticles (Ag NPs), titanium dioxide (TiO2), ytterbium (Yb) and thulium (Tm) co-doped upconversion nanoparticle cores (Yb/Tm-co-doped UCNP cores), bismuth oxychloride nanoplates and nanosheets (BiOCl nanoplates and nanosheets), and others. It also stresses the synthesis and application of systems such as amphiphilic block copolymer functionalized with folic acid (FA), polyethylene glycol (PEG), poly(β-benzyl-L-aspartate) (PBLA10) (FA-PEG-PBLA10) functionalized with folic acid, tetra(4-hydroxyphenyl)porphyrin (THPP-(PNIPAM-b-PMAGA)4), pyrazoline-fused axial silicon phthalocyanine (HY-SiPc), phthalocyanines (HY-ZnPcp, HY-ZnPcnp, and HY-SiPc), silver nanoparticles coated with polyaniline (Ag@PANI), doxorubicin (DOX) and infrared (IR)-responsive poly(2-ethyl-2-oxazoline) (PEtOx) (DOX/PEtOx-IR NPs), particularly in NIR imaging-guided photodynamic therapy (fluorescent and photoacoustic). The study puts forward a comprehensive summary and a convincing justification for the usage of the above-mentioned materials in cancer PDT.
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Affiliation(s)
- Neetika Singh
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka - 560012, India.
| | - Ria Sen Gupta
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka - 560012, India.
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka - 560012, India.
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4
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Dos Santos DNS, Naskar N, Delgado-Pinar E, Reess K, Seixas de Melo JS, Rueck A. Bromine indirubin FLIM/PLIM sensors to measure oxygen in normoxic and hypoxic PDT conditions. Photodiagnosis Photodyn Ther 2024; 45:103964. [PMID: 38218570 DOI: 10.1016/j.pdpdt.2024.103964] [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: 10/30/2023] [Revised: 12/26/2023] [Accepted: 01/04/2024] [Indexed: 01/15/2024]
Abstract
BACKGROUND The induction of phototoxicity during photodynamic therapy (PDT) is dependent on oxygen availability. For this reason, the development of sensors to measure oxygen and oxygen consumption is extremely important. APPROACH In this project we have used Fluorescence Lifetime imaging (FLIM) and Phosphorescence Lifetime Imaging/ delayed Fluorescence Lifetime Imaging (PLIM/dFLIM) to investigate the ability of bromine indirubin derivatives as oxygen sensors. RESULTS The oxygen sensitivity of bromine indirubins was detected through PLIM/dFLIM. Moreover, we have observed, by measuring nicotinamide adenine dinucleotide (NADH) FLIM, that bromine indirubin has a significant impact on cellular metabolism by shifting the SCC-4 Cells metabolism from oxidative phosphorylation (OXPHOS) to glycolysis. CONCLUSIONS In conclusion, this study successfully achieves its goals and provides important insights into the use of indirubin as a potential oxygen consumption sensor with the capability to identify and differentiate between normoxic and hypoxic regions within the cells.
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Affiliation(s)
- D N S Dos Santos
- University Ulm, Core Facility Confocal and Multiphoton Microscopy N24, Albert-Einstein-Allee 11, 89081 Ulm, Germany; University of Coimbra, CQC-ISM, Department of Chemistry, Coimbra, P3004-535, Portugal.
| | - N Naskar
- University Ulm, Core Facility Confocal and Multiphoton Microscopy N24, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - E Delgado-Pinar
- University of Coimbra, CQC-ISM, Department of Chemistry, Coimbra, P3004-535, Portugal; Molecular Science Institute, Inorganic Chemistry Department, University of Valencia, C/Catedrático José Beltrán 2, Paterna 46980, Valencia, Spain
| | - K Reess
- University Ulm, Core Facility Confocal and Multiphoton Microscopy N24, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - J S Seixas de Melo
- University of Coimbra, CQC-ISM, Department of Chemistry, Coimbra, P3004-535, Portugal
| | - A Rueck
- University Ulm, Core Facility Confocal and Multiphoton Microscopy N24, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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5
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Wang Y, Zhou X, Yao L, Hu Q, Liu H, Zhao G, Wang K, Zeng J, Sun M, Lv C. Capsaicin Enhanced the Efficacy of Photodynamic Therapy Against Osteosarcoma via a Pro-Death Strategy by Inducing Ferroptosis and Alleviating Hypoxia. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2306916. [PMID: 38221813 DOI: 10.1002/smll.202306916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Ferroptosis, a novel form of nonapoptotic cell death, can effectively enhance photodynamic therapy (PDT) performance by disrupting intracellular redox homeostasis and promoting apoptosis. However, the extremely hypoxic tumor microenvironment (TME) together with highly expressed hypoxia-inducible factor-1α (HIF-1α) presents a considerable challenge for clinical PDT against osteosarcoma (OS). Hence, an innovative nanoplatform that enhances antitumor PDT by inducing ferroptosis and alleviating hypoxia is fabricated. Capsaicin (CAP) is widely reported to specifically activate transient receptor potential vanilloid 1 (TRPV1) channel, trigger an increase in intracellular Ca2+ concentration, which is closely linked with ferroptosis, and participate in decreased oxygen consumption by inhibiting HIF-1α in tumor cells, potentiating PDT antitumor efficiency. Thus, CAP and the photosensitizer IR780 are coencapsulated into highly biocompatible human serum albumin (HSA) to construct a nanoplatform (CI@HSA NPs) for synergistic tumor treatment under near-infrared (NIR) irradiation. Furthermore, the potential underlying signaling pathways of the combination therapy are investigated. CI@HSA NPs achieve real-time dynamic distribution monitoring and exhibit excellent antitumor efficacy with superior biosafety in vivo. Overall, this work highlights a promising NIR imaging-guided "pro-death" strategy to overcome the limitations of PDT for OS by promoting ferroptosis and alleviating hypoxia, providing inspiration and support for future innovative tumor therapy approaches.
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Affiliation(s)
- Yang Wang
- Department of Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610064, P. R. China
| | - Xueru Zhou
- West China School of Pharmacy, Sichuan University, Chengdu, 610064, P. R. China
| | - Li Yao
- Department of Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610064, P. R. China
| | - Qin Hu
- Emergency and Trauma College, Hainan Medical University, Haikou, 571199, P. R. China
| | - Haoran Liu
- Emergency and Trauma College, Hainan Medical University, Haikou, 571199, P. R. China
| | - Guosheng Zhao
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Kai Wang
- Department of Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610064, P. R. China
| | - Jun Zeng
- Department of Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610064, P. R. China
| | - Mingwei Sun
- Department of Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610064, P. R. China
| | - Chuanzhu Lv
- Department of Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610064, P. R. China
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, 571199, P. R. China
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199, P. R. China
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6
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Kasparkova J, Hernández-García A, Kostrhunova H, Goicuría M, Novohradsky V, Bautista D, Markova L, Santana MD, Brabec V, Ruiz J. Novel 2-(5-Arylthiophen-2-yl)-benzoazole Cyclometalated Iridium(III) dppz Complexes Exhibit Selective Phototoxicity in Cancer Cells by Lysosomal Damage and Oncosis. J Med Chem 2024; 67:691-708. [PMID: 38141031 PMCID: PMC10788912 DOI: 10.1021/acs.jmedchem.3c01978] [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: 10/23/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
A second-generation series of biscyclometalated 2-(5-aryl-thienyl)-benzimidazole and -benzothiazole Ir(III) dppz complexes [Ir(C^N)2(dppz)]+, Ir1-Ir4, were rationally designed and synthesized, where the aryl group attached to the thienyl ring was p-CF3C6H4 or p-Me2NC6H4. These new Ir(III) complexes were assessed as photosensitizers to explore the structure-activity correlations for their potential use in biocompatible anticancer photodynamic therapy. When irradiated with blue light, the complexes exhibited high selective potency across several cancer cell lines predisposed to photodynamic therapy; the benzothiazole derivatives (Ir1 and Ir2) were the best performers, Ir2 being also activatable with green or red light. Notably, when irradiated, the complexes induced leakage of lysosomal content into the cytoplasm of HeLa cancer cells and induced oncosis-like cell death. The capability of the new Ir complexes to photoinduce cell death in 3D HeLa spheroids has also been demonstrated. The investigated Ir complexes can also catalytically photo-oxidate NADH and photogenerate 1O2 and/or •OH in cell-free media.
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Affiliation(s)
- Jana Kasparkova
- Czech
Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno CZ-61200, Czech Republic
| | - Alba Hernández-García
- Departamento
de Química Inorgánica, Universidad de Murcia, and Biomedical
Research Institute of Murcia (IMIB-Arrixaca), Murcia E-30100, Spain
| | - Hana Kostrhunova
- Czech
Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno CZ-61200, Czech Republic
| | - Marta Goicuría
- Departamento
de Química Inorgánica, Universidad de Murcia, and Biomedical
Research Institute of Murcia (IMIB-Arrixaca), Murcia E-30100, Spain
| | - Vojtěch Novohradsky
- Czech
Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno CZ-61200, Czech Republic
| | | | - Lenka Markova
- Czech
Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno CZ-61200, Czech Republic
| | - María Dolores Santana
- Departamento
de Química Inorgánica, Universidad de Murcia, and Biomedical
Research Institute of Murcia (IMIB-Arrixaca), Murcia E-30100, Spain
| | - Viktor Brabec
- Czech
Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno CZ-61200, Czech Republic
| | - José Ruiz
- Departamento
de Química Inorgánica, Universidad de Murcia, and Biomedical
Research Institute of Murcia (IMIB-Arrixaca), Murcia E-30100, Spain
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7
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Vinnyk YO, Kryvoruchko IA, Boyko VV, Ivanova YV, Gramatiuk S, Sargsyan K. Investigate the Possibility of Using Phosphorescence in Clinical Oncology as an Early Prognostic Test in Detecting Brain Carcinogenesis. J Fluoresc 2023; 33:2441-2449. [PMID: 37103675 PMCID: PMC10640445 DOI: 10.1007/s10895-023-03237-9] [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: 03/07/2023] [Accepted: 03/31/2023] [Indexed: 04/28/2023]
Abstract
Phosphorescence is considered one of the non-invasive glioblastoma testing methods based on studying molecular energy and the metabolism of L-tryptophan (Trp) through KP, which provides essential information on regulating immunity and neuronal function. This study aimed to conduct a feasibility study using phosphorescence in clinical oncology as an early prognostic test in detecting Glioblastoma. This study was conducted on 1039 patients who were operated on with follow-up between January 1, 2014, and December 1, 2022, and retrospectively evaluated in participating institutions in Ukraine (the Department of Oncology, Radiation Therapy, Oncosurgery, and Palliative Care at the Kharkiv National Medical University). Method of protein phosphorescence detection included two steps. During the first step, of luminol-dependent phosphorescence intensity in serum was carried out after its activation by the light source, according to the spectrofluorimeter method, as follows. At a temperature of 30 °C, serum drops were dried for 20 min to form a solid film. After that, we put the quartz plate with dried serum in a phosphoroscope of luminescent complex and measured the intensity. With the help of Max-Flux Diffraction Optic Parallel Beam Graded Multilayer Monochromator (Rigaku Americas Corporation) following spectral lines as 297, 313, 334, 365, 404, and 434 nm were distinguished and absorbed by serum film in the form of light quantum. The monochromator exit split width was 0.5 mm. Considering the limitations of each of the non-invasive tools currently available, phosphorescence-based diagnostic methods are ideally integrated into the NIGT platform: a non-invasive approach for visualizing a tumor and its main tumor characteristics in the spatial and temporal order. Because trp is present in virtually every cell in the body, these fluorescent and phosphorescent fingerprints can be used to detect cancer in many different organs. Using phosphorescence, it is possible to create predictive models for GBM in both primary and secondary diagnostics. This will assist clinicians in selecting the appropriate treatment option, monitoring treatment, and adapting to the era of patient-centered precision medicine.
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Affiliation(s)
- Yuriy O Vinnyk
- Department of Oncology, Radiation Therapy, Oncosurgery and Palliative Care, Kharkiv National Medical University, Nauky Avenue, Kharkiv, 61022, Ukraine
| | - Igor A Kryvoruchko
- Department of Surgery No.2, Kharkiv National Medical University, Nezalezhnosti Avenue, Kharkiv, 61022, Ukraine.
| | - Valeriy V Boyko
- Institute General and Emergency Surgery Named After V.T. Zaitcev of the National Academy of Medical Sciences of Ukraine, Balakireva Entry, Kharkiv, 61103, Ukraine
- Department of Surgery No.1, Kharkiv National Medical University, Balakireva Entry, Kharkiv, 61103, Ukraine
| | - Yulia V Ivanova
- Department of Surgery No.1, Kharkiv National Medical University, Balakireva Entry, Kharkiv, 61103, Ukraine
| | - Svetlana Gramatiuk
- Institute of Bio-Stem Cell Rehabilitation, Ukraine Association of Biobank, Puskinska Str, Kharkiv, 61022, Ukraine.
- International Biobanking and Education, Medical University of Graz, Elisabethstraße, 8010, Graz, Austria.
| | - Karine Sargsyan
- International Biobanking and Education, Medical University of Graz, Elisabethstraße, 8010, Graz, Austria
- Department of Medical Genetics, Yerevan State Medical University, Koryun 30, 0012, Yerevan, Armenia
- Cancer Center, Cedars-Sinai Medical Center, Beverly Hills, 90200, USA
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8
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Donkor GY, Anderson GM, Stadler M, Tawiah PO, Orellano CD, Edwards KA, Dahl JU. A novel ruthenium-silver based antimicrobial potentiates aminoglycoside activity against Pseudomonas aeruginosa. mSphere 2023; 8:e0019023. [PMID: 37646510 PMCID: PMC10597350 DOI: 10.1128/msphere.00190-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/05/2023] [Indexed: 09/01/2023] Open
Abstract
The rapid dissemination of antibiotic resistance combined with the decline in the discovery of novel antibiotics represents a major challenge for infectious disease control that can only be mitigated by investments in novel treatment strategies. Alternative antimicrobials, including silver, have regained interest due to their diverse mechanisms of inhibiting microbial growth. One such example is AGXX, a broad-spectrum antimicrobial that produces highly cytotoxic reactive oxygen species (ROS) to inflict extensive macromolecular damage. Due to the connections identified between ROS production and antibiotic lethality, we hypothesized that AGXX could potentially increase the activity of conventional antibiotics. Using the gram-negative pathogen Pseudomonas aeruginosa, we screened possible synergistic effects of AGXX on several antibiotic classes. We found that the combination of AGXX and aminoglycosides tested at sublethal concentrations led to a rapid exponential decrease in bacterial survival and restored the sensitivity of a kanamycin-resistant strain. ROS production contributes significantly to the bactericidal effects of AGXX/aminoglycoside treatments, which is dependent on oxygen availability and can be reduced by the addition of ROS scavengers. Additionally, P. aeruginosa strains deficient in ROS detoxifying/repair genes were more susceptible to AGXX/aminoglycoside treatment. We further demonstrate that this synergistic interaction was associated with a significant increase in outer and inner membrane permeability, resulting in increased antibiotic influx. Our study also revealed that AGXX/aminoglycoside-mediated killing requires an active proton motive force across the bacterial membrane. Overall, our findings provide an understanding of cellular targets that could be inhibited to increase the activity of conventional antimicrobials. IMPORTANCE The emergence of drug-resistant bacteria coupled with the decline in antibiotic development highlights the need for novel alternatives. Thus, new strategies aimed at repurposing conventional antibiotics have gained significant interest. The necessity of these interventions is evident especially in gram-negative pathogens as they are particularly difficult to treat due to their outer membrane. This study highlights the effectiveness of the antimicrobial AGXX in potentiating aminoglycoside activities against P. aeruginosa. The combination of AGXX and aminoglycosides not only reduces bacterial survival rapidly but also significantly re-sensitizes aminoglycoside-resistant P. aeruginosa strains. In combination with gentamicin, AGXX induces increased endogenous oxidative stress, membrane damage, and iron-sulfur cluster disruption. These findings emphasize AGXX's potential as a route of antibiotic adjuvant development and shed light on potential targets to enhance aminoglycoside activity.
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Affiliation(s)
- Gracious Yoofi Donkor
- School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA
| | - Greg M. Anderson
- School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA
| | - Michael Stadler
- School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA
| | - Patrick Ofori Tawiah
- School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA
| | - Carl D. Orellano
- School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA
| | - Kevin A. Edwards
- School of Biological Sciences, Illinois State University, Cell Biology, Normal, Illinois, USA
| | - Jan-Ulrik Dahl
- School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA
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9
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Chae S, Kim MS, Kim JH, Fortner JD. Nanobubble Reactivity: Evaluating Hydroxyl Radical Generation (or Lack Thereof) under Ambient Conditions. ACS ES&T ENGINEERING 2023; 3:1504-1510. [PMID: 37854075 PMCID: PMC10581208 DOI: 10.1021/acsestengg.3c00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 10/20/2023]
Abstract
Nanobubble (NB) generation of reactive oxygen species (ROS), especially hydroxyl radical (·OH), has been controversial. In this work, we extensively characterize NBs in solution, with a focus on ROS generation (as ·OH), through a number of methods including degradation of ·OH-specific target compounds, electron paramagnetic resonance (EPR), and a fluorescence-based indicator. Generated NBs exhibit consistent physical characteristics (size, surface potential, and concentration) when compared with previous studies. For conditions described, which are considered as high O2 NB concentrations, no degradation of benzoic acid (BA), a well-studied ·OH scavenger, was observed in the presence of NBs (over 24 h) and no EPR signal for ·OH was detected. While a positive fluorescence response was measured when using a fluorescence probe for ·OH, aminophenyl fluorescein (APF), we provide an alternate explanation for the result. Gas/liquid interfacial characterization indicates that the surface of a NB is proton-rich and capable of inducing acid-catalyzed hydrolysis of APF, which results in a false (positive) fluorescence response. Given these negative results, we conclude that NB-induced ·OH generation is minimal, if at all, for conditions evaluated.
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Affiliation(s)
- Seung
Hee Chae
- Department
of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave., New Haven, Connecticut 06520, United States
| | - Min Sik Kim
- Department
of Environmental Engineering and Soil Environment Research Center, Jeonbuk National University, Jeonju, Jeollabukdo 54896, Republic of Korea
| | - Jae-Hong Kim
- Department
of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave., New Haven, Connecticut 06520, United States
| | - John D. Fortner
- Department
of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave., New Haven, Connecticut 06520, United States
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10
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Li Y, Zhang D, Yu Y, Zhang L, Li L, Shi L, Feng G, Tang BZ. A Cascade Strategy Boosting Hydroxyl Radical Generation with Aggregation-Induced Emission Photosensitizers-Albumin Complex for Photodynamic Therapy. ACS NANO 2023; 17:16993-17003. [PMID: 37606032 DOI: 10.1021/acsnano.3c04256] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Effective photodynamic therapy (PDT) requires photosensitizers (PSs) to massively generate type I reactive oxygen species (ROS) in a less oxygen-dependent manner in the hypoxia tumor microenvironment. Herein, we present a cascade strategy to boost type I ROS, especially hydroxyl radical (OH·-), generation with an aggregation-induced emission (AIE) photosensitizer-albumin complex for hypoxia-tolerant PDT. The cationic AIE PS TPAQ-Py-PF6 (TPA = triphenylamine, Q = anthraquinone, Py = pyridine) contains three important moieties to cooperatively enhance free radical generation: the AIE-active TPA unit ensures the effective triplet exciton generation in aggregate, the anthraquinone moiety possesses the redox cycling ability to promote electron transfer, while the cationic methylpyridinium cation further increases intramolecular charge transfer and electron separation processes. Inserting the cationic TPAQ-Py-PF6 into the hydrophobic domain of bovine serum albumin nanoparticles (BSA NPs) could greatly immobilize its molecular geometry to further increase triplet exciton generation, while the electron-rich microenvironment of BSA ultimately leads to OH·- generation. Both experimental and theoretical results confirm the effectiveness of our molecular cationization and BSA immobilization cascade strategy for enhancing OH·- generation. In vitro and in vivo experiments validate the excellent antitumor PDT performance of BSA NPs, superior to the conventional polymeric encapsulation approach. Such a multidimensional cascade strategy for specially boosting OH·- generation shall hold great potential in hypoxia-tolerant PDT and related antitumor applications.
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Affiliation(s)
- Yulu Li
- AIE Institute, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Di Zhang
- AIE Institute, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuewen Yu
- AIE Institute, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Le Zhang
- AIE Institute, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ling Li
- Precision Research Center for Refractory Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Leilei Shi
- Precision Research Center for Refractory Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Guangxue Feng
- AIE Institute, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ben Zhong Tang
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen City 518172, Guangdong, China
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11
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Kessel D. Critical PDT Theory VI: Detection of Reactive Oxygen Species: Trials and Errors. Photochem Photobiol 2023; 99:1216-1217. [PMID: 36625179 DOI: 10.1111/php.13778] [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: 12/13/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Abstract
Fluorescence intensity of DCFH-DA in hepatoma 1c1c7 cells after 10 min incubations.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI
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12
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Lin R, Liu J, Xu W, Liu Z, He X, Zheng C, Kang M, Li X, Zhang Z, Feng HT, Lam JWY, Wang D, Chen M, Tang BZ. Type I Photosensitization with Strong Hydroxyl Radical Generation in NIR Dye Boosted by Vigorous Intramolecular Motions for Synergistic Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303212. [PMID: 37232045 DOI: 10.1002/adma.202303212] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/16/2023] [Indexed: 05/27/2023]
Abstract
Development of type I photosensitizers (PSs) with strong hydroxyl radical (· OH) formation is particularly important in the anaerobic tumor treatment. On the other hand, it is challenging to obtain an efficient solid-state intramolecular motion to promote the development of molecular machine and molecular motor. However, the relationship between them is never revealed. In this work, a pyrazine-based near-infrared type I PS with remarkable donor-acceptor effect is developed. Notably, the intramolecular motions are almost maximized by the combination of intramolecular and intermolecular engineering to simultaneously introduce the unlimited bond stretching vibration and boost the group rotation. The photothermal conversion caused by the intramolecular motions is realized with efficiency as high as 86.8%. The D-A conformation of PS can also induce a very small singlet-triplet splitting of 0.07 eV, which is crucial to promote the intersystem crossing for the triplet sensitization. Interestingly, its photosensitization is closely related to the intramolecular motions, and a vigorous motion may give rise to a strong · OH generation. In view of its excellent photosensitization and photothermal behavior, the biocompatible PS exhibits a superior imaging-guided cancer synergistic therapy. This work stimulates the development of advanced PS for the biomedical application and solid-state intramolecular motions.
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Affiliation(s)
- Runfeng Lin
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China
| | - Junkai Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Weilin Xu
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zicheng Liu
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China
| | - Xiang He
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China
| | - Canze Zheng
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China
| | - Miaomiao Kang
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xue Li
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zhijun Zhang
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Hai-Tao Feng
- AIE Research Center, Shaanxi Key Laboratory of Photochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, 721013, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Dong Wang
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Ming Chen
- College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
- School of Science and Engineering, Shenzhen Key Laboratory of Functional Aggregate Materials, The Chinese University of Hong Kong, Shenzhen, 518172, China
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13
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Safiarian M, Ugboya A, Khan I, Marichev KO, Grant KB. New Insights into the Phototoxicity of Anthracene-Based Chromophores: The Chloride Salt Effect†. Chem Res Toxicol 2023; 36:1002-1020. [PMID: 37347986 PMCID: PMC10354805 DOI: 10.1021/acs.chemrestox.2c00235] [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: 07/26/2022] [Indexed: 06/24/2023]
Abstract
Unraveling the causes underlying polycyclic aromatic hydrocarbon phototoxicity is an essential step in understanding the harmful effects of these compounds in nature. Toward this end, we have studied the DNA interactions and photochemistry of N1-(anthracen-9-ylmethyl)ethane-1,2-diaminium dichloride in the presence and absence of NaF, KF, NaCl, KCl, NaBr, KBr, NaI, and KI (350 nm hν, pH 7.0). Exposing pUC19 plasmid to UV light in solutions containing 400 mM KCl formed significantly more direct strand breaks in DNA compared to no-salt control reactions. In contrast, NaCl increased DNA damage moderately, while the sodium(I) and potassium(I) fluoride, bromide, and iodide salts generally inhibited cleavage (I- > Br- > F-). A halide anion-induced heavy-atom effect was indicated by monitoring anthracene photodegradation and by employing the hydroxyl radical (•OH) probe hydroxyphenyl fluorescein (HPF). These studies revealed that among no-salt controls and the eight halide salts, only NaCl and KCl enabled the anthracene to photosensitize the production of high levels of DNA-damaging reactive oxygen species (ROS). Pre-irradiation of N1-(anthracen-9-ylmethyl)ethane-1,2-diaminium dichloride at 350 nm increased the amounts of chloride salt-induced •OH detected by HPF in subsequent anthracene photoactivation experiments. Taking into consideration that •OH and other highly reactive ROS are extremely short-lived, this result suggests that the pre-irradiation step might lead to the formation of oxidized anthracene photoproducts that are exceedingly redox-active. The fluorometric probes HPF and Singlet Oxygen Sensor Green revealed that KCl concentrations ranging from 150 to 400 mM and from 100 to 400 mM, respectively, enhanced N1-(anthracen-9-ylmethyl)ethane-1,2-diaminium dichloride photosensitized •OH and singlet oxygen (1O2) production over no-salt controls. Considering the relatively high levels of Na+, K+, and Cl- ions that exist in the environment and in living organisms, our findings may be relevant to the phototoxic effects exhibited by anthracenes and other polycyclic hydrocarbons in vivo.
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Affiliation(s)
| | | | - Imran Khan
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Kostiantyn O. Marichev
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Kathryn B. Grant
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
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14
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Pallavi P, Harini K, Elboughdiri N, Gowtham P, Girigoswami K, Girigoswami A. Infections associated with SARS-CoV-2 exploited via nanoformulated photodynamic therapy. ADMET AND DMPK 2023; 11:513-531. [PMID: 37937246 PMCID: PMC10626507 DOI: 10.5599/admet.1883] [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: 05/08/2023] [Revised: 06/30/2023] [Indexed: 11/09/2023] Open
Abstract
Background and purpose The pandemic of COVID-19 has highlighted the need for managing infectious diseases, which spreads by airborne transmission leading to serious health, social, and economic issues. SARS-CoV-2 is an enveloped virus with a 60-140 nm diameter and particle-like features, which majorly accounts for this disease. Expanding diagnostic capabilities, developing safe vaccinations with long-lasting immunity, and formulating effective medications are the strategies to be investigated. Experimental approach For the literature search, electronic databases such as Scopus, Google Scholar, MEDLINE, Embase, PubMed, and Web of Science were used as the source. Search terms like 'Nano-mediated PDT,' 'PDT for SARS-CoV-2', and 'Nanotechnology in treatment for SARS-CoV-2' were used. Out of 275 initially selected articles, 198 were chosen after the abstract screening. During the full-text screening, 80 papers were excluded, and 18 were eliminated during data extraction. Preference was given to articles published from 2018 onwards, but a few older references were cited for their valuable information. Key results Synthetic nanoparticles (NPs) have a close structural resemblance to viruses and interact greatly with their proteins due to their similarities in the configurations. NPs had previously been reported to be effective against a variety of viruses. In this way, with nanoparticles, photodynamic therapy (PDT) can be a viable alternative to antibiotics in fighting against microbial infections. The protocol of PDT includes the activation of photosensitizers using specific light to destroy microorganisms in the presence of oxygen, treating several respiratory diseases. Conclusion The use of PDT in treating COVID-19 requires intensive investigations, which has been reviewed in this manuscript, including a computational approach to formulating effective photosensitizers.
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Affiliation(s)
- Pragya Pallavi
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, TN-603103, India
| | - Karthick Harini
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, TN-603103, India
| | - Noureddine Elboughdiri
- Chemical Engineering Department, College of Engineering, University of Ha'il, P.O. Box 2440, Ha'il 81441, Saudi Arabia
- Chemical Engineering Process Department, National School of Engineers Gabes, University of Gabes, Gabes 6029, Tunisia
| | - Pemula Gowtham
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, TN-603103, India
| | - Koyeli Girigoswami
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, TN-603103, India
| | - Agnishwar Girigoswami
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai, TN-603103, India
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15
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Donkor GY, Anderson GM, Stadler M, Tawiah PO, Orellano CD, Edwards KA, Dahl JU. The Novel Silver-Containing Antimicrobial Potentiates Aminoglycoside Activity Against Pseudomonas aeruginosa. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.15.532855. [PMID: 36993297 PMCID: PMC10055142 DOI: 10.1101/2023.03.15.532855] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The rapid dissemination of antibiotic resistance combined with the decline in the discovery of novel antibiotics represents a major challenge for infectious disease control that can only be mitigated by investments into novel treatment strategies. Alternative antimicrobials, including silver, have regained interest due to their diverse mechanisms of inhibiting microbial growth. One such example is AGXX®, a broad-spectrum silver containing antimicrobial that produces highly cytotoxic reactive oxygen species (ROS) to inflict extensive macromolecular damage. Due to connections identified between ROS production and antibiotic lethality, we hypothesized that AGXX® could potentially increase the activity of conventional antibiotics. Using the gram-negative pathogen Pseudomonas aeruginosa, we screened possible synergistic effects of AGXX® on several antibiotic classes. We found that the combination of AGXX® and aminoglycosides tested at sublethal concentrations led to a rapid exponential decrease in bacterial survival and restored sensitivity of a kanamycin-resistant strain. ROS production contributes significantly to the bactericidal effects of AGXX®/aminoglycoside treatments, which is dependent on oxygen availability and can be reduced by the addition of ROS scavengers. Additionally, P. aeruginosa strains deficient in ROS detoxifying/repair genes were more susceptible to AGXX®/aminoglycoside treatment. We further demonstrate that this synergistic interaction was associated with significant increase in outer and inner membrane permeability, resulting in increased antibiotic influx. Our study also revealed that AGXX®/aminoglycoside-mediated killing requires an active proton motive force across the bacterial membrane. Overall, our findings provide an understanding of cellular targets that could be inhibited to increase the activity of conventional antimicrobials.
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16
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Kumar A, Mondal A, Douglass ME, Francis DJ, Garren MR, Estes Bright LM, Ghalei S, Xie J, Brisbois EJ, Handa H. Nanoarchitectonics of nitric oxide releasing supramolecular structures for enhanced antibacterial efficacy under visible light irradiation. J Colloid Interface Sci 2023; 640:144-161. [PMID: 36842420 PMCID: PMC10081829 DOI: 10.1016/j.jcis.2023.02.083] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023]
Abstract
Light-controlled therapies offer a promising strategy to prevent and suppress infections caused by numerous bacterial pathogens. Excitation of exogenously supplied photosensitizers (PS) at specific wavelengths elicits levels of reactive oxygen intermediates toxic to bacteria. Porphyrin-based supramolecular nanostructure frameworks (SNF) are effective PS with unique physicochemical properties that have led to their widespread use in photomedicine. Herein, we developed a nitric oxide (NO) releasing, biocompatible, and stable porphyrin-based SNF (SNF-NO), which was achieved through a confined noncovalent self-assembly process based on π-π stacking. Characterization of the SNFs via scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis showed the formation of three-dimensional, well-defined octahedral structures. These SNF-NO were shown to exhibit a red shift due to the noncovalent self-assembly of porphyrins, which also show extended light absorption to broadly cover the entire visible light spectrum to enhance photodynamic therapy (PDT). Under visible light irradiation (46 J cm-2), the SNF generates high yields of singlet oxygen (1O2) radicals, hydroxyl radicals (HO), superoxide radicals (O2), and peroxynitrite (ONOO-) radicals that have shown potential to enhance antimicrobial photodynamic therapy (APDT) against Gram-positive methicillin-resistant Staphylococcus aureus (MRSA) and Gram-negative Escherichia coli (E. coli). The resulting SNFs also exhibit significant biofilm dispersion and a decrease in biomass production. The combination of robust photosensitizer SNFs with nitric oxide-releasing capabilities is dynamic in its ability to target pathogenic infections while remaining nontoxic to mammalian cells. The engineered SNFs have enormous potential for treating and managing microbial infections.
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Affiliation(s)
- Anil Kumar
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Arnab Mondal
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Megan E Douglass
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Divine J Francis
- Department of Chemistry, University of Georgia, Athens, GA 30602, United States
| | - Mark R Garren
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Lori M Estes Bright
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Sama Ghalei
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Jin Xie
- Department of Chemistry, University of Georgia, Athens, GA 30602, United States
| | - Elizabeth J Brisbois
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States
| | - Hitesh Handa
- School of Chemical Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, United States.
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17
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Zanocco RP, Bresolí-Obach R, Nájera F, Pérez-Inestrosa E, Zanocco AL, Lemp E, Nonell S. NanoFN10: A High-Contrast Turn-On Fluorescence Nanoprobe for Multiphoton Singlet Oxygen Imaging. SENSORS (BASEL, SWITZERLAND) 2023; 23:4603. [PMID: 37430516 DOI: 10.3390/s23104603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/19/2023] [Accepted: 05/06/2023] [Indexed: 07/12/2023]
Abstract
An "off-on" fluorescent nanoprobe for near-infrared multiphoton imaging of singlet oxygen has been developed. The nanoprobe comprises a naphthoxazole fluorescent unit and a singlet-oxygen-sensitive furan derivative attached to the surface of mesoporous silica nanoparticles. In solution, the fluorescence of the nanoprobe increases upon reaction with singlet oxygen both under one- and multiphoton excitation, with fluorescence enhancements up to 180-fold. The nanoprobe can be readily internalized by macrophage cells and is capable of imaging intracellular singlet oxygen under multiphoton excitation.
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Affiliation(s)
- Renzo P Zanocco
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8330015, Chile
| | - Roger Bresolí-Obach
- Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - Francisco Nájera
- Departamento de Química Orgánica, Universidad de Málaga, Campus Teatinos s/n, 29071 Málaga, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA, Plataforma Bionand, Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Departamento de Química Orgánica, Universidad de Málaga, Campus Teatinos s/n, 29071 Málaga, Spain
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA, Plataforma Bionand, Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Antonio L Zanocco
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8330015, Chile
| | - Else Lemp
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8330015, Chile
| | - Santi Nonell
- Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
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18
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Nam-Cha SH, Domínguez-Jurado E, Tinoco-Valencia SL, Pérez-Tanoira R, Morata-Moreno N, Alfaro-Ruiza R, Lara-Sánchez A, Esteban J, Luján R, Alonso-Moreno C, Seguí P, Ocaña A, Gónzalez ÁL, Aguilera-Correa JJ, Pérez-Martínez FC, Alarcón MM. Synthesis, characterization, and antibacterial activities of a heteroscorpionate derivative platinum complex against methicillin-resistant Staphylococcus aureus. Front Cell Infect Microbiol 2023; 13:1100947. [PMID: 37051297 PMCID: PMC10083354 DOI: 10.3389/fcimb.2023.1100947] [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: 11/17/2022] [Accepted: 03/10/2023] [Indexed: 03/29/2023] Open
Abstract
Staphylococcus aureus is one of the species with the greatest clinical importance and greatest impact on public health. In fact, methicillin-resistant S. aureus (MRSA) is considered a pandemic pathogen, being essential to develop effective medicines and combat its rapid spread. This study aimed to foster the translation of clinical research outcomes based on metallodrugs into clinical practice for the treatment of MRSA. Bearing in mind the promising anti-Gram-positive effect of the heteroscorpionate ligand 1,1’-(2-(4-isopropylphenyl)ethane-1,1-diyl)bis(3,5-dimethyl-1H-pyrazole) (2P), we propose the coordination of this compound to platinum as a clinical strategy with the ultimate aim of overcoming resistance in the treatment of MRSA. Therefore, the novel metallodrug 2P-Pt were synthetized, fully characterized and its antibacterial effect against the planktonic and biofilm state of S. aureus evaluated. In this sense, three different strains of S. aureus were studied, one collection strain of S. aureus sensitive to methicillin and two clinical MRSA strains. To appraise the antibacterial activity, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), minimum biofilm inhibitory concentration (MBIC), and minimum biofilm eradication concentration (MBEC) were determined. Moreover, successful outcomes on the development of biofilm in a wound-like medium were obtained. The mechanism of action for 2P-Pt was proposed by measuring the MIC and MBC with EDTA (cation mediated mechanism) and DMSO (exogenous oxidative stress mechanism). Moreover, to shed light on the plausible antistaphylococcal mechanism of this novel platinum agent, additional experiments using transmission electron microscopy were carried out. 2P-Pt inhibited the growth and eradicated the three strains evaluated in the planktonic state. Another point worth stressing is the inhibition in the growth of MRSA biofilm even in a wounded medium. The results of this work support this novel agent as a promising therapeutic alternative for preventing infections caused by MRSA.
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Affiliation(s)
- Syong H. Nam-Cha
- Department of Pathology, Complejo Hospitalario Universitario, Albacete, Spain
| | - Elena Domínguez-Jurado
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia, Universidad de Castilla-La Mancha, Albacete, Spain
- Unidad nanoDrug, Centro Regional de Investigación Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain
| | | | - Ramón Pérez-Tanoira
- Clinical Microbiology Department, Hospital Universitario Príncipe de Asturias, Madrid, Spain
- Biomedicine y Biotechnology Department, School of Medicine, University of Alcalá de Henares, Alcalá de Henares, Spain
| | - Noelia Morata-Moreno
- Department of Otorrinolaringology, Complejo Hospitalario Universitario, Albacete, Spain
| | - Rocío Alfaro-Ruiza
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, Albacete, Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
- CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Luján
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, Albacete, Spain
| | - Carlos Alonso-Moreno
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia, Universidad de Castilla-La Mancha, Albacete, Spain
- Unidad nanoDrug, Centro Regional de Investigación Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Pedro Seguí
- Department of Otorrinolaringology, Complejo Hospitalario Universitario, Albacete, Spain
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, Albacete, Spain
| | - Alberto Ocaña
- Experimental Therapeutics Unit, Hospital Clínico San Carlos, IdISSC and CIBERONC, Madrid, Spain
- Translational Research Unit, Albacete University Hospital, Albacete, Spain
| | | | - John J. Aguilera-Correa
- Clinical Microbiology Department, IIS-Fundacion Jimenez Diaz-UAM, Madrid, Spain
- CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: John J. Aguilera-Correa, ; Francisco C. Pérez-Martínez,
| | - Francisco C. Pérez-Martínez
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, Albacete, Spain
- Department of Nursing, University of Castilla-La Mancha, Albacete, Spain
- *Correspondence: John J. Aguilera-Correa, ; Francisco C. Pérez-Martínez,
| | - Milagros Molina Alarcón
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, Albacete, Spain
- Department of Nursing, University of Castilla-La Mancha, Albacete, Spain
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19
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Murotomi K, Umeno A, Shichiri M, Tanito M, Yoshida Y. Significance of Singlet Oxygen Molecule in Pathologies. Int J Mol Sci 2023; 24:ijms24032739. [PMID: 36769060 PMCID: PMC9917472 DOI: 10.3390/ijms24032739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/22/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Reactive oxygen species, including singlet oxygen, play an important role in the onset and progression of disease, as well as in aging. Singlet oxygen can be formed non-enzymatically by chemical, photochemical, and electron transfer reactions, or as a byproduct of endogenous enzymatic reactions in phagocytosis during inflammation. The imbalance of antioxidant enzymes and antioxidant networks with the generation of singlet oxygen increases oxidative stress, resulting in the undesirable oxidation and modification of biomolecules, such as proteins, DNA, and lipids. This review describes the molecular mechanisms of singlet oxygen production in vivo and methods for the evaluation of damage induced by singlet oxygen. The involvement of singlet oxygen in the pathogenesis of skin and eye diseases is also discussed from the biomolecular perspective. We also present our findings on lipid oxidation products derived from singlet oxygen-mediated oxidation in glaucoma, early diabetes patients, and a mouse model of bronchial asthma. Even in these diseases, oxidation products due to singlet oxygen have not been measured clinically. This review discusses their potential as biomarkers for diagnosis. Recent developments in singlet oxygen scavengers such as carotenoids, which can be utilized to prevent the onset and progression of disease, are also described.
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Affiliation(s)
- Kazutoshi Murotomi
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan
| | - Aya Umeno
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo 693-8501, Japan
| | - Mototada Shichiri
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda 563-8577, Japan
- Correspondence: ; Tel.: +81-72-751-8234
| | - Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo 693-8501, Japan
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20
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Added Value of Scintillating Element in Cerenkov-Induced Photodynamic Therapy. Pharmaceuticals (Basel) 2023. [DOI: 10.3390/ph16020143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Cerenkov-induced photodynamic therapy (CR-PDT) with the use of Gallium-68 (68Ga) as an unsealed radioactive source has been proposed as an alternative strategy to X-ray-induced photodynamic therapy (X-PDT). This new strategy still aims to produce a photodynamic effect with the use of nanoparticles, namely, AGuIX. Recently, we replaced Gd from the AGuIX@ platform with Terbium (Tb) as a nanoscintillator and added 5-(4-carboxyphenyl succinimide ester)-10,15,20-triphenylporphyrin (P1) as a photosensitizer (referred to as AGuIX@Tb-P1). Although Cerenkov luminescence from 68Ga positrons is involved in nanoscintillator and photosensitizer activation, the cytotoxic effect obtained by PDT remains controversial. Herein, we tested whether free 68Ga could substitute X-rays of X-PDT to obtain a cytotoxic phototherapeutic effect. Results were compared with those obtained with AGuIX@Gd-P1 nanoparticles. We showed, by Monte Carlo simulations, the contribution of Tb scintillation in P1 activation by an energy transfer between Tb and P1 after Cerenkov radiation, compared to the Gd-based nanoparticles. We confirmed the involvement of the type II PDT reaction during 68Ga-mediated Cerenkov luminescence, id est, the transfer of photon to AGuIX@Tb-P1 which, in turn, generated P1-mediated singlet oxygen. The effect of 68Ga on cell survival was studied by clonogenic assays using human glioblastoma U-251 MG cells. Exposure of pre-treated cells with AGuIX@Tb-P1 to 68Ga resulted in the decrease in cell clone formation, unlike AGuIX@Gd-P1. We conclude that CR-PDT could be an alternative of X-PDT.
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21
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Kim C, Kim JG, Kim KY. Anti- Candida Potential of Sclareol in Inhibiting Growth, Biofilm Formation, and Yeast-Hyphal Transition. J Fungi (Basel) 2023; 9:jof9010098. [PMID: 36675919 PMCID: PMC9862543 DOI: 10.3390/jof9010098] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Even though Candida albicans commonly colonizes on most mucosal surfaces including the vaginal and gastrointestinal tract, it can cause candidiasis as an opportunistic infectious fungus. The emergence of resistant Candida strains and the toxicity of anti-fungal agents have encouraged the development of new classes of potential anti-fungal agents. Sclareol, a labdane-type diterpene, showed anti-Candida activity with a minimum inhibitory concentration of 50 μg/mL in 24 h based on a microdilution anti-fungal susceptibility test. Cell membrane permeability with propidium iodide staining and mitochondrial membrane potential with JC-1 staining were increased in C. albicans by treatment of sclareol. Sclareol also suppressed the hyphal formation of C. albicans in both liquid and solid media, and reduced biofilm formation. Taken together, sclareol induces an apoptosis-like cell death against Candida spp. and suppressed biofilm and hyphal formation in C. albicans. Sclareol is of high interest as a novel anti-fungal agent and anti-virulence factor.
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Affiliation(s)
- Chaerim Kim
- Department of Life Science, Gachon University, Seongnam 13120, Gyeonggi-do, Republic of Korea
| | - Jae-Goo Kim
- Graduate School of Biotechnology, Kyung Hee University, Yingin 17104, Gyeonggi-do, Republic of Korea
| | - Ki-Young Kim
- Graduate School of Biotechnology, Kyung Hee University, Yingin 17104, Gyeonggi-do, Republic of Korea
- College of Life Science, Kyung Hee University, Yongin 17104, Gyeonggi-do, Republic of Korea
- Correspondence: ; Tel.: +82-312012633
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22
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Ara T, Ono S, Hasan M, Ozono M, Kogure K. Protective effects of liposomes encapsulating ferulic acid against CCl 4-induced oxidative liver damage in vivo rat model. J Clin Biochem Nutr 2023; 72:46-53. [PMID: 36777075 PMCID: PMC9899917 DOI: 10.3164/jcbn.22-37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/02/2022] [Indexed: 01/01/2023] Open
Abstract
Antioxidants are useful for the treatment of oxidative stress mediated liver damage. A naturally occurring antioxidant γ-oryzanol is rapidly hydrolyzed to its active hydrophobic metabolite, ferulic acid, inside the body. Limitations associated with the hydrophobicity of ferulic acid can be overcome by encapsulating in a liposomal formulation. As intravenously administered nanoparticles (including liposomes) can effectively reach the liver, such systems may be suitable drug delivery carriers to treat liver injury. In this study, we prepared a liposomal formulation of ferulic acid (ferulic-lipo) and examined its effects on liver damage induced by CCl4. Ferulic-lipo were ~100 nm in size and drug encapsulation efficiency was about 92%. Ferulic-lipo showed potent scavenging efficacy against hydroxyl radical compared to α-tocopherol liposomes. Ferulic-lipo significantly prevented CCl4-mediated cytotoxicity in human hepatocarcinoma cells. Furthermore, intravenous administration of ferulic-lipo significantly reduced alanine aminotransferase and aspartate amino transferase levels in a rat model of liver injury. CCl4-mediated reactive oxygen species generation in liver was also reduced by intravenous administration of ferulic-lipo. Hepatoprotective effects of ferulic-lipo were demonstrated by histological observation of CCl4-induced liver tissue damage. Therefore, ferulic-lipo exhibit potent antioxidative capacity and were suggested to be an effective formulation for prevention of oxidative damage of liver tissue.
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Affiliation(s)
- Tabassum Ara
- Graduate School of Pharmaceutical Sciences, Tokushima University, Shomachi 1, Tokushima 770-8505, Japan
| | - Satoko Ono
- Graduate School of Pharmaceutical Sciences, Tokushima University, Shomachi 1, Tokushima 770-8505, Japan
| | - Mahadi Hasan
- Research Centre for Experimental Modeling of Human Diseases, Kanazawa University, Takaramachi 13-1, Kanazawa 920-8640, Japan
| | - Mizune Ozono
- Graduate School of Biomedical Sciences, Tokushima University, Shomachi 1, Tokushima 770-8505, Japan
| | - Kentaro Kogure
- Graduate School of Biomedical Sciences, Tokushima University, Shomachi 1, Tokushima 770-8505, Japan,To whom correspondence should be addressed. E-mail:
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23
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Nyssen P, Franck T, Serteyn D, Mouithys-Mickalad A, Hoebeke M. Propofol metabolites and derivatives inhibit the oxidant activities of neutrophils and myeloperoxidase. Free Radic Biol Med 2022; 191:164-175. [PMID: 36064069 DOI: 10.1016/j.freeradbiomed.2022.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/10/2022] [Accepted: 08/29/2022] [Indexed: 10/14/2022]
Abstract
In previous studies, propofol has shown immunomodulatory abilities on various in vitro models. As this anesthetic molecule is extensively used in intensive care units, its anti-inflammatory properties present a great interest for the treatment of inflammatory disorders like the systemic inflammatory response syndrome. In addition to its inhibition abilities on important neutrophils mechanisms (chemotaxis, reactive oxygen species (ROS) production, Neutrophil Extracellular Traps (NETs) formation, …), our group has shown that propofol is also a reversible inhibitor of the oxidant myeloperoxidase (MPO) activity. Propofol being subject to rapid metabolism, its derivatives could contribute to its anti-inflammatory action. First, propofol-β-glucuronide (PPFG), 2,6-diisopropyl-1,4-p-benzoquinone (PPFQ) and 3,5,3',5'-tetraisopropyl-(4,4')-diphenoquinone (PPFDQ) were compared on their superoxide (O2.-) scavenging properties and more importantly on their inhibitory action on the O2.- release by activated neutrophils using EPR spectroscopy and chemiluminescence assays. PPFQ and PPFDQ are potent superoxide scavengers and also inhibit the release of ROS by neutrophils. An Enzyme-Linked Immunosorbent Assay (ELISA) has also highlighted the ability of both molecules to significantly decrease the MPO degranulation process of neutrophils. Fluorescence enzymatic assays helped to investigate the action of the propofol derivatives on the peroxidase and chlorination activities of MPO. In addition, using SIEFED (Specific Immunological Extraction Followed by Enzyme Detection) assays and docking, we demonstrated the concentration-dependent inhibitory action of PPFQ and its ability to bind to the enzyme active site while PPFG presented a much weaker inhibitory action. Overall, the oxidation derivatives and metabolites PPFQ and PPFDQ can, at physiological concentrations, perpetuate the immunomodulatory action of propofol by acting on the oxidant response of PMN and MPO.
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Affiliation(s)
- Pauline Nyssen
- Biomedical Spectroscopy Laboratory, Department of Physics, CESAM, University of Liège, Building B5a, Quartier Agora, Allée Du 6 Août, 19, 4000 Liège (Sart-Tilman), Belgium.
| | - Thierry Franck
- CORD, Department of Chemistry, CIRM, University of Liège, Building B6a, Quartier Agora, Allée Du 6 Août, 13, 4000 Liège (Sart-Tilman), Belgium
| | - Didier Serteyn
- CORD, Department of Chemistry, CIRM, University of Liège, Building B6a, Quartier Agora, Allée Du 6 Août, 13, 4000 Liège (Sart-Tilman), Belgium; Department of Clinical Sciences, Anesthesiology and Equine Surgery, Faculty of Veterinary Medicine, University of Liège, Building B41, Quartier Vallée 2, Avenue de Cureghem 5, 4000 Liège (Sart-Tilman), Belgium
| | - Ange Mouithys-Mickalad
- CORD, Department of Chemistry, CIRM, University of Liège, Building B6a, Quartier Agora, Allée Du 6 Août, 13, 4000 Liège (Sart-Tilman), Belgium
| | - Maryse Hoebeke
- Biomedical Spectroscopy Laboratory, Department of Physics, CESAM, University of Liège, Building B5a, Quartier Agora, Allée Du 6 Août, 19, 4000 Liège (Sart-Tilman), Belgium
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24
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Sasidharan S, Nishanth KS, Nair HJ. Ethanolic extract of Caesalpinia bonduc seeds triggers yeast metacaspase-dependent apoptotic pathway mediated by mitochondrial dysfunction through enhanced production of calcium and reactive oxygen species (ROS) in Candida albicans. Front Cell Infect Microbiol 2022; 12:970688. [PMID: 36093184 PMCID: PMC9449877 DOI: 10.3389/fcimb.2022.970688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Candida albicans is a widespread disease-causing yeast affecting humankind, which leads to urinary tract, cutaneous and various lethal systemic infections. As this infection rate steadily increases, it is becoming a significant public health problem. Recently, Caesalpinia bonduc has received much attention from researchers due to its diverse pharmacological properties, including antimicrobial effects. Accordingly, we first planned to explore the in-vitro anticandidal potential of three extracts obtained from C. bonduc seeds against four Candida species. Initially, the anticandidal activity of the seed extracts was checked by the microdilution technique. Out of three seed extracts tested, ethanolic extract of C. bonduc seed (EECS) recorded the best activity against C. albicans. Hence, we next aimed to find out the anticandidal mechanism of EECS in C. albicans. The liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) analysis showed that the major compounds present in the EECS were tocopherols, fucosterol, linoleic acid, β-amyrin, β-sitosterol, campesterol, cassane furanoditerpene, Norcassane furanoditerpene and other diterpenes. To evaluate the cell death mechanism in C. albicans, a series of parameters related to apoptosis, viz., reactive oxygen species (ROS) production, membrane permeability, mitochondrial membrane potential, release of cytochrome c, DNA fragmentation, nuclear condensation, increased Ca2+ level in cytosolic and mitochondrial and activation of metacaspase, were analyzed. The results showed that EECS treatment resulted in the elevation of ROS, which leads to plasma membrane permeability in C. albicans. Annexin V staining further confirms the early stage of apoptosis through phosphatidylserine (PS) externalization. We further inspected the late apoptotic stage using DAPI and TUNEL staining assays. From the results, it can be concluded that EECS triggered mitochondrial dysfunction by releasing high levels of ROS, cytochrome c and Ca2+resulting in the activation of metacaspase mediated apoptosis, which is the central mechanism behind the cell death of C. albicans. Finally, a Galleria mellonella-C. albicans infection system was employed to assess the in-vivo potential of EECS. The outcomes displayed that the EECS considerably enhanced the recovery rate of G. mellonella larvae from infection after the treatment. Additionally, EECS also recorded low hemolytic activity. This study thus spotlights the anticandidal potential and mechanism of action of EECS against C. albicans and thus delivers a promising treatment approach to manage C. albicans infection in the future.
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25
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Wu Klingler W, Giger N, Schneider L, Babu V, König C, Spielmann P, Wenger RH, Ferrari S, Spingler B. Low-Dose Near-Infrared Light-Activated Mitochondria-Targeting Photosensitizers for PDT Cancer Therapy. Int J Mol Sci 2022; 23:ijms23179525. [PMID: 36076920 PMCID: PMC9455738 DOI: 10.3390/ijms23179525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/20/2022] Open
Abstract
Phthalocyanines (Pcs) are promising candidates for photodynamic therapy (PDT) due to their absorption in the phototherapeutic window. However, the highly aromatic Pc core leads to undesired aggregation and decreased reactive oxygen species (ROS) production. Therefore, short PEG chain functionalized A3B type asymmetric Pc photosensitizers (PSs) were designed in order to decrease aggregation and increase the aqueous solubility. Here we report the synthesis, characterization, optical properties, cellular localization, and cytotoxicity of three novel Pc-based agents (LC31, MLC31, and DMLC31Pt). The stepwise functionalization of the peripheral moieties has a strong effect on the distribution coefficient (logP), cellular uptake, and localization, as well as photocytotoxicity. Additional experiments have revealed that the presence of the malonic ester moiety in the reported agent series is indispensable in order to induce photocytotoxicity. The best-performing agent, MLC31, showed mitochondrial targeting and an impressive phototoxic index (p.i.) of 748 in the cisplatin-resistant A2780/CP70 cell line, after a low-dose irradiation of 6.95 J/cm2. This is the result of a high photocytotoxicity (IC50 = 157 nM) upon irradiation with near-infrared (NIR) light, and virtually no toxicity in the dark (IC50 = 117 μM). Photocytotoxicity was subsequently determined under hypoxic conditions. Additionally, a preliminarily pathway investigation of the mitochondrial membrane potential (MMP) disruption and induction of apoptosis by MLC31 was carried out. Our results underline how agent design involving both hydrophilic and lipophilic peripheral groups may serve as an effective way to improve the PDT efficiency of highly aromatic PSs for NIR light-mediated cancer therapy.
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Affiliation(s)
- Wenyu Wu Klingler
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
- Laboratory for Advanced Fibers, Empa Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Nadine Giger
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Lukas Schneider
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Vipin Babu
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Christiane König
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Patrick Spielmann
- Institute of Physiology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Roland H. Wenger
- Institute of Physiology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Stefano Ferrari
- Institute of Molecular Cancer Research, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
- Correspondence: (S.F.); (B.S.); Tel.: +41-44-635-46-56 (B.S.)
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
- Correspondence: (S.F.); (B.S.); Tel.: +41-44-635-46-56 (B.S.)
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26
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Ma W, Zhao L, Johnson ET, Xie Y, Zhang M. Natural food flavour (E)-2-hexenal, a potential antifungal agent, induces mitochondria-mediated apoptosis in Aspergillus flavus conidia via a ROS-dependent pathway. Int J Food Microbiol 2022; 370:109633. [PMID: 35313251 DOI: 10.1016/j.ijfoodmicro.2022.109633] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 02/19/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022]
Abstract
Natural food flavour (E)-2-hexenal, a green leaf volatile, exhibits potent antifungal activity on Aspergillus flavus, but its antifungal mechanism has not been fully elucidated. In this study, we evaluated (E)-2-hexenal-induced apoptosis in A. flavus conidia and explored the underlying mechanisms of action. Evidence of apoptosis in A. flavus conidia were investigated by methods including fluorescent staining, flow cytometry, confocal laser scanning microscope, and spectral analysis. Results indicated that 4.0 μL/mL (minimum fungicidal concentration, MFC) of (E)-2-hexenal application induced early markers of apoptotic cell death in A. flavus conidia with a rate of 38.4% after 6 h exposure. Meanwhile, typical hallmarks of apoptosis, such as decreased mitochondrial membrane potential (MMP), activated metacaspase activity, fragmented DNA, mitochondrial permeability transition pore (MPTP) opening and cytochrome c (Cyt C) release from mitochondria to the cytosol were also confirmed. Furthermore, intracellular ATP levels were reduced by 63.3 ± 3.6% and reactive oxygen species (ROS) positive cells increased by 31.1 ± 3.1% during A. flavus apoptosis induced by (E)-2-hexenal. l-Cysteine (Cys), an antioxidant, could strongly block the excess ROS generation caused by (E)-2-hexenal, which correspondingly resulted in a significant inhibition of MPTP opening and decrease of apoptosis in A. flavus, indicating that ROS palys a pivotal role in (E)-2-hexenal-induced apoptosis. These results suggest that (E)-2-hexenal exerts its antifungal effect on A. flavus conidia via a ROS-dependent mitochondrial apoptotic pathway.
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Affiliation(s)
- Weibin Ma
- Department of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou 450001, China.
| | - Luling Zhao
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou 450001, China
| | - Eric T Johnson
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Crop BioProtection Research Unit, 1815 N. University St., Peoria, IL 61604, USA
| | - Yanli Xie
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou 450001, China
| | - Mingming Zhang
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou 450001, China
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Zwiehoff S, Johny J, Behrends C, Landmann A, Mentzel F, Bäumer C, Kröninger K, Rehbock C, Timmermann B, Barcikowski S. Enhancement of Proton Therapy Efficiency by Noble Metal Nanoparticles Is Driven by the Number and Chemical Activity of Surface Atoms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106383. [PMID: 34921500 DOI: 10.1002/smll.202106383] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/18/2021] [Indexed: 06/14/2023]
Abstract
Proton-based radiotherapy is a modern technique for the treatment of solid tumors with significantly reduced side effects to adjacent tissues. Biocompatible nanoparticles (NPs) with high atomic numbers are known to serve as sensitizers and to enhance treatment efficacy, which is commonly believed to be attributed to the generation of reactive oxygen species (ROS). However, little systematic knowledge is available on how either physical effects due to secondary electron generation or the particle surface chemistry affect ROS production. Thereto, ligand-free colloidal platinum (Pt) and gold (Au) NPs with well-controlled particle size distributions and defined total surface area are proton-irradiated. A fluorescence-based assay is developed to monitor the formation of ROS using terephthalic acid as a cross-effect-free dye. The findings indicate that proton irradiation (PI)-induced ROS formation sensitized by noble metal NPs is driven by the total available particle surface area rather than particle size or mass. Furthermore, a distinctive material effect with Pt being more active than Au is observed which clearly indicates that the chemical reactivity of the NP surface is a main contributor to ROS generation upon PI. These results pave the way towards an in-depth understanding of the NP-induced sensitizing effects upon PI and hence a well-controlled enhanced therapy.
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Affiliation(s)
- Sandra Zwiehoff
- University of Duisburg-Essen, Technical Chemistry I, (CENIDE), (ZMB), 45141, Essen, Germany
| | - Jacob Johny
- University of Duisburg-Essen, Technical Chemistry I, (CENIDE), (ZMB), 45141, Essen, Germany
| | - Carina Behrends
- TU Dortmund University, Department of Physics, 44227, Dortmund, Germany
- West German Proton Therapy Centre Essen (WPE), West German Cancer Centre (WTZ), University Hospital Essen, 45147, Essen, Germany
| | - Alina Landmann
- TU Dortmund University, Department of Physics, 44227, Dortmund, Germany
| | - Florian Mentzel
- TU Dortmund University, Department of Physics, 44227, Dortmund, Germany
| | - Christian Bäumer
- TU Dortmund University, Department of Physics, 44227, Dortmund, Germany
- West German Proton Therapy Centre Essen (WPE), West German Cancer Centre (WTZ), University Hospital Essen, 45147, Essen, Germany
- German Cancer Consortium (DKTK), 69120, Heidelberg, Germany
| | - Kevin Kröninger
- TU Dortmund University, Department of Physics, 44227, Dortmund, Germany
| | - Christoph Rehbock
- University of Duisburg-Essen, Technical Chemistry I, (CENIDE), (ZMB), 45141, Essen, Germany
| | - Beate Timmermann
- West German Proton Therapy Centre Essen (WPE), West German Cancer Centre (WTZ), University Hospital Essen, 45147, Essen, Germany
- German Cancer Consortium (DKTK), 69120, Heidelberg, Germany
- Faculty of Medicine, University of Duisburg-Essen, Department of Particle Therapy, University Hospital Essen, 45147, Essen, Germany
| | - Stephan Barcikowski
- University of Duisburg-Essen, Technical Chemistry I, (CENIDE), (ZMB), 45141, Essen, Germany
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Nyssen P, Maho A, Malempre R, Matagne A, Mouithys-Mickalad A, Hoebeke M. Propofol inhibits the myeloperoxidase activity by acting as substrate through a redox process. Biochim Biophys Acta Gen Subj 2022; 1866:130100. [PMID: 35150774 DOI: 10.1016/j.bbagen.2022.130100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/01/2022] [Accepted: 02/01/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Propofol (2,6-diisopropylphenol) is frequently used as intravenous anesthetic agent, especially in its injectable form (Diprivan), to initiate and maintain sedative state during surgery or in intensive care units. Numerous studies have reported the antioxidant and anti-inflammatory effect of propofol. The oxidant enzyme myeloperoxidase (MPO), released from activated neutrophils, plays a key role in host defense. An increase of the circulating MPO concentration has been observed in patients admitted in intensive care unit and presenting a systemic inflammatory response related to septic shock or trauma. METHODS This study investigates the immunomodulatory action of propofol and Diprivan as inhibitor of the oxidant activity of MPO. The understanding of the redox action mechanism of propofol and Diprivan on the myeloperoxidase chlorination and peroxidase activities has been refined using the combination of fluorescence and absorption spectroscopies with docking and cyclic voltammetry. RESULTS Propofol acts as a reversible MPO inhibitor. The molecule interacts as a reducing substrate in the peroxidase cycle and promotes the accumulation of compound II. At acidic pH (5.5), propofol and Diprivan do not inhibit the chlorination activity, but their action increases at physiological pH (7.4). The main inhibitory action of Diprivan could be attributed to its HOCl scavenging property. GENERAL SIGNIFICANCE Propofol can act as a reversible MPO inhibitor at clinical concentrations. This property could, in addition to other previously proven anti-inflammatory actions, induce an immunomodulatory action, beneficial during clinical use, particularly in the treatment of systemic inflammation response syndrome.
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Affiliation(s)
- P Nyssen
- Biomedical Spectroscopy Laboratory, Department of Physics, CESAM, University of Liège, Building B5a, Quartier Agora, Allée du 6 Août, 19, Sart-Tilman, 4000 Liège, Belgium.
| | - A Maho
- Greenmat, Department of Chemistry, CESAM, University of Liège, Building B6c, Quartier Agora, Allée du 6 Août, 19, Sart-Tilman, 4000 Liège, Belgium
| | - R Malempre
- Laboratory of Enzymology and Protein folding, Centre for Protein Engineering, InBioS, University of Liège, Building B6a, Quartier Agora, Allée du 6 Août, 19, Sart-Tilman, 4000 Liège, Belgium
| | - A Matagne
- Laboratory of Enzymology and Protein folding, Centre for Protein Engineering, InBioS, University of Liège, Building B6a, Quartier Agora, Allée du 6 Août, 19, Sart-Tilman, 4000 Liège, Belgium
| | - A Mouithys-Mickalad
- CORD, Department of Chemistry, CIRM, University of Liège, Building B6a, Quartier Agora, Allée du 6 Août, 13, Sart-Tilman, 4000 Liège, Belgium
| | - M Hoebeke
- Biomedical Spectroscopy Laboratory, Department of Physics, CESAM, University of Liège, Building B5a, Quartier Agora, Allée du 6 Août, 19, Sart-Tilman, 4000 Liège, Belgium
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Zuo W, Chen W, Liu J, Huang S, Chen L, Liu Q, Liu N, Jin Q, Li Y, Wang P, Zhu X. Macrophage-Mimic Hollow Mesoporous Fe-Based Nanocatalysts for Self-Amplified Chemodynamic Therapy and Metastasis Inhibition via Tumor Microenvironment Remodeling. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5053-5065. [PMID: 35040616 DOI: 10.1021/acsami.1c22432] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Fe-based nanomaterials with Fenton reaction activity are promising for tumor-specific chemodynamic therapy (CDT). However, most of the nanomaterials suffer from low catalytic efficiency due to its insufficient active site exposure and the relatively high tumor intracellular pH, which greatly impede its clinical application. Herein, macrophage membrane-camouflaged carbonic anhydrase IX inhibitor (CAI)-loaded hollow mesoporous ferric oxide (HMFe) nanocatalysts are designed to remodel the tumor microenvironment with decreased intracellular pH for self-amplified CDT. The HMFe not only serves as a Fenton agent with high active-atom exposure to enhance CDT but also provides hollow cavity for CAI loading. Meanwhile, the macrophage membrane-camouflaging endows the nanocatalysts with immune evading capability and improves tumoritropic accumulation by recognizing tumor endothelium and cancer cells through α4/VCAM-1 interaction. Once internalized by tumor cells, the CAI could be specifically released, which can not only inhibit CA IX to induce intracellular H+ accumulation for accelerating the Fenton reaction but also could prevent tumor metastasis because of the insufficient H+ formation outside cells for tumor extracellular matrix degradation. In addition, the HMFe can be employed to highly efficient magnetic resonance imaging to real-time monitor the agents' bio-distribution and treatment progress. Both in vitro and in vivo results well demonstrated that the nanocatalysts could realize self-amplified CDT and breast cancer metastasis inhibition via tumor microenvironment remodeling, which also provides a promising paradigm for improving CDT and antimetastatic treatment.
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Affiliation(s)
- Wenbao Zuo
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P.R. China
| | - Weibin Chen
- School of Medicine, Xiamen University, Xiamen 361102, P.R. China
| | - Jinxue Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P.R. China
| | - Shuying Huang
- School of Medicine, Xiamen University, Xiamen 361102, P.R. China
| | - Luping Chen
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen 518000, P.R. China
| | - Qingna Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P.R. China
| | - Nian Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P.R. China
| | - Quanyi Jin
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P.R. China
| | - Yang Li
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Peiyuan Wang
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Xuan Zhu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P.R. China
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Otvagin VF, Kuzmina NS, Kudriashova ES, Nyuchev AV, Gavryushin AE, Fedorov AY. Conjugates of Porphyrinoid-Based Photosensitizers with Cytotoxic Drugs: Current Progress and Future Directions toward Selective Photodynamic Therapy. J Med Chem 2022; 65:1695-1734. [DOI: 10.1021/acs.jmedchem.1c01953] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Vasilii F. Otvagin
- Lobachevsky State University of Nizhny Novgorod, Gagarina Avenue 23, Nizhny Novgorod 603950, Russian Federation
| | - Natalia S. Kuzmina
- Lobachevsky State University of Nizhny Novgorod, Gagarina Avenue 23, Nizhny Novgorod 603950, Russian Federation
| | - Ekaterina S. Kudriashova
- Lobachevsky State University of Nizhny Novgorod, Gagarina Avenue 23, Nizhny Novgorod 603950, Russian Federation
| | - Alexander V. Nyuchev
- Lobachevsky State University of Nizhny Novgorod, Gagarina Avenue 23, Nizhny Novgorod 603950, Russian Federation
| | | | - Alexey Yu. Fedorov
- Lobachevsky State University of Nizhny Novgorod, Gagarina Avenue 23, Nizhny Novgorod 603950, Russian Federation
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Hipper E, Blech M, Hinderberger D, Garidel P, Kaiser W. Photo-Oxidation of Therapeutic Protein Formulations: From Radical Formation to Analytical Techniques. Pharmaceutics 2021; 14:72. [PMID: 35056968 PMCID: PMC8779573 DOI: 10.3390/pharmaceutics14010072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/09/2021] [Accepted: 12/14/2021] [Indexed: 12/25/2022] Open
Abstract
UV and ambient light-induced modifications and related degradation of therapeutic proteins are observed during manufacturing and storage. Therefore, to ensure product quality, protein formulations need to be analyzed with respect to photo-degradation processes and eventually protected from light exposure. This task usually demands the application and combination of various analytical methods. This review addresses analytical aspects of investigating photo-oxidation products and related mediators such as reactive oxygen species generated via UV and ambient light with well-established and novel techniques.
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Affiliation(s)
- Elena Hipper
- Institute of Chemistry, Martin-Luther-Universität Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany; (E.H.); (D.H.)
| | - Michaela Blech
- Boehringer Ingelheim Pharma GmbH & Co. KG, Innovation Unit, PDB, Birkendorfer Strasse 65, 88397 Biberach an der Riss, Germany;
| | - Dariush Hinderberger
- Institute of Chemistry, Martin-Luther-Universität Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany; (E.H.); (D.H.)
| | - Patrick Garidel
- Boehringer Ingelheim Pharma GmbH & Co. KG, Innovation Unit, PDB, Birkendorfer Strasse 65, 88397 Biberach an der Riss, Germany;
| | - Wolfgang Kaiser
- Boehringer Ingelheim Pharma GmbH & Co. KG, Innovation Unit, PDB, Birkendorfer Strasse 65, 88397 Biberach an der Riss, Germany;
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Shi YG, Zhu CM, Li DH, Shi ZY, Gu Q, Chen YW, Wang JQ, Ettelaie R, Chen JS. New Horizons in Microbiological Food Safety: Ultraefficient Photodynamic Inactivation Based on a Gallic Acid Derivative and UV-A Light and Its Application with Electrospun Cyclodextrin Nanofibers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14961-14974. [PMID: 34843236 DOI: 10.1021/acs.jafc.1c04827] [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: 06/13/2023]
Abstract
An excellent bactericidal effect of octyl gallate (OG)-mediated photodynamic inactivation (PDI) against foodborne pathogens (Escherichia coli and Staphylococcus aureus) was evaluated in relation to the mode of action. UV-A irradiation (wavelength, 365 nm; irradiance, 8.254 ± 0.18 mW/cm2) of the bacterial suspension containing 0.15 mM OG could lead to a >5-log reduction of viable cell counts within 30 min for E. coli and only 5 min for S. aureus. Reactive oxygen species (ROS) formation was considered the main reason for the bactericidal effect of OG + UV-A light treatment because toxic ROS induced by OG-mediated PDI could attack the cellular wall, proteins, and DNA of microbes. Moreover, the bactericidal effect, as well as the yields of ROS, depended on OG concentrations, irradiation time, and laser output power. Furthermore, we prepared an edible photodynamic antimicrobial membrane comprising electrospun cyclodextrin nanofibers (NFs) by embedding OG. The resultant OG/HPβCD NFs (273.6 μg/mL) under UV-A irradiation for 30 min (14.58 J/cm) could cause a great reduction (>5-log) of viable bacterial counts of E. coli. The in situ photodynamic antibacterial activity of OG/HPβCD NF-based packaging was evaluated during the Chinese giant salamander storage. Overall, this research highlights the dual functionalities (antibacterial and photodynamic properties) of OG as both an antibacterial agent and photosensitizer and the effectiveness of electrospun NFs containing OG as an active antibacterial packaging material for food preservation upon UV light illumination.
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Affiliation(s)
- Yu-Gang Shi
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
| | - Chen-Min Zhu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
| | - Dong-Hui Li
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
| | - Ze-Yu Shi
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Qing Gu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
| | - Yue-Wen Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
| | - Jie-Qian Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
| | - Rammile Ettelaie
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, U.K
| | - Jian-She Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Zhejiang, Hangzhou 310035, China
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Investigation of distinct contribution of nitric oxide and each reactive oxygen species in indole-3-propionic-acid-induced apoptosis-like death in Escherichia coli. Life Sci 2021; 285:120003. [PMID: 34599936 DOI: 10.1016/j.lfs.2021.120003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/16/2021] [Accepted: 09/24/2021] [Indexed: 11/20/2022]
Abstract
AIMS Indole-3-propionic acid (IPA) is a natural product from human microbiota, exhibiting diverse biological activities. The study focused on investigating the antibacterial mode of action(s) triggered by IPA in Escherichia coli. Separate influence of nitric oxide (NO) and each reactive oxygen species, including superoxide anion (O2-), hydrogen peroxide (H2O2), hydroxyl radical (OH-), was specifically analyzed throughout the process. MAIN METHODS The generation of respective reactive oxygen species (ROS), NO, and ONOO- was conducted using flow cytometer using different dyes. Further analysis of separate influences was held based on usage of each scavenger: sodium pyruvate, thiourea, tiron, and L-NAME. Oxidative cell damage was observed through the detection of glutathione depletion and lipid peroxidation. DNA fragmentation and membrane depolarization were observed by TUNEL and DiBAC4(3) staining agent. Finally, Annexin V/PI and FITC-VAD-FMK were applied to detect apoptosis-like death. KEY FINDINGS IPA exhibited antibacterial activity in E. coli through the accumulation of ROS, NO, ONOO-, and DNA damage, eventually leading to apoptosis-like death. NO and O2- exerted the most potent influence on oxidative damage of E. coli, whereas H2O2 accounts for the least impact. Moreover, the results reveal the major contribution of ONOO- in IPA-induced apoptosis-like death in E. coli. SIGNIFICANCE This is the first study that introduces the antibacterial activity and apoptosis-like death induced by IPA and suggests the possibility of being an alternative for current antibiotics. Furthermore, the distinct influence of each ROS and NO was analyzed to investigate their contribution to oxidative damage leading to bacterial apoptosis-like death.
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Pham TC, Nguyen VN, Choi Y, Lee S, Yoon J. Recent Strategies to Develop Innovative Photosensitizers for Enhanced Photodynamic Therapy. Chem Rev 2021; 121:13454-13619. [PMID: 34582186 DOI: 10.1021/acs.chemrev.1c00381] [Citation(s) in RCA: 507] [Impact Index Per Article: 169.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review presents a robust strategy to design photosensitizers (PSs) for various species. Photodynamic therapy (PDT) is a photochemical-based treatment approach that involves the use of light combined with a light-activated chemical, referred to as a PS. Attractively, PDT is one of the alternatives to conventional cancer treatment due to its noninvasive nature, high cure rates, and low side effects. PSs play an important factor in photoinduced reactive oxygen species (ROS) generation. Although the concept of photosensitizer-based photodynamic therapy has been widely adopted for clinical trials and bioimaging, until now, to our surprise, there has been no relevant review article on rational designs of organic PSs for PDT. Furthermore, most of published review articles in PDT focused on nanomaterials and nanotechnology based on traditional PSs. Therefore, this review aimed at reporting recent strategies to develop innovative organic photosensitizers for enhanced photodynamic therapy, with each example described in detail instead of providing only a general overview, as is typically done in previous reviews of PDT, to provide intuitive, vivid, and specific insights to the readers.
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Affiliation(s)
- Thanh Chung Pham
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Van-Nghia Nguyen
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Yeonghwan Choi
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Songyi Lee
- Department of Chemistry, Pukyong National University, Busan 48513, Korea.,Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
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Interaction Insight of Pullulan-Mediated Gamma-Irradiated Silver Nanoparticle Synthesis and Its Antibacterial Activity. Polymers (Basel) 2021; 13:polym13203578. [PMID: 34685342 PMCID: PMC8538642 DOI: 10.3390/polym13203578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/07/2021] [Accepted: 10/10/2021] [Indexed: 11/25/2022] Open
Abstract
The production of pure silver nanoparticles (Ag-NPs) with unique properties remains a challenge even today. In the present study, the synthesis of silver nanoparticles (Ag-NPs) from natural pullulan (PL) was carried out using a radiation-induced method. It is known that pullulan is regarded as a microbial polysaccharide, which renders it suitable to act as a reducing and stabilizing agent during the production of Ag-NPs. Pullulan-assisted synthesis under gamma irradiation was successfully developed to obtain Ag-NPs, which was characterized by UV-Vis, XRD, TEM, and Zeta potential analysis. Pullulan was used as a stabilizer and template for the growth of silver nanoparticles, while gamma radiation was modified to be selective to reduce silver ions. The formation of Ag-NPs was confirmed using UV–Vis spectra by showing a surface plasmon resonance (SPR) band in the region of 410–420 nm. As observed by TEM images, it can be said that by increasing the radiation dose, the particle size decreases, resulting in a mean diameter of Ag-NPs ranging from 40.97 to 3.98 nm. The XRD analysis confirmed that silver metal structures with a face-centered cubic (FCC) crystal were present, while TEM images showed a spherical shape with smooth edges. XRD also demonstrated that increasing the dose of gamma radiation increases the crystallinity at a high purity of Ag-NPs. As examined by zeta potential, the synthesized Ag-NP/PL was negatively charged with high stability. Ag-NP/PL was then analysed for antimicrobial activity against Staphylococcus aureus, and it was found that it had high antibacterial activity. It is found that the adoption of radiation doses results in a stable and green reduction process for silver nanoparticles.
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36
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Mariz IFA, Pinto SN, Santiago AM, Martinho JMG, Recio J, Vaquero JJ, Cuadro AM, Maçôas E. Two-photon activated precision molecular photosensitizer targeting mitochondria. Commun Chem 2021; 4:142. [PMID: 36697839 PMCID: PMC9814857 DOI: 10.1038/s42004-021-00581-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/21/2021] [Indexed: 01/28/2023] Open
Abstract
Mitochondria metabolism is an emergent target for the development of novel anticancer agents. It is amply recognized that strategies that allow for modulation of mitochondrial function in specific cell populations need to be developed for the therapeutic potential of mitochondria-targeting agents to become a reality in the clinic. In this work, we report dipolar and quadrupolar quinolizinium and benzimidazolium cations that show mitochondria targeting ability and localized light-induced mitochondria damage in live animal cells. Some of the dyes induce a very efficient disruption of mitochondrial potential and subsequent cell death under two-photon excitation in the Near-infrared (NIR) opening up possible applications of azonia/azolium aromatic heterocycles as precision photosensitizers. The dipolar compounds could be excited in the NIR due to a high two-photon brightness while exhibiting emission in the red part of the visible spectra (600-700 nm). Interaction with the mitochondria leads to an unexpected blue-shift of the emission of the far-red emitting compounds, which we assign to emission from the locally excited state. Interaction and possibly aggregation at the mitochondria prevents access to the intramolecular charge transfer state responsible for far-red emission.
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Affiliation(s)
- Inês F A Mariz
- Centro de Química Estrutural (CQE) and Institute of Molecular Sciences (IMS), Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal
| | - Sandra N Pinto
- Institute for Bioengineering and Biosciences (IBB) Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.,Associate Laboratory - Institute for Health and Bioeconomy (i4HB), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Ana M Santiago
- Centro de Química Estrutural (CQE) and Institute of Molecular Sciences (IMS), Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal
| | - José M G Martinho
- Centro de Química Estrutural (CQE) and Institute of Molecular Sciences (IMS), Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal
| | - Javier Recio
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, (IRYCIS), 28871-Alcalá de Henares, Madrid, Spain
| | - Juan J Vaquero
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, (IRYCIS), 28871-Alcalá de Henares, Madrid, Spain
| | - Ana M Cuadro
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, (IRYCIS), 28871-Alcalá de Henares, Madrid, Spain.
| | - Ermelinda Maçôas
- Centro de Química Estrutural (CQE) and Institute of Molecular Sciences (IMS), Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal.
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Tocopherol controls D1 amino acid oxidation by oxygen radicals in Photosystem II. Proc Natl Acad Sci U S A 2021; 118:2019246118. [PMID: 33479170 DOI: 10.1073/pnas.2019246118] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Photosystem II (PSII) is an intrinsic membrane protein complex that functions as a light-driven water:plastoquinone oxidoreductase in oxygenic photosynthesis. Electron transport in PSII is associated with formation of reactive oxygen species (ROS) responsible for oxidative modifications of PSII proteins. In this study, oxidative modifications of the D1 and D2 proteins by the superoxide anion (O2 •-) and the hydroxyl (HO•) radicals were studied in WT and a tocopherol cyclase (vte1) mutant, which is deficient in the lipid-soluble antioxidant α-tocopherol. In the absence of this antioxidant, high-resolution tandem mass spectrometry was used to identify oxidation of D1:130E to hydroxyglutamic acid by O2 •- at the PheoD1 site. Additionally, D1:246Y was modified to either tyrosine hydroperoxide or dihydroxyphenylalanine by O2 •- and HO•, respectively, in the vicinity of the nonheme iron. We propose that α-tocopherol is localized near PheoD1 and the nonheme iron, with its chromanol head exposed to the lipid-water interface. This helps to prevent oxidative modification of the amino acid's hydrogen that is bonded to PheoD1 and the nonheme iron (via bicarbonate), and thus protects electron transport in PSII from ROS damage.
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Le NA, Babu V, Kalt M, Schneider L, Schumer F, Spingler B. Photostable Platinated Bacteriochlorins as Potent Photodynamic Agents. J Med Chem 2021; 64:6792-6801. [PMID: 33988998 DOI: 10.1021/acs.jmedchem.1c00052] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Photodynamic therapy (PDT) is used to treat various cancerous diseases. Recently, we have demonstrated that platinated pyridyl-substituted porphyrins are potent agents for PDT with very high phototoxicity (IC50 down to 17 nM) and excellent phototoxic indices of higher than 5800 (p.i. = IC50(dark)/IC50(light)) [Rubbiani, R. et al., Chem. Commun. 2020, 56, 14373]. However, the absorption of porphyrins is not ideal for the treatment of larger tumors because they essentially do not absorb light between 650 and 850 nm. Herein, we report stable conjugates of a novel bacteriochlorin with cisplatin and transplatin. They exhibit extremely high phototoxicity (IC50 values down to 6 nM, irradiated with a 750 nm LED at a fluence of 5 J/cm2), very low dark toxicity, and thereby extremely high phototoxic indices up to 8300. Based on these exciting results, we believe that platinated bacteriochlorins are promising candidates for further investigation as novel PDT anticancer agents.
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Affiliation(s)
- Ngoc An Le
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Vipin Babu
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Martina Kalt
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Lukas Schneider
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Frank Schumer
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
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Daouk J, Iltis M, Dhaini B, Béchet D, Arnoux P, Rocchi P, Delconte A, Habermeyer B, Lux F, Frochot C, Tillement O, Barberi-Heyob M, Schohn H. Terbium-Based AGuIX-Design Nanoparticle to Mediate X-ray-Induced Photodynamic Therapy. Pharmaceuticals (Basel) 2021; 14:ph14050396. [PMID: 33922073 PMCID: PMC8143523 DOI: 10.3390/ph14050396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 01/10/2023] Open
Abstract
X-ray-induced photodynamic therapy is based on the energy transfer from a nanoscintillator to a photosensitizer molecule, whose activation leads to singlet oxygen and radical species generation, triggering cancer cells to cell death. Herein, we synthesized ultra-small nanoparticle chelated with Terbium (Tb) as a nanoscintillator and 5-(4-carboxyphenyl succinimide ester)-10,15,20-triphenyl porphyrin (P1) as a photosensitizer (AGuIX@Tb-P1). The synthesis was based on the AGuIX@ platform design. AGuIX@Tb-P1 was characterised for its photo-physical and physico-chemical properties. The effect of the nanoparticles was studied using human glioblastoma U-251 MG cells and was compared to treatment with AGuIX@ nanoparticles doped with Gadolinium (Gd) and P1 (AGuIX@Gd-P1). We demonstrated that the AGuIX@Tb-P1 design was consistent with X-ray photon energy transfer from Terbium to P1. Both nanoparticles had similar dark cytotoxicity and they were absorbed in a similar rate within the cells. Pre-treated cells exposure to X-rays was related to reactive species production. Using clonogenic assays, establishment of survival curves allowed discrimination of the impact of radiation treatment from X-ray-induced photodynamic effect. We showed that cell growth arrest was increased (35%-increase) when cells were treated with AGuIX@Tb-P1 compared to the nanoparticle doped with Gd.
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Affiliation(s)
- Joël Daouk
- Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (J.D.); (M.I.); (D.B.); (A.D.); (H.S.)
| | - Mathilde Iltis
- Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (J.D.); (M.I.); (D.B.); (A.D.); (H.S.)
| | - Batoul Dhaini
- Reactions and Chemical Engineering Laboratory (LRGP), UMR 7274, Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (B.D.); (P.A.); (C.F.)
| | - Denise Béchet
- Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (J.D.); (M.I.); (D.B.); (A.D.); (H.S.)
| | - Philippe Arnoux
- Reactions and Chemical Engineering Laboratory (LRGP), UMR 7274, Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (B.D.); (P.A.); (C.F.)
| | - Paul Rocchi
- Light Matter Institute, UMR-5306, Université de Lyon–French National Scientific Research Center (CNRS), F-69000 Lyon, France; (P.R.); (F.L.); (O.T.)
| | - Alain Delconte
- Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (J.D.); (M.I.); (D.B.); (A.D.); (H.S.)
| | | | - François Lux
- Light Matter Institute, UMR-5306, Université de Lyon–French National Scientific Research Center (CNRS), F-69000 Lyon, France; (P.R.); (F.L.); (O.T.)
| | - Céline Frochot
- Reactions and Chemical Engineering Laboratory (LRGP), UMR 7274, Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (B.D.); (P.A.); (C.F.)
| | - Olivier Tillement
- Light Matter Institute, UMR-5306, Université de Lyon–French National Scientific Research Center (CNRS), F-69000 Lyon, France; (P.R.); (F.L.); (O.T.)
| | - Muriel Barberi-Heyob
- Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (J.D.); (M.I.); (D.B.); (A.D.); (H.S.)
- Correspondence: ; Tel.: +33-(0)3-72-74-61-14
| | - Hervé Schohn
- Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France; (J.D.); (M.I.); (D.B.); (A.D.); (H.S.)
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A high-performance genetically encoded fluorescent biosensor for imaging physiological peroxynitrite. Cell Chem Biol 2021; 28:1542-1553.e5. [PMID: 33581056 DOI: 10.1016/j.chembiol.2021.01.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 10/08/2020] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
Peroxynitrite is a reactive nitrogen species (RNS) that plays critical roles in signal transduction, stress response, and numerous human diseases. Advanced molecular tools that permit the selective, sensitive, and noninvasive detection of peroxynitrite are essential for understanding its pathophysiological functions. Here, we present pnGFP-Ultra, a high-performance, reaction-based, genetically encodable biosensor for imaging peroxynitrite in live cells. pnGFP-Ultra features a p-boronophenylalanine-modified chromophore as the sensing moiety and exhibits a remarkable ~110-fold fluorescence turn-on response toward peroxynitrite while displaying virtually no cross-reaction with other reactive oxygen/nitrogen species. To facilitate the expression of pnGFP-Ultra in mammalian cells, we engineered an efficient noncanonical amino acid (ncAA) expression system that is broadly applicable to the mammalian expression of ncAA-containing proteins. pnGFP-Ultra robustly detected peroxynitrite production in activated macrophages and primary glial cells. pnGFP-Ultra fills an important technical gap and represents a valuable addition to the molecular toolbox for probing RNS biology.
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Abstract
Photodynamic therapy employs nontoxic dyes called photosensitizers (PS) that are excited by visible light of the correct wavelength to produce a variety of reactive oxygen species (ROS) by an interaction between the long-lived PS triplet states with ambient oxygen. The most important type of ROS in photodynamic therapy (PDT) is singlet oxygen, which is produced by a Type II energy transfer process. On the other hand, superoxide, hydrogen peroxide, and hydroxyl radicals can be produced by a Type I electron transfer process. This chapter describes a set of fluorescent probes that can be used to tease apart these different ROS produced when various PS are illuminated in solution. Singlet oxygen sensor green (SOSG) is used for singlet oxygen, 4-hydroxyphenyl-fluorescein (HPF) for hydroxyl radicals, Amplex Red for hydrogen peroxide, and nitroblue-tetrazolium or XTT for superoxide.
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Affiliation(s)
- Sulbha K Sharma
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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42
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Lebedeva NS, Yurina ES, Gubarev YA, Syrbu SA, Koifman OI. Aggregation of protein complexes with porphyrins under light irradiation. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424621500061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The interaction of meso-tetra-([Formula: see text]-methyl-3-pyridyl)bacteriochlorin tetra 4-methylbenzenesulfonate, meso-tetra-([Formula: see text]-methyl-4-pyridyl)porphine tetraiodide and meso-tetra-([Formula: see text]-methyl-3-pyridyl)porphine tetraiodide with protein was studied. The localization of macrocycles in the protein and their influence on the processes of protein aggregation were established. The aggregation process is initiated by the transition of alpha structures into beta folds, caused by the binding of porphyrins at the sites of protein IB and IIA. The complexes were irradiated with blue and green light. The data obtained showed that by varying the intensity of the light exposure, one can influence the shift of the aggregation equilibrium, obtaining predominantly monomeric or aggregated structures. Thus, photoexposure can be used as an alternative method of treating diseases caused by amyloidosis and for regulating the state of the protein in the pharmacological preparations.
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Affiliation(s)
- Natalia Sh. Lebedeva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia, 153045, Russia
| | - Elena S. Yurina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia, 153045, Russia
| | - Yury A. Gubarev
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia, 153045, Russia
| | - Sergey A. Syrbu
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia, 153045, Russia
| | - Oskar I. Koifman
- Ivanovo State University of Chemistry and Technology, 153000, Ivanovo, Russia
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43
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Huang Y, Liu Y, Shah S, Kim D, Simon-Soro A, Ito T, Hajfathalian M, Li Y, Hsu JC, Nieves LM, Alawi F, Naha PC, Cormode DP, Koo H. Precision targeting of bacterial pathogen via bi-functional nanozyme activated by biofilm microenvironment. Biomaterials 2020; 268:120581. [PMID: 33302119 DOI: 10.1016/j.biomaterials.2020.120581] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 01/08/2023]
Abstract
Human dental caries is an intractable biofilm-associated disease caused by microbial interactions and dietary sugars on the host's teeth. Commensal bacteria help control opportunistic pathogens via bioactive products such as hydrogen peroxide (H2O2). However, high-sugar consumption disrupts homeostasis and promotes pathogen accumulation in acidic biofilms that cause tooth-decay. Here, we exploit the pathological (sugar-rich/acidic) conditions using a nanohybrid system to increase intrinsic H2O2 production and trigger pH-dependent reactive oxygen species (ROS) generation for efficient biofilm virulence targeting. The nanohybrid contains glucose-oxidase that catalyzes glucose present in biofilms to increase intrinsic H2O2, which is converted by iron oxide nanoparticles with peroxidase-like activity into ROS in acidic pH. Notably, it selectively kills Streptococcus mutans (pathogen) without affecting Streptococcus oralis (commensal) via preferential pathogen-binding and in situ ROS generation. Furthermore, nanohybrid treatments potently reduced dental caries in a rodent model. Compared to chlorhexidine (positive-control), which disrupted oral microbiota diversity, the nanohybrid had significant higher efficacy without affecting soft-tissues and the oral-gastrointestinal microbiomes, while modulating dental health-associated microbial activity in vivo. The data reveal therapeutic precision of a bi-functional hybrid nanozyme against a biofilm-related disease in a controlled-manner activated by pathological conditions.
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Affiliation(s)
- Yue Huang
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Yuan Liu
- Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Shrey Shah
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Dongyeop Kim
- Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Preventive Dentistry, School of Dentistry, Jeonbuk National Universitys, Deokjin-gu, Jeonju, 54896, South Korea
| | - Aurea Simon-Soro
- Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Tatsuro Ito
- Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Pediatric Dentistry, School of Dentistry at Matsudo, Nihon University, Matsudo, Chiba, 271-8587, Japan
| | - Maryam Hajfathalian
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Yong Li
- Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Jessica C Hsu
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Lenitza M Nieves
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Faizan Alawi
- Department of Pathology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19014, United States
| | - Pratap C Naha
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - David P Cormode
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Cardiology, University of Pennsylvania, Philadelphia, PA, 19104, United States; Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, 19104, United States.
| | - Hyun Koo
- Biofilm Research Labs, Levy Center for Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States; Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, 19104, United States.
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Pieranski M, Sitkiewicz I, Grinholc M. Increased photoinactivation stress tolerance of Streptococcus agalactiae upon consecutive sublethal phototreatments. Free Radic Biol Med 2020; 160:657-669. [PMID: 32916279 DOI: 10.1016/j.freeradbiomed.2020.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/24/2020] [Accepted: 09/02/2020] [Indexed: 02/08/2023]
Abstract
Streptococcus agalactiae (Group B Streptococcus, GBS) is a common commensal bacterium in adults but remains a leading source of invasive infections in newborns, pregnant women, and the elderly, and more recently, causes an increased incidence of invasive disease in nonpregnant adults. Reduced penicillin susceptibility and emerging resistance to non-β-lactams pose challenges for the development and implementation of novel, nonantimicrobial strategies to reduce the burden of GBS infections. Antimicrobial photodynamic inactivation (aPDI) via the production of singlet oxygen or other reactive oxygen species leads to the successful eradication of pathogenic bacteria, affecting numerous cellular targets of microbial pathogens and indicating a low risk of resistance development. Nevertheless, we have previously reported possible aPDI tolerance development upon repeated sublethal aPDI applications; thus, the current work was aimed at investigating whether aPDI tolerance could be observed for GBS and what mechanisms could cause it. To address this problem, 10 cycles of sublethal aPDI treatments employing rose bengal as a photosensitizer, were applied to the S. agalactiae ATCC 27956 reference strain and two clinical isolates (2306/02 and 2974/07, serotypes III and V, respectively). We demonstrated aPDI tolerance development and stability after 5 cycles of subculturing with no aPDI exposure. Though the treatment resulted in a stable phenotype, no increases in mutation rate or accumulated genetic alterations were observed (employing a RIF-, CIP-, STR-resistant mutant selection assay and cyl sequencing, respectively). qRT-PCR analysis demonstrated that 10 sublethal aPDI exposures led to increased expression of all tested major oxidative stress response elements; changes in sodA, ahpC, npx, cylE, tpx and recA expression indicate possible mechanisms of developed tolerance. Increased expression upon sublethal aPDI treatment was reported for all but two genes, namely, ahpC and cylE. aPDI targeting cylE was further supported by colony morphology changes induced with 10 cycles of aPDI (increased SCV population, increased hemolysis, increased numbers of dark- and unpigmented colonies). In oxidant killing assays, aPDI-tolerant strains demonstrated no increased tolerance to hypochlorite, superoxide (paraquat), singlet oxygen (new methylene blue) or oxidative stress induced by aPDI employing a structurally different photosensitizer, i.e., zinc phthalocyanine, indicating a lack of cross resistance. The results indicate that S. agalactiae may develop stable aPDI tolerance but not resistance when subjected to multiple sublethal phototreatments, and this risk should be considered significant when defining efficient anti-S. agalactiae aPDI protocols.
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Affiliation(s)
- Michal Pieranski
- Intercollegiate Faculty of Biotechnology, Laboratory of Molecular Diagnostics, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Izabela Sitkiewicz
- Department of Drug Biotechnology and Bioinformatics, National Medicines Institute, Chelmska 30/34, 00-725, Warszawa, Poland
| | - Mariusz Grinholc
- Intercollegiate Faculty of Biotechnology, Laboratory of Molecular Diagnostics, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland.
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Wang C, Xiao Y, Zhu W, Chu J, Xu J, Zhao H, Shen F, Peng R, Liu Z. Photosensitizer-Modified MnO 2 Nanoparticles to Enhance Photodynamic Treatment of Abscesses and Boost Immune Protection for Treated Mice. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000589. [PMID: 32521098 DOI: 10.1002/smll.202000589] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/27/2020] [Indexed: 06/11/2023]
Abstract
The emergence of drug-resistant bacteria and easy recurrence has been challenging in the clinical treatment of skin abscesses resulting from bacterial infections (e.g., by Staphylococcus aureus (S. aureus)). Herein, an antibacterial nanoagent capable of modulating the abscess microenvironment is designed to enhance photodynamic treatment of skin abscesses, and subsequently activate the immune system to effectively prevent abscess recurrence. In the system, manganese dioxide nanoparticles (MnO2 NPs) with high catalytic reactivity toward H2 O2 are modified with photosensitizer chlorine e6 (Ce6) and coated with polyethylene glycol (PEG). The obtained Ce6@MnO2 -PEG NPs, by triggering the decomposition of lesion endogenous H2 O2 , are able to effectively relieve the hypoxic abscess microenvironment during S. aureus infection. The light-triggered photodynamic bacterial killing effect could thus be remarkably enhanced, resulting in effective in vivo therapy of S. aureus-induced skin abscesses. Interestingly, a notable pathogen-specific immunological memory effect against future infection by the same species of bacteria is elicited after such treatment, owing to the release of bacterial antigens post photodynamic therapy (PDT) together with the adjuvant-like function of manganese ions to activate the host immune system. This work thus presents a new type of photodynamic nanoagent particularly promising for highly effective light-triggered abscess treatment and prevention of abscess recurrence.
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Affiliation(s)
- Chenya Wang
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yuanpeng Xiao
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Wenwen Zhu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Jiacheng Chu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Jun Xu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - He Zhao
- Children's Hospital of Soochow University, Pediatric Research Institute of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Fengyun Shen
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Rui Peng
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhuang Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
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46
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Abstract
Peroxynitrite (PNT) is a highly reactive oxidant that plays a key role in the destruction of foreign pathogens by specific phagocytic immune cells such as macrophages. However, when its production is dysregulated, this oxidant can contribute to cardiovascular disease, neurological diseases, and cancer. To facilitate the detection of PNT in living cells, we designed and synthesized a fluorescent sensor termed PS3 that accumulates in membranes of the endoplasmic reticulum (ER). This subcellular targeting enhances the proximity of PS3 to the phagosome of macrophages where PNT is generated. When PS3-treated macrophages are stimulated with 10 µm opsonized tentagel microspheres, antibody-dependent cellular phagocytosis (ADCP) of these particles results in production of endogenous PNT, oxidative cleavage of the fluorescence-quenching phenolic side chain of PS3, and increased fluorescence that can be detected by confocal laser scanning microscopy, flow cytometry, and other assays. We describe methods for the synthesis of PS3 and evaluation of its photophysical properties, selectivity, and reactivity. We further report differential production of PNT during ADCP by the phagocytic cell lines RAW 264.7, J774A.1, and THP-1, as detected by confocal microscopy and changes in fluorescence intensity on 96-well plates. This approach may be useful for identification of modulators of PNT and related studies of ADCP.
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47
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Dmitrieva VA, Tyutereva EV, Voitsekhovskaja OV. Singlet Oxygen in Plants: Generation, Detection, and Signaling Roles. Int J Mol Sci 2020; 21:E3237. [PMID: 32375245 PMCID: PMC7247340 DOI: 10.3390/ijms21093237] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 01/17/2023] Open
Abstract
Singlet oxygen (1O2) refers to the lowest excited electronic state of molecular oxygen. It easily oxidizes biological molecules and, therefore, is cytotoxic. In plant cells, 1O2 is formed mostly in the light in thylakoid membranes by reaction centers of photosystem II. In high concentrations, 1O2 destroys membranes, proteins and DNA, inhibits protein synthesis in chloroplasts leading to photoinhibition of photosynthesis, and can result in cell death. However, 1O2 also acts as a signal relaying information from chloroplasts to the nucleus, regulating expression of nuclear genes. In spite of its extremely short lifetime, 1O2 can diffuse from the chloroplasts into the cytoplasm and the apoplast. As shown by recent studies, 1O2-activated signaling pathways depend not only on the levels but also on the sites of 1O2 production in chloroplasts, and can activate two types of responses, either acclimation to high light or programmed cell death. 1O2 can be produced in high amounts also in root cells during drought stress. This review summarizes recent advances in research on mechanisms and sites of 1O2 generation in plants, on 1O2-activated pathways of retrograde- and cellular signaling, and on the methods to study 1O2 production in plants.
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Affiliation(s)
| | | | - Olga V. Voitsekhovskaja
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute, Russian Academy of Sciences, Saint Petersburg 197376, Russia; (V.A.D.); (E.V.T.)
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48
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Knoblauch R, Moskowitz J, Hawkins E, Geddes CD. Fluorophore-Induced Plasmonic Current: Generation-Based Detection of Singlet Oxygen. ACS Sens 2020; 5:1223-1229. [PMID: 32241108 DOI: 10.1021/acssensors.0c00377] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this work, we report the surface-based electrical detection of singlet oxygen using the emerging fluorophore-induced plasmonic current (PC) technique. By this method, we utilize the fluorescent "turn on" response of the well-known singlet oxygen sensor green (SOSG) singlet oxygen (1O2) fluorescent probe for the generation of fluorophore-induced PC in a silver nanoparticle film. To demonstrate the potential utility of this new technique, a photosensitizing molecule is used to generate 1O2 in a solution containing the SOSG probe. The resulting change in SOSG fluorescence quantum yield and extinction coefficient permits stronger energy transfer from the SOSG probe to a proximal silver nanoparticle island film located in the near-electric field of the probe. This yields an increase in the induced electric current flow, allowing for the detection of the 1O2 analyte. To the author's knowledge, this represents the first detection of the reactive oxygen species 1O2 utilizing fluorophore-induced PC methodology and even broader electrical detection of 1O2. This is significant as it opens the possibility for 1O2 detection methods which do not require a traditional "photodetector" and associated optics, simplifying the instrumentation over existing fluorescence detection methods and potentially even lowering the cost.
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Affiliation(s)
- Rachael Knoblauch
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 701 East Pratt Street, Baltimore, Maryland 21202, United States
| | - Joshua Moskowitz
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 701 East Pratt Street, Baltimore, Maryland 21202, United States
| | - Elizabeth Hawkins
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 701 East Pratt Street, Baltimore, Maryland 21202, United States
| | - Chris D. Geddes
- Institute of Fluorescence and Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, 701 East Pratt Street, Baltimore, Maryland 21202, United States
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49
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Chennoufi R, Trinh ND, Simon F, Bordeau G, Naud-Martin D, Moussaron A, Cinquin B, Bougherara H, Rambaud B, Tauc P, Frochot C, Teulade-Fichou MP, Mahuteau-Betzer F, Deprez E. Interplay between Cellular Uptake, Intracellular Localization and the Cell Death Mechanism in Triphenylamine-Mediated Photoinduced Cell Death. Sci Rep 2020; 10:6881. [PMID: 32327691 PMCID: PMC7181850 DOI: 10.1038/s41598-020-63991-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/08/2020] [Indexed: 12/19/2022] Open
Abstract
Triphenylamines (TPAs) were previously shown to trigger cell death under prolonged one- or two-photon illumination. Their initial subcellular localization, before prolonged illumination, is exclusively cytoplasmic and they translocate to the nucleus upon photoactivation. However, depending on their structure, they display significant differences in terms of precise initial localization and subsequent photoinduced cell death mechanism. Here, we investigated the structural features of TPAs that influence cell death by studying a series of molecules differing by the number and chemical nature of vinyl branches. All compounds triggered cell death upon one-photon excitation, however to different extents, the nature of the electron acceptor group being determinant for the overall cell death efficiency. Photobleaching susceptibility was also an important parameter for discriminating efficient/inefficient compounds in two-photon experiments. Furthermore, the number of branches, but not their chemical nature, was crucial for determining the cellular uptake mechanism of TPAs and their intracellular fate. The uptake of all TPAs is an active endocytic process but two- and three-branch compounds are taken up via distinct endocytosis pathways, clathrin-dependent or -independent (predominantly caveolae-dependent), respectively. Two-branch TPAs preferentially target mitochondria and photoinduce both apoptosis and a proper necrotic process, whereas three-branch TPAs preferentially target late endosomes and photoinduce apoptosis only.
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Affiliation(s)
- Rahima Chennoufi
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France
| | - Ngoc-Duong Trinh
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France
| | - Françoise Simon
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France
| | - Guillaume Bordeau
- UMR9187, CNRS, INSERM, Institut Curie, PSL Research University, Université Paris-Saclay, F-91405, Orsay, France.,Laboratoire des IMRCP, Université de Toulouse, CNRS UMR5623, Université Toulouse-III - Paul Sabatier, F-31400, Toulouse, France
| | - Delphine Naud-Martin
- UMR9187, CNRS, INSERM, Institut Curie, PSL Research University, Université Paris-Saclay, F-91405, Orsay, France
| | - Albert Moussaron
- LRGP, UMR7274 CNRS-Université de Lorraine, F-54000, Nancy, France
| | - Bertrand Cinquin
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France
| | - Houcine Bougherara
- Institut Cochin, INSERM U1016-CNRS UMR8104-Université Paris Descartes, Sorbonne Paris Cité, F-75014, Paris, France.,Institut de Recherches Servier SA, F-78290, Croissy-sur-Seine, France
| | - Béatrice Rambaud
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France
| | - Patrick Tauc
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France
| | - Céline Frochot
- LRGP, UMR7274 CNRS-Université de Lorraine, F-54000, Nancy, France
| | - Marie-Paule Teulade-Fichou
- UMR9187, CNRS, INSERM, Institut Curie, PSL Research University, Université Paris-Saclay, F-91405, Orsay, France.
| | - Florence Mahuteau-Betzer
- UMR9187, CNRS, INSERM, Institut Curie, PSL Research University, Université Paris-Saclay, F-91405, Orsay, France.
| | - Eric Deprez
- Laboratory of Biology and Applied Pharmacology (LBPA), CNRS UMR8113, IDA FR3242, ENS Paris-Saclay, Université Paris-Saclay, F-91190, Gif-sur-Yvette, France.
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50
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Pucelik B, Sułek A, Drozd A, Stochel G, Pereira MM, Pinto SMA, Arnaut LG, Dąbrowski JM. Enhanced Cellular Uptake and Photodynamic Effect with Amphiphilic Fluorinated Porphyrins: The Role of Sulfoester Groups and the Nature of Reactive Oxygen Species. Int J Mol Sci 2020; 21:ijms21082786. [PMID: 32316355 PMCID: PMC7216003 DOI: 10.3390/ijms21082786] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 12/19/2022] Open
Abstract
A class of amphiphilic photosensitizers for photodynamic therapy (PDT) was developed. Sulfonate esters of modified porphyrins bearing-F substituents in the ortho positions of the phenyl rings have adequate properties for PDT, including absorption in the red, increased cellular uptake, favorable intracellular localization, low cytotoxicity, and high phototoxicity against A549 (human lung adenocarcinoma) and CT26 (murine colon carcinoma) cells. Moreover, the role of type I and type II photochemical processes was assessed by fluorescent probes specific for various reactive oxygen species (ROS). The photodynamic effect is improved not only by enhanced cellular uptake but also by the high generation of both singlet oxygen and oxygen-centered radicals. All of the presented results support the idea that the rational design of photosensitizers for PDT can be further improved by better understanding the determinants affecting its therapeutic efficiency and explain how smart structural modifications can make them suitable photosensitizers for application in PDT.
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Affiliation(s)
- Barbara Pucelik
- Faculty of Chemistry, Jagiellonian University, 30-387 Krakow, Poland
- Małopolska Center of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Adam Sułek
- Faculty of Chemistry, Jagiellonian University, 30-387 Krakow, Poland
| | - Agnieszka Drozd
- Faculty of Chemistry, Jagiellonian University, 30-387 Krakow, Poland
| | - Grażyna Stochel
- Faculty of Chemistry, Jagiellonian University, 30-387 Krakow, Poland
| | | | - Sara M. A. Pinto
- Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Luis G. Arnaut
- Chemistry Department, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Janusz M. Dąbrowski
- Faculty of Chemistry, Jagiellonian University, 30-387 Krakow, Poland
- Correspondence: ; Tel.: +48-12-686-2488; Fax: +48-12-686-2750
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