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Winslow M, Hazelby A, Robinson D. Spin-Restricted Descriptions of Singlet Oxygen Reactions from XMS-CASPT2 Benchmarks. J Phys Chem A 2024; 128:4128-4137. [PMID: 38739627 PMCID: PMC11129307 DOI: 10.1021/acs.jpca.4c00744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/25/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024]
Abstract
Reactions of singlet oxygen are numerous, some of which are desired but many are unwanted. Therefore, the ability to correctly predict and interpret this reactivity for complex molecular systems is essential to our understanding of singlet oxygen reactions. DFT is widely used for predicting many reactions but is not suited to degenerate electronic structures; application to isolated singlet oxygen often uses the spin-unrestricted formalism, which results in severe spin contamination. In this work, we demonstrate that spin-restricted DFT can correctly describe the reaction pathway for four prototypical singlet oxygen reactions. By careful benchmarking with XMS-CASPT2, we show that, from the first transition state onward, the degeneracy of the 1Δg state is broken due to differing interactions of the (degenerate) π* orbitals with the organic substrate; this result is well replicated with DFT. These findings demonstrate the utility of using spin-restricted DFT to explore reactions, opening the way to confidently use this computationally efficient method for molecular systems of medium to large organic molecules.
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Affiliation(s)
| | - Alexander Hazelby
- Department of Chemistry and
Forensics, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United
Kingdom
| | - David Robinson
- Department of Chemistry and
Forensics, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United
Kingdom
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2
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Sommerfeld F, Weyersberg L, Vatter P, Hessling M. Photoinactivation of the bacteriophage PhiX174 by UVA radiation and visible light in SM buffer and DMEM-F12. BMC Res Notes 2024; 17:3. [PMID: 38167092 PMCID: PMC10759336 DOI: 10.1186/s13104-023-06658-8] [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: 07/14/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
OBJECTIVE It has been observed that viruses can be inactivated by UVA radiation and visible light. The aim of this study is to investigate whether a medium that contains a photosensitizer might have an influence on viral reduction under irradiation by UVA, violet or blue light. Test virus is the bacteriophage PhiX174 in the photosensitizer-free SM buffer and DMEM-F12, which contains the known photosensitizer riboflavin. RESULTS The determined PhiX174 D90 doses in SM buffer and DMEM were 36.8 J/cm² and 13.6 J/cm² at 366 nm, 153.6 J/cm² and 129.1 J/cm² at 408 nm and 4988 J/cm² and 2477.1 J/cm² at 455 nm, respectively. It can be concluded that the medium has a large influence on the results. This might be caused by the photosensitizer riboflavin in DMEM-F12. As riboflavin is a key component in many cell culture media, irradiation experiments with viruses in cell culture media should be avoided if the investigation of intrinsical photoinactivation properties of viruses is aimed for.
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Affiliation(s)
- Florian Sommerfeld
- Department of Medical Engineering and Mechatronics, Ulm University of Applied Sciences, Albert-Einstein-Allee 55, D-89081, Ulm, Germany
| | - Laura Weyersberg
- Department of Medical Engineering and Mechatronics, Ulm University of Applied Sciences, Albert-Einstein-Allee 55, D-89081, Ulm, Germany
| | - Petra Vatter
- Department of Medical Engineering and Mechatronics, Ulm University of Applied Sciences, Albert-Einstein-Allee 55, D-89081, Ulm, Germany
| | - Martin Hessling
- Department of Medical Engineering and Mechatronics, Ulm University of Applied Sciences, Albert-Einstein-Allee 55, D-89081, Ulm, Germany.
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3
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Abstract
Endogenous photosensitizers play a critical role in both beneficial and harmful light-induced transformations in biological systems. Understanding their mode of action is essential for advancing fields such as photomedicine, photoredox catalysis, environmental science, and the development of sun care products. This review offers a comprehensive analysis of endogenous photosensitizers in human skin, investigating the connections between their electronic excitation and the subsequent activation or damage of organic biomolecules. We gather the physicochemical and photochemical properties of key endogenous photosensitizers and examine the relationships between their chemical reactivity, location within the skin, and the primary biochemical events following solar radiation exposure, along with their influence on skin physiology and pathology. An important take-home message of this review is that photosensitization allows visible light and UV-A radiation to have large effects on skin. The analysis presented here unveils potential causes for the continuous increase in global skin cancer cases and emphasizes the limitations of current sun protection approaches.
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Affiliation(s)
- Erick L Bastos
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Frank H Quina
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
- Department of Chemical Engineering, Polytechnic School, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
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4
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Kurz B, Berneburg M, Bäumler W, Karrer S. Phototherapy: Theory and practice. J Dtsch Dermatol Ges 2023; 21:882-897. [PMID: 37485907 DOI: 10.1111/ddg.15126] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/12/2023] [Indexed: 07/25/2023]
Abstract
Despite the development of highly effective biologics for skin diseases such as psoriasis or atopic dermatitis, UVA and UVB therapy, alone or in combination, are still essential components of various guidelines. Phototherapy is not only a first-line treatment and highly effective for a number of skin diseases, but is also economical and has few side effects. The targeted use of UVA and UVB, if necessary, in combination with the photosensitizer psoralen in the context of PUVA therapy, enables the dermatologist to effectively treat a wide variety of skin diseases. Indications for phototherapy include epidermal diseases such as atopic dermatitis, psoriasis and vitiligo, as well as photodermatoses, mycosis fungoides, graft-versus-host disease and deep dermal diseases such as scleroderma. This article reviews the physical principles, molecular mechanisms, current treatment regimens, and individual indications for phototherapy and photochemotherapy.
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Affiliation(s)
- Bernadett Kurz
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Bäumler
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Sigrid Karrer
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
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5
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Kurz B, Berneburg M, Bäumler W, Karrer S. Phototherapie in Theorie und Praxis. J Dtsch Dermatol Ges 2023; 21:882-898. [PMID: 37574671 DOI: 10.1111/ddg.15126_g] [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: 11/09/2022] [Accepted: 04/12/2023] [Indexed: 08/15/2023]
Abstract
ZusammenfassungDie Therapie oder Kombinationstherapie mit UV‐A‐ oder UV‐B‐Strahlen ist trotz der Entwicklung hochwirksamer Biologika bei Hauterkrankungen wie Psoriasis oder atopischer Dermatitis nach wie vor unverzichtbarer Bestandteil verschiedener Leitlinienempfehlungen. Die Phototherapie ist nicht nur eine sehr effektive Erstlinientherapie bei verschiedenen Hauterkrankungen, sondern auch kostengünstig und nebenwirkungsarm. Der gezielte Einsatz von UV‐A und UV‐B, gegebenenfalls auch in Kombination mit dem Photosensibilisator Psoralen im Rahmen einer PUVA‐Therapie, ermöglicht dem Dermatologen eine effektive Behandlung verschiedener Hautkrankheiten. Indikationen für die Phototherapie sind epidermale Erkrankungen wie die atopische Dermatitis, die Psoriasis und die Vitiligo, ferner Photodermatosen, die Mycosis fungoides, die Graft‐versus‐Host‐Erkrankung sowie tiefe dermale Erkrankungen wie die Sklerodermie. Dieser Artikel gibt einen Überblick über die physikalischen Grundlagen, die molekularen Mechanismen, die derzeitigen Behandlungsmethoden und die einzelnen Indikationen für die Phototherapie und die Photochemotherapie.
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Affiliation(s)
- Bernadett Kurz
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
| | - Mark Berneburg
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
| | - Wolfgang Bäumler
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
| | - Sigrid Karrer
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
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de Faria Lopes L, Jandova J, Justiniano R, Perer J, Baptista MS, Wondrak GT. The Glycolysis-derived α-Dicarbonyl Metabolite Methylglyoxal is a UVA-photosensitizer Causing the Photooxidative Elimination of HaCaT Keratinocytes with Induction of Oxidative and Proteotoxic Stress Response Gene Expression †. Photochem Photobiol 2023; 99:826-834. [PMID: 36109156 PMCID: PMC10321145 DOI: 10.1111/php.13717] [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: 07/05/2022] [Accepted: 08/28/2022] [Indexed: 12/01/2022]
Abstract
Cellular oxidative stress contributes to solar ultraviolet (UV) radiation-induced skin photoaging and photocarcinogenesis. Light-driven electron and energy transfer reactions involving non-DNA chromophores are a major source of reactive oxygen species (ROS) in skin, and the molecular identity of numerous endogenous chromophores acting as UV-photosensitizers has been explored. Methylglyoxal (MG), a glycolytic byproduct bearing a UV-active α-dicarbonyl-chromophore, is generated under metabolic conditions of increased glycolytic flux, associated with posttranslational protein adduction in human tissue. Here, we undertook a photophysical and photochemical characterization of MG substantiating its fluorescence properties (Stokes shift), phosphorescence lifetime, and quantum yield of singlet oxygen (1 O2 ) formation. Strikingly, upon UV-excitation (290 nm), a clear emission (around 490 nm) was observed (phosphorescence-lifetime: 224.2 milliseconds). At micromolar concentrations, MG acts as a UVA-photosensitizer targeting human HaCaT-keratinocytes inducing photooxidative stress and caspase-dependent cell death substantiated by zVADfmk-rescue and Alexa-488 caspase-3 flow cytometry. Transcriptomic analysis indicated that MG (photoexcited by noncytotoxic doses of UVA) elicits expression changes not observable upon isolated MG- or UVA-treatment, with upregulation of the proteotoxic (CRYAB, HSPA6) and oxidative (HMOX1) stress response. Given the metabolic origin of MG and its role in human pathology, future investigations should address the potential involvement of MG-photosensitizer activity in human skin photodamage.
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Affiliation(s)
- Lohanna de Faria Lopes
- Biochemistry Department, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Jana Jandova
- Department of Pharmacology and Toxicology, RK Coit College of Pharmacy, and UA Cancer Center, University of Arizona, Tucson, Arizona
| | - Rebecca Justiniano
- Department of Pharmacology and Toxicology, RK Coit College of Pharmacy, and UA Cancer Center, University of Arizona, Tucson, Arizona
| | - Jessica Perer
- Department of Pharmacology and Toxicology, RK Coit College of Pharmacy, and UA Cancer Center, University of Arizona, Tucson, Arizona
| | - Maurício S. Baptista
- Biochemistry Department, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Georg T. Wondrak
- Department of Pharmacology and Toxicology, RK Coit College of Pharmacy, and UA Cancer Center, University of Arizona, Tucson, Arizona
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Marković ZM, Kováčová M, Jeremić SR, Nagy Š, Milivojević DD, Kubat P, Kleinová A, Budimir MD, Mojsin MM, Stevanović MJ, Annušová A, Špitalský Z, Todorović Marković BM. Highly Efficient Antibacterial Polymer Composites Based on Hydrophobic Riboflavin Carbon Polymerized Dots. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12224070. [PMID: 36432356 PMCID: PMC9699046 DOI: 10.3390/nano12224070] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/12/2022] [Accepted: 11/17/2022] [Indexed: 06/01/2023]
Abstract
Development of new types of antimicrobial coatings is of utmost importance due to increasing problems with pathogen transmission from various infectious surfaces to human beings. In this study, new types of highly potent antimicrobial polyurethane composite films encapsulated by hydrophobic riboflavin-based carbon polymer dots are presented. Detailed structural, optical, antimicrobial, and cytotoxic investigations of these composites were conducted. Low-power blue light triggered the composites to eradicate Escherichia coli in 30 min, whereas the same effect toward Staphylococcus aureus was reached after 60 min. These composites also show low toxicity against MRC-5 cells. In this way, RF-CPD composites can be used for sterilization of highly touched objects in the healthcare industry.
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Affiliation(s)
- Zoran M. Marković
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Mária Kováčová
- Polymer Institute, Slovak Academy of Sciences, Dúbravská Cestá 9, 84541 Bratislava, Slovakia
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Sanja R. Jeremić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia
| | - Štefan Nagy
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská Cestá 9/6319, 84513 Bratislava, Slovakia
| | - Dušan D. Milivojević
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Pavel Kubat
- J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha, Czech Republic
| | - Angela Kleinová
- Polymer Institute, Slovak Academy of Sciences, Dúbravská Cestá 9, 84541 Bratislava, Slovakia
| | - Milica D. Budimir
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Marija M. Mojsin
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia
| | - Milena J. Stevanović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia
| | - Adriana Annušová
- Department of Multilayers and Nanostructures, Institute of Physics, Slovak Academy of Sciences, Dúbravská Cestá 9, 84541 Bratislava, Slovakia
- Centre for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská Cesta 9, 84511 Bratislava, Slovakia
| | - Zdeno Špitalský
- Polymer Institute, Slovak Academy of Sciences, Dúbravská Cestá 9, 84541 Bratislava, Slovakia
| | - Biljana M. Todorović Marković
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
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8
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Tsouri AM, Robinson D. Reactions of singlet oxygen with cholesterol: a computational study. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2139305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anna M. Tsouri
- Department of Chemistry and Forensics, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - David Robinson
- Department of Chemistry and Forensics, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
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9
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Zhang X, Li H, Liu C, Yuan X. Role of ROS‑mediated autophagy in melanoma (Review). Mol Med Rep 2022; 26:303. [PMID: 35946460 PMCID: PMC9434998 DOI: 10.3892/mmr.2022.12819] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/22/2022] [Indexed: 11/06/2022] Open
Abstract
Melanoma is the most aggressive form of skin cancer with the poorest prognosis and its pathogenesis has yet to be fully elucidated. As key factors that regulate cellular homeostasis, both reactive oxygen species (ROS) and autophagy are involved in the development of melanoma, from melanomagenesis to progression and drug resistance. However, the interaction between ROS and autophagy in the etiology and treatment of melanoma is not well characterized. The present review examined the production of ROS and the role of oxidative stress in melanoma, and summarized the role of ROS‑mediated autophagy in melanomagenesis and melanoma cell fate decision following treatment with various anticancer drugs. The present findings may lead to a better understanding of the pathogenesis and progression of melanoma, and suggest promising treatment options for this disease.
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Affiliation(s)
- Xuebing Zhang
- Department of Dermatology, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, Heilongjiang 150001, P.R. China
| | - Huaijun Li
- Department of Dermatology, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, Heilongjiang 150001, P.R. China
| | - Chengxiang Liu
- Department of Dermatology, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, Heilongjiang 150001, P.R. China
| | - Xingxing Yuan
- Department of Dermatology, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, Heilongjiang 150001, P.R. China
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Zhang Z, Pan B, Wang L, Sun G. Photoactivities of Two Vitamin B Derivatives and Their Applications in the Perpetration of Photoinduced Antibacterial Nanofibrous Membranes. ACS APPLIED BIO MATERIALS 2021; 4:8584-8596. [DOI: 10.1021/acsabm.1c01042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zheng Zhang
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States
| | - Bofeng Pan
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States
| | - Luxin Wang
- Department of Food Science and Technology, University of California, Davis, California 95616, United States
| | - Gang Sun
- Department of Biological and Agricultural Engineering, University of California, Davis, California 95616, United States
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12
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Wong NGK, Rhodes C, Dessent CEH. Photodegradation of Riboflavin under Alkaline Conditions: What Can Gas-Phase Photolysis Tell Us about What Happens in Solution? Molecules 2021; 26:6009. [PMID: 34641554 PMCID: PMC8512791 DOI: 10.3390/molecules26196009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/25/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022] Open
Abstract
The application of electrospray ionisation mass spectrometry (ESI-MS) as a direct method for detecting reactive intermediates is a technique of developing importance in the routine monitoring of solution-phase reaction pathways. Here, we utilise a novel on-line photolysis ESI-MS approach to detect the photoproducts of riboflavin in aqueous solution under mildly alkaline conditions. Riboflavin is a constituent of many food products, so its breakdown processes are of wide interest. Our on-line photolysis setup allows for solution-phase photolysis to occur within a syringe using UVA LEDs, immediately prior to being introduced into the mass spectrometer via ESI. Gas-phase photofragmentation studies via laser-interfaced mass spectrometry of deprotonated riboflavin, [RF - H]-, the dominant solution-phase species under the conditions of our study, are presented alongside the solution-phase photolysis. The results obtained illustrate the extent to which gas-phase photolysis methods can inform our understanding of the corresponding solution-phase photochemistry. We determine that the solution-phase photofragmentation observed for [RF - H]- closely mirrors the gas-phase photochemistry, with the dominant m/z 241 condensed-phase photoproduct also being observed in gas-phase photodissociation. Further gas-phase photoproducts are observed at m/z 255, 212, and 145. The value of exploring both the gas- and solution-phase photochemistry to characterise photochemical reactions is discussed.
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Affiliation(s)
| | | | - Caroline E. H. Dessent
- Department of Chemistry, University of York, Heslington YO10 5DD, UK; (N.G.K.W.); (C.R.)
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Quenching effects of (-)-Epigallocatechin gallate for singlet oxygen production and its protection against oxidative damage induced by Ce6-mediated photodynamic therapy in vitro. Photodiagnosis Photodyn Ther 2021; 36:102467. [PMID: 34333147 DOI: 10.1016/j.pdpdt.2021.102467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Singlet oxygen (1O2) is highly reactive to biological components such as lipids, proteins and DNA, which induces oxidative damage to cells and tissues. Natural antioxidants may function as 1O2 quencher to prevent 1O2 involved photosensitized oxidation in biological system. METHODS Time-resolved measurement of 1O2 luminescence was employed to evaluate the 1O2 quenching abilities of natural antioxidants in air-statured phosphate buffered saline (PBS), including (-)-Epigallocatechin gallate (EGCG), Proanthocyanidins, L-carnosine and Vitamin C. The 1O2 quenching effects and rate constant of EGCG were investigated by detecting the absorption, fluorescence and 1H-NMR spectroscopy and 1O2 luminescence decay curves, respectively. In addition, the protective activity of EGCG against 1O2 oxidative damage caused by Ce6-mediated photodynamic therapy (PDT) was verified in cells. RESULTS EGCG, proanthocyanidins, L-carnosine and Vitamin C efficiently quenched 1O2 luminescence at 1270 nm. The triplet-state quenching rate constants of EGCG for Rose Bengal (RB), Chlorin e6, AlPcS and HiPorfin are 2.21 × 109, 4.90 × 108, 3.30 × 108, 1.78 × 109 M-1s-1, while the 1O2 quenching rate constants are 2.80 × 108, 1.50 × 108, 1.30 × 108, 1.70 × 108 M-1s-1, respectively. Furthermore, EGCG could effectively quench 1O2 production to prevent NIH/3T3 cells oxidative damage induced by Ce6-mediated PDT. CONCLUSIONS EGCG is an efficient quencher for both triplet-state photosensitizers and 1O2. The quenching ability of EGCG during photosensitization for selected photosensitizers is: RB > HiPorfin > Ce6 > AlPcS. EGCG could be used to protect normal cells and tissue against oxidative damage.
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Pinto OHB, Costa FS, Rodrigues GR, da Costa RA, da Rocha Fernandes G, Júnior ORP, Barreto CC. Soil Acidobacteria Strain AB23 Resistance to Oxidative Stress Through Production of Carotenoids. MICROBIAL ECOLOGY 2021; 81:169-179. [PMID: 32617619 DOI: 10.1007/s00248-020-01548-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
Metagenomic studies revealed the prevalence of Acidobacteria in soils, but the physiological and ecological reasons for their success are not well understood. Many Acidobacteria exhibit carotenoid-related pigments, which may be involved in their tolerance of environmental stress. The aim of this work was to investigate the role of the orange pigments produced by Acidobacteria strain AB23 isolated from a savannah-like soil and to identify putative carotenoid genes in Acidobacteria genomes. Phylogenetic analysis revealed that strain AB23 belongs to the Occallatibacter genus from the class Acidobacteriia (subdivision 1). Strain AB23 produced carotenoids in the presence of light and vitamins; however, the growth rate and biomass decreased when cells were exposed to light. The presence of carotenoids resulted in tolerance to hydrogen peroxide. Comparative genomics revealed that all members of Acidobacteriia with available genomes possess the complete gene cluster for phytoene production. Some Acidobacteriia members have an additional gene cluster that may be involved in the production of colored carotenoids. Both colored and colorless carotenoids are involved in tolerance to oxidative stress. These results show that the presence of carotenoid genes is widespread among Acidobacteriia. Light and atmospheric oxygen stimulate carotenoid synthesis, but there are other natural sources of oxidative stress in soils. Tolerance to environmental oxidative stress provided by carotenoids may offer a competitive advantage for Acidobacteria in soils.
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Affiliation(s)
- Otávio Henrique Bezerra Pinto
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasília, SGAN 916 Módulo B Avenida W5 - Asa Norte, Brasília, 70790-160, Brazil
- Laboratory of Enzymology, Institute of Biological Sciences, Department of Cell Biology, University of Brasília, Brasília, 70910-900, Brazil
| | - Flávio Silva Costa
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasília, SGAN 916 Módulo B Avenida W5 - Asa Norte, Brasília, 70790-160, Brazil
- Institute of Microbiology, Friedrich Schiller University Jena, Neugasse 25, 07743, Jena, Germany
| | - Gisele Regina Rodrigues
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasília, SGAN 916 Módulo B Avenida W5 - Asa Norte, Brasília, 70790-160, Brazil
| | - Rosiane Andrade da Costa
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasília, SGAN 916 Módulo B Avenida W5 - Asa Norte, Brasília, 70790-160, Brazil
| | - Gabriel da Rocha Fernandes
- Research Center René Rachou, Oswaldo Cruz Foundation (Fiocruz), Avenida Augusto de Lima 1715, Barro Preto, Belo Horizonte, 30190-002, Brazil
| | - Osmindo Rodrigues Pires Júnior
- Department of Physiological Sciences, Institute of Biological Sciences, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Cristine Chaves Barreto
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasília, SGAN 916 Módulo B Avenida W5 - Asa Norte, Brasília, 70790-160, Brazil.
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Sanabria-de la Torre R, Fernández-González A, Quiñones-Vico MI, Montero-Vilchez T, Arias-Santiago S. Bioengineered Skin Intended as In Vitro Model for Pharmacosmetics, Skin Disease Study and Environmental Skin Impact Analysis. Biomedicines 2020; 8:E464. [PMID: 33142704 PMCID: PMC7694072 DOI: 10.3390/biomedicines8110464] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 02/08/2023] Open
Abstract
This review aims to be an update of Bioengineered Artificial Skin Substitutes (BASS) applications. At the first moment, they were created as an attempt to replace native skin grafts transplantation. Nowadays, these in vitro models have been increasing and widening their application areas, becoming important tools for research. This study is focus on the ability to design in vitro BASS which have been demonstrated to be appropriate to develop new products in the cosmetic and pharmacology industry. Allowing to go deeper into the skin disease research, and to analyze the effects provoked by environmental stressful agents. The importance of BASS to replace animal experimentation is also highlighted. Furthermore, the BASS validation parameters approved by the OECD (Organisation for Economic Co-operation and Development) are also analyzed. This report presents an overview of the skin models applicable to skin research along with their design methods. Finally, the potential and limitations of the currently available BASS to supply the demands for disease modeling and pharmaceutical screening are discussed.
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Affiliation(s)
- Raquel Sanabria-de la Torre
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
| | - Ana Fernández-González
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
| | - María I. Quiñones-Vico
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
| | - Trinidad Montero-Vilchez
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Dermatology Department, Virgen de las Nieves University Hospital, 18014 Granada, Spain
| | - Salvador Arias-Santiago
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
- Dermatology Department, Virgen de las Nieves University Hospital, 18014 Granada, Spain
- Dermatology Department, School of Medicine, Granada University, 18016 Granada, Spain
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16
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Teychené J, Didacus-Prins D, Chouini-Lalanne N, Déjugnat C, Sartor V. Formulation induces direct DNA UV-A photooxidation. Part II. Pro-oxidant effect of formulated Vitamin E via generation of singlet oxygen. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Arndt S, Lissner C, Unger P, Bäumler W, Berneburg M, Karrer S. Biological effects of a new ultraviolet A 1 prototype based on light-emitting diodes on the treatment of localized scleroderma. Exp Dermatol 2020; 29:1199-1208. [PMID: 32592187 DOI: 10.1111/exd.14135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 12/20/2022]
Abstract
Ultraviolet A1 (UVA1 ) phototherapy (spectral range 340-400 nm) is a well-established treatment option for various skin diseases such as localized scleroderma. Recent improvements of conventional UVA1 light sources (metal-halide or fluorescent lamps) have brought attention to a new light-emitting diode (LED) technology with remarkable advantages in handling and clinical routine. This study provides a preclinical histological and molecular evaluation of an LED-based UVA1 prototype with a narrower spectral range (360-400 nm) for treating localized scleroderma. Scleroderma mouse models and fibroblasts in vitro were exposed to LED-based UVA1 phototherapy or to irradiation with a commercially available metal-halide lamp emitting low-dose (20, 40 J/cm2 ), medium-dose (60 J/cm2 ) and high-dose (80, 100 J/cm2 ) UVA1 light. Both UVA1 light sources affected inflammatory genes (IL-1α and IL-6) and growth factors (TGFß-1 and TGFß-2). Increased collagen type 1 was reduced after UVA1 phototherapy. Matrix metalloproteinase-1 was more enhanced after a medium dose of LED-based UVA1 phototherapy than after conventional treatment. In vivo, dermal thickness and the amount of collagen were reduced after both treatment methods. Remarkably, myofibroblasts were more effectively reduced by a medium dose of LED-based UVA1 phototherapy. The study indicates that LED-based UVA1 phototherapy yields similar or even better results than conventional treatment. In terms of biosafety and patient comfort, LED-based UVA1 phototherapy offers clear advantages over conventional treatment because of the use of a narrower and less harmful UVA1 spectrum, less heat generation and shorter treatment times at the same irradiation intensity. Clinical studies are required to confirm these results in patients with localized scleroderma.
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Affiliation(s)
- Stephanie Arndt
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Clara Lissner
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Petra Unger
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Wolfgang Bäumler
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
| | - Sigrid Karrer
- Department of Dermatology, University Medical Center Regensburg, Regensburg, Germany
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18
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Nunn AVW, Guy GW, Botchway SW, Bell JD. From sunscreens to medicines: Can a dissipation hypothesis explain the beneficial aspects of many plant compounds? Phytother Res 2020; 34:1868-1888. [PMID: 32166791 PMCID: PMC7496984 DOI: 10.1002/ptr.6654] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 01/16/2020] [Accepted: 02/16/2020] [Indexed: 12/17/2022]
Abstract
Medicine has utilised plant‐based treatments for millennia, but precisely how they work is unclear. One approach is to use a thermodynamic viewpoint that life arose by dissipating geothermal and/or solar potential. Hence, the ability to dissipate energy to maintain homeostasis is a fundamental principle in all life, which can be viewed as an accretion system where layers of complexity have built upon core abiotic molecules. Many of these compounds are chromophoric and are now involved in multiple pathways. Plants have further evolved a plethora of chromophoric compounds that can not only act as sunscreens and redox modifiers, but also have now become integrated into a generalised stress adaptive system. This could be an extension of the dissipative process. In animals, many of these compounds are hormetic, modulating mitochondria and calcium signalling. They can also display anti‐pathogen effects. They could therefore modulate bioenergetics across all life due to the conserved electron transport chain and proton gradient. In this review paper, we focus on well‐described medicinal compounds, such as salicylic acid and cannabidiol and suggest, at least in animals, their activity reflects their evolved function in plants in relation to stress adaptation, which itself evolved to maintain dissipative homeostasis.
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Affiliation(s)
- Alistair V W Nunn
- Research Centre for Optimal Health, Department of Life Sciences, University of Westminster, London, UK
| | | | - Stanley W Botchway
- STFC, UKRI & Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, UK
| | - Jimmy D Bell
- Research Centre for Optimal Health, Department of Life Sciences, University of Westminster, London, UK
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19
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Dos Anjos Oliveira Ferreira L, de Paula Barros de Melo C, Saito P, Iwanaga CC, Nakamura CV, Casagrande R, da Conceição Torrado Truiti M. Nectandra cuspidata fraction and the isolated polyphenols protect fibroblasts and hairless mice skin from UVB-induced inflammation and oxidative stress. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 205:111824. [PMID: 32126496 DOI: 10.1016/j.jphotobiol.2020.111824] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 02/03/2020] [Accepted: 02/17/2020] [Indexed: 12/17/2022]
Abstract
Excessive exposure to UVB radiation can lead to oxidative and inflammatory damage that compromises the cutaneous integrity. The application on the skin of photochemoprotective products is considered a relevant approach for the prevention of oxidative damage. In this study the in vitro and in vivo photochemoprotective effects of antioxidant plant materials obtained from the leaves of Nectandra cuspidata Nees following UVB irradiation were evaluated. The cytoprotective effect, reactive oxygen species (ROS) production and lipid peroxidation (LPO) were assessed in L-929 fibroblasts treated with the ethyl acetate fraction (EAF) or isolated compounds (epicatechin, isovitexin and vitexin) before or after irradiation with UVB (500 mJ/cm2). EAF substantially reduced the dead of cells and inhibited the UVB-induced ROS production and LPO in both treatments, compared with the irradiated untreated fibroblasts, presenting effects similar or better than pure compounds. The in vivo photochemoprotective effects of a topical emulsion containing 1% EAF (F2) were evaluated in hairless mice exposed to UVB. F2 improved all evaluated parameters in the skin of animals, inhibited ROS production, increased antioxidant defenses by decreasing reduced glutathione (GSH) and catalase depletion, reduced the activities of metalloproteinases (MMP-2 and MMP-9) and myeloperoxidase, decreased epidermal thickness and skin edema, and inhibited the appearance of sunburn cells as well as the recruitment of neutrophils and mast cell inflammatory infiltrates. These findings show that EAF presents high photochemoprotective effects, and that a topical formulation containing it may have potential for skin care.
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Affiliation(s)
- Lilian Dos Anjos Oliveira Ferreira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Avenida Colombo, 5790, 87020-900 Maringá, Paraná, Brazil
| | - Cristina de Paula Barros de Melo
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Avenida Robert Koch, 60, Hospital Universitário, 86038-350 Londrina, Paraná, Brazil
| | - Priscila Saito
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Avenida Robert Koch, 60, Hospital Universitário, 86038-350 Londrina, Paraná, Brazil
| | - Camila Cristina Iwanaga
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Avenida Colombo, 5790, 87020-900 Maringá, Paraná, Brazil
| | - Celso Vataru Nakamura
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Avenida Colombo, 5790, 87020-900 Maringá, Paraná, Brazil
| | - Rúbia Casagrande
- Departamento de Ciências Farmacêuticas, Universidade Estadual de Londrina, Avenida Robert Koch, 60, Hospital Universitário, 86038-350 Londrina, Paraná, Brazil
| | - Maria da Conceição Torrado Truiti
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Avenida Colombo, 5790, 87020-900 Maringá, Paraná, Brazil.
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20
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Hoenes K, Wenzel U, Spellerberg B, Hessling M. Photoinactivation Sensitivity of
Staphylococcus carnosus
to Visible‐light Irradiation as a Function of Wavelength. Photochem Photobiol 2019; 96:156-169. [DOI: 10.1111/php.13168] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Katharina Hoenes
- Institute of Medical Engineering and Mechatronics Ulm University of Applied Sciences Ulm Germany
| | - Ulla Wenzel
- Institute of Medical Engineering and Mechatronics Ulm University of Applied Sciences Ulm Germany
| | | | - Martin Hessling
- Institute of Medical Engineering and Mechatronics Ulm University of Applied Sciences Ulm Germany
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21
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Benzofuran hydrazones as potential scaffold in the development of multifunctional drugs: Synthesis and evaluation of antioxidant, photoprotective and antiproliferative activity. Eur J Med Chem 2018; 156:118-125. [PMID: 30006157 DOI: 10.1016/j.ejmech.2018.07.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 06/29/2018] [Accepted: 07/01/2018] [Indexed: 02/06/2023]
Abstract
New benzofuranhydrazones 3-12 were easily prepared and assayed for their radical-scavenging ability. Hydrazones 3-12 showed different extent antioxidant activity in DPPH, FRAP and ORAC assays. Good antioxidant activity is related to the number and position of hydroxyl groups on the arylidene moiety. High antioxidant activity is showed by the 2-hydroxy-4-(diethylamino)benzylidene derivative 11. Furthermore, hydrazones 3-12 showed photoprotective capacities with satisfactory in vitro SPF as compared to the commercial PBSA sunscreen filter. The antiproliferative effects of the hydrazones 3-12 was tested on erythroleukemia K562 and Colo-38 melanoma human cells. All the compounds showed growth inhibition in the micromolar to sub micromolar concentration range. If taken together these results points to benzofuran hydrazones as potential multifunctional molecules especially in the treatment of neoplastic diseases being the good antioxidant properties of 5, 7 and 11 correlated to their high antiproliferative activity.
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22
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Kamenisch Y, Ivanova I, Drexler K, Berneburg M. UVA, metabolism and melanoma: UVA makes melanoma hungry for metastasis. Exp Dermatol 2018; 27:941-949. [PMID: 29658146 DOI: 10.1111/exd.13561] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2018] [Indexed: 12/13/2022]
Abstract
Ultraviolet (UV) radiation has a plethora of effects on human tissues. In the UV spectrum, wavelengths above 320 nm fall into the UVA range, and for these, it has been shown that they induce reactive oxygen species (ROS), DNA mutations and are capable to induce melanoma in mice. In addition to this, it was recently shown that UVA irradiation and UVA-induced ROS also increase glucose metabolism of melanoma cells. UVA irradiation causes a persistent increase in glucose consumption, accompanied by increased glycolysis, increased lactic acid production and activation of the pentose phosphate pathway. Furthermore, it was shown that the enhanced secretion of lactic acid is important for invasion of melanoma in vitro. The current knowledge of this link between UVA, metabolism and melanoma, possible mechanisms of UVA-induced glucose metabolism and their starting points are discussed in this review with focus on ROS- and UVA-induced cellular stress signalling, DNA damage signalling and DNA repair systems. When looking at the benefits of UVA-induced glucose metabolism, it becomes apparent that there are more advantages of these metabolic changes than one would expect. Besides the role of lactic acid as initiator of protease expression and invasion, its role for immune escape of melanoma cells and the pentose phosphate pathway-derived nicotinamide adenine dinucleotide phosphate (NADPH) as part of a ROS detoxification strategy are discussed.
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Affiliation(s)
- York Kamenisch
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Irina Ivanova
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Konstantin Drexler
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
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23
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Xu CF, Chen Y, Yi L, Brantley T, Stanley B, Sosic Z, Zang L. Discovery and Characterization of Histidine Oxidation Initiated Cross-links in an IgG1 Monoclonal Antibody. Anal Chem 2017. [DOI: 10.1021/acs.analchem.7b00860] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chong-Feng Xu
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
| | - Yunqiu Chen
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
| | - Linda Yi
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
| | - Tim Brantley
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
| | - Brad Stanley
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
| | - Zoran Sosic
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
| | - Li Zang
- Analytical
Development, ‡Cell Culture Development, and §Process Biochemistry, Biogen, Cambridge, Massachusetts 02142, United States
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24
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Bino A, Baldisserotto A, Scalambra E, Dissette V, Vedaldi DE, Salvador A, Durini E, Manfredini S, Vertuani S. Design, synthesis and biological evaluation of novel hydroxy-phenyl-1H-benzimidazoles as radical scavengers and UV-protective agents. J Enzyme Inhib Med Chem 2017; 32:527-537. [PMID: 28114824 PMCID: PMC6010047 DOI: 10.1080/14756366.2016.1265523] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
An ever-increasing incidence of skin neoplastic diseases is registered. Therefore, it is important to protect the skin from the UV radiation that reaches the epidermis and dermis but also to block ROS generated by them. Our attention was attracted in developing new compounds provided with both UV filtering and antioxidant capacities. To this end, 2-phenyl-1H-benzimidazole-5-sulfonic acid (PBSA), a known UV filter, was selected as lead compound for its lack of antioxidant activity, high water solubility and good safety profile. PBSA was sequentially modified introducing hydroxyls on the phenyl ring and also substituting the functional group in position 5 of the benzimidazole ring. At the end of the synthetic study, a new, very potent class of antioxidants has been obtained. Surprisingly some of the developed molecules, while devoid of significant UV-filtering activity was endowed with potent UV-filtering booster capability if associated with known commercial UVB and UVA filters.
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Affiliation(s)
- Alessia Bino
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
| | - Anna Baldisserotto
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
| | - Emanuela Scalambra
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
| | - Valeria Dissette
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
| | - Daniela Ester Vedaldi
- b Department of Pharmaceutical and Pharmacological Sciences , University of Padua , Padua , Italy
| | - Alessia Salvador
- b Department of Pharmaceutical and Pharmacological Sciences , University of Padua , Padua , Italy
| | - Elisa Durini
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
| | - Stefano Manfredini
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
| | - Silvia Vertuani
- a Department of Life Sciences and Biotechnology, School of Pharmacy and Health Products , University of Ferrara, Master Course in Cosmetic Sciences and Technology, Laboratory of Health Products , Ferrara , Italy
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25
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Endogenous Generation of Singlet Oxygen and Ozone in Human and Animal Tissues: Mechanisms, Biological Significance, and Influence of Dietary Components. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:2398573. [PMID: 27042259 PMCID: PMC4799824 DOI: 10.1155/2016/2398573] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 02/08/2016] [Indexed: 12/18/2022]
Abstract
Recent studies have shown that exposing antibodies or amino acids to singlet oxygen results in the formation of ozone (or an ozone-like oxidant) and hydrogen peroxide and that human neutrophils produce both singlet oxygen and ozone during bacterial killing. There is also mounting evidence that endogenous singlet oxygen production may be a common occurrence in cells through various mechanisms. Thus, the ozone-producing combination of singlet oxygen and amino acids might be a common cellular occurrence. This paper reviews the potential pathways of formation of singlet oxygen and ozone in vivo and also proposes some new pathways for singlet oxygen formation. Physiological consequences of the endogenous formation of these oxidants in human tissues are discussed, as well as examples of how dietary factors may promote or inhibit their generation and activity.
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26
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Buglak AA, Telegina TA, Kritsky MS. A quantitative structure–property relationship (QSPR) study of singlet oxygen generation by pteridines. Photochem Photobiol Sci 2016; 15:801-11. [DOI: 10.1039/c6pp00084c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Singlet oxygen production quantum yields of pteridine photosensitizers were analyzed with the QSPR method. The ability of pterins and flavins to generate1O2in D2O correlated withEHOMOand electronegativity, as well as with the dipole moment and some other parameters.
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Affiliation(s)
- Andrey A. Buglak
- A.N. Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | - Taisiya A. Telegina
- A.N. Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | - Mikhail S. Kritsky
- A.N. Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
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27
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Graindorge D, Martineau S, Machon C, Arnoux P, Guitton J, Francesconi S, Frochot C, Sage E, Girard PM. Singlet Oxygen-Mediated Oxidation during UVA Radiation Alters the Dynamic of Genomic DNA Replication. PLoS One 2015; 10:e0140645. [PMID: 26485711 PMCID: PMC4618472 DOI: 10.1371/journal.pone.0140645] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 09/29/2015] [Indexed: 02/07/2023] Open
Abstract
UVA radiation (320–400 nm) is a major environmental agent that can exert its deleterious action on living organisms through absorption of the UVA photons by endogenous or exogenous photosensitizers. This leads to the production of reactive oxygen species (ROS), such as singlet oxygen (1O2) and hydrogen peroxide (H2O2), which in turn can modify reversibly or irreversibly biomolecules, such as lipids, proteins and nucleic acids. We have previously reported that UVA-induced ROS strongly inhibit DNA replication in a dose-dependent manner, but independently of the cell cycle checkpoints activation. Here, we report that the production of 1O2 by UVA radiation leads to a transient inhibition of replication fork velocity, a transient decrease in the dNTP pool, a quickly reversible GSH-dependent oxidation of the RRM1 subunit of ribonucleotide reductase and sustained inhibition of origin firing. The time of recovery post irradiation for each of these events can last from few minutes (reduction of oxidized RRM1) to several hours (replication fork velocity and origin firing). The quenching of 1O2 by sodium azide prevents the delay of DNA replication, the decrease in the dNTP pool and the oxidation of RRM1, while inhibition of Chk1 does not prevent the inhibition of origin firing. Although the molecular mechanism remains elusive, our data demonstrate that the dynamic of replication is altered by UVA photosensitization of vitamins via the production of singlet oxygen.
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Affiliation(s)
- Dany Graindorge
- CNRS UMR 3348, Stress Génotoxiques et Cancer, Orsay, France
- Curie Institute, PSL Research University, Orsay, France
| | - Sylvain Martineau
- CNRS UMR 3348, Stress Génotoxiques et Cancer, Orsay, France
- Curie Institute, PSL Research University, Orsay, France
| | - Christelle Machon
- Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Laboratoire de biochimie-toxicologie, Pierre Bénite, France
- Laboratoire de chimie analytique, Université Lyon 1, ISPBL, Faculté de pharmacie, Lyon, France
| | - Philippe Arnoux
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), Nancy, France
- CNRS, UMR7274, Nancy, France
| | - Jérôme Guitton
- Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Laboratoire de biochimie-toxicologie, Pierre Bénite, France
- Laboratoire de Toxicologie, Université Lyon 1, ISPBL, Faculté de pharmacie, Lyon, France
| | - Stefania Francesconi
- CNRS UMR 3348, Stress Génotoxiques et Cancer, Orsay, France
- Curie Institute, PSL Research University, Orsay, France
| | - Céline Frochot
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), Nancy, France
- CNRS, UMR7274, Nancy, France
| | - Evelyne Sage
- CNRS UMR 3348, Stress Génotoxiques et Cancer, Orsay, France
- Curie Institute, PSL Research University, Orsay, France
| | - Pierre-Marie Girard
- CNRS UMR 3348, Stress Génotoxiques et Cancer, Orsay, France
- Curie Institute, PSL Research University, Orsay, France
- * E-mail:
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28
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Eichner A, Gollmer A, Späth A, Bäumler W, Regensburger J, König B, Maisch T. Fast and effective inactivation of Bacillus atrophaeus endospores using light-activated derivatives of vitamin B2. Photochem Photobiol Sci 2015; 14:387-96. [PMID: 25423452 DOI: 10.1039/c4pp00285g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly resistant endospores may cause severe problems in medicine as well as in the food and packaging industries. We found that bacterial endospores can be inactivated quickly with reactive oxygen species (ROS) that were generated by a new generation of flavin photosensitizers. Flavins like the natural compound vitamin B2 are already known to produce ROS but they show a poor antimicrobial photodynamic killing efficacy due to the lack of positive charges. Therefore we synthesized new flavin photosensitizers that have one (FLASH-01a) or eight (FLASH-07a) positive charges and can hence attach to the negatively charged surface of endospores. In this study we used standardized Bacillus atrophaeus endospores (ATCC 9372) as a biological surrogate model for a proof-of-concept study of photodynamic inactivation experiments using FLASH-01a and FLASH-07a. After incubation of spores with different flavin concentrations, the flavin derivatives were excited with blue light at a light dose of 70 J cm(-2). The inactivation of spores was investigated either in suspension or after attachment to polyethylene terephthalate (PET) surfaces. Incubation of spores suspended in Millipore water with 4 mM FLASH-01a for 10 seconds and irradiation with blue light for 10 seconds caused a biologically relevant decrease of spore survival of 3.5 log10 orders. Using FLASH-07a under the same conditions we achieved a decrease of 4.4 log10 orders. Immobilized spores on PET surfaces were efficiently killed with 7.0 log10 orders using 8 mM FLASH-07a. The total treatment time (incubation + irradiation) was as short as 20 seconds. The results of this study show evidence that endospores can be fastly and effectively inactivated with new generations of flavin photosensitizers that may be useful for industrial or medical applications in the future.
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Affiliation(s)
- Anja Eichner
- Department of Dermatology, Regensburg University Hospital, 93053 Regensburg, Germany.
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Kranz S, Huebsch M, Guellmar A, Voelpel A, Tonndorf-Martini S, Sigusch BW. Antibacterial photodynamic treatment of periodontopathogenic bacteria with indocyanine green and near-infrared laser light enhanced by TroloxTM. Lasers Surg Med 2015; 47:350-60. [DOI: 10.1002/lsm.22336] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2014] [Indexed: 12/21/2022]
Affiliation(s)
- Stefan Kranz
- Polyclinic for Conservative Dentistry and Periodontology; University Hospital Jena, An der alten Post 4; Jena 07743 Germany
| | - Marie Huebsch
- Polyclinic for Prosthetic Dentistry and Material Science; University Hospital Jena, An der alten Post 4; Jena 07743 Germany
| | - Andre Guellmar
- Polyclinic for Conservative Dentistry and Periodontology; University Hospital Jena, An der alten Post 4; Jena 07743 Germany
| | - Andrea Voelpel
- Polyclinic for Conservative Dentistry and Periodontology; University Hospital Jena, An der alten Post 4; Jena 07743 Germany
| | - Silke Tonndorf-Martini
- Polyclinic for Conservative Dentistry and Periodontology; University Hospital Jena, An der alten Post 4; Jena 07743 Germany
| | - Bernd W. Sigusch
- Polyclinic for Conservative Dentistry and Periodontology; University Hospital Jena, An der alten Post 4; Jena 07743 Germany
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Li ZY, Jiang WY, Cui ZJ. An essential role of NAD(P)H oxidase 2 in UVA-induced calcium oscillations in mast cells. Photochem Photobiol Sci 2015; 14:414-28. [PMID: 25460548 DOI: 10.1039/c4pp00304g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Solar UVA radiation (320-400 nm) is known to have immunomodulatory effects, but the detailed mechanisms involved are not fully elucidated. UVA irradiation has been shown to induce calcium oscillations in rat peritoneal mast cells due to NAD(P)H oxidase (NOX) activation, but the specific NOX isoforms have not been identified. In the present work effects of UVA irradiation were investigated in isolated rat peritoneal mast cells, in cultured rat mast cell line RBL-2H3, and in mouse bone marrow-derived mast cells (BMMC). It was found that UVA irradiation by alternate 340/380 nm (3.2-5.6 μW cm(-2)) or by LED (380 nm, 80 μW cm(-2)) induced calcium oscillations in isolated rat peritoneal mast cells, in RBL-2H3, and in BMMC. Such UVA-induced calcium oscillations resembled closely those induced by surface IgE receptor (FcεRI) activation. It was found that RBL-2H3 expressed high levels of gp91(phox) (NOX2), p22(phox), p67(phox), p47(phox), p40(phox), Rac1, Rac2, moderate levels of DUOX2, but did not express NOX1, NOX3, NOX4, or DUOX1. The specific cellular localizations of gp91(phox) (NOX2), p22(phox), p47(phox), p67(phox), p40(phox) and Rac1/2 were confirmed by immunocytochemistry. UVA-induced reactive oxygen species (ROS) production in RBL-2H3 was completely suppressed by the NOX inhibitor diphenyleneiodonium chloride (DPI) or by the antioxidant N-acetyl-l-cysteine (NAC). siRNA suppression of gp91(phox) (NOX2), p22(phox) and p47(phox) expression inhibited markedly UVA-induced calcium oscillations, ROS and IL-6/LTC4 production in RBL-2H3. Taken together these data indicate that NOX2 plays an essential role in UVA irradiation-induced calcium oscillations, ROS and mediator production in mast cells.
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Affiliation(s)
- Zhi Ying Li
- Institute of Cell Biology, Beijing Normal University, Beijing 100875, China.
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Lehner P, Staudinger C, Borisov SM, Regensburger J, Klimant I. Intrinsic Artefacts in Optical Oxygen Sensors-How Reliable are our Measurements? Chemistry 2015; 21:3978-86. [DOI: 10.1002/chem.201406037] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Indexed: 11/07/2022]
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