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Madayanad Suresh S, Zhang L, Hall D, Si C, Ricci G, Matulaitis T, Slawin AMZ, Warriner S, Olivier Y, Samuel IDW, Zysman-Colman E. A Deep-Blue-Emitting Heteroatom-Doped MR-TADF Nonacene for High-Performance Organic Light-Emitting Diodes. Angew Chem Int Ed Engl 2023; 62:e202215522. [PMID: 36480790 PMCID: PMC10107802 DOI: 10.1002/anie.202215522] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/13/2022]
Abstract
We present a p- and n-doped nonacene compound, NOBNacene, that represents a rare example of a linearly extended ladder-type multiresonant thermally activated delayed fluorescence (MR-TADF) emitter. This compound shows efficient narrow deep blue emission, with a λPL of 410 nm, full width at half maximum, FWHM, of 38 nm, photoluminescence quantum yield, ΦPL of 71 %, and a delayed lifetime, τd of 1.18 ms in 1.5 wt % TSPO1 thin film. The organic light-emitting diode (OLED) using this compound as the emitter shows a comparable electroluminescence spectrum peaked at 409 nm (FWHM=37 nm) and a maximum external quantum efficiency (EQEmax ) of 8.5 % at Commission Internationale de l'Éclairage (CIE) coordinates of (0.173, 0.055). The EQEmax values were increased to 11.2 % at 3 wt % doping of the emitter within the emissive layer of the device. At this concentration, the electroluminescence spectrum broadened slightly, leading to CIE coordinates of (0.176, 0.068).
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Affiliation(s)
- Subeesh Madayanad Suresh
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Le Zhang
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.,Organic Semiconductor Centre, SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK
| | - David Hall
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Changfeng Si
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Gaetano Ricci
- Laboratory for Computational Modeling of Functional Materials & Solid State Physics Laboratory, Namur Institute of Structured Matter, University of Namur, Rue de Bruxelles, 61, 5000, Namur, Belgium
| | - Tomas Matulaitis
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Alexandra M Z Slawin
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Stuart Warriner
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Yoann Olivier
- Laboratory for Computational Modeling of Functional Materials & Solid State Physics Laboratory, Namur Institute of Structured Matter, University of Namur, Rue de Bruxelles, 61, 5000, Namur, Belgium
| | - Ifor D W Samuel
- Organic Semiconductor Centre, SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK
| | - Eli Zysman-Colman
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
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Peters AF, Kusche Y, Gerdkamp H, Nattkemper E, Vischedyk K, Münck NA, Weishaupt C, Roth J, Barczyk-Kahlert K, Sunderkötter C, Ehrchen JM. UVA1 radiation attenuates pro-inflammatory functions in human monocytes. J Dermatol 2023; 50:46-56. [PMID: 36184911 DOI: 10.1111/1346-8138.16600] [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: 12/21/2021] [Revised: 08/22/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022]
Abstract
UVA1 therapy is effective in the treatment of inflammatory and autoimmune skin diseases. The mode of action of UVA1 therapy is not completely understood and especially data on cells of the innate immune system like monocytes, which are critically involved in many inflammatory processes, are sparse. We wanted to answer the question whether UVA1 irradiation alters functional properties of human monocytes. We treated human peripheral blood monocytes in vitro with 2 J/cm2 UVA1 light, incubated the cells for 48 h and examined both functional properties and alterations in the gene and protein expression profile. While UVA1 did not alter cell viability or susceptibility to apoptosis inducing agents, it decreased the capacity of monocytes for phagocytosis and to eliminate infectious agents like Leishmania major. Moreover, we measured a significantly reduced production of interleukin (IL)-1β mRNA in lipopolysaccharide activated monocytes after UVA1 treatment. Importantly, UVA1-treated monocytes not only produce less IL-1β, but also upregulate expression of the anti-inflammatory IL-1β decoy receptor. Our data provide evidence that UVA1 radiation not only interferes with fundamental monocyte properties like phagocytosis, pathogen killing and activation, but could also specifically attenuate pro-inflammatory IL-1 effects. This might constitute a hitherto unknown anti-inflammatory mechanism of UVA1 in human monocytes.
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Affiliation(s)
- Anna Franziska Peters
- Department of Dermatology, University of Münster, Münster, Germany.,Institute of Immunology, University of Münster, Münster, Germany
| | - Yvonne Kusche
- Department of Dermatology, University of Münster, Münster, Germany.,Institute of Immunology, University of Münster, Münster, Germany
| | - Henrike Gerdkamp
- Institute of Immunology, University of Münster, Münster, Germany
| | - Eva Nattkemper
- Department of Dermatology, University of Münster, Münster, Germany
| | - Kerstin Vischedyk
- Department of Dermatology, University of Münster, Münster, Germany.,Institute of Immunology, University of Münster, Münster, Germany
| | - Niels-Arne Münck
- Department of Dermatology, University of Münster, Münster, Germany.,Institute of Immunology, University of Münster, Münster, Germany
| | | | - Johannes Roth
- Institute of Immunology, University of Münster, Münster, Germany
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Ikumi K, Kio T, Torii K, Masuda H, Morita A. Successful treatment of dyshidrotic palmoplantar eczema with ultraviolet A1 light-emitting diodes. J Dermatol 2020; 47:922-923. [PMID: 32441347 PMCID: PMC7497185 DOI: 10.1111/1346-8138.15402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/20/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Kyoko Ikumi
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tomohiko Kio
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,R&D Group, Biomedical Division, USHIO INC, Tokyo, Japan
| | - Kan Torii
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideyuki Masuda
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,R&D Group, Biomedical Division, USHIO INC, Tokyo, Japan
| | - Akimichi Morita
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Yang MF, Baron ED. Update on the immunology of UV and visible radiation therapy: phototherapy, photochemotherapy and photodynamic therapy. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/17469872.3.1.85] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Huang L, Wang M, Dai T, Sperandio FF, Huang YY, Xuan Y, Chiang LY, Hamblin MR. Antimicrobial photodynamic therapy with decacationic monoadducts and bisadducts of [70]fullerene: in vitro and in vivo studies. Nanomedicine (Lond) 2013; 9:253-66. [PMID: 23738632 DOI: 10.2217/nnm.13.22] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Antimicrobial photodynamic therapy uses photosensitizers designed to bind to microorganisms and generate reactive oxygen species when illuminated with visible light. MATERIALS & METHODS We synthesized a highly water-soluble [70]fullerene monoadduct, C70[>M(C3N6(+)C3)2]-(I(-))10 (LC17), and bisadduct, C70[>M(C3N6(+)C3)2][>M(C3N6C3)2] (LC18), both with a well-defined decacationic quaternary ammonium iodide moiety with ten positive charges per C70 to give water solubility and bacterial binding. We determined the antimicrobial effects against human pathogens, Gram-positive (Staphylococcus aureus) and Gram-negative species (Escherichia coli and Acinetobacter baumannii) when activated by UVA or white light. RESULTS White light was more effective with LC17, while UVA light was more effective with LC18. Both compounds were effective in a mouse model of Gram-negative third-degree burn infections determined by bioluminescence imaging. DISCUSSION & CONCLUSION We propose that the attachment of an additional deca(tertiary-ethylenylamino)malonate arm to C70 allowed the moiety to act as a potent electron donor and increased the generation yield of hydroxyl radicals under UVA illumination.
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Affiliation(s)
- Liyi Huang
- Department of Infectious Diseases, First Affiliated College & Hospital, Guangxi Medical University, Nanning, 530021, China
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Juzeniene A, Moan J. Beneficial effects of UV radiation other than via vitamin D production. DERMATO-ENDOCRINOLOGY 2012; 4:109-17. [PMID: 22928066 PMCID: PMC3427189 DOI: 10.4161/derm.20013] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Most of the positive effects of solar radiation are mediated via ultraviolet-B (UVB) induced production of vitamin D in skin. However, several other pathways may exist for the action of ultraviolet (UV) radiation on humans as focused on in this review. One is induction of cosmetic tanning (immediate pigment darkening, persistent pigment darkening and delayed tanning). UVB-induced, delayed tanning (increases melanin in skin after several days), acts as a sunscreen. Several human skin diseases, like psoriasis, vitiligo, atopic dermatitis and localized scleroderma, can be treated with solar radiation (heliotherapy) or artificial UV radiation (phototherapy). UV exposure can suppress the clinical symptoms of multiple sclerosis independently of vitamin D synthesis. Furthermore, UV generates nitric oxide (NO), which may reduce blood pressure and generally improve cardiovascular health. UVA-induced NO may also have antimicrobial effects and furthermore, act as a neurotransmitter. Finally, UV exposure may improve mood through the release of endorphins.
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Gruber F, Bicker W, Oskolkova OV, Tschachler E, Bochkov VN. A simplified procedure for semi-targeted lipidomic analysis of oxidized phosphatidylcholines induced by UVA irradiation. J Lipid Res 2012; 53:1232-42. [PMID: 22414483 DOI: 10.1194/jlr.d025270] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Oxidized phospholipids (OxPLs) are increasingly recognized as signaling mediators that are not only markers of oxidative stress but are also "makers" of pathology relevant to disease pathogenesis. Understanding the biological role of individual molecular species of OxPLs requires the knowledge of their concentration kinetics in cells and tissues. In this work, we describe a straightforward "fingerprinting" procedure for analysis of a broad spectrum of molecular species generated by oxidation of the four most abundant species of polyunsaturated phosphatidylcholines (OxPCs). The approach is based on liquid-liquid extraction followed by reversed-phase HPLC coupled to electrospray ionization MS/MS. More than 500 peaks corresponding in retention properties to polar and oxidized PCs were detected within 8 min at 99 m/z precursor values using a single diagnostic product ion in extracts from human dermal fibroblasts. Two hundred seventeen of these peaks were fluence-dependently and statistically significantly increased upon exposure of cells to UVA irradiation, suggesting that these are genuine oxidized or oxidatively fragmented species. This method of semitargeted lipidomic analysis may serve as a simple first step for characterization of specific "signatures" of OxPCs produced by different types of oxidative stress in order to select the most informative peaks for identification of their molecular structure and biological role.
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Affiliation(s)
- Florian Gruber
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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Musson REA, Hensbergen PJ, Westphal AH, Temmink WPM, Deelder AM, van Pelt J, Mullenders LHF, Smit NPM. UVA1 radiation inhibits calcineurin through oxidative damage mediated by photosensitization. Free Radic Biol Med 2011; 50:1392-9. [PMID: 21354304 DOI: 10.1016/j.freeradbiomed.2011.02.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 02/14/2011] [Accepted: 02/15/2011] [Indexed: 12/21/2022]
Abstract
The protein phosphatase calcineurin has been gradually revealing itself as the central controller of our immune response, although it is involved in a wide array of signaling pathways related to cellular development and cell cycle progression. As such, calcineurin is an attractive, yet delicate, therapeutic target for the prevention of allograft rejection and treatment of several inflammatory skin conditions. However, calcineurin activity is not only sensitive to immunosuppressants such as cyclosporin A and tacrolimus, but also subject to modulation by reactive oxygen species. We have recently shown, both in vivo and in vitro, that UVA1 radiation suppresses calcineurin activity. In this paper, we present evidence that this activity loss is due to singlet oxygen and superoxide generated by photosensitization and show that a closely related phosphatase, PP2A, is not affected. Furthermore, a survey of this damage reveals oxidation of several Met and Cys residues as well as an overall conformational change. These findings provide a mechanistic basis for the hypothesis that UVA1 and calcineurin inhibitors both affect the same signal transduction pathway in skin.
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Affiliation(s)
- Ruben E A Musson
- Department of Clinical Chemistry, Leiden University Medical Center, Leiden, The Netherlands.
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Kubanov AA, Avdienko IN. The influence of low and moderate doses of ultraviolet irradiation produced by the UFA-1 device possessing the wavelength of 350 to 400 nm on the parameters of skin inflammation in patients suffering atopic dermatitis. VESTNIK DERMATOLOGII I VENEROLOGII 2011. [DOI: 10.25208/vdv932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The performed investigation has shown that there is an increase of the content of CD4+ lymphocytes and an increased expression of γ-interferon in the skin of patients with atopic dermatitis comparing to healthy volunteers. Therapy with the use of UFA-1 produced more marked levels of γ-interferon positive cells in the skin (р = 0.004) in patients with clinical recovery compared to subjects with an achieved improvement, as well as a substantial reduction of the Т-helpers level within the effected skin areas (р = 0.009).
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Smit N, Musson R, Romijn F, van Rossum H, van Pelt J. Effects of Ultraviolet A-1 Radiation on Calcineurin Activity and Cytokine Production in (Skin) Cell Cultures. Photochem Photobiol 2010; 86:360-6. [DOI: 10.1111/j.1751-1097.2009.00650.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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12
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Gruber F, Mayer H, Lengauer B, Mlitz V, Sanders JM, Kadl A, Bilban M, Martin R, Wagner O, Kensler TW, Yamamoto M, Leitinger N, Tschachler E. NF‐E2‐related factor 2 regulates the stress response to UVA‐1‐oxidized phospholipids in skin cells. FASEB J 2009; 24:39-48. [DOI: 10.1096/fj.09-133520] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Florian Gruber
- Department of DermatologyMedical University of ViennaViennaAustria
- Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Herbert Mayer
- Department of Vascular Biology and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - Barbara Lengauer
- Department of DermatologyMedical University of ViennaViennaAustria
| | - Veronika Mlitz
- Department of DermatologyMedical University of ViennaViennaAustria
| | - John M. Sanders
- Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Alexandra Kadl
- Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Martin Bilban
- Department of Laboratory MedicineMedical University of ViennaViennaAustria
| | - Rainer Martin
- Department of Vascular Biology and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - Oswald Wagner
- Department of Laboratory MedicineMedical University of ViennaViennaAustria
| | - Thomas W. Kensler
- Department of Environmental Health SciencesJohns Hopkins University Bloomberg School of Public HealthBaltimoreMarylandUSA
| | | | - Norbert Leitinger
- Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Erwin Tschachler
- Department of DermatologyMedical University of ViennaViennaAustria
- Centre de Recherches et d'Investigations Epidermiques et SensoriellesNeuillyFrance
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Prevention and management of hypertrophic scars and keloids after burns in children. J Craniofac Surg 2008; 19:989-1006. [PMID: 18650721 DOI: 10.1097/scs.0b013e318175f3a7] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Hypertrophic scars and keloids are challenging to manage, particularly as sequelae of burns in children in whom the psychologic burden and skin characteristics differ substantially from adults. Prevention of hypertrophic scars and keloids after burns is currently the best strategy in their management to avoid permanent functional and aesthetical alterations. Several actions can be taken to prevent their occurrence, including parental and children education regarding handling sources of fire and flammable materials, among others. Combination of therapies is the mainstay of current burn scar management, including surgical reconstruction, pressure therapy, silicon gels and sheets, and temporary garments. Other adjuvant therapies such as topical imiquimod, tacrolimus, and retinoids, as well as intralesional corticosteroids, 5-fluorouracil, interferons, and bleomycin, have been used with relative success. Cryosurgery and lasers have also been reported as alternatives. Newer treatments aimed at molecular targets such as cytokines, growth factors, and gene therapy, currently in developing stages, are considered the future of the treatment of postburn hypertrophic scars and keloids in children.
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The role of phospholipid oxidation products in inflammatory and autoimmune diseases: evidence from animal models and in humans. Subcell Biochem 2008; 49:325-50. [PMID: 18751917 DOI: 10.1007/978-1-4020-8830-8_12] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Since the discovery of oxidized phospholipids (OxPL) and their implication as modulators of inflammation in cardiovascular disease, roles for these lipid oxidation products have been suggested in many other disease settings. Lipid oxidation products accumulate in inflamed and oxidatively damaged tissue, where they are derived from oxidative modification of lipoproteins, but also from membranes of cells undergoing apoptosis. Thus, increased oxidative stress as well as decreased clearance of apoptotic cells has been implied to contribute to accumulation of OxPL in chronically inflamed tissues.A central role for OxPL in disease states associated with dyslipedemia, including atherosclerosis, diabetes and its complications, metabolic syndrome, and renal insufficiency, as well as general prothrombotic states, has been proposed. In addition, in organs which are constantly exposed to oxidative stress, including lung, skin, and eyes, increased levels of OxPL are suggested to contribute to inflammatory conditions. Moreover, accumulation of OxPL causes general immunmodulation and may lead to autoimmune diseases. Evidence is accumulating that OxPL play a role in lupus erythematosus, antiphospholipid syndrome, and rheumatoid arthritis. Last but not least, a role for OxPL in neurological disorders including multiple sclerosis (MS), Alzheimer's and Parkinson's disease has been suggested.This chapter will summarize recent findings obtained in animal models and from studies in humans that indicate that formation of OxPL represents a general mechanism that may play a major role in chronic inflammatory and autoimmune diseases.
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Gruber F, Oskolkova O, Leitner A, Mildner M, Mlitz V, Lengauer B, Kadl A, Mrass P, Krönke G, Binder BR, Bochkov VN, Leitinger N, Tschachler E. Photooxidation generates biologically active phospholipids that induce heme oxygenase-1 in skin cells. J Biol Chem 2007; 282:16934-41. [PMID: 17449870 DOI: 10.1074/jbc.m702523200] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Heme oxygenase-1 (HO-1) is a key enzyme in the cellular response to tissue injury and oxidative stress. HO-1 enzymatic activity results in the formation of the cytoprotective metabolites CO and biliverdin. In the skin, HO-1 is strongly induced after long wave ultraviolet radiation (UVA-1). Here we show that UVA-1 irradiation generates oxidized phospholipids derived from 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphorylcholine (PAPC) that mediate the expression of HO-1 in skin cells. Using EO6 antibodies that recognize oxidized phospholipids, we show that UVA-1 irradiation of dermal fibroblasts generates oxidation-specific epitopes. Irradiation of arachidonate-containing phospholipids with UVA-1 led to formation of defined lipid oxidation products including epoxyisoprostane-phosphatidylcholine that induced HO-1 expression in dermal fibroblasts, in keratinocytes, and in a three-dimensional epidermal equivalent model. In addition, we demonstrate that the oxidation of PAPC by UVA-1 is a singlet oxygen-dependent mechanism. Together, we present a novel mechanism of UVA-1-induced HO-1 expression that is mediated by the generation of biologically active phospholipid oxidation products. Because UVA-1 irradiation is a mainstay treatment of several inflammatory skin diseases, structural identification of UVA-1-generated biomolecules with HO-1-inducing capacity should lead to the development of drugs that could substitute for irradiation.
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Affiliation(s)
- Florian Gruber
- Deparment of Dermatology, Medical University of Vienna, Vienna 1090, Austria
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Mansura A, Alkalay R, Slodownik D, Ingber A, Ruzicka T, Enk CD. Ultraviolet A-1 as a treatment for ulcerative lichen planus of the feet. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2006; 22:164-5. [PMID: 16719872 DOI: 10.1111/j.1600-0781.2006.00200.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ulcerative lichen planus of the feet is a rare variant of lichen planus characterized by the constellation of a chronic bullous and ulcerative eruption limited to the feet, atrophy of involved skin and nails, and cicatricial alopecia. Only split-thickness skin grafting has here to been documented to be effective. We here report a case with ulcerative lichen planus of the feet successfully treated with medium-dose ultraviolet A-1.
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Affiliation(s)
- Adva Mansura
- The Hadassah-Germany Skin Center, Department of Dermatology, Hadassah Medical Organization--The Hebrew University Medical School, Jerusalem, Israel
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