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Pocino K, Carnazzo V, Stefanile A, Basile V, Guerriero C, Marino M, Rigante D, Basile U. Tumor Necrosis Factor-Alpha: Ally and Enemy in Protean Cutaneous Sceneries. Int J Mol Sci 2024; 25:7762. [PMID: 39063004 PMCID: PMC11276697 DOI: 10.3390/ijms25147762] [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: 06/13/2024] [Revised: 07/12/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024] Open
Abstract
Skin is the forestage for a series of many-sided functions of tumor necrosis factor-alpha (TNF-α), a proinflammatory cytokine with staggering versatility and sizable implications for tissue homeostasis, immune responses, angiogenesis, apoptosis, local and systemic inflammation. An aberrant TNF-α-mediated crosstalk has been linked to the pathogenesis of acute and chronic skin inflammatory diseases, and indeed, TNF-α dysregulation can contribute to the development and progression of psoriasis, vitiligo, local damage following exposition to ultraviolet light radiations, cutaneous lupus erythematosus, and acne vulgaris. Therapies that target TNF-α are conspicuously used in the treatment of different skin disorders, aiming to modulate the in vivo immune functions triggered by many cutaneous cells, including keratinocytes, mast cells, or Langerhans cells, and reduce inflammation taking place within the skin. Herein, we focus on the key relationships between TNF-α and distinct skin non-neoplastic inflammatory or physiologic conditions, showing that a natural induction of TNF-α may have a protective significance but that TNF-α overproduction may be harmful or even lethal. Many questions remain unraveled in the therapeutic practice, and caution should be exercised due to eventual backlashes exerted by TNF-α in maintaining skin health or in provoking skin disease.
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Affiliation(s)
- Krizia Pocino
- Unità Operativa Complessa di Patologia Clinica, Ospedale San Pietro Fatebenefratelli, 00189 Rome, Italy; (K.P.); (A.S.)
| | - Valeria Carnazzo
- Department of Clinical Pathology, Santa Maria Goretti Hospital, 04100 Latina, Italy; (V.C.); (U.B.)
| | - Annunziata Stefanile
- Unità Operativa Complessa di Patologia Clinica, Ospedale San Pietro Fatebenefratelli, 00189 Rome, Italy; (K.P.); (A.S.)
| | - Valerio Basile
- Clinical Pathology Unit and Cancer Biobank, Department of Research and Advanced Technologies, Regina Elena National Cancer Institute IRCCS, 00144 Rome, Italy;
| | - Cristina Guerriero
- Department of Dermatology, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy;
| | - Mariapaola Marino
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy;
| | - Donato Rigante
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy;
- Department of Life Sciences and Public Health, Università Cattolica Sacro Cuore, 00168 Rome, Italy
| | - Umberto Basile
- Department of Clinical Pathology, Santa Maria Goretti Hospital, 04100 Latina, Italy; (V.C.); (U.B.)
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Hara Y, Shibata T. Characteristics of dermal vascularity in melasma and solar lentigo. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12953. [PMID: 38353352 DOI: 10.1111/phpp.12953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND /PURPOSE Melasma and solar lentigo (SL) are major benign hyperpigmented lesions, and both have been shown to involve the dermal vasculature. This review discusses current knowledge regarding the clinical characteristics of dermal vascularity in melasma and SL, as well as the results of relevant molecular biological investigations. METHODS PubMed and Google Scholar were searched in December 2023 to identify articles related to melasma, SL, and the dermal vasculature in these lesions. RESULTS Vascular morphologies in melasma and SL have been detected by histological and non-invasive methods, including modalities such as optical coherence tomography. Biological studies have indicated that factors secreted from vascular endothelial cells, such as stem cell factor and endothelin-1, can promote melanogenesis. With respect to phototherapy, blood vessel-targeting laser treatments are expected to provide long-term suppression of pigmentation, but this regimen is only effective when dilated capillaries are visible. CONCLUSION In both melasma and SL, clinical and experimental investigations are revealing the contributions of dermal vascularity to hyperpigmentation. More effective treatment may require identification of hyperpigmentation subtypes. In the future, knowledge of treatment (including phototherapy) is expected to accumulate through reliable and validated non-invasive measurements.
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Affiliation(s)
- Yusuke Hara
- MIRAI Technology Institute, Shiseido Co., Ltd., Yokohama, Japan
| | - Takako Shibata
- MIRAI Technology Institute, Shiseido Co., Ltd., Yokohama, Japan
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Quan QL, Yoon KN, Lee JS, Kim EJ, Lee DH. Impact of ultraviolet radiation on cardiovascular and metabolic disorders: The role of nitric oxide and vitamin D. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2023; 39:573-581. [PMID: 37731181 DOI: 10.1111/phpp.12914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND/PURPOSE Ultraviolet (UV) radiation has both harmful and beneficial effects on human skin and health. It causes skin damage, aging, and cancer; however, it is also a primary source of vitamin D. Additionally, UV radiation can impact energy metabolism and has protective effects on several cardiovascular and metabolic disorders in mice and humans. However, the mechanisms of UV protection against these diseases have not been clearly identified. METHODS This review summarizes the systemic effects of UV radiation on hypertension and several metabolic diseases such as obesity, diabetes, and nonalcoholic fatty liver disease (NAFLD) in mice, and we also consider the mechanisms of action of the related regulators nitric oxide (NO) and vitamin D. RESULTS UV exposure can lower blood pressure and prevent the development of cardiovascular diseases and metabolic disorders, such as metabolic syndrome, obesity, and type 2 diabetes, primarily through mechanisms that depend on UV-induced NO. UV radiation may also effectively delay the onset of type 1 diabetes through mechanisms that rely on UV-induced vitamin D. UV-induced NO and vitamin D play roles in preventing and slowing the progression of NAFLD. CONCLUSION UV exposure is a promising nonpharmacological intervention for cardiovascular and metabolic disorders. NO and vitamin D may play a crucial role in mediating these effects. However, further investigations are required to elucidate the exact mechanisms and determine the optimal dosage and exposure duration of UV radiation.
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Affiliation(s)
- Qing-Ling Quan
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Kyeong-No Yoon
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Ji Su Lee
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Eun Ju Kim
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
| | - Dong Hun Lee
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
- Institute of Human-Environment Interface Biology, Seoul National University, Seoul, Korea
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Skin-Aging Pigmentation: Who Is the Real Enemy? Cells 2022; 11:cells11162541. [PMID: 36010618 PMCID: PMC9406699 DOI: 10.3390/cells11162541] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 12/21/2022] Open
Abstract
Skin aging is induced and sustained by chronological aging and photoaging. Aging skin pigmentation such as mottled pigmentation (senile lentigo) and melasma are typical signs of photoaging. The skin, like other human organs, undergoes cellular senescence, and senescent cells in the skin increase with age. The crosstalk between melanocytes as pigmentary cells and other adjacent types of aged skin cells such as senescent fibroblasts play a role in skin-aging pigmentation. In this review, we provide an overview of cellular senescence during the skin-aging process. The discussion also includes cellular senescence related to skin-aging pigmentation and the therapeutic potential of regulating the senescence process.
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Kang HY, Lee JW, Papaccio F, Bellei B, Picardo M. Alterations of the pigmentation system in the aging process. Pigment Cell Melanoma Res 2021; 34:800-813. [PMID: 34048137 DOI: 10.1111/pcmr.12994] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 01/10/2023]
Abstract
Human skin aging is a natural phenomenon that results from continuous exposure to intrinsic (time, genetic factors, hormones) as well as extrinsic factors (UV exposure, pollution, tobacco). In areas that are frequently exposed to the sun, photoaging blends with the process of intrinsic aging, resulting in an increased senescent cells number and consequently accelerating the aging process. The severity of photodamage depends on constitutional factors, including skin phototype (skin color, tanning capacity), intensity, and duration of sunlight/UV exposure. Aging affects nearly every aspect of cutaneous biology, including pigmentation. Clinically, the phenotype of age pigmented skin has a mottled, uneven color, primarily due to age spots, with or without hypopigmentation. Uneven pigmentation might be attributed to the hyperactivation of melanocytes, altered distribution of pigment, and turnover. In addition to direct damage to pigment-producing cells, photodamage alters the physiological crosstalk between keratinocytes, fibroblasts, endothelial cells, and melanocytes responsible for natural pigmentation homeostasis. Interestingly, age-independent diffuse expression of senescence-associated markers in the dermal and epidermal compartment is also associated with vitiligo, suggesting that premature senescence plays an important role in the pathology.
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Affiliation(s)
- Hee Young Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Jin Wook Lee
- Department of Medical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea.,Department of Dermatology, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Federica Papaccio
- Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatological Institute, IRCCS, Rome, Italy
| | - Barbara Bellei
- Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatological Institute, IRCCS, Rome, Italy
| | - Mauro Picardo
- Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatological Institute, IRCCS, Rome, Italy
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Moattari CR, Granstein RD. Neuropeptides and neurohormones in immune, inflammatory and cellular responses to ultraviolet radiation. Acta Physiol (Oxf) 2021; 232:e13644. [PMID: 33724698 DOI: 10.1111/apha.13644] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022]
Abstract
Humans are exposed to varying amounts of ultraviolet radiation (UVR) through sunlight. UVR penetrates into human skin leading to release of neuropeptides, neurotransmitters and neuroendocrine hormones. These messengers released from local sensory nerves, keratinocytes, Langerhans cells (LCs), mast cells, melanocytes and endothelial cells (ECs) modulate local and systemic immune responses, mediate inflammation and promote differing cell biologic effects. In this review, we will focus on both animal and human studies that elucidate the roles of calcitonin gene-related peptide (CGRP), substance P (SP), nerve growth factor (NGF), nitric oxide and proopiomelanocortin (POMC) derivatives in mediating immune and inflammatory effects of exposure to UVR as well as other cell biologic effects of UVR exposure.
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Zhang C, Lu Y, Ai Y, Xu X, Zhu S, Zhang B, Tang M, Zhang L, He T. Glabridin Liposome Ameliorating UVB-Induced Erythema and Lethery Skin by Suppressing Inflammatory Cytokine Production. J Microbiol Biotechnol 2021; 31:630-636. [PMID: 33526759 PMCID: PMC9706034 DOI: 10.4014/jmb.2011.11006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 12/15/2022]
Abstract
Glabridin, a compound of the flavonoid, has shown outstanding skin-whitening and anti-aging properties, but its water insolubility limits its wide application. Therefore, glabridin liposome (GL) has been developed to improve its poor bioavailability, while there are few studies to evaluate its amelioration of UVB- induced photoaging. This study is performed to investigate the amelioration of GL against UVB- induced cutaneous photoaging. The prepared GL has a spheroidal morphology with an average diameter of 200 nm. The GL shows lower cytotoxicity than glabridin, but it has a more effective role in inhibition of melanin. Moreover, the application of GL can effectively relieve UV radiation induced erythema and leathery skin, associated with the down-regulated expression of inflammatory cytokines (TNF-α, IL-6 and IL-10). Taken together, these results demonstrate that GL has potentials as topical therapeutic agents against UVB radiation induced skin damage through inhibiting inflammation.
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Affiliation(s)
- Chijian Zhang
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
- Guangdong He Ji Biotech Co., Ltd., Guangzhou 510000, P.R. China
| | - Yongjie Lu
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
- Guangdong He Ji Biotech Co., Ltd., Guangzhou 510000, P.R. China
| | - Yong Ai
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
- Guangdong He Ji Biotech Co., Ltd., Guangzhou 510000, P.R. China
| | - Xian Xu
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
| | - Siyang Zhu
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
| | - Bing Zhang
- Guangdong He Ji Biotech Co., Ltd., Guangzhou 510000, P.R. China
| | - Minghui Tang
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
| | - Lanyue Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P.R. China
| | - Tinggang He
- Hua An Tang Biotech Group Co., Ltd., Guangzhou 510000, P.R. China
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8
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Abstract
The use of calendula for its lenitive properties’ dates to the XII century. This plant contains several bioactive compounds, including terpenoids, terpenes, carotenoids, flavonoids and polyunsaturated fatty acids. Calendula flower extract is used in soothing cosmetics, such as after-sun, sensitive skin and eye contour products. The anti-inflammatory properties of this ingredient were demonstrated in an animal model, but the mechanism of action is poorly understood. Therefore, our work explored the effect of a calendula flower extract on NO production, a pro-inflammatory radical produced by nitric oxide synthase (iNOS) and highly released by innate immune cells in inflammatory-related pathologies. NO production was evoked by the Toll-like receptor 4 agonist lipopolysaccharide (LPS) in macrophages, using concentrations that did not compromise cells viability. This ingredient exhibited a dose-dependent NO inhibition, reaching 50% at 147 μL/mL without cytotoxicity. Together with previous literature, these results provide experimental evidence on the anti-inflammatory properties of calendula flower extract, as well as its usefulness in cosmetics with soothing properties and adjunctive skin care in the treatment of the diseases associated with dysregulation of the NO signaling cascade.
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10
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Hussain AB, Samuel R, Hegade VS, Jones DE, Reynolds NJ. Pruritus secondary to primary biliary cholangitis: a review of the pathophysiology and management with phototherapy. Br J Dermatol 2019; 181:1138-1145. [PMID: 30920648 DOI: 10.1111/bjd.17933] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Primary biliary cholangitis (PBC) is an autoimmune hepatobiliary disorder characterized by destruction of liver bile ducts leading to intrahepatic cholestasis. It causes intractable pruritus for which ultraviolet (UV)B phototherapy is an experimental treatment when alternative therapies fail. The pathophysiology of cholestatic itch and the mechanism of action of narrowband UVB in this condition remains poorly understood. OBJECTIVES To summarize the current literature and propose testable hypotheses for the mechanism of action of phototherapy in attenuating itch. METHODS A focused PubMed search for articles relating to the pathogenesis of itch in cholestatic disease was performed. A total of 3855 articles were screened and 50 were found suitable for literature review. Evidence from this literature review was combined with author expertise in the area. RESULTS Formulated hypotheses focus on the role of bile salts, autotaxin and specific receptors including G-protein-coupled bile acid receptor, Gpbar1 (also known as TGR5) and the nuclear transcription factor farnesoid X receptor. CONCLUSIONS Several testable mechanisms through which phototherapy may exert its effects are discussed in this review. The next steps are to carry out an objective assessment of the efficacy of phototherapy in cholestatic pruritus, gain further knowledge on the underlying pathways, and subsequently trial its use against current licensed therapies. Such studies could lead to increased mechanistic understanding, identification of novel therapeutic targets and the potential to refine phototherapy protocols, leading to improved control of itch and quality of life in patients with PBC. What's already known about this topic? Primary biliary cholangitis (PBC) is frequently associated with intractable pruritus for which current treatment options are often unsuccessful. Phototherapy is used as an experimental treatment for PBC-associated pruritus when alternative better-studied treatments fail. What does this study add? This study reviews the current literature on the pathophysiology and management of cholestatic pruritus, an area which remains poorly understood. We propose testable hypotheses of the mechanisms behind the attenuation of cholestatic pruritus with phototherapy.
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Affiliation(s)
- A B Hussain
- Newcastle Dermatology, Royal Victoria Infirmary, Newcastle upon Tyne, NHS Foundation Trust, Newcastle upon Tyne, U.K
| | - R Samuel
- Newcastle Dermatology, Royal Victoria Infirmary, Newcastle upon Tyne, NHS Foundation Trust, Newcastle upon Tyne, U.K
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, U.K
| | - V S Hegade
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, U.K
- Liver Unit, Freeman Hospital, Newcastle upon Tyne, NHS Foundation Trust, Newcastle upon Tyne, U.K
| | - D E Jones
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, U.K
- Liver Unit, Freeman Hospital, Newcastle upon Tyne, NHS Foundation Trust, Newcastle upon Tyne, U.K
| | - N J Reynolds
- Newcastle Dermatology, Royal Victoria Infirmary, Newcastle upon Tyne, NHS Foundation Trust, Newcastle upon Tyne, U.K
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, U.K
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Chen F, Tang Y, Sun Y, Veeraraghavan VP, Mohan SK, Cui C. 6-shogaol, a active constiuents of ginger prevents UVB radiation mediated inflammation and oxidative stress through modulating NrF2 signaling in human epidermal keratinocytes (HaCaT cells). JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2019; 197:111518. [PMID: 31202076 DOI: 10.1016/j.jphotobiol.2019.111518] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/20/2019] [Accepted: 05/30/2019] [Indexed: 11/21/2022]
Abstract
Disclosure of ultraviolet (UV) radiation is the key feature from environment to cause redness of the skin, inflammation, photoaging and skin cancer. 6-Shogaol, a spicy compound secluded from ginger, which shows anti-inflammatory effects. Present study was demonstrated the role of 6-Shogaol on UVB induced oxidative stress and photoaging signaling in human epidermal keratinocytes (HaCaT cells). In this study, UVB-irratiation (180 mJ/cm2) significantly elevated the intracellular ROS levels, depletion of antioxidants resulted in apoptotic HaCaT cells. MAPKs signaling are concerned in oxidative stress; these signaling events are measured as differentiation. We found that 6-shogaol prevents over expression of MAPKs (ERK1, JNK1 & p38), in disclosure of UVB in HaCaT cells. Moreover, 6-shogaol infringed Bax and Bcl-2 in which 20 μg 6-shogaol influenced apoptosis in HaCaT cells by investigating augmented appearance of Bax and condensed appearance of Bcl-2 in contrast to control HaCaT cells. These results suggest that 6-shogaol could be a successful healing agent provides fortification against UVB-induced provocative and oxidative skin reimbursement.
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Affiliation(s)
- Feng Chen
- Dermatology Department, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Ying Tang
- Department of Respiratory Medicine, the First Hospital of Jilin University, Changchun 130021, China
| | - Yujia Sun
- Department of Operating Room, the Second Hospital of Jilin University, Changchun 130041, China
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences,Saveetha University, Chennai 600 077, India
| | - Surapaneni Krishna Mohan
- Department of Medical Biochemistry, College of Applied Medical Sciences - Jubail (CAMSJ), Imam Abdulrahman Bin Faisal University, P.O.Box 4030, Al Ansar Rd, Deffi, Jubail Industrial City, Al Jubail 35816, Saudi Arabia
| | - Chuanxin Cui
- Dermatology Department, China-Japan Union Hospital of Jilin University, Changchun 130033, China.
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Oh JH, Karadeniz F, Lee JI, Seo Y, Kong CS. Protective effect of 3,5‑dicaffeoyl‑epi‑quinic acid against UVB‑induced photoaging in human HaCaT keratinocytes. Mol Med Rep 2019; 20:763-770. [PMID: 31115540 DOI: 10.3892/mmr.2019.10258] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 03/28/2019] [Indexed: 11/05/2022] Open
Abstract
Derivatives of caffeoylquinic acid (CQA) have been studied and reported as potent bioactive molecules possessing various health benefits including antioxidant and anti‑inflammatory activities. In the present study, the protective effect of 3,5‑dicaffeoyl‑epi‑quinic acid (DCEQA) isolated from Atriplex gmelinii on UVB‑induced damages was investigated in human HaCaT keratinocytes. The effect of DCEQA against UVB‑induced oxidative stress‑mediated damages was determined measuring its ability to alleviate UVB‑induced elevation of oxidative stress, proinflammatory response and antioxidant enzyme suppression through nuclear factor‑like 2 (Nrf2). Treatment with DCEQA hindered the generation of intracellular reactive oxygen species. Increased levels of proinflammatory cytokines TNF‑α, COX‑2, IL‑6 and IL‑1β following UVB exposure were suppressed by the introduction of DCEQA. Additionally, DCEQA upregulated the mRNA and protein expression of antioxidant enzymes superoxide dismutase‑1 and heme oxygenase‑1 which were inhibited under UVB irradiation. Antioxidant enzyme regulation transcription factor Nrf2 was also upregulated in the presence of DCEQA. These results suggest that DCEQA prevents photoaging via protection of keratinocytes from UVB irradiation by ameliorating the oxidative stress and pro‑inflammatory response.
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Affiliation(s)
- Jung Hwan Oh
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Fatih Karadeniz
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Jung Im Lee
- Marine Biotechnology Center for Pharmaceuticals and Foods, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Marine Bioscience, College of Ocean Science and Technology, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Chang-Suk Kong
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
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13
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Cadet J, Douki T. Formation of UV-induced DNA damage contributing to skin cancer development. Photochem Photobiol Sci 2018; 17:1816-1841. [PMID: 29405222 DOI: 10.1039/c7pp00395a] [Citation(s) in RCA: 220] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
UV-induced DNA damage plays a key role in the initiation phase of skin cancer. When left unrepaired or when damaged cells are not eliminated by apoptosis, DNA lesions express their mutagneic properties, leading to the activation of proto-oncogene or the inactivation of tumor suppression genes. The chemical nature and the amount of DNA damage strongly depend on the wavelength of the incident photons. The most energetic part of the solar spectrum at the Earth's surface (UVB, 280-320 nm) leads to the formation of cyclobutane pyrimidine dimers (CPDs) and pyrimidine (6-4) pyrimidone photoproducts (64PPs). Less energetic but 20-times more intense UVA (320-400 nm) also induces the formation of CPDs together with a wide variety of oxidatively generated lesions such as single strand breaks and oxidized bases. Among those, 8-oxo-7,8-dihydroguanine (8-oxoGua) is the most frequent since it can be produced by several mechanisms. Data available on the respective yield of DNA photoproducts in cells and skin show that exposure to sunlight mostly induces pyrimidine dimers, which explains the mutational signature found in skin tumors, with lower amounts of 8-oxoGua and strand breaks. The present review aims at describing the basic photochemistry of DNA and discussing the quantitative formation of the different UV-induced DNA lesions reported in the literature. Additional information on mutagenesis, repair and photoprotection is briefly provided.
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Affiliation(s)
- Jean Cadet
- Département de Médecine Nucléaire et Radiobiologie, Faculté de Médecine, 3001 12e Avenue Nord, Université de Sherbrooke, Sherbrooke, Québec JIH 5N4, Canada.
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14
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Gao LX, Bian C, Wu Y, Nisar MF, Chen S, Li CM, Yu L, Ji P, Huang E, Zhong JL. Label-free electrochemical sensor to investigate the effect of tocopherol on generation of superoxide ions following UV irradiation. J Biol Eng 2018; 12:17. [PMID: 30220911 PMCID: PMC6134779 DOI: 10.1186/s13036-018-0099-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 04/23/2018] [Indexed: 02/05/2023] Open
Abstract
Background Generation of reactive oxygen species (ROS), triggered by ultraviolet radiation (UVR), is associated with carcinogenesis of the skin. UV irradiation induced superoxide anion (O2•−) is the key ROS involved in the cellular damage. The cytoprotective efficacy of an unknown anti-oxidant compound can be evaluated by analyzing the production of O2•− from treated cells. Methods In this study, a glass carbon electrode functionalized with nanotube@DNA-Mn3(PO4)2 composite was applied to quantitative determination of generation of highly unstable O2•− from the melanoma A375 cell line following UVR(UV, UVA and UVB). In addition, the cytoprotective efficacy of anti-oxidant α-tocopherol was evaluated by quantifying the production of O2•−. Results The results showed that, UVR triggers generation of O2•− in melanoma A375 cells, and α-tocopherol is effective in diminishing the production of O2•− following UV irradiation. By comparing the conventional cell-survival assays results, we found that our simple and quick electrochemical sensing method can quantify O2•− generation through the biological activity of an anti-oxidant compound (α-tocopherol). Conclusion Our label-free electrochemical quantification method for ROS (O2•− major) in cells facing UVR stress demonstrates its potential application for high-throughput screening of anti-oxidation compounds.
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Affiliation(s)
- Li Xia Gao
- 1College of Bioengineering & School of Life Sciences, Chongqing University, Chongqing, 400044 China.,2Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing, 400715 China
| | - Chunxiang Bian
- 1College of Bioengineering & School of Life Sciences, Chongqing University, Chongqing, 400044 China
| | - Yan Wu
- 1College of Bioengineering & School of Life Sciences, Chongqing University, Chongqing, 400044 China
| | - Muhammad Farrukh Nisar
- 1College of Bioengineering & School of Life Sciences, Chongqing University, Chongqing, 400044 China.,Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore, 54000 Pakistan
| | - Shida Chen
- 1College of Bioengineering & School of Life Sciences, Chongqing University, Chongqing, 400044 China
| | - Chang Ming Li
- 2Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing, 400715 China
| | - Ling Yu
- 2Institute for Clean Energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing, 400715 China
| | - Ping Ji
- Chongqing Municipal Key laboratory of oral diseases and biomedical sciences, Biomedical Engineering of Higher Education, Chongqing, 401147 China
| | - Enyi Huang
- Chongqing Municipal Key laboratory of oral diseases and biomedical sciences, Biomedical Engineering of Higher Education, Chongqing, 401147 China
| | - Julia Li Zhong
- 1College of Bioengineering & School of Life Sciences, Chongqing University, Chongqing, 400044 China.,Chongqing Municipal Key laboratory of oral diseases and biomedical sciences, Biomedical Engineering of Higher Education, Chongqing, 401147 China
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15
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Kim M, Shibata T, Kwon S, Park TJ, Kang HY. Ultraviolet-irradiated endothelial cells secrete stem cell factor and induce epidermal pigmentation. Sci Rep 2018. [PMID: 29523807 PMCID: PMC5844989 DOI: 10.1038/s41598-018-22608-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ultraviolet (UV)-associated hyperpigmented skins are characterized with increased vasculature underlying pigmentation, suggestive of the possible biological role of endothelial cells in the regulation of skin pigmentation during UV irradiation. In this study, we showed that UV-irradiated endothelial cells significantly increased the pigmentation of melanocytes through epithelial-mesenchymal crosstalk. The stimulatory effect of endothelial cells was further demonstrated using ex vivo human skin. RNA sequence analysis and enzyme-linked immunosorbent assay showed that endothelial cells secrete more stem cell factor (SCF) upon UV irradiation than non-irradiated cells. The increased pigmentation elicited by endothelial cells was abrogated following inhibition of SCF/c-KIT signaling. Together these results suggest that endothelial cells are activated upon UV exposure to release melanogenic factors such as SCF, which contributes to the development of skin hyperpigmentation during chronic sun exposure.
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Affiliation(s)
- Misun Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | | | - Soohyun Kwon
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Tae Jun Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea. .,Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Suwon, Korea. .,Department of Biomedical Science, The Graduate School, Ajou University, Suwon, Korea.
| | - Hee Young Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea. .,Department of Biomedical Science, The Graduate School, Ajou University, Suwon, Korea.
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16
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Kim KY. Anti-inflammatory and ECM gene expression modulations of β-eudesmol via NF-κB signaling pathway in normal human dermal fibroblasts. BIOMEDICAL DERMATOLOGY 2018. [DOI: 10.1186/s41702-017-0014-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Sharma P, Montes de Oca MK, Alkeswani AR, McClees SF, Das T, Elmets CA, Afaq F. Tea polyphenols for the prevention of UVB-induced skin cancer. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2017; 34:50-59. [PMID: 29044724 DOI: 10.1111/phpp.12356] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/30/2017] [Indexed: 12/16/2022]
Abstract
Skin cancer is the most common type of cancer with increasing incidence rate and public health burden. Solar ultraviolet (UV) radiation causes an array of damaging cellular and molecular events that eventually lead to the development of skin cancer. Despite increased awareness about sun protection, the exposure rate remains high with less than 15% of men and 30% of women using sunscreen on a regular basis. Therefore, there is an imperative need for the development of novel preventive approaches. Skin cancer chemoprevention using phytochemicals either as dietary supplements or by topical applications has gained considerable attention due to their low toxicity, availability, and anticarcinogenic properties. Tea, the second most commonly consumed beverage in the world, is a rich source of promising phytochemicals known as polyphenols. In this review, we discuss the findings of various in vitro, in vivo and human studies signifying the chemopreventive effects of tea polyphenols against UVB-induced skin cancer. This is accomplished by exploring the role of tea polyphenols in DNA repair, inflammation, oxidative stress, signaling pathways, and epigenetics. Finally, this review discusses a variety of innovative delivery methods that enhance the photochemopreventive effects of tea polyphenols against skin cancer.
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Affiliation(s)
- Pooja Sharma
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mary K Montes de Oca
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Amena R Alkeswani
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Sarah F McClees
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Tanushree Das
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Craig A Elmets
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA.,Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Farrukh Afaq
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA.,Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
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18
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Zhu X, Zeng X, Zhang X, Cao W, Wang Y, Chen H, Wang T, Tsai HI, Zhang R, Chang D, He S, Mei L, Shi X. The effects of quercetin-loaded PLGA-TPGS nanoparticles on ultraviolet B-induced skin damages in vivo. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:623-632. [DOI: 10.1016/j.nano.2015.10.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/24/2015] [Accepted: 10/30/2015] [Indexed: 12/19/2022]
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19
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Ambothi K, Prasad NR, Balupillai A. Ferulic acid inhibits UVB-radiation induced photocarcinogenesis through modulating inflammatory and apoptotic signaling in Swiss albino mice. Food Chem Toxicol 2015; 82:72-8. [PMID: 25983265 DOI: 10.1016/j.fct.2015.04.031] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 04/27/2015] [Accepted: 04/29/2015] [Indexed: 01/04/2023]
Abstract
The aim of this study was to evaluate the photochemopreventive effects of ferulic acid (FA) against chronic ultraviolet-B (290-320 nm) induced oxidative stress, inflammation and angiogenesis in the skin of Swiss albino mice. Chronic UVB exposure (180 mJ/cm(2) for 30 weeks; thrice in a week) induced tumor formation in the mice skin that showed increased expression of carcinogenic and inflammatory markers when compared with the control animals. The intraperitoneal (FAIP) and topical (FAT) administration of FA significantly reduced the incidence of UVB-induced tumor volume and tumor weight in the mice skin. Histopathological studies revealed that both FAIP and FAT administration prevented the UVB-induced hyperplasia, squamous cell carcinoma (SCC) and dysplastic feature in the mice skin. Further, it has been observed that FA treatment reverted chronic UVB-induced oxidative damage (thiobarbituric acid reactive substances, superoxide dismutase, catalase, glutathione peroxidase) accompanied with modulation of vascular endothelial growth factor (VEGF), inducible nitric oxide synthase (iNOS), TNF-α and IL-6 in the mice skin tumor. FA treatment also modulates mutated p53, Bcl-2 and Bax expressions in the UVB-induced mice skin tumor. Thus, the results of the present study indicate ferulic acid has potential against UVB-induced carcinogenesis in the Swiss albino mice.
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Affiliation(s)
- Kanagalakshmi Ambothi
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar 608 002, India
| | - N Rajendra Prasad
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar 608 002, India.
| | - Agilan Balupillai
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar 608 002, India
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20
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Cadet J, Douki T, Ravanat JL. Oxidatively generated damage to cellular DNA by UVB and UVA radiation. Photochem Photobiol 2014; 91:140-55. [PMID: 25327445 DOI: 10.1111/php.12368] [Citation(s) in RCA: 208] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 10/09/2014] [Indexed: 12/13/2022]
Abstract
This review article focuses on a critical survey of the main available information on the UVB and UVA oxidative reactions to cellular DNA as the result of direct interactions of UV photons, photosensitized pathways and biochemical responses including inflammation and bystander effects. UVA radiation appears to be much more efficient than UVB in inducing oxidatively generated damage to the bases and 2-deoxyribose moieties of DNA in isolated cells and skin. The UVA-induced generation of 8-oxo-7,8-dihydroguanine is mostly rationalized in terms of selective guanine oxidation by singlet oxygen generated through type II photosensitization mechanism. In addition, hydroxyl radical whose formation may be accounted for by metal-catalyzed Haber-Weiss reactions subsequent to the initial generation of superoxide anion radical contributes in a minor way to the DNA degradation. This leads to the formation of both oxidized purine and pyrimidine bases together with DNA single-strand breaks at the exclusion, however, of direct double-strand breaks. No evidence has been provided so far for the implication of delayed oxidative degradation pathways of cellular DNA. In that respect putative characteristic UVA-induced DNA damage could include single and more complex lesions arising from one-electron oxidation of the guanine base together with aldehyde adducts to amino-substituted nucleobases.
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Affiliation(s)
- Jean Cadet
- University Grenoble Alpes, INAC, Grenoble, France; CEA, INAC, Grenoble, France; Département de Médecine Nucléaire et Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC, Canada
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21
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El-Haj N, Goldstein N. Sun protection in a pill: the photoprotective properties ofPolypodium leucotomosextract. Int J Dermatol 2014; 54:362-6. [DOI: 10.1111/ijd.12611] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nura El-Haj
- School of Medicine; Trinity College Dublin; Dublin Ireland
| | - Norman Goldstein
- Department of Dermatology; Mount Sinai Medical Center; New York NY USA
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22
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Lee C, Park GH, Ahn EM, Kim BA, Park CI, Jang JH. Protective effect of Codium fragile against UVB-induced pro-inflammatory and oxidative damages in HaCaT cells and BALB/c mice. Fitoterapia 2013; 86:54-63. [DOI: 10.1016/j.fitote.2013.01.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2012] [Revised: 01/15/2013] [Accepted: 01/23/2013] [Indexed: 01/19/2023]
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23
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Lu W, Wu S. Mechanism for dynamic regulation of iNOS expression after UVB-irradiation. Mol Carcinog 2012; 52:627-33. [DOI: 10.1002/mc.21898] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/06/2012] [Accepted: 02/14/2012] [Indexed: 11/11/2022]
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24
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Park JH, Kim WS, Kim JY, Park MH, Nam JH, Yun CW, Kwon YG, Jo I. Chk1 and Hsp90 cooperatively regulate phosphorylation of endothelial nitric oxide synthase at serine 1179. Free Radic Biol Med 2011; 51:2217-26. [PMID: 22001744 DOI: 10.1016/j.freeradbiomed.2011.09.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 09/15/2011] [Accepted: 09/15/2011] [Indexed: 11/27/2022]
Abstract
The effects of DNA damage on NO production have not been completely elucidated. Using ultraviolet (UV) irradiation as a DNA-damaging agent, we studied its effect on NO production in bovine aortic endothelial cells (BAEC). UV irradiation acutely increased NO production, the phosphorylation of endothelial NO synthase (eNOS) at serine 1179, and eNOS activity. No alterations in eNOS expression nor phosphorylation at eNOS Thr(497) or eNOS Ser(116) were found. SB218078, a checkpoint kinase 1 (Chk1) inhibitor, inhibited UV-irradiation-stimulated eNOS-Ser(1179) phosphorylation and NO production. Similarly, ectopic expression of small interference RNA for Chk1 or a dominant-negative Chk1 repressed the UV-irradiation stimulatory effect, whereas wild-type Chk1 increased basal eNOS-Ser(1179) phosphorylation. Purified Chk1 directly phosphorylated eNOS Ser(1179) in vitro. Confocal microscopy and coimmunoprecipitation studies revealed a colocalization of eNOS and Chk1. In basal BAEC, heat shock protein 90 (Hsp90) predominantly interacted with Chk1. This interaction, which decreased significantly in response to UV irradiation, was accompanied by increased interaction of Hsp90 with eNOS. The Hsp90 inhibitor geldanamycin attenuated UV-irradiation-stimulated eNOS-Ser(1179) phosphorylation by dissociating Hsp90 from eNOS. UV irradiation and geldanamycin did not alter the interaction between eNOS and Chk1. Overall, this is the first study demonstrating that Chk1 directly phosphorylates eNOS Ser(1179) in response to UV irradiation, which is dependent on Hsp90 interaction.
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Affiliation(s)
- Jung-Hyun Park
- Department of Molecular Medicine and Ewha Medical Research Institute, Ewha Womans University Medical School, Seoul 158-710, Korea
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25
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Non-enzymatic NO production in human skin: Effect of UVA on cutaneous NO stores. Nitric Oxide 2010; 22:120-35. [DOI: 10.1016/j.niox.2009.10.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 10/21/2009] [Accepted: 10/22/2009] [Indexed: 12/27/2022]
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26
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Bashir MM, Sharma MR, Werth VP. TNF-α production in the skin. Arch Dermatol Res 2008; 301:87-91. [DOI: 10.1007/s00403-008-0893-7] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2008] [Accepted: 08/22/2008] [Indexed: 10/21/2022]
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27
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Jańczyk A, Garcia-Lopez MA, Fernandez-Peñas P, Alonso-Lebrero JL, Benedicto I, López-Cabrera M, Gonzalez S. A Polypodium leucotomos extract inhibits solar-simulated radiation-induced TNF-alpha and iNOS expression, transcriptional activation and apoptosis. Exp Dermatol 2007; 16:823-9. [PMID: 17845214 DOI: 10.1111/j.1600-0625.2007.00603.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this report, we have examined the molecular basis of the photoprotective effect of a hydrophilic extract of the fern Polypodium leucotomos (PL) in vitro, using a solar simulator as the source of UV radiation (SSR). We found that pretreatment of human keratinocytes with PL inhibited SSR-mediated increase of tumor necrosis factor (TNF)-alpha and also abrogated nitric oxide (NO) production. Consistent with this, PL blocked the induction of inducible nitric oxide synthase (iNOS) elicited by SSR. In addition, PL inhibited the SSR-mediated transcriptional activation of NF-kappaB and AP1. Finally, we demonstrated that pretreatment with PL exerted a cytoprotective effect against SSR-induced damage, resulting in increased cell survival. Together, these data postulate a multifactor mechanism of protection not exclusively reliant on the antioxidant capability of PL, and strengthen the basic knowledge on the photoprotective effect of this botanical agent.
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Affiliation(s)
- Agnieska Jańczyk
- Department of Molecular Biology, Hospital de la Princesa, Madrid, Spain
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28
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Natarajan M, Gibbons CF, Mohan S, Moore S, Kadhim MA. Oxidative stress signalling: a potential mediator of tumour necrosis factor alpha-induced genomic instability in primary vascular endothelial cells. Br J Radiol 2007; 80 Spec No 1:S13-22. [PMID: 17704321 DOI: 10.1259/bjr/15316848] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Studying the potential role of tumour necrosis factor (TNF)alpha in the initiation of genomic instability is necessary to understand whether TNFalpha can serve as a signalling mediator of radiation-induced genomic instability in non-irradiated bystander cells. In this study, we examined whether TNFalpha could initiate processes through oxidative stress signalling that lead to DNA damage and genomic instability in primary vascular endothelium. In these cells, low linear energy transfer (LET) radiation (0.1-2 Gy) induced the secretion of TNFalpha into the culture medium. When added ectopically, TNFalpha at concentrations ranging from 0.1 ng ml(-1) to 10 ng ml(-1) increased (twofold to threefold) intracellular oxidative stress. Next, to examine whether TNFalpha induces genetic damage, cells were treated with TNFalpha for 5 h and analysed immediately using the single cell gel electrophoresis assay or after 3 days, 12 days and 20 days using solid stain chromosomal analysis. Cells exposed to 0.1 Gy, 1 Gy or 2 Gy or treated with 100 microM H2O2 were used as positive controls. The results showed that TNFalpha as low as 0.1 ng ml(-1) could initiate increased DNA damage compared with untreated controls. When examined in the progeny cells after several generations, the chromosomal instability appeared to be carried over even after day 12 and day 20. The increased genetic damage is inhibited in cells that are pre-incubated with the antioxidant enzyme catalase, the antioxidant N-acetyl-L-cysteine or the metal chelator pyrrolidine dithiocarbamate. These results clearly indicate that TNFalpha at concentrations at which no cytotoxicity is observed could induce genetic damage through free radical generation, which could, in turn, lead to the delayed events associated with genomic instability.
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Affiliation(s)
- M Natarajan
- Department of Radiation Oncology, University of Texas Health Science Center, San Antonio, TX 78229, USA.
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29
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Jüttler E, Bonmann E, Spranger M, Kolb-Bachofen V, Suschek CV. A novel role of interleukin-1-converting enzyme in cytokine-mediated inducible nitric oxide synthase gene expression: Implications for neuroinflammatory diseases. Mol Cell Neurosci 2007; 34:612-20. [PMID: 17292624 DOI: 10.1016/j.mcn.2007.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2006] [Revised: 01/02/2007] [Accepted: 01/08/2007] [Indexed: 10/23/2022] Open
Abstract
Inducible nitric oxide synthase (iNOS)-derived NO plays an important role in several neurological disorders. Understanding of mechanisms involved in the regulation of iNOS induction is of particular interest. Here, we investigated mechanisms of iNOS induction in rat astrocytes (AC) and in brain endothelial cells (BEC). We find that activation of AC or BEC with pro-inflammatory cytokines reveals a different cell-specific activation pattern for iNOS expression. Despite these differences, in both cell types iNOS expression and activity exclusively depends on the endogenous availability of bioactive IL-1beta as inhibition of ICE activity significantly decreases iNOS promoter activity, iNOS expression and enzyme activity. In summary, we here provide evidence that ICE represents a target for modulating iNOS expression and high-output NO formation in AC and BEC, to our knowledge the first report of a role of ICE in iNOS expression and the advantage of ICE inhibition in attenuating NO mediated inflammation and pathology.
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Affiliation(s)
- Eric Jüttler
- Department of Neurology, Ruprechts-Karls-University, Im Neuenheimer Feld 400, D-69120 Heidelberg, Germany
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30
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Xiao Z, Su Y, Yang S, Yin L, Wang W, Yi Y, Fenton BM, Zhang L, Okunieff P. Protective effect of esculentoside A on radiation-induced dermatitis and fibrosis. Int J Radiat Oncol Biol Phys 2006; 65:882-9. [PMID: 16751070 DOI: 10.1016/j.ijrobp.2006.01.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2005] [Revised: 01/19/2006] [Accepted: 01/20/2006] [Indexed: 11/26/2022]
Abstract
PURPOSE To investigate the effect of esculentoside A (EsA) on radiation-induced cutaneous and fibrovascular toxicity and its possible molecular mechanisms, both in vivo and in vitro. METHODS AND MATERIALS Mice received drug intervention 18 hours before 30 Gy to the right hind leg. Alterations in several cytokines expressed in skin tissue 2 days after irradiation were determined by ELISA. Early skin toxicity was evaluated 3 to 4 weeks after irradiation by skin scoring, and both tissue contraction and expression of TGF-beta1 were determined for soft-tissue fibrosis 3 months after irradiation. In vitro, the effect of EsA on radiation-induced nitric oxide (NO) and cytokine production in different cell types was measured by application of 2, 4, and 8 Gy. RESULTS In vivo, EsA reduced levels of IL-1alpha, MCP-1, VEGF, and TGF-beta1 in cutaneous tissue and reduced soft-tissue toxicity. In vitro, EsA inhibited the IL-1alpha ordinarily produced after 4 Gy in A431 cells. In Raw264.7 cells, EsA reduced levels of IL-1alpha, IL-1beta, and NO production costimulated by radiation and lipopolysaccharide (LPS). In L-929 cells, EsA inhibited VEGF, TNF, and MCP-1 production at 2, 4, and 8 Gy. CONCLUSIONS Esculentoside A protects soft tissues against radiation toxicity through inhibiting the production of several proinflammatory cytokines and inflammatory mediators in epithelial cells, macrophages, fibroblasts, and skin tissue.
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Affiliation(s)
- Zhenyu Xiao
- Department of Radiation Oncology, James P. Wilmot Cancer Center at the University of Rochester Medical Center, Rochester, NY, USA
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31
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Yoshida E, Watanabe T, Takata J, Yamazaki A, Karube Y, Kobayashi S. Topical application of a novel, hydrophilic gamma-tocopherol derivative reduces photo-inflammation in mice skin. J Invest Dermatol 2006; 126:1633-40. [PMID: 16543897 DOI: 10.1038/sj.jid.5700236] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We previously demonstrated that a novel hydrophilic gamma-tocopherol (gamma-Toc) derivative, gamma-tocopherol-N,N-dimethylglycinate hydrochloride (gamma-TDMG) converts to gamma-Toc in the mouse skin and has a higher bioavailability than gamma-Toc itself. In the present study, we determined whether gamma-TDMG could reduce photo-inflammation in mouse skin, and compared its effectiveness to that of alpha-Toc acetate (alpha-TA). Topical pre- or post-application of 5% gamma-TDMG significantly reduced the formation of edema and tempered the increase in cyclooxygenase-2 (COX-2)-catalyzed synthesis of prostaglandin E2 (PGE2) that were induced by a single dose of UV irradiation of 2 kJ/m2 (290-380 nm, maximum 312 nm). The pre-treatment of mouse skin with 10% alpha-TA had the same anti-inflammatory effect as did gamma-TDMG. In spite of same having the ability to reduce PGE2 levels, the effect of gamma-TDMG pre-treatment on the inhibition of COX-2 mRNA/protein expression was less than that seen with 10% alpha-TA. In contrast, the increase in COX-2 activity seen after UV exposure was reduced more by gamma-TDMG than by alpha-TA, suggesting that the reduction in PGE2 levels might have been due to the direct inhibition of COX-2 activity by gamma-TDMG-derived gamma-Toc. Both Toc derivatives strongly suppressed inducible nitric oxide synthase (iNOS) mRNA expression and nitric oxide (NO) production, both of which play important roles in UV-induced inflammation. Both derivatives also significantly reduced lipid peroxidation in response to UV exposure, though gamma-TDMG's ability in this regard was less than that seen with alpha-TA, which correlated with their abilities to suppress COX-2 expression. Thus, the gamma-TDMG-derived gamma-Toc acts as an antioxidant, suppresses iNOS expression and directly inhibits COX-2 activity, all of which likely play a role in mediating its suppressive effects on photo-inflammation. Our data further suggest that the topical application of gamma-TDMG, a novel hydrophilic gamma-Toc derivative, may be efficacious in preventing and reducing UV-induced inflammation in humans.
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Affiliation(s)
- Emiko Yoshida
- Department of Molecular Physiology, Kyoritsu University of Pharmacy, Tokyo, Japan
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32
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Chi C, Ozawa T, Anzai K. In Vivo Nitric Oxide Production and iNOS Expression in X-Ray Irradiated Mouse Skin. Biol Pharm Bull 2006; 29:348-53. [PMID: 16462044 DOI: 10.1248/bpb.29.348] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Inducible nitric oxide synthase (iNOS) and NO have been suggested to be involved in acute radiation response in tissues such as the liver, intestine, colon, and brain. However, direct measurement of NO and iNOS in ionizing radiation-induced skin inflammatory reactions is not reported yet. We show here for the first time, by in vivo experiments, that X-ray irradiated mouse skin generates NO with concomitant expression of iNOS at both the mRNA and protein levels. When irradiated at 50 Gy, iNOS mRNA appeared at day 8 post-irradiation, whereas iNOS protein could be detected only at day 14. No iNOS protein was detectable however for the mice receiving 5 or 15 Gy irradiation, even at day 14. Skin inflammatory reactions were observed at day 8 post-irradiation as an increase in skin thickness, which increased further by day 14. Histological observations showed acute inflammatory responses. The parallel relationship between iNOS induction and the onset of skin inflammatory reactions suggests the involvement of iNOS and NO in the skin damage. Immunohistochemical staining showed the localization of iNOS at skin erosion areas, exudate and infiltrating cells. Taken together, these findings suggest that iNOS induction and NO production in X-irradiated skin are relatively early events in skin inflammatory reactions and are probably secondary rather than primary reactions of irradiation.
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Affiliation(s)
- Cuiping Chi
- Redox Regulation Research Group, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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