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Nasb M, Li F, Dayoub L, Wu T, Wei M, Chen N. Bridging the gap: Integrating exercise mimicry into chronic disease management through suppressing chronic inflammation. J Adv Res 2025; 70:307-322. [PMID: 38704088 PMCID: PMC11976426 DOI: 10.1016/j.jare.2024.04.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/25/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Chronic inflammation is a common hallmark of many chronic diseases. Although exercise holds paramount importance in preventing and managing chronic diseases, adherence to exercise programs can be challenging for some patients. Consequently, there is a pressing need to explore alternative strategies to emulate the anti-inflammatory effects of exercise for chronic diseases. AIM OF REVIEW This review explores the emerging role of green tea bioactive components as potential mitigators of chronic inflammation, offering insights into their capacity to mimic the beneficial effects of exercise. We propose that bioactive components in green tea are promising agents for suppressing chronic inflammation, suggesting their unique capability to replicate the health benefits of exercise. KEY SCIENTIFIC CONCEPTS OF REVIEW This review focuses on several key concepts, including chronic inflammation and its role in chronic diseases, the anti-inflammatory effects of regular exercise, and bioactive components in green tea responsible for its health benefits. It elaborates on scientific evidence supporting the anti-inflammatory properties of green tea bioactive components, such as epigallocatechin gallate (EGCG), and theorizes how these bioactive components might replicate the effects of exercise at a molecular level. Through a comprehensive analysis of current research, this review proposes a novel perspective on the application of green tea as a potential intervention strategy to suppress chronic inflammation, thereby extending the benefits akin to those achieved through exercise.
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Affiliation(s)
- Mohammad Nasb
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Fengxing Li
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Lamis Dayoub
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tong Wu
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Minhui Wei
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Ning Chen
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China.
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Capasso L, De Masi L, Sirignano C, Maresca V, Basile A, Nebbioso A, Rigano D, Bontempo P. Epigallocatechin Gallate (EGCG): Pharmacological Properties, Biological Activities and Therapeutic Potential. Molecules 2025; 30:654. [PMID: 39942757 PMCID: PMC11821029 DOI: 10.3390/molecules30030654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2024] [Revised: 01/26/2025] [Accepted: 01/29/2025] [Indexed: 02/16/2025] Open
Abstract
Epigallocatechin gallate (EGCG), the predominant catechin in green tea, comprises approximately 50% of its total polyphenol content and has garnered widespread recognition for its significant therapeutic potential. As the principal bioactive component of Camellia sinensis, EGCG is celebrated for its potent antioxidant, anti-inflammatory, cardioprotective, and antitumor properties. The bioavailability and metabolism of EGCG within the gut microbiota underscore its systemic effects, as it is absorbed in the intestine, metabolized into bioactive compounds, and transported to target organs. This compound has been shown to influence key physiological pathways, particularly those related to lipid metabolism and inflammation, offering protective effects against a variety of diseases. EGCG's ability to modulate cell signaling pathways associated with oxidative stress, apoptosis, and immune regulation highlights its multifaceted role in health promotion. Emerging evidence underscores EGCG's therapeutic potential in preventing and managing a range of chronic conditions, including cancer, cardiovascular diseases, neurodegenerative disorders, and metabolic syndromes. Given the growing prevalence of lifestyle-related diseases and the increasing interest in natural compounds, EGCG presents a promising avenue for novel therapeutic strategies. This review aims to summarize current knowledge on EGCG, emphasizing its critical role as a versatile natural bioactive agent with diverse clinical applications. Further exploration in both experimental and clinical settings is essential to fully unlock its therapeutic potential.
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Affiliation(s)
- Lucia Capasso
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (L.C.); (A.N.)
| | - Luigi De Masi
- National Research Council (CNR), Institute of Biosciences and BioResources (IBBR), Via Università 133, 80055 Portici, Italy;
| | - Carmina Sirignano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy;
| | - Viviana Maresca
- Department of Life Science, Health, and Health Professions, Link Campus University, 00165 Rome, Italy;
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy;
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (L.C.); (A.N.)
| | - Daniela Rigano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy;
| | - Paola Bontempo
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (L.C.); (A.N.)
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Fawzy RM, Abdel-Aziz AA, Bassiouny K, Fayed AM. Phytocompounds-based therapeutic approach: Investigating curcumin and green tea extracts on MCF-7 breast cancer cell line. J Genet Eng Biotechnol 2024; 22:100339. [PMID: 38494270 PMCID: PMC10980874 DOI: 10.1016/j.jgeb.2023.100339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
BACKGROUND Breast cancer (BC) has transcended lung cancer as the most common cancer in the world. Due to the disease's aggressiveness, rapid growth, and heterogeneity, it is crucial to investigate different therapeutic approaches for treatment. According to the World Health Organization (WHO), Plant-based therapeutics continue to be utilized as safe/non-toxic complementary or alternative treatments for cancer, even in developed countries, regardless of how cutting-edge conventional therapies are. Despite their low bioavailability, curcumin (CUR) and green tea (GT) represent safer therapeutic options. Due to their potent molecular-modulating properties on various cancer-related molecules and signaling pathways, they are considered gold-standard therapeutic agents and have been incorporated into the development of one or more therapeutic strategies of BC treatment. METHODS We investigated the modulatory role of CUR and GT extracts on significant multi molecular targets in MCF-7 BC cell line to assess their potential as BC multi-targeting agents. We analyzed the phytocompounds in GT leaves using High-performance liquid chromatography (HPLC) and Gas chromatography-mass spectrometry (GC-MS) techniques. The mRNA expression levels of Raf-1, Telomerase, Tumor necrosis factor alpha (TNF-α) and Interleukin-8 (IL-8) genes in MCF-7 cells were quantified using quantitative real-time PCR (qRT-PCR). The cytotoxicity of the extracts was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and the released Lactate dehydrogenase (LDH), a valuable marker for identifying the programmed necrosis (necroptosis). Additionally, the concentrations of the necroptosis-related proinflammatory cytokines (TNF-α and IL-8) were measured using enzyme-linked immunosorbent assay (ELISA). RESULTS In contrast to the GT, the results showed the anticancer and cytotoxic properties of CUR against MCF-7 cells, with a relatively higher level of released LDH. The CUR extract downregulated the oncogenic Raf-1, suppressed the Telomerase and upregulated the TNF-α and IL-8 genes. Results from the ELISA showed a notable increase in IL-8 and TNF-α cytokines levels after CUR treatment, which culminated after 72 h. CONCLUSIONS Among both extracts, only CUR effectively modulated the understudy molecular targets, achieving multi-targeting anticancer activity against MCF-7 cells. Moreover, the applied dosage significantly increased levels of the proinflammatory cytokines, which represent a component of the cytokines-targeting-based therapeutic strategy. However, further investigations are recommended to validate this therapeutic approach.
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Affiliation(s)
- Radwa M Fawzy
- Department of Molecular Biology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt.
| | - Amal A Abdel-Aziz
- Department of Molecular Biology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt
| | - Khalid Bassiouny
- Department of Molecular Biology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt
| | - Aysam M Fayed
- Department of Molecular Biology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt
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Alsadi N, Yasavoli-Sharahi H, Mueller R, Cuenin C, Chung F, Herceg Z, Matar C. Protective Mechanisms of Polyphenol-Enriched Blueberry Preparation in Preventing Inflammation in the Skin against UVB-Induced Damage in an Animal Model. Antioxidants (Basel) 2023; 13:25. [PMID: 38275645 PMCID: PMC10812677 DOI: 10.3390/antiox13010025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
UVB significantly impacts the occurrence of cutaneous disorders, ranging from inflammatory to neoplastic diseases. Polyphenols derived from plants have been found to exhibit photoprotective effects against various factors that contribute to skin cancer. During the fermentation of the polyphenol-enriched blueberry preparation (PEBP), small oligomers of polyphenols were released, thus enhancing their photoprotective effects. This study aimed to investigate the protective effects of PEBP on UVB-induced skin inflammation. Topical preparations of polyphenols were applied to the skin of dorsally shaved mice. Mice were subsequently exposed to UVB and were sacrificed 90 min after UVB exposure. This study revealed that pretreatment with PEBP significantly inhibited UVB-induced recruitment of mast and neutrophil cells and prevented the loss of skin thickness. Furthermore, the findings show that PEBP treatment resulted in the downregulation of miR-210, 146a, and 155 and the upregulation of miR-200c and miR-205 compared to the UVB-irradiated mice. Additionally, PEBP was found to reduce the expression of IL-6, IL-1β, and TNFα, inhibiting COX-2 and increasing IL-10 after UVB exposure. Moreover, DNA methylation analysis indicated that PEBP might potentially reduce the activation of inflammation-related pathways such as MAPK, Wnt, Notch, and PI3K-AKT signaling. Our finding suggests that topical application of PEBP treatment may effectively prevent UVB-induced skin damage by inhibiting inflammation.
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Affiliation(s)
- Nawal Alsadi
- Cellular and Molecular Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (N.A.); (H.Y.-S.)
| | - Hamed Yasavoli-Sharahi
- Cellular and Molecular Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (N.A.); (H.Y.-S.)
| | - Rudolf Mueller
- Pathology and Laboratory Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada;
| | - Cyrille Cuenin
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC), 25 Av. Tony Garnier, 69007 Lyon, France; (C.C.); (F.C.); (Z.H.)
| | - Felicia Chung
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC), 25 Av. Tony Garnier, 69007 Lyon, France; (C.C.); (F.C.); (Z.H.)
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Jalan University, Bandar Sunway, Subang Jaya 47500, Malaysia
| | - Zdenko Herceg
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC), 25 Av. Tony Garnier, 69007 Lyon, France; (C.C.); (F.C.); (Z.H.)
| | - Chantal Matar
- Cellular and Molecular Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (N.A.); (H.Y.-S.)
- School of Nutrition, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1H 8M5, Canada
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Ruiz VH, Encinas-Basurto D, Sun B, Eedara BB, Roh E, Alarcon NO, Curiel-Lewandrowski C, Bode AM, Mansour HM. Innovative Rocuronium Bromide Topical Formulation for Targeted Skin Drug Delivery: Design, Comprehensive Characterization, In Vitro 2D/3D Human Cell Culture and Permeation. Int J Mol Sci 2023; 24:ijms24108776. [PMID: 37240122 DOI: 10.3390/ijms24108776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second-most common type of non-melanoma skin cancer and is linked to long-term exposure to ultraviolet (UV) radiation from the sun. Rocuronium bromide (RocBr) is an FDA-approved drug that targets p53-related protein kinase (PRPK) that inhibits the development of UV-induced cSCC. This study aimed to investigate the physicochemical properties and in vitro behavior of RocBr. Techniques such as thermal analysis, electron microscopy, spectroscopy and in vitro assays were used to characterize RocBr. A topical oil/water emulsion lotion formulation of RocBr was successfully developed and evaluated. The in vitro permeation behavior of RocBr from its lotion formulation was quantified with Strat-M® synthetic biomimetic membrane and EpiDerm™ 3D human skin tissue. Significant membrane retention of RocBr drug was evident and more retention was obtained with the lotion formulation compared with the solution. This is the first systematic and comprehensive study to report these findings.
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Affiliation(s)
- Victor H Ruiz
- Skaggs Pharmaceutical Sciences Center, College of Pharmacy, The University of Arizona, Tucson, AZ 85721, USA
| | - David Encinas-Basurto
- Skaggs Pharmaceutical Sciences Center, College of Pharmacy, The University of Arizona, Tucson, AZ 85721, USA
- Department of Physics, Mathematics and Engineering, Campus Navojoa, Universidad de Sonora, Sonora 85880, Mexico
| | - Bo Sun
- Skaggs Pharmaceutical Sciences Center, College of Pharmacy, The University of Arizona, Tucson, AZ 85721, USA
- The University of Arizona Cancer Center, Skin Cancer Institute, Tucson, AZ 85721, USA
| | - Basanth Babu Eedara
- Skaggs Pharmaceutical Sciences Center, College of Pharmacy, The University of Arizona, Tucson, AZ 85721, USA
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Eunmiri Roh
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
- Department of Cosmetic Science, Kwangju Women's University, Gwangju 62396, Republic of Korea
| | - Neftali Ortega Alarcon
- Skaggs Pharmaceutical Sciences Center, College of Pharmacy, The University of Arizona, Tucson, AZ 85721, USA
| | - Clara Curiel-Lewandrowski
- The University of Arizona Cancer Center, Skin Cancer Institute, Tucson, AZ 85721, USA
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA
- Department of Medicine, Division of Dermatology, The University of Arizona College of Medicine, Tucson, AZ 85724, USA
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Heidi M Mansour
- Skaggs Pharmaceutical Sciences Center, College of Pharmacy, The University of Arizona, Tucson, AZ 85721, USA
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
- Department of Medicine, Division of Translational & Regenerative Medicine, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
- BIO5 Institute, The University of Arizona, Tucson, AZ 85721, USA
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Therapeutic Effects of Green Tea Polyphenol (‒)-Epigallocatechin-3-Gallate (EGCG) in Relation to Molecular Pathways Controlling Inflammation, Oxidative Stress, and Apoptosis. Int J Mol Sci 2022; 24:ijms24010340. [PMID: 36613784 PMCID: PMC9820274 DOI: 10.3390/ijms24010340] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
(‒)-Epigallocatechin-3-gallate (EGCG) is the most abundant polyphenol in green tea. Thanks to multiple interactions with cell surface receptors, intracellular signaling pathways, and nuclear transcription factors, EGCG possesses a wide variety of anti-inflammatory, antioxidant, antifibrotic, anti-remodelation, and tissue-protective properties which may be useful in the treatment of various diseases, particularly in cancer, and neurological, cardiovascular, respiratory, and metabolic disorders. This article reviews current information on the biological effects of EGCG in the above-mentioned disorders in relation to molecular pathways controlling inflammation, oxidative stress, and cell apoptosis.
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Sah DK, Khoi PN, Li S, Arjunan A, Jeong JU, Jung YD. (-)-Epigallocatechin-3-Gallate Prevents IL-1β-Induced uPAR Expression and Invasiveness via the Suppression of NF-κB and AP-1 in Human Bladder Cancer Cells. Int J Mol Sci 2022; 23:14008. [PMID: 36430487 PMCID: PMC9697952 DOI: 10.3390/ijms232214008] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
(-)-Epigallocatechin-3-O-gallate (EGCG), a primary green tea polyphenol, has powerful iron scavengers, belongs to the family of flavonoids with antioxidant properties, and can be used to prevent cancer. Urokinase-type plasminogen activator receptors (uPARs) are glycosylphosphatidylinositol (GPI)-anchored cell membrane receptors that have crucial roles in cell invasion and metastasis of several cancers including bladder cancer. The mechanism of action of EGCG on uPAR expression has not been reported clearly yet. In this study, we investigated the effect of EGCG on interleukin (IL)-1β-induced cell invasion and uPAR activity in T24 human bladder cancer cells. Interestingly, nuclear factor (NF)-κB and activator protein (AP)-1 transcription factors were critically required for IL-1β-induced high uPAR expression, and EGCG suppressed the transcriptional activity of both the ERK1/2 and JNK signaling pathways with the AP-1 subunit c-Jun. EGCG blocked the IL-1β-stimulated reactive oxygen species (ROS) production, in turn suppressing NF-κB signaling and anti-invasion effects by inhibiting uPAR expression. These results suggest that EGCG may exert at least part of its anticancer effect by controlling uPAR expression through the suppression of ERK1/2, JNK, AP-1, and NF-κB.
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Affiliation(s)
- Dhiraj Kumar Sah
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Republic of Korea
| | - Pham Ngoc Khoi
- Faculty of Basic Medical Sciences, Pham Ngoc Thach University of Medicine, Ho Chi Minh City 740500, Vietnam
| | - Shinan Li
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Republic of Korea
| | - Archana Arjunan
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Republic of Korea
| | - Jae-Uk Jeong
- Department of Radiation Oncology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea
| | - Young Do Jung
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Republic of Korea
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Zhang Q, Qiao S, Yang C, Jiang G. Nuclear factor-kappa B and effector molecules in photoaging. Cutan Ocul Toxicol 2022; 41:187-193. [PMID: 35658705 DOI: 10.1080/15569527.2022.2081702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Nuclear factor-kappa B (NF-κB) has important but complex functions in the photoaging of the human skin. This protein complex is activated upon UV irradiation and plays a key role in the signalling pathway of the inflammatory cascade. NF-κB induces the expression of various proinflammatory cytokines, such as tumour necrosis factor (TNF) and interleukin-1 (IL-1). These proinflammatory cytokines can in turn stimulate the activation of NF-κB, forming a vicious cycle. These processes cause chronic inflammation and contribute to skin ageing. In addition, the activation of NF-κB upregulates the expression of matrix metalloproteinases (MMPs) and leads to the degradation of structural proteins in the dermis. NF-κB disrupts the barrier function of the skin under prolonged and repeated UV stimulations in these ways. Such activity causes chronic skin damage, followed by the formation of wrinkles, dryness, roughness, laxity, and other photoaging manifestations. This study on the NF-κB signalling pathway and effector molecules provides a new perspective to understand and prevent photoaging.
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Affiliation(s)
- Qiang Zhang
- Department of Dermatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Dermatology, Xuzhou Medical University, Xuzhou, China
| | - Shiyun Qiao
- Department of Dermatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Dermatology, Xuzhou Medical University, Xuzhou, China
| | - Chunsheng Yang
- Department of Dermatology, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, China
| | - Guan Jiang
- Department of Dermatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Dermatology, Xuzhou Medical University, Xuzhou, China
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Torres-Contreras AM, Garcia-Baeza A, Vidal-Limon HR, Balderas-Renteria I, Ramírez-Cabrera MA, Ramirez-Estrada K. Plant Secondary Metabolites against Skin Photodamage: Mexican Plants, a Potential Source of UV-Radiation Protectant Molecules. PLANTS (BASEL, SWITZERLAND) 2022; 11:220. [PMID: 35050108 PMCID: PMC8779981 DOI: 10.3390/plants11020220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Human skin works as a barrier against the adverse effects of environmental agents, including ultraviolet radiation (UVR). Exposure to UVR is associated with a variety of harmful effects on the skin, and it is one of the most common health concerns. Solar UVR constitutes the major etiological factor in the development of cutaneous malignancy. However, more than 90% of skin cancer cases could be avoided with appropriate preventive measures such as regular sunscreen use. Plants, constantly irradiated by sunlight, are able to synthesize specialized molecules to fight against UVR damage. Phenolic compounds, alkaloids and carotenoids constitute the major plant secondary metabolism compounds with relevant UVR protection activities. Hence, plants are an important source of molecules used to avoid UVR damage, reduce photoaging and prevent skin cancers and related illnesses. Due to its significance, we reviewed the main plant secondary metabolites related to UVR protection and its reported mechanisms. In addition, we summarized the research in Mexican plants related to UV protection. We presented the most studied Mexican plants and the photoprotective molecules found in them. Additionally, we analyzed the studies conducted to elucidate the mechanism of photoprotection of those molecules and their potential use as ingredients in sunscreen formulas.
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Affiliation(s)
- Ana Mariel Torres-Contreras
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
| | - Antoni Garcia-Baeza
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
| | - Heriberto Rafael Vidal-Limon
- Centro de Biotecnología FEMSA, Instituto Tecnológico de Monterrey, Avenida Junco de la Vega, Col. Tecnológico, Montrerrey 65849, Mexico;
| | - Isaias Balderas-Renteria
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
| | - Mónica A. Ramírez-Cabrera
- Laboratorio de Farmacología Molecular y Modelos Biológicos, División de Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Av. Guerrero s/n, Col. Treviño, Monterrey 64570, Mexico;
| | - Karla Ramirez-Estrada
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
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10
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Alam M, Ali S, Ashraf GM, Bilgrami AL, Yadav DK, Hassan MI. Epigallocatechin 3-gallate: From green tea to cancer therapeutics. Food Chem 2022; 379:132135. [PMID: 35063850 DOI: 10.1016/j.foodchem.2022.132135] [Citation(s) in RCA: 133] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/22/2021] [Accepted: 01/09/2022] [Indexed: 12/13/2022]
Abstract
Epigallocatechin 3-gallate (EGCG) possesses various biological functions, including anti-cancer and anti-inflammatory properties. EGCG is an abundant polyphenolic component originating from green tea extract that has exhibited versatile bioactivities in combating several cancers. This review highlights the pharmacological features of EGCG and its therapeutic implications in cancer and other metabolic diseases. It modulates numerous signaling pathways, regulating cells' undesired survival and proliferation, thus imparting strong tumor chemopreventive and therapeutic effects. EGCG initiates cell death through the intrinsic pathway and causes inhibition of EGFR, STAT3, and ERK pathways in several cancers. EGCG alters and inhibits ERK1/2, NF-κB, and Akt-mediated signaling, altering the Bcl-2 family proteins ratio and activating caspases in tumor cells. This review focuses on anti-cancer, anti-oxidant, anti-inflammatory, anti-angiogenesis, and apoptotic effects of EGCG. We further highlighted the potential of EGCG in different types of cancer, emphasizing clinical trials formulations that further improve our understanding of the therapeutic management of cancer and inflammatory diseases.
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Affiliation(s)
- Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Sabeeha Ali
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Anwar L Bilgrami
- Deanship of Scientific Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Dharmendra Kumar Yadav
- College of Pharmacy, Gachon University of Medicine and Science, Hambakmoeiro, Yeonsu-gu, Incheon City 21924, South Korea.
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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Natural Antioxidants from Plant Extracts in Skincare Cosmetics: Recent Applications, Challenges and Perspectives. COSMETICS 2021. [DOI: 10.3390/cosmetics8040106] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In recent years, interest in the health effects of natural antioxidants has increased due to their safety and applicability in cosmetic formulation. Nevertheless, efficacy of natural antioxidants in vivo is less documented than their prooxidant properties in vivo. Plant extracts rich in vitamins, flavonoids, and phenolic compounds can induce oxidative damage by reacting with various biomolecules while also providing antioxidant properties. Because the biological activities of natural antioxidants differ, their effectiveness for slowing the aging process remains unclear. This review article focuses on the use of natural antioxidants in skincare and the possible mechanisms underlying their desired effect, along with recent applications in skincare formulation and their limitations.
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Kapoor MP, Sugita M, Fukuzawa Y, Timm D, Ozeki M, Okubo T. Green Tea Catechin Association with Ultraviolet Radiation-Induced Erythema: A Systematic Review and Meta-Analysis. Molecules 2021; 26:molecules26123702. [PMID: 34204433 PMCID: PMC8233826 DOI: 10.3390/molecules26123702] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/15/2021] [Accepted: 06/15/2021] [Indexed: 12/30/2022] Open
Abstract
Catechins are a part of the chemical family of flavonoids, a naturally occurring antioxidant, and a secondary metabolite in certain plants. Green tea catechins are well recognized for their essential anti-inflammatory, photo-protective, antioxidant, and chemo-preventive functions. Ultraviolet radiation is a principal cause of damage to the skin. Studies observed that regular intake of green tea catechins increased the minimal dose of radiation required to induce erythema. The objectives of this systematic review and meta-analysis are to determine the effectiveness of green tea catechins in cutaneous erythema and elucidate whether green tea catechin consumption protects against erythema (sunburn) inflammation. A comprehensive literature search was conducted to identify the relevant studies. Two researchers carried out independent screening, data extraction, and quality assessment according to the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). The pooled effect of green tea catechins on protection against erythema was assessed using approaches fixed-effects or random-effects model to quantify the effectiveness of green tea catechins in the erythema dose-response. Studies not be included in meta-analyses were summarized narratively. Six randomized controlled studies of enrolled studies regularly administrated green tea catechins orally for 6 to 12 weeks involving healthy volunteers comprising a total of 100 participants were included in the analysis. The results revealed green tea catechins have favorable protection against erythema inflammation even at increased minimal erythema dose (MED) of ultraviolet radiation. Meta-analysis results confirm oral supplementation of green tea catechins is highly effective at low-intensity ultraviolet radiation-induced erythema response (MED range; 1.25-1.30) compared to placebo, showing a significant pooling difference (p = 0.002) in erythema index (SMD: -0.35; 95% CI, -0.57 to -0.13; I2 = 4%, p = 0.40) in the random-effects model. The pro-inflammatory signaling pathways through oral supplementation with green tea catechins are an attractive strategy for photo-protection in healthy human subjects and could represent a complementary approach to topical sunscreens. Therefore, studies that involved green tea catechin in topical applications to human subjects were also evaluated separately, and their meta-analysis is presented as a reference. The evidence indicates that regular green tea catechin supplementation is associated with protection against UV-induced damage due to erythema inflammation.
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Affiliation(s)
- Mahendra P. Kapoor
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi 510-0844, Japan; (M.O.); (T.O.)
- Correspondence: ; Tel.: +81-70-6479-6004
| | - Masaaki Sugita
- Faculty of Sport Science, Nippon Sport Science University, 7-1-1 Fukusawa, Setagaya-Ku, Tokyo 158-8508, Japan;
| | - Yoshitaka Fukuzawa
- Preemptive and Integrative Medicine Center, Aichi Medical University Hospital, 1-1 Karimata, Yazako, Nagakute 480-1195, Japan;
| | - Derek Timm
- Taiyo International Inc., 5960 Golden Hills Dr, Minneapolis, MN 55416, USA;
| | - Makoto Ozeki
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi 510-0844, Japan; (M.O.); (T.O.)
| | - Tsutomu Okubo
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi 510-0844, Japan; (M.O.); (T.O.)
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Feng M, Zheng X, Wan J, Pan W, Xie X, Hu B, Wang Y, Wen H, Cai S. Research progress on the potential delaying skin aging effect and mechanism of tea for oral and external use. Food Funct 2021; 12:2814-2828. [PMID: 33666618 DOI: 10.1039/d0fo02921a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Skin aging is characterized by the gradual loss of elasticity, the formation of wrinkles and various color spots, the degradation of extracellular matrix proteins, and the structural changes of the dermis. With the increasingly prominent problems of environmental pollution, social pressure, ozone layer thinning and food safety, skin problems have become more and more complex. The skin can reflect the overall health of the body. Skincare products for external use alone cannot fundamentally solve skin problems; it needs to improve the overall health of the body. Based on the literature review in recent 20 years, this paper systematically reviewed the potential delaying effect of tea and its active ingredients on skin aging by oral and external use. Tea is the second-largest health drink after water. It is rich in tea polyphenols, l-theanine, tea pigments, caffeine, tea saponins, tea polysaccharides and other secondary metabolites. Tea and its active substances have whitening, nourishing, anti-wrinkle, removing spots and other skincare effects. Its mechanism of action is ultraviolet absorption, antioxidant, anti-inflammatory, inhibition of extracellular matrix aging, inhibiting the accumulation of melanin and toxic oxidation products, balancing intestinal and skin microorganisms, and improving mood and sleep, among other effects. At present, tea elements skincare products are deeply loved by consumers. This paper provides a scientific theoretical basis for tea-assisted beauty and the high-end application of tea in skincare products.
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Affiliation(s)
- Meiyan Feng
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha 410128, China
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Huang SC, Kao YH, Shih SF, Tsai MC, Lin CS, Chen LW, Chuang YP, Tsui PF, Ho LJ, Lai JH, Chen SJ. Epigallocatechin-3-gallate exhibits immunomodulatory effects in human primary T cells. Biochem Biophys Res Commun 2021; 550:70-76. [PMID: 33689882 DOI: 10.1016/j.bbrc.2021.02.132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/24/2021] [Indexed: 01/07/2023]
Abstract
T cells secrete several inflammatory cytokines that play a critical role in the progression of atherosclerosis. Although green tea epigallocatechin-3-gallate (EGCG) exerts anti-inflammatory and anti-atherosclerotic effects in animals, few studies have identified the mechanism underlying these effects in human primary T cells. This study investigated the pathway involved in EGCG modulation of cytokine secretion in activated human primary T cells. We pre-treated human primary T cells with EGCG (0.1, 1, 5, 10, and 20 μM) for 4 h and incubated them with or without phorbol 12-myristate 13-acetate and ionomycin (P/I) for 20 h. The cytokine production, activator protein (AP)-1 binding activity, and level of mitogen-activated protein kinase (MAPK) were assessed using enzyme-linked immunosorbent assay, electrophoretic mobility shift assay, and Western blotting, respectively. At 10 and 20 μM, EGCG decreased interleukin (IL)-2 levels by 26.0% and 38.8%, IL-4 levels by 41.5% and 55.9%, INF-γ levels by 31.3% and 34.7%, and tumor-necrosis factor (TNF)-α levels by 23.0% and 37.6%, respectively. In addition, the level of phosphorylated c-Jun N-terminal (p-JNK) and extracellular signal-regulated kinase (p-ERK) was decreased, but not the level of p-p38 MAPK. EGCG did not alter any of the total protein amounts, suggesting a selective effect on specific types of MAPKs in stimulated human T cells. EGCG tended to inactivate AP-1 DNA-binding activity. The P/I-induced production of IL-2, IL-4, INF-γ, and TNF-α by human T cells was suppressed by AP-1 inhibitor in a concentration-dependent manner. In conclusion, EGCG suppressed cytokine secretion in activated human primary T cells, and this effect was likely mediated by AP-1 inactivation through the ERK and JNK, but not p38 MAPK, pathways. These results may be related to the mechanisms through which EGCG inhibits immune- or inflammation-related atherogenesis.
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Affiliation(s)
- Shih-Chung Huang
- Division of Cardiology, Department of Medicine, Kaohsiung Armed Forces General Hospital, Taiwan
| | - Yung-Hsi Kao
- Department of Life Sciences, National Central University, Jhongli, Taoyuan, 32001, Taiwan
| | - Shao-Fu Shih
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Min-Chien Tsai
- Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei, Taiwan
| | - Chin-Sheng Lin
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Liv Weichien Chen
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Yi-Ping Chuang
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Pi-Fen Tsui
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Ling-Jun Ho
- Institute of Cellular and System Medicine, National Health Research Institute, Zhunan, Miaoli, Taiwan
| | - Jenn-Haung Lai
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Gueishan, Taoyuan, Taiwan
| | - Sy-Jou Chen
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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The tea catechin epigallocatechin gallate inhibits NF-κB-mediated transcriptional activation by covalent modification. Arch Biochem Biophys 2020; 695:108620. [DOI: 10.1016/j.abb.2020.108620] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 02/06/2023]
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Wilgus TA. Inflammation as an orchestrator of cutaneous scar formation: a review of the literature. PLASTIC AND AESTHETIC RESEARCH 2020; 7:54. [PMID: 33123623 PMCID: PMC7592345 DOI: 10.20517/2347-9264.2020.150] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Inflammation is a key phase in the cutaneous wound repair process. The activation of inflammatory cells is critical for preventing infection in contaminated wounds and results in the release of an array of mediators, some of which stimulate the activity of keratinocytes, endothelial cells, and fibroblasts to aid in the repair process. However, there is an abundance of data suggesting that the strength of the inflammatory response early in the healing process correlates directly with the amount of scar tissue that will eventually form. This review will summarize the literature related to inflammation and cutaneous scar formation, highlight recent discoveries, and discuss potential treatment modalities that target inflammation to minimize scarring.
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Affiliation(s)
- Traci A Wilgus
- Department of Pathology, Ohio State University, Columbus, OH 43210, USA
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Islam SU, Ahmed MB, Ahsan H, Islam M, Shehzad A, Sonn JK, Lee YS. An Update on the Role of Dietary Phytochemicals in Human Skin Cancer: New Insights into Molecular Mechanisms. Antioxidants (Basel) 2020; 9:E916. [PMID: 32993035 PMCID: PMC7600476 DOI: 10.3390/antiox9100916] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 12/24/2022] Open
Abstract
Human skin is continuously subjected to environmental stresses, as well as extrinsic and intrinsic noxious agents. Although skin adopts various molecular mechanisms to maintain homeostasis, excessive and repeated stresses can overwhelm these systems, leading to serious cutaneous damage, including both melanoma and non-melanoma skin cancers. Phytochemicals present in the diet possess the desirable effects of protecting the skin from damaging free radicals as well as other benefits. Dietary phytochemicals appear to be effective in preventing skin cancer and are inexpensive, widely available, and well tolerated. Multiple in vitro and in vivo studies have demonstrated the significant anti-inflammatory, antioxidant, and anti-angiogenic characteristics of dietary phytochemicals against skin malignancy. Moreover, dietary phytochemicals affect multiple important cellular processes including cell cycle, angiogenesis, and metastasis to control skin cancer progression. Herein, we discuss the advantages of key dietary phytochemicals in whole fruits and vegetables, their bioavailability, and underlying molecular mechanisms for preventing skin cancer. Current challenges and future prospects for research are also reviewed. To date, most of the chemoprevention investigations have been conducted preclinically, and additional clinical trials are required to conform and validate the preclinical results in humans.
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Affiliation(s)
- Salman Ul Islam
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
| | - Muhammad Bilal Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
| | - Haseeb Ahsan
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
- Department of Pharmacy, Faculty of Life and Environmental Sciences, University of Peshawar, Peshawar 25120, Pakistan
| | - Mazharul Islam
- Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah 2509, Oman;
| | - Adeeb Shehzad
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
| | - Jong Kyung Sonn
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
| | - Young Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
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Lakshmi SP, Reddy AT, Kodidhela LD, Varadacharyulu NC. Epigallocatechin gallate diminishes cigarette smoke-induced oxidative stress, lipid peroxidation, and inflammation in human bronchial epithelial cells. Life Sci 2020; 259:118260. [PMID: 32795541 DOI: 10.1016/j.lfs.2020.118260] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/28/2020] [Accepted: 08/09/2020] [Indexed: 02/07/2023]
Abstract
Cigarette smoke (CS), the major risk factor of chronic obstructive pulmonary disease (COPD), contains numerous free radicals that can cause oxidative stress and exaggerated inflammatory responses in the respiratory system. Lipid peroxidation which is oxidative degradation of polyunsaturated fatty acids and results in cell damage has also been associated with COPD pathogenesis. Increased levels of lipid peroxidation as well as its end product 4-hydroxynonenal have indeed been detected in COPD patients. Additionally, reactive oxygen species such as those contained in CS can activate nuclear factor-κB signaling pathway, initiating cascades of proinflammatory mediator expression. As emerging evidence attests to the antioxidative and anti-inflammatory properties of tea catechins, we sought to determine whether epigallocatechin gallate, the most abundant tea catechin, can provide protection against oxidative stress, lipid peroxidation, and inflammatory responses caused by CS. We found that EGCG treatment blocked cigarette smoke extract (CSE)-induced oxidative stress as indicated by decreased production and accumulation of reactive oxygen species in airway epithelial cells (AECs). Likewise, lipid peroxidation in CSE-stimulated AECs was suppressed by EGCG. Our findings further suggest that EGCG sequestered 4-hydroxynonenal and interfered with its protein adduct formation. Lastly, we show that EGCG inhibited nuclear factor-κB activation and the downstream expression of proinflammatory mediators. In summary, our study describing the antioxidative and anti-inflammatory effects of EGCG in CSE-exposed AECs provide valuable information about the therapeutic potential of this tea catechin for COPD.
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Affiliation(s)
- Sowmya P Lakshmi
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, India.
| | - Aravind T Reddy
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, India
| | - Lakshmi Devi Kodidhela
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, India
| | - N Ch Varadacharyulu
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, India
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19
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The TERT copy number gain is sensitive to telomerase inhibitors in human melanoma. Clin Sci (Lond) 2020; 134:193-205. [PMID: 31919521 DOI: 10.1042/cs20190890] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 01/03/2020] [Accepted: 01/09/2020] [Indexed: 12/11/2022]
Abstract
Telomerase reverse transcriptase (TERT) copy number gain is frequently observed in Asian melanoma patients. Here, we explored the correlation between TERT copy number and the effect of telomerase inhibitors in melanoma. A total of 78 melanoma cases were enrolled in the study. The TERT copy number was examined by QuantiGene Plex DNA assay. The sensitivity to telomerase inhibitors was evaluated in cell lines and patient-derived xenograft (PDX) models with or without TERT copy number gain. Among the 78 patients, 33.3% showed TERT copy number gain, and the incidence of this gain in acral melanoma (61.5%) was higher than that in other melanoma subtypes (P=0.02). The telomerase inhibitors 6-thio-2'-deoxyguanosine (6-Thio-dG) and epigallocatechin-3-gallate (EGCG) inhibited cell viability and repressed tumor growth in PDX models with TERT copy number gain. TERT copy number gain is frequently observed in Chinese patients with melanoma. Targeting telomerase may benefit melanoma patients with TERT copy number gain.
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Sharifi-Rad M, Pezzani R, Redaelli M, Zorzan M, Imran M, Ahmed Khalil A, Salehi B, Sharopov F, Cho WC, Sharifi-Rad J. Preclinical Pharmacological Activities of Epigallocatechin-3-gallate in Signaling Pathways: An Update on Cancer. Molecules 2020; 25:467. [PMID: 31979082 PMCID: PMC7037968 DOI: 10.3390/molecules25030467] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/10/2020] [Accepted: 01/19/2020] [Indexed: 12/13/2022] Open
Abstract
Epigallocatechin gallate (EGCG) is the main bioactive component of catechins predominantly present in svarious types of teas. EGCG is well known for a wide spectrum of biological activity as an anti-oxidative, anti-inflammatory, and anti-tumor agent. The effect of EGCG on cell death mechanisms via the induction of apoptosis, necrosis, and autophagy has been documented. Moreover, its anti-proliferative and chemopreventive action has been demonstrated in many cancer cell lines. It was also involved in the modulation of cyclooxygenase-2, in oxidative stress and inflammation of different cell processes. EGCG has been reported as a promising target for plasma membrane proteins, such as epidermal growth factor receptor (EGFR). In addition, it has been demonstrated a mechanism of action relying on the inhibition of ERK1/2, p38 MAPK, NF-κB, and vascular endothelial growth factor (VEGF). EGCG and its derivatives were used in proteasome inhibition and they were involved in epigenetic mechanisms. In summary, EGCG is the most predominant and bioactive constituent of teas and it has a pivotal role in cancer prevention. Its preclinical pharmacological activities are associated with complex molecular mechanisms that involve numerous signaling pathways.
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Affiliation(s)
- Mehdi Sharifi-Rad
- Department of Medical Parasitology, Kerman University of Medical Sciences, Kerman 7616913555, Iran;
| | - Raffaele Pezzani
- Endocrinology Unit, Department of Medicine (DIMED), University of Padova, via Ospedale 105, 35128 Padova, Italy;
- AIROB, Associazione Italiana per la Ricerca Oncologica di Base, 35046 Padova, Italy;
| | - Marco Redaelli
- AIROB, Associazione Italiana per la Ricerca Oncologica di Base, 35046 Padova, Italy;
- Venetian Institute for Molecular Science and Experimental Technologies, VIMSET, Pz. Milani 4, Liettoli di Campolongo Maggiore (VE), 30010 Venice, Italy
| | - Maira Zorzan
- Endocrinology Unit, Department of Medicine (DIMED), University of Padova, via Ospedale 105, 35128 Padova, Italy;
- Venetian Institute for Molecular Science and Experimental Technologies, VIMSET, Pz. Milani 4, Liettoli di Campolongo Maggiore (VE), 30010 Venice, Italy
| | - Muhammad Imran
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore 54590, Pakistan; (M.I.); (A.A.K.)
| | - Anees Ahmed Khalil
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore 54590, Pakistan; (M.I.); (A.A.K.)
| | - Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran
| | - Farukh Sharopov
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, Dushanbe 734003, Tajikistan
| | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong, China
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
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21
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Yeager DG, Lim HW. What's New in Photoprotection: A Review of New Concepts and Controversies. Dermatol Clin 2019; 37:149-157. [PMID: 30850037 DOI: 10.1016/j.det.2018.11.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cumulative ultraviolet exposure plays a critical role in photodamage. Recent advancements in photomedicine have resulted in a more thorough understanding of these mechanisms. Despite this, the adoption of routine sun protective practices is commonly not undertaken regularly by a large proportion of the public. Various obstacles exist that contribute to the public's nonadherence to these practices. Sunscreens, which are an integral component in all photoprotective regimens, have been questioned recently in terms of their safety. The aim of this article is to provide an overview of new concepts in photoprotection and also address current controversies pertaining to sunscreens.
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Affiliation(s)
- Danielle G Yeager
- Department of Dermatology, Henry Ford Medical Center, 3031 West Grand Boulevard, Suite 800, Detroit, MI 48202, USA.
| | - Henry W Lim
- Department of Dermatology, Henry Ford Medical Center, 3031 West Grand Boulevard, Suite 800, Detroit, MI 48202, USA
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22
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Park NH, Bae IH, Han S, Kim M, Lee SH, Park WS, Lee CS, Hwang JS. Anti-inflammatory effect of green tea petiole extracts in poly(I:C)–stimulated human epidermal keratinocytes and a human 3D skin equivalent. EUR J INFLAMM 2019. [DOI: 10.1177/2058739219857576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Green tea is one of the most popular non-alcoholic beverage crops worldwide. Leaf extracts of the green tea, Camellia sinensis, are known to have natural anti-oxidant and anti-inflammatory effects. However, relatively few studies have focused on the biological activities of green tea petiole (GTP) (the stalk that attaches the leaf blade to the stem, currently considered waste material) compared with other parts of the tree, such as the leaf, root, and flower. Here, we report the first investigation of the anti-inflammatory effect of GTP extract against poly(I:C)–stimulated human keratinocytes (a model of skin inflammatory conditions) and EpiDerm (a three-dimensional skin equivalent). Our results reveal that GTP extract suppresses the induction of the messenger ribonucleic acids (mRNAs) encoding pro-inflammatory cytokines (tumor necrosis factor alpha (TNF-α), Interleukin 1 beta (IL-1β), and Interleukin-8 (IL-8)) and matrix metalloproteinase-1 (MMP-1). These findings indicate that GTP extract could prove useful in protecting skin cells from inflammatory conditions and skin aging.
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Affiliation(s)
- Nok Hyun Park
- Department of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Republic of Korea
| | - Il-Hong Bae
- Basic Research & Innovation Division, Amorepacific Corporation R&D Center, Yongin-si, Republic of Korea
| | - Seonsoo Han
- Safety & Regulatory Division, Amorepacific Corporation R&D Center, Yongin-si, Republic of Korea
| | - Minkee Kim
- Safety & Regulatory Division, Amorepacific Corporation R&D Center, Yongin-si, Republic of Korea
| | - Sung Hoon Lee
- Basic Research & Innovation Division, Amorepacific Corporation R&D Center, Yongin-si, Republic of Korea
| | - Won Seok Park
- Basic Research & Innovation Division, Amorepacific Corporation R&D Center, Yongin-si, Republic of Korea
| | - Chang Seok Lee
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam-si, Republic of Korea
| | - Jae Sung Hwang
- Department of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Republic of Korea
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Iqbal J, Abbasi BA, Ahmad R, Batool R, Mahmood T, Ali B, Khalil AT, Kanwal S, Afzal Shah S, Alam MM, Bashir S, Badshah H, Munir A. Potential phytochemicals in the fight against skin cancer: Current landscape and future perspectives. Biomed Pharmacother 2019; 109:1381-1393. [DOI: 10.1016/j.biopha.2018.10.107] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 10/12/2018] [Accepted: 10/20/2018] [Indexed: 02/06/2023] Open
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24
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Gulias-Cañizo R, Lagunes-Guillén A, González-Robles A, Sánchez-Guzmán E, Castro-Muñozledo F. (-)-Epigallocatechin-3-gallate, reduces corneal damage secondary from experimental grade II alkali burns in mice. Burns 2018; 45:398-412. [PMID: 30600126 DOI: 10.1016/j.burns.2018.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/02/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Since recent reports have shown that (-)-Epigallocatechin-3-gallate (EGCG) could be used for treating proliferative and inflammatory disorders, we explored its use for the management of corneal chemical burns. MATERIALS AND METHODS Initially, EGCG was assayed on the rabbit corneal epithelial cell line RCE1(5T5) to establish the best testing conditions, and to avoid unwanted outcomes in the experimental animals. Then, we studied its effects on cell proliferation, cell cycle progression and cell differentiation. Afterwards, we instilled EGCG in experimental grade II corneal alkali burns in mice, three times a day up to 21days, and evaluated by slit lamp examination and histological sections of corneal epithelial, corneal endothelial and stromal edema, as well as the presence of inflammatory cells and neovascularization. RESULTS EGCG reduced cell growth and led to a decline in the proportion of proliferative cells in a concentration dependent manner. At 10μM, EGCG promoted cell differentiation, an effect not related with apoptosis or cytotoxicity. When 10μM EGCG was instilled in corneal alkali burns in mice three times a day up to 21days, EGCG significantly reduced corneal opacity and neovascularization. The improved clinical appearance of the cornea was associated to a controlled epithelial growth; epithelial morphology was similar to that observed in normal epithelium and contrasted with the hyperproliferative, desquamating epithelium observed in control burn wounds. EGCG reduced corneal, stromal and endothelial edema, and wound inflammation. CONCLUSION This work constitutes the first evidence for the use of EGCG in the acute phase of a corneal alkali burn, representing a possible novel alternative to improve patient outcomes as an add-on therapy.
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Affiliation(s)
- Rosario Gulias-Cañizo
- Hospital "Luis Sánchez Bulnes" de la Asociación para Evitar la Ceguera en, México City, México; Departamento de Biología Celular, CINVESTAV-IPN. Apdo. Postal 14-740, México D.F. 07000, México
| | - Anell Lagunes-Guillén
- Departamento de Infectómica y Patogénesis Molecular, CINVESTAV-IPN. Apdo. Postal 14-740, México D.F. 07000, México
| | - Arturo González-Robles
- Departamento de Infectómica y Patogénesis Molecular, CINVESTAV-IPN. Apdo. Postal 14-740, México D.F. 07000, México
| | - Erika Sánchez-Guzmán
- Departamento de Biología Celular, CINVESTAV-IPN. Apdo. Postal 14-740, México D.F. 07000, México
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25
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Agro-Industrial By-Products and Their Bioactive Compounds—An Ally against Oxidative Stress and Skin Aging. COSMETICS 2018. [DOI: 10.3390/cosmetics5040058] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The increased consumer awareness towards hazards related with sun exposure has given a boost in the cosmetics industry and particularly the sun care market. Human skin is continually being threatened by the UV irradiation present in sunlight and acute UV exposure leads to skin photoaging. Cosmetic and/or dermatological applications include several bioactive compounds that contribute to the regulation of epidermal homeostasis by providing protection against solar radiation and improving the antioxidant activity of epidermis. Plant extracts are sources of active ingredients with intense therapeutic properties, and the topical application or oral intake of these compounds could ameliorate skin condition. Nowadays, there is a growing demand for the application of the bioactive agents contained in agro-industrial byproducts in sun care products, since many of them have shown promising properties as skin photoprotectants. However, well-conducted clinical studies are required to prove their safety and efficacy before they could be regularly used. Environmentally friendly extraction and sustainable techniques are therefore under examination for recovering such compounds from agro-industrial byproducts and converting them into innovative high-value natural ingredients used in cosmetic formulations.
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26
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Gupta SC, Kunnumakkara AB, Aggarwal S, Aggarwal BB. Inflammation, a Double-Edge Sword for Cancer and Other Age-Related Diseases. Front Immunol 2018; 9:2160. [PMID: 30319623 PMCID: PMC6170639 DOI: 10.3389/fimmu.2018.02160] [Citation(s) in RCA: 164] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/31/2018] [Indexed: 12/12/2022] Open
Abstract
Increasing evidence from diverse sources during the past several years has indicated that long-term, low level, chronic inflammation mediates several chronic diseases including cancer, arthritis, obesity, diabetes, cardiovascular diseases, and neurological diseases. The inflammatory molecules and transcription factors, adhesion molecules, AP-1, chemokines, C-reactive protein (CRP), cyclooxygenase (COX)-2, interleukins (ILs), 5-lipooxygenase (5-LOX), matrix metalloproteinases (MMPs), nuclear factor (NF)-kB, signal transducer and activator of transcription 3 (STAT3), tumor necrosis factor (TNF), and vascular endothelial growth factor (VEGF) are molecular links between inflammation and chronic diseases. Thus, suppression of inflammatory molecules could be potential strategy for the prevention and therapy of chronic diseases. The currently available drugs against chronic diseases are highly expensive, minimally effective and produce several side effects when taken for long period of time. The focus of this review is to discuss the potential of nutraceuticals derived from “Mother Nature” such as apigenin, catechins, curcumin, ellagic acid, emodin, epigallocatechin gallate, escin, fisetin, flavopiridol, genistein, isoliquiritigenin, kaempferol, mangostin, morin, myricetin, naringenin, resveratrol, silymarin, vitexin, and xanthohumol in suppression of these inflammatory pathways. Thus, these nutraceuticals offer potential in preventing or delaying the onset of chronic diseases. We provide evidence for the potential of these nutraceuticals from pre-clinical and clinical studies.
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Affiliation(s)
- Subash Chandra Gupta
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | | | - Sadhna Aggarwal
- Department of Biotechnology, AIl India Institute of Medical Sciences, New Delhi, India
| | - Bharat B Aggarwal
- Inflammation Research Center, San Diego, California, CA, United States
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27
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Grube S, Ewald C, Kögler C, Lawson McLean A, Kalff R, Walter J. Achievable Central Nervous System Concentrations of the Green Tea Catechin EGCG Induce Stress in Glioblastoma Cells in Vitro. Nutr Cancer 2018; 70:1145-1158. [PMID: 30198785 DOI: 10.1080/01635581.2018.1495239] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The polyphenolic compounds present in green tea are preventative against cancer in several animal tumor models. However, direct cytotoxic effects on cancer cells have also been reported. In order to determine whether drinking of green tea has chemopreventive or cytotoxic effects on brain cancer cells, we investigated the effect of the major green tea polyphenol EGCG as a pure substance and as tea extract dietary supplement on primary human glioblastoma cell cultures at the CNS-achievable concentration of 100 nM reported in the literature. We compared this with the effect of the cytotoxic concentration of 500 μM determined to be specific for the investigated primary glioblastoma cultures. After treatment with 500 µM EGCG, strong induction of autophagy and apoptosis was observed. Under treatment with 100 nM EGCG, glioblastoma cells proliferated over the entire observation period of 6 days without any detectable signs of cell death. Only within the first 12 h of treatment was increased accumulation of autophagic vacuoles and increased reactive oxygen species production as a stress response demonstrated. Mild forms of stress, such as treatment with 100 nM EGCG, activate different endogenous repair mechanisms to protect cells. Our data imply that drinking of green tea may have chemopreventive effects, but no direct cytotoxic properties.
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Affiliation(s)
- Susanne Grube
- a Department of Neurosurgery , Section of Experimental Neurooncology, University Hospital Jena - Friedrich Schiller University Jena , Jena , Germany
| | - Christian Ewald
- a Department of Neurosurgery , Section of Experimental Neurooncology, University Hospital Jena - Friedrich Schiller University Jena , Jena , Germany.,b Department of Neurosurgery , Brandenburg Medical School, Campus Brandenburg an der Havel , Brandenburg an der Havel , Germany
| | - Christine Kögler
- a Department of Neurosurgery , Section of Experimental Neurooncology, University Hospital Jena - Friedrich Schiller University Jena , Jena , Germany
| | - Aaron Lawson McLean
- a Department of Neurosurgery , Section of Experimental Neurooncology, University Hospital Jena - Friedrich Schiller University Jena , Jena , Germany
| | - Rolf Kalff
- a Department of Neurosurgery , Section of Experimental Neurooncology, University Hospital Jena - Friedrich Schiller University Jena , Jena , Germany
| | - Jan Walter
- a Department of Neurosurgery , Section of Experimental Neurooncology, University Hospital Jena - Friedrich Schiller University Jena , Jena , Germany
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28
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Liu G, Zhang W. Long non-coding RNA HOTAIR promotes UVB-induced apoptosis and inflammatory injury by up-regulation of PKR in keratinocytes. ACTA ACUST UNITED AC 2018; 51:e6896. [PMID: 29898032 PMCID: PMC6002131 DOI: 10.1590/1414-431x20186896] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 04/09/2018] [Indexed: 12/14/2022]
Abstract
Excessive exposure to ultraviolet (UV) rays can cause damage of the skin and may
induce cancer, immunosuppression, photoaging, and inflammation. The long
non-coding RNA (lncRNA) HOX antisense intergenic RNA (HOTAIR) is involved in
multiple human biological processes. However, its role in UVB-induced
keratinocyte injury is unclear. This study was performed to investigate the
effects of HOTAIR in UVB-induced apoptosis and inflammatory injury in human
keratinocytes (HaCaT cells). Quantitative real-time polymerase chain reaction
was performed to analyze the expression levels of HOTAIR, PKR, TNF-α, and IL-6.
Cell viability was measured using trypan blue exclusion method and cell
apoptosis using flow cytometry and western blot. ELISA was used to measure the
concentrations of TNF-α and IL-6. Western blot was used to measure the
expression of PKR, apoptosis-related proteins, and PI3K/AKT and NF-κB pathway
proteins. UVB induced HaCaT cell injury by inhibiting cell viability and
promoting cell apoptosis and expressions of IL-6 and TNF-α. UVB also promoted
the expression of HOTAIR. HOTAIR suppression increased cell viability and
decreased apoptosis and expression of inflammatory factors in UVB-treated cells.
HOTAIR also promoted the expression of PKR. Overexpression of HOTAIR decreased
cell viability and increased cell apoptosis and expression of inflammatory
factors in UVB-treated cells by upregulating PKR. Overexpression of PKR
decreased cell viability and promoted cell apoptosis in UVB-treated cells.
Overexpression of PKR activated PI3K/AKT and NF-κB pathways. Our findings
identified an essential role of HOTAIR in promoting UVB-induced apoptosis and
inflammatory injury by up-regulating PKR in keratinocytes.
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Affiliation(s)
- Guo Liu
- Department of Burns and Plastic Surgery, Jining No.1 People's Hospital, Jining, Shandong, China
| | - Wenhao Zhang
- Department of Burns and Plastic Surgery, Jining No.1 People's Hospital, Jining, Shandong, China
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29
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Secondary Plant Metabolites for Sun Protective Cosmetics: From Pre-Selection to Product Formulation. COSMETICS 2018. [DOI: 10.3390/cosmetics5020032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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30
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Dunaway S, Odin R, Zhou L, Ji L, Zhang Y, Kadekaro AL. Natural Antioxidants: Multiple Mechanisms to Protect Skin From Solar Radiation. Front Pharmacol 2018; 9:392. [PMID: 29740318 PMCID: PMC5928335 DOI: 10.3389/fphar.2018.00392] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/05/2018] [Indexed: 12/13/2022] Open
Abstract
Human skin exposed to solar ultraviolet radiation (UVR) results in a dramatic increase in the production of reactive oxygen species (ROS). The sudden increase in ROS shifts the natural balance toward a pro-oxidative state, resulting in oxidative stress. The detrimental effects of oxidative stress occur through multiple mechanisms that involve alterations to proteins and lipids, induction of inflammation, immunosuppression, DNA damage, and activation of signaling pathways that affect gene transcription, cell cycle, proliferation, and apoptosis. All of these alterations promote carcinogenesis and therefore, regulation of ROS levels is critical to the maintenance of normal skin homeostasis. Several botanical products have been found to exhibit potent antioxidant capacity and the ability to counteract UV-induced insults to the skin. These natural products exert their beneficial effects through multiple pathways, including some known to be negatively affected by solar UVR. Aging of the skin is also accelerated by UVR exposure, in particular UVA rays that penetrate deep into the epidermis and the dermis where it causes the degradation of collagen and elastin fibers via oxidative stress and activation of matrix metalloproteinases (MMPs). Because natural compounds are capable of attenuating some of the UV-induced aging effects in the skin, increased attention has been generated in the area of cosmetic sciences. The focus of this review is to cover the most prominent phytoproducts with potential to mitigate the deleterious effects of solar UVR and suitability for use in topical application.
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Affiliation(s)
- Spencer Dunaway
- Department of Dermatology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Rachel Odin
- Department of Dermatology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Linli Zhou
- Department of Dermatology, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Pharmaceutical Sciences, University of Cincinnati College of Pharmacy, Cincinnati, OH, United States
| | - Liyuan Ji
- Department of Dermatology, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Pharmaceutical Sciences, University of Cincinnati College of Pharmacy, Cincinnati, OH, United States
| | - Yuhang Zhang
- Division of Pharmaceutical Sciences, University of Cincinnati College of Pharmacy, Cincinnati, OH, United States
| | - Ana L Kadekaro
- Department of Dermatology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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31
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Phytochemicals in Skin Cancer Prevention and Treatment: An Updated Review. Int J Mol Sci 2018; 19:ijms19040941. [PMID: 29565284 PMCID: PMC5979545 DOI: 10.3390/ijms19040941] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/12/2018] [Accepted: 03/20/2018] [Indexed: 01/16/2023] Open
Abstract
Skin is the largest human organ, our protection against various environmental assaults and noxious agents. Accumulation of these stress events may lead to the formation of skin cancers, including both melanoma and non-melanoma skin cancers. Although modern targeted therapies have ameliorated the management of cutaneous malignancies, a safer, more affordable, and more effective strategy for chemoprevention and treatment is clearly needed for the improvement of skin cancer care. Phytochemicals are biologically active compounds derived from plants and herbal products. These agents appear to be beneficial in the battle against cancer as they exert anti-carcinogenic effects and are widely available, highly tolerated, and cost-effective. Evidence has indicated that the anti-carcinogenic properties of phytochemicals are due to their anti-oxidative, anti-inflammatory, anti-proliferative, and anti-angiogenic effects. In this review, we discuss the preventive potential, therapeutic effects, bioavailability, and structure–activity relationship of these selected phytochemicals for the management of skin cancers. The knowledge compiled here will provide clues for future investigations on novel oncostatic phytochemicals and additional anti-skin cancer mechanisms.
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32
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Zhang J, Lei Z, Huang Z, Zhang X, Zhou Y, Luo Z, Zeng W, Su J, Peng C, Chen X. Epigallocatechin-3-gallate(EGCG) suppresses melanoma cell growth and metastasis by targeting TRAF6 activity. Oncotarget 2018; 7:79557-79571. [PMID: 27791197 PMCID: PMC5346735 DOI: 10.18632/oncotarget.12836] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/07/2016] [Indexed: 11/30/2022] Open
Abstract
TRAF6 (TNF Receptor-Associated Factor 6) is an E3 ubiquitin ligase that contains a Ring domain, induces K63-linked polyubiquitination, and plays a critical role in signaling transduction. Our previous results demonstrated that TRAF6 is overexpressed in melanoma and that TRAF6 knockdown dramatically attenuates tumor cell growth and metastasis. In this study, we found that EGCG can directly bind to TRAF6, and a computational model of the interaction between EGCG and TRAF6 revealed that EGCG probably interacts with TRAF6 at the residues of Gln54, Gly55, Asp57 ILe72, Cys73 and Lys96. Among these amino acids, mutation of Gln54, Asp57, ILe72 in TRAF6 could destroy EGCG bound to TRAF6, furthermore, our results demonstrated that EGCG significantly attenuates interaction between TRAF6 and UBC13(E2) and suppresses TRAF6 E3 ubiquitin ligase activity in vivo and in vitro. Additionally, the phosphorylation of IκBα, p-TAK1 expression are decreased and the nuclear translocation of p65 and p50 is blocked by treatment with EGCG, leading to inactivation of the NF-κB pathway. Moreover, EGCG significantly inhibits cell growth as well as the migration and invasion of melanoma cells. Taken together, these findings show that EGCG is a novel E3 ubiquitin ligase inhibitor that could be used to target TRAF6 for chemotherapy or the prevention of melanoma.
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Affiliation(s)
- Jianglin Zhang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhou Lei
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zunnan Huang
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong, China
| | - Xu Zhang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Youyou Zhou
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhongling Luo
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Weiqi Zeng
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Juan Su
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Cong Peng
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Chen
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China
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33
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Afnan Q, Kaiser PJ, Rafiq RA, Nazir LA, Bhushan S, Bhardwaj SC, Sandhir R, Tasduq SA. Glycyrrhizic acid prevents ultraviolet-B-induced photodamage: a role for mitogen-activated protein kinases, nuclear factor kappa B and mitochondrial apoptotic pathway. Exp Dermatol 2018; 25:440-6. [PMID: 26836460 DOI: 10.1111/exd.12964] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Glycyrrhizic acid (GA), a natural triterpene, has received attention as an agent that has protective effects against chronic diseases including ultraviolet UV-B-induced skin photodamage. However, the mechanism of its protective effect remains elusive. Here, we used an immortalized human keratinocyte cell line (HaCaT) and a small animal model (BALB/c mice), to investigate the protective effects of GA against UV-B-induced oxidative damage, and additionally, delineated the molecular mechanisms involved in the UV-B-mediated inflammatory and apoptotic response. In the HaCaT cells, GA inhibited the UV-B-mediated increase in intracellular reactive oxygen species (ROS) and down-regulated the release of pro-inflammatory cytokines interleukin (IL)-1α, -1β and -6, tumor necrosis factor (TNF)-α and prostaglandin E2 (PGE2). GA inhibited UV-B-mediated activation of p38 and JNK MAP kinases, COX-2 expression and nuclear translocation of NF-κB. Furthermore, GA inhibited UV-B-mediated apoptosis by attenuating translocation of Bax from the cytosol to mitochondria, thus preserving mitochondrial integrity. GA-treated HaCaT cells also exhibited elevated antiapoptotic Bcl-2 protein, concomitant with reduced caspase-3 cleavage and decreased PARP-1 protein. In BALB/c mice, topical application of GA on dorsal skin exposed to UV-B irradiation protected against epidermal hyperplasia, lymphocyte infiltration and expression of several inflammatory proteins, p38, JNK, COX-2, NF-κB and ICAM-1. Based on the above findings, we conclude that GA protects against UV-B-mediated photodamage by inhibiting the signalling cascades triggered by oxidative stress, including MAPK/NF-κB activation, as well as apoptosis. Thus, GA has strong potential to be used as a therapeutic/cosmeceutical agent against photodamage.
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Affiliation(s)
- Quadri Afnan
- PK-PD and Toxicology Division, CSIR-Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, India.,Department of Biochemistry, Panjab University, Chandigarh, India
| | - Peerzada J Kaiser
- PK-PD and Toxicology Division, CSIR-Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, India
| | - Rather A Rafiq
- PK-PD and Toxicology Division, CSIR-Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, India
| | - Lone A Nazir
- PK-PD and Toxicology Division, CSIR-Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Shashi Bhushan
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.,Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, India
| | - Subhash C Bhardwaj
- Department of Pathology, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Rajat Sandhir
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - Sheikh A Tasduq
- PK-PD and Toxicology Division, CSIR-Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
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34
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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: 5.5] [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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35
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Huang KM, Liang S, Yeung S, Oiyemhonlan E, Cleveland KH, Parsa C, Orlando R, Meyskens FL, Andresen BT, Huang Y. Topically Applied Carvedilol Attenuates Solar Ultraviolet Radiation Induced Skin Carcinogenesis. Cancer Prev Res (Phila) 2017; 10:598-606. [PMID: 28912118 DOI: 10.1158/1940-6207.capr-17-0132] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/20/2017] [Accepted: 08/08/2017] [Indexed: 11/16/2022]
Abstract
In previous studies, the β-blocker carvedilol inhibited EGF-induced epidermal cell transformation and chemical carcinogen-induced mouse skin hyperplasia. As exposure to ultraviolet (UV) radiation leads to skin cancer, the present study examined whether carvedilol can prevent UV-induced carcinogenesis. Carvedilol absorbs UV like a sunscreen; thus, to separate pharmacological from sunscreen effects, 4-hydroxycarbazole (4-OHC), which absorbs UV to the same degree as carvedilol, served as control. JB6 P+ cells, an established epidermal model for studying tumor promotion, were used for evaluating the effect of carvedilol on UV-induced neoplastic transformation. Both carvedilol and 4-OHC (1 μmol/L) blocked transformation induced by chronic UV (15 mJ/cm2) exposure for 8 weeks. However, EGF-mediated transformation was inhibited by only carvedilol but not by 4-OHC. Carvedilol (1 and 5 μmol/L), but not 4-OHC, attenuated UV-induced AP-1 and NF-κB luciferase reporter activity, suggesting a potential anti-inflammatory activity. In a single-dose UV (200 mJ/cm2)-induced skin inflammation mouse model, carvedilol (10 μmol/L), applied topically after UV exposure, reduced skin hyperplasia and the levels of cyclobutane pyrimidine dimers, IL1β, IL6, and COX-2 in skin. In SKH-1 mice exposed to gradually increasing levels of UV (50-150 mJ/cm2) three times a week for 25 weeks, topical administration of carvedilol (10 μmol/L) after UV exposure increased tumor latency compared with control (week 18 vs. 15), decreased incidence and multiplicity of squamous cell carcinomas, while 4-OHC had no effect. These data suggest that carvedilol has a novel chemopreventive activity and topical carvedilol following UV exposure may be repurposed for preventing skin inflammation and cancer. Cancer Prev Res; 10(10); 598-606. ©2017 AACR.
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Affiliation(s)
- Kevin M Huang
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California
| | - Sherry Liang
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California
| | - Steven Yeung
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California
| | - Etuajie Oiyemhonlan
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California
| | - Kristan H Cleveland
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California
| | - Cyrus Parsa
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California.,Department of Pathology, Beverly Hospital, Montebello, California
| | - Robert Orlando
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California.,Department of Pathology, Beverly Hospital, Montebello, California
| | - Frank L Meyskens
- Departments of Medicine, Biological Chemistry, Public Health and Epidemiology, Chao Family Comprehensive Cancer Center, University of California, Irvine, California
| | - Bradley T Andresen
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California
| | - Ying Huang
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, California.
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Chhabra G, Ndiaye MA, Garcia-Peterson LM, Ahmad N. Melanoma Chemoprevention: Current Status and Future Prospects. Photochem Photobiol 2017; 93:975-989. [PMID: 28295364 DOI: 10.1111/php.12749] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 02/02/2017] [Indexed: 12/11/2022]
Abstract
The incidence of skin cancers, both nonmelanoma and melanoma, is increasing in the United States. The ultraviolet radiation, mainly from sun, is considered the major cause for these neoplasms. While nonmelanoma skin cancers are far more numerous, melanoma remains the most challenging. This is because melanoma can become extremely aggressive and its incidence is increasing worldwide due to lack of effective early detection, as well as disease recurrence, following both surgery and chemotherapy. Therefore, in addition to better treatment options, newer means are required to prevent melanomas from developing. Chemoprevention is a reasonable cost-effective approach to prevent carcinogenesis by inhibiting the processes of tumor initiation, promotion and progression. Melanoma is a progressive disease, which makes it very suitable for chemopreventive interventions, by targeting the processes and molecular pathways involved in the progression of melanoma. This review discusses the roles of various chemopreventive agents such as NSAIDs, statins, vitamins and dietary agents in melanoma and highlights current advancements and our perspective on future of melanoma chemoprevention. Although considerable preclinical data suggest that melanoma may be prevented or delayed by a numerous chemopreventive agents, we realize there are insufficient clinical studies evaluating their efficacy and long-term safety for human use.
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Affiliation(s)
- Gagan Chhabra
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Mary Ann Ndiaye
- Department of Dermatology, University of Wisconsin, Madison, WI
| | | | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, Madison, WI.,William S. Middleton VA Medical Center, Madison, WI
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Tang SC, Liao PY, Hung SJ, Ge JS, Chen SM, Lai JC, Hsiao YP, Yang JH. Topical application of glycolic acid suppresses the UVB induced IL-6, IL-8, MCP-1 and COX-2 inflammation by modulating NF-κB signaling pathway in keratinocytes and mice skin. J Dermatol Sci 2017; 86:238-248. [PMID: 28330776 DOI: 10.1016/j.jdermsci.2017.03.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/24/2017] [Accepted: 03/08/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Glycolic acid (GA), commonly present in fruits, has been used to treat dermatological diseases. Extensive exposure to solar ultraviolet B (UVB) irradiation plays a crucial role in the induction of skin inflammation. The development of photo prevention from natural materials represents an effective strategy for skin keratinocytes. OBJECTIVE The aim of this study was to investigate the molecular mechanisms underlying the glycolic acid (GA)-induced reduction of UVB-mediated inflammatory responses. METHODS We determined the effects of different concentrations of GA on the inflammatory response of human keratinocytes HaCaT cells and C57BL/6J mice dorsal skin. After GA was topically applied, HaCaT and mice skin were exposed to UVB irradiation. RESULTS GA reduced the production of UVB-induced nuclear factor kappa B (NF-κB)-dependent inflammatory mediators [interleukin (IL)-1β, IL-6, IL-8, cyclooxygenase (COX)-2, tumor necrosis factor-α, and monocyte chemoattractant protein (MCP-1)] at both mRNA and protein levels. GA inhibited the UVB-induced promoter activity of NF-κB in HaCaT cells. GA attenuated the elevation of senescence associated with β-galactosidase activity but did not affect the wound migration ability. The topical application of GA inhibited the genes expression of IL-1β, IL-6, IL-8, COX-2, and MCP-1 in UVB-exposed mouse skin. The mice to UVB irradiation after GA was topically applied for 9 consecutive days and reported that 1-1.5% of GA exerted anti-inflammatory effects on mouse skin. CONCLUSION We clarified the molecular mechanism of GA protection against UVB-induced inflammation by modulating NF-κB signaling pathways and determined the optimal concentration of GA in mice skin exposed to UVB irradiation.
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Affiliation(s)
- Sheau-Chung Tang
- Department of Dermatology, Buddhist Tzu Chi General Hospital, Hualien 97004, Taiwan; Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Pei-Yun Liao
- Department of Dermatology, Buddhist Tzu Chi General Hospital, Hualien 97004, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien 97004, Taiwan
| | - Sung-Jen Hung
- Department of Dermatology, Buddhist Tzu Chi General Hospital, Hualien 97004, Taiwan
| | - Jheng-Siang Ge
- Department of Dermatology, Buddhist Tzu Chi General Hospital, Hualien 97004, Taiwan
| | - Shiou-Mei Chen
- Department of Dermatology, Buddhist Tzu Chi General Hospital, Hualien 97004, Taiwan
| | - Ji-Ching Lai
- Research Assistant Center, Chang Hua Show Chwan Health, Care System, Changhua 50008, Taiwan
| | - Yu-Ping Hsiao
- Institute of Medicine, School of Medicine, Chung Shan Medical University, Taichung 40244, Taiwan; Department of Dermatology, Chung Shan Medical University Hospital, Taichung 40244, Taiwan
| | - Jen-Hung Yang
- Department of Dermatology, Buddhist Tzu Chi General Hospital, Hualien 97004, Taiwan; Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan; Institute of Medicine, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan.
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Zhang Q, Feng Y, Kennedy D. Multidrug-resistant cancer cells and cancer stem cells hijack cellular systems to circumvent systemic therapies, can natural products reverse this? Cell Mol Life Sci 2017; 74:777-801. [PMID: 27622244 PMCID: PMC11107623 DOI: 10.1007/s00018-016-2362-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/06/2016] [Accepted: 09/08/2016] [Indexed: 12/15/2022]
Abstract
Chemotherapy is one of the most effective and broadly used approaches for cancer management and many modern regimes can eliminate the bulk of the cancer cells. However, recurrence and metastasis still remain a major obstacle leading to the failure of systemic cancer treatments. Therefore, to improve the long-term eradication of cancer, the cellular and molecular pathways that provide targets which play crucial roles in drug resistance should be identified and characterised. Multidrug resistance (MDR) and the existence of tumor-initiating cells, also referred to as cancer stem cells (CSCs), are two major contributors to the failure of chemotherapy. MDR describes cancer cells that become resistant to structurally and functionally unrelated anti-cancer agents. CSCs are a small population of cells within cancer cells with the capacity of self-renewal, tumor metastasis, and cell differentiation. CSCs are also believed to be associated with chemoresistance. Thus, MDR and CSCs are the greatest challenges for cancer chemotherapy. A significant effort has been made to identify agents that specifically target MDR cells and CSCs. Consequently, some agents derived from nature have been developed with a view that they may overcome MDR and/or target CSCs. In this review, natural products-targeting MDR cancer cells and CSCs are summarized and clustered by their targets in different signaling pathways.
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Affiliation(s)
- Qian Zhang
- School of Natural Sciences, Eskitis Institute for Drug Discovery, Griffith University, Nathan, 4111, Australia
| | - Yunjiang Feng
- School of Natural Sciences, Eskitis Institute for Drug Discovery, Griffith University, Nathan, 4111, Australia
| | - Derek Kennedy
- School of Natural Sciences, Eskitis Institute for Drug Discovery, Griffith University, Nathan, 4111, Australia.
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Choi JS, An HY, Park IS, Kim SK, Kim YM, Lim JY. Radioprotective Effect of Epigallocatechin-3-Gallate on Salivary Gland Dysfunction After Radioiodine Ablation in a Murine Model. Clin Exp Otorhinolaryngol 2016; 9:244-51. [PMID: 27136365 PMCID: PMC4996107 DOI: 10.21053/ceo.2015.01011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 07/27/2015] [Accepted: 08/17/2015] [Indexed: 11/22/2022] Open
Abstract
Objectives. Radioiodine (RI) therapy is known to subject cellular components of salivary glands (SG) to oxidative stress leading to SG dysfunction. However, the protective effects of antioxidants on RI-induced SG damage have not been well investigated. The authors investigated the morphometric and functional effects of epigallocatechin-3-gallate (EGCG) administered prior to RI therapy and compared this with the effects of amifostine (a well-known antioxidant) in a murine model of RI sialadenitis. Methods. Four-week-old female C57BL/6 mice (n=48) were divided into four groups; a normal control group, a RI-treated group (0.01 mCi/g mouse, orally), an EGCG and RI-treated group, and an amifostine and RI-treated group. Animals in these groups were divided into 3 subgroups and euthanized at 15, 30, and 90 days post-RI treatment. Salivary flow rates and lag times were measured, and morphologic and histologic examinations and TUNEL (terminal deoxynucleotidyl transferase biotin-dUDP nick end labeling) assays were performed. Changes in salivary 99mTc pertechnetate uptake and excretion were followed by single-photon emission computed tomography. Results. Salivary flow rates and lag times to salivation in the EGCG or amifostine groups were better than in the RI-treated group. Histologic examinations of SGs in the EGCG or amifostine group showed more mucin-rich parenchyma and less periductal fibrosis than in the RI-treated group. Fewer apoptotic cells were observed in acini, ducts, and among endothelial cells in the EGCG or amifostine group than in the RI group. In addition, patterns of 99mTc pertechnetate excretion were quite different in the EGCG or amifostine group than in the RI group. Conclusion. EGCG supplementation before RI therapy could protect from RI-induced SG damage in a manner comparable to amifostine, and thus, offers a possible means of preventing SG damage by RI.
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Affiliation(s)
- Jeong-Seok Choi
- Department of Otorhinolaryngology, Inha University School of Medicine, Incheon, Korea
| | - Hye-Young An
- Department of Otorhinolaryngology, Inha University School of Medicine, Incheon, Korea
| | - In Suh Park
- Department of Pathology, Inha University School of Medicine, Incheon, Korea
| | - Seok-Ki Kim
- Department of Nuclear Medicine, National Cancer Center, Goyang, Korea
| | - Young-Mo Kim
- Department of Otorhinolaryngology, Inha University School of Medicine, Incheon, Korea
| | - Jae-Yol Lim
- Department of Otorhinolaryngology, Inha University School of Medicine, Incheon, Korea
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Decean H, Fischer-Fodor E, Tatomir C, Perde-Schrepler M, Somfelean L, Burz C, Hodor T, Orasan R, Virag P. Vitis vinifera seeds extract for the modulation of cytosolic factors BAX-α and NF-kB involved in UVB-induced oxidative stress and apoptosis of human skin cells. ACTA ACUST UNITED AC 2016; 89:72-81. [PMID: 27004028 PMCID: PMC4777472 DOI: 10.15386/cjmed-508] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 08/06/2015] [Accepted: 09/08/2015] [Indexed: 11/23/2022]
Abstract
Background and aims The depletion of the ozone layer allows overexposure of the skin to UV radiation, which is prolonged due to the increasing life expectancy, together with inappropriate life habits contribute to the increasing incidence of cutaneous malignancies. Plant extracts with antioxidant capacities are frequently employed as a means to protect skin against ultraviolet (UV) radiations, thus preventing skin cancers. In the present study we assessed a red grape seed extract (GSE) potential capacities to reduce ultraviolet B (UVB) radiation-induced reactive oxygen species (ROS) and subsequent apoptosis in a human keratinocytes cell line (HaCaT). We identified molecules and pathways modulated by the GSE through which this may exert its photoprotective effect. Methods The GSE was standardized according to its polyphenolic content and the most important biologically active compounds, such as epigallocatechin and epicatechin, catechin hydrate, procyanidin B and gallic acid were evidenced by high-performance liquid chromatography. According to the plant extract cytotoxicity on the HaCaT cell line, two concentrations were selected for testing from the non-toxic range: GSE1 (37.5 μgEqGA/ml) and GSE2 (75 μgEqGA/ml). The level of ROS was evaluated with CM-H2DCFDA assay, while apoptosis, Bax-α and NF-kβ p65 proteins with ELISA and confirmed by western-blot. Results Both concentrations of the extract decreased the level of ROS in UVB-irradiated keratinocytes (p<0.001), whereas apoptosis and Bax-α pro-apoptotic protein were only reduced by the higher concentration (GSE2). The NF-kB p65 protein level registered increasing values in time after UVB exposure of the cells, while the tested plant extract re-established its level when its smaller concentration was used (GSE1). Conclusion These results encourage further studies on this extract in order to identify other molecules and pathways through which this extract might exert its beneficial effects and also recommend its use as a potential photoprotective agent.
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Affiliation(s)
- Hana Decean
- Department of Physiology/Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania; Emergency Military Hospital, Cluj-Napoca, Romania
| | | | - Corina Tatomir
- Prof. Dr. I. Chiricuta Oncology Institute, Cluj-Napoca, Romania
| | | | | | - Claudia Burz
- Prof. Dr. I. Chiricuta Oncology Institute, Cluj-Napoca, Romania; Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Tudor Hodor
- Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Remus Orasan
- Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania; Dermatology Clinical Hospital, Cluj-Napoca, Romania
| | - Piroska Virag
- Prof. Dr. I. Chiricuta Oncology Institute, Cluj-Napoca, Romania
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Clarke KA, Dew TP, Watson REB, Farrar MD, Osman JE, Nicolaou A, Rhodes LE, Williamson G. Green tea catechins and their metabolites in human skin before and after exposure to ultraviolet radiation. J Nutr Biochem 2016; 27:203-10. [PMID: 26454512 PMCID: PMC4694608 DOI: 10.1016/j.jnutbio.2015.09.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 12/20/2022]
Abstract
Dietary flavonoids may protect against sunburn inflammation in skin. Preliminary reports using less complete analysis suggest that certain catechins and their metabolites are found in skin biopsies and blister fluid after consumption of green tea; however, it is not known if they are affected by solar-simulated ultraviolet radiation (UVR) or whether conjugated forms, with consequently altered bioactivity, are present. The present study tested the hypothesis that UVR affects the catechin levels in the skin of healthy volunteers after consumption of green tea and how catechins in the plasma are related to their presence in skin tissue samples. In an open oral intervention study, 11 subjects consumed green tea and vitamin C supplements daily for 3months. Presupplementation and postsupplementation plasma samples, suction blister fluid and skin biopsies were collected; the latter two samples were collected both before and after UVR. A sensitive high-performance liquid chromatography/mass spectrometric assay was used to measure the intact catechin metabolites, conjugates and free forms. Seven green tea catechins and their corresponding metabolites were identified postsupplementation in skin biopsies, 20 in blister fluid and 26 in plasma, with 15 green tea catechin metabolites present in both blister fluid and plasma. The valerolactone, O-methyl-M4-O-sulfate, a gut microbiota metabolite of catechins, was significantly increased 1.6-fold by UVR in blister fluid samples. In conclusion, there were some common catechin metabolites in the plasma and blister fluid, and the concentration was always higher in plasma. The results suggest that green tea catechins and metabolites are bioavailable in skin and provide a novel link between catechin metabolites derived from the skin and gut microbiota.
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Affiliation(s)
- Kayleigh A Clarke
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom
| | - Tristan P Dew
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom
| | - Rachel E B Watson
- Photobiology Unit, Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Hospital, Manchester, United Kingdom
| | - Mark D Farrar
- Photobiology Unit, Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Hospital, Manchester, United Kingdom
| | - Joanne E Osman
- Photobiology Unit, Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Hospital, Manchester, United Kingdom
| | - Anna Nicolaou
- Manchester Pharmacy School, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, United Kingdom
| | - Lesley E Rhodes
- Photobiology Unit, Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Hospital, Manchester, United Kingdom
| | - Gary Williamson
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom.
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Thangapandiyan S, Miltonprabu S. Epigallocatechin gallate exacerbates fluoride-induced oxidative stress mediated testicular toxicity in rats through the activation of Nrf2 signaling pathway. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2015. [DOI: 10.1016/j.apjr.2015.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Farrar MD, Nicolaou A, Clarke KA, Mason S, Massey KA, Dew TP, Watson REB, Williamson G, Rhodes LE. A randomized controlled trial of green tea catechins in protection against ultraviolet radiation-induced cutaneous inflammation. Am J Clin Nutr 2015; 102:608-15. [PMID: 26178731 PMCID: PMC4548173 DOI: 10.3945/ajcn.115.107995] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 06/17/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Safe systemic protection from the health hazards of ultraviolet radiation (UVR) in sunlight is desirable. Green tea is consumed globally and is reported to have anti-inflammatory properties, which may be mediated through the impact on cyclooxygenase and lipoxygenase pathways. Recent data suggest that green tea catechins (GTCs) reduce acute UVR effects, but human trials examining their photoprotective potential are scarce. OBJECTIVE We performed a double-blind, randomized, placebo-controlled trial to examine whether GTCs protect against clinical, histologic, and biochemical indicators of UVR-induced inflammation. DESIGN Healthy adults (aged 18-65 y, phototypes I-II) were randomly allocated to 1350 mg encapsulated green tea extract (540 mg GTC) with 50 mg vitamin C or placebo twice daily for 3 mo. Impact on skin erythema, dermal leukocytic infiltration, and concentrations of proinflammatory eicosanoids was assessed after solar-simulated UVR challenge, and subject compliance was determined through assay of urinary GTC metabolite epigallocatechin glucuronide. RESULTS Volunteers were assigned to the active (n = 25) or the placebo (n = 25) group. After supplementation, median (IQR) sunburn threshold (minimal erythema dose) was 28 (20-28) and 20 (20-28) mJ/cm(2) in the active and placebo groups, respectively (nonsignificant), with no difference in AUC analysis for measured erythema index after a geometric series of 10 UVR doses. Skin immunohistochemistry showed increased neutrophil and CD3(+) T-lymphocyte numbers post-UVR in both groups (P < 0.01) with no statistically significant differences between groups after supplementation. Cyclooxygenase and lipoxygenase metabolites prostaglandin E2 (vasodilator) and 12-hydroxyeicosatetraenoicacid (chemoattractant), respectively, increased after UVR (P < 0.05), with no differences between supplementation groups. CONCLUSION Oral GTC (1080 mg/d) with vitamin C over 3 mo did not significantly reduce skin erythema, leukocyte infiltration, or eicosanoid response to UVR inflammatory challenge. This trial was registered at clinicaltrials.gov as NCT01032031.
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Affiliation(s)
- Mark D Farrar
- Centre for Dermatology, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Anna Nicolaou
- Manchester Pharmacy School, Faculty of Medical and Human Sciences, University of Manchester, Manchester, United Kingdom
| | - Kayleigh A Clarke
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom; and
| | - Sarah Mason
- Centre for Dermatology, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Karen A Massey
- Bradford School of Pharmacy, Faculty of Life Sciences, University of Bradford, Bradford, United Kingdom
| | - Tristan P Dew
- Bradford School of Pharmacy, Faculty of Life Sciences, University of Bradford, Bradford, United Kingdom
| | - Rachel E B Watson
- Centre for Dermatology, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom
| | - Gary Williamson
- School of Food Science and Nutrition, University of Leeds, Leeds, United Kingdom; and
| | - Lesley E Rhodes
- Centre for Dermatology, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, United Kingdom;
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Terazawa S, Mori S, Nakajima H, Yasuda M, Imokawa G. The UVB-Stimulated Expression of Transglutaminase 1 Is Mediated Predominantly via the NFκB Signaling Pathway: New Evidence of Its Significant Attenuation through the Specific Interruption of the p38/MSK1/NFκBp65 Ser276 Axis. PLoS One 2015; 10:e0136311. [PMID: 26305102 PMCID: PMC4549294 DOI: 10.1371/journal.pone.0136311] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/31/2015] [Indexed: 12/27/2022] Open
Abstract
The influence of ultraviolet B (UVB) radiation on transglutaminase 1 (TGase 1), a major factor that regulates skin keratinization, has not been sufficiently characterized especially at the gene or protein level. Thus, we determined whether UVB affects the expression of TGase 1 in human keratinocytes and clarified the intracellular stress signaling mechanism(s) involved. Exposure of human keratinocytes to UVB significantly up-regulated the expression of TGase 1 at the gene and protein levels. Treatment with inhibitors of p38, MEK, JNK or NFκB significantly abolished the UVB-stimulated protein expression of TGase 1. Treatment with astaxanthin immediately after UVB irradiation did not attenuate the increased phosphorylation of Ser536/Ser468NFκBp65, c-Jun, ATK-2 and CK2, and did not abrogate the increased or diminished protein levels of c-Jun/c-Fos or I-κBα, respectively. However, the same treatment with astaxanthin significantly abolished the UVB-stimulated expression of TGase 1 protein, which was accompanied by the attenuated phosphorylation of Thr565/Ser376/Ser360MSK1, Ser276NFκBp65 and Ser133CREB. The MSK1 inhibitor H89 significantly down-regulated the increased protein expression of TGase 1 in UVB-exposed human keratinocytes, which was accompanied by an abrogating effect on the increased phosphorylation of Ser276NFκBp65 and Ser133CREB but not Thr565/Ser376/Ser360MSK1. Transfection of human keratinocytes with MSK1 siRNA suppressed the UVB-stimulated protein expression of TGase 1. These findings suggest that the UVB-stimulated expression of TGase 1 is mediated predominantly via the NFκB pathway and can be attenuated through a specific interruption of the p38/MSK1/NFκBp65Ser276 axis.
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Affiliation(s)
- Shuko Terazawa
- Research Institute for Biological Functions, Chubu University, Aichi, Japan
| | - Shingo Mori
- School of Bioscience and Biotechnology, Tokyo University of Technology, Tokyo, Japan
| | - Hiroaki Nakajima
- School of Bioscience and Biotechnology, Tokyo University of Technology, Tokyo, Japan
| | - Michitaka Yasuda
- School of Bioscience and Biotechnology, Tokyo University of Technology, Tokyo, Japan
| | - Genji Imokawa
- Research Institute for Biological Functions, Chubu University, Aichi, Japan
- * E-mail:
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Wu Z, Uchi H, Morino-Koga S, Shi W, Furue M. Z-ligustilide ameliorated ultraviolet B-induced oxidative stress and inflammatory cytokine production in human keratinocytes through upregulation of Nrf2/HO-1 and suppression of NF-κB pathway. Exp Dermatol 2015; 24:703-8. [DOI: 10.1111/exd.12758] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Zhouwei Wu
- Department of Dermatology; Shanghai First People's Hospital; Shanghai Jiaotong University; Shanghai China
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Hiroshi Uchi
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Saori Morino-Koga
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Weimin Shi
- Department of Dermatology; Shanghai First People's Hospital; Shanghai Jiaotong University; Shanghai China
| | - Masutaka Furue
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
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Tagashira H, Miyamoto A, Kitamura SI, Tsubata M, Yamaguchi K, Takagaki K, Imokawa G. UVB Stimulates the Expression of Endothelin B Receptor in Human Melanocytes via a Sequential Activation of the p38/MSK1/CREB/MITF Pathway Which Can Be Interrupted by a French Maritime Pine Bark Extract through a Direct Inactivation of MSK1. PLoS One 2015; 10:e0128678. [PMID: 26030901 PMCID: PMC4452497 DOI: 10.1371/journal.pone.0128678] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 04/29/2015] [Indexed: 01/01/2023] Open
Abstract
Melanogenesis is the physiological process by which melanin is synthesized to protect the skin from UV damage. While paracrine interactions between keratinocytes and melanocytes are crucial for regulating epidermal pigmentation, the endothelin (EDN)-endothelin B-receptor (EDNRB) interaction is one of the key linkages. In this study, we found that a single exposure of normal human melanocytes (NHMs) with UVB stimulates the expression of EDNRB and its upstream transcription factor microphthalmia-associated transcription factor (MITF) at the transcriptional and translational levels. That stimulation can be abrogated by post-irradiation treatment with a French maritime pine bark extract (PBE). UVB stimulated the phosphorylation of p38 and c-jun N-terminal kinase (JNK), but not ERK, followed by the increased phosphorylation of MSK1 and CREB. The post-irradiation treatment with PBE did not affect the increased phosphorylation of p38 and JNK, but distinctly abrogated the phosphorylation of MSK1 and CREB. Post-irradiation treatment with the MSK1 inhibitor H89 significantly down-regulated the increased gene expression of MITF and EDNRB in UVB-exposed NHMs. Our findings indicate for the first time that the increased expression of MITF that leads to the up-regulation of melanocyte-specific proteins in UVB-exposed NHMs is mediated via activation of the p38/MSK1/CREB pathway but not the ERK/RSK/CREB pathway. The mode of action by PBE demonstrates that interrupting MSK1 activation is a new target for antioxidants including PBE which can serve as anti-pigmenting agents in a reactive oxygen species-depletion-independent manner.
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Affiliation(s)
- Hideki Tagashira
- Research and Development Division, Toyo Shinyaku Co., Ltd., 7–28 Yayoigaoka, Tosu, Saga, 841–0005, Japan
| | - Aki Miyamoto
- Research and Development Division, Toyo Shinyaku Co., Ltd., 7–28 Yayoigaoka, Tosu, Saga, 841–0005, Japan
| | - Sei-ichi Kitamura
- Research and Development Division, Toyo Shinyaku Co., Ltd., 7–28 Yayoigaoka, Tosu, Saga, 841–0005, Japan
| | - Masahito Tsubata
- Research and Development Division, Toyo Shinyaku Co., Ltd., 7–28 Yayoigaoka, Tosu, Saga, 841–0005, Japan
| | - Kazuya Yamaguchi
- Research and Development Division, Toyo Shinyaku Co., Ltd., 7–28 Yayoigaoka, Tosu, Saga, 841–0005, Japan
| | - Kinya Takagaki
- Research and Development Division, Toyo Shinyaku Co., Ltd., 7–28 Yayoigaoka, Tosu, Saga, 841–0005, Japan
| | - Genji Imokawa
- Research Institute for Biological Functions, Chubu University, 1200 Matsumoto, Kasugai, Aichi, 487–8501, Japan
- * E-mail:
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Divya SP, Wang X, Pratheeshkumar P, Son YO, Roy RV, Kim D, Dai J, Hitron JA, Wang L, Asha P, Shi X, Zhang Z. Blackberry extract inhibits UVB-induced oxidative damage and inflammation through MAP kinases and NF-κB signaling pathways in SKH-1 mice skin. Toxicol Appl Pharmacol 2015; 284:92-99. [PMID: 25680589 PMCID: PMC4374016 DOI: 10.1016/j.taap.2015.02.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/29/2015] [Accepted: 02/04/2015] [Indexed: 12/17/2022]
Abstract
Extensive exposure of solar ultraviolet-B (UVB) radiation to skin induces oxidative stress and inflammation that play a crucial role in the induction of skin cancer. Photochemoprevention with natural products represents a simple but very effective strategy for the management of cutaneous neoplasia. In this study, we investigated whether blackberry extract (BBE) reduces chronic inflammatory responses induced by UVB irradiation in SKH-1 hairless mice skin. Mice were exposed to UVB radiation (100 mJ/cm(2)) on alternate days for 10 weeks, and BBE (10% and 20%) was applied topically a day before UVB exposure. Our results show that BBE suppressed UVB-induced hyperplasia and reduced infiltration of inflammatory cells in the SKH-1 hairless mice skin. BBE treatment reduced glutathione (GSH) depletion, lipid peroxidation (LPO), and myeloperoxidase (MPO) in mouse skin by chronic UVB exposure. BBE significantly decreased the level of pro-inflammatory cytokines IL-6 and TNF-α in UVB-exposed skin. Likewise, UVB-induced inflammatory responses were diminished by BBE as observed by a remarkable reduction in the levels of phosphorylated MAP Kinases, Erk1/2, p38, JNK1/2 and MKK4. Furthermore, BBE also reduced inflammatory mediators such as cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE2), and inducible nitric oxide synthase (iNOS) levels in UVB-exposed skin. Treatment with BBE inhibited UVB-induced nuclear translocation of NF-κB and degradation of IκBα in mouse skin. Immunohistochemistry analysis revealed that topical application of BBE inhibited the expression of 8-oxo-7, 8-dihydro-2'-deoxyguanosine (8-oxodG), cyclobutane pyrimidine dimers (CPD), proliferating cell nuclear antigen (PCNA), and cyclin D1 in UVB-exposed skin. Collectively, these data indicate that BBE protects from UVB-induced oxidative damage and inflammation by modulating MAP kinase and NF-κB signaling pathways.
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Affiliation(s)
- Sasidharan Padmaja Divya
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Xin Wang
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Poyil Pratheeshkumar
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Young-Ok Son
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Ram Vinod Roy
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Donghern Kim
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Jin Dai
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - John Andrew Hitron
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Lei Wang
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Padmaja Asha
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Cochin, India
| | - Xianglin Shi
- Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
| | - Zhuo Zhang
- Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536, USA
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Ye T, Zhen J, Du Y, Zhou JK, Peng A, Vaziri ND, Mohan C, Xu Y, Zhou XJ. Green tea polyphenol (-)-epigallocatechin-3-gallate restores Nrf2 activity and ameliorates crescentic glomerulonephritis. PLoS One 2015; 10:e0119543. [PMID: 25785827 PMCID: PMC4364748 DOI: 10.1371/journal.pone.0119543] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 01/14/2015] [Indexed: 01/13/2023] Open
Abstract
Crescentic glomerulonephritis (GN) is the most severe form of GN and is associated with significant morbidity and mortality despite aggressive immunotherapy with steroids, cytotoxic drugs, and plasmapheresis. We examined the therapeutic efficacy of the green tea polyphenol (-)-epigallocatechin-3-gallate (EGCG, 50 mg/kg BW/day x3 weeks), a potent anti-inflammatory and anti-oxidant agent, on experimental crescentic GN induced in 129/svJ mice by administration of rabbit anti-mouse glomerular basement membrane sera. Routine histology and key molecules involved in inflammatory and redox signaling were studied. EGCG treatment significantly reduced mortality, decreased proteinuria and serum creatinine, and markedly improved renal histology when compared with vehicle-treated mice. The improvements in renal function and histology were accompanied by the restoration of Nrf2 signaling (which was impaired in vehicle-treated mice) as shown by increased nuclear translocation of Nrf2 and cytoplasmic glutamate cysteine ligase catalytic subunit, glutamate cysteine ligase modifier subunit, and glutathione peroxidase. EGCG-treated mice also showed reduction in p-Akt, p-JNK, p-ERK1/2 and p-P38 as well as restoration of PPARγ and SIRT1 levels. Lower dose of EGCG (25 mg/kg BW/day x2 weeks) treatment also significantly decreased proteinuria and serum creatinine, and markedly improved renal histology when compared with vehicle-treated mice. Thus, our data illustrate the efficacy of EGCG in reversing the progression of crescentic GN in mice by targeting multiple signaling and inflammatory pathways as well as countering oxidative stress.
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Affiliation(s)
- Ting Ye
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Junhui Zhen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Department of Pathology, Shandong University School of Medicine, Jinan, Shandong, China
| | - Yong Du
- Department of Biomedical Engineering, University of Houston, Houston, Texas, United States of America
- Division of Rheumatology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Jason K. Zhou
- Division of Rheumatology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Ai Peng
- Center for Nephrology and Clinical Metabolomics, Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Nosratola D. Vaziri
- Division of Nephrology and Hypertension, University of California Irvine, Irvine, California, United States of America
| | - Chandra Mohan
- Department of Biomedical Engineering, University of Houston, Houston, Texas, United States of America
- Division of Rheumatology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Yan Xu
- Department of Nephrology, Qingdao University Affiliated Hospital, Qingdao, Shandong, China
| | - Xin J. Zhou
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Renal Path Diagnostics, Pathologist BioMedical laboratories, Lewisville, Texas, United States of America
- Department of Pathology, Baylor University Medical Center, Dallas, Texas, United States of America
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Tea, coffee, and caffeine and early-onset basal cell carcinoma in a case-control study. Eur J Cancer Prev 2015; 23:296-302. [PMID: 24841641 DOI: 10.1097/cej.0000000000000037] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Tea and coffee are hypothesized to play a protective role in skin carcinogenesis through bioactive components, such as caffeine, yet the epidemiologic evidence is mixed. Existing data support an inverse association with basal cell carcinoma (BCC), more so than for melanoma or squamous cell carcinoma. To understand whether tea, coffee, and caffeine are related to early-onset BCC, we evaluated data from 767 non-Hispanic Whites under age 40 in a case-control study in Connecticut. BCC cases (n=377) were identified through Yale's Dermatopathology database. Controls (n=390) were randomly sampled from individuals in the same database with benign skin diagnoses and frequency matched to cases on age, sex, and biopsy site. Participants completed an in-person interview including assessment of caffeinated coffee and hot tea. We calculated multivariate odds ratios (ORs) and 95% confidence intervals (CIs) with unconditional logistic regression for regular consumption and frequency and duration measures. Combined regular consumption of caffeinated coffee plus hot tea was inversely associated with early-onset BCC (OR=0.60, 95% CI=0.38-0.96). Those in the highest category of caffeine from these sources had a 43% reduced risk of BCC compared with nonconsumers (OR=0.57, 95% CI=0.34-0.95, P-trend=0.037). Our findings suggest a modest protective effect for caffeinated coffee plus tea in relation to early-onset BCC that may, in part, be due to caffeine. This study adds to the growing body of literature suggesting potential health benefits from these beverages.
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50
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(-)-Epigallocatechin-3-gallate inhibits nasopharyngeal cancer stem cell self-renewal and migration and reverses the epithelial–mesenchymal transition via NF-κB p65 inactivation. Tumour Biol 2014; 36:2747-61. [DOI: 10.1007/s13277-014-2899-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 11/26/2014] [Indexed: 01/06/2023] Open
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