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Girardi C, Benato F, Massironi M, Vindigni V, Stuhlmann D, Massironi M. Evaluation of human skin response to solar-simulated radiation in an ex vivo model: Effects and photoprotection of L-Carnosine. Photochem Photobiol 2024; 100:733-745. [PMID: 37675862 DOI: 10.1111/php.13850] [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: 04/17/2023] [Revised: 06/28/2023] [Accepted: 08/16/2023] [Indexed: 09/08/2023]
Abstract
Sunlight, and more specifically the UV component, induces several skin damages, including sunburns, erythema and photoaging. The purpose of this work is to set up an ex vivo human skin model to assess the capacity of active principles in protecting skin from the deleterious effects of solar radiation. Ex vivo human skin biopsies were cultured in an air-liquid interface and exposed to solar-simulated radiation (SSR, 300-750 nm). L-Carnosine (0.2% and 2%) was applied topically to be tested as photoprotective compound. The effect on oxidative stress induction, photoaging and skin transcriptional profile was assessed by evaluating reactive oxygen species, advanced glycosylation end products formation and gene expression changes. In our model, SSR increases ROS production and AGE accumulation and affects the expression of genes related to oxidative stress, pigmentation, immunity, inflammation and photoaging. Among these pathways, 11 genes were selected as biomarkers to evaluate the skin solar radiation response. Results showed that L-Carnosine provides effective prevention against solar radiation damages reducing ROS, AGEs and mitigating the modulation of the selected biomarker genes. In conclusion, we report that our ex vivo skin model is a valuable system to assess the consequences of solar light exposure and the capacity of topically applied L-Carnosine to counteract them.
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Affiliation(s)
| | | | | | - Vincenzo Vindigni
- Clinic of Plastic and Reconstructive Surgery, University of Padova, Padova, Italy
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Truong VL, Bae YJ, Bang JH, Jeong WS. Combination of red ginseng and velvet antler extracts prevents skin damage by enhancing the antioxidant defense system and inhibiting MAPK/AP-1/NF-κB and caspase signaling pathways in UVB-irradiated HaCaT keratinocytes and SKH-1 hairless mice. J Ginseng Res 2024; 48:323-332. [PMID: 38707646 PMCID: PMC11068995 DOI: 10.1016/j.jgr.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/29/2023] [Accepted: 01/11/2024] [Indexed: 05/07/2024] Open
Abstract
Background Studies have reported that the combination of two or more therapeutic compounds at certain ratios has more noticeable pharmaceutical properties than single compounds and requires reduced dosage of each agent. Red ginseng and velvet antler have been extensively used in boosting immunity and physical strength and preventing diseases. Thus, this study was conducted to elucidate the skin-protective potentials of red ginseng extract (RGE) and velvet antler extract (VAE) alone or in combination on ultraviolet (UVB)-irradiated human keratinocytes and SKH-1 hairless mice. Methods HaCaT cells were preincubated with RGE/VAE alone or in combination for 2 h before UVB (30 mJ/cm2) irradiation. SKH-1 mice were orally given RGE/VAE alone or in combination for 15 days before exposure to single dose of UVB (600 mJ/cm2). Treated cells and treated skin tissues were collected and subjected to subsequent experiments. Results RGE/VAE pretreatment alone or in combination significantly prevented UVB-induced cell death, apoptosis, reactive oxygen species production, and DNA damage in keratinocytes and SKH-1 mouse skins by downregulating mitogen-activated protein kinases/activator protein 1/nuclear factor kappa B and caspase signaling pathways. These extracts also strengthened the antioxidant defense systems and skin barriers in UVB-irradiated HaCaT cells and SKH-1 mouse skins. Furthermore, RGE/VAE co-administration appeared to be more effective in preventing UVB-caused skin injury than these extracts used alone. Conclusion Overall, these findings suggest that the consumption of RGE/VAE, especially in combination, offers a protective ability against UVB-caused skin injury by preventing inflammation and apoptosis and enhancing antioxidant capacity.
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Affiliation(s)
| | | | | | - Woo-Sik Jeong
- Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
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An L, Kim D, Donahue LR, Mejooli MA, Eom CY, Nishimura N, White AC. Sexual dimorphism in melanocyte stem cell behavior reveals combinational therapeutic strategies for cutaneous repigmentation. Nat Commun 2024; 15:796. [PMID: 38280858 PMCID: PMC10821900 DOI: 10.1038/s41467-024-45034-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 01/12/2024] [Indexed: 01/29/2024] Open
Abstract
Vitiligo is an autoimmune skin disease caused by cutaneous melanocyte loss. Although phototherapy and T cell suppression therapy have been widely used to induce epidermal re-pigmentation, full pigmentation recovery is rarely achieved due to our poor understanding of the cellular and molecular mechanisms governing this process. Here, we identify unique melanocyte stem cell (McSC) epidermal migration rates between male and female mice, which is due to sexually dimorphic cutaneous inflammatory responses generated by ultra-violet B exposure. Using genetically engineered mouse models, and unbiased bulk and single-cell mRNA sequencing approaches, we determine that manipulating the inflammatory response through cyclooxygenase and its downstream prostaglandin product regulates McSC proliferation and epidermal migration in response to UVB exposure. Furthermore, we demonstrate that a combinational therapy that manipulates both macrophages and T cells (or innate and adaptive immunity) significantly promotes epidermal melanocyte re-population. With these findings, we propose a novel therapeutic strategy for repigmentation in patients with depigmentation conditions such as vitiligo.
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Affiliation(s)
- Luye An
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, 14850, USA
| | - Dahihm Kim
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, 14850, USA
| | - Leanne R Donahue
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, 14850, USA
| | | | - Chi-Yong Eom
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14850, USA
| | - Nozomi Nishimura
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14850, USA
| | - Andrew C White
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, 14850, USA.
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Omar SS, Elmulla KF, Aly RG, Elkaffas A, Ismail A. A triple combination of latanoprost, fractional CO 2 laser, and platelet-rich plasma in localized vitiligo: A clinical and histopathologic study. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12944. [PMID: 38288773 DOI: 10.1111/phpp.12944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 02/01/2024]
Abstract
BACKGROUND Several treatment modalities are available for the treatment of vitiligo due to the lack of a uniformly effective therapy. Topical latanoprost 0.005% is an effective topical treatment. Fractional CO2 laser alone or combined with platelet-rich plasma (PRP) has been proposed as effective adjunctive therapies. OBJECTIVES We aimed to compare the efficacy of topical latanoprost 0.005% (Ioprost®, Orchidia, Egypt) combined with either add-on fractional CO2 laser or fractional CO2 -PRP versus topical latanoprost monotherapy in the treatment of localized stable vitiligo. PATIENTS/METHODS The study included 60 patients randomly assigned into three equal groups. Group A patients received topical latanoprost drops only. Group B patients received topical latanoprost drops and fractional CO2 laser sessions at 2-week interval for 3 months. Group C patients received topical latanoprost drops and fractional CO2 laser sessions combined with PRP at a 2-week interval for 3 months. The mean improvement score by the physician was calculated 4 months after the start of the study. Punch skin biopsies were obtained before treatment and 4 months from the beginning of the study and stained with H&E and HMB-45 antibody for evaluation of pigmentation. RESULTS Significant clinical improvement of vitiligo lesions with significant increase of re-pigmentation were reported in the three treated groups. Latanoprost in combination with fractional CO2 and PRP was associated with more significant therapeutic outcomes than either combined latanoprost and fractional CO2 or latanoprost alone. CONCLUSION Fractional CO2 laser-PRP enhances the therapeutic efficacy of latanoprost 0.005% in the treatment of localized stable vitiligo.
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Affiliation(s)
- Salma Samir Omar
- Department of Dermatology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Khaled Fawzy Elmulla
- Department of Dermatology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Rania Gaber Aly
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | | | - Aliaa Ismail
- Department of Dermatology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Pihl C, Lerche CM, Andersen F, Bjerring P, Haedersdal M. Improving the efficacy of photodynamic therapy for actinic keratosis: A comprehensive review of pharmacological pretreatment strategies. Photodiagnosis Photodyn Ther 2023; 43:103703. [PMID: 37429460 DOI: 10.1016/j.pdpdt.2023.103703] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/19/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND Photodynamic therapy (PDT) is approved for treatment of actinic keratoses (AKs) and field-cancerisation. Pretreatment with pharmacological compounds holds potential to improve PDT efficacy, through direct interaction with PpIX formation or through an independent response, both of which may improve PDT treatment. OBJECTIVE To present the currently available clinical evidence of pharmacological pretreatments prior to PDT and to associate potential clinical benefits with the pharmacological mechanisms of action of the individual compounds. METHODS A comprehensive search on the Embase, MEDLINE, and Web of Science databases was performed. RESULTS In total, 16 studies investigated 6 pretreatment compounds: 5-fluorouracil (5-FU), diclofenac, retinoids, salicylic acid, urea, and vitamin D. Two of these, 5-FU and vitamin D, robustly increased the efficacy of PDT across multiple studies, illustrated by mean increases in clearance rates of 21.88% and 12.4%, respectively. Regarding their mechanisms, 5-FU and vitamin D both increased PpIX accumulation, while 5-FU also induced a separate anticarcinogenic response. Pretreatment with diclofenac for four weeks improved the clearance rate in one study (24.9%), administration of retinoids had a significant effect in one of two studies (16.25%), while salicylic acid and urea did not lead to improved PDT efficacy. Diclofenac and retinoids demonstrated independent cytotoxic responses, whereas salicylic acid and urea acted as penetration enhancers to increase PpIX formation. CONCLUSION 5-FU and vitamin D are well-tested, promising candidates for pharmacological pretreatment prior to PDT. Both compounds affect the haem biosynthesis, providing a target for potential pretreatment candidates. KEY WORDS Photodynamic Therapy, Actinic Keratosis,Pre-tretment,Review,enhancement.
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Affiliation(s)
- Celina Pihl
- Department of Dermatology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark & Department of Pharmacy, University of Copenhagen, Nielsine Nielsens Vej 17, Entrance 9, 2nd floor, Copenhagen 2400, Denmark.
| | - Catharina M Lerche
- Department of Dermatology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark & Department of Pharmacy, University of Copenhagen, Nielsine Nielsens Vej 17, Entrance 9, 2nd floor, Copenhagen 2400, Denmark
| | - Flemming Andersen
- Private Hospital Molholm, Brummersvej 1, Vejle 7100, Denmark; Department of Dermatology, Aalborg University Hospital, Hobrovej 18-22, Aalborg 9100, Denmark
| | - Peter Bjerring
- Department of Dermatology, Aalborg University Hospital, Hobrovej 18-22, Aalborg 9100, Denmark
| | - Merete Haedersdal
- Department of Dermatology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark & Department of Clinical Medicine, University of Copenhagen, Nielsine Nielsens Vej 17, Entrance 9, 2nd floor, Copenhagen 2400, Denmark
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An L, Kim D, Donahue L, Mejooli MA, Chi-Yong E, Nishimura N, White AC. Sexual dimorphism in melanocyte stem cell behavior reveals combinational therapeutic strategies for cutaneous repigmentation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.22.541644. [PMID: 37293072 PMCID: PMC10245926 DOI: 10.1101/2023.05.22.541644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Vitiligo is an autoimmune skin disease caused by cutaneous melanocyte loss. Although phototherapy and T cell suppression therapy have been widely used to induce epidermal repigmentation, full pigmentation recovery is rarely achieved due to our poor understanding of the cellular and molecular mechanisms governing this process. Here, we identify unique melanocyte stem cell (McSC) epidermal migration rates between male and female mice, which is due to sexually dimorphic cutaneous inflammatory responses generated by ultra-violet B exposure. Using genetically engineered mouse models, and unbiased bulk and single-cell mRNA sequencing approaches, we determine that manipulating the inflammatory response through cyclooxygenase and its downstream prostaglandin product regulates McSC proliferation and epidermal migration in response to UVB exposure. Furthermore, we demonstrate that a combinational therapy that manipulates both macrophages and T cells (or innate and adaptive immunity) significantly promotes epidermal melanocyte re-population. With these findings, we propose a novel therapeutic strategy for repigmentation in patients with depigmentation conditions such as vitiligo.
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Affiliation(s)
- Luye An
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA, 14850
| | - Dahihm Kim
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA, 14850
| | - Leanne Donahue
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA, 14850
| | | | - Eom Chi-Yong
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA, 14850
| | - Nozomi Nishimura
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA, 14850
| | - Andrew C White
- Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA, 14850
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Molecular basis of skin photoaging and therapeutic interventions by plant-derived natural product ingredients: A comprehensive review. Heliyon 2023; 9:e13580. [PMID: 36895391 PMCID: PMC9988502 DOI: 10.1016/j.heliyon.2023.e13580] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
Skin areas exposed to ultraviolet radiation (UV) from sunlight are more prone to photoaging than unexposed areas evidenced by several signs which include skin dryness, irregular pigmentation, lentigines, hyperpigmentation, wrinkling, and decreased elasticity. Plant-based natural product ingredients with therapeutic potential against skin photoaging are gaining more attention. This article aims the reviewing the research work done in exploring the cellular and molecular mechanisms involved in UV-induced skin photoaging, followed by summarizing the mechanistic insights involved in its therapeutics by natural product-based ingredients. In the mechanistic section of the convoluted procedure of photoaging, we described the effect of UV radiation (UVR) on different cellular macromolecules (direct damage) and subsequently, the deleterious consequences of UVR-generated reactive oxygen species (indirect damage) and signaling pathways activated or inhibited by UV induced ROS generation in various cellular pathologies of skin photoaging like inflammation, extracellular matrix degradation, apoptosis, mitochondrial dysfunction, and immune suppression. We also discussed the effect of UV radiation on the adipose tissue, and transient receptor potential cation channel V of photoaging skin. In the past few decades, mechanistic studies performed in this area have deciphered various therapeutic targets, opening avenues for different available therapeutic options against this pathological condition. So the remaining portion of the review deals with various natural product-based therapeutic agents available against skin photodamage.
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Purification of PaTx-II from the Venom of the Australian King Brown Snake and Characterization of Its Antimicrobial and Wound Healing Activities. Int J Mol Sci 2023; 24:ijms24054359. [PMID: 36901790 PMCID: PMC10002107 DOI: 10.3390/ijms24054359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/26/2023] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
Infections caused by multi-drug-resistant (MDR) bacteria are a global threat to human health. As venoms are the source of biochemically diverse bioactive proteins and peptides, we investigated the antimicrobial activity and murine skin infection model-based wound healing efficacy of a 13 kDa protein. The active component PaTx-II was isolated from the venom of Pseudechis australis (Australian King Brown or Mulga Snake). PaTx-II inhibited the growth of Gram-positive bacteria in vitro, with moderate potency (MICs of 25 µM) observed against S. aureus, E. aerogenes, and P. vulgaris. The antibiotic activity of PaTx-II was associated with the disruption of membrane integrity, pore formation, and lysis of bacterial cells, as evidenced by scanning and transmission microscopy. However, these effects were not observed with mammalian cells, and PaTx-II exhibited minimal cytotoxicity (CC50 > 1000 µM) toward skin/lung cells. Antimicrobial efficacy was then determined using a murine model of S. aureus skin infection. Topical application of PaTx-II (0.5 mg/kg) cleared S. aureus with concomitant increased vascularization and re-epithelialization, promoting wound healing. As small proteins and peptides can possess immunomodulatory effects to enhance microbial clearance, cytokines and collagen from the wound tissue samples were analyzed by immunoblots and immunoassays. The amounts of type I collagen in PaTx-II-treated sites were elevated compared to the vehicle controls, suggesting a potential role for collagen in facilitating the maturation of the dermal matrix during wound healing. Levels of the proinflammatory cytokines interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α), cyclooxygenase-2 (COX-2) and interleukin-10 (IL-10), factors known to promote neovascularization, were substantially reduced by PaTx-II treatment. Further studies that characterize the contributions towards efficacy imparted by in vitro antimicrobial and immunomodulatory activity with PaTx-II are warranted.
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Mechanism of Action of a Chinese Herbal Compound Containing Quercetin, Luteolin, and Kaempferol in the Treatment of Vitiligo Based on Network Pharmacology and Experimental Verification. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:7197533. [PMID: 36569347 PMCID: PMC9788887 DOI: 10.1155/2022/7197533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
Objective This study aimed to explore the mechanisms of Baishi tablets (BSTs) in the treatment of vitiligo through network pharmacology-based identification and experimental validation. Methods In brief, the compounds and related targets of BST were extracted from the TCMSP database, and disease information was obtained from the OMIM, GeneCards, PharmGkb, TTD, and DrugBank databases. A Venn diagram was generated to visualize the common targets of BST and vitiligo. GO and KEGG analyses were performed to explore the potential biological processes and signaling pathways. The PPI network and core gene subnetwork were constructed using STRING and Cytoscape software. In addition, the measurement of apoptosis in PIG1 cells and intracellular reactive oxygen species were measured using quercetin (QU), luteolin (LU), and kaempferol (KA) to protect melanocytes from oxidative stress. Results A total of 55 compounds with 236 targets and 1205 vitiligo-related genes were obtained from the TCMSP database. GO and KEGG analyses were performed to explore the potential biological processes and signaling pathways, revealing that BST may cure vitiligo by influencing the biological processes of cellular oxidative stress and related signaling pathways. A critical subnetwork was obtained with 13 core genes by analyzing the PPI network, which includes HMOX1, CXCL8, CCL2, IL6, MAPK8, CASP3, PTGS2, AKT1, IL1B, MYC, TP53, IFNG, and IL2. Furthermore, a molecular docking analysis was conducted to simulate the combination of compounds and gene proteins, reflecting that QU, LU, and KA can strongly bind the core genes. Through a series of experimental validations, we found that QU, LU, and KA could attenuate H2O2-induced apoptosis in melanocytes. Further evidence revealed that QU, LU, and KA could enhance the scavenging of intracellular reactive oxygen species (ROS). Conclusion Based on the results of network pharmacology analysis and experimental verification, QA, LU, and KA can be utilized to protect PIG1 cells by inhibiting oxidative stress and reducing the intracellular level of ROS. This may explain the underlying mechanism of BST therapy and provide a novel strategy for the treatment of vitiligo.
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Zaitseva OO, Sergushkina MI, Khudyakov AN, Polezhaeva TV, Solomina ON. Seaweed sulfated polysaccharides and their medicinal properties. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Protective Effects of Orange Sweet Pepper Juices Prepared by High-Speed Blender and Low-Speed Masticating Juicer against UVB-induced Skin Damage in SKH-1 Hairless Mice. Molecules 2022; 27:molecules27196394. [PMID: 36234931 PMCID: PMC9572457 DOI: 10.3390/molecules27196394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/21/2022] [Accepted: 09/25/2022] [Indexed: 11/17/2022] Open
Abstract
Sweet pepper fruits (Capsicum annuum L.) contain various nutrients and phytochemicals that enhance human health and prevent the pathogenesis of certain diseases. Here, we report that oral administration of orange sweet pepper juices prepared by a high-speed blender and low-speed masticating juicer reduces UVB-induced skin damage in SKH-1 hairless mice. Sweet pepper juices reduced UVB-induced skin photoaging by the regulation of genes involved in dermal matrix production and maintenance such as collagen type I α 1 and matrix metalloproteinase-2, 3, 9. Administration of sweet pepper juices also restored total collagen levels in UVB-exposed mice. In addition, sweet pepper juices downregulated the expression of pro-inflammatory proteins such as cyclooxygenase-2, interleukin (IL)-1β, IL-17, and IL-23, which was likely via inhibiting the NF-κB pathway. Moreover, primary antioxidant enzymes in the skin were enhanced by oral supplementation of sweet pepper juices, as evidenced by increased expression of catalase, glutathione peroxidase, and superoxide dismutase-2. Immunohistochemical staining showed that sweet pepper juices reduced UVB-induced DNA damage by preventing 8-OHdG formation. These results suggest that sweet pepper juices may offer a protective effect against photoaging by inhibiting the breakdown of dermal matrix, inflammatory response, and DNA damage as well as enhancing antioxidant defense, which leads to an overall reduction in skin damage.
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Photo-Protective and Anti-Inflammatory Effects of Antidesma thwaitesianum Müll. Arg. Fruit Extract against UVB-Induced Keratinocyte Cell Damage. Molecules 2022; 27:molecules27155034. [PMID: 35956984 PMCID: PMC9370488 DOI: 10.3390/molecules27155034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/17/2022] Open
Abstract
The main cause of most skin cancers is damage from UVB from sunlight, which penetrate the skin surface and induce inflammation. For this reason, this study aims to identify natural products with photo-protection properties and their mode of action by using the UVB-irradiated HaCaT keratinocyte model. Antidesma thwaitesianum fruit extracts at 25, 50, and 100 µg/mL recovered cell viability following UVB exposure in a dose-dependent manner. Cell survival was associated with the reduction in intracellular ROS and NO. In addition, we showed that the pre-treatment with the fruit extract lowered the phosphorylation level of two MAPK-signaling pathways: p38 MAPKs and JNKs. The resulting lower MAPK activation decreased their downstream pro-inflammatory cascade through COX-2 expression and subsequently reduced the PGE2 proinflammatory mediator level. The photoprotective effects of the fruit extract were correlated with the presence of polyphenolic compounds, including cyanidin, ferulic acid, caffeic acid, vanillic acid, and protocatechuic acid, which have been previously described as antioxidant and anti-inflammation. Together, we demonstrated that the pre-treatment with the fruit extract had photo-protection by inhibiting oxidative stress and subsequently lowered stress-induced MAPK responses. Therefore, this fresh fruit is worthy of investigation to be utilized as a skincare ingredient for preventing UVB-induced skin damage.
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Camponogara C, Oliveira SM. Are TRPA1 and TRPV1 channel-mediated signalling cascades involved in UVB radiation-induced sunburn? ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 92:103836. [PMID: 35248760 DOI: 10.1016/j.etap.2022.103836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/09/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Burn injuries are underappreciated injuries associated with substantial morbidity and mortality. Overexposure to ultraviolet (UV) radiation has dramatic clinical effects in humans and is a significant public health concern. Although the mechanisms underlying UVB exposure are not fully understood, many studies have made substantial progress in the pathophysiology of sunburn in terms of its molecular aspects in the last few years. It is well established that the transient receptor potential ankyrin 1 (TRPA1), and vanilloid 1 (TRPV1) channels modulate the inflammatory, oxidative, and proliferative processes underlying UVB radiation exposure. However, it is still unknown which mechanisms underlying TRPV1/A1 channel activation are elicited in sunburn induced by UVB radiation. Therefore, in this review, we give an overview of the TRPV1/A1 channel-mediated signalling cascades that may be involved in the pathophysiology of sunburn induced by UVB radiation. These data will undoubtedly help to explain the various features of sunburn and contribute to the development of novel therapeutic approaches to better treat it.
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Affiliation(s)
- Camila Camponogara
- Graduated Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Graduated Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil; Department of Biochemistry and Molecular Biology, Centre of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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Xeroderma Pigmentosum C: A Valuable Tool to Decipher the Signaling Pathways in Skin Cancers. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6689403. [PMID: 34630850 PMCID: PMC8495593 DOI: 10.1155/2021/6689403] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 03/24/2021] [Accepted: 04/19/2021] [Indexed: 12/13/2022]
Abstract
Xeroderma pigmentosum (XP) is a rare autosomal genodermatosis that manifests clinically with pronounced sensitivity to ultraviolet (UV) radiation and the high probability of the occurrence of different skin cancer types in XP patients. XP is mainly caused by mutations in XP-genes that are involved in the nucleotide excision repair (NER) pathway that functions in the removal of bulky DNA adducts. Besides, the aggregation of DNA lesions is a life-threatening event that might be a key for developing various mutations facilitating cancer appearance. One of the key players of NER is XPC that senses helical distortions found in damaged DNA. The majority of XPC gene mutations are nonsense, and some are missense leading either to the loss of XPC protein or to the expression of a truncated nonfunctional version. Given that no cure is yet available, XPC patients should be completely protected and isolated from all types of UV radiations (UVR). Although it is still poorly understood, the characterization of the proteomic signature of an XPC mutant is essential to identify mediators that could be targeted to prevent cancer development in XPC patients. Unraveling this proteomic signature is fundamental to decipher the signaling pathways affected by the loss of XPC expression following exposure to UVB radiation. In this review, we will focus on the signaling pathways disrupted in skin cancer, pathways modulating NER's function, including XPC, to disclose signaling pathways associated with XPC loss and skin cancer occurrence.
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Thet Z, Lam AK, Ranganathan D, Aung SY, Han T, Khoo TK. Reducing non-melanoma skin cancer risk in renal transplant recipients. Nephrology (Carlton) 2021; 26:907-919. [PMID: 34240786 DOI: 10.1111/nep.13939] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/11/2021] [Accepted: 07/05/2021] [Indexed: 12/19/2022]
Abstract
With an increasing number of renal transplant recipients (RTRs) and improving patient survival, a higher incidence of non-melanoma skin cancer (NMSC) has been observed. NMSC in RTRs are often more numerous and biologically more aggressive than the general population, thus contributing towards an increase in morbidity and to a lesser degree, mortality. The resultant cumulative health and financial burden is a recognized concern. Proposed strategies in mitigating risks of developing NMSC and early therapeutic options thereof include tailored modification of immunosuppressants in conjunction with sun protection in all transplant patients. This review highlights the clinical and financial burden of transplant-associated skin cancers, carcinogenic mechanisms in association with immunosuppression, importance of skin cancer awareness campaign and integrated transplant skin clinic, and the potential role of chemoprotective agents. A scheme is proposed for primary and secondary prevention of NMSC based on the available evidence.
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Affiliation(s)
- Zaw Thet
- School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland, Australia.,Department of Nephrology, Central Queensland Hospital and Health Service, Rockhampton, Queensland, Australia
| | - Alfred K Lam
- School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.,Pathology Queensland, Gold Coast University Hospital, Southport, Queensland, Australia
| | - Dwarakanathan Ranganathan
- School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland, Australia.,Department of Nephrology, Metro North Hospital and Health Service, Herston, Queensland, Australia
| | - Soe Yu Aung
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.,Department of Oncology, Central Queensland Hospital and Health Service, Rockhampton, Queensland, Australia
| | - Thin Han
- Department of Nephrology, Central Queensland Hospital and Health Service, Rockhampton, Queensland, Australia.,Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Tien K Khoo
- School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland, Australia.,School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
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16
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Pangestuti R, Shin KH, Kim SK. Anti-Photoaging and Potential Skin Health Benefits of Seaweeds. Mar Drugs 2021; 19:172. [PMID: 33809936 PMCID: PMC8004118 DOI: 10.3390/md19030172] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 12/17/2022] Open
Abstract
The skin health benefits of seaweeds have been known since time immemorial. They are known as potential renewable sources of bioactive metabolites that have unique structural and functional features compared to their terrestrial counterparts. In addition, to the consciousness of green, eco-friendly, and natural skincare and cosmetics products, their extracts and bioactive compounds such as fucoidan, laminarin, carrageenan, fucoxanthin, and mycosporine like amino acids (MAAs) have proven useful in the skincare and cosmetic industries. These bioactive compounds have shown potential anti-photoaging properties. Furthermore, some of these bioactive compounds have been clinically tested and currently available in the market. In this contribution, the recent studies on anti-photoaging properties of extracts and bioactive compounds derived from seaweeds were described and discussed.
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Affiliation(s)
- Ratih Pangestuti
- Director of Research and Development Division for Marine Bio Industry, Indonesian Institute of Sciences (LIPI), West Nusa Tenggara 83352, Indonesia;
| | - Kyung-Hoon Shin
- Department. of Marine Science and Convergence Engineering, College of Science and Technology, Hanyang University, Gyeonggi-do 11558, Korea;
| | - Se-Kwon Kim
- Department. of Marine Science and Convergence Engineering, College of Science and Technology, Hanyang University, Gyeonggi-do 11558, Korea;
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17
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Petracca B, Rothen-Rutishauser B, Valacchi G, Eeman M. Bench approaches to study the detrimental cutaneous impact of tropospheric ozone. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2021; 31:137-148. [PMID: 33127990 DOI: 10.1038/s41370-020-00275-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 08/10/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Being exposed to ground-level ozone (O3), as it is often the case in polluted cities, is known to have a detrimental impact on skin. O3 induces antioxidant depletion and lipid peroxidation in the upper skin layers and this effect has repercussions on deeper cellular layers, triggering a cascade of cellular stress and inflammatory responses. Repetitive exposure to high levels of O3 may lead to chronic damages of the cutaneous tissue, cause premature skin aging and aggravate skin diseases such as contact dermatitis and urticaria. This review paper debates about the most relevant experimental approaches that must be considered to gather deeper insights about the complex biological processes that are activated when the skin is exposed to O3. Having a better understanding of O3 effects on skin barrier properties and stress responses could help the whole dermato-cosmetic industry to design innovative protective solutions and develop specific cosmetic regime to protect the skin of every citizen, especially those living in areas where exposure to high levels of O3 is of concern to human health.
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Affiliation(s)
- Benedetta Petracca
- Dow Silicones Belgium SRL, Seneffe, Belgium
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | | | - Giuseppe Valacchi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
- Department of Animal Sciences, Kannapolis Research Campus, North Carolina State University, Raleigh, NC, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul, Korea
| | - Marc Eeman
- Dow Silicones Belgium SRL, Seneffe, Belgium.
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18
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Truong VL, Keum YS, Jeong WS. Red ginseng oil promotes hair growth and protects skin against UVC radiation. J Ginseng Res 2021; 45:498-509. [PMID: 34295210 PMCID: PMC8282496 DOI: 10.1016/j.jgr.2020.12.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/29/2020] [Accepted: 12/31/2020] [Indexed: 11/22/2022] Open
Abstract
Background A wide range of environmental factors, such as diseases, nutritional deficiencies, ageing, hormonal imbalances, stress, and ultraviolet (UV) radiation, may affect the structure and function of the skin that covers the entire surface of the human body. In this study, we investigated roles of red ginseng oil (RGO) in enhancing skin functions, including hair growth and skin protection, using mouse models. Methods For hair growth experiment, shaved dorsal skins of C57BL/6 mice were topically applied with vehicle, RGO, RGO's major compounds, or minoxidil for consecutive 21 days and skin tissues were examined the hair growth promoting capacity. For skin protection experiment, SKH-1 hairless mice were topically applied with vehicle or RGO twice a day for three days prior to exposure to UVC radiation at 20 kJ/cm2. Skin tissues were collected to evaluate skin protective effects of RGO. Results Topical application of RGO to C57BL/6 mice effectively promoted hair regeneration by inducing early telogen-to-anagen transition and significantly increasing the density and bulb diameter of hair follicles. Major compounds, including linoleic acids and β-sitosterol, contributed to RGO-promoted hair growth. Treatment with RGO as well as its major components upregulated expression of hair growth–related proteins. Furthermore, in SKH-1 hairless mice, RGO had a protective effect against UVC-induced skin damage by inhibiting inflammation and apoptosis, as well as inducing cytoprotective systems. Conclusion These data suggest that RGO may be a potent agent for improving skin health and thereby preventing and/or treating hair loss and protecting skin against UV radiation.
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Affiliation(s)
- Van-Long Truong
- Department of Food and Life Sciences, College of BNIT, Inje University, Gimhae, Republic of Korea.,Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Young-Sam Keum
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University, Goyang, Republic of Korea
| | - Woo-Sik Jeong
- Department of Food and Life Sciences, College of BNIT, Inje University, Gimhae, Republic of Korea.,Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
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19
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Distinct p63 and p73 Protein Interactions Predict Specific Functions in mRNA Splicing and Polyploidy Control in Epithelia. Cells 2020; 10:cells10010025. [PMID: 33375680 PMCID: PMC7824480 DOI: 10.3390/cells10010025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 12/14/2022] Open
Abstract
Epithelial organs are the first barrier against microorganisms and genotoxic stress, in which the p53 family members p63 and p73 have both overlapping and distinct functions. Intriguingly, p73 displays a very specific localization to basal epithelial cells in human tissues, while p63 is expressed in both basal and differentiated cells. Here, we analyse systematically the literature describing p63 and p73 protein-protein interactions to reveal distinct functions underlying the aforementioned distribution. We have found that p73 and p63 cooperate in the genome stability surveillance in proliferating cells; p73 specific interactors contribute to the transcriptional repression, anaphase promoting complex and spindle assembly checkpoint, whereas p63 specific interactors play roles in the regulation of mRNA processing and splicing in both proliferating and differentiated cells. Our analysis reveals the diversification of the RNA and DNA specific functions within the p53 family.
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20
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So BR, Yeo HJ, Lee JJ, Jung YH, Jung SK. Cellulose nanocrystal preparation from Gelidium amansii and analysis of its anti-inflammatory effect on the skin in vitro and in vivo. Carbohydr Polym 2020; 254:117315. [PMID: 33357878 DOI: 10.1016/j.carbpol.2020.117315] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023]
Abstract
Treated Gelidium amansii cellulose nanocrystal (TGa CNC) was prepared from treated Gelidium amansii (TGa) and evaluated for its anti-inflammatory effect on human keratinocytes and mice skin. Using three independent cell lines, TGa CNC showed no cytotoxicity in HaCaT, Beas-2B, and Raw 264.7 cells. A non-toxic dose of TGa CNC suppressed ultraviolet (UV) B-induced AP (activated protein)-1, and subsequent cyclooxygenase (COX)-2 gene and protein expression in HaCaT cells. TGa CNC suppressed translocation of c-Jun from the cytosol to the nucleus responds to UVB irradiation. Additionally, TGa CNC suppressed UVB-induced extracellular signal-regulated kinases (ERKs)1/2/MEK/2/B-Raf, c-Jun N-terminal kinase (JNK)1/2/MKK4/7, Akt, and epidermal growth factor receptor (EGFR) phosphorylation in HaCaT cells. Dorsal treatment of TGa CNC significantly suppressed acute UVB-induced increase in epidermal thickness and COX-2 expression in mice skin. Overall, these results indicate that TGa CNC exerts potent anti-inflammatory activity through the inhibition of abnormal COX-2 expression and mitogen-activated protein kinases (MAPK)s signaling pathways.
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Affiliation(s)
- Bo Ram So
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hyeon Jin Yeo
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jeong Jae Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; Institute of Agricultural Science & Technology, Kyungpook National University, Daegu 41566, Republic of Korea.
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21
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Jaisin Y, Ratanachamnong P, Wongsawatkul O, Watthammawut A, Malaniyom K, Natewong S. Antioxidant and anti-inflammatory effects of piperine on UV-B-irradiated human HaCaT keratinocyte cells. Life Sci 2020; 263:118607. [PMID: 33091445 DOI: 10.1016/j.lfs.2020.118607] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/02/2020] [Accepted: 10/12/2020] [Indexed: 12/13/2022]
Abstract
The increase in intracellular reactive oxygen and nitrogen species plays a key role in ultraviolet B (UV-B)-induced inflammatory responses in the human skin. Piperine exhibits many pharmacological benefits. In the present study, the photoprotective effects and the possible underlying mechanisms of the anti-inflammatory effects of piperine on UV-B-irradiated keratinocytes were investigated. Piperine exerted strong, direct scavenging effects on DPPH radicals and exhibited free radical scavenging capabilities as demonstrated by the DCFH-DA and Griess assays. Consistent with these results, 10, 20, and 40 μM piperine pretreatments attenuated UV-B irradiation-induced keratinocyte cytotoxicity as reported by the resazurin assay. The highest concentration of piperine inhibited UV-B irradiation-induced cell apoptosis, as revealed by Hoechst 33342 staining. Moreover, we demonstrated the anti-inflammatory effects of piperine using western blot analysis, real-time PCR, and ELISA. Pretreatment with piperine suppressed the activation of phosphorylated p38, JNK, and AP-1 as well as the levels of COX-2/PGE2 and iNOS synthesis, while UV-B-irradiated cells triggered the induction of these signaling molecules. These results indicated that the inhibition of these inflammatory signaling pathways might play a key role in the regulation of the anti-inflammatory effects of piperine. In addition, piperine showed stronger anti-inflammatory effects than celecoxib which served as a positive control at the same concentration. All these results suggested that the anti-inflammatory properties of piperine protected keratinocytes from UV-B-induced damage, which might be due to its antioxidant properties. Therefore, piperine may be an effective therapeutic candidate compound for the treatment of UV irradiation-induced skin inflammation.
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Affiliation(s)
- Yamaratee Jaisin
- Department of Pharmacology, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand.
| | | | - Orapin Wongsawatkul
- Department of Pharmacology, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Atthaboon Watthammawut
- Department of Anatomy, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Kittiya Malaniyom
- Department of Pharmacology, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Sutthibhon Natewong
- Department of Pharmacology, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
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22
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Molecular Pathways Linking Oxylipins to Nociception in Rats. THE JOURNAL OF PAIN 2020; 22:275-299. [PMID: 33031942 DOI: 10.1016/j.jpain.2020.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/31/2020] [Accepted: 09/24/2020] [Indexed: 12/19/2022]
Abstract
Oxylipins are lipid peroxidation products that participate in nociceptive, inflammatory, and vascular responses to injury. Effects of oxylipins depend on tissue-specific differences in accumulation of precursor polyunsaturated fatty acids and the expression of specific enzymes to transform the precursors. The study of oxylipins in nociception has presented technical challenges leading to critical knowledge gaps in the way these molecules operate in nociception. We applied a systems-based approach to characterize oxylipin precursor fatty acids, and expression of genes coding for proteins involved in biosynthesis, transport, signaling and inactivation of pro- and antinociceptive oxylipins in pain circuit tissues. We further linked these pathways to nociception by demonstrating intraplantar carrageenan injection induced gene expression changes in oxylipin biosynthetic pathways. We determined functional-biochemical relevance of the proposed pathways in rat hind paw and dorsal spinal cord by measuring basal and stimulated levels of oxylipins throughout the time-course of carrageenan-induced inflammation. Finally, when oxylipins were administered by intradermal injection we observed modulation of nociceptive thermal hypersensitivity, providing a functional-behavioral link between oxylipins, their molecular biosynthetic pathways, and involvement in pain and nociception. Together, these findings advance our understanding of molecular lipidomic systems linking oxylipins and their precursors to nociceptive and inflammatory signaling pathways in rats. PERSPECTIVE: We applied a systems approach to characterize molecular pathways linking precursor lipids and oxylipins to nociceptive signaling. This systematic, quantitative evaluation of the molecular pathways linking oxylipins to nociception provides a framework for future basic and clinical research investigating the role of oxylipins in pain.
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23
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Parashar P, Pal S, Dwivedi M, Saraf SA. Augmented Therapeutic Efficacy of Naringenin Through Microemulsion-Loaded Sericin Gel Against UVB-Induced Photoaging. AAPS PharmSciTech 2020; 21:215. [PMID: 32743708 DOI: 10.1208/s12249-020-01766-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/13/2020] [Indexed: 01/23/2023] Open
Abstract
Naringenin (NAR) is a flavonoid found in citrus fruits such as grapes and oranges. Recently, NAR has demonstrated its potential in inhibition of photoaging. The aim of the present study was to investigate the efficacy of sericin (SR) gel loaded with NAR microemulsion (ME) to inhibit UVB-induced photoaging and prevention of epidermoid carcinoma in animal model. NAR -ME was prepared and optimized through Box-Behnken design. The optimized ME was loaded into sericin (SR) gel. The formulations were subjected to various in vitro, in vivo and cytotoxicity studies over A431 cell lines. The optimized ME revealed a globule size of 249.05 ± 3.78 nm, 6.7 ± 0.5 pH and 73.1 ± 2.11% release over a period of 24 h respectively. Cytotoxicity studies revealed a depression in IC50 value in NAR -ME (65.11 ± 1.54 μg/ml) when compared with NAR (118.1 ± 2.09 μg/ml). The NAR-ME-SR gel displayed enhanced therapeutic potential when compared with plain NAR, in terms of augmented antiproliferative activity. Graphical abstract.
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24
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Photoaging Protective Effects of Ranunculus bulumei Methanol Extract. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:1761785. [PMID: 32328122 PMCID: PMC7157803 DOI: 10.1155/2020/1761785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/04/2020] [Accepted: 03/11/2020] [Indexed: 12/01/2022]
Abstract
Ultraviolet B (UVB) radiation is the main cause of photoaging processes including cellular senescence, skin drying, collagen degradation, melanogenesis, and inflammation. These responses occur because UVB induces a change in expression of aging-related genes through regulation of signal pathways such as that of mitogen-activated protein kinases- (MAPKs-) activator protein 1 (AP-1). Ranunculus bulumei, which is used as an herb in Indonesia, belongs to the Ranunculaceae family, which has been reported to perform various physiological effects including antioxidant and anti-inflammation. However, data on the pharmaceutical and cosmeceutical utility of Ranunculus bulumei have not been reported. Therefore, we evaluated the antiaging efficacy of RB-ME, a methanol extract of Ranunculus bulumei. Rb-ME attenuated MMP9 and COX-2 gene expression but enhanced SIRT1 and type-1 collagen in UVB-irradiated HaCaT cells. Rb-ME regulated these gene expressions through inhibition of p38 phosphorylation and inactivation of AP-1. In addition, mRNA expression of HAS-2 and -3, which are involved in skin hydration, was elevated in Rb-ME-treated HaCaT cells. Rb-ME also inhibited melanogenesis by suppression of tyrosinase, MITF, and TYRP-1 mRNA in B16F10 cells under α-MSH treatment. Taken together, these results indicate that Rb-ME has a protective effect on some UVB-induced skin photoaging events such as inflammation, collagen degradation, cellular senescence, skin drying, and melanin production through inhibition of the p38-AP-1 signal cascade, indicating that Rb-ME can be used as an active ingredient for antiaging cosmetics.
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25
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Park YK, Yadav AK, Roshanzadeh A, Ryoo YW, Kim BH, Cha JY, Son YK, Lee NY, Jang BC. 7‑MEGA™ 500 regulates the expression of COX‑2, MMP‑3 and type 1 procollagen in UVB‑irradiated human keratinocytes and dermal fibroblasts. Mol Med Rep 2019; 21:1346-1355. [PMID: 31894328 DOI: 10.3892/mmr.2019.10899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 10/15/2019] [Indexed: 11/06/2022] Open
Abstract
AlaskOmega® Omega 7 500, also known as Omega‑7 fatty acid or 7‑MEGA™, is a highly concentrated palmitoleic acid (C16:1). Little is known about how 7‑MEGA regulates skin inflammation and wrinkle formation in cultured skin cells. The present study aimed to investigate the effects of 7‑MEGA on the expression of cyclooxygenase‑2 (COX‑2), matrix metallopeptidase (MMP)‑1/3 and type 1 procollagen, which are markers of skin inflammation and wrinkle formation, in ultraviolet B (UVB)‑irradiated human dermal fibroblasts (HDFs) and keratinocytes (HaCaT). No toxicity was observed upon treatment of HDFs and HaCaT cells with 0.5‑2.5 µl/ml 7‑MEGA. The exposure of HaCaT cells to 10 mJ/cm2 UVB for 6 h resulted in increased protein and/or mRNA expression of COX‑2 and MMP‑3. Treatment of HaCaT cells with 2.5 µl/ml 7‑MEGA suppressed the UVB‑induced expression of COX‑2 and MMP‑3 in these cells. In addition, treatment with 2.5 µl/ml 7‑MEGA attenuated the UVB‑induced expression and phosphorylation levels of c‑Fos and c‑Jun, two components of the activator protein‑1 (AP‑1) transcription factor, in HaCaT cells. Exposure of HDFs to 60 mJ/cm2 UVB for 6 h significantly decreased the expression of type 1 procollagen protein, whereas treatment with 2.5 µl/ml 7‑MEGA partially reversed the effects of UVB on the expression of type 1 procollagen protein. These results demonstrated for the first time that 7‑MEGA regulated the expression of COX‑2, MMP‑3 and type 1 procollagen in UVB‑irradiated skin cells. The present study suggested that 7‑MEGA may serve as a novel agent against UVB‑induced skin inflammation and damage.
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Affiliation(s)
- Yu-Kyoung Park
- Department of Molecular Medicine, College of Medicine, Keimyung University, Daegu, North Gyeongsang 42601, Republic of Korea
| | - Anil Kumar Yadav
- Department of Molecular Medicine, College of Medicine, Keimyung University, Daegu, North Gyeongsang 42601, Republic of Korea
| | - Amir Roshanzadeh
- Department of Molecular Medicine, College of Medicine, Keimyung University, Daegu, North Gyeongsang 42601, Republic of Korea
| | - Young-Wook Ryoo
- Department of Dermatology, College of Medicine, Keimyung University, Daegu, North Gyeongsang 42601, Republic of Korea
| | - Bae-Hwan Kim
- Department of Public Health, Faculty of Food and Health Sciences, Keimyung University, Daegu, North Gyeongsang 42601, Republic of Korea
| | - Ji Yun Cha
- R&D Team, Food and Supplement Health Claims, Vitech, Iksan 55365, Republic of Korea
| | - Yeon Kyung Son
- R&D Team, Food and Supplement Health Claims, Vitech, Iksan 55365, Republic of Korea
| | - Na Young Lee
- R&D Team, Food and Supplement Health Claims, Vitech, Iksan 55365, Republic of Korea
| | - Byeong-Churl Jang
- Department of Molecular Medicine, College of Medicine, Keimyung University, Daegu, North Gyeongsang 42601, Republic of Korea
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26
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Sola-Carvajal A, Revêchon G, Helgadottir HT, Whisenant D, Hagblom R, Döhla J, Katajisto P, Brodin D, Fagerström-Billai F, Viceconte N, Eriksson M. Accumulation of Progerin Affects the Symmetry of Cell Division and Is Associated with Impaired Wnt Signaling and the Mislocalization of Nuclear Envelope Proteins. J Invest Dermatol 2019; 139:2272-2280.e12. [PMID: 31128203 DOI: 10.1016/j.jid.2019.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 12/17/2022]
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is the result of a defective form of the lamin A protein called progerin. While progerin is known to disrupt the properties of the nuclear lamina, the underlying mechanisms responsible for the pathophysiology of HGPS remain less clear. Previous studies in our laboratory have shown that progerin expression in murine epidermal basal cells results in impaired stratification and halted development of the skin. Stratification and differentiation of the epidermis is regulated by asymmetric stem cell division. Here, we show that expression of progerin impairs the ability of stem cells to maintain tissue homeostasis as a result of altered cell division. Quantification of basal skin cells showed an increase in symmetric cell division that correlated with progerin accumulation in HGPS mice. Investigation of the mechanisms underlying this phenomenon revealed a putative role of Wnt/β-catenin signaling. Further analysis suggested an alteration in the nuclear translocation of β-catenin involving the inner and outer nuclear membrane proteins, emerin and nesprin-2. Taken together, our results suggest a direct involvement of progerin in the transmission of Wnt signaling and normal stem cell division. These insights into the molecular mechanisms of progerin may help develop new treatment strategies for HGPS.
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Affiliation(s)
- Agustín Sola-Carvajal
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden.
| | - Gwladys Revêchon
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Hafdis T Helgadottir
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Daniel Whisenant
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Robin Hagblom
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Julia Döhla
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden; Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Pekka Katajisto
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden; Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - David Brodin
- Bioinformatics and Expression Core Facility, Karolinska Institutet, Huddinge, Sweden
| | | | - Nikenza Viceconte
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Maria Eriksson
- Department of Biosciences and Nutrition, Center for Innovative Medicine, Karolinska Institutet, Huddinge, Sweden.
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27
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Anti-Wrinkling and Anti-Melanogenic Effect of Pradosia mutisii Methanol Extract. Int J Mol Sci 2019; 20:ijms20051043. [PMID: 30818884 PMCID: PMC6429126 DOI: 10.3390/ijms20051043] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 02/21/2019] [Accepted: 02/23/2019] [Indexed: 02/06/2023] Open
Abstract
Ultraviolet (UV) exposure causes skin photoaging leading to skin wrinkling and sagging via production of reactive oxygen species (ROS). For this reason, protection from photoaging is an important feature in cosmeceutical and dermatological products. Natural product-derived biomaterials are highly desired as future possible ingredients, because these biomaterials are often safe and effective. In this study, we aimed to characterize the skin protective activity of Pradosia mutisii, traditionally used to treat sunburn and erythema. We determined the free radical scavenging, anti-melanogenic, and moisturizing effects of a methanol extract of Pradosia mutisii (Pm-ME) in keratinocytes (HaCaT cells), melanocytes (B16F10 cells), and fibroblasts (human dermal fibroblasts (HDFs)) at non-cytotoxic concentrations. Pradosia mutisii methanol extract contains coumaric acid as a major component, and the extract exhibited protective activity against UVB- and H2O2-induced cytotoxicity. This extract also suppressed the expression of metalloproteinases (MMPs) and cyclooxygenase (COX)-2 in HaCaT cells. A reduction of Sirt-1 expression under UVB- and H2O2-treated conditions was recovered in HaCaT cells by Pm-ME. This extract displayed significant free radical scavenging activity according to the 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) assay. The Pm-ME also upregulated the expression levels of hyaluronic acid synthase (HAS) and transglutaminase-1 (TGM-1) in HaCaT cells, indicating a putative moisturizing activity. Interestingly, the expression of collagen type 1 (Col1A1) gene and its promoter activity, as assessed by a reporter gene assay, were found to be increased in HDF and HEK293 cells. Similarly, Pm-ME helped recover collagen levels after UVB and H2O2 treatment in HDFs as well as decreased the synthesis and secretion of melanin from B16F10 melanoma cells, which may indicate a beneficial whitening cosmetic value. The p38 inhibitor SB203580 and the JNK inhibitor SP600125 suppressed MMP-9 and COX-2 expression in H2O2-treated HaCaT cells. Similarly, the ERK inhibitor U0126 inhibited HAS-2 in Pm-ME/H2O2-treated HaCaT cells. These findings suggested that inhibition of JNK and p38 and activation of ERK could be targeted by Pm-ME. Therefore, Pm-ME may exert anti-photoaging and anti-melanogenic properties via the regulation of mitogen-activated protein kinase, which could be beneficial in the cosmeceutical industry.
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Pangestuti R, Siahaan EA, Kim SK. Photoprotective Substances Derived from Marine Algae. Mar Drugs 2018; 16:E399. [PMID: 30360482 PMCID: PMC6265938 DOI: 10.3390/md16110399] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/18/2018] [Accepted: 10/18/2018] [Indexed: 12/16/2022] Open
Abstract
Marine algae have received great attention as natural photoprotective agents due to their unique and exclusive bioactive substances which have been acquired as an adaptation to the extreme marine environment combine with a range of physical parameters. These photoprotective substances include mycosporine-like amino acids (MAAs), sulfated polysaccharides, carotenoids, and polyphenols. Marine algal photoprotective substances exhibit a wide range of biological activities such as ultraviolet (UV) absorbing, antioxidant, matrix-metalloproteinase inhibitors, anti-aging, and immunomodulatory activities. Hence, such unique bioactive substances derived from marine algae have been regarded as having potential for use in skin care, cosmetics, and pharmaceutical products. In this context, this contribution aims at revealing bioactive substances found in marine algae, outlines their photoprotective potential, and provides an overview of developments of blue biotechnology to obtain photoprotective substances and their prospective applications.
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Affiliation(s)
- Ratih Pangestuti
- Research Center for Oceanography, Indonesian Institute of Sciences (LIPI), Jakarta 14430, Indonesia.
| | - Evi Amelia Siahaan
- Research and Development Division of Marine Bio-Industry, Indonesian Institute of Sciences (LIPI), West Nusa Tenggara 83552, Indonesia.
| | - Se-Kwon Kim
- Department of Marine Life Science, College of Ocean Science and Technology, Korea Maritime and Ocean University, Busan 606-791, Korea.
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Passarelli MN, Barry EL, Zhang D, Gangar P, Rees JR, Bresalier RS, McKeown-Eyssen G, Karagas MR, Baron JA. Risk of basal cell carcinoma in a randomized clinical trial of aspirin and folic acid for the prevention of colorectal adenomas. Br J Dermatol 2018; 179:337-344. [PMID: 29570772 DOI: 10.1111/bjd.16571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Aspirin may reduce the risk of several types of cancer. OBJECTIVES To evaluate if folic acid is associated with risk of basal cell carcinoma (BCC). METHODS BCC incidence was evaluated in a randomized, double-blind, placebo-controlled clinical trial of aspirin (81 mg daily or 325 mg daily for ~3 years) and/or folic acid (1 mg daily for ~6 years) for the prevention of colorectal adenomas among 1121 participants with a previous adenoma. BCC was confirmed by blinded review of pathology reports. RESULTS One hundred and four of 958 non-Hispanic white participants were diagnosed with BCC over a median follow-up of 13·5 years. Cumulative incidence of BCC was 12% [95% confidence interval (CI) 7-17] for placebo, 16% (95% CI 11-21) for 81 mg aspirin daily and 15% (95% CI 10-20) for 325 mg aspirin daily [hazard ratio (HR) for any aspirin 1·45 (95% CI 0·93-2·26); HR for 81 mg daily 1·57 (95% CI 0·96-2·56); HR for 325 mg daily 1·33 (95% CI 0·80-2·20)]. BCC risk was higher with aspirin use in those without previous skin cancer but lower with aspirin use in those with previous skin cancer (Pinteraction = 0·02 for 81 mg aspirin daily; Pinteraction = 0·03 for 325 mg aspirin daily). Folic acid supplementation was unrelated to BCC incidence (HR 0·85; 95% CI 0·57-1·27). CONCLUSIONS Neither aspirin nor folic acid treatment had a statistically significant effect on risk of BCC. Subgroup analysis suggested that chemopreventive effects of nonsteroidal anti-inflammatory drugs may be specific to those at high risk for BCC.
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Affiliation(s)
- M N Passarelli
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, U.S.A
| | - E L Barry
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, U.S.A
| | - D Zhang
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, U.S.A
| | - P Gangar
- Department of Pediatrics, University of Arizona, Tucson, AZ, U.S.A
| | - J R Rees
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, U.S.A
| | - R S Bresalier
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX, U.S.A
| | - G McKeown-Eyssen
- Epidemiology Division, Dalla Lana School of Public Health, University of Toronto, ON, Canada
| | - M R Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, U.S.A
| | - J A Baron
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, U.S.A.,Department of Epidemiology, University of North Carolina, Chapel Hill, NC, U.S.A
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Yum HW, Kim SH, Kang JX, Surh YJ. Amelioration of UVB-induced oxidative stress and inflammation in fat-1 transgenic mouse skin. Biochem Biophys Res Commun 2018; 502:1-8. [PMID: 29775616 DOI: 10.1016/j.bbrc.2018.05.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 05/14/2018] [Indexed: 01/01/2023]
Abstract
ω-3 polyunsaturated fatty acids (PUFAs), which are abundant in fish oils, are known to scavenge lipid peroxyl radicals and potentiate host immune defence. As UVB-induced oxidative stress and inflammation have been implicated in apoptotic cell death, this study was aimed to investigate the anti-inflammatory, anti-oxidative, and anti-apoptotic capacity of fat-1 transgenic mice capable of converting ω-6 to ω-3 PUFAs. Wild-type (WT) C57BL/6 mice and fat-1 mice were maintained on the AIN-93 diet supplemented with 10% safflower oil rich in ω-6 PUFAs for 5 weeks. The ω-3/ω-6 PUFA ratio was significantly higher in the dorsal skin of fat-1 mice than that in the WT mice. Upon single exposure to UVB (5.0 kJ/m2) radiation, fat-1 mice showed inflammatory as well as oxidative tissue damage and the expression of pro-inflammatory enzymes, cyclooxygenases-2 and inducible nitric oxide synthase in the skin to a much lesser extent than the WT mice. The protection of fat-1 mice from UVB-induced skin inflammation was associated with decreased phosphorylation of STAT3. Moreover, UVB-induced apoptosis was attenuated in fat-1 mouse skin. In comparison to WT animals, higher levels of Nrf2 and its target proteins, such as heme oxygenase-1, NAD(P)H:quinone oxidoreductase-1 and thioredoxin-1, were found in the skin of fat-1 mice.
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Affiliation(s)
- Hye-Won Yum
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul 08826, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Seong Hoon Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul 08826, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Jing X Kang
- Laboratory for Lipid Medicine and Technology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul 08826, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, South Korea.
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Kim JS, Jang H, Bae MJ, Shim S, Jang WS, Lee SJ, Park S, Lee SS. Comparison of Skin Injury Induced by β- and γ-irradiation in the Minipig Model. ACTA ACUST UNITED AC 2017. [DOI: 10.14407/jrpr.2017.42.4.189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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1,8-cineole prevents UVB-induced skin carcinogenesis by targeting the aryl hydrocarbon receptor. Oncotarget 2017; 8:105995-106008. [PMID: 29285309 PMCID: PMC5739696 DOI: 10.18632/oncotarget.22519] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 10/30/2017] [Indexed: 12/22/2022] Open
Abstract
1,8-cineole is a natural monoterpene cyclic ether present in Eucalyptus, and has been reported to exhibit anti-inflammatory and antioxidant effects. However, the preventive effect of 1,8-cineole on skin carcinogenesis and the molecular mechanism of action responsible remains unknown. In the present study, we investigated the effect of 1,8-cineole on UVB-induced skin carcinogenesis. 1,8-cineole inhibited UVB-induced cyclooxygenase-2 (COX-2) protein and mRNA expression and prostaglandin E2 (PGE2) generation in HaCaT cells. 1,8-cineole also inhibited phosphorylation of extracellular signal-regulated kinase (ERK) 1/2, and phosphorylation of its upstream kinases, c-Src and epidermal growth factor receptor (EGFR). Quantitative real-time RT-PCR (qRT-PCR) and drug affinity responsive target stability (DARTS) assay results showed that 1,8-cineole suppressed UVB-induced expression of a target gene of the aryl hydrocarbon receptor (AhR), cyp1a1, and directly binds to AhR. Knockdown of AhR suppressed COX-2 expression as well as phosphorylation of ERK1/2 in HaCaT cells. Furthermore, topical treatment of 1,8-cineole on mouse skin delayed tumor incidence and reduced tumor numbers, while inhibiting COX-2 expression in vivo. Taken together, these results suggest that 1,8-cineole is a potent chemopreventive agent that inhibits UVB-induced COX-2 expression by targeting AhR to suppress UVB-induced skin carcinogenesis.
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Kim J, Vaish V, Feng M, Field K, Chatzistamou I, Shim M. Transgenic expression of cyclooxygenase-2 (COX2) causes premature aging phenotypes in mice. Aging (Albany NY) 2017; 8:2392-2406. [PMID: 27750221 PMCID: PMC5115895 DOI: 10.18632/aging.101060] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/25/2016] [Indexed: 12/20/2022]
Abstract
Cyclooxygenase (COX) is a key enzyme in the biosynthesis of prostanoids, lipid signaling molecules that regulate various physiological processes. COX2, one of the isoforms of COX, is highly inducible in response to a wide variety of cellular and environmental stresses. Increased COX2 expression is thought to play a role in the pathogenesis of many age-related diseases. COX2 expression is also reported to be increased in the tissues of aged humans and mice, which suggests the involvement of COX2 in the aging process. However, it is not clear whether the increased COX2 expression is causal to or a result of aging. We have now addressed this question by creating an inducible COX2 transgenic mouse model. Here we show that post-natal expression of COX2 led to a panel of aging-related phenotypes. The expression of p16, p53, and phospho-H2AX was increased in the tissues of COX2 transgenic mice. Additionally, adult mouse lung fibroblasts from COX2 transgenic mice exhibited increased expression of the senescence-associated β-galactosidase. Our study reveals that the increased COX2 expression has an impact on the aging process and suggests that modulation of COX2 and its downstream signaling may be an approach for intervention of age-related disorders.
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Affiliation(s)
- Joohwee Kim
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA.,Center for Colon Cancer Research, University of South Carolina, Columbia, SC 29208, USA
| | - Vivek Vaish
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA.,Center for Colon Cancer Research, University of South Carolina, Columbia, SC 29208, USA
| | - Mingxiao Feng
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA.,Center for Colon Cancer Research, University of South Carolina, Columbia, SC 29208, USA
| | - Kevin Field
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA
| | - Ioulia Chatzistamou
- Department of Pathology, Microbiology & Immunology, School of Medicine, University of South Carolina, Columbia, SC 29209, USA
| | - Minsub Shim
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA.,Center for Colon Cancer Research, University of South Carolina, Columbia, SC 29208, USA
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Cho BO, Che DN, Shin JY, Kang HJ, Kim JH, Kim HY, Cho WG, Jang SI. Ameliorative effects of Diospyros lotus leaf extract against UVB-induced skin damage in BALB/c mice. Biomed Pharmacother 2017; 95:264-274. [DOI: 10.1016/j.biopha.2017.07.159] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/10/2017] [Accepted: 07/30/2017] [Indexed: 11/17/2022] Open
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Sample A, He YY. Autophagy in UV Damage Response. Photochem Photobiol 2017; 93:943-955. [PMID: 27935061 PMCID: PMC5466513 DOI: 10.1111/php.12691] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 10/22/2016] [Indexed: 12/14/2022]
Abstract
UV radiation exposure from sunlight and artificial tanning beds is the major risk factor for the development of skin cancer and skin photoaging. UV-induced skin damage can trigger a cascade of DNA damage response signaling pathways, including cell cycle arrest, DNA repair and, if damage is irreparable, apoptosis. Compensatory proliferation replaces the apoptotic cells to maintain skin barrier integrity. Disruption of these processes can be exploited to promote carcinogenesis by allowing the survival and proliferation of damaged cells. UV radiation also induces autophagy, a catabolic process that clears unwanted or damaged proteins, lipids and organelles. The mechanisms by which autophagy is activated following UV exposure, and the functions of autophagy in UV response, are only now being clarified. Here, we summarize the current understanding of the mechanisms governing autophagy regulation by UV, the roles of autophagy in regulating cellular response to UV-induced photodamage and the implications of autophagy modulation in the treatment and prevention of photoaging and skin cancer.
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Affiliation(s)
- Ashley Sample
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL
- Committee on Cancer Biology, University of Chicago, Chicago, IL
| | - Yu-Ying He
- Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL
- Committee on Cancer Biology, University of Chicago, Chicago, IL
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Jatana S, Palmer BC, Phelan SJ, Gelein R, DeLouise LA. In vivo quantification of quantum dot systemic transport in C57BL/6 hairless mice following skin application post-ultraviolet radiation. Part Fibre Toxicol 2017; 14:12. [PMID: 28410606 PMCID: PMC5391571 DOI: 10.1186/s12989-017-0191-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/27/2017] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Previous work has demonstrated size, surface charge and skin barrier dependent penetration of nanoparticles into the viable layers of mouse skin. The goal of this work was to characterize the tissue distribution and mechanism of transport of nanoparticles beyond skin, with and without Ultraviolet Radiation (UVR) induced skin barrier disruption. Atomic absorption spectroscopy (AAS), flow cytometry and confocal microscopy were used to examine the effect of UVR dose (180 and 360 mJ/cm2 UVB) on the skin penetration and systemic distribution of quantum dot (QD) nanoparticles topically applied at different time-points post UVR using a hairless C57BL/6 mouse model. RESULTS Results indicate that QDs can penetrate mouse skin, regardless of UVR exposure, as evidenced by the increased cadmium in the local lymph nodes of all QD treated mice. The average % recovery for all treatment groups was 69.68% with ~66.84% of the applied dose recovered from the skin (both epicutaneous and intracutaneous). An average of 0.024% of the applied dose was recovered from the lymph nodes across various treatment groups. When QDs are applied 4 days post UV irradiation, at the peak of the skin barrier defect and LC migration to the local lymph node, there is an increased cellular presence of QD in the lymph node; however, AAS analysis of local lymph nodes display no difference in cadmium levels due to UVR treatment. CONCLUSIONS Our data suggests that Langerhans cells (LCs) can engulf QDs in skin, but transport to the lymph node may occur by both cellular (dendritic and macrophage) and non-cellular mechanisms. It is interesting that these specific nanoparticles were retained in skin similarly regardless of UVR barrier disruption, but the observed skin immune cell interaction with nanoparticles suggest a potential for immunomodulation, which we are currently examining in a murine model of skin allergy.
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Affiliation(s)
- Samreen Jatana
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
| | - Brian C Palmer
- Department of Environmental Medicine, University of Rochester Medical Center, New York, USA
| | - Sarah J Phelan
- Department of Environmental Medicine, University of Rochester Medical Center, New York, USA
| | - Robert Gelein
- Department of Environmental Medicine, University of Rochester Medical Center, New York, USA
| | - Lisa A DeLouise
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA. .,Department of Dermatology, University of Rochester Medical Center, Dermatology and Biomedical Engineering, 601 Elmwood Avenue, Box 697, Rochester, NY, 14642, USA.
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Misawa E, Tanaka M, Saito M, Nabeshima K, Yao R, Yamauchi K, Abe F, Yamamoto Y, Furukawa F. Protective effects of Aloe sterols against UVB-induced photoaging in hairless mice. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2017; 33:101-111. [PMID: 27995657 DOI: 10.1111/phpp.12286] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/14/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Aloe vera is a traditional medical plant whose gel has been widely used in skin care. Previously, we have identified Aloe sterols from Aloe vera as active ingredients. This study investigated the protective effects of Aloe sterols without polysaccharides, against ultraviolet B (UVB)-induced skin photoaging in mice using Aloe vera gel extract (AVGE) obtained by supercritical fluid extraction. METHODS Aloe vera gel extract was supplemented in the diet (12 or 120 ppm), and HR-1 hairless mice were exposed to UVB irradiation for 7 weeks. Skin measurements and histological and analytical studies were performed. RESULTS Repeated UVB irradiation induced rough wrinkling of skin with water content reduction and hyperkeratosis. AVGE administration resulted in the significant improvement of UVB-induced skin dryness, epidermal thickness, and wrinkle formation. The AVGE group also suppressed the degenerations of dermal collagen fibers and the appearance of cutaneous apoptosis cells induced by UVB. Furthermore, AVGE administration reduced the excess elevation of pro-inflammatory cytokines (IL-1β and TNF-α) and matrix metalloproteinases (MMP-2, MMP-9, MMP-12, and MMP-13) in UVB-exposed skin. CONCLUSION The dietary ingestion of Aloe sterols protected against chronic UVB damage in mouse skin, and our results suggest that Aloe sterols may prevent skin photoaging through the anti-inflammation and MMP regulation.
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Affiliation(s)
- Eriko Misawa
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Miyuki Tanaka
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Marie Saito
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Kazumi Nabeshima
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Ruiqing Yao
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Kouji Yamauchi
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Fumiaki Abe
- Food Science & Technology Institute, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan
| | - Yuki Yamamoto
- Department of Dermatology, Wakayama Medical University, Wakayama, Japan
| | - Fukumi Furukawa
- Department of Dermatology, Wakayama Medical University, Wakayama, Japan
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Shen Y, Kim AL, Du R, Liu L. Transcriptome Analysis Identifies the Dysregulation of Ultraviolet Target Genes in Human Skin Cancers. PLoS One 2016; 11:e0163054. [PMID: 27643989 PMCID: PMC5028058 DOI: 10.1371/journal.pone.0163054] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 09/01/2016] [Indexed: 12/11/2022] Open
Abstract
Exposure to ultraviolet radiation (UVR) is a major risk factor for both melanoma and non-melanoma skin cancers. In addition to its mutagenic effect, UVR can also induce substantial transcriptional instability in skin cells affecting thousands of genes, including many cancer genes, suggesting that transcriptional instability may be another important etiological factor in skin photocarcinogenesis. In this study, we performed detailed transcriptomic profiling studies to characterize the kinetic changes in global gene expression in human keratinocytes exposed to different UVR conditions. We identified a subset of UV-responsive genes as UV signature genes (UVSGs) based on 1) conserved UV-responsiveness of this subset of genes among different keratinocyte lines; and 2) UV-induced persistent changes in their mRNA levels long after exposure. Interestingly, 11 of the UVSGs were shown to be critical to skin cancer cell proliferation and survival. Through computational Gene Set Enrichment Analysis, we demonstrated that a significant portion of the UVSGs were dysregulated in human skin squamous cell carcinomas, but not in other human malignancies. This highlights the potential and specificity of the UVSGs in clinical diagnosis of UV damage and stratification of skin cancer risk.
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Affiliation(s)
- Yao Shen
- Department of Systems Biology, Columbia University, New York, NY, United States of America
| | - Arianna L. Kim
- Department of Dermatology, Columbia University, New York, NY, United States of America
| | - Rong Du
- Department of Dermatology, Columbia University, New York, NY, United States of America
| | - Liang Liu
- Department of Dermatology, Columbia University, New York, NY, United States of America
- * E-mail:
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Konger RL, Derr-Yellin E, Hojati D, Lutz C, Sundberg JP. Comparison of the acute ultraviolet photoresponse in congenic albino hairless C57BL/6J mice relative to outbred SKH1 hairless mice. Exp Dermatol 2016; 25:688-93. [PMID: 27095432 DOI: 10.1111/exd.13034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2016] [Indexed: 12/25/2022]
Abstract
Hairless albino Crl:SKH1-Hr(hr) mice are commonly utilized for studies in which hair or pigmentation would introduce an impediment to observational studies. Being an outbred strain, the SKH1 model suffers from key limitations that are not seen with congenic mouse strains. Inbred and congenic C57BL/6J mice are commonly utilized for modified genetic mouse models. We compare the acute UV-induced photoresponse between outbred SKH1 mice and an immune competent, hairless, albino C57BL/6J congenic mouse line [B6.Cg-Tyr(c-2J) Hr(hr) /J]. Histologically, B6.Cg-Tyr(c-2J) Hr(hr) /J skin is indistinguishable from that of SKH1 mice. The skin of both SKH1 and B6.Cg-Tyr(c-2J) Hr(hr) /J mice exhibited a reduction in hypodermal adipose tissue, the presence of utricles and dermal cystic structures, the presence of dermal granulomas and epidermal thickening. In response to a single 1500 J/m(2) ultraviolet B dose, the oedema and apoptotic responses were equivalent in both mouse strains. However, B6.Cg-Tyr(c-2J) Hr(hr) /J mice exhibited a more robust delayed sunburn reaction, with an increase in epidermal erosion, scab formation and myeloperoxidase activity relative to SKH1 mice. Compared with SKH1 mice, B6.Cg-Tyr(c-2J) Hr(hr) /J also exhibited an aberrant proliferative response to this single UV exposure. Epidermal Ki67 immunopositivity was significantly suppressed in B6.Cg-Tyr(c-2J) Hr(hr) /J mice at 24 h post-UV. A smaller non-significant reduction in Ki67 labelling was observed in SKH1 mice. Finally, at 72 h post-UV, SKH1 mice, but not B6.Cg-Tyr(c-2J) Hr(hr) /J mice, exhibited a significant increase in Ki67 immunolabelling relative to non-irradiated controls. Thus, B6.Cg-Tyr(c-2J) Hr(hr) /J mice are suitable for photobiology experiments.
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Affiliation(s)
- Raymond L Konger
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.,Department of Dermatology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Ethel Derr-Yellin
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Delaram Hojati
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Cathleen Lutz
- Rare and Orphan Disease Center, Department of Genetic Resources Sciences, The Jackson Laboratory, Bar Harbor, ME, USA
| | - John P Sundberg
- Research and Development, The Jackson Laboratory, Bar Harbor, ME, USA
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Na R, Laaksonen MA, Grulich AE, Meagher NS, McCaughan GW, Keogh AM, Vajdic CM. High azathioprine dose and lip cancer risk in liver, heart, and lung transplant recipients: A population-based cohort study. J Am Acad Dermatol 2016; 74:1144-1152.e6. [PMID: 26830865 DOI: 10.1016/j.jaad.2015.12.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/10/2015] [Accepted: 12/24/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND Iatrogenic immunosuppression is a risk factor for lip cancer but the determinants are unknown. OBJECTIVE We sought to quantify the association between the type, dose, and duration of iatrogenic immunosuppression and lip cancer risk in solid organ transplant recipients. METHODS We conducted a population-based cohort study of all adult Australian liver, heart, and lung transplant recipients from 1984 to 2006 (n = 4141). We abstracted longitudinal data from medical records and ascertained incident lip cancer (n = 58) and deaths (n = 1434) by linkage with national registries. We estimated multivariable hazard ratios (HR) for lip cancer using the Fine and Gray proportional subdistribution hazards model, accounting for death as a competing risk. RESULTS Lip cancer risk (n = 58) increased with high mean daily dose of azathioprine (HR 2.28, 95% confidence interval [CI] 1.18-4.38), longer duration of immunosuppression (HR 9.86, 95% CI 2.10-46.3), increasing year of age at transplantation (HR 1.14, 95% CI 1.04-1.25), earlier transplantation era (HR 8.73, 95% CI 1.11-68.7), and history of smoking (HR 2.71, 95% CI 1.09-6.70). LIMITATIONS Data on potential confounders such as personal solar ultraviolet radiation exposure were not available. CONCLUSION Higher doses of azathioprine increase lip cancer risk, with implications for managing immunosuppressed populations and our understanding of the relationship between solar ultraviolet radiation and lip cancer.
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Affiliation(s)
- Renhua Na
- Adult Cancer Program, Lowy Cancer Research Center, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia
| | - Maarit A Laaksonen
- Adult Cancer Program, Lowy Cancer Research Center, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia; Center for Big Data Research in Health, University of New South Wales, Sydney, Australia
| | - Andrew E Grulich
- Kirby Institute, University of New South Wales, Sydney, Australia
| | - Nicola S Meagher
- Adult Cancer Program, Lowy Cancer Research Center, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia
| | - Geoffrey W McCaughan
- Centenary Research Institute, Australian National Liver Transplant Unit, Royal Prince Alfred Hospital and University of Sydney, Sydney, Australia
| | | | - Claire M Vajdic
- Adult Cancer Program, Lowy Cancer Research Center, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia; Center for Big Data Research in Health, University of New South Wales, Sydney, Australia.
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Singh P, Arya M, Kanoujia J, Singh M, Gupta KP, Saraf SA. Design of topical nanostructured lipid carrier of silymarin and its effect on 7,12-dimethylbenz[a]anthracene (DMBA) induced cellular differentiation in mouse skin. RSC Adv 2016. [DOI: 10.1039/c6ra20231d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Effect of silymarin NLC on DMBA induced cell changes in mouse skin.
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Affiliation(s)
- Pooja Singh
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University
- Lucknow 226025
- India
| | - Malti Arya
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University
- Lucknow 226025
- India
| | - Jovita Kanoujia
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University
- Lucknow 226025
- India
| | - Mahendra Singh
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University
- Lucknow 226025
- India
| | - Krishna P. Gupta
- Environmental Carcinogenesis Division
- CSIR-Indian Institute of Toxicology Research
- Lucknow 226001
- India
| | - Shubhini A. Saraf
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University
- Lucknow 226025
- India
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Role of Green Tea in Reducing Epidermal Thickness upon Ultraviolet Light-B Injury in BALB/c Mice. ACTA ACUST UNITED AC 2015. [DOI: 10.1155/2015/890632] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The main environmental source for skin damage is ultraviolet (UV) radiation. Many adverse effects have been recognized as the result of prolonged cutaneous exposure to solar ultraviolet radiation, such as erythema, edema, apoptosis, hyperplastic responses, photo-aging, and skin cancer development. Green tea provides photo-protection against UV radiation through many mechanisms including anti-inflammatory, immunomodulatory, and antioxidant properties. The aim of this study was to evaluate the effect of green tea in reducing epidermal thickness on mouse’s skin exposed to UVB irradiation. Thirty mice (Mus musculus species, BALB/c strain) underwent this study and were divided into 3 groups: control group (n=10 mice), without UVB exposure and green tea administration; exposure group (n=10 mice), which were exposed to UVB light only; and treatment group (n=10 mice), which were exposed to UVB light and treated with 1 mL of green tea through oral gavage. Mice from both groups (exposure and treatment) were subjected to UVB irradiation 4 days/week (20 minutes/day, 4 weeks). It concluded that oral administration of green tea was provided photo-protection against UVB induced hyperplasia; therefore, it can be regarded as a natural alternative for photo-protection.
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43
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Yoshizaki N, Fujii T, Masaki H, Okubo T, Shimada K, Hashizume R. Orange peel extract, containing high levels of polymethoxyflavonoid, suppressed UVB-induced COX-2 expression and PGE2 production in HaCaT cells through PPAR-γ activation. Exp Dermatol 2015; 23 Suppl 1:18-22. [PMID: 25234831 DOI: 10.1111/exd.12394] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2014] [Indexed: 12/18/2022]
Abstract
Ultraviolet light (UV) induces an inflammatory response in the skin by cyclooxygenase (COX)-2 expression and prostaglandin (PG) E2 production. Citrus peel has been used as a natural medicine. It contains polymethoxyflavonoids (PMFs) as a major ingredient, which have anti-inflammatory activity. We obtained orange peel extract containing high levels of PMFs. The extract suppressed UVB-induced COX-2 expression and PGE2 production in HaCaT cells. Furthermore, it was found that this extract acted as a peroxisome proliferator-activated receptor (PPAR)-γ agonist. The suppression of UVB-induced COX-2 expression by this extract was inhibited by GW 9662 and T0070907, which are both PPAR-γ antagonists. It is therefore suggested that orange peel extract, containing high levels of PMFs, suppresses UVB-induced COX-2 expression and PGE2 production through PPAR-γ. Hence, these extracts could provide useful protection against or alleviation of UV damage.
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44
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Bosch R, Philips N, Suárez-Pérez JA, Juarranz A, Devmurari A, Chalensouk-Khaosaat J, González S. Mechanisms of Photoaging and Cutaneous Photocarcinogenesis, and Photoprotective Strategies with Phytochemicals. Antioxidants (Basel) 2015; 4:248-68. [PMID: 26783703 PMCID: PMC4665475 DOI: 10.3390/antiox4020248] [Citation(s) in RCA: 224] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 03/02/2015] [Accepted: 03/12/2015] [Indexed: 01/10/2023] Open
Abstract
Photoaging and photocarcinogenesis are primarily due to solar ultraviolet (UV) radiation, which alters DNA, cellular antioxidant balance, signal transduction pathways, immunology, and the extracellular matrix (ECM). The DNA alterations include UV radiation induced thymine-thymine dimers and loss of tumor suppressor gene p53. UV radiation reduces cellular antioxidant status by generating reactive oxygen species (ROS), and the resultant oxidative stress alters signal transduction pathways such as the mitogen-activated protein kinase (MAPK), the nuclear factor-kappa beta (NF-κB)/p65, the janus kinase (JAK), signal transduction and activation of transcription (STAT) and the nuclear factor erythroid 2-related factor 2 (Nrf2). UV radiation induces pro-inflammatory genes and causes immunosuppression by depleting the number and activity of the epidermal Langerhans cells. Further, UV radiation remodels the ECM by increasing matrixmetalloproteinases (MMP) and reducing structural collagen and elastin. The photoprotective strategies to prevent/treat photoaging and photocarcinogenesis include oral or topical agents that act as sunscreens or counteract the effects of UV radiation on DNA, cellular antioxidant balance, signal transduction pathways, immunology and the ECM. Many of these agents are phytochemical derivatives and include polyphenols and non-polyphenols. The flavonoids are polyphenols and include catechins, isoflavones, proanthocyanidins, and anthocyanins, whereas the non-flavonoids comprise mono phenolic acids and stilbenes. The natural sources of polyphenols include tea, cocoa, grape/wine, soy, pomegranate, and Polypodium leucotomos. The non-phenolic phytochemicals include carotenoids, caffeine and sulphoraphance (SFN). In addition, there are other phytochemical derivatives or whole extracts such as baicalin, flavangenol, raspberry extract, and Photomorphe umbellata with photoprotective activity against UVB radiation, and thereby carcinogenesis.
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Affiliation(s)
- Ricardo Bosch
- Department of Dermatology, Virgen de la Victoria University Hospital, Málaga 29010, Spain.
- Dermatology and Medicine Department, University of Málaga, Málag 29071, Spain.
| | - Neena Philips
- School of Natural Sciences, Fairleigh Dickinson University, 1000 River Road, Teaneck, NJ 07666, USA.
| | - Jorge A Suárez-Pérez
- Department of Dermatology, Virgen de la Victoria University Hospital, Málaga 29010, Spain.
- Dermatology and Medicine Department, University of Málaga, Málag 29071, Spain.
| | - Angeles Juarranz
- Biology Department, Universidad Autónoma de Madrid, Madrid 28903, Spain.
| | - Avani Devmurari
- School of Natural Sciences, Fairleigh Dickinson University, 1000 River Road, Teaneck, NJ 07666, USA.
| | | | - Salvador González
- Dermatology Service, Memorial Sloan-Kettering Cancer Center, New York, NY 10022, USA.
- Ramon y Cajal Hospital, Alcala University, Madrid 28034, Spain.
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Shin S, Kum H, Ryu D, Kim M, Jung E, Park D. Protective effects of a new phloretin derivative against UVB-induced damage in skin cell model and human volunteers. Int J Mol Sci 2014; 15:18919-40. [PMID: 25334063 PMCID: PMC4227253 DOI: 10.3390/ijms151018919] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 10/01/2014] [Accepted: 10/08/2014] [Indexed: 01/10/2023] Open
Abstract
The phenolic compound phloretin is a prominent member of the chemical class of dihydrochalcones. Phloretin is specifically found in apple and apple juice and known for its biological properties. We were particularly interested in its potential dermo-cosmetic applications. However, practical limitations of phloretin do exist due to its poor water-solubility. Phloretin was sulfonated with sulfuric acid (98%, wt) and mixed with saturated salt water to produce phloretin 3',3-disulfonate in order to increase its water-solubility. Here we reported the photoprotective effect of phloretin 3',3-disulfonate (PS), a new semi-synthetic derivative of phloretin. Results showed that PS attenuated cyclobutane pyrimidine dimer (CPDs) formation, glutathione (GSH) depletion and apoptosis induced by ultraviolet B (UVB). The photoprotective effect of PS is tightly correlated to the enhancement of nucleotide excision repair (NER) gene expression. Furthemore, PS had inhibitory effects on UVB-induced release of the inflammatory mediators, such as IL-6 and prostaglandin-E2. We also confirmed the safety and clinical efficacy of PS on human skin. Overall, the results demonstrated significant benefits of PS on the protection of keratinocytes against UVB-induced injuries and suggested its potential use in skin photoprotection.
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Affiliation(s)
- Seoungwoo Shin
- Biospectrum Life Science Institute, Seoungnam City, Gyunggi Do 462-807, Korea.
| | - Hyunwoo Kum
- Biospectrum Life Science Institute, Seoungnam City, Gyunggi Do 462-807, Korea.
| | - Dehun Ryu
- Biospectrum Life Science Institute, Seoungnam City, Gyunggi Do 462-807, Korea.
| | - Minkyung Kim
- Biospectrum Life Science Institute, Seoungnam City, Gyunggi Do 462-807, Korea.
| | - Eunsun Jung
- Biospectrum Life Science Institute, Seoungnam City, Gyunggi Do 462-807, Korea.
| | - Deokhoon Park
- Biospectrum Life Science Institute, Seoungnam City, Gyunggi Do 462-807, Korea.
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Pal HC, Athar M, Elmets CA, Afaq F. Fisetin inhibits UVB-induced cutaneous inflammation and activation of PI3K/AKT/NFκB signaling pathways in SKH-1 hairless mice. Photochem Photobiol 2014; 91:225-34. [PMID: 25169110 DOI: 10.1111/php.12337] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 08/25/2014] [Indexed: 12/26/2022]
Abstract
Solar ultraviolet B (UVB) radiation has been shown to induce inflammation, DNA damage, p53 mutations and alterations in signaling pathways eventually leading to skin cancer. In this study, we investigated whether fisetin reduces inflammatory responses and modulates PI3K/AKT/NFκB cell survival signaling pathways in UVB-exposed SKH-1 hairless mouse skin. Mice were exposed to 180 mJ cm(-2) of UVB radiation on alternate days for a total of seven exposures, and fisetin (250 and 500 nmol) was applied topically after 15 min of each UVB exposure. Fisetin treatment to UVB-exposed mice resulted in decreased hyperplasia and reduced infiltration of inflammatory cells. Fisetin treatment also reduced inflammatory mediators such as COX-2, PGE2 as well as its receptors (EP1-EP4) and MPO activity. Furthermore, fisetin reduced the level of inflammatory cytokines TNFα, IL-1β and IL-6 in UVB-exposed skin. Fisetin treatment also reduced cell proliferation markers as well as DNA damage as evidenced by increased expression of p53 and p21 proteins. Further studies revealed that fisetin inhibited UVB-induced expression of PI3K, phosphorylation of AKT and activation of the NFκB signaling pathway in mouse skin. Overall, these data suggest that fisetin may be useful against UVB-induced cutaneous inflammation and DNA damage.
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Affiliation(s)
- Harish Chandra Pal
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL
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47
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Choi KS, Kundu JK, Chun KS, Na HK, Surh YJ. Rutin inhibits UVB radiation-induced expression of COX-2 and iNOS in hairless mouse skin: p38 MAP kinase and JNK as potential targets. Arch Biochem Biophys 2014; 559:38-45. [DOI: 10.1016/j.abb.2014.05.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/27/2014] [Accepted: 05/18/2014] [Indexed: 01/29/2023]
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48
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Jiao J, Mikulec C, Ishikawa TO, Magyar C, Dumlao DS, Dennis EA, Fischer SM, Herschman H. Cell-type-specific roles for COX-2 in UVB-induced skin cancer. Carcinogenesis 2014; 35:1310-9. [PMID: 24469308 DOI: 10.1093/carcin/bgu020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In human tumors, and in mouse models, cyclooxygenase-2 (COX-2) levels are frequently correlated with tumor development/burden. In addition to intrinsic tumor cell expression, COX-2 is often present in fibroblasts, myofibroblasts and endothelial cells of the tumor microenvironment, and in infiltrating immune cells. Intrinsic cancer cell COX-2 expression is postulated as only one of many sources for prostanoids required for tumor promotion/progression. Although both COX-2 inhibition and global Cox-2 gene deletion ameliorate ultraviolet B (UVB)-induced SKH-1 mouse skin tumorigenesis, neither manipulation can elucidate the cell type(s) in which COX-2 expression is required for tumorigenesis; both eliminate COX-2 activity in all cells. To address this question, we created Cox-2(flox/flox) mice, in which the Cox-2 gene can be eliminated in a cell-type-specific fashion by targeted Cre recombinase expression. Cox-2 deletion in skin epithelial cells of SKH-1 Cox-2(flox/flox);K14Cre(+) mice resulted, following UVB irradiation, in reduced skin hyperplasia and increased apoptosis. Targeted epithelial cell Cox-2 deletion also resulted in reduced tumor incidence, frequency, size and proliferation rate, altered tumor cell differentiation and reduced tumor vascularization. Moreover, Cox-2(flox/flox);K14Cre(+) papillomas did not progress to squamous cell carcinomas. In contrast, Cox-2 deletion in SKH-1 Cox-2(flox/flox); LysMCre(+) myeloid cells had no effect on UVB tumor induction. We conclude that (i) intrinsic epithelial COX-2 activity plays a major role in UVB-induced skin cancer, (ii) macrophage/myeloid COX-2 plays no role in UVB-induced skin cancer and (iii) either there may be another COX-2-dependent prostanoid source(s) that drives UVB skin tumor induction or there may exist a COX-2-independent pathway(s) to UVB-induced skin cancer.
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Affiliation(s)
- Jing Jiao
- Department of Molecular and Medical Pharmacology and Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Carol Mikulec
- Department of Molecular Carcinogenesis, Science Park, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Tomo-o Ishikawa
- Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - Clara Magyar
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA and
| | - Darren S Dumlao
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Edward A Dennis
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Susan M Fischer
- Department of Molecular Carcinogenesis, Science Park, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957, USA
| | - Harvey Herschman
- Department of Molecular and Medical Pharmacology and Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA,
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Mortensen LJ, Jatana S, Gelein R, De Benedetto A, De Mesy Bentley KL, Beck L, Elder A, DeLouise LA. Quantification of quantum dot murine skin penetration with UVR barrier impairment. Nanotoxicology 2013; 7:1386-98. [PMID: 23078247 PMCID: PMC3816392 DOI: 10.3109/17435390.2012.741726] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ultraviolet radiation (UVR) skin exposure is a common exogenous insult that can alter skin barrier and immune functions. With the growing presence of nanoparticles (NPs) in consumer goods and technological applications the potential for NPs to contact UVR-exposed skin is increasing. Therefore it is important to understand the effect of UVR on NP skin penetration and the potential for systemic translocation. Previous studies qualitatively showed that UVR skin exposure can increase the penetration of NPs below the stratum corneum. In this work, an in vivo mouse model was used to quantitatively examine the skin penetration of carboxylated (CdSe/ZnS, core/shell) quantum dots (QDs) through intact and UVR barrier-disrupted murine skin by organ Cd mass analysis. Transepidermal water loss was used to measure the magnitude of the skin barrier defect as a function of UVR dose and time post-UVR exposure. QDs were applied to mice 3-4 days post-UVR exposure at the peak of the skin barrier disruption. Our results reveal unexpected trends that suggest these negative-charged QDs can penetrate barrier intact skin and that penetration and systemic transport depends on the QD application time post-UVR exposure. The effect of UVR on skin-resident dendritic cells and their role in the systemic translocation of these QDs are described. Our results suggest that NP skin penetration and translocation may depend on the specific barrier insult and the inflammatory status of the skin.
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Affiliation(s)
| | - Samreen Jatana
- Department of Biomedical Engineering, Rochester, NY, 14642
| | - Robert Gelein
- Department of Environmental Medicine, Rochester, NY, 14642
| | - Anna De Benedetto
- Department of Dermatology, University of Rochester, Rochester, NY, 14642
| | | | - Lisa Beck
- Department of Dermatology, University of Rochester, Rochester, NY, 14642
| | - Alison Elder
- Department of Environmental Medicine, Rochester, NY, 14642
| | - Lisa A. DeLouise
- Department of Biomedical Engineering, Rochester, NY, 14642
- Department of Dermatology, University of Rochester, Rochester, NY, 14642
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50
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Abstract
Multiple molecular mechanisms are involved in the promotion of skin carcinogenesis. Induction of sustained proliferation and epidermal hyperplasia by direct activation of mitotic signaling pathways or indirectly in response to chronic wounding and/or inflammation, or due to a block in terminal differentiation or resistance to apoptosis is necessary to allow clonal expansion of initiated cells with DNA mutations to form skin tumors. The mitotic pathways include activation of epidermal growth factor receptor and Ras/Raf/mitogen-activated protein kinase signaling. Chronic inflammation results in inflammatory cell secretion of growth factors and cytokines such as tumor necrosis factor-α and interleukins, as well as production of reactive oxygen species, all of which can stimulate proliferation. Persistent activation of these pathways leads to tumor promotion.
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