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Shi S, Zhang J, Quan S, Yang Y, Yao L, Xiao J. A highly biocompatible and bioactive transdermal nano collagen for enhanced healing of UV-damaged skin. Int J Biol Macromol 2024; 272:132857. [PMID: 38834124 DOI: 10.1016/j.ijbiomac.2024.132857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/25/2024] [Accepted: 05/31/2024] [Indexed: 06/06/2024]
Abstract
Skin damage caused by excessive UV radiation has gradually become one of the most prevalent skin diseases. Collagen has gradually found applications in the treatment of UV-damaged skin; however, their high molecular weight greatly limits their capacity to permeate the skin barrier and repair the damaged skin. Nano collagen has garnered growing attentions in the mimicking of collagen; while the investigation of its skin permeability and wound-healing capability remains vacancies. Herein, we have for the first time created a highly biocompatible and bioactive transdermal nano collagen demonstrating remarkable transdermal capacity and repair efficacy for UV-damaged skin. The transdermal nano collagen exhibited a stable triple-helix structure, effectively promoting the adhesion and proliferation of fibroblasts. Notably, the transdermal nano collagen displayed exceptional penetration capabilities, permeating fibroblast and healthy skin. Combo evaluations revealed that the transdermal nano collagen contributed to recovering the intensity and TEWL values of UV-damaged skin to normal level. Histological analysis further indicated that transdermal nano collagen significantly accelerated the repair of damaged skin by promoting the collagen regeneration and fibroblasts activation. This highly biocompatible and bioactive transdermal nano collagen provides a novel substituted strategy for the transdermal absorption of collagen, indicating great potential applications in cosmetics and dermatology.
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Affiliation(s)
- Shuangni Shi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Jingting Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Siqi Quan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Yi Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China
| | - Linyan Yao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; School of Life Science, Lanzhou University, Lanzhou 730000, PR China.
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, PR China.
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Dinu M, Tatu AL, Cocoș DI, Nwabudike LC, Chirilov AM, Stefan CS, Earar K, Dumitriu Buzia O. Natural Sources of Therapeutic Agents Used in Skin Conditions. Life (Basel) 2024; 14:492. [PMID: 38672762 PMCID: PMC11051086 DOI: 10.3390/life14040492] [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: 03/07/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Skin conditions are numerous and often have a major impact on patients' quality of life, and effective and safe treatment is very important. The conventional drugs used for skin diseases are usually corticosteroids and antimicrobial products that can induce various side effects, especially with long-term use, which is why researchers are studying alternatives, especially biologically active natural products. Three products caught our attention: bee venom (BV), due to reported experimental results showing anti-inflammatory, antibacterial, antiviral, antioxidant, antimycotic, and anticancer effects, Ficus carica (FC) due to its demonstrated antioxidant, antibacterial, and anti-inflammatory action, and finally Geranium essential oil (GEO), with proven antifungal, antibacterial, anti-inflammatory, and antioxidant effects. Following a review of the literature, we produced this paper, which presents a review of the potential therapeutic applications of the three products in combating various skin conditions and for skin care, because BV, FC, and GEO have common pharmacological actions (anti-inflammatory, antibacterial, and antioxidant). We also focused on studying the safety of the topical use of BV, FC, and GEO, and new approaches to this. This paper presents the use of these natural therapeutic agents to treat patients with conditions such as vitiligo, melasma, and melanoma, as well as their use in treating dermatological conditions in patients with diabetes.
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Affiliation(s)
- Monica Dinu
- Centre in the Medical-Pharmaceutical Field, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania; (M.D.); (C.S.S.); (K.E.); (O.D.B.)
| | - Alin Laurențiu Tatu
- Clinical Medical Department, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania;
- Dermatology Department, “Sf. Cuvioasa Parascheva” Clinical Hospital of Infectious Diseases, 800179 Galati, Romania
- Multidisciplinary Integrative Center for Dermatologic Interface Research MIC-DIR, 800010 Galati, Romania
| | - Dorin Ioan Cocoș
- Centre in the Medical-Pharmaceutical Field, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania; (M.D.); (C.S.S.); (K.E.); (O.D.B.)
| | | | - Ana Maria Chirilov
- Centre in the Medical-Pharmaceutical Field, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania; (M.D.); (C.S.S.); (K.E.); (O.D.B.)
| | - Claudia Simona Stefan
- Centre in the Medical-Pharmaceutical Field, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania; (M.D.); (C.S.S.); (K.E.); (O.D.B.)
| | - Kamel Earar
- Centre in the Medical-Pharmaceutical Field, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania; (M.D.); (C.S.S.); (K.E.); (O.D.B.)
| | - Olimpia Dumitriu Buzia
- Centre in the Medical-Pharmaceutical Field, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania; (M.D.); (C.S.S.); (K.E.); (O.D.B.)
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Fu C, Shi S, Tian J, Gu H, Yao L, Xiao J. Non-denatured yak type I collagen accelerates sunburned skin healing by stimulating and replenishing dermal collagen. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 37:e00778. [PMID: 36578365 PMCID: PMC9791591 DOI: 10.1016/j.btre.2022.e00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/28/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Sunburn is one of the most common skin lesions caused by excessive UV exposure, and its incidence is highly correlated with the risks of skin cancer. A variety of drugs including corticosteroids and NSAIDs have been developed to treat acute sunburn, however, they have raised severe concerns such as poor healing efficacy and long recovery time. We have for the first time extracted non-denatured type I collagen from yak hide, which displays a canonical triple helical structure with melting temperature of 42.7 °C. The highly pure yak collagen type I (YCI) self-assembles to form well-ordered nanofibers with periodic d-bands. YCI is highly biocompatible, and it significantly promotes the proliferation and adhesion of HFF-1 cells. The sunburn healing effects of YCI has been investigated using acute skin injury mouse model. Histological analysis shows that 4 days' treatment of YCI has resulted in the recovery of sunburned mice skin to a healthy state, indicated by pronounced acceleration of epithelization and collagen deposition. The collagen volume fraction as well as the hydroxyproline (Hyp) content of YCI-treated sunburned skin have been found to be greatly increased, confirming the enhanced regeneration of collagen. YCI creams and dressings have also shown superior healing capacity of sunburn by remarkably shortening the recovery time. Notably, the denatured collagen-targeted staining results indicated a large quantity of denatured collagen in sunburned mice, which became substantially reduced after the YCI treatment. FITC-labeled YCI has been further found to penetrate into the dermis of sunburned mice. The highly biocompatible and bioactive non-denatured YCI provides an improved treatment of sunburn, indicating very promising applications of YCI in cosmetics and dermatology.
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Affiliation(s)
- Caihong Fu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China,Gansu Engineering Research Center of Medical Collagen, China
| | - Shuangni Shi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China,Gansu Engineering Research Center of Medical Collagen, China
| | - Jing Tian
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China,Gansu Engineering Research Center of Medical Collagen, China
| | - Hong Gu
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Linyan Yao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China,Gansu Engineering Research Center of Medical Collagen, China
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, China,Gansu Engineering Research Center of Medical Collagen, China,Corresponding author.
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Huo Y, Yang D, Lai K, Tu J, Zhu Y, Ding W, Yang S. Antioxidant Effects of Resveratrol in Intervertebral Disk. J INVEST SURG 2021; 35:1135-1144. [PMID: 34670455 DOI: 10.1080/08941939.2021.1988771] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Intervertebral disk (IVD) degeneration (IVDD) can cause various spinal degenerative diseases. Cumulative evidence has indicated that IVDD can result from inflammation, apoptosis, autophagy, biomechanical changes and other factors. Currently, lack of conservative treatment for degenerative spinal diseases leads to an urgent demand for clinically applicable medication to ameliorate the progression of IVDD. Resveratrol (3,5,4'-trihydroxy-trans-stilbene), a polyphenol compound extracted from red wine or grapes, has shown protective effects on IVD, alleviating the progression of IVDD. Resveratrol has been demonstrated as a scavenger of free radicals both in vivo and in vitro. The antioxidant effects of resveratrol are likely attributed to its regulation on mitochondrial dysfunction or the elimination of reactive oxygen species. This review will summarize the mechanisms of the reactive oxygen species production and elaborate the mechanisms of resveratrol in retarding IVDD progression, providing a comprehensive understanding of the antioxidant effects of resveratrol in IVD.
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Affiliation(s)
- Yachong Huo
- Department of Spine Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, PR China.,Hebei Medical University, Shijiazhuang, PR China
| | - Dalong Yang
- Department of Spine Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, PR China
| | - Kaitao Lai
- ANZAC Research Institute, The University of Sydney, Sydney, Australia
| | - Ji Tu
- Spine Labs, St. George & Sutherland Clinical School, University of New South Wales, Sydney, Australia
| | - Yibo Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane, Australia
| | - Wenyuan Ding
- Department of Spine Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, PR China
| | - Sidong Yang
- Department of Spine Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, PR China.,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia
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Drug-Induced Neutropenia During Treatment of Non-Neoplastic Dermatologic Diseases: A Review. Clin Drug Investig 2020; 40:915-926. [PMID: 32691244 DOI: 10.1007/s40261-020-00956-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Idiosyncratic drug-induced neutropenia (DIN) is a rare, potentially fatal adverse reaction. A literature search was performed on Pubmed and Embase, targeting articles indicating neutropenia as a complication during the treatment of non-neoplastic dermatological disorders. In 66 identified articles, the common incriminated drugs included conventional oral immunomodulators, topical cytotoxic agents, antibacterials, antifungals, biologics and targeted synthetic disease-modifying antirheumatic drugs, non-steroidal anti-inflammatory drugs, and retinoids, with dapsone being reported most often. The duration of drug exposure before the diagnosis of neutropenia varied, but mostly ranged from days to weeks. The majority of patients recovered after drug discontinuation and supportive management including antibiotics and granulocyte colony-stimulating factor, but fatal cases were reported. The proposed pathogenesis of DIN consists of direct drug toxicity and immune-mediated reaction. Certain genetic variants, individual variability in enzyme efficiency, and concomitant use of other drugs may increase the risk of DIN. Being familiar with the most commonly implicated agents and risk factors helps early identification and prompt management of this potentially fatal complication.
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Kim H, Park SY, Lee G. Potential Therapeutic Applications of Bee Venom on Skin Disease and Its Mechanisms: A Literature Review. Toxins (Basel) 2019; 11:toxins11070374. [PMID: 31252651 PMCID: PMC6669657 DOI: 10.3390/toxins11070374] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 06/23/2019] [Accepted: 06/25/2019] [Indexed: 01/03/2023] Open
Abstract
Skin is larger than any other organ in humans. Like other organs, various bacterial, viral, and inflammatory diseases, as well as cancer, affect the skin. Skin diseases like acne, atopic dermatitis, and psoriasis often reduce the quality of life seriously. Therefore, effective treatment of skin disorders is important despite them not being life-threatening. Conventional medicines for skin diseases include corticosteroids and antimicrobial drugs, which are effective in treating many inflammatory and infectious skin diseases; however, there are growing concerns about the side effects of these therapies, especially during long-term use in relapsing or intractable diseases. Hence, many researchers are trying to develop alternative treatments, especially from natural sources, to resolve these limitations. Bee venom (BV) is an attractive candidate because many experimental and clinical reports show that BV exhibits anti-inflammatory, anti-apoptotic, anti-fibrotic, antibacterial, antiviral, antifungal, and anticancer effects. Here, we review the therapeutic applications of BV in skin diseases, including acne, alopecia, atopic dermatitis, melanoma, morphea, photoaging, psoriasis, wounds, wrinkles, and vitiligo. Moreover, we explore the therapeutic mechanisms of BV in the treatment of skin diseases and killing effects of BV on skin disease-causing pathogens, including bacteria, fungi and viruses.
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Affiliation(s)
- Haejoong Kim
- College of Korean Medicine, Dongshin University, Naju-si, Jeollanam-do 58245, Korea
| | - Soo-Yeon Park
- Department of Ophthalmology, Otolaryngology & Dermatology, College of Korean Medicine, Dongshin University, Naju-si, Jeollanam-do 58245, Korea.
| | - Gihyun Lee
- College of Korean Medicine, Dongshin University, Naju-si, Jeollanam-do 58245, Korea.
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A Novel Adverse Event Associated with Olaparib Therapy in a Patient with Metastatic Breast Cancer. Case Rep Oncol Med 2018; 2018:9529821. [PMID: 30050710 PMCID: PMC6040243 DOI: 10.1155/2018/9529821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/13/2018] [Indexed: 12/02/2022] Open
Abstract
Olaparib was first FDA approved for use in women with advanced ovarian cancer and germline BRCA mutations. Based on the results of subsequent research, the use of this drug has been expanded to patients with metastatic breast cancer with germline BRCA mutation. With the use of a relatively new medication and a larger patient population eligible for therapy, monitoring for novel adverse events associated with therapy is important. This case represents a patient with metastatic breast cancer and germline BRCA2 mutation who developed erythema nodosum after initiation of therapy with olaparib capsules. Her characteristic rash appeared shortly after starting olaparib and recurred after restarting olaparib an additional two times. She was treated with short courses of prednisone therapy with or without holding olaparib with resolution of her rash. The patient was later restarted on olaparib capsules 200 mg twice daily, and she more recently has been maintained on olaparib tablets 300 mg twice daily. On both regimens, the patient experienced only attenuated episodes of erythema nodosum that have not required cessation of therapy or steroid therapy.
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Human fibroblasts support the expansion of IL-17-producing T cells via up-regulation of IL-23 production by dendritic cells. Blood 2010; 116:1715-25. [PMID: 20538798 DOI: 10.1182/blood-2010-01-263509] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The initiation of immune responses is associated with the maturation of dendritic cells (DCs) and their migration to draining lymph nodes. En route activated DCs encounter cells of the tissue microenvironment, such as fibroblasts. Because we have shown that DCs interact with fibroblasts during immune responses, we studied the impact of skin fibroblasts on human monocyte-derived DC function and subsequent human T-cell (TC) differentiation. We show that fibroblasts support interleukin-23 (IL-23) secretion from DCs preactivated by lipopolysaccharide (DC(act)) compared with lipopolysaccharide-activated DCs alone. The underlying complex feedback-loop mechanism involves IL-1β/tumor necrosis factor-α (from DC(act)), which stimulate fibroblasts prostaglandin E(2) production. Prostaglandin E(2), in turn, acts on DC(act) and increases their IL-23 release. Furthermore, fibroblast-stimulated DC(act) are far superior to DC(act) alone, in promoting the expansion of Th17 cells in a Cox-2-, IL-23-dependent manner. Using CD4(+)CD45RO(+) memory TCs and CD4(+)CD45RA(+) naive TCs, we showed that fibroblasts induce a phenotype of DC(act) that promotes the expansion of Th17 cells. Moreover, in psoriasis, a prototypic immune response in which the importance of IL-23/Th17 is known, high expression of Cox-2 in fibroblasts was observed. In conclusion, skin fibroblasts are involved in regulation of IL-23 production in DCs and, as a result, of Th17 expansion.
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Clouser MC, Roe DJ, Foote JA, Harris RB. Effect of non-steroidal anti-inflammatory drugs on non-melanoma skin cancer incidence in the SKICAP-AK trial. Pharmacoepidemiol Drug Saf 2009; 18:276-83. [PMID: 19226541 DOI: 10.1002/pds.1718] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Recent studies link the prostaglandin metabolic pathway to skin carcinogenesis expanding possibilities that cyclooxygenase (COX) inhibitors may be utilized in non-melanoma skin cancer (NMSC) chemoprevention. Using data from a study of the efficacy of retinol supplementation on incidence of NMSC, we sought to determine the role of non-steroidal anti-inflammatory drugs (NSAIDs) in NMSC development. Cox proportional hazards models describe the relationship between NSAID use and time to first squamous cell carcinoma (SCC) or basal cell carcinoma (BCC) among participants categorized by use pattern: continuous users (use for length of study duration), new users (use for less than study duration), and non-users. For SCC and BCC, there was a statistically significant protective effect for participants who reported use for less than the study duration (HR = 0.49, 95%CI 0.28-0.87 and HR = 0.43, 95%CI 0.25-0.73, respectively). Categorical examination of NSAIDs (aspirin (ASA) vs. non-ASA NSAIDs) showed significant effects for BCC among those using non-ASA NSAIDs for less than the study duration (HR = 0.33, 95%CI 0.13-0.80). For SCC and BCC, NSAID use of shorter duration and potentially more recent, was more protective than longer duration of use. These results are counter to the idea that longer duration of NSAID use is more protective. Additional investigations are needed into the role NSAIDs play in the chemoprevention of NMSC.
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Affiliation(s)
- Mary C Clouser
- Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85719, USA.
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Lee SH, Shin YW, Bae EA, Lee B, Min S, Baek NI, Chung HG, Kim NJ, Kim DH. Lactic acid bacteria increase antiallergic effect ofArtemisia princeps pampanini SS-1. Arch Pharm Res 2006; 29:752-6. [PMID: 17024848 DOI: 10.1007/bf02974075] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Artemisia princeps Pampanini, which is called Ssajuarissuk in Korean (SS-1), was fermented with lactic acid bacteria (LAB) and their passive cutaneous anaphylaxis reaction-inhibitory activity was investigated. Of these fermented agents, SS-1 extract fermented with Bifidobacterium infantis K-525 (F-SS-1) most effectively inhibited the release of P-hexosamindase from RBL-2H3 cells induced IgE. In IgE-induced RBL-2H3 cells, F-SS-1 inhibited proinflammatory cytokines IL-6 and TNF-alpha mRNA expression. Oral administration of SS-1 and F-SS-1 to mice inhibited passive cutaneous anaphylaxis (PCA) reaction induced by IgE and scratching behaviors induced by compound 48/80. The inhibitory activity of F-SS-1 against scratching behaviors was more effective than that of SS-1. These findings suggest that the fermentation of SS-1 with LAB can increase its antiallergic activity.
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Affiliation(s)
- Seung-Hoon Lee
- College of Pharmacy, Kyung Hee University, Dongdaemun-ku, Seoul 130-701, Korea
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Denkins Y, Kempf D, Ferniz M, Nileshwar S, Marchetti D. Role of ω-3 polyunsaturated fatty acids on cyclooxygenase-2 metabolism in brain-metastatic melanoma. J Lipid Res 2005; 46:1278-84. [PMID: 15772428 DOI: 10.1194/jlr.m400474-jlr200] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cyclooxygenase-2 (COX-2) is important in the progression of epithelial tumors. Evidence indicates that omega-6 PUFAs such as arachidonic acid (AA) promote the growth of tumor cells; however, omega-3 fatty acids [eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] inhibit tumor cell proliferation. We investigated the effects of omega-3 PUFA on the expression and function of COX-2 in 70W, a human melanoma cell line that metastasizes to the brain in nude mice. We show that 1) tumor necrosis factor-alpha upregulates the expression of both COX-2 mRNA and prostaglandin E2 (PGE2) production, and 2) omega-3 and omega-6 PUFA regulate COX-2 mRNA expression and PGE2 production. AA increased COX-2 mRNA expression and prostaglandin production in omega-6-stimulated 70W cells. Conversely, COX-2 mRNA expression decreased in cells incubated with EPA or DHA. AA increased Matrigel invasion 2.4-fold, whereas EPA or DHA did not. Additionally, PGE2 increased in vitro invasion 2.5-fold, whereas exposure to PGE3 significantly decreased invasion. Our results demonstrate that incubation of 70W cells with either AA or PGE2 increased invasiveness, whereas incubation with EPA or DHA downregulated both COX-2 mRNA and protein expression, with a subsequent decrease in Matrigel invasion. Taken together, these results indicate that omega-3 PUFA regulate COX-2-mediated invasion in brain-metastatic melanoma.
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Affiliation(s)
- Yvonne Denkins
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
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Kienzler JL, Magnette J, Queille-Roussel C, Sanchez-Ponton A, Ortonne JP. Diclofenac-Na Gel Is Effective in Reducing the Pain and Inflammation Associated with Exposure to Ultraviolet Light – Results of Two Clinical Studies. Skin Pharmacol Physiol 2005; 18:144-52. [PMID: 15897687 DOI: 10.1159/000084912] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2003] [Accepted: 12/09/2004] [Indexed: 12/30/2022]
Abstract
The potential of a diclofenac-Na Emulgel (diclofenac gel) to alleviate the pain and associated symptoms caused by sunburn has been evaluated versus vehicle. Sunburn was induced on the buttock skin of healthy adult male subjects by irradiation with UVA + UVB rays. Investigational products were applied 6 and 10 h after irradiation, and efficacy was assessed on the basis of spontaneous and provoked pain, erythema, oedema, skin colour and temperature. The minimal efficacious concentration evaluated in an extension (0.1 vs. 0.25% diclofenac gel) of a previous concentration-finding study (1, 0.5 and 0.25% diclofenac gel) was 0.1% and was efficacious in alleviating pain (spontaneous and provoked) as well as reducing erythema, oedema and skin temperature. In a single- versus 2-application comparison study, a single application of 0.1% gel was sufficient to alleviate the pain and accompanying symptoms of sunburn with an onset of action 2 h after application. A second application of gel 4 h after the first maintained the analgesia and reduction of other symptoms for a period of up to 48 h after irradiation.
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Wee SS, Shin YW, Bae EA, Kim DH. Effect of Chunghyuldan in Chronic Oxazolone-Induced Mouse Dermatitis. Biol Pharm Bull 2005; 28:1079-82. [PMID: 15930749 DOI: 10.1248/bpb.28.1079] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To evaluate the antipsoriatic effect of Chunghyuldan (CHD, Daio-Orengedokuto in Japanese), which exhibited anti-inflammatory and antiischemic actions, the inhibitory activity of CHD metabolized with and without human intestinal microflora was investigated in oxazolone-induced mouse ear dermatitis. The CHD and metabolized CHD (MCHD) at concentrations of 0.1% also potently suppressed mouse ear swelling by 52.7% and 63.2% at 16 d, respectively. The antipsoriatic effect between CHD and MCHD was not significantly different, although that of CHD weakly increased by the metabolism of human intestinal microflora. Both CHD and MCHD also potently reduced the mRNA levels of cyclooxygenase (COX)-2, interferon (IFN)-gamma and IL-4 increased in oxazolone-applied mouse ears, but weakly inhibited that of IL-1beta and TNF-alpha. Based on these findings, CHD may improve contact dermatitis or psoriasis by the regulation of COX-2 produced by macrophage cells and IFN-gamma and IL-4 produced by Th cells.
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Affiliation(s)
- Sung-Sook Wee
- College of Pharmacy, Kyung Hee University, Seoul, Korea
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Asgari M, White E, Chren MM. Nonsteroidal Anti-inflammatory Drug Use in the Prevention and Treatment of Squamous Cell Carcinoma. Dermatol Surg 2004; 30:1335-42. [PMID: 15458531 DOI: 10.1111/j.1524-4725.2004.30407.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Nonsteroidal anti-inflammatory drugs are widely reported to inhibit carcinogenesis. OBJECTIVE The objective was to review the literature on nonsteroidal anti-inflammatory drugs in the prevention and treatment of cancer as it pertains to cutaneous squamous cell carcinoma. METHODS We searched MEDLINE and performed a review of all published data on nonsteroidal anti-inflammatory drugs and cutaneous oncogenesis. RESULTS In vitro and animal data strongly suggest a role for cyclooxygenase-2 in the formation of actinic keratoses and squamous cell carcinomas. Further observational studies and clinical trials are needed to assess their putative role in chemoprevention. CONCLUSIONS Nonsteroidal anti-inflammatory drugs have activity against squamous cell carcinomas in vitro and in animal models, as well as in precursor lesions of squamous cell carcinomas. Human trials using selective cyclooxygenase-2 inhibitors are currently in progress and should offer exciting information regarding the chemopreventative function of nonsteroidal anti-inflammatory drugs.
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Affiliation(s)
- Maryam Asgari
- Division of Dermatology, University of Washington Medical Center, Seattle, Washington 98195, USA.
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