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Bharadvaja N, Gautam S, Singh H. Natural polyphenols: a promising bioactive compounds for skin care and cosmetics. Mol Biol Rep 2023; 50:1817-1828. [PMID: 36494596 DOI: 10.1007/s11033-022-08156-9] [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: 06/12/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022]
Abstract
The physiological and morphological aspects of skin suffer from frequent change. Numerous internal and external factors have direct impact on inducing various skin problems like inflammation, aging, cancer, oxidative stress, hyperpigmentation etc. The use of plant polyphenols as a photo-ecting agent is gaining popularity nowadays. Polyphenols are known to enhance endogenic antioxidant system of skin thereby preventing various skin diseases. The biological activity of plant polyphenols is dependent on their physicochemical properties for overcoming the epidermal barriers to reach the specific receptor. Several evidences have reported the vital role polyphenols in mitigating adverse skin problems and reverting back the healthy skin condition. The interest in plant derived skin care products is emerging due to the changing notion of people to shift their focus towards use of plant-based products. The present review draws an attention to uncover the protective role of polyphenols in prevention of various skin problems. Several in vitro and in vivo studies have been summarized that claims the efficacious nature of plant extract having dermatological significance.
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Affiliation(s)
- Navneeta Bharadvaja
- Plant Biotechnology Laboratory, Department of Biotechnology, Delhi Technological University, Delhi, 110042, India.
| | - Shruti Gautam
- Plant Biotechnology Laboratory, Department of Biotechnology, Delhi Technological University, Delhi, 110042, India
| | - Harshita Singh
- Plant Biotechnology Laboratory, Department of Biotechnology, Delhi Technological University, Delhi, 110042, India
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Photoprotective Effects of Soybean Extract against UV-Induced Damage in Human Fibroblast and Hairless Mouse Model. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2019. [DOI: 10.12750/jarb.34.1.20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Back PI, Furtado LR, Nemitz MC, Balestrin LA, Fachel FNS, Gomes HM, Schuh RS, Moreira JC, von Poser GL, Teixeira HF. Skin Permeation and Oxidative Protection Effect of Soybean Isoflavones from Topical Nanoemulsions-a Comparative Study of Extracts and Pure Compounds. AAPS PharmSciTech 2018; 19:3029-3039. [PMID: 30084071 DOI: 10.1208/s12249-018-1133-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/19/2018] [Indexed: 12/12/2022] Open
Abstract
Soybean isoflavone-rich extracts have been considered as promising skin antiaging products due to their antioxidant activity. This study investigates the effect of soybean isoflavone forms on porcine ear skin permeation/retention from topical nanoemulsions and their potential in protecting skin against oxidative damage caused by UVA/UVB light. Soybean non-hydrolyzed (SNHE) and hydrolyzed (SHE) extracts, mainly composed of genistin and genistein, were produced. Nanoemulsions containing SNHE (NESNHE) and SHE (NESHE) were prepared by spontaneous emulsification procedure and yielded monodispersed nanoemulsions. A delay of isoflavone release was observed after extracts incorporation into nanoemulsions when compared to a propyleneglycol dispersion of pure compounds. An increase of isoflavone skin retention from nanoemulsions was also achieved. However, from extracts, a higher amount of genistin (NESNHE) and a lower amount of genistein (NESHE) were detected in the skin in comparison to pure isoflavones. Finally, the protection of porcine ear skin by formulations against UVA/UVB oxidative stress was evaluated. Extract-loaded nanoemulsions offered better skin protection than pure isoflavones. Skin lipids were similarly protected by NESHE and NESNHE, whereas skin proteins were more protected by NESNHE. Overall, nanoemulsions containing isoflavone-rich soybean extracts may be considered a better topical formulation aiming skin protection from UVA/UVB oxidative damage.
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Affiliation(s)
- Patricia Inês Back
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Luisa Rodrigues Furtado
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Marina Cardoso Nemitz
- Curso de Farmácia, Universidade Federal do Rio de Janeiro, Macaé, RJ, 27930-560, Brazil
| | - Lucélia Albarello Balestrin
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Flávia Nathiely Silveira Fachel
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Henrique Mautone Gomes
- Departamento de Bioquímica da Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Roselena Silvestri Schuh
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - José Cláudio Moreira
- Departamento de Bioquímica da Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Gilsane Lino von Poser
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Helder Ferreira Teixeira
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil.
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Radice M, Manfredini S, Ziosi P, Dissette V, Buso P, Fallacara A, Vertuani S. Herbal extracts, lichens and biomolecules as natural photo-protection alternatives to synthetic UV filters. A systematic review. Fitoterapia 2016; 114:144-162. [PMID: 27642040 DOI: 10.1016/j.fitote.2016.09.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/12/2016] [Accepted: 09/14/2016] [Indexed: 10/21/2022]
Abstract
Besides the unquestionable positive effects of solar exposure for human health, UV rays have been widely investigated for toxicology aspects related to excessive UVB and UVA doses, which involve sunburns, skin aging, DNA skin damage and tumorigenesis. At present, synthetic and mineral sunscreens are used to protect against these damages but several natural molecules can provide UV protection, including also synergic effect or enhanced photo stability. Although a large number of herbal extracts and plant origin molecules can deserve potential applications, most of the study reported utilizes different method and different strategies of investigation, making thus difficult to understand the real versus claimed potential. This is possibly one of the reasons why, beside the large body of literature there are no officially approved natural commercial sun-filter but a consistent number of commercially available solar products (sunscreen) on the market that contain herbal derivatives. In this review we have evaluated the papers appeared in the last 15years and we have critically collected the most significant data. Several databases, namely Scifinder, Pubmed, Google Scholar, ISI-Web of Science and Scopus, were used as literature sources; excluding patents and symposium or congress papers. Only articles in the English language have been selected. New formulation, new skin delivery systems, skin penetration enhancers and boosters are most likely the next frontier of investigation in order to better understand the role of whole herbal extracts in exerting their photo protective activity.
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Affiliation(s)
- Matteo Radice
- Universidad Estatal Amazónica, Km 2 ½ Via Napo (paso lateral), Puyo, Pastaza, Ecuador
| | - Stefano Manfredini
- School of Pharmacy and Health Products, Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; Ambrosialab Srl, Via Mortara 171, 44121 Ferrara, Italy.
| | - Paola Ziosi
- Ambrosialab Srl, Via Mortara 171, 44121 Ferrara, Italy
| | - Valeria Dissette
- School of Pharmacy and Health Products, Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Piergiacomo Buso
- School of Pharmacy and Health Products, Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Arianna Fallacara
- School of Pharmacy and Health Products, Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Silvia Vertuani
- School of Pharmacy and Health Products, Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; Ambrosialab Srl, Via Mortara 171, 44121 Ferrara, Italy
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Kim EY, Hong KB, Suh HJ, Choi HS. Protective effects of germinated and fermented soybean extract against tert-butyl hydroperoxide-induced hepatotoxicity in HepG2 cells and in rats. Food Funct 2015; 6:3512-21. [PMID: 26299642 DOI: 10.1039/c5fo00785b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
The aim of the current study is to investigate the antioxidant and hepatoprotective effects of germinated and fermented soybean extract (GFSE) on tert-butyl hydroperoxide (t-BHP)-induced oxidative stress in HepG2 cells and in the rat liver. High performance liquid chromatography (HPLC) analysis showed that genistin (3.40 ± 0.14 μg mg(-1)) was the most abundant isoflavone in the GFSE. Coumestrol (1.00 ± 0.04 μg mg(-1)), daidzin (0.78 ± 0.14 μg mg(-1)), genistein (0.68 ± 0.05 μg mg(-1)), glycitin (0.54 ± 0.02 μg mg(-1)), glycitein (0.41 ± 0.02 μg mg(-1)), and daidzein (0.02 ± 0.0 g mg(-1)) are also contained in decreasing order of content. GFSE significantly inhibited t-BHP-induced reactive oxygen species (ROS) production in HepG2 cells. This GFSE-induced ROS reduction was associated with the down-regulation of nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4), a pro-oxidant enzyme, and the up-regulation of the mRNA levels of antioxidant enzymes, including catalase, superoxide dismutase (SOD), glutathione reductase (GR), and glutathione peroxidase (Gpx) in the rat liver. In addition, increased levels of antioxidant enzyme mRNAs correlated with the enhanced enzymatic activities of SOD, catalase, and glutathione-S-transferase (GST). The antioxidant effect of GFSE was supported by the reduction in the levels of malondialdehyde (MDA), a hydroperoxide, and the serum levels of lactate dehydrogenase (LDH), a biomarker of cell damage, were also lowered by GFSE. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST), which are clinical biomarkers of liver function, were shown to be improved with GFSE administration. The effects of GFSE were attributable to an improvement in liver tissue morphology. Taken together, GFSE protected the liver from t-BHP-induced oxidative stress by regulating ROS-related enzymes. Our results suggest that GFSE might be a hepatoprotective source against oxidative stress.
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Affiliation(s)
- Eun Young Kim
- Department of Food and Nutrition, Korea University, Seoul 130-701, Republic of Korea
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Abstract
The rise in solar ultraviolet radiation on the earth's surface has led to a depletion of stratospheric ozone over recent decades, thus accelerating the need to protect human skin against the harmful effects of UV radiation such as erythema, edema, hyperpigmentation, photoaging, and skin cancer. There are many different ways to protect skin against UV radiation's harmful effects. The most popular way to reduce the amount of UV radiation penetrating the skin is topical application of sunscreen products that contain UV absorbing or reflecting active molecules. Based on their protection mechanism, the active molecules in sunscreens are broadly divided into inorganic and organic agents. Inorganic sunscreens reflect and scatter UV and visible radiation, while organic sunscreens absorb UV radiation and then re-emit energy as heat or light. These synthetic molecules have limited concentration according to regulation concern. Several natural compounds with UV absorption property have been used to substitute for or to reduce the quantity of synthetic sunscreen agents. In addition to UV absorption property, most natural compounds were found to act as antioxidants, anti-inflammatory, and immunomodulatory agents, which provide further protection against the damaging effects of UV radiation exposure. Compounds derived from natural sources have gained considerable attention for use in sunscreen products and have bolstered the market trend toward natural cosmetics. This adds to the importance of there being a wide selection of active molecules in sunscreen formulations. This paper summarizes a number of natural products derived from propolis, plants, algae, and lichens that have shown potential photoprotection properties against UV radiation exposure-induced skin damage.
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Affiliation(s)
- Nisakorn Saewan
- School of Cosmetic Science, Mae Fah Luang University, Muang, Chiangrai, Thailand
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Inhibition of peroxisome proliferator-activated receptor gamma prevents the melanogenesis in murine B16/F10 melanoma cells. BIOMED RESEARCH INTERNATIONAL 2014; 2014:695797. [PMID: 25250328 PMCID: PMC4164518 DOI: 10.1155/2014/695797] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 08/14/2014] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to investigate if PPARγ plays a role in the melanogenesis. B16/F10 cells were divided into five groups: control, melanin stimulating hormone (α-MSH), α-MSH+retinol, α-MSH+GW9662 (PPARγ antagonist), and GW9662. Cells in the control group were cultured in the Dulbecco's modified Eagle's medium (DMEM) for 48 hrs. To initiate the melanogenesis, cells in all α-MSH groups were cultured in medium containing α-MSH (10 nM) for 48 hrs. Cells were treated simultaneously with retinol (5 μM) in the α-MSH+retinol group. Instead of retinol, GW9662 (10 μM) was cocultured in the α-MSH+GW9662 group. Cells in the final group were cultured in the DMEM with GW9662. All the analyses were carried out 48 hours after treatments. The α-MSH was able to increase cell number, melanin production, and the activity of tyrosinase, the limiting enzyme in melanogenesis. These α-MSH-induced changes were prevented either by retinol or by GW9662. Further analyses of the activities of antioxidant enzymes including glutathione, catalase, and the superoxide dismutase (SOD) showed that α-MSH treatment raised the activity of SOD which was dependent on PPARγ level. According to our results, the α-MSH-induced melanogenesis was PPARγ dependent, which also modulated the expression of SOD.
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Isoflavonoid-Rich Flemingia macrophylla Extract Attenuates UVB-Induced Skin Damage by Scavenging Reactive Oxygen Species and Inhibiting MAP Kinase and MMP Expression. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:696879. [PMID: 23935672 PMCID: PMC3713360 DOI: 10.1155/2013/696879] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 06/03/2013] [Indexed: 11/22/2022]
Abstract
In this study, we investigated the antioxidant activity and anti-photoaging properties of an extract of Flemingia macrophylla, a plant rich in isoflavonoid content. Pretreatment of fibroblasts with Flemingia macrophylla extract (FME) inhibited elastase activity, promoted the protein expression of type I procollagen, and attenuated the phosphorylation of mitogen-activated protein (MAP) kinase and the protein expression of matrix-metalloproteinase- (MMP-) 1, 3, and 9. The IC50 values were 2.1 μg/mL for DPPH radical scavenging ability, 366.8 μg/mL for superoxide anion scavenging ability, 178.9 μg/mL for hydrogen peroxide scavenging ability, and 230.9 μg/mL for hydroxyl radical scavenging ability. Also, exposure of erythrocytes to various concentrations of FME (50–500 μg/mL) resulted in a dose- and time-dependent inhibition of AAPH-induced hemolysis. In human fibroblasts, FME at 10 μg/mL was shown to be a potent scavenger of UV-induced reactive oxygen species (ROS). The antioxidant and anti-photoaging properties of FME make it an ideal anti-intrinsic aging and anti-photoaging agent.
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Wang Q, Ge X, Tian X, Zhang Y, Zhang J, Zhang P. Soy isoflavone: The multipurpose phytochemical (Review). Biomed Rep 2013; 1:697-701. [PMID: 24649012 DOI: 10.3892/br.2013.129] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 05/21/2013] [Indexed: 01/17/2023] Open
Abstract
Soy isoflavones are compounds found in soybean and soybean products. They have been reported to possess numerous physiological properties, such as antitumor, anti-menopausal (female) osteoporosis and anti-aging. They have also been reported to improve learning and memory skills in menopausal women and aid in the prevention and treatment of heart disease, diabetes and Kawasaki disease (KD). In this review, the effects of soy isoflavones on various diseases were analyzed. Based on the analysis, it was hypothesized that the function of soybean isoflavones in the prevention and treatment of various diseases results from their phytoestrogen and antioxidant properties. However, due to their phytoestrogen properties, it is recommended that the risks of soy isoflavone intake as food and/or medical treatment be further evaluated.
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Affiliation(s)
- Qinglu Wang
- Key Laboratory of Biomedical Engineering and Technology of Shandong High School, Shandong Wanjie Medical College, Zibo, Shandong 255213, P.R. China
| | - Xiaoyue Ge
- Key Laboratory of Biomedical Engineering and Technology of Shandong High School, Shandong Wanjie Medical College, Zibo, Shandong 255213, P.R. China
| | - Xuewen Tian
- Shandong Research Center of Sports Science, Jinan, Shandong 250102, P.R. China
| | - Yujun Zhang
- Key Laboratory of Biomedical Engineering and Technology of Shandong High School, Shandong Wanjie Medical College, Zibo, Shandong 255213, P.R. China
| | - Jie Zhang
- Key Laboratory of Biomedical Engineering and Technology of Shandong High School, Shandong Wanjie Medical College, Zibo, Shandong 255213, P.R. China
| | - Pingping Zhang
- Key Laboratory of Biomedical Engineering and Technology of Shandong High School, Shandong Wanjie Medical College, Zibo, Shandong 255213, P.R. China
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Huang CC, Hsu BY, Wu NL, Tsui WH, Lin TJ, Su CC, Hung CF. Anti-photoaging effects of soy isoflavone extract (aglycone and acetylglucoside form) from soybean cake. Int J Mol Sci 2010; 11:4782-95. [PMID: 21614173 PMCID: PMC3100816 DOI: 10.3390/ijms11124782] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Revised: 11/16/2010] [Accepted: 11/17/2010] [Indexed: 11/16/2022] Open
Abstract
Soy isoflavones, found in soybean and soybean products, have been reported to possess many physiological activities such as antioxidant activity, inhibition of cancer cell proliferation, reduction of cardiovascular risk, prevention of osteoporosis and alleviation of postmenopausal syndrome. In our previous study, soy isoflavone extract ISO-1 (containing 12 soy isoflavones) from soybean cake was demonstrated to prevent skin damage caused by UVB exposure. In this study, soy isoflavone extract from soybean cake was further purified and evaluated for the protective effects on UVB-induced damage. The results revealed that Fraction 3, which contains the aglycone group (daidzein, genistein and glycitein) and acetylglucoside group (acetyldaidzin, acetylgenistin and acetylglycitin) of soy isoflavones, could inhibit UVB-induced death of human keratinocytes and reduce the level of desquamation, transepidermal water loss (TEWL), erythema and epidermal thickness in mouse skin. Furthermore, topical application of Fraction 3 increased the activity of catalase and suppressed cyclooxygenase-2 (COX-2) and proliferating cell nuclear antigen (PCNA) expression in mice exposed to UVB. In addition, in comparison with ISO-1 and genistein, the Fraction 3 possessed much greater protective effects on both UVB-induced oxidative stress and keratinocyte death than other fractions. Therefore, the soy isoflavone extract Fraction 3 from soybean cake is a desirable anti-photoaging agent for skin care.
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Affiliation(s)
- Chieh-Chen Huang
- School of Medicine, Fu Jen Catholic University, Taipei, Taiwan; E-Mail:
- Department of Dermatology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan; E-Mail:
| | - Bo-Yang Hsu
- Department of Food Science, Fu Jen Catholic University, Taipei, Taiwan; E-Mail:
| | - Nan-Lin Wu
- Department of Dermatology, Mackay Memorial Hospital, Hsinchu, Taiwan; E-Mail:
- Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Wen-Huei Tsui
- Department of Life Science, Fu Jen Catholic University, Taipei, Taiwan; E-Mail:
| | - Tzu-Ju Lin
- Graduate Institute of Basic Medicine, Fu-Jen Catholic University, Taipei, Taiwan; E-Mail:
| | - Ching-Chieh Su
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Cardinal Tien Hospital, Taipei, Taiwan; E-Mail:
| | - Chi-Feng Hung
- School of Medicine, Fu Jen Catholic University, Taipei, Taiwan; E-Mail:
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Chiu TM, Huang CC, Lin TJ, Fang JY, Wu NL, Hung CF. In vitro and in vivo anti-photoaging effects of an isoflavone extract from soybean cake. JOURNAL OF ETHNOPHARMACOLOGY 2009; 126:108-13. [PMID: 19679176 DOI: 10.1016/j.jep.2009.07.039] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Revised: 06/22/2009] [Accepted: 07/31/2009] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Soy has been used in traditional Chinese medicine for thousands of years for its health and nutritional benefits, as well as to treat and care for the skin. Advanced skin care research has shown that soy isoflavone and genistein are effective in reducing damage to the skin from the sun. AIM OF THE STUDY To study the protective effects of isoflavone extract from soybean cake against the UVB-induced skin damage. MATERIALS AND METHODS The in vitro effects and possible mechanisms of soybean extract on UVB protection were determined in HaCaT cells. In the in vivo study, ICR-Foxn/(nu) mice were irradiated with UVB. The epidermal thickness, catalase and the expressions of cyclooxygenase-2 (COX-2) and proliferating cell nuclear antigen (PCNA) were detected to evaluate the antioxidant and anti-inflammatory activities of the isoflavone extract. RESULTS Our in vitro studies showed that UVB-induced HaCaT cell death and the phosphorylation of p38, JNK, and ERK1/2 decreased in the presence of isoflavone extract. In the in vivo studies, we found that the topical application of isoflavone extract before UVB irritation decreased the epidermal thickness and the expressions of COX-2 and PCNA and increased catalase concentration. These results showed anti-photoaging effect of isoflavone extract from soybean cake involved the inhibition of UVB-induced apoptosis and inflammation. CONCLUSIONS It is shown that isoflavone extract from soybean cake may be functional cosmeceutical candidate for skin photoaging.
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Affiliation(s)
- Tsu-Man Chiu
- Department of Dermatology, Changhua Christian Hospital, Changhua Hsien, Taiwan, ROC
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Huang JH, Huang CC, Fang JY, Yang C, Chan CM, Wu NL, Kang SW, Hung CF. Protective effects of myricetin against ultraviolet-B-induced damage in human keratinocytes. Toxicol In Vitro 2009; 24:21-8. [PMID: 19778600 DOI: 10.1016/j.tiv.2009.09.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2008] [Revised: 03/28/2009] [Accepted: 09/18/2009] [Indexed: 11/16/2022]
Abstract
Myricetin is a flavonoid similar to quercetin, which is commonly found in natural foods such as berries, vegetables, teas, wine, and herbs. It is considered to be an antioxidant which is capable of quenching photoaging-causing free radicals within the skin. In this study, we investigated the mechanisms underlying protective effect of myricetin on ultraviolet-B (UVB)-induced damage to keratinocytes. We found that myricetin concentration-dependently attenuated UVB-induced keratinocyte death as determined by a cell viability assay. Pretreatment with myricetin also reduced the UVB-induced malondialdehyde level. Moreover, UVB-induced H(2)O(2) generation in keratinocytes was inhibited by myricetin according to flow cytometry, suggesting that myricetin can act as a free radical scavenger when keratinocytes experience photodamage. Furthermore, UVB-induced activation of c-jun-NH(2) terminal kinase (JNK) in keratinocytes was inhibited by myricetin. UVB-induced pre-G(1) phase arrest leading to apoptotic changes in keratinocytes was blocked by myricetin. Taken together, the protective mechanisms of keratinocyte by myricetin against UVB-induced photodamage occur by the inhibition of UVB-induced intracellular hydrogen peroxide production, lipid peroxidation and JNK activation. Therefore, myricetin is suitable for further development as an anti-aging agent for skin care.
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Affiliation(s)
- Jheng-Hua Huang
- School of Medicine, Fu-Jen Catholic University, Taipei Hsien, Taiwan
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