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Götz KP, Chmielewski FM. Metabolites That Confirm Induction and Release of Dormancy Phases in Sweet Cherry Buds. Metabolites 2023; 13:metabo13020231. [PMID: 36837849 PMCID: PMC9961560 DOI: 10.3390/metabo13020231] [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: 01/09/2023] [Revised: 01/18/2023] [Accepted: 01/25/2023] [Indexed: 02/09/2023] Open
Abstract
Here we report on metabolites found in a targeted profiling of 'Summit' flower buds for nine years, which could be indicators for the timing of endodormancy release (t1) and beginning of ontogenetic development (t1*). Investigated metabolites included chrysin, arabonic acid, pentose acid, sucrose, abscisic acid (ABA), and abscisic acid glucose ester (ABA-GE). Chrysin and water content showed an almost parallel course between leaf fall and t1*. After 'swollen bud', water content raised from ~60 to ~80% at open cluster, while chrysin content decreased and lost its function as an acetylcholinesterase inhibitor. Both parameters can be suitable indicators for t1*. Arabonic acid showed a clear increase after t1*. Pentose acid would be a suitable metabolite to identify t1 and t1*, but would not allow describing the ecodormancy phase, because of its continuously low value during this time. Sucrose reached a maximum during ecodormancy and showed a significant correlation with air temperature, which confirms its cryoprotective role in this phase. The ABA content showed maximum values during endodormancy and decreased during ecodormancy, reaching 50% of its content t1 at t1*. It appears to be the key metabolite to define the ecodormancy phase. The ABA-GE was present at all stages and phases and was much higher than the ABA content and is a readily available storage pool in cherry buds.
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Miglitol, an Oral Antidiabetic Drug, Downregulates Melanogenesis in B16F10 Melanoma Cells through the PKA, MAPK, and GSK3β/β-Catenin Signaling Pathways. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010115. [PMID: 36615308 PMCID: PMC9822252 DOI: 10.3390/molecules28010115] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
Hyperpigmentation is a common condition that causes darker spots or patches on the skin, which often look brown, black, gray, red, or pink. This results in unresolved psychological impact due to high anxiety, depression, and somatoform disorder. We aimed to repurpose an antidiabetic drug, miglitol, as an effective compound against hyperpigmentation when applied as a cosmeceutical agent. The present study investigated the antimelanogenic effects of miglitol and the trehalase inhibitor validamycin A. Miglitol in isolation exhibited no cytotoxicity and significantly reduced the melanin production and intracellular tyrosinase activity in B16F10 melanoma cells. The Western blotting results showed that miglitol reduces the expression of melanogenic regulatory factors, including tyrosinase, tyrosinase-related protein (TRP)-1, TRP-2, and microphthalmia-associated transcription factor (MITF). Mechanistically, miglitol appears to suppress melanin synthesis through cAMP-dependent protein kinase (PKA)-dependent downregulation of MITF, a master transcription factor in melanogenesis. The antimelanogenic effects of miglitol was mediated by downregulation of the p38 signaling pathway and upregulation of extracellular signal-regulated kinase (ERK). Moreover, miglitol decreases P-GSK3β and β-catenin levels compared to those in the untreated group. However, miglitol activated P-β-catenin expression compared to that in the untreated group. Finally, we tested the potential of miglitol in topical application through primary human skin irritation tests on the normal skin (upper back) of 33 volunteers. In these assays, miglitol (125 and 250 μM) did not induce any adverse reactions. Taken together, these findings suggest that the regulation of melanogenesis by miglitol may be mediated by the PKA, MAPK, and GSK3β/β-Catenin signaling pathways and that miglitol might provide new insights into drug repurposing for the treatment of hyperpigmentation symptoms.
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Bahraman AG, Jamshidzadeh A, Keshavarzi M, Arabnezhad MR, Mohammadi H, Mohammadi-Bardbori A. α-Melanocyte-Stimulating Hormone Triggers Melanogenesis Via Activation of the Aryl Hydrocarbon Receptor Pathway in B16F10 Mouse Melanoma Cells. Int J Toxicol 2021; 40:153-160. [PMID: 33438493 DOI: 10.1177/1091581820987548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Melanin is a group of natural pigments that determines the human skin color and provides fundamental protection against the harmful impacts of physical and chemical stimuli. The aim of this study was to establish the regulatory role of aryl hydrocarbon receptor (AhR) in α-melanocyte-stimulating hormone (α-MSH) induced melanogenesis. In the present study, following knockdown of AhR, murine B16F10 cells were treated with α-MSH (200 nM) and tyrosinase activities, cellular melanin content, mRNA levels of several important genes involved in melanogenesis including AhR, CTNNB1, TYR2, and microphthalmia-associated transcription factor (MITF) were measured as endpoints. Exposure to α-MSH led to elevated expression of AhR, CTNNB1, MITF, and TYR in accordance with increased tyrosinase enzyme activity as well as a significant rise in the total melanin content. Our results suggest that AhR plays a regulatory role in α-MSH-stimulated melanogenesis.
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Affiliation(s)
- Ali Ghaffarian Bahraman
- Department of Pharmacology and Toxicology, School of Pharmacy, 48435Shiraz University of Medical Sciences, Shiraz, Fars, Iran.,Occupational Environment Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Akram Jamshidzadeh
- Department of Pharmacology and Toxicology, School of Pharmacy, 48435Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | - Majid Keshavarzi
- Department of Pharmacology and Toxicology, School of Pharmacy, 48435Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | - Mohammad-Reza Arabnezhad
- Department of Pharmacology and Toxicology, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamidreza Mohammadi
- Department of Pharmacology and Toxicology, School of Pharmacy, 48435Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | - Afshin Mohammadi-Bardbori
- Department of Pharmacology and Toxicology, School of Pharmacy, 48435Shiraz University of Medical Sciences, Shiraz, Fars, Iran
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Bito T, Koseki K, Asano R, Ueda N, Yamada T, Yabuta Y, Ichiyanagi T, Ishihara A, Watanabe K, Watanabe F. 5-hydroxymethyl-2-furaldehyde purified from Japanese pear ( Pyrus pyrifolia Nakai cv. Nijisseiki) juice concentrate inhibits melanogenesis in B16 mouse melanoma cells. Biosci Biotechnol Biochem 2020; 84:2374-2384. [PMID: 32674671 DOI: 10.1080/09168451.2020.1792762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Pear juice concentrate prepared by boiling Japanese pear (Pyrus pyrifolia Nakai cv. Nijisseiki) juice can significantly inhibit the activity of tyrosinase, a key enzyme in melanin synthesis in human skin. Using the ethanol extract of pear juice concentrate, we homogeneously purified an active compound that was identified as 5-hydroxymethyl-2-furaldehyde (5-HMF) through 1H- and 13C-NMR and mass spectroscopy. We observed that 5-HMF inhibited the monophenolase and diphenolase activities of mushroom tyrosinase as a mixed-type inhibitor (K i values of 3.81 and 3.70 mmol/L, respectively). In B16 mouse melanoma cells, treatment with 170 µmol/L of 5-HMF significantly reduced α-melanocyte-stimulated melanin synthesis by suppressing the cyclic adenosine monophosphate-dependent signaling pathway involved in melanogenesis. The results of our study indicated that 5-HMF can be potentially used as a skin-lightening agent in the cosmetic industry. Abbreviations: AC: adenylate cyclase; CREB: cAMP response element-binding protein; dhFAME: S-(-)-10,11-Dihydroxyfarnesoic acid methyl ester; DMEM: dulbecco's modified eagle medium; l-DOPA: 3-(3,4-Dihydroxyphenyl)- l-alanine; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; HEPES: 4-(2-Hydroxyethyl)-1-piperazine ethane sulfonic acid; 5-HMF: 5-Hydroxymethyl-2-furaldehyde; MITF: microphthalmia-associated transcription factor; α-MSH: α-Melanocyte-stimulating hormone; PKA: protein kinase A; PVDF: polyvinylidene difluoride; SDS: sodium dodecyl sulfate; TRP1: tyrosinase-related protein 1; TRP2: tyrosinase-related protein 2.
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Affiliation(s)
- Tomohiro Bito
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
| | - Kyohei Koseki
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University , Tottori, Japan
| | - Ryota Asano
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University , Tottori, Japan
| | - Nakaba Ueda
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
| | - Takuhiro Yamada
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
| | - Yukinori Yabuta
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
| | - Tsuyoshi Ichiyanagi
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
| | - Atsushi Ishihara
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
| | - Kishi Watanabe
- Department of Quality Control, Yawata Corporation , Yonago, Tottori, Japan
| | - Fumio Watanabe
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University , Tottori, Japan
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Sawant O, Khan T. Management of periorbital hyperpigmentation: An overview of nature-based agents and alternative approaches. Dermatol Ther 2020; 33:e13717. [PMID: 32472659 DOI: 10.1111/dth.13717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/17/2020] [Accepted: 05/23/2020] [Indexed: 11/30/2022]
Abstract
Periorbital hyperpigmentation (POH) is a common dermatological condition that presents as dark periorbital area beneath the lower eyelids, and it is commonly found in females belonging to the age group of 16 to 45 years. The data presented in this review include studies conducted on patients with a clinical/histological diagnosis of POH or melasma. Many diverse topical depigmenting agents comprising an array of naturally obtained actives such as arabinoxylans, α-arbutin, asiaticoside, azelaic acid, beta-carotene, boswellic acid, caffeine, chrysin, curcumin, cyanidin-3-glucoside, d-glucoronic acid, dihydrochalcone, dipalmitoyl-hydroxyprolene, fucoxanthin, genistein, glabridin, b-glucogallin, hyaluronic acid, lactic acid, lycopene, niacinamide, pycnogenol, retinol, salidroside, and xymenynic acid demonstrated significant benefits in the management of POH. An exhaustive literature search revealed that other techniques such as blepharoplasty, carboxytherapy, calcium hydroxylapatite fillers, tear trough implant, Q-switched ruby laser, medicated tattoo, fat transfer, micro-needling, chemical peels, nitrogen plasma skin regeneration, intense pulsed light, and radiofrequency have been evaluated and reported to be beneficial in the treatment of POH. The use of topical depigmenting agents is the most widely reported method in the clinical management of POH. Of these, α-arbutin, caffeine, cyanidin-3-glucoside, and dihydrochalcone are reported to exhibit significant benefits. Combination products containing a blend of actives are reported to be better than single active containing products. This review aims to provide a comprehensive perspective on the role of several topical actives in the modulation of melanin and tyrosinase biosynthesis pathway involved in the complex pathophysiology of POH. It also presents the advantages of combination products and other alternative therapies used in the management of POH.
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Affiliation(s)
- Omkar Sawant
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, Maharashtra, India
| | - Tabassum Khan
- Department of Pharmaceutical Chemistry and Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, Maharashtra, India
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Liu XY, Xiao YK, Hwang E, Haeng JJ, Yi TH. Antiphotoaging and Antimelanogenesis Properties of Ginsenoside C-Y, a Ginsenoside Rb2 Metabolite from American Ginseng PDD-ginsenoside. Photochem Photobiol 2019; 95:1412-1423. [PMID: 31074886 DOI: 10.1111/php.13116] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 05/03/2019] [Indexed: 12/26/2022]
Abstract
Ginsenosides are compounds responsible for the primary pharmacological effects of American ginseng. Compound-Y (C-Y) is a minor ginsenoside and a metabolite of Panax ginseng. In this study, we investigated the protective effect of ginsenoside UVB-irradiated NHDFs and its potential for use as an antihyperpigmentation agent through ginsenoside C-Y as a functional food and cosmetic ingredient. Ginsenoside C-Y is a natural antioxidant isolated from the American ginseng PDD-ginsenoside. Our data showed that ginsenoside C-Y block UVB-exposed ROS, restrict MMP-1 production and promote procollagen type I synthesis. Interestingly, ginsenoside C-Y suppresses UVB-exposed VEGF, and TNF-α secretion, could be related with NFAT signal path. Ginsenoside C-Y has exhibited photoaging effects by increasing TGF-β1 level, fortifying Nrf2 nuclear translocation and restricting AP-1 and MAPK phosphorylation. Assessment of the melanogenic response indicated that ginsenoside C-Y inhibited melanin secretion and tyrosinase activity and decreased melanin content in Melan-a and zebrafish embryos. These results suggest that ginsenoside C-Y can be used as a potential botanical agent to protect premature skin from UVB-induced photodamage and prevent skin hyperpigmentation.
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Affiliation(s)
- Xiao-Yi Liu
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Korea
| | - Yong-Kun Xiao
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Korea
| | - Eunson Hwang
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Korea
| | | | - Tae-Hoo Yi
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, Korea
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Ha JH, Park SN. Mechanism underlying inhibitory effect of six dicaffeoylquinic acid isomers on melanogenesis and the computational molecular modeling studies. Bioorg Med Chem 2018; 26:4201-4208. [PMID: 30030001 DOI: 10.1016/j.bmc.2018.07.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/01/2018] [Accepted: 07/07/2018] [Indexed: 12/27/2022]
Abstract
Dicaffeoylquinic acid (DCQA), which contain 2 caffeic acids and a quinic acid, is 6 isomeric compounds (1,3-, 1,4-, 1,5-, 3,4-, 3,5-, and 4,5-DCQA). In this study, the mechanism underlying the inhibitory effect of DCQA isomers on melanogenesis in B16F1 murine melanoma cells stimulated by melanocyte stimulating hormone (α-MSH) was evaluated. DCQA isomers showed inhibitory effects on melanogenesis in α-MSH-stimulated B16F1 cells. Furthermore, the anti-melanogenesis activities of 1,5-DCQA and 4,5-DCQA were 61% and 84%, respectively, which were greater than that of arbutin (35%). For cell-free tyrosinase, 3,4-DCQA and 4,5-DCQA indicated high inhibitory effects, similar to the activity to arbutin (35%) at 25 μM. DCQA isomers inhibited the melanogenic enzymes including tyrosinase and dopachrome tautomerase (DCT) on α-MSH-stimulated B16F1 cells. Interestingly, 4,5-DCQA, the most potent inhibitor of melanogenesis among the six DCQA isomers, significantly downregulated the expression of microphthalmia-associated transcription factor (MITF), tyrosinase-related protein 1 (TRP1) containing tyrosinase, and DCT. In particular, the inhibitory mechanism of 4,5-DCQA on MITF expression was elucidated, revealing that 4,5-DCQA inhibits the phosphorylation of cAMP response element-binding protein (CREB) by attenuating cAMP generation during melanogenesis. A molecular docking study was conducted to elucidate the inhibitory mechanism of 4,5-DCQA on cAMP production. DCQA isomers dock to the residues of adenylyl cyclase with a distance of <3 Å, except for 1,3-DCQA. Especially, 4,5-DCQA showed Full Fitness of -1304.68 kcal/mol and △G of -8.33 kcal/mol, as well as H-bonding with adenylyl cyclase at ILE953 and LYS930 residues. In conclusion, DCQA isomers have different effects on melanogenesis depending on their structure. Especially, 4,5-DCQA has depigmentation activity through the inhibitory effect on cellular tyrosinase directly and binding effect on adenylyl cyclase, resulting in the downregulation of MITF protein, thereby reducing the expression of melanogenic enzymes.
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Affiliation(s)
- Ji Hoon Ha
- Department of Fine Chemistry, Cosmetic R&D Center, College of Energy and Biotechnology, Seoul National University of Science and Technology 232, Gongneung-ro, Nowon-gu, Seoul 139-743, Republic of Korea
| | - Soo Nam Park
- Department of Fine Chemistry, Cosmetic R&D Center, College of Energy and Biotechnology, Seoul National University of Science and Technology 232, Gongneung-ro, Nowon-gu, Seoul 139-743, Republic of Korea.
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Pillaiyar T, Namasivayam V, Manickam M, Jung SH. Inhibitors of Melanogenesis: An Updated Review. J Med Chem 2018; 61:7395-7418. [PMID: 29763564 DOI: 10.1021/acs.jmedchem.7b00967] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Melanins are pigment molecules that determine the skin, eye, and hair color of the human subject to its amount, quality, and distribution. Melanocytes synthesize melanin and provide epidermal protection from various stimuli, such as harmful ultraviolet radiation, through the complex process called melanogenesis. However, serious dermatological problems occur when there is excessive production of melanin in different parts of the human body. These include freckles, melasma, senile lentigo, pigmented acne scars, and cancer. Therefore, controlling the production of melanin is an important approach for the treatment of pigmentation related disorderes. In this Perspective, we focus on the inhibitors of melanogenesis that directly/indirectly target a key enzyme tyrosinase as well as its associated signaling pathways.
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Affiliation(s)
- Thanigaimalai Pillaiyar
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I , University of Bonn , An der Immenburg 4 , D-53121 Bonn , Germany
| | - Vigneshwaran Namasivayam
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I , University of Bonn , An der Immenburg 4 , D-53121 Bonn , Germany
| | - Manoj Manickam
- College of Pharmacy and Institute of Drug Research and Development , Chungnam National University , Daejeon 34134 , Korea
| | - Sang-Hun Jung
- College of Pharmacy and Institute of Drug Research and Development , Chungnam National University , Daejeon 34134 , Korea
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Antimelanogenic Effect of an Oroxylum indicum Seed Extract by Suppression of MITF Expression through Activation of MAPK Signaling Protein. Int J Mol Sci 2018. [PMID: 29518952 PMCID: PMC5877621 DOI: 10.3390/ijms19030760] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
In this study, the antimelanogenic effect of an ethyl acetate fraction of Oroxylum indicum Vent. seeds (OISEA) and its underlying mechanisms in melan-a cells were investigated. Antimelanogenesis activity was confirmed by assessing inhibition of tyrosinase activity and melanin content in the cells. Both transcriptional and translational expression of microphthalmia-associated transcription factor (MITF), tyrosinase, and tyrosinase related protein-1 and 2 (TYRP-1 and TYRP-2), were also examined. The results depicted that pretreatment of OISEA significantly inhibits not only tyrosinase activity, but melanin production and intracellular tyrosinase activity. By repressing the expression of tyrosinase, TYRP-1, TYRP-2, and MITF, OISEA interrupted melanin production. Additionally, OISEA interfered with the phosphorylation of p38, extracellular signal-regulated kinase 1/2 (ERK1/2), and c-Jun N-terminal kinase (JNK), with the reversal of OISEA-induced melanogenesis inhibition after treatment with the specific inhibitors SB239063, U0126, and SP600125. Overall, these results suggest that OISEA can stimulate p38, ERK1/2, JNK phosphorylation, and subsequent suppression of melanin, leading to the inhibition of melanogenic enzymes and melanin production, possibly owing to the presence of polyphenolic compounds.
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Bito T, Koseki K, Moriguchi T, Sasaki Y, Yabuta Y, Ichiyanagi T, Watanabe F. Cycloalliin Inhibits Melanin Biosynthesis in B16 Mouse Melanoma Cells. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2018. [DOI: 10.3136/fstr.24.627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Tomohiro Bito
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
| | - Kyohei Koseki
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
| | - Tomohiro Moriguchi
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
| | - Yu Sasaki
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
| | - Yukinori Yabuta
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
| | - Tsuyoshi Ichiyanagi
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
| | - Fumio Watanabe
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University
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Potent anti-melanogenic activity and favorable toxicity profile of selected 4-phenyl hydroxycoumarins in the zebrafish model and the computational molecular modeling studies. Bioorg Med Chem 2017; 25:6286-6296. [PMID: 29042224 DOI: 10.1016/j.bmc.2017.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/13/2017] [Accepted: 09/15/2017] [Indexed: 12/16/2022]
Abstract
7-Hydroxy-4-phenylcoumarin (7C) and 5,7-dihydroxy-4-phenylcoumarin (5,7C) have been evaluated as potential anti-melanogenic agents in the zebrafish (Danio rerio) model in comparison to commercially utilized depigmenting agents hydroquinone and kojic acid. 7C and 5,7C decreased the body pigmentation at 5 µg/mL, while did not affect the embryos development and survival at doses ≤50 µg/mL and ≤25 µg/mL. Unlike hydroquinone and kojic acid, 4-phenyl hydroxycoumarins were no melanocytotoxic, showed no cardiotoxic side effects, neither caused neutropenia in zebrafish embryos, suggesting these compounds may present novel skin-whitening agents with improved pharmacological properties. Inhibition of tyrosinase was identified as the possible mode of anti-melanogenic action. Molecular docking studies using the homology model of human tyrosinase as well as adenylate cyclase revealed excellent correlation with experimentally obtained results.
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Sibanda T, Selvarajan R, Tekere M. Synthetic extreme environments: overlooked sources of potential biotechnologically relevant microorganisms. Microb Biotechnol 2017; 10:570-585. [PMID: 28224723 PMCID: PMC5404200 DOI: 10.1111/1751-7915.12602] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/02/2016] [Accepted: 12/15/2016] [Indexed: 12/11/2022] Open
Abstract
Synthetic extreme environments like carwash effluent tanks and drains are potential sources of biotechnologically important microorganisms and molecules which have, however, remained unexplored. Using culture‐ and molecular‐based methods, a total of 17 bacterial isolates belonging to the genera Shewanella, Proteus, Paenibacillus, Enterobacter and Citrobacter, Aeromonas, Pseudomonas and Pantoea were identified. Hydrocarbon utilization and enzyme production screening assays showed that Aeromonas sp. CAC11, Paenibacillus sp. CAC12 and Paenibacillus sp. CAC13 and Citrobacter sp. PCW7 were able to degrade benzanthracene, naphthalene and diesel oil, Paenibacillus sp. CAC12 and Paenibacillus sp. CAC13 could produce cellulase enzyme, while Proteus sp. BPS2, Pseudomonas sp. SAS8 and Proteus sp. CAL3 could produce lipase. GC‐MS analysis of bacterial secondary metabolites resulted in identification of 107 different compounds produced by Proteus sp. BPS2, Paenibacillus sp. CAC12, Pseudomonas sp. SAS8, Proteus sp. CAL3 and Paenibacillus sp. CAC13. Most of the compounds identified by both GC‐MS and LC‐MS have previously been determined to have antibacterial, antifungal and/or anticancer properties. Further, microbial metabolites which have previously been known to be produced only by plants or microorganisms found in natural extreme environments were also identified in this study. This research has revealed the immense bioresource potential of microorganisms inhabiting synthetic extreme environments.
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Affiliation(s)
- Timothy Sibanda
- Department of Environmental Sciences, College of Agriculture and Environmental Science, UNISA Florida Campus, PO Box X6, Florida, 1709, South Africa
| | - Ramganesh Selvarajan
- Department of Environmental Sciences, College of Agriculture and Environmental Science, UNISA Florida Campus, PO Box X6, Florida, 1709, South Africa
| | - Memory Tekere
- Department of Environmental Sciences, College of Agriculture and Environmental Science, UNISA Florida Campus, PO Box X6, Florida, 1709, South Africa
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Zhu L, Lu Y, Yu WG, Zhao X, Lu YH. Anti-photoageing and anti-melanogenesis activities of chrysin. PHARMACEUTICAL BIOLOGY 2016; 54:2692-2700. [PMID: 27226145 DOI: 10.1080/13880209.2016.1179334] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Melanin plays an important role in preventing skin photoageing by blocking ultraviolet B (UVB). However, East Asian women prefer light and fair skin, therefore they want to keep their skin from photoageing and at the same time reduce the melanin in their skin. Chrysin is a kind of natural flavonoid with luxurious biological activities, which has a very promising effect on achieving this goal. OBJECTIVE To elucidate the effects and mechanisms of chrysin on photoageing and melanogenesis. MATERIALS AND METHODS Human dermal fibroblasts (HDF) and B16 murine melanoma cells were incubated with chrysin (0-25 μM) for 48 h. Anti-photoageing activity was examined in HDF by assessment of synthesis/degradation of collagen I, antioxidative and antisenescent activities through ELISA and colorimetric method. Anti-melanogenesis activity was tested by assessment of melanin, tyrosinase (TYR), melanogenic proteins inhibition activities in B16 cells using colorimetric and ELISA method. RESULTS Chrysin increased collagen I secretion (50-121.54% at 6.25-25 μM) and chrysin showed anti-photoageing activity by decreasing the degradation of collagen I, repairing oxidation damage and reducing the rate of HDF senescence. Furthermore, chrysin exhibited inhibitory activities with 3.00-20.35% reduction of melanin content at 6.25-25 μM, and inhibited melanin synthesis through the inhibition of TYR activity and the suppression of melanogenic proteins (TYR, TYR-related protein-1/2 and microphthalmia-associated transcription factor) expressions. DISCUSSION AND CONCLUSION Chrysin may have potential for developing a functional cosmetic agent because of its anti-photoageing and anti-melanogenesis activities.
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Affiliation(s)
- Li Zhu
- a State Key Laboratory of Bioreactor Engineering , East China University of Science and Technology , Shanghai , P.R. China
- b Shanghai Institute of Biomanufacturing Technology , Shanghai , P.R. China
| | - Yue Lu
- a State Key Laboratory of Bioreactor Engineering , East China University of Science and Technology , Shanghai , P.R. China
- b Shanghai Institute of Biomanufacturing Technology , Shanghai , P.R. China
| | - Wan-Guo Yu
- a State Key Laboratory of Bioreactor Engineering , East China University of Science and Technology , Shanghai , P.R. China
- b Shanghai Institute of Biomanufacturing Technology , Shanghai , P.R. China
| | - Xin Zhao
- c Shanghai Inoherb Cosmetics Co. Ltd. , Shanghai , P.R. China
| | - Yan-Hua Lu
- a State Key Laboratory of Bioreactor Engineering , East China University of Science and Technology , Shanghai , P.R. China
- b Shanghai Institute of Biomanufacturing Technology , Shanghai , P.R. China
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Gheibi N, Hosseini Zavareh S, Rezaei Behbahani GR, Haghbeen K, Sirati-sabet M, Ilghari D, Goodarzvand Chegini K. Comprehensive kinetic and structural studies of different flavonoids inhibiting diphenolase activity of mushroom tyrosinase. APPL BIOCHEM MICRO+ 2016. [DOI: 10.1134/s0003683816030054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Campos PM, Prudente AS, Horinouchi CDDS, Cechinel-Filho V, Fávero GM, Cabrini DA, Otuki MF. Inhibitory effect of GB-2a (I3-naringenin-II8-eriodictyol) on melanogenesis. JOURNAL OF ETHNOPHARMACOLOGY 2015; 174:224-229. [PMID: 26297636 DOI: 10.1016/j.jep.2015.08.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 07/26/2015] [Accepted: 08/18/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE GB-2a is a I3-naringenin-II8-eriodictyol compound isolated from Garcinia gardneriana (Planchon & Triana) Zappi, a plant used in folk medicine for the treatment of skin disorders. AIM OF STUDY In the search for new depigmenting agents, this study was carried out to investigate the in vitro effects of GB-2a isolated from G. gardneriana (Planchon & Triana) Zappi in B16F10 melanoma cells. MATERIALS AND METHODS The effects of GB-2a were evaluated through determination of melanin biosynthesis in B16F10 melanoma cells in comparison with the reference drug kojic acid (500µM). In parallel, the GB-2a effect was assessed in a cell viability assay. Mushroom tyrosinase activity assays were conducted to verify the effect of this enzyme. In order to ascertain the nature of enzyme inhibition on tyrosinase, kinetics analysis of the GB-2a was performed with L-tyrosine and L-3,4-dihydroxyphenylalanine (L-DOPA) substrates. RESULTS The results showed that GB-2a biflavonoid significantly inhibited the melanin content, without reducing cell viability. GB-2a also showed a strong antityrosinase activity in the mushroom tyrosinase assay. GB-2a inhibited the tyrosinase activity, exerting a mixed inhibition. For the L-tyrosine substrate the inhibition was in non-competitive mode and for L-DOPA it was in uncompetitive mode. CONCLUSION GB-2a biflavonoid promoted inhibition on tyrosinase activity and reduced melanin biosynthesis in B16F10 cells, which suggests great potential for medical and cosmetic uses as a depigmenting agent.
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Affiliation(s)
- Patrícia Mazureki Campos
- Department of Pharmaceutical Sciences, Federal University of Parana, CEP 80210-170, Curitiba, PR, Brazil
| | | | | | - Valdir Cechinel-Filho
- Investigation Centre of Pharmaceutical Chemistry, University of Itajai Valley, CEP 88302-202, Itajai, SC, Brazil
| | - Giovani Marino Fávero
- Department of Biological Sciences, State University of Ponta Grossa, CEP 84030-900, Ponta Grossa, PR, Brazil
| | - Daniela Almeida Cabrini
- Department of Pharmacology, Federal University of Parana, CEP 81530-900, Curitiba, PR, Brazil
| | - Michel Fleith Otuki
- Department of Pharmacology, Federal University of Parana, CEP 81530-900, Curitiba, PR, Brazil.
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Zhu ZY, Wang WX, Wang ZQ, Chen LJ, Zhang JY, Liu XC, Wu SP, Zhang YM. Synthesis and antitumor activity evaluation of chrysin derivatives. Eur J Med Chem 2014; 75:297-300. [DOI: 10.1016/j.ejmech.2013.12.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 11/15/2013] [Accepted: 12/24/2013] [Indexed: 01/06/2023]
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Fong P, Tong HHY, Chao CM. In Silico Prediction of Tyrosinase and Adenylyl Cyclase Inhibitors from Natural Compounds. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Although many herbal medicines are effective in the treatment of hyperpigmentation, the potency of different constituents remains unknown. In this work, more than 20,000 herbal ingredients from 453 herbs were docked into the crystal structures of adenylyl cyclase and a human homology tyrosinase model using Surflex-Dock. These two enzymes are responsible for melanin production and inhibition of them may attain a skin-whitening effect superior to currently available agents. The essential drug properties for topical formulation of the herbal ingredients, including skin permeability, sensitization, irritation, corrosive and carcinogenic properties were predicted by Dermwin, Skin Sensitization Alerts (SSA), Skin Irritation Corrosion Rules Estimation Tool (SICRET) and Benigni/Bossa rulebase module of Toxtree. Moreover, similarity ensemble and pharmacophore mapping approaches were used to forecast other potential targets for these herbal compounds by the software, SEArch and PharmMapper. Overall, this study predicted seven compounds to have advanced drug-like properties over the well-known effective tyrosinase inhibitors, arbutin and kojic acid. These seven compounds have the highest potential for further in vitro and in vivo investigation with the aim of developing safe and high-efficacy skin-whitening agents.
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Affiliation(s)
- Pedro Fong
- School of Health Sciences, Macao Polytechnic Institute, Macao, 999078, China
| | - Henry H. Y. Tong
- School of Health Sciences, Macao Polytechnic Institute, Macao, 999078, China
| | - Chi M. Chao
- School of Health Sciences, Macao Polytechnic Institute, Macao, 999078, China
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Ko HH, Tsai YT, Yen MH, Lin CC, Liang CJ, Yang TH, Lee CW, Yen FL. Norartocarpetin from a folk medicine Artocarpus communis plays a melanogenesis inhibitor without cytotoxicity in B16F10 cell and skin irritation in mice. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 13:348. [PMID: 24325567 PMCID: PMC3878891 DOI: 10.1186/1472-6882-13-348] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 11/19/2013] [Indexed: 11/26/2022]
Abstract
Background Many natural products used in preventive medicine have also been developed as cosmeceutical ingredients in skin care products, such as Scutellaria baicalensis and Gardenia jasminoides. Norartocarpetin is one of the antioxidant and antityrosinase activity compound in Artocarpus communis; however, the cytotoxicity, skin irritation and antimelanogenesis mechanisms of norartocarpetin have not been investigated yet. Methods In the present study, cell viability in vitro and skin irritation in vivo are used to determine the safety of norartocarpetin. The melanogenesis inhibition of norartocarpetin was determined by cellular melanin content and tyrosinase in B16F10 melanoma cell. Moreover, we examined the related-melanogenesis protein by western blot analysis for elucidating the antimelanogenesis mechanism of norartocarpin. Results The result of the present study demonstrated that norartocarpetin not only present non-cytotoxic in B16F10 and human fibroblast cells but also non-skin irritation in mice. Moreover, our result also first found that norartocarpetin downregulated phospho-cAMP response element-binding (phospho-CREB) and microphthalmia-associated transcription factor (MITF) expression, which in turn decreased both synthesis of tyrosinases (TRP-1 and TRP-2) and cellular melanin content. This process is dependent on norartocarpetin phosphorylation by mitogen-activated protein kinases such as phospho-JNK and phospho-p38, and it results in decreased melanogenesis. Conclusion The present study suggests that norartocarpetin could be used as a whitening agent in medicine and/or cosmetic industry and need further clinical study.
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Yoon WJ, Ham YM, Yoon HS, Lee WJ, Lee NH, Hyun CG. Acanthoic Acid Inhibits Melanogenesis through Tyrosinase Down-regulation and Melanogenic Gene Expression in B16 Melanoma Cells. Nat Prod Commun 2013. [DOI: 10.1177/1934578x1300801003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The aim of this study was to investigate the in vitro inhibitory effects of acanthoic acid (ACAN), isolated from Acanthopanax koreanum, on melanogenesis and its related enzymes such as tyrosinase, tyrosinase-related protein (TRP)-1, and TRP-2 in B16 melanoma cells. We found that ACAN significantly attenuates melanin synthesis and reduces the activity of intracellular tyrosinase, the rate-limiting melanogenic enzyme. Western blot analysis showed that ACAN also decreases tyrosinase, TRP-1, and TRP-2 protein expression. In addition, ACAN significantly decreased the expression of microphthalmia-associated transcription factor (MITF), a key regulator of melanogenesis. These results indicate that ACAN effectively inhibits melanin biosynthesis through down-regulation of MITF and thus could be useful as a new skin-whitening agent.
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Affiliation(s)
- Weon-Jong Yoon
- Jeju Biodiversity Research Institute (JBRI), Jeju Technopark, Jeju 699-943, Republic of Korea
| | - Young-Min Ham
- Jeju Biodiversity Research Institute (JBRI), Jeju Technopark, Jeju 699-943, Republic of Korea
| | - Hun Seok Yoon
- Department of Chemistry, Center for Cosmetic Science, Jeju National University, Jeju 690–756, Korea
| | - Wook-Jae Lee
- Jeju Biodiversity Research Institute (JBRI), Jeju Technopark, Jeju 699-943, Republic of Korea
| | - Nam Ho Lee
- Department of Chemistry, Center for Cosmetic Science, Jeju National University, Jeju 690–756, Korea
| | - Chang-Gu Hyun
- Department of Chemistry, Center for Cosmetic Science, Jeju National University, Jeju 690–756, Korea
- LINC Agency, Jeju National University, Jeju 690–756, Korea
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Abstract
Melanogenesis is a biosynthetic pathway for the formation of the pigment melanin in human skin. A key enzyme, tyrosinase, catalyzes the first and only rate-limiting steps in melanogenesis, and the down-regulation of enzyme activity is the most reported method for the inhibition of melanogenesis. Because of the cosmetically important issue of hyperpigmentation, there is a big demand for melanogenesis inhibitors. This encourages researchers to seek potent melanogenesis inhibitors for cosmetic uses. This article reviews melanogenesis inhibitors that have been recently discovered from natural sources. The reaction mechanisms of the inhibitors on tyrosinase activity are also discussed.
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