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Guo Y, Wu W, Yang X. Coordinated microRNA/mRNA Expression Profiles Reveal Unique Skin Color Regulatory Mechanisms in Chinese Giant Salamander (Andrias davidianus). Animals (Basel) 2023; 13:ani13071181. [PMID: 37048437 PMCID: PMC10093658 DOI: 10.3390/ani13071181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/18/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
The Chinese giant salamander (Andrias davidianus) has been increasingly popular in the aquaculture market in China in recent years. In the breeding process of Andrias davidianus, we found that some albino individuals were extremely rare and could not be inherited stably, which severely limits their commercialization in the aquaculture market. In this study, we performed transcriptome and small RNA (sRNA) sequencing analyses in the skin samples of wild-type (WT) and albino (AL) Andrias davidianus. In total, among 5517 differentially expressed genes (DEGs), 2911 DEGs were down-regulated in AL, including almost all the key genes involved in melanin formation. A total of 25 miRNAs were differentially expressed in AL compared to WT, of which 17 were up-regulated. Through the integrated analysis, no intersection was found between the target genes of the differentially expressed miRNAs and the key genes for melanin formation. Gene Ontology (GO) and KEGG pathway analyses on DEGs showed that these genes involved multiple processes relevant to melanin synthesis and the key signal pathway MAPK. Interestingly, the transcription factors SOX10 and PAX3 and the Wnt signaling pathway that play a key role in other species were not included, while the other two transcription factors in the SOX family, SOX21 and SOX7, were included. After analyzing the key genes for melanin formation, it was interesting to note an alternative splicing form of the MITF in WT and a critical mutation of the SLC24A5 gene in AL, which might be the main reason for the skin color change of Andrias davidianus. The results contributed to understanding the molecular mechanism of skin pigmentation in Andrias davidianus and accelerating the acquisition process of individuals with specific body colors by genetic means.
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Merecz-Sadowska A, Sitarek P, Kowalczyk T, Zajdel K, Kucharska E, Zajdel R. The Modulation of Melanogenesis in B16 Cells Upon Treatment with Plant Extracts and Isolated Plant Compounds. Molecules 2022; 27:molecules27144360. [PMID: 35889231 PMCID: PMC9324663 DOI: 10.3390/molecules27144360] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/22/2022] [Accepted: 07/05/2022] [Indexed: 01/27/2023] Open
Abstract
Plants are a rich source of secondary metabolites that exhibit numerous desired properties. The compounds may influence the biology of melanocytes, pigment cells that produce melanin, by modulating numerous signaling pathways, including cAMP/PKA, MAPKs and PI3K/AKT. Its downstream target is microphthalmia-associated transcription factor, responsible for the expression of the tyrosinase enzyme, which plays a major role in melanogenesis. Therefore, this literature review aims to provide insights related to melanogenesis modulation mechanisms of plant extracts and isolated plant compounds in B16 cells. Database searches were conducted using online-based library search instruments from 2012 to 2022, such as NCBI-PubMed and Google Scholar. Upregulation or downregulation of signaling pathways by phytochemicals can influence skin hypo- and hyperpigmentation by changing the level of melanin production, which may pose a significant cosmetic issue. Therefore, plant extracts or isolated plant compounds may be used in the therapy of pigmentation disorders.
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Affiliation(s)
- Anna Merecz-Sadowska
- Department of Computer Science in Economics, University of Lodz, 90-214 Lodz, Poland;
- Correspondence:
| | - Przemysław Sitarek
- Department of Biology and Pharmaceutical Botany, Medical University of Lodz, 90-151 Lodz, Poland;
| | - Tomasz Kowalczyk
- Department of Molecular Biotechnology and Genetics, University of Lodz, 90-237 Lodz, Poland;
| | - Karolina Zajdel
- Department of Medical Informatics and Statistics, Medical University of Lodz, 90-645 Lodz, Poland;
| | - Ewa Kucharska
- Chair of Gerontology, Geriatrics and Social Work at the Faculty of Pedagogy, Ignatianum Academy in Cracow, 31-501 Cracow, Poland;
| | - Radosław Zajdel
- Department of Computer Science in Economics, University of Lodz, 90-214 Lodz, Poland;
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Synthesis of silver nanoparticles using aqueous extract of Cuscuta japonica seeds and their antibacterial and antioxidant activities. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.109035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Morin Induces Melanogenesis via Activation of MAPK Signaling Pathways in B16F10 Mouse Melanoma Cells. Molecules 2021; 26:molecules26082150. [PMID: 33917985 PMCID: PMC8068350 DOI: 10.3390/molecules26082150] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 11/25/2022] Open
Abstract
Morin is a well-known flavonoid, and has been reported to have various properties, such as anti-cell death, antioxidant, and anti-inflammatory properties. Although studies on the biochemical and biological actions of morin have been reported, the melanin biosynthesis effects and molecular mechanisms are unknown. In this study, we first found that morin has the effect of enhancing melanin biosynthesis in B16F10 mouse melanoma cells, and analyzed the molecular mechanism. In this study, we examined the effects of morin on the melanin contents and tyrosinase activity, as well as the protein expression levels of the melanogenic enzymes TRP-1, TRP-2, and microphtalmia-associated transcription factor (MITF) in B16F10 mouse melanoma cells. Morin showed no cytotoxicity in the concentration range of 5–100 μM, and significantly increased the intracellular tyrosinase activity and melanin contents. In mechanism analysis, morin increased the protein expression of TRP-1, TRP-2, and MITF associated with melanogenesis. Furthermore, morin increased phosphorylated ERK and p38 at the early time, and decreased phosphorylated ERK after 12 h. The results suggest that morin enhances melanin synthesis through the MAPK signaling pathways in B16F10 mouse melanoma cells.
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Jeju Magma-Seawater Inhibits α-MSH-Induced Melanogenesis via CaMKKβ-AMPK Signaling Pathways in B16F10 Melanoma Cells. Mar Drugs 2020; 18:md18090473. [PMID: 32962063 PMCID: PMC7551477 DOI: 10.3390/md18090473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 12/19/2022] Open
Abstract
Melanin protects skin from ultraviolet radiation, toxic drugs, and chemicals. Its synthesis is sophisticatedly regulated by multiple mechanisms, including transcriptional and enzymatic controls. However, uncontrolled excessive production of melanin can cause serious dermatological disorders, such as freckles, melasma, solar lentigo, and cancer. Moreover, melanogenesis disorders are also linked to neurodegenerative diseases. Therefore, there is a huge demand for safer and more potent inhibitors of melanogenesis. In the present study, we report novel inhibitory effects of Jeju magma-seawater (JMS) on melanogenesis induced by α-melanocyte stimulating hormone (α-MSH) in B16F10 melanoma cells. JMS is the abundant underground seawater found in Jeju Island, a volcanic island of Korea. Research into the physiological effects of JMS is rapidly increasing due to its high contents of various minerals that are essential to human health. However, little is known about the effects of JMS on melanogenesis. Here, we demonstrate that JMS safely and effectively inhibits α-MSH-induced melanogenesis via the CaMKKβ (calcium/calmodulin-dependent protein kinase β)-AMPK (5′ adenosine monophosphate-activated protein kinase) signaling pathway. We further demonstrate that AMPK inhibits the signaling pathways of protein kinase A and MAPKs (mitogen-activated protein kinase), which are critical for melanogenesis-related gene expression. Our results highlight the potential of JMS as a novel therapeutic agent for ameliorating skin pigmentation-related disorders.
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Neobavaisoflavone Inhibits Melanogenesis through the Regulation of Akt/GSK-3β and MEK/ERK Pathways in B16F10 Cells and a Reconstructed Human 3D Skin Model. Molecules 2020; 25:molecules25112683. [PMID: 32527040 PMCID: PMC7321173 DOI: 10.3390/molecules25112683] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 12/11/2022] Open
Abstract
Previous studies have confirmed the anti-melanogenic effect of the aerial part of Pueraria lobata, however, due to its inherent color, P. lobata has limited commercial use. In this study, an extract (GALM-DC) of the aerial part of P. lobata having improved color by the use of activated carbon was obtained. Furthermore, the active compound neobavaisoflavone (NBI) was identified from GALM-DC. The effect of NBI on melanogenesis, tyrosinase activity, α-glucosidase activity, and mechanism of action in melanocytes was investigated. Tyrosinase activity, melanin contents and the expression of melanin-related genes and proteins were determined in B16F10 cells. NBI reduced melanin synthesis and tyrosinase activity. Furthermore, NBI treatment reduced the mRNA and protein expression levels of MITF, TRP-1, and tyrosinase. NBI also works by phosphorylating and activating proteins that inhibit melanogenesis, such as GSK3β and ERK. Specific inhibitors of Akt/GSK-3β (LY294002) and MEK/ERK (PD98059) signaling prevented the inhibition of melanogenesis by NBI. NBI inhibited melanin production through the regulation of MEK/ERK and Akt/GSK-3β signaling pathways in α-MSH-stimulated B16F10 cells. NBI suppresses tyrosinase activity and melanogenesis through inhibition of α-glucosidase activity. Besides, NBI significantly reduced melanogenesis in a reconstructed human 3D skin model. In conclusion, these results suggest that NBI has potential as a skin-whitening agent for hyperpigmentation.
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Noureen S, Noreen S, Ghumman SA, Batool F, Bukhari SNA. The genus Cuscuta (Convolvolaceac): An updated review on indigenous uses, phytochemistry, and pharmacology. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2019; 22:1225-1252. [PMID: 32128087 PMCID: PMC7038433 DOI: 10.22038/ijbms.2019.35296.8407] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 05/10/2019] [Indexed: 01/05/2023]
Abstract
Cuscuta, commonly known as dodder, is a genus of family convolvolaceace. Approximately 170 species of Cuscuta are extensively distributed in temperate and subtropical areas of the world. Species of this genus are widely used as essential constituents in functional foods and traditional medicinal systems. Various parts of many members of Cuscuta have been found efficacious against a variety of diseases. Phytochemical investigations have confirmed presence of biologically active moieties such as flavonoids, alkaloids, lignans, saponines, phenolics, tannins, and fatty acids. Pharmacological studies and traditional uses of these plants have proved that they are effective antibacterial, antioxidant, antiostioporotic, hepatoprotective, anti-inflammatory, antitumor, antipyretic, antihypertensive, analgesic, anti hair fall, and antisteriogenic agents.
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Affiliation(s)
- Shazia Noureen
- Department of Chemistry, University of Sargodha, Sargodha-40100, Pakistan
| | - Sobia Noreen
- Department of Chemistry, University of Sargodha, Sargodha-40100, Pakistan
| | | | - Fozia Batool
- Department of Chemistry, University of Sargodha, Sargodha-40100, Pakistan
| | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Aljouf, Sakaka2014, Saudi Arabia
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Ju IG, Kim N, Choi JG, Lee JK, Oh MS. Cuscutae Japonicae Semen Ameliorates Memory Dysfunction by Rescuing Synaptic Damage in Alzheimer's Disease Models. Nutrients 2019; 11:nu11112591. [PMID: 31661844 PMCID: PMC6893468 DOI: 10.3390/nu11112591] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/21/2019] [Accepted: 10/25/2019] [Indexed: 01/03/2023] Open
Abstract
Alzheimer's disease (AD) is the most common type of dementia in the elderly. It is characterized by the accumulation of amyloid-beta (Aβ) and progressive cognitive impairment. To alleviate the symptoms of AD, functional foods and nutrients have been used for centuries. In this study, we investigated whether Cuscutae Japonicae Semen (CJS), a medicinal food traditionally used in East Asia, has effects on memory improvement and synapse protection in AD. We orally administered CJS to 5x familiar AD (5xFAD) transgenic mice and performed the Morris water maze test. The results showed that CJS treatment ameliorated the decline of memory function. Then, we demonstrated that CJS attenuated the degeneration of pre- and post-synaptic proteins in the hippocampi of 5xFAD mice. To demonstrate the effects of CJS in vitro, we treated Aβ in primary neuronal culture with CJS and observed that CJS rescued the loss of functional synapses. The protective effects of CJS on the synapse were due to the inhibition of activated caspase-3 expression. Additionally, CJS inhibited the phosphorylation of glycogen synthase kinase-3β and tau proteins, which contribute to synaptic dysfunction. Taken together, our results suggest that CJS is efficient in alleviating memory loss by rescuing caspase-3-mediated synaptic damage in AD treatment.
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Affiliation(s)
- In Gyoung Ju
- Department of Life and Nanopharmaceutical Sciences, Graduate school, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Namkwon Kim
- Department of Life and Nanopharmaceutical Sciences, Graduate school, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Jin Gyu Choi
- BK21 PLUS Integrated Education and Research Center for Nature-inspired Drug Development Targeting Healthy Aging, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Jong Kil Lee
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Myung Sook Oh
- Department of Life and Nanopharmaceutical Sciences, Graduate school, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
- Department of Oriental Pharmaceutical Science, College of Pharmacy and Kyung Hee East-West Pharmaceutical Research Institute, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
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Kim HJ, Yang H, Jung DH, Hwang JT, Ko BS. Ameliorating effects of Cuscuta chinensis Lamak extract on hind‑limb ischemia, and angiogenic‑ or inflammatory associated factors in ovariectomized mice. Mol Med Rep 2019; 19:3321-3329. [PMID: 30816501 DOI: 10.3892/mmr.2019.9977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 02/15/2019] [Indexed: 11/06/2022] Open
Abstract
Cuscuta chinensis Lamak (CCL) has traditionally been used in Korea to treat sexual disorders and skin problems. The aim of the present study was to investigate the effects of CCL extract on surgical injury‑induced ischemia in the hind limbs of mice. Specifically, female C57BL/6 mice were ovariectomized, and their hind‑limb vessels were ligated with surgical silk (6‑0) and excised. CCL (150 or 450 mg/kg/BW) was then administered to the mice for 3 weeks, and the blood flow rate was evaluated using a laser Doppler system at ‑7, 0, 7, 14 and 21 days following hind‑limb ischemia. The serum expression profiles of angiogenic and inflammatory mediators were measured using an antibody array, and the transcript levels were reverse transcription‑quantitative polymerase chain reaction. The rate of hind limb blood flow was normalized to non‑ischemic lesions and revealed to be markedly elevated at 14 and 21 days following ischemia when compared with the vehicle group. The density of capillaries in the hind limbs was also significantly increased following treatment with CCL in a dose‑dependent manner. In addition, the transcriptional expression of angiogenetic factors were upregulated, whereas that of inflammatory cytokines were downregulated. Finally, vascular endothelial cell migration and tube formation were evaluated in vitro using human umbilical vein endothelial cells (HUVECs) and identified to be significantly increased following treatment with CCL. Overall, the results of the present study indicate that CCL extract exhibits therapeutic potential for the treatment of hind‑limb ischemia as it promotes peripheral angiogenic and anti‑inflammatory effects in mice.
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Affiliation(s)
- Hye Jin Kim
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Hyun Yang
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Dong Ho Jung
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Joo Tae Hwang
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Byoung-Seob Ko
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
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Chabra A, Monadi T, Azadbakht M, Haerizadeh SI. Ethnopharmacology of Cuscuta epithymum: A comprehensive review on ethnobotany, phytochemistry, pharmacology and toxicity. JOURNAL OF ETHNOPHARMACOLOGY 2019; 231:555-569. [PMID: 30522939 DOI: 10.1016/j.jep.2018.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cuscuta epithymum (L.) L. (C. epithymum; Convolvulaceae) is a parasitic plant that has long been used locally and traditionally in Asia, Europe and other regions. AIM OF THE REVIEW The study intends to reflect the significance of the C. epithymum in traditional medicine. This review aims to grant insight into the species' botany, pharmacological activities and phytochemistry with distinctive emphasis on its ethnomedicinal and traditional applications in all over the world. The review endeavors to rule out any inconsistency between the species' traditional application and its pharmacological activity, and presenting any coherence existing. MATERIALS AND METHODS The books on ethnomedicine and the main medieval Persian medicine textbooks including Makhzan Al- Advieh, The canon of medicine, Zakhireh kharazmshahi and etc were explored for C. epithymum. Additionally, information on the ethnobotany, phytochemistry, morphology, taxonomy, modern medicinal uses, and pharmacological activities were collected in electronic databases including Google Scholar, Science Direct, Scopus, and PubMed using the keywords "Cuscuta epithymum," "traditional medicine," "ethnomedicine," "phytochemistry," "pharmacology" and "activity." Then, the available articles from 1975 to 2017 were employed for this study. RESULTS C. epithymum is a rootless plant, widely distributed and available in every continent except Antarctica. It was used traditionally in formularies or by rural people and as geriatric drug, detergent, purgative, disorders in the melancholic humor, joint, kidney, urinary tract, gastrointestinal system, nervous system, etc. In modern medicine, the extract of C. epithymum showed anti-microbial, cytotoxic, anticonvulsant, anti-urease, immune stimulatory, hepatoprotective effect, and antioxidant activity. The main phytochemical constituents are alkaloids; saponins; tannins; triterpenoids; steroids; carbohydrates; aromatic compounds; flavonoids and the hydroxycinnamic acid derivatives. CONCLUSION The modern pharmacological studies have validated the traditional and ethnobotanical uses of C. epithymum. However, many aspects of this herb have not been studied yet. In addition, information about the phytochemistry and toxicological profile is insufficient. Owing to the extensive traditional uses of C. epithymum. Hence further studies on pharmacological activities, phytochemistry, and toxicity and adverse effects seem to be necessary to appraise the medicinal values of C. epithymum.
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Affiliation(s)
- Aroona Chabra
- Department of Pharmacognosy and Biotechnology, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran; Student Research Committee, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Taha Monadi
- Student Research Committee, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Azadbakht
- Department of Pharmacognosy and Biotechnology, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Iman Haerizadeh
- Student Research Committee, Ramsar International Branch, Mazandaran University of Medical Sciences, Sari, Iran
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Han JH, Bang JS, Choi YJ, Choung SY. Anti-melanogenic effects of oyster hydrolysate in UVB-irradiated C57BL/6J mice and B16F10 melanoma cells via downregulation of cAMP signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2019; 229:137-144. [PMID: 30273735 DOI: 10.1016/j.jep.2018.09.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/27/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pacific oyster (Crassostrea gigas) has been used to treat pigmentary disorders such as freckles, melasma, and moles in Korea. AIM OF THE STUDY We aimed to investigate the inhibitory effects of oyster hydrolysate (OH) on melanogenesis in B16F10 melanoma cells and UVB-irradiated C57BL/6J mice. MATERIAL AND METHODS The molecular weight distribution and peptide sequences of OH were detected using MALDI-TOF and UHPLC. To evaluate the anti-melanogenic effects of OH, cell viability, melanin content, tyrosinase activity, intracellular cyclic adenosine monophosphate (cAMP) and protein expressions levels were measured in B16F10 cells. In addition, OH was orally administered to UVB-irradiated mice for 9 weeks. After sacrificing the mice, the whitening effects of OH were evaluated based on histological observations and protein expression levels. RESULTS In B16F10 cells, OH decreased melanin content and tyrosinase activity in a dose-dependent manner. OH exhibited anti-melanogenic activities via downregulation of cAMP signaling pathway, which consequently decreased melanin synthesis. In UVB-irradiated mice groups, OH decreased the number of active melanocytes and melanin granules. The expression of tyrosinase-related proteins and microphthalmia-associated transcription factor (MITF) decreased in the OH-administered groups. CONCLUSIONS These results show that OH inhibits melanin synthesis in B16F10 cells via downregulation of cAMP signaling pathway and in UVB-irradiated mice, by decreasing the number of active melanocytes and melanin granules.
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Affiliation(s)
- Jae Hyeong Han
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Joon Sok Bang
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Yeung Joon Choi
- Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University, Gyeongnam 53064, Republic of Korea
| | - Se-Young Choung
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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12
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Liu ZJ, Wang YL, Li QL, Yang L. Improved antimelanogenesis and antioxidant effects of polysaccharide from Cuscuta chinensis Lam seeds after enzymatic hydrolysis. ACTA ACUST UNITED AC 2018; 51:e7256. [PMID: 29846408 PMCID: PMC5995039 DOI: 10.1590/1414-431x20187256] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/06/2018] [Indexed: 12/20/2022]
Abstract
Cuscuta chinensis polysaccharide (CPS) was extracted using hot
water and enzymatically hydrolyzed C. chinensis polysaccharide
(ECPS) was produced by the mannase enzymatic hydrolysis process. The purpose of
this research was to investigate the antimelanogenic activity of ECPS and CPS in
B16F10 melanoma cells. The in vitro antioxidant activity was
assessed by their ferric iron reducing power and DPPH free radical scavenging
activities. The molecular mass distribution of polysaccharides was determined
using SEC-MALLS-RI. CPS was successfully enzymatically degraded using mannase
and the weighted average molecular weights of CPS and ECPS were 434.6 kDa and
211.7 kDa. The results of biological activity assays suggested that the
enzymatically hydrolyzed polysaccharide had superior antimelanogenic activity
and antioxidant effect than the original polysaccharide. ECPS exhibited
antimelanogenic activity by down-regulating the expression of tyrosinase, MITF,
and TRP-1 without cytotoxic effects in B16F10 melanoma cells. In conclusion,
ECPS have the potential to become a skin whitening product.
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Affiliation(s)
- Zi-Jun Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ya-Lan Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Qi-Ling Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Liu Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Liu YY, Su XR, Liu SS, Yang SS, Jiang CY, Zhang Y, Zhang S. Zebrafish phosvitin-derived peptide Pt5 inhibits melanogenesis via cAMP pathway. FISH PHYSIOLOGY AND BIOCHEMISTRY 2017; 43:517-525. [PMID: 28130732 DOI: 10.1007/s10695-016-0306-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Zebrafish phosvitin-derived peptide Pt5, consisting of the C-terminal 55 residues of phosvitin, has been shown to have an antimicrobial-immunomodulatory activity comparable to phosvitin. Here, we showed clearly that Pt5 had the capacity to inhibit tyrosinase (TYR) activity and melanin biosynthesis, and this inhibition was independent of cell proliferation and cytotoxic effects. Incubation of fluorescein isothiocyanate (FITC)-labeled Pt5 with B16F10 melanoma cells revealed that Pt5 was localized in the cytoplasm of the cells. In addition, Pt5 inhibited the expression of TYR, tyrosinase-related protein-1 (TRP-1), tyrosinase-related protein-2 (TRP-2), and microphthalmia-associated transcription factor (MITF) in B16F10 melanoma cells and reduced the intracellular cyclic adenosine monophosphate (cAMP) concentration in the cells, but it did not affect the cellular contents of pERK1/2 and β-catenin, suggesting that Pt5 regulates melanin biosynthesis via cAMP signaling pathway rather than Wnt and MAPK pathways. Collectively, these data indicate that Pt5 has the potential to be used as a melanogenesis inhibitor in medical and cosmetic industry, a novel role ever reported.
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Affiliation(s)
- Yuan-Yuan Liu
- Department of Medical Laboratory, Shaoyang University, Shaoyang, Hunan, 422000, China
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Department of Marine Biology, Ocean University of China, Room 205, Ke Xue Guan, 5 Yushan Road, Qingdao, 266003, China
| | - Xiu-Rong Su
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Shou-Sheng Liu
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Department of Marine Biology, Ocean University of China, Room 205, Ke Xue Guan, 5 Yushan Road, Qingdao, 266003, China
| | - Shuang-Shuang Yang
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Department of Marine Biology, Ocean University of China, Room 205, Ke Xue Guan, 5 Yushan Road, Qingdao, 266003, China
| | - Cheng-Yan Jiang
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Department of Marine Biology, Ocean University of China, Room 205, Ke Xue Guan, 5 Yushan Road, Qingdao, 266003, China
- College of Life Science and Technology, Honghe University, Mengzi, Yunnan, 661100, China
| | - Yu Zhang
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Department of Marine Biology, Ocean University of China, Room 205, Ke Xue Guan, 5 Yushan Road, Qingdao, 266003, China.
| | - Shicui Zhang
- Laboratory for Evolution & Development, Institute of Evolution & Marine Biodiversity, Department of Marine Biology, Ocean University of China, Room 205, Ke Xue Guan, 5 Yushan Road, Qingdao, 266003, China.
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Moon M, Jeong HU, Choi JG, Jeon SG, Song EJ, Hong SP, Oh MS. Memory-enhancing effects of Cuscuta japonica Choisy via enhancement of adult hippocampal neurogenesis in mice. Behav Brain Res 2016; 311:173-182. [DOI: 10.1016/j.bbr.2016.05.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 05/08/2016] [Accepted: 05/12/2016] [Indexed: 10/21/2022]
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Chen MJ, Hung CC, Chen YR, Lai ST, Chan CF. Novel synthetic kojic acid-methimazole derivatives inhibit mushroom tyrosinase and melanogenesis. J Biosci Bioeng 2016; 122:666-672. [PMID: 27353860 DOI: 10.1016/j.jbiosc.2016.06.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 06/06/2016] [Accepted: 06/07/2016] [Indexed: 11/28/2022]
Abstract
In this study, two kojic acid-methimazole (2-mercapto-1-methylimidazole, MMI, 1) derivatives, 5-hydroxy-2-{[(1-methyl-1H-imidazol-2-yl)thio]methyl}-4H-pyran-4-one (compound 4) and 5-methoxy-2-{[(1-methyl-1H-imidazol-2-yl)thio]methyl}-4H-pyran-4-one (compound 5), were synthesized to examine their inhibitory kinetics on mushroom tyrosinase. Compound 4 exhibited a potent inhibitory effect on monophenolase activity in a dose-dependent manner, with an IC50 value of 0.03 mM. On diphenolase activity, compound 4 exhibited a less inhibitory effect (IC50 = 1.29 mM) but was stronger than kojic acid (IC50 = 1.80 mM). Kinetic analysis indicated that compound 4 was both as a noncompetitive monophenolase and diphenolase inhibitor. By contrast, compound 5 exhibited no inhibitory effects on mushroom tyrosinase activity. The IC50 value of compound 4 for the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity was 4.09 mM, being much higher than the IC50 of compound 4 for inhibiting the tyrosinase activity. The results indicated that the antioxidant activity of compound 4 may be partly related to the potent inhibitory effect on mushroom tyrosinase. Compound 4 also exerted a potent inhibitory effect on intracellular melanin formation in B16/F10 murine melanoma cells, and caused no cytotoxicity. Furthermore, compound 4 induced no adverse effects on the Hen's egg test-chorioallantoic membrane (HET-CAM).
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Affiliation(s)
- Ming-Jen Chen
- Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan
| | - Chih-Chuan Hung
- Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan
| | - Yan-Ru Chen
- Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan
| | - Shih-Ting Lai
- Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan
| | - Chin-Feng Chan
- Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan.
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Hridya H, Amrita A, Mohan S, Gopalakrishnan M, Dakshinamurthy TK, Doss GP, Siva R. Functionality study of santalin as tyrosinase inhibitor: A potential depigmentation agent. Int J Biol Macromol 2016; 86:383-9. [DOI: 10.1016/j.ijbiomac.2016.01.098] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/21/2016] [Accepted: 01/26/2016] [Indexed: 12/28/2022]
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17
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Yang B, Yang Q, Yang X, Yan HB, Lu QP. Hyperoside protects human primary melanocytes against H2O2-induced oxidative damage. Mol Med Rep 2016; 13:4613-9. [PMID: 27082158 PMCID: PMC4878558 DOI: 10.3892/mmr.2016.5107] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 01/26/2016] [Indexed: 11/12/2022] Open
Abstract
Cuscutae semen has been shown to have beneficial effects in the treatment of vitiligo, recorded in the Chinese Pharmacopoeia, whereas the effects of its constituent compounds remains to be elucidated. Using a tetrazolium bromide assay, the present study found that hyperoside (0.5–200 µg/ml) significantly increased the viability of human melanocytes in a time- and dose-dependent manner. The present study used a cell model of hydrogen peroxide (H2O2)-induced oxidative damage to examine the effect of hyperoside on human primary melanocytes. The results demonstrated that hyperoside pretreatment for 2 h decreased cell apoptosis from 54.03±9.11 to 17.46±3.10% in the H2O2-injured melanocytes. The levels of oxidative stress in the mitochondrial membrane potential of the melanocytes increased following hyperoside pretreatment. The mRNA and protein levels of B-cell lymphoma-2/Bcl-2-associated X protein and caspase 3 were regulated by hyperoside, and phosphoinositide 3-kinase/AKT and mitogen-activated protein kinase signaling were also mediated by hyperoside. In conclusion, the results of the present study demonstrated that hyperoside protected the human primary melanocytes against oxidative damage.
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Affiliation(s)
- Bin Yang
- Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Qin Yang
- Department of Laboratory Medicine, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Xin Yang
- Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Hong-Bo Yan
- Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Qi-Ping Lu
- Department of General Surgery, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
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Park J, Chung H, Bang SH, Han AR, Seo EK, Chang SE, Kang DH, Oh ES. (E)-4-(3,4-Dimethoxyphenyl)but-3-en-1-ol Enhances Melanogenesis through Increasing Upstream Stimulating Factor-1-Mediated Tyrosinase Expression. PLoS One 2015; 10:e0141988. [PMID: 26535571 PMCID: PMC4633108 DOI: 10.1371/journal.pone.0141988] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 10/15/2015] [Indexed: 12/31/2022] Open
Abstract
We investigated the potential melanogenic effect of compounds from Zingiber cassumunar Roxb. Our data revealed that chloroform-soluble extract of Z. cassumunar enhanced melanin synthesis in B16F10 melanoma cells. Among the components of the chloroform extract, (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-ol (DMPB) increased melanogenesis in both B16F10 cells and human primary melanocytes. In B16F10 cells, DMPB enhanced the activation of ERK and p38, and the level of tyrosinase. Although the level of microphthalmia-associated transcription factor was unchanged in DMPB-treated B16F10 cells, DMPB increased levels and nuclear localization of upstream stimulating factor-1 (USF1). Consistently, DMPB-mediated melanin synthesis was diminished in USF1-knockdown cells. Furthermore, DMPB induced hyperpigmentation in brown guinea pigs in vivo. Together, these data suggest that DMPB may promote melanin synthesis via USF1 dependent fashion and could be used as a clinical therapeutic agent against hypopigmentation-associated diseases.
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Affiliation(s)
- Jisu Park
- Department of Life Sciences, the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Heesung Chung
- Department of Life Sciences, the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Seung Hyun Bang
- Department of Dermatology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Ah-Reum Han
- The Global Top5 Research Program, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Eun-Kyoung Seo
- The Global Top5 Research Program, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Sung Eun Chang
- Department of Dermatology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Duk-Hee Kang
- Division of Nephrology, Department of Internal Medicine, Ewha Medical Research Center, Ewha Womans University School of Medicine, Seoul, Korea
| | - Eok-Soo Oh
- Department of Life Sciences, the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
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Andrographolide suppresses melanin synthesis through Akt/GSK3β/β-catenin signal pathway. J Dermatol Sci 2015; 79:74-83. [DOI: 10.1016/j.jdermsci.2015.03.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 03/18/2015] [Accepted: 03/19/2015] [Indexed: 11/22/2022]
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20
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Yamauchi K, Mitsunaga T, Itakura Y, Batubara I. Extracellular melanogenesis inhibitory activity and the structure-activity relationships of ugonins from Helminthostachys zeylanica roots. Fitoterapia 2015; 104:69-74. [PMID: 25979512 DOI: 10.1016/j.fitote.2015.05.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/07/2015] [Accepted: 05/10/2015] [Indexed: 11/28/2022]
Abstract
Ugonin J, K, and L, which are luteolin derivatives, were isolated from Helminthostachys zeylanica roots by a series of chromatographic separations of a 50% ethanol/water extract. They were identified using nuclear magnetic resonance (NMR), ultraviolet (UV) spectra, and ultra-performance liquid chromatography coupled to time-of-flight mass spectrometry (UPLC-TOF-MS). In this study, the intra and extracellular melanogenic activity of the ugonins were determined using B16 melanoma cells. The results showed that ugonin J at 12.5, 25, and 50μM reduced extracellular melanin contents to 75, 16, and 14%, respectively, compared to the control. This indicates that ugonin J showed a stronger activity than arbutin, used as the positive control. Moreover, ugonin K showed a more potent inhibition with 19, 8, and 9% extracellular melanin reduction at the same concentrations, than that shown by ugonin J. In contrast, ugonin L did not inhibit intra- or extracellular melanogenic activity. Furthermore, in order to investigate the structure-activity relationships of the ugonins, the intra- and extracellular melanogenic activity of luteolin, methylluteolin, quercetin, eriodictyol, apigenin, and chrysin were determined. Consequently, it was suggested that the catechol and flavone skeleton of ugonin K is essential for the extracellular melanogenic inhibitory activity, and the low polarity substituent groups on the A ring of ugonin K may increase the activity.
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Affiliation(s)
- Kosei Yamauchi
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, 501-1193 Gifu, Japan
| | - Tohru Mitsunaga
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, 501-1193 Gifu, Japan.
| | - Yuki Itakura
- Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, 501-1193 Gifu, Japan
| | - Irmanida Batubara
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Biopharmaca Research Center, Bogor Agricultural University, Jl. Taman Kencana No. 3, Kampus IPB Taman Kencana, Bogor 16151, Indonesia.
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Kinetics of mushroom tyrosinase and melanogenesis inhibition by N-acetyl-pentapeptides. ScientificWorldJournal 2014; 2014:409783. [PMID: 25136665 PMCID: PMC4130364 DOI: 10.1155/2014/409783] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/27/2014] [Accepted: 07/06/2014] [Indexed: 01/05/2023] Open
Abstract
We investigated the kinetics of 4N-acetyl-pentapeptides, Ac-P1, Ac-P2, Ac-P3, and Ac-P4, regarding inhibition of mushroom tyrosinase activity. The peptides sequences of Ac-P1, Ac-P2, Ac-P3, and Ac-P4 were Ac-RSRFK, Ac-KSRFR, Ac-KSSFR, and Ac-RSRFS, respectively. The 4N-acetyl-pentapeptides were able to reduce the oxidation of l-DOPA by tyrosinase in a dose-dependent manner. Of the 4N-acetyl-pentapeptides, only Ac-P4 exhibited lag time (80 s) at a concentration of 0.5 mg/mL. The tyrosinase inhibitory effects of Ac-P4 (IC50 0.29 mg/mL) were more effective than those of Ac-P1, Ac-P2, and Ac-P3, in which IC50s were 0.75 mg/mL, 0.78 mg/mL, and 0.81 mg/mL, respectively. Kinetic analysis demonstrated that all 4N-acetyl-pentapeptides were mixed-type tyrosinase inhibitors. Furthermore, 0.1 mg/mL of Ac-P4 exhibited significant melanogenesis inhibition on B16F10 melanoma cells and was more effective than kojic acid. The melanogenesis inhibition of Ac-P4 was dose-dependent and did not induce any cytotoxicity on B16F10 melanoma cells.
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Wang TJ, An J, Chen XH, Deng QD, Yang L. Assessment of Cuscuta chinensis seeds׳ effect on melanogenesis: comparison of water and ethanol fractions in vitro and in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2014; 154:240-248. [PMID: 24746484 DOI: 10.1016/j.jep.2014.04.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 03/22/2014] [Accepted: 04/07/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cuscuta chinensis seeds have traditionally been used to treat freckles and melasma in Asia, although recent reports have revealed that Semen cuscutae is a promoter of melanogenesis. The present study aims to investigate the mechanism of this opposite effect of Semen cuscutae on melanogenesis. MATERIALS AND METHODS In accordance with traditional usage, the water fraction and the ethanol fraction from Semen cuscutae (WFSC/EFSC) were extracted to determine the herbal effects by examining the activity of mushroom tyrosinase, cellular melanin contents, tyrosinase activity assay, quantitative-reverse transcription polymerase chain reaction (qRT-PCR), and Western blot analysis for tyrosinase in B16F10 mouse melanoma cells. The melanocyte phenotypes of zebrafish larvae were observed while the in vivo melanin contents and tyrosinase activity were determined. RESULTS The activity of mushroom tyrosinase assay shown that WFSC was an uncompetitive inhibitor of mushroom tyrosinase, while EFSC indicated dose-dependent activation of the mushroom tyrosinase activity. The WFSC markedly inhibited 3-isobutyl-1-methylxanthine (IBMX)-stimulated melanin synthesis and tyrosinase activity in vitro. Howeveran accelerant role in melanin synthesis and tyosinase activity. Neither fraction had any effect on the IBMX-induced expression of tyrosinase protein or mRNA. The WFSC strongly inhibited melanin synthesis and cellular tyrosinase activity in vivo. Furthermore, with the function of WFSC at a higher concentration, a punctate melanocyte pattern appeared that was similar to the pattern induced by arbutin or Mequinol (MQ). The EFSC had no effect on the melanocytes of zebrafish larvae. It was discovered that WFSC did not show a stable inhibitory effect until it was extracted 1 month later. CONCLUSIONS These results suggest that the opposite effects of Cuscuta chinensis seeds were caused by the extraction methods and that time has an important role on the effect of WFSC. Both WFSC and EFSC significantly influence melanogenesis by regulating enzymatic activity of tyrosinase. In addition, the data indicate that wildtype (WT) zebrafish may be an ideal model for testing inhibitors of melanogenesis from clinically active herbs.
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Affiliation(s)
- Tian-Jing Wang
- TCM-Integrated Hospital, Southern Medical University, Guangzhou 510310, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Jing An
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Xiao-Hui Chen
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou 510515, China
| | - Qiu-Di Deng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Liu Yang
- TCM-Integrated Hospital, Southern Medical University, Guangzhou 510310, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China.
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Inhibitory effects of novel synthetic methimazole derivatives on mushroom tyrosinase and melanogenesis. Bioorg Med Chem 2014; 22:2809-15. [PMID: 24703463 DOI: 10.1016/j.bmc.2014.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 03/04/2014] [Accepted: 03/06/2014] [Indexed: 11/24/2022]
Abstract
In this study, we synthesized 4 methimazole (2-mercapto-1-methylimidazole, MMI) derivatives. The kinetics of inhibition on mushroom tyrosinase by methimazole and its derivatives were investigated. The results indicated that tert-butyl 3-methyl-2-sulfanylidene-2,3-dihydro-1H-imidazole-1-carboxylate (compound 3; 3), 2-mercaptoimidazole (MI; compound 1; 1) and MMI (compound 2; 2) significantly inhibited tyrosinase activity in a dose-dependent manner, exhibiting an IC50 value of 1.50mM, 4.11 mM, and 1.43 mM. However, compound 4 (4), compound 5 (5), and compound 6 (6) exerted no inhibitory effect on mushroom tyrosinase activity. Kinetic analysis indicated that 3 was a noncompetitive tyrosinase inhibitor, whereas both 1 and 2 were exhibited as mixed-type tyrosinase inhibitors. Furthermore, 3 exerted a potent inhibitory effect on intracellular melanin formation in the B16/F10 murine melanoma cells and did not cause cytotoxicity, as 1 and 2 did.
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Ko HH, Chiang YC, Tsai MH, Liang CJ, Hsu LF, Li SY, Wang MC, Yen FL, Lee CW. Eupafolin, a skin whitening flavonoid isolated from Phyla nodiflora, downregulated melanogenesis: Role of MAPK and Akt pathways. JOURNAL OF ETHNOPHARMACOLOGY 2013; 151:386-93. [PMID: 24212072 DOI: 10.1016/j.jep.2013.10.054] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/22/2013] [Accepted: 10/23/2013] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In hyperpigmentation disorders marked by melanin overproduction in the skin, including melisma and freckles, melanogenesis is caused by tyrosinase overexpression. Natural medicinal resources, like Phyla nodiflora, a traditional Chinese herbal medicine, have been used for a long time to management of dermatological conditions, such as skin inflammation and melanogenesis. Eupafolin, a functional flavonoid isolated from Phyla nodiflora, is an herbal tea constituent and possesses anti-inflammatory and anticancer activities. However, molecular mechanisms of eupafolin-mediated antimelanogenesis remain unknown. We thus focused on its antimelanogenesis effects in B16F10 mouse melanoma cells. MATERIAL AND METHODS B16F10 cells were treated with eupafolin (0.01, 0.1, 1, and 10μM) in a dose-escalation-dependent manner for the determination of melanin, tyrosinase activity and melanogenesis protein levels by ELISA or western blot analysis. RESULTS Eupafolin treatment significantly reduced cellular melanin content and tyrosinase activity in a dose-dependent manner (P<0.05), and no cytotoxic effects were observed. Eupafolin was associated with reduction in the levels of phospho-cAMP response element-binding protein and microphthalmia-associated transcription factor (MITF), and downregulation of tyrosinase synthesis and tyrosinase-related protein expression, leading to inhibit melanin production. In addition, eupafolin significantly induced the phosphorylation of ERK1/2 and p38 MAPK, whereas the decreased effect was observed in the phosphorylation of Akt. Moreover, inhibitors of these signals recovered or attenuated the inhibitory effects of eupafolin on melanogenesis. CONCLUSIONS Our results seem that inhibition of Akt and activation of phospho-ERK or p38 MAPK may lead to the suppression of melanogenesis in eupafolin-treated B16F10 mouse melanoma cells.
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Affiliation(s)
- Horng-Huey Ko
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yao-Chang Chiang
- Center for Drug Abuse and Addiction, China Medical University Hospital, Taichung, Taiwan.; China Medical University, Taichung, Taiwan
| | - Ming-Horng Tsai
- Department of Pediatrics, Division of Neonatology and Pediatric Hematology/Oncology, Chang Gung Memorial Hospital, Yunlin, Taiwan
| | - Chan-Jung Liang
- Department of Nutrition and Health Sciences, Chang-Gung Institute of Technology, Taoyuan, Taiwan.; Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Lee-Fen Hsu
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chia-Yi, Taiwan
| | - Shu-Yu Li
- Department of Pharmacy, College of Pharmacy & Health Care, Tajen University, Taiwan
| | - Moo-Chin Wang
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Feng-Lin Yen
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Chiang-Wen Lee
- Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Department of Nursing, Division of Basic Medical Sciences, Chang Gung University of Science and Technology, Chia-Yi, Taiwan; Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Chia-Yi, Taiwan.
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Kim A, Yim NH, Im M, Jung YP, Liang C, Cho WK, Ma JY. Ssanghwa-tang, an oriental herbal cocktail, exerts anti-melanogenic activity by suppression of the p38 MAPK and PKA signaling pathways in B16F10 cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 13:214. [PMID: 23981281 PMCID: PMC3765811 DOI: 10.1186/1472-6882-13-214] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 08/27/2013] [Indexed: 01/03/2023]
Abstract
Background Ssanghwa-tang (SHT) is a widely used medication for the treatment of fatigue, pain, inflammation, hypothermia, erectile dysfunction, cancer, and osteoporosis in Asia, however, role of SHT on the melanin synthesis has not been checked previously. Thus, the present study was designed to determine the effect of SHT on α-melanocyte stimulating hormone (α-MSH)-induced melanogensis and its mechanisms of action in murine B16F10 melanoma cells. Method Cellular melanin content and tyrosinase activity in murine B16F10 melanoma cells were determined after α-MSH stimulation with or without pre-treatment of SHT at the concentration of 250 and 500 μg/ml. Expression level of tyrosinase, tyrosinase-related protein 1 (TRP-1), TRP-2, microphthalmia-associated transcription factor (MITF), and activation of c-AMP-dependent protein kinase (PKA), c-AMP-related element binding protein (CREB), and mitogen-activated protein kinases (MAPKs) were examined by Western blot analysis. Results SHT significantly inhibited α-MSH-induced melanin synthesis and tyrosinase activity, and also decreased α-MSH-induced expression of MITF, tyrosinase, and TRP-1. In addition, SHT remarkably suppressed tyrosinase, CRE, and MITF luciferase reporter activity in a resting state as well as in α-MSH-stimulating condition. Phosphorylation of p38 MAPK by α-MSH stimulation was efficiently blocked by SHT pre-treatment. Moreover, SHT as an herbal cocktail showed synergistic anti-melanogenic effect compared with that of each single constituent herb. Conclusion SHT efficiently inhibited c-AMP-induced melanin synthesis in B16F10 cells via suppression of PKA and p38 MAPK signaling pathways and subsequently decreased the level of CREB phosphorylation, MITF, and melanogenic enzymes. These results indicate that SHT may be useful as herbal medicine for treating hyperpigmentation and cosmetics as a skin-whitening agent.
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26
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Melanogenesis Inhibitor(s) from Phyla nodiflora Extract. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:867494. [PMID: 23304221 PMCID: PMC3524650 DOI: 10.1155/2012/867494] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/07/2012] [Accepted: 10/14/2012] [Indexed: 11/17/2022]
Abstract
Overexpression of tyrosinase can cause excessive production of melanin and lead to hyperpigmentation disorders, including melasma and freckles. Recently, agents obtained from plants are being used as alternative medicines to downregulate tyrosinase synthesis and decrease melanin production. Phyla nodiflora Greene (Verbenaceae) is used as a folk medicine in Taiwanese for treating and preventing inflammatory diseases such as hepatitis and dermatitis. However, the antimelanogenesis activity and molecular biological mechanism underlying the activity of the methanolic extract of P. nodiflora (PNM) have not been investigated to date. Our results showed that PNM treatment was not cytotoxic and significantly reduced the cellular melanin content and tyrosinase activity in a dose-dependent manner (P < 0.05). Further, PNM exhibited a significant antimelanogenesis effect (P < 0.05) by reducing the levels of phospho-cAMP response element-binding protein and microphthalmia-associated transcription factor (MITF), inhibiting the synthesis of tyrosinase, tyrosinase-related protein-1 (TRP-1), and TRP-2, and decreasing the cellular melanin content. Moreover, PNM significantly activated the phosphorylation of mitogen-activated protein kinases, including phospho-extracellular signal-regulated kinase, c-Jun N-terminal kinase, and phospho-p38, and inhibited the synthesis of MITF, thus decreasing melanogenesis. These properties suggest that PNM could be used as a clinical and cosmetic skin-whitening agent to cure and/or prevent hyperpigmentation.
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