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Yang J, Zhang L, Sun S, Zhang S, Ding Q, Chai G, Yu W, Zhao T, Shen L, Gao Y, Liu W, Ding C. A dihydromyricetin-loaded phellinus igniarius polysaccharide/l-arginine modified chitosan-based hydrogel for promoting wound recovery in diabetic mice via JNK and TGF-β/Smad signaling pathway. Int J Biol Macromol 2024; 259:129124. [PMID: 38176509 DOI: 10.1016/j.ijbiomac.2023.129124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
The wound of diabetes has long-term excessive inflammation leading to wound fibrosis and scar formation. In the process of diabetic wound healing, good wound dressing is required for intervention. In this study, we designed a dihydromyricetin-loaded hydrogel (PCD) based on phellinus igniarius polysaccharide and l-arginine modified chitosan as an alternative material to promote diabetes wound healing. PCD had a uniform porous structure, good thermal stability, excellent mechanical properties, high water absorption, excellent antioxidant and anti-inflammatory activities and good biocompatibility and biodegradability. In addition, in the full-thickness skin trauma model of diabetes, PCD significantly inhibited the JNK signaling pathway to reduce inflammatory response, and significantly down-regulated the expression of TGF-β1, Smad2, Smad3 and Smad4 to directly inhibit the TGF-β/Smad signaling pathway to accelerate wound healing and slow down scar formation in diabetes mice. Therefore, PCD has a broad application prospect in promoting diabetes wound healing.
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Affiliation(s)
- Jiali Yang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Lifeng Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Shuwen Sun
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Shuai Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Qiteng Ding
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Guodong Chai
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Weimin Yu
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Ting Zhao
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Liqian Shen
- Jilin Province Jianwei Natural Biotechnology Co., Ltd., Baishan 134600, China
| | - Yang Gao
- Jilin Province Jianwei Natural Biotechnology Co., Ltd., Baishan 134600, China
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China.
| | - Chuanbo Ding
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China.
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Zeng T, Song Y, Qi S, Zhang R, Xu L, Xiao P. A comprehensive review of vine tea: Origin, research on Materia Medica, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116788. [PMID: 37343650 DOI: 10.1016/j.jep.2023.116788] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/24/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vine tea is a popular folk tea that has been consumed in China for more than 1200 years. It is often used in ethnic medicine by ethnic groups in southwest China with at least 35 aliases in 10 provinces. In coastal areas, vine tea is mostly used to treat heatstroke, aphtha, aphonia, toothache, etc. In contrast, in the southwest inland regions, vine tea is mostly used to clear away heat and toxic materials, antiphlogosis and relieving sore-throat, lowering blood pressure and lipid levels, and alleviating fatigue. Three main species have been used as the source of vine tea, Nekemias grossedentata, Nekemias cantonensis and Nekemias megalophylla. Among them, the leaves of Nekemias grossedentata were considered as new food resource in complicance with regulations, according to the Food Safety Standards published by the Monitoring and Evaluation Department of the National Health and Family Planning Commission in China. AIM OF THE STUDY At present, the comprehensively summary of Materia Medica on the history and source of vine tea is currently unavailable. The current article summed up the Materia Medica, species origin and pharmacological effects of all 3 major species used in vine tea to fill the knowledge gaps. We also aim to provide a reference for future research on historical textual, resource development and medicinal utilization of vine tea. MATERIALS AND METHODS Adhering to the literature screening methodology outlined by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), this review encompasses 148 scholarly research papers from three database, paper ancient books, local chronicles and folklore through field investigations. We then comprehensively summarized and discussed research progresses in scientific and application studies of vine tea. RESULTS The historical records indicated that vine tea could have been used as early as Southern and Northern Dynasties (AC 420-589). Nekemias grossedentata, Nekemias cantonensis and Nekemias megalophylla, were used to considered as vine tea in the ethnic medicine. The main phytochemicals found in three plants are flavonoids, polyphenols and terpenoids, among which dihydromyricetin (DHM) is the most important and most studied active substance. The key words "Ampelopsis grossedentata" (Synonym of Nekemias grossedentata) and "dihydromyricetin/DHM" showed the highest frequency over the last 27 year based on the research trend analysis. And the ethnopharmacology studies drawn the main activities of vine tea are antioxidant, antibacterial, hepatoprotective, neuroprotective and anti-atherosclerosis activities. CONCLUSIONS This review systematically summarized and discussed vine tea from the following five aspects, history, genetic relationship, phytochemistry, research trend and ethnopharmacology. Vine tea has a long historical usage in Chinese ethnic medicine. Its outstanding therapeutic efficacies have attracted extensive attention in other places in the world at present. Nekemias cantonensis and Nekemias megalophylla are quite similar to Nekemias grossedentata in terms of many aspects. However, the current research has a narrow focus on mainly Nekemias grossedentata and DHM. We propose that future studies could be carried out to determine the synergistic effect of multi-components and multi-targets of vine tea including all 3 species to provide valuable knowledge.
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Affiliation(s)
- Tiexin Zeng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Yanjun Song
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Shunyao Qi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Ruyue Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Lijia Xu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Peigen Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
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Fu C, Fu X, Li F, Li Z, Wang A, Jiang S, Liu C, Wang H. Integrated microRNA-mRNA analysis reveals a possible molecular mechanism of enteritis susceptibility in Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2023; 136:108699. [PMID: 36935044 DOI: 10.1016/j.fsi.2023.108699] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/06/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Enteritis is one of the main diseases affecting Pacific whiteleg shrimp (Litopenaeus vannamei) in recent years, and it has resulted in huge losses to the aquaculture industry. Prior to this study, the molecular mechanism underlying enteritis in L. vannamei was unclear, and comprehensive multi-omics analysis had not been conducted. In this study, 1209 differentially expressed genes (DEGs) were identified from the hepatopancreas of L. vannamei with and without enteritis. Kyoto Encyclopedia of Genes and Genomes analysis showed that genes were significantly enriched in immune, metabolic, and endocrine regulatory pathways. Forty-eight significantly different microRNAs (miRNAs) were identified in the miRNA-Seq analysis. Further functional annotation analysis showed that the regulatory pathway of target gene enrichment of differentially expressed miRNAs was consistent with DEGs. Through miRNA-mRNA integration analysis, 47 meaningful miRNA-mRNA pairs were obtained, of which melanogenesis and pancreatic secretion were considered key pathways. Subsequent miRNA-mRNA interaction network analysis revealed that mja-miR-6493-3p, Mja-miR-6494, novel-198, novel-272, novel-261, novel-200, novel-183, novel-184, novel-237, and novel-192 may be key miRNAs involved in the regulation of these two signaling pathways. Finally, the RAS signaling pathway was found to inhibit the translation level of proteins in the hepatopancreas. These results suggest that target gene integration analysis of mRNA-miRNA can reveal the molecular mechanism underlying enteritis in L. vannamei and also provide valuable new insights for resisting enteritis.
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Affiliation(s)
- Chunpeng Fu
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, 262700, China.
| | - Xiaopeng Fu
- Marine and Fishery Supervision Detachment of Rizhao City, Rizhao, 276800, China
| | - Fajun Li
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, 262700, China
| | - Zongzhen Li
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, 262700, China
| | - Aili Wang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, 262700, China
| | - ShanShan Jiang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, 262700, China
| | - Chunqiao Liu
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang, 262700, China
| | - Hui Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, 271018, China
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Li J, Jiang S, Huang C, Yang X. Atraric Acid Ameliorates Hyperpigmentation through the Downregulation of the PKA/CREB/MITF Signaling Pathway. Int J Mol Sci 2022; 23:ijms232415952. [PMID: 36555593 PMCID: PMC9788525 DOI: 10.3390/ijms232415952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Atraric acid (AA) is derived from lichens and is widely used in perfumes for its desirable scent. It has been reported as having anti-inflammatory and antioxidant activity. Hyperpigmentation is the underlying cause of a variety of dermatological diseases that have a significant impact on patients' quality of life and are frequently difficult to treat. This study aimed to explore the inhibitory effects of AA on hyperpigmentation in vitro and in vivo and its potential molecular mechanisms. The cytological results revealed that at a dose of 250 μM, AA may reduce melanin content and tyrosinase levels without causing cytotoxicity. Furthermore, the expression of melanocortin-1 receptor (MC1R), phosphorylated protein kinase A (pPKA) and phosphorylated cAMP response element binding protein (pCREB) were downregulated in AA-administrated cells. In vivo, histological analysis showed that AA could inhibit melanin production and tyrosinase activity, and 3% AA had the best activity, with almost no side effects. Furthermore, the results of Western blot analysis and RT-PCR suggested that AA may suppress the mRNA transcription of microphthalmia-associated transcription factor (MITF) protein and tyrosine protease by decreasing the expression of MC1R, consequently decreasing the phosphorylation of PKA and CREB. Finally, the MC1R inhibitor MSG606 verified the hypothesis that AA suppresses melanin formation by downregulating the PKA/CREB/MITF signaling pathway. Taken together, our study offers valuable information for the development of AA as a possible ingredient in skin-lightening cosmeceuticals and hyperpigmentation inhibitors.
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Zhao N, Kong H, Liu H, Shi Q, Qi X, Chen Q. A network pharmacology approach to evaluate the synergistic effect of dihydromyricetin and myricitrin in vine tea on the proliferation of B16F10 cells. Front Nutr 2022; 9:993133. [PMID: 36185647 PMCID: PMC9524360 DOI: 10.3389/fnut.2022.993133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022] Open
Abstract
Aim of the study Although vine tea has demonstrated broad-spectrum anti-cancer properties, its main active compounds, dihydromyricetin (DMY) and myricitrin (MYT), exert weaker effects than the tea extracts. This study aimed to investigate the synergistic inhibitory effects of DMY and MYT on B16F10 cell proliferation and their synergistic inhibitory effects. Methods The effect of vine tea extracts (VTEs) and their active compounds on B16F10 cells was analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, fluorescence staining, and flow cytometry. The synergistic effects were calculated by the combination index (CI), and its mechanism was discussed by network pharmacology. Results Different VTEs varied in their inhibition of B16F10 cell growth, with IC50 values ranging from 4.45 to 12.95 μg/mL, Among these, Guangzhou Qingyuan (Level 2), appeared to have the most potent inhibitory effect. The IC50 value of mix-use of DMY and MYT was 19.94∼64.4 μM, of which DMY: MYT = 8:1 had the minimum IC50 value of 19.94 μM. Combinations in the 1:1∼8:1 range had stronger effects than the isolated active compound. When they were mixed at the ratio of 1:4∼8:1, CI < 1, showing a synergistic effect. The combination of DMY and MYT also significantly inhibited the tyrosinase activity in B16F10 cells, consistent with its impact on cell proliferation. The eight potential targets were identified by network pharmacology regulating melanin metabolism, tyrosine metabolism, and melanogenesis signaling. According to the analysis of protein-protein interactions, TP53, TNF, and TYR might be critical targets for preventing and treating melanoma. Conclusion We found that DMY and MYT induced apoptosis of B16F10 cells, and their combined application had a significant synergistic effect. The present findings indicated that vine tea had a multi-pathway and multi-target impact on the prevention and treatment of melanoma.
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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: 12] [Impact Index Per Article: 6.0] [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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Liu CY, Sun YY, Wang SQ, Jia YQ, Wang HX, Pan LC, Zhu ZY. Dihydromyricetin from Ampelopsis grossedentata and its derivatives: Structural characterization and anti-hepatocellular carcinoma activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Song Y, Chen S, Li L, Zeng Y, Hu X. The Hypopigmentation Mechanism of Tyrosinase Inhibitory Peptides Derived from Food Proteins: An Overview. Molecules 2022; 27:molecules27092710. [PMID: 35566061 PMCID: PMC9103514 DOI: 10.3390/molecules27092710] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/19/2022] [Accepted: 04/21/2022] [Indexed: 12/04/2022] Open
Abstract
Skin hyperpigmentation resulting from excessive tyrosinase expression has long been a problem for beauty lovers, which has not yet been completely solved. Although researchers are working on finding effective tyrosinase inhibitors, most of them are restricted, due to cell mutation and cytotoxicity. Therefore, functional foods are developing rapidly for their good biocompatibility. Food-derived peptides have been proven to display excellent anti-tyrosinase activity, and the mechanisms involved mainly include inhibition of oxidation, occupation of tyrosinase’s bioactive site and regulation of related gene expression. For anti-oxidation, peptides can interrupt the oxidative reactions catalyzed by tyrosinase or activate an enzyme system, including SOD, CAT, and GSH-Px to scavenge free radicals that stimulate tyrosinase. In addition, researchers predict that peptides probably occupy the site of the substrate by chelating with copper ions or combining with surrounding amino acid residues, ultimately inhibiting the catalytic activity of tyrosinase. More importantly, peptides reduce the tyrosinase expression content, primarily through the cAMP/PKA/CREB pathway, with PI3K/AKT/GSK3β, MEK/ERK/MITF and p38 MAPK/CREB/MITF as side pathways. The objective of this overview is to recap three main mechanisms for peptides to inhibit tyrosinase and the emerging bioinformatic technologies used in developing new inhibitors.
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Affiliation(s)
- Yuqiong Song
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; (Y.S.); (S.C.); (L.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Shengjun Chen
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; (Y.S.); (S.C.); (L.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Laihao Li
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; (Y.S.); (S.C.); (L.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Yaoxun Zeng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China;
| | - Xiao Hu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; (Y.S.); (S.C.); (L.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
- Collaborative Innovation Center of Provincial and Ministerial Co-Construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian 116034, China
- Correspondence:
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Sun Y, Liu S, Yang S, Chen C, Yang Y, Lin M, Liu C, Wang W, Zhou X, Ai Q, Wang W, Chen N. Mechanism of Dihydromyricetin on Inflammatory Diseases. Front Pharmacol 2022; 12:794563. [PMID: 35115939 PMCID: PMC8804380 DOI: 10.3389/fphar.2021.794563] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/30/2021] [Indexed: 12/21/2022] Open
Abstract
Inflammation plays a crucial role in a variety of diseases, including diabetes, arthritis, asthma, Alzheimer’s disease (AD), acute cerebral stroke, cancer, hypertension, and myocardial ischemia. Therefore, we need to solve the problem urgently for the study of inflammation-related diseases. Dihydromyricetin (DHM) is a flavonoid mainly derived from Nekemias grossedentata (Hand.-Mazz.) J.Wen and Z.L.Nie (N.grossedentata). DHM possesses many pharmacological effects, including anti-inflammatory (NLRP-3, NF-κB, cytokines, and neuroinflammation), antioxidant, improving mitochondrial dysfunction, and regulating autophagy and so on. In this review, we consulted the studies in the recent 20 years and summarized the mechanism of DHM in inflammation-related diseases. In addition, we also introduced the source, chemical structure, chemical properties, and toxicity of DHM in this review. We aim to deepen our understanding of DHM on inflammation-related diseases, clarify the relevant molecular mechanisms, and find out the problems and solutions that need to be solved urgently. Providing new ideas for DHM drug research and development, as well as broaden the horizons of clinical treatment of inflammation-related diseases in this review. Moreover, the failure of clinical transformation of DHM poses a great challenge for DHM as an inflammation related disease.
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Affiliation(s)
- Yang Sun
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Shasha Liu
- Pharmacy Department, Xiangtan Central Hospital, Xiangtan, China
| | - Songwei Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chen Chen
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yantao Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Meiyu Lin
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chao Liu
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd, Zhangjiajie, China
| | - Wenmao Wang
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd, Zhangjiajie, China
| | - Xudong Zhou
- TCM and Ethnomedicine Innovation and Development International Laboratory, Innovative Materia Medica Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Qidi Ai
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| | - Wei Wang
- TCM and Ethnomedicine Innovation and Development International Laboratory, Innovative Materia Medica Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| | - Naihong Chen
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
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Lim SJ, Min DJ, Kim S, Lee J, Lee ES, Kim H, Cho SY, Beak HS, Lee CS, Nam SJ, Ko J. Pseudoalteromone A, a Ubiquinone Derivative from Marine Pseudoalteromonas spp., Suppresses Melanogenesis. Mar Drugs 2021; 19:612. [PMID: 34822483 PMCID: PMC8618130 DOI: 10.3390/md19110612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 02/08/2023] Open
Abstract
An ubiquinone derivative, pseudoalteromone A (1), has been isolated from two marine-derived Pseudoalteromonas spp., APmarine002 and ROA-050, and its anti-melanogenesis activity was investigated. The anti-melanogenic capacity of pseudoalteromone A was demonstrated by assessing the intracellular and extracellular melanin content and cellular tyrosinase activity in the B16 cell line, Melan-a mouse melanocyte cell line, and MNT-1 human malignant melanoma cell line. Treatment with pseudoalteromone A (40 μg/mL) for 72 h reduced α-melanocyte-stimulating hormone (α-MSH)-induced intracellular melanin production by up to 44.68% in B16 cells and 38.24% in MNT-1 cells. Notably, pseudoalteromone A induced a concentration-dependent reduction in cellular tyrosinase activity in B16 cell, and Western blot analyses showed that this inhibitory activity was associated with a significant decrease in protein levels of tyrosinase and tyrosinase-related protein 1 (Tyrp-1), suggesting that pseudoalteromone A exerts its anti-melanogenesis activity through effects on melanogenic genes. We further evaluated the skin-whitening effect of pseudoalteromone A in the three-dimensional (3D) pigmented-epidermis model, MelanoDerm, and visualized the 3D distribution of melanin by two-photon excited fluorescence imaging in this human skin equivalent. Collectively, our findings suggest that pseudoalteromone A inhibits tyrosinase activity and expression and that this accounts for its anti-melanogenic effects in melanocytes.
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Affiliation(s)
- Su-Jin Lim
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam 13135, Korea;
| | - Dae-jin Min
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea; (D.-j.M.); (E.-S.L.); (H.K.); (S.-Y.C.); (H.-S.B.)
| | - Sohee Kim
- The Graduate School of Industrial Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea;
| | - Jihye Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea;
- Laboratories of Marine New Drugs, REDONE Seoul, Seoul 08594, Korea
| | - Eun-Soo Lee
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea; (D.-j.M.); (E.-S.L.); (H.K.); (S.-Y.C.); (H.-S.B.)
| | - Hyuk Kim
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea; (D.-j.M.); (E.-S.L.); (H.K.); (S.-Y.C.); (H.-S.B.)
| | - Sung-Yoen Cho
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea; (D.-j.M.); (E.-S.L.); (H.K.); (S.-Y.C.); (H.-S.B.)
| | - Heung-Soo Beak
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea; (D.-j.M.); (E.-S.L.); (H.K.); (S.-Y.C.); (H.-S.B.)
| | - Chang-Seok Lee
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam 13135, Korea;
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea;
| | - Jaeyoung Ko
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea; (D.-j.M.); (E.-S.L.); (H.K.); (S.-Y.C.); (H.-S.B.)
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11
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Lim HY, Kim E, Park SH, Hwang KH, Kim D, Jung YJ, Kopalli SR, Hong YD, Sung GH, Cho JY. Antimelanogenesis Effects of Theasinensin A. Int J Mol Sci 2021; 22:ijms22147453. [PMID: 34299073 PMCID: PMC8305159 DOI: 10.3390/ijms22147453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/01/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022] Open
Abstract
Theasinensin A (TSA) is a major group of catechin dimers mainly found in oolong tea and black tea. This compound is also manufactured with epigallocatechin gallate (EGCG) as a substrate and is refined after the enzyme reaction. In previous studies, TSA has been reported to be effective against inflammation. However, the effect of these substances on skin melanin formation remains unknown. In this study, we unraveled the role of TSA in melanogenesis using mouse melanoma B16F10 cells and normal human epidermal melanocytes (NHEMs) through reverse transcription polymerase chain reaction (RT-PCR), Western blotting analysis, luciferase reporter assay, and enzyme-linked immunosorbent assay analysis. TSA inhibited melanin formation and secretion in α-melanocyte stimulating hormone (α-MSH)-induced B16F10 cells and NHEMs. TSA down-regulated the mRNA expression of tyrosinase (Tyr), tyrosinase-related protein 1 (Tyrp1), and Tyrp2, which are all related to melanin formation in these cells. TSA was able to suppress the activities of certain proteins in the melanocortin 1 receptor (MC1R) signaling pathway associated with melanin synthesis in B16F10 cells: cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB), protein kinase A (PKA), tyrosinase, and microphthalmia-associated transcription factor (MITF). We also confirmed α-MSH-mediated CREB activities through a luciferase reporter assay, and that the quantities of cAMP were reduced by TSA in the enzyme linked immunosorbent assay (ELISA) results. Based on these findings, TSA should be considered an effective inhibitor of hyperpigmentation.
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Affiliation(s)
- Hye Yeon Lim
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Korea; (H.Y.L.); (S.H.P.)
| | - Eunji Kim
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea;
| | - Sang Hee Park
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Korea; (H.Y.L.); (S.H.P.)
| | - Kyung Hwan Hwang
- Basic Research & Innovation Division, R&D Center, AmorePacific Corporation, Yongin 17074, Korea; (K.H.H.); (D.K.); (Y.D.H.)
| | - Donghyun Kim
- Basic Research & Innovation Division, R&D Center, AmorePacific Corporation, Yongin 17074, Korea; (K.H.H.); (D.K.); (Y.D.H.)
| | - You-Jung Jung
- Biological Resources Utilization Department, National Institute of Biological Resources, Incheon 22689, Korea;
| | | | - Yong Deog Hong
- Basic Research & Innovation Division, R&D Center, AmorePacific Corporation, Yongin 17074, Korea; (K.H.H.); (D.K.); (Y.D.H.)
| | - Gi-Ho Sung
- Department of Microbiology, Biomedical Institute of Mycological Resource, International St. Mary’s Hospital and College of Medicine, Catholic Kwandong University, Simgokro, 100 Gil, 7, Seo-gu, Incheon 22711, Korea
- Correspondence: (G.-H.S.); (J.Y.C.); Tel.: +82-32-290-2772 (G.-H.S.); +82-31-290-7868 (J.Y.C.)
| | - Jae Youl Cho
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Korea; (H.Y.L.); (S.H.P.)
- Department of Integrative Biotechnology and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea;
- Correspondence: (G.-H.S.); (J.Y.C.); Tel.: +82-32-290-2772 (G.-H.S.); +82-31-290-7868 (J.Y.C.)
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12
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IgE-Induced Mast Cell Activation Is Suppressed by Dihydromyricetin through the Inhibition of NF-κB Signaling Pathway. Molecules 2021; 26:molecules26133877. [PMID: 34201934 PMCID: PMC8270306 DOI: 10.3390/molecules26133877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 12/03/2022] Open
Abstract
Mast cells play a crucial role in the pathogenesis of type 1 allergic reactions by binding to IgE and allergen complexes and initiating the degranulation process, releasing pro-inflammatory mediators. Recently, research has focused on finding a stable and effective anti-allergy compound to prevent or treat anaphylaxis. Dihydromyricetin (DHM) is a flavonoid compound with several pharmacological properties, including free radical scavenging, antithrombotic, anticancer, and anti-inflammatory activities. In this study, we investigated the anti-allergic inflammatory effects and the underlying molecular mechanism of DHM in the DNP-IgE-sensitized human mast cell line, KU812. The cytokine levels and mast cell degranulation assays were determined by enzyme-linked immunosorbent assay (ELISA). The possible mechanism of the DHM-mediated anti-allergic signaling pathway was analyzed by western blotting. It was found that treatment with DHM suppressed the levels of inflammatory cytokines TNF-α and IL-6 in DNP-IgE-sensitized KU812 cells. The anti-allergic inflammatory properties of DHM were mediated by inhibition of NF-κB activation. In addition, DHM suppressed the phosphorylation of signal transducer and activator of transcription 5 (STAT5) and mast cell-derived tryptase production. Our study shows that DHM could mitigate mast cell activation in allergic diseases.
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13
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Ko SC, Lee SH. Protocatechuic Aldehyde Inhibits α-MSH-Induced Melanogenesis in B16F10 Melanoma Cells via PKA/CREB-Associated MITF Downregulation. Int J Mol Sci 2021; 22:ijms22083861. [PMID: 33917915 PMCID: PMC8068260 DOI: 10.3390/ijms22083861] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 11/16/2022] Open
Abstract
Protocatechuic aldehyde (PA) is a naturally occurring phenolic compound that is a potent inhibitor of mushroom tyrosinase. However, the molecular mechanisms of the anti-melanogenesis activity of PA have not yet been reported. The aim of the current study was to clarify the melanogenesis inhibitory effects of PA and its molecular mechanisms in murine melanoma cells (B16F10). We first predicted the 3D structure of tyrosinase and used a molecular docking algorithm to simulate binding between tyrosinase and PA. These molecular modeling studies calculated a binding energy of -527.42 kcal/mol and indicated that PA interacts with Cu400 and 401, Val283, and His263. Furthermore, PA significantly decreased α-MSH-induced intracellular tyrosinase activity and melanin content in a dose-dependent manner. PA also inhibited key melanogenic proteins such as tyrosinase, tyrosinase-related protein 1 (TRP-1), and TRP-2 in α-MSH-stimulated B16F10 cells. In addition, PA decreased MITF expression levels by inhibiting phosphorylation of cAMP response element-binding protein (CREB) and cAMP-dependent protein kinase A (PKA). These results demonstrate that PA can effectively suppress melanin synthesis in melanoma cells. Taken together, our results show that PA could serve as a potential inhibitor of melanogenesis, and hence could be explored as a possible skin-lightening agent.
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Affiliation(s)
- Seok-Chun Ko
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea;
| | - Seung-Hong Lee
- Department of Pharmaceutical Engineering and Medical Science, Soonchunhyang University, Asan 31538, Korea
- Correspondence: ; Tel.: +82-41-530-4980; Fax: +82-41-530-3085
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14
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Dalcin AJF, Roggia I, Felin S, Vizzotto BS, Mitjans M, Vinardell MP, Schuch AP, Ourique AF, Gomes P. UVB photoprotective capacity of hydrogels containing dihydromyricetin nanocapsules to UV-induced DNA damage. Colloids Surf B Biointerfaces 2020; 197:111431. [PMID: 33142255 DOI: 10.1016/j.colsurfb.2020.111431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/03/2020] [Accepted: 10/17/2020] [Indexed: 11/16/2022]
Abstract
We evaluate the effect of cationic nanocapsules containing dihydromyricetin (DMY) flavonoid for safe topical use in photoprotection against UV-induced DNA damage. The stability was investigated for feasibility to produce hydrogels containing cationic nanocapsules of the flavonoid DMY (NC-DMY) for 90 days under three different storage conditions (4 ± 2 °C, 25 ± 2 °C, and 40 ± 2 °C), as well as evaluation of skin permeation and its cytotoxicity in skin cell lines. The physicochemical and rheological characteristics were maintained during the analysis period under the different aforementioned conditions. However, at 25 °C and 40 °C, the formulations indicated yellowish coloration and DMY content reduction. Therefore, the ideal storage condition of 4 °C was adopted. DMY remained in the stratum corneum and the uppermost layers of the skin. Regarding safety, all formulations demonstrated to be safe for topical application. NC-DMY exhibited a 50% Solar Protection Factor (SPF-DNA) against DNA damage caused by UVB radiation and demonstrated 99.9% protection against DNA lesion induction. These findings establish a promising formulation containing nanoencapsulated DMY flavonoids with a photoprotective and antioxidant potential of eliminating reactive oxygen species formed by solar radiation.
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Affiliation(s)
- Ana Júlia F Dalcin
- Laboratory of Nanotechnology, Franciscan University, Santa Maria, Brazil; Nanosciences Post-Graduate Program in Nanosciences, Franciscan University, Santa Maria, Brazil.
| | - Isabel Roggia
- Laboratory of Nanotechnology, Franciscan University, Santa Maria, Brazil; Nanosciences Post-Graduate Program in Nanosciences, Franciscan University, Santa Maria, Brazil.
| | - Sabrina Felin
- Laboratory of Nanotechnology, Franciscan University, Santa Maria, Brazil.
| | - Bruno S Vizzotto
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil.
| | | | | | - André P Schuch
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil.
| | - Aline F Ourique
- Nanosciences Post-Graduate Program in Nanosciences, Franciscan University, Santa Maria, Brazil.
| | - Patrícia Gomes
- Nanosciences Post-Graduate Program in Nanosciences, Franciscan University, Santa Maria, Brazil.
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15
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Li X, Cao M, Ma W, Jia C, Li J, Zhang M, Liu C, Cao Z, Faruque MO, Hu X. Annotation of genes involved in high level of dihydromyricetin production in vine tea (Ampelopsis grossedentata) by transcriptome analysis. BMC PLANT BIOLOGY 2020; 20:131. [PMID: 32228461 PMCID: PMC7106717 DOI: 10.1186/s12870-020-2324-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Leaves of the medicinal plant Ampelopsis grossedentata, which is commonly known as vine tea, are used widely in the traditional Chinese beverage in southwest China. The leaves contain a large amount of dihydromyricetin, a compound with various biological activities. However, the transcript profiles involved in its biosynthetic pathway in this plant are unknown. RESULTS We conducted a transcriptome analysis of both young and old leaves of the vine tea plant using Illumina sequencing. Of the transcriptome datasets, a total of 52.47 million and 47.25 million clean reads were obtained from young and old leaves, respectively. Among 471,658 transcripts and 177,422 genes generated, 7768 differentially expressed genes were identified in leaves at these two stages of development. The phenylpropanoid biosynthetic pathway of vine tea was investigated according to the transcriptome profiling analysis. Most of the genes encoding phenylpropanoid biosynthesis enzymes were identified and found to be differentially expressed in different tissues and leaf stages of vine tea and also greatly contributed to the biosynthesis of dihydromyricetin in vine tea. CONCLUSIONS To the best of our knowledge, this is the first formal study to explore the transcriptome of A. grossedentata. The study provides an insight into the expression patterns and differential distribution of genes related to dihydromyricetin biosynthesis in vine tea. The information may pave the way to metabolically engineering plants with higher flavonoid content.
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Affiliation(s)
- Xiaohua Li
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
| | - Minhui Cao
- Department of Chemistry, College of Science, Huazhong Agriculture University, Wuhan, Hubei China
| | - Weibo Ma
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
| | - Caihua Jia
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei China
| | - Jinghuan Li
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
| | - Mingxing Zhang
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
| | - Changchun Liu
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
| | - Zhenzhen Cao
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei China
| | - Mohammad Omar Faruque
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xuebo Hu
- Laboratory of Natural Medicine and Molecular Engineering, Department of Medicinal Plant, College of Plant Science and Technology, Huazhong Agriculture University, Wuhan, Hubei China
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China
- National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation; Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China
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16
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Kang B, Kim Y, Park TJ, Kang HY. Dasatinib, a second-generation tyrosine kinase inhibitor, induces melanogenesis via ERK-CREB-MITF-tyrosinase signaling in normal human melanocytes. Biochem Biophys Res Commun 2020; 523:1034-1039. [PMID: 31973810 DOI: 10.1016/j.bbrc.2020.01.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 01/09/2020] [Indexed: 11/25/2022]
Abstract
Dasatinib, a second-generation tyrosine kinase inhibitor, is indicated for the therapy of imatinib-resistant leukemia and also for the treatment of solid cancers. Here, we report a novel effect of dasatinib of inducing differentiation in normal human melanocytes. Treatment with dasatinib significantly increased the melanin content and tyrosinase activity through the up-regulation of MITF and tyrosinase expressions. Consistently, dasatinib had clear stimulatory action in the pigmentation of ex vivo cultured skin. The molecular mechanism underlying the melanogenic effect of dasatinib was associated with the ERK-dependent phosphorylation of CREB. The ERK inhibitor PD98059 not only inhibited the phosphorylation of CREB but also abrogated dasatinib-induced melanocyte differentiation. These results demonstrate for the first time the capacity of dasatinib to induce differentiation in normal human melanocytes depending on the activation of ERK-CREB-MITF-tyrosinase signaling cascades.
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Affiliation(s)
- Bogyeong Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Science, The Graduate School, Ajou University, Suwon, South Korea
| | - Yeongeun Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Science, The Graduate School, Ajou University, Suwon, South Korea
| | - Tae Jun Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Science, The Graduate School, Ajou University, Suwon, South Korea.
| | - Hee Young Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Science, The Graduate School, Ajou University, Suwon, South Korea.
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17
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Liu D, Mao Y, Ding L, Zeng XA. Dihydromyricetin: A review on identification and quantification methods, biological activities, chemical stability, metabolism and approaches to enhance its bioavailability. Trends Food Sci Technol 2019; 91:586-597. [PMID: 32288229 PMCID: PMC7127391 DOI: 10.1016/j.tifs.2019.07.038] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/21/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dihydromyricetin (DMY) is an important plant flavonoid, which has received great attention due to its health-benefiting activities, including antioxidant, antimicrobial, anti-inflammatory, anticancer, antidiabetic and neuroprotective activities. DMY capsules have been sold in US as a nutraceutical supplement to prevent alcoholic hangovers. The major disadvantage associated with DMY is its chemical instability and poor bioavailability caused by the combined effects of its low solubility and poor membrane permeability. This limits its practical use in the food and pharmaceutical fields. SCOPE AND APPROACH The present paper gives an overview of the current methods for the identification and quantification of DMY. Furthermore, recent findings regarding the main biological properties and chemical stability of DMY, the metabolism of DMY as well as different approaches to increase DMY bioavailability in both aqueous and lipid phases are discussed. KEY FINDINGS AND CONCLUSIONS Current trends on identification and quantification of DMY have been focused on spectral and chromatographic techniques. Many factors such as heat, pH, metal ions, could affect the chemical stability of DMY. Despite the diverse biological effects of DMY, DMY faces with the problem of poor bioavailability. Utilization of different delivery systems including solid dispersion, nanocapsule, microemuslion, cyclodextrin inclusion complexes, co-crystallization, phospholipid complexes, and chemical or enzymatic acylation has the potential to improve both the solubility and bioavailability. DMY digested in laboratory animals undergoes reduction, dehydroxylation, methylation, glucuronidation, and sulfation. Novel DMY delivery systems and basic pharmacokinetic studies of encapsulated DMY on higher animals and humans might be required in the future.
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Affiliation(s)
- Dan Liu
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
- Corresponding author. Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China.
| | - Yiqin Mao
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Lijun Ding
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xin-An Zeng
- South China University of Technology, School of Food Science & Engineering, Guangzhou, 510640, Guangdong, PR China
- Corresponding author
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18
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Goodla L, Manubolu M, Pathakoti K, Jayakumar T, Sheu JR, Fraker M, Tchounwou PB, Poondamalli PR. Protective Effects of Ammannia baccifera Against CCl 4-Induced Oxidative Stress in Rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E1440. [PMID: 31018559 PMCID: PMC6517918 DOI: 10.3390/ijerph16081440] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/19/2019] [Accepted: 04/20/2019] [Indexed: 12/26/2022]
Abstract
Ammannia baccifera Linn. is commonly used as a traditional medicine in India and China. The antioxidant potential of an ethanolic extract of A. baccifera (EEAB; 250 mg/kg and 500 mg/kg) was evaluated against CCL4-induced toxicity in rats. Antioxidant activity was assessed by measuring the enzymatic and non-enzymatic antioxidants. Phytochemical constituents of EEAB were also analyzed by using UHPLC-QTOF-MS. EEAB treatment markedly reduced CCl4 effects on lipid peroxidation, cholesterol, triacylglycerides, and protein carbonyls. It increased the levels of phospholipids, total sulfhydryl, and antioxidant enzymes, which were reduced by CCl4 intoxication. Treatment with EEAB significantly alleviated the CCl4 effect on non-enzymatic antioxidants. Isoenzyme pattern analyses revealed that significant alterations in superoxide dismutase (SOD1), glutathione peroxidase (GPx2, GPx3), and catalase (CAT) occurred in rats that were exposed to CCl4 and restored post EEAB treatment. Moreover, CCl4-induced down regulation of SOD, CAT, and GPx gene expression was conversely counteracted by EEAB. Its bioactivity may be due to its incorporation of major compounds, such as chlorogenic acid, quercetin, protocatechuic acid, lamioside, crocetin, and khayasin C. These results suggest that EEAB may be used as a potent antioxidant and hepatoprotective agent since it is a rich source of flavonoids and phenolic compounds.
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Affiliation(s)
- Lavanya Goodla
- Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, India.
| | - Manjunath Manubolu
- Aquatic Ecology Laboratory, Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH 43212, USA.
| | - Kavitha Pathakoti
- Department of Biology, Jackson State University, Jackson, MS 39217, USA.
| | - Thanasekaran Jayakumar
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Jeon-Rong Sheu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Mike Fraker
- Aquatic Ecology Laboratory, Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH 43212, USA.
| | - Paul B Tchounwou
- Department of Biology, Jackson State University, Jackson, MS 39217, USA.
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19
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Dalcin AJF, Vizzotto BS, Bochi GV, Guarda NS, Nascimento K, Sagrillo MR, Moresco RN, Schuch AP, Ourique AF, Gomes P. Nanoencapsulation of the flavonoid dihydromyricetin protects against the genotoxicity and cytotoxicity induced by cationic nanocapsules. Colloids Surf B Biointerfaces 2019; 173:798-805. [DOI: 10.1016/j.colsurfb.2018.10.066] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/11/2018] [Accepted: 10/24/2018] [Indexed: 02/06/2023]
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20
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Zhang J, Chen Y, Luo H, Sun L, Xu M, Yu J, Zhou Q, Meng G, Yang S. Recent Update on the Pharmacological Effects and Mechanisms of Dihydromyricetin. Front Pharmacol 2018; 9:1204. [PMID: 30410442 PMCID: PMC6209623 DOI: 10.3389/fphar.2018.01204] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 10/02/2018] [Indexed: 12/19/2022] Open
Abstract
As the most abundant natural flavonoid in rattan tea, dihydromyricetin (DMY) has shown a wide range of pharmacological effects. In addition to the general characteristics of flavonoids, DMY has the effects of cardioprotection, anti-diabetes, hepatoprotection, neuroprotection, anti-tumor, and dermatoprotection. DMY was also applied for the treatment of bacterial infection, osteoporosis, asthma, kidney injury, nephrotoxicity and so on. These effects to some extent enrich the understanding about the role of DMY in disease prevention and therapy. However, to date, we still have no outlined knowledge about the detailed mechanism of DMY, which might be related to anti-oxidation and anti-inflammation. And the detailed mechanisms may be associated with several different molecules involved in cellular apoptosis, oxidative stress, and inflammation, such as AMP-activated protein kinase (AMPK), mitogen-activated protein kinase (MAPK), protein kinase B (Akt), nuclear factor-κB (NF-κB), nuclear factor E2-related factor 2 (Nrf2), ATP-binding cassette transporter A1 (ABCA1), peroxisome proliferator-activated receptor-γ (PPARγ) and so on. Here, we summarized the current pharmacological developments of DMY as well as possible mechanisms, aiming to push the understanding about the protective role of DMY as well as its preclinical assessment of novel application.
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Affiliation(s)
- Jingyao Zhang
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Pharmacology, School of Pharmacy, Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong, China
| | - Yun Chen
- Department of Pharmacology, School of Pharmacy, Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong, China
| | - Huiqin Luo
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Pharmacology, School of Pharmacy, Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong, China
| | - Linlin Sun
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Pharmacology, School of Pharmacy, Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong, China
| | - Mengting Xu
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Pharmacology, School of Pharmacy, Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong, China
| | - Jin Yu
- Department of Pharmacology, School of Pharmacy, Key Laboratory of Inflammation and Molecular Drug Target of Jiangsu Province, Nantong University, Nantong, China
| | - Qigang Zhou
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Guoliang Meng
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China
| | - Shengju Yang
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, China
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21
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Ha JH, Jeong YJ, Xuan SH, Lee JY, Park J, Park SN. Methyl-2-acetylamino-3-(4-hydroxyl-3,5-dimethoxybenzoylthio)propanoate suppresses melanogenesis through ERK signaling pathway mediated MITF proteasomal degradation. J Dermatol Sci 2018; 91:S0923-1811(18)30169-5. [PMID: 29735364 DOI: 10.1016/j.jdermsci.2018.04.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Microphthalmia-associated transcription factor (MITF) is regulated by expression and/or degradation pathway, controlling to the expression of melanogenic enzymes for melanin synthesis. Methyl-2-acetylamino-3-(4-hydroxyl-3,5-dimethoxybenzoylthio)propanoate (MAHDP) is reported to anti-melanogenesis effect but its mechanism remain unclear. OBJECTIVE To investigate the effects of MAHDP on melanogenesis and elucidate its mechanism. METHODS Tyrosinase activity, melanogenic proteins and gene expression levels were measured with MAHDP treatment in B16F1 cells, human melanocytes, reconstructed skin and clinical trial. RESULTS MAHDP attenuated melanin production in α-MSH (melanocyte stimulating hormone) stimulated-B16F1 cells. MAHDP decreased the expression of tyrosinase, tyrosinase-related protein-1 (TRP-1), and tyrosinase-related protein-2 (TRP-2). But, MADPH did not affect the phosphorylation of p38 MAPK, JNK and AKT, which are associated with the regulation of MITF expression. These results suggest that MITF downstream is regulated not transcriptionally but translationally. Treatment of MG132 (a proteasomal degradation inhibitor) almost abolished the decrease of MITF protein levels by MAHDP. Phosphorylation and ubiquitination of MITF for proteasomal degradation were increased by treatment of MAHDP. Treatment of PD98059 (an ERK phosphorylation inhibitor) abrogated ERK phosphorylation, downregulation of MITF and tyrosinase as well as the decrease of melanin contents by MAHDP. Therefore, the degradation of MITF proteins by MAHDP is regulated to the ERK signaling. Finally, MAHDP improved the pigmentation in human epidermal melanocytes, a UVB-irradiated the reconstructed skin model and clinical trial without cytotoxicity and skin irritation. CONCLUSION These results clearly demonstrate that MAHDP suppresses the expression of melanogenic enzymes through ERK phosphorylation-mediated MITF proteasomal degradation, and suggest that MAHDP may be efficient as a therapeutic agent for hyperpigmentation.
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Affiliation(s)
- Ji Hoon Ha
- Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Yoon Ju Jeong
- Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Song Hua Xuan
- Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Jae-Young Lee
- Daebong LS. Ltd., 692-8, Gojan-dong, Namdong-gu, Incheon 21697, Republic of Korea
| | - Jino Park
- Daebong LS. Ltd., 692-8, Gojan-dong, Namdong-gu, Incheon 21697, Republic of Korea
| | - Soo Nam Park
- Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea.
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22
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Wang B, Xiao Y, Yang X, He Y, Jing T, Wang W, Zhang J, Lin R. Protective effect of dihydromyricetin on LPS-induced acute lung injury. J Leukoc Biol 2018; 103:1241-1249. [PMID: 29522258 DOI: 10.1002/jlb.3ma0317-101rrr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 01/09/2018] [Accepted: 02/01/2018] [Indexed: 12/19/2022] Open
Abstract
Dihydromyricetin (DHM), a bioactive flavonoid component isolated from Ampelopsis grossedentata, is known to have anti-inflammatory effect, but the effect of DHM on acute lung injury (ALI) is largely unknown. Here, we investigated the effect of DHM on ALI and the underlying mechanism by bioinformatic analyses and animal experiments. We found that pretreatment with DHM ameliorated lung pathological changes and suppressed the inflammation response in lung tissues after LPS challenge. The potential targets of DHM were predicted by DDI-CPI and DRAR-CPI tools and analyzed using the STRING server to predict the functionally related signaling pathways, such as MAPK signaling. Molecular docking calculations indicated that DHM could be embedded tightly into the binding pocket of ERK, JNK, and p38. Furthermore, the activation of MAPK signaling induced by LPS was inhibited by DHM. In conclusion, these findings suggest that DHM may exert its protective effect on ALI by inhibiting MAPK signaling. The present study supports a potential clinical application for DHM in treating ALI and provides a novel design that combines in silico methods with in vivo experiments for drug research.
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Affiliation(s)
- Bo Wang
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Yunfang Xiao
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Xiaofeng Yang
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Yanhao He
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Ting Jing
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Weirong Wang
- Laboratory Animal Center, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Jiye Zhang
- School of Pharmacology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Rong Lin
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
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23
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Ling H, Zhu Z, Yang J, He J, Yang S, Wu D, Feng S, Liao D. Dihydromyricetin improves type 2 diabetes-induced cognitive impairment via suppressing oxidative stress and enhancing brain-derived neurotrophic factor-mediated neuroprotection in mice. Acta Biochim Biophys Sin (Shanghai) 2018; 50:298-306. [PMID: 29425256 DOI: 10.1093/abbs/gmy003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Indexed: 12/13/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) leads to cognitive impairment (CI), but there have been no effective pharmacotherapies or drugs for cognitive dysfunction in T2DM. Dihydromyricetin (DHM) is a natural flavonoid compound extracted from the leaves of Ampelopsis grossedentata and has various pharmacological effects including anti-oxidant and anti-diabetes. Thus, we investigated the effects of DHM on CI in T2DM mouse model and its possible mechanism. To induce T2DM, mice were fed with high-sugar and high-fat diet for 8 weeks, followed by a low dose streptozotocin (STZ) administration. After the successful induction of T2DM mouse model, mice were treated respectively with equal volume of saline (T2DM group), 125 mg/kg/d DHM (L-DHM group), or 250 mg/kg/d DHM (H-DHM group). After 16 weeks of DHM administration, the body weight (BW), fasting blood glucose, blood lipids, intraperitoneal glucose tolerance (IPGT), and cognitive function were determined. Then, alterations in the expressions of oxidative stress markers and brain-derived neurotrophic factor (BDNF) in the hippocampus were investigated. Our findings demonstrated that DHM could significantly ameliorate CI and reverse aberrant glucose and lipid metabolism in T2DM mice, likely through the suppression of oxidative stress and enhancement of BDNF-mediated neuroprotection. In conclusion, our results suggest that DHM is a promising candidate for the treatment of T2DM-induced cognitive dysfunction.
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Affiliation(s)
- Hongyan Ling
- Department of Physiology, School of Medicine, University of South China, Hengyang 421001, China
| | - Zemei Zhu
- Department of Physiology, School of Medicine, University of South China, Hengyang 421001, China
- Department of Medicine, Changde Vocational Technical College, Changde 415000, China
| | - Jihua Yang
- Department of Physiology, School of Medicine, University of South China, Hengyang 421001, China
| | - Jianqin He
- Department of Physiology, School of Medicine, University of South China, Hengyang 421001, China
| | - Sisi Yang
- Department of Physiology, School of Medicine, University of South China, Hengyang 421001, China
| | - Di Wu
- Department of Physiology, School of Medicine, University of South China, Hengyang 421001, China
| | - Shuidong Feng
- Department of Social Medicine and Health Service Management, School of Public Health, University of South China, Hengyang 421001, China
| | - Duanfang Liao
- Division of Stem Cell Regulation and Application, Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha 410000, China
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24
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Wang LX, Qian J, Zhao LN, Zhao SH. Effects of volatile oil from ginger on the murine B16 melanoma cells and its mechanism. Food Funct 2018; 9:1058-1069. [PMID: 29355275 DOI: 10.1039/c7fo01127j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this study, the inhibitory effects of volatile oil from ginger on melanogenesis and its antioxidant characteristics were investigated. The effects of volatile oil from ginger on cell proliferation, melanin content and tyrosinase activity were determined using a microplate reader. In addition, the expression of melanogenesis-related protein was determined by western blotting. The results indicate that the tested concentrates of volatile oil from ginger showed inhibitory effects on cell proliferation and melanogenesis. This revealed that volatile oil from ginger exhibited apparent capacities for scavenging ROS and lipid peroxidation. Furthermore, volatile oil from ginger improved the activities of GSH, SOD and CAT in B16 melanoma cells. These results demonstrated that volatile oil from ginger suppressed melanin synthesis through its antioxidant properties and the inhibitory effects on tyrosinase activity and melanogensis-related proteins. Hence, volatile oil from ginger could be used as an effective skin-whitening agent applied in food industry.
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Affiliation(s)
- Li-Xia Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education; Tianjin University of Science and Technology, No. 29 The Thirteen Road, Tianjin 300457, China.
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25
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Zhao L, Cai C, Wang J, Zhao L, Li W, Liu C, Guan H, Zhu Y, Xiao J. Dihydromyricetin Protects against Bone Loss in Ovariectomized Mice by Suppressing Osteoclast Activity. Front Pharmacol 2017; 8:928. [PMID: 29311931 PMCID: PMC5742133 DOI: 10.3389/fphar.2017.00928] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 12/07/2017] [Indexed: 12/21/2022] Open
Abstract
Dihydromyricetin (DMY), the main flavonoid component of Ampelopsis grossedentata, possesses pharmacological activities useful for treatment of diseases associated with inflammation and oxidative damage. Because osteoclasts are often involved in chronic low-grade systemic inflammation and oxidative damage, we hypothesized that DMY may be an effective treatment for osteoclast-related diseases. The effects of DMY on osteoclast formation and activity were examined in vitro. Female C57BL/6 mice were ovariectomized to mimic menopause-induced bone loss and treated with DMY, and femur samples were subjected to bone structure and histological analysis, serum biochemical indicators were also measured. DMY suppressed the activation of nuclear factor-κB, c-Fos and mitogen-activated protein kinase, and prevented production of reactive oxygen species. DMY decreased expression of osteoclast-specific genes, including Trap, Mmp-9, Cathepsin K, C-Fos, Nfatc1, and Rank. In addition, DMY prevented bone loss and decreased serum levels of tumor necrosis factor-α, interleukin-1β, and interleukin-6, and with a decrease in the ratio between receptor activator of nuclear factor-κB (RANK) ligand (RANKL) and osteoprotegerin (OPG) in vivo. These findings demonstrate that DMY attenuates bone loss and inhibits osteoclast formation and activity through modulation of multiple pathways both upstream and downstream of RANKL signaling. DMY may thus be a useful option for treatment of osteoclast-related diseases such as rheumatoid arthritis and osteoporosis.
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Affiliation(s)
- Libo Zhao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cong Cai
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Wang
- Department of Oncology, Renmin Hospital, Wuhan University, Wuhan, China
| | - Liming Zhao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weijin Li
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changyu Liu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hanfeng Guan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanli Zhu
- Department of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Xiao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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26
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Lee B, Moon KM, Lee BS, Yang JH, Park KI, Cho WK, Ma JY. Swertiajaponin inhibits skin pigmentation by dual mechanisms to suppress tyrosinase. Oncotarget 2017; 8:95530-95541. [PMID: 29221146 PMCID: PMC5707040 DOI: 10.18632/oncotarget.20913] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 08/10/2017] [Indexed: 12/30/2022] Open
Abstract
Many skin-whitening compounds target tyrosinase because it catalyzes two rate-limiting steps in melanin synthesis. Although many tyrosinase inhibitors are currently available for a skin-whitening purpose, undesirable adverse effects are also reported. Thus, numerous efforts have been made to develop safer tyrosinase inhibitors from natural products. In line with this, we tested fifty flavonoids, a group of naturally occurring antioxidants and metal chelators, and screened swertiajaponin as the strongest tyrosinase inhibitor in cell-free experiments. Swertiajaponin did not show cytotoxicity in B16F10, HaCat, and Hs27 cells and exhibited strong anti oxidative activity in experiments using the cell-free system and B16F10 cells. It markedly inhibited αMSH- or UVB-induced melanin accumulation in B16F10 cells and suppressed skin pigmentation in a human skin model. As underlying mechanisms, in silico and Lineweaver-Burk plot analyses exhibited that swertiajaponin may directly bind to and inhibit tyrosinase activity by forming multiple hydrogen bonds and hydrophobic interactions with the binding pocket of tyrosinase. In addition, western blotting results indicated that swertiajaponin inhibited oxidative stress-mediated MAPK/MITF signaling, leading to decrease in tyrosinase protein level. Together, swertiajaponin suppresses melanin accumulation by inhibiting both activity and protein expression levels of tyrosinase. Thus, it would be a novel additive for whitening cosmetics.
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Affiliation(s)
- Bonggi Lee
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
| | - Kyoung Mi Moon
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
| | - Bong-Seon Lee
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
| | - Ju-Hye Yang
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
| | - Kwang Il Park
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
| | - Won-Kyung Cho
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
| | - Jin Yeul Ma
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
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27
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Chen J, Liu S, Huang Z, Huang W, Li Q, Ye Y. Molecular inhibitory mechanism of dihydromyricetin on mushroom tyrosinase. J Biomol Struct Dyn 2017; 36:3740-3752. [PMID: 29067862 DOI: 10.1080/07391102.2017.1397059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Tyrosinase is the rate-limiting enzyme for controlling the production of melanin in the human body, and overproduction of melanin can lead to a variety of skin disorders. In this paper, the inhibitory kinetics of Dihydromyricetin (DHM) on tyrosinase and their binding mechanism were determined using spectroscopy, molecular docking, antioxidant assays, and chromatography. The spectroscopic results indicate that DHM reversibly inhibits tyrosinase in a mixed-type manner through a multiphase kinetic process with the IC50 of 849.88 μM. It is shown that DHM has a strong ability to quench the intrinsic fluorescence of tyrosinase mainly through a static quenching procedure, suggesting that a stable DHM-tyrosinase complex is generated. Molecular docking results suggest that the dominant conformation of DHM does not directly bind to the active site of tyrosinase. Moreover, the antioxidant assays demonstrate that DHM has powerful antioxidant and reducing capacity but does not have the ability to reduce dopachrome to L-DOPA. Interestingly, the results of spectroscopy and chromatography indicate that DHM is a substrate of tyrosinase but not a suicide substrate. The possible inhibitory mechanism is proposed, which will be helpful to design and search for tyrosinase inhibitors.
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Affiliation(s)
- Jianmin Chen
- a School of Pharmacy and Medical Technology , Putian University , Fujian , China
| | - Shiqi Liu
- a School of Pharmacy and Medical Technology , Putian University , Fujian , China
| | - Ziyao Huang
- a School of Pharmacy and Medical Technology , Putian University , Fujian , China
| | - Weiyue Huang
- a School of Pharmacy and Medical Technology , Putian University , Fujian , China
| | - Qinglian Li
- a School of Pharmacy and Medical Technology , Putian University , Fujian , China
| | - Yaling Ye
- a School of Pharmacy and Medical Technology , Putian University , Fujian , China
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28
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The Versatile Effects of Dihydromyricetin in Health. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:1053617. [PMID: 28947908 PMCID: PMC5602609 DOI: 10.1155/2017/1053617] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/27/2017] [Indexed: 01/02/2023]
Abstract
Dihydromyricetin is a flavonoid isolated from Ampelopsis grossedentata, which is traditionally used in China. Dihydromyricetin exhibits health-benefiting activities with minimum adverse effects. Dihydromyricetin has been demonstrated to show antioxidative, anti-inflammatory, anticancer, antimicrobial, cell death-mediating, and lipid and glucose metabolism-regulatory activities. Dihydromyricetin may scavenge ROS to protect against oxidative stress or potentiate ROS generation to counteract cancer cells selectively without any effects on normal cells. However, the low bioavailability of dihydromyricetin limits its potential applications. Recent research has gained positive and promising data. This review will discuss the versatile effects and clinical prospective of dihydromyricetin.
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29
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Zhang Z, Zhang H, Chen S, Xu Y, Yao A, Liao Q, Han L, Zou Z, Zhang X. Dihydromyricetin induces mitochondria-mediated apoptosis in HepG2 cells through down-regulation of the Akt/Bad pathway. Nutr Res 2017; 38:27-33. [PMID: 28381351 DOI: 10.1016/j.nutres.2017.01.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 12/22/2016] [Accepted: 01/15/2017] [Indexed: 12/21/2022]
Abstract
The plant flavonol dihydromyricetin (DHM) was reported to induce apoptosis in human hepatocarcinoma HepG2 cells. This study was undertaken to elucidate the underlying molecular mechanism of action of DHM. In the study, DHM down-regulated Akt expression and its phosphorylation at Ser473, up-regulated the levels of mitochondrial proapoptotic proteins Bax and Bad, and inhibited the phosphorylation of Bad at Ser136 and Ser112. It also inhibited the expression of the antiapoptotic protein Bcl-2 and enhanced the cleavage and activation of caspase-3 as well as the degradation of its downstream target poly(ADP-ribose) polymerase. Our results for the first time suggest that DHM-induced apoptosis in HepG2 cells may come about by the inhibition of the Akt/Bad signaling pathway and stimulation of the mitochondrial apoptotic pathway. Dihydromyricetin may be a promising therapeutic medication for hepatocellular carcinoma.
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Affiliation(s)
- Zhuangwei Zhang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China
| | - Huiqin Zhang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China; Department of Clinical Nutrition, Ningbo Second Hospital, Ningbo, Zhejiang 315040, China
| | - Shiyong Chen
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China; Hospital Infection-Control Department, Ningbo Medical Treatment Center, Lihuili Hospital, Ningbo, Zhejiang 315040, China
| | - Yan Xu
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China
| | - Anjun Yao
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China
| | - Qi Liao
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China
| | - Liyuan Han
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China
| | - Zuquan Zou
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China
| | - Xiaohong Zhang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang Province 315211, People's Republic of China.
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