1
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Chen G, Wang Y, Li Y, Zhang J, Huo Y, Ge W, Yang H. A combined approach of lauroyl arginine ethyl ester hydrochloride and kojic acid in mitigating fresh-cut potato deterioration. Food Chem 2024; 450:139392. [PMID: 38640546 DOI: 10.1016/j.foodchem.2024.139392] [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: 12/04/2023] [Revised: 04/11/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
The combinational effects of kojic acid and lauroyl arginine ethyl ester hydrochloride (ELAH) on fresh-cut potatoes were investigated. Kojic acid of 0.6% (w/w) effectively inhibited the browning of fresh-cut potatoes and displayed antimicrobial capacity. The color difference value of samples was decreased from 175 to 26 by kojic acid. In contrast, ELAH could not effectively bind with the active sites of tyrosinase and catechol oxidase at molecular level. Although 0.5% (w/w) of ELAH prominently inhibited the microbial growth, it promoted the browning of samples. However, combining kojic acid and ELAH effectively inhibited the browning of samples and microbial growth during the storage and the color difference value of samples was decreased to 52. This amount of kojic acid inhibited enzyme activities toward phenolic compounds. The results indicated that combination of kojic acid and ELAH could provide a potential strategy to extend the shelf life of fresh-cut products.
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Affiliation(s)
- Gang Chen
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Yuhui Wang
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Yongxin Li
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Jiaojiao Zhang
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Yanrong Huo
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Wanying Ge
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Huqing Yang
- College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China.
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2
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Moharir S, Khobragade P, Rane R, Suryawanshi M, Pal K, Gawade B, Kumar D, Satpute B. Discovery of Novel Diesters Incorporating Kojic Acid With NSAIDs and Palmitic Acid as Dual Inhibitor of Melanogenesis and Inflammation. J Pharm Sci 2024; 113:1769-1778. [PMID: 38663499 DOI: 10.1016/j.xphs.2024.04.019] [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: 11/24/2023] [Revised: 04/17/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
Our study focuses on creating hybrid compounds and assessing their suitability for use in skincare products. The synergistic combination of Kojic acid, NSAIDs, and Palmitic acid proved to be an effective approach in inhibiting melanin production, making it a promising solution for individuals with hyperpigmentation concerns with Kojic acid (KA) Ibuprofen monoester (IBUM) and Ibuprofen-Kojic acid-Palmitic acid diester (IBUD) exhibiting a potential tyrosinase (38 % and 49 % inhibition at 200 µM) and anti-melanogenesis activity (77 % and 79 % inhibition at 100 µM). Furthermore, these compounds exhibited potent anti-inflammatory effects, Kojic acid-Diclofenac monoester (DICM) and Diclofenac-Kojic acid-Palmitic acid diester (DICD) offering potential benefits for inflammation by lowering the paw volume. A stability study under chemical conditions and enzymatic conditions was also performed, wherein DICM and DICD showed a better half-life of 515, 593 h under chemical stability and 6.3, 7.5 h under enzymatic stability studies respectively. The diester hybrids IBUD, DICD, Naproxen-Kojic acid-Palmitic acid diester (NAPD) showed a better permeation and penetration profiles compared to their parent drugs. In-vitro cell line studies were conducted to assess the safety and efficacy of these hybrid esters, with promising results. The dual inhibitor demonstrated minimal cytotoxicity and remarkable anti-melanogenic and anti-inflammatory activities, showing its potential as a versatile agent in addressing both melanogenesis and inflammation.
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Affiliation(s)
- Shreyash Moharir
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune 411038, India
| | - Prachi Khobragade
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune 411038, India
| | - Rajesh Rane
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune 411038, India.
| | - Mugdha Suryawanshi
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune 411038, India.
| | - Kavita Pal
- Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India
| | - Bapu Gawade
- Cleanchem Lifesciences Pvt. Ltd., Kopar-Khairane, Navi Mumbai 400710, India
| | - Dileep Kumar
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune 411038, India.
| | - Bharat Satpute
- Department of Pharmaceutical Chemistry, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune 411038, India
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3
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Cytarska J, Szulc J, Kołodziej-Sobczak D, Nunes JA, da Silva-Júnior EF, Łączkowski KZ. Cyrene™ as a tyrosinase inhibitor and anti-browning agent. Food Chem 2024; 442:138430. [PMID: 38241986 DOI: 10.1016/j.foodchem.2024.138430] [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: 11/07/2023] [Revised: 12/31/2023] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
The tyrosinase pathway takes part in the enzymatic process of food browning and is primarily responsible for food spoilage - manifesting itself from a decrease in its nutritional value to a deterioration of taste, which consequently leads to a gradual loss of shelf life. Finding safe and bio-based tyrosinase inhibitors and anti-browning agents may be of great importance in agriculture and food industries. Herein, we showed that Cyrene™ exhibits tyrosinase inhibitory activity (IC50: 268.2 µM), the 1.44 times higher than ascorbic acid (IC50: 386.5 μM). Binding mode studies demonstrated that the carbonyl oxygen of Cyrene™ coordinates with both copper ions. Surprisingly, both hydroxyl groups of Cyrene gem-diol perform a monodentate binding mode with both copper ions, at similar distances. This fact suggests that both compounds could have a similar binding mode and, as consequence, similar biological activities in tyrosinase inhibition assays and anti-browning activities.
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Affiliation(s)
- Joanna Cytarska
- Department of Chemical Technology and Pharmaceuticals, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Joanna Szulc
- Department of Food Industry Technology and Engineering, Bydgoszcz University of Science and Technology, Seminaryjna 3, 85-326 Bydgoszcz, Poland
| | - Dominika Kołodziej-Sobczak
- Department of Chemical Technology and Pharmaceuticals, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, Jurasza 2, 85-089 Bydgoszcz, Poland.
| | - Jéssica Alves Nunes
- Biological and Molecular Chemistry Research Group, Institute of Chemistry and Biotechnology, Federal University of Alagoas, AC Simões Campus, Lourival Melo Mota Avenue, s/n, 57072-970 Maceió, Alagoas, Brazil
| | - Edeildo Ferreira da Silva-Júnior
- Biological and Molecular Chemistry Research Group, Institute of Chemistry and Biotechnology, Federal University of Alagoas, AC Simões Campus, Lourival Melo Mota Avenue, s/n, 57072-970 Maceió, Alagoas, Brazil
| | - Krzysztof Z Łączkowski
- Department of Chemical Technology and Pharmaceuticals, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, Jurasza 2, 85-089 Bydgoszcz, Poland.
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4
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García Molina P, Saura-Sanmartin A, Berna J, Teruel JA, Muñoz Muñoz JL, Rodríguez López JN, García Cánovas F, García Molina F. Considerations about the inhibition of monophenolase and diphenolase activities of tyrosinase. Characterization of the inhibitor concentration which generates 50 % of inhibition, type and inhibition constants. A review. Int J Biol Macromol 2024; 267:131513. [PMID: 38608979 DOI: 10.1016/j.ijbiomac.2024.131513] [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: 12/31/2023] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
Tyrosinase is a copper oxidase enzyme which catalyzes the first two steps in the melanogenesis pathway, L-tyrosine to L-dopa conversion and, then, to o-dopaquinone and dopachrome. Hypopigmentation and, above all, hyperpigmentation issues can be originated depending on their activity. This enzyme also promotes the browning of fruits and vegetables. Therefore, control of their activity by regulators is research topic of great relevance. In this work, we consider the use of inhibitors of monophenolase and diphenolase activities of the enzyme in order to accomplish such control. An experimental design and data analysis which allow the accurate calculation of the degree of inhibition of monophenolase activity (iM) and diphenolase activity (iD) are proposed. The IC50 values (amount of inhibitor that causes 50 % inhibition at a fixed substrate concentration) can be calculated for the two activities and from the values of IC50M (monophenolase) and IC50D(diphenolase). Additionally, the strength and type of inhibition can be deduced from these values. The data analysis from these IC50D values allows to obtain the values of [Formula: see text] or [Formula: see text] , or and [Formula: see text] from the values of IC50M. In all cases, the values of the different must satisfy their relationship with IC50M and IC50D.
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Affiliation(s)
- Pablo García Molina
- GENZ-Group of Research on Enzymology, Department of Biochemistry and Molecular Biology-A, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
| | - Adrian Saura-Sanmartin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, E-30100 Espinardo, Murcia, Spain.
| | - Jose Berna
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, E-30100 Espinardo, Murcia, Spain
| | - Jose Antonio Teruel
- Department of Biochemistry and Molecular Biology-A, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
| | - Jose Luis Muñoz Muñoz
- Microbial Enzymology Lab, Department of Applied Sciences, Ellison Building A, University of Northumbria, Newcastle Upon Tyne, UK
| | - Jose Neptuno Rodríguez López
- GENZ-Group of Research on Enzymology, Department of Biochemistry and Molecular Biology-A, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
| | - Francisco García Cánovas
- GENZ-Group of Research on Enzymology, Department of Biochemistry and Molecular Biology-A, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
| | - Francisco García Molina
- Department of Anatomía Patológica, Hospital General Universitario Reina Sofía, Av. Intendente Jorge Palacios, 1, 30003 Murcia, Spain.
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5
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He M, Zhang J, Li N, Chen L, He Y, Peng Z, Wang G. Synthesis, anti-browning effect and mechanism research of kojic acid-coumarin derivatives as anti-tyrosinase inhibitors. Food Chem X 2024; 21:101128. [PMID: 38292671 PMCID: PMC10826612 DOI: 10.1016/j.fochx.2024.101128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/22/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Abstract
Thirteen kojic acid-coumarin derivatives were synthesized using the principle of molecular hybridization, and their structures were characterized by 1H NMR, 13C NMR, and HRMS. In vitro enzyme inhibition experiments showed that all newly synthesized derivatives have excellent inhibition of tyrosinase (TYR) activity. As a mixed inhibitor, compound 6f has the strongest activity, with an IC50 value of 0.88 ± 0.10 µM. Multispectral experiments have confirmed that the mode of action of compound 6f on TYR was static quenching. In addition, compound 6f formed a new complex with TYR, which increased the hydrophobicity of the enzyme microenvironment, reduced the content of the α-helix in the enzyme, and changed the secondary structure. The experimental results showed that compound 6f effectively inhibited the browning of lotus root slices and had low cytotoxicity. Therefore, compound 6f is believed to have great development potential as a TYR inhibitor in the food industry.
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Affiliation(s)
- Min He
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Jinfeng Zhang
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Na Li
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Lu Chen
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yan He
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Zhiyun Peng
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Guangcheng Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
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6
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Mao S, Li Q, Yang Z, Li Y, Ye X, Wang H. Design, synthesis, and biological evaluation of benzoheterocyclic sulfoxide derivatives as quorum sensing inhibitors in Pseudomonas aeruginosa. J Enzyme Inhib Med Chem 2023; 38:2175820. [PMID: 36748317 PMCID: PMC9930800 DOI: 10.1080/14756366.2023.2175820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Six series of benzoheterocyclic sulfoxide derivatives were designed and synthesised as Pseudomonas aeruginosa (P. aeruginosa) quorum sensing inhibitors in this paper. We experimentally demonstrated that 6b significantly inhibited the formation of P. aeruginosa PAO1 biofilm without affecting the growth. Further mechanistic studies showed that 6b affected the luminescence of quorum sensing reported strain PAO1-lasB-gfp and the production of P. aeruginosa PAO1 elastase virulence factor which was regulated by las system. These experimental results indicate that 6b acts as a quorum sensing inhibitor mainly through the las system. Furthermore, silico molecular docking studies demonstrated that 6b and the P. aeruginosa quorum sensing receptor LasR were molecularly bound via hydrogen bonding interactions. Preliminary structure-activity relationship and docking studies illustrated that 6b shows great promise as anti-biofilm compounds for further studies in order to solve the problem of microbial resistance in future.
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Affiliation(s)
- Shen Mao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Qiaoqiang Li
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Zhikun Yang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Yasheng Li
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University & Anhui Center for Surveillance of Bacterial Resistance, Hefei, P. R. China
| | - Xinyi Ye
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China,Xinyi Ye College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou310014, P. R. China
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China,CONTACT Hong Wang
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7
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Mermer A, Demirci S. Recent advances in triazoles as tyrosinase inhibitors. Eur J Med Chem 2023; 259:115655. [PMID: 37482020 DOI: 10.1016/j.ejmech.2023.115655] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/10/2023] [Accepted: 07/13/2023] [Indexed: 07/25/2023]
Abstract
The tyrosinase enzyme, which is widely found in microorganisms, animals and plants, has a significant position in melanogenesis, plays an important role in undesirable browning of fruits and vegetables, antibiotic resistance, skin pigment formation, sclerotization of cuticle, neurodegeneration, etc. Therefore, with the wide potential application fields of tyrosinase in food, agriculture, cosmetics and pharmaceutical industries, which has become the target enzyme for the development of therapeutic agents such as antibrowning, anticancer, antibacterial, skin whitening, insecticides, etc., a large number of synthetic tyrosinase inhibitors have been widely reported in recent years. The triazole ring, which has a broad spectrum of biological action, is of increasing interest in the synthesis of new tyrosinase inhibitors. In this review, tyrosinase inhibition effects, structure-activity relationships, enzyme inhibition kinetics and mechanisms of action of 1,2,3- or 1,2,4-triazole derivatives were investigated. The data gathered is anticipated to supply rational guidance and an influential strategy for the development of novel, potent and safe tyrosinase inhibitors for better practical application in the future.
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Affiliation(s)
- Arif Mermer
- Experimental Medicine Application & Research Center, Validebağ Research Park, University of Health Sciences, İstanbul, Turkiye; Department of Biotechnology, University of Health Sciences, İstanbul, Turkiye.
| | - Serpil Demirci
- Department of Medical Services and Techniques, Vocational High School of Health Services, Giresun University, Giresun, Turkiye
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8
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Beaumet M, Lazinski LM, Maresca M, Haudecoeur R. Catechol-mimicking transition-state analogues as non-oxidizable inhibitors of tyrosinases. Eur J Med Chem 2023; 259:115672. [PMID: 37487307 DOI: 10.1016/j.ejmech.2023.115672] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/11/2023] [Accepted: 07/19/2023] [Indexed: 07/26/2023]
Abstract
Tyrosinases are copper-containing metalloenzymes involved in several processes in both mammals, insects, bacteria, fungi and plants. Their phenol oxidation properties are especially responsible for human melanogenesis, potentially leading to abnormal pigmentation, and for postharvest vegetable tissue browning. Thus, targeting tyrosinases attracts interest for applications both in dermocosmetic and agrofood fields. However, a large part of the literature about tyrosinase inhibitors is dedicated to the report of copper-interacting phenolic compounds, that are more likely alternative substrates leading to undesirable toxic quinones production. To circumvent this issue, the use of catechol-mimicking copper-chelating groups that are analogues of the tyrosinase oxidation transition state appears as a valuable strategy. Relying on several non-oxidizable pyridinone, pyrone or tropolone moieties, innovative inhibitors were developed, especially within the past decade, and the best reported analogues reached IC50 values in the nanomolar range. Herein, we review the design, the activity against several tyrosinases, and the proposed binding modes of reported catechol-mimicking, non-oxidizable molecules, in light of recent structural data.
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Affiliation(s)
- Morane Beaumet
- Univ. Grenoble Alpes, CNRS 5063, DPM, 38000, Grenoble, France
| | | | - Marc Maresca
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2, 13013, Marseille, France
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9
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Neshat A, Mahdavi A, Yousefshahi MR, Cheraghi M, Eigner V, Kucerakova M, Dusek M, Rezaie F, Kaboudin B. Heteroleptic Silver(I) and Gold(I) N-Heterocyclic Carbene Complexes: Structural Characterization, Computational Analysis, Tyrosinase Inhibitory, and Biological Effects. Inorg Chem 2023; 62:16710-16724. [PMID: 37788161 DOI: 10.1021/acs.inorgchem.3c01759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Derivatization of (NHC)M-Cl (M = Ag, Au) with selected sulfur donors from the family of dialkyldithiophosphates and bis(2-mercapto-1-methylimidazolyl)borate ligands gave a series of heteroleptic mononuclear complexes. In single-crystal X-ray diffraction analysis, Ag(I) complexes adopted a trigonal planar geometry, while Au(I) complexes are near-linear. TD-DFT and hole-electron analyses of the selected complexes gave insight into the electronic features of the metal complexes. In vitro cellular tests were conducted on the human cancerous breast cell line MCF-7 using 2 and 8. The antibacterial activities of complexes 1, 2, 3, 7, 8, and IPr-Ag-Cl were also screened against Gram-positive (Staphylococcus aureus PTCC 1112) and Gram-negative (Escherichia coli PTCC 1330) bacteria. Antityrosinase and hemolytic effects of the selected compounds were also determined.
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Affiliation(s)
- Abdollah Neshat
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
| | - Atiyeh Mahdavi
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
| | - Mohammad Reza Yousefshahi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
| | - Mahdi Cheraghi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
| | - Vaclav Eigner
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 8 18221, The Czech Republic
| | - Monika Kucerakova
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 8 18221, The Czech Republic
| | - Michal Dusek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 8 18221, The Czech Republic
| | - Forough Rezaie
- Department of Chemistry, Shahid Chamran University of Ahvaz, Ahwaz 6135783151, Iran
| | - Babak Kaboudin
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Blvd., Gava Zang, Zanjan 45137-66731, Iran
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10
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He M, Fan M, Yang W, Peng Z, Wang G. Novel kojic acid-1,2,4-triazine hybrids as anti-tyrosinase agents: Synthesis, biological evaluation, mode of action, and anti-browning studies. Food Chem 2023; 419:136047. [PMID: 37018861 DOI: 10.1016/j.foodchem.2023.136047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/20/2023] [Accepted: 03/25/2023] [Indexed: 04/05/2023]
Abstract
A class of new kojic acid hybrids (7a-7o) bearing a 1,2,4-triazine moiety were prepared, and their inhibitory activities and mechanism on tyrosinase were investigated. All derivatives showed good to excellent anti-tyrosinase activity with IC50 values ranging from 0.34 ± 0.06 μM to 8.44 ± 0.73 μM. In kinetic study, compound 7m was a mixed-type inhibitor with Ki and Kis of 0.73 and 1.27 μM, respectively. The interaction mechanism toward tyrosinase of compound 7m was further elaborated in combination with molecular docking and various spectral techniques. The results showed that compound 7m could change the secondary structure of tyrosinase to reduce its catalytic activity. Anti-browning assays demonstrated that 7m inhibited the browning of bananas effectively during storage. What's more, 7m was found to have low cytotoxicity in vitro. In conclusion, compound 7m has the potential to be applied as an anti-browning agent.
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11
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Li J, Min X, Zheng X, Wang S, Xu X, Peng J. Synthesis, Anti-Tyrosinase Activity, and Spectroscopic Inhibition Mechanism of Cinnamic Acid-Eugenol Esters. Molecules 2023; 28:5969. [PMID: 37630220 PMCID: PMC10460039 DOI: 10.3390/molecules28165969] [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: 07/19/2023] [Revised: 08/02/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
Tyrosinase plays crucial roles in mediating the production of melanin pigment; thus, its inhibitors could be useful in preventing melanin-related diseases. To find potential tyrosinase inhibitors, a series of cinnamic acid-eugenol esters (c1~c29) was synthesized and their chemical structures were confirmed by 1H NMR, 13C NMR, HRMS, and FT-IR, respectively. The biological evaluation results showed that all compounds c1~c29 exhibited definite tyrosinase inhibitory activity; especially, compound c27 was the strongest tyrosinase inhibitor (IC50: 3.07 ± 0.26 μM), being ~4.6-fold stronger than the positive control, kojic acid (IC50: 14.15 ± 0.46 μM). Inhibition kinetic studies validated compound c27 as a reversible mixed-type inhibitor against tyrosinase. Three-dimensional fluorescence and circular dichroism (CD) spectra results indicated that compound c27 could change the conformation and secondary structure of tyrosinase. Fluorescence-quenching results showed that compound c27 quenched tyrosinase fluorescence in the static manner with one binding site. Molecular docking results also revealed the binding interactions between compound c27 and tyrosinase. Therefore, cinnamic acid-eugenol esters, especially c27, could be used as lead compounds to find potential tyrosinase inhibitors.
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Affiliation(s)
- Jianping Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China (X.Z.)
| | - Xiaofeng Min
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China (X.Z.)
| | - Xi Zheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China (X.Z.)
| | - Shaohua Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China;
| | - Xuetao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China (X.Z.)
| | - Jinbao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China (X.Z.)
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12
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Wang G, He M, Huang Y, Peng Z. Synthesis and biological evaluation of new kojic acid-1,3,4-oxadiazole hybrids as tyrosinase inhibitors and their application in the anti-browning of fresh-cut mushrooms. Food Chem 2023; 409:135275. [PMID: 36586247 DOI: 10.1016/j.foodchem.2022.135275] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/22/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
In the food industry, inhibition of tyrosinase activity is considered as one of the main means to prevent browning. Therefore, fourteen kojic acid-1,3,4-oxadiazole hybrids (5a-5n) were prepared and tested for their tyrosinase inhibitory effects. Among them, 5f (IC50 = 5.32 ± 0.58 μM) has the best anti-tyrosinase activity and was 9 times higher than that of kojic acid (IC50 = 49.77 ± 1.19 μM). Additionally, the inhibitory mechanism was studied by copper-chelating assay, ultraviolet spectrophotometry, fluorescence quenching, molecular docking, etc. The results had shown that 5f could not only bind to the copper ion in the active region of tyrosinase but also change the secondary structure of tyrosinase. Combined with the outstanding anti-browning effect and low cytotoxicity of 5f, it is concluded that these title derivatives could be used as the leading molecules in the development of new anti-browning agents.
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Affiliation(s)
- Guangcheng Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China.
| | - Min He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China; Teaching and Research Section of Natural Medicinal Chemistry, School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Yong Huang
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, China
| | - Zhiyun Peng
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.
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13
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Zhang X, Wu YT, Wei XY, Xie YY, Zhou T. Preparation, antioxidant and tyrosinase inhibitory activities of chitosan oligosaccharide-hydroxypyridinone conjugates. Food Chem 2023; 420:136093. [PMID: 37062084 DOI: 10.1016/j.foodchem.2023.136093] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 04/18/2023]
Abstract
Two novel chitosan oligosaccharide (COS)-hydroxypyridone (HPO) conjugates were prepared by reacting chitosan oligosaccharide with 2-chloromethyl-5-hydroxypyridone (HPO), which was synthesized by a series of reactions starting from kojic acid. The degree of substitution of COS-HPO2 reached 1.2, with a yield of 74.9%. The structure of the two conjugates (COS-HPO1 and COS-HPO2) was identified by NMR and FT-IR analysis. The two conjugates showed significantly higher free radical (DPPH•, ABTS+• and •OH) scavenging activity and reducing power than those of COS and HPO (p < 0.05). Both COS-HPO1 and COS-HPO2 possessed significantly stronger tyrosinase inhibitory activity than those of COS, with IC50 values of 0.67 and 0.28 mg/mL for monophenolase, 0.73 and 0.30 mg/mL for diphenolase, respectively. In addition, the conjugates were found to be non-toxic to RAW264.7 macrophages and MRC-5 human lung cells. This work proposes a facile method to enhance the oxidative and tyrosinase inhibitory properties of COS.
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Affiliation(s)
- Xu Zhang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Yun-Tao Wu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Xiao-Yi Wei
- Department of Food Science, Faculty of Hospitality Management, Shanghai Business School, Shanghai 200235, PR China
| | - Yuan-Yuan Xie
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Tao Zhou
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China.
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14
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Peng Z, Wang G, Wang JJ, Zhao Y. Anti-browning and antibacterial dual functions of novel hydroxypyranone-thiosemicarbazone derivatives as shrimp preservative agents: Synthesis, bio-evaluation, mechanism, and application. Food Chem 2023; 419:136106. [PMID: 37030204 DOI: 10.1016/j.foodchem.2023.136106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/21/2023] [Accepted: 04/02/2023] [Indexed: 04/10/2023]
Abstract
To develop new shrimp preservative agents with dual functions of anti-browning and antibacterial, thirteen hydroxypyranone-thiosemicarbazone derivatives were prepared according to molecular hybridization. Thereinto, compound 7j (IC50 = 1.99 ± 0.19 μM) shown the strongest anti-tyrosinase activity and was about twenty-three folds stronger than kojic acid (45.73 ± 4.03 μM). The anti-tyrosinase mechanism of 7j was illustrated through enzyme kinetic, copper ion chelating ability, fluorescence quenching, ultraviolet spectrum, AFM analysis, and molecular docking study. On the other hand, antibacterial assay and time-kill kinetics analysis confirmed that 7j also had good antibacterial activity against V. parahaemolyticus (MIC = 0.13 mM). PI uptake test, SDS-PAGE, and fluorescence spectrometry analysis proved that 7j can affect the bacterial cell membrane. Finally, the shrimp preservation and safety study indicated that 7j has dual effects of inhibiting bacterial growth and preventing enzyme browning, and can be applied to the preservation of fresh shrimp.
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Affiliation(s)
- Zhiyun Peng
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang 55004, China; College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Guangcheng Wang
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Jing Jing Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
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15
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Wang W, Yang L, Wang W, Zhang J, Engelhardt UH, Jiang H. Inhibitory Activities of Samples on Tyrosinases Were Affected by Enzyme Species and Sample Addition Methods. Int J Mol Sci 2023; 24:ijms24076013. [PMID: 37046986 PMCID: PMC10093845 DOI: 10.3390/ijms24076013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 04/14/2023] Open
Abstract
The inhibition of tyrosinase (TYR) activity is an effective measure to inhibit melanin synthesis. At present, there are many methods with discrepant details that study the TYR inhibitory activity of samples. Under the same experimental conditions, this paper systematically studies whether enzyme species and sample addition methods are the key factors that determine the TYR inhibitory activity of samples. TYRs extracted from B16F10 cells, apple and mushroom, called BTYR, ATYR and MTYR, respectively, were selected to implement this study. Results showed that TYR inhibitory activities of samples were obviously affected by the above two factors. It was necessary to select the appropriate enzyme according to the problems to be explained. It was speculated that indirectly inhibitory activity reflected the comprehensive effects of samples on TYR catalytic activity and intracellular TYR synthesis pathway, while directly inhibitory activity reflected the effects of samples on TYR catalytic activity. Additionally, kojic acid could be used as a positive control for both B16F10 cells and MTYR models. The TYR inhibitory activity of β-arbutin was complicated and fickle, while that of epigallocatechin gallate (EGCG) was universal and stable, which is to say, EGCG always inhibited TYR activity in a dose-dependent manner. In conclusion, the TYR inhibitory activities of samples were affected by enzyme species and sample addition methods. Compared with the unstable β-arbutin, EGCG was more valuable for clinical research.
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Affiliation(s)
- Wei Wang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Xihu District, Hangzhou 310008, China
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lijuan Yang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Xihu District, Hangzhou 310008, China
| | - Weiwei Wang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Xihu District, Hangzhou 310008, China
| | - Jianyong Zhang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Xihu District, Hangzhou 310008, China
| | - Ulrich H Engelhardt
- Institute of Food Chemistry, Technischen Universität Braunschweig, Schleinitzstr. 20, 38106 Braunschweig, Germany
| | - Heyuan Jiang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Xihu District, Hangzhou 310008, China
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16
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Screening and identification of tyrosinase inhibitors in edible plant materials by on-line UPLC-enzyme reactor coupled with UHPLC-FTMS. Food Chem 2023; 403:134331. [DOI: 10.1016/j.foodchem.2022.134331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/22/2022]
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17
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Lu L, Zhang X, Kang Y, Xiong Z, Zhang K, Xu XT, Bai LP, Li HG. Novel coumarin derivatives as potential tyrosinase inhibitors: Synthesis, binding analysis and biological evaluation. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
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18
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Peng Z, Wang G, He Y, Wang JJ, Zhao Y. Tyrosinase inhibitory mechanism and anti-browning properties of novel kojic acid derivatives bearing aromatic aldehyde moiety. Curr Res Food Sci 2022; 6:100421. [PMID: 36605465 PMCID: PMC9807860 DOI: 10.1016/j.crfs.2022.100421] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Kojic acid-aromatic aldehydes 6a-6m were synthesized and screened for their anti-tyrosinase activities. These compounds showed potently anti-tyrosinase activity with IC50 values in the range of 5.32 ± 0.23 to 77.89 ± 3.36 μM compared with kojic acid (IC50 = 48.05 ± 3.28 μM). Thereinto, compound 6j with 3-fluorine and 4-aldehyde substitutions showed the most potent anti-tyrosinase activity (IC50 = 5.32 ± 0.23 μM). Enzyme kinetic study revealed that 6j is a noncompetitive tyrosinase inhibitor (Ki = 2.73 μM). The action mechanism of 6j was evaluated by fluorescence spectrum quenching, molecular docking, 1H NMR titration, etc. The anti-browning assay showed that 6j could delay the enzymatic browning of fresh-cut apples. Besides, the cell viability assay proved that 6j had a good safety profile as an anti-browning agent. Hence, these results identify a new class of anti-tyrosinase and anti-browning agents for further investigation in the food industry.
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Affiliation(s)
- Zhiyun Peng
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Guangcheng Wang
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, 550004, China
| | - Yan He
- Clinical Trails Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jing Jing Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan, 528225, China
- Corresponding author. College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China.
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- Corresponding author.
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19
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Cariola A, El Chami M, Granatieri J, Valgimigli L. Anti-Tyrosinase and Antioxidant Activity of Meroterpene Bakuchiol from Psoralea corylifolia (L.). Food Chem 2022; 405:134953. [DOI: 10.1016/j.foodchem.2022.134953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022]
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20
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Lin JH, Shiu BC, Hsu PW, Lou CW, Lin JH. PVP/CS/ Phyllanthus emblica Nanofiber Membranes for Dry Facial Masks: Manufacturing Process and Evaluations. Polymers (Basel) 2022; 14:4470. [PMID: 36365465 PMCID: PMC9657772 DOI: 10.3390/polym14214470] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 01/18/2024] Open
Abstract
In the wake of increasing demands on skin health, we propose simple, natural, and safe dry facial masks that restrict melanin synthesis. Phyllanthus emblica (P. emblica) is made into powders via a low-temperature extraction and freeze-drying process to serve as a natural agent. Next, it is added to mixtures containing Polyvinylpyrrolidone (PVP) and Chitosan (CS), after which the blends are electrospun into PVP/CS/P. emblica nanofiber membrane dry facial masks using the electrospinning technique. The dry facial masks are evaluated using the calibration analysis method, extraction rate test, scanning electron microscopy (SEM), release rate test, tyrosinase inhibition assay, biocompatibility test, and anti-inflammatory capacity test. Test results indicate that when the electrospinning mixture contains 29.0% P. emblica, the nanofibers have a diameter of ≤214.27 ± 74.51 nm and a water contact angle of 77.25 ± 2.21. P. emblica is completely released in twenty minutes, and the tyrosinase inhibition rate reaches 99.53 ± 0.45% and the cell activity ≥82.60 ± 1.30%. Moreover, the anti-inflammatory capacity test results suggest that dry facial masks confine inflammatory factors. PVP/CS/P. emblica nanofiber dry facial masks demonstrate excellent tyrosinase inhibition and are hydrophilic, biocompatible, and inflammation-free. The dry facial masks are a suitable material that is worthwhile exploring and applying to the cosmetic field.
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Affiliation(s)
- Jian-Hong Lin
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou 350108, China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan
| | - Bing-Chiuan Shiu
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Po-Wen Hsu
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou 350108, China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan
| | - Ching-Wen Lou
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou 350108, China
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Qingdao 266071, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413305, Taiwan
| | - Jia-Horng Lin
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Qingdao 266071, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
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21
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Zhao Y, Yuan L, Bai XL, Jiang XX, Zhang Y, Fang Q, Zhang Q, Liao X. Tyrosinase covalently immobilized on carboxyl functionalized magnetic nanoparticles for fishing of the enzyme's ligands from Prunellae Spica. J Sep Sci 2022; 45:3635-3645. [PMID: 35852941 DOI: 10.1002/jssc.202200303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 11/06/2022]
Abstract
In this study, tyrosinase was immobilized on carboxyl functionalized silica-coated magnetic nanoparticles for the first time to be used for fishing of tyrosinase's ligands present in complex plant extract. The immobilized tyrosinase was characterized by transmission electron microscopy, vibrating sample magnetometry, Fourier transform infrared spectroscopy, thermo-gravimetric analyzer, and atomic force microscopy. The reusability and thermostability of the immobilized tyrosinase were found significantly superior to its free counterpart. Two tyrosinase's ligands, that is, caffeic acid (1) and rosmarinic acid (2), were fished out from extract of the traditional Chinese medicine Prunellae Spica by the immobilized tyrosinase. Compound 1 was found to be an activator of the enzyme with the half maximal effective concentration value of 0.27 ± 0.06 mM, while compound 2 was an inhibitor with the half maximal inhibitory concentration value of 0.14 ± 0.03 mM. Taking advantage of the convenience of magnetic separation and specific extraction ability of ligand fishing, the proposed method exhibited great potential for screening of bioactive compounds from complex matrices.
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Affiliation(s)
- Yan Zhao
- School of Science, Xihua University, Chengdu, P. R. China
| | - Li Yuan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xiao-Lin Bai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xin-Xin Jiang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Yi Zhang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Qiong Fang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Qin Zhang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China
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22
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Zhu YZ, Chen K, Chen YL, Zhang C, Xie YY, Hider RC, Zhou T. Design and synthesis of novel stilbene-hydroxypyridinone hybrids as tyrosinase inhibitors and their application in the anti-browning of freshly-cut apples. Food Chem 2022; 385:132730. [PMID: 35318180 DOI: 10.1016/j.foodchem.2022.132730] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/10/2022] [Accepted: 03/14/2022] [Indexed: 11/26/2022]
Abstract
In order to develop the tyrosinase inhibitors with potential application in food industry, a series of stilbene-hydroxypyridinone hybrids were prepared. Among these compounds, 1h was found to possess the most potent tyrosinase inhibitory effect on both monophenolase and diphenolase activities, with IC50 values of 2.72 μM and 15.86 μM, respectively. The inhibitory effect of 1h on monophenolase activity was 4.6 times that of kojic acid. An inhibition kinetic assay indicated that 1h was a mixed-type and reversible inhibitor. The copper-binding and reducing ability assays, molecular docking study, intrinsic and ANS-binding fluorescence assays indicated that copper coordination and reduction is likely to be the causative mechanism for 1h-induced inhibition on tyrosinase. The results of color measurement and browning index determination indicated that treatment with 1h retarded effectively the browning of freshly-cut apples during their storage. Meanwhile, PPO and POD activities in apple slices were found to be effectively inhibited.
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Affiliation(s)
- Yu-Zhu Zhu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Kai Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Yu-Lin Chen
- Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK
| | - Changjun Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yuan-Yuan Xie
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Robert C Hider
- Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK
| | - Tao Zhou
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China.
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23
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Rai RK, Karri R, Dubey KD, Roy G. Regulation of Tyrosinase Enzyme Activity by Glutathione Peroxidase Mimics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9730-9747. [PMID: 35861245 DOI: 10.1021/acs.jafc.2c02359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hydrogen peroxide plays a crucial role in the melanogenesis process by regulating the activity of the key melanin-forming enzyme tyrosinase, responsible for the browning of fruits, vegetables, and seafood. Therefore, a molecule with dual activities, both efficient tyrosinase inhibition and strong hydrogen peroxide degrading ability, may act as a promising antibrowning agent. Herein, we report highly efficient selone-based mushroom tyrosinase inhibitors 2 and 3 with remarkable glutathione peroxidase (GPx) enzyme-like activity. The presence of benzimidazole moiety enhances the tyrosinase inhibition efficiency of selone 2 (IC50 = 0.4 μM) by almost 600 times higher than imidazole-based selone 1 (IC50 = 238 μM). Interestingly, the addition of another aromatic ring to the benzimidazole moiety has led to the development of an efficient lipid-soluble tyrosinase inhibitor 3 (IC50 = 2.4 μM). The selenium center and the -NH group of 2 and 3 are extremely crucial to exhibit high GPx-like activity and tyrosinase inhibition potency. The hydrophobic moiety of the inhibitors (2 and 3) further assists them in tightly binding at the active site of the enzyme and facilitates the C═Se group to strongly coordinate with the copper ions. Inhibitor 2 exhibited excellent antibrowning and polyphenol oxidase inhibition properties in banana and apple juice extracts.
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Affiliation(s)
- Rakesh Kumar Rai
- Department of Chemistry, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh 517506, India
| | - Ramesh Karri
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Gouriprasanna Roy
- Department of Chemistry, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh 517506, India
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24
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Ghani U. Azole inhibitors of mushroom and human tyrosinases: Current advances and prospects of drug development for melanogenic dermatological disorders. Eur J Med Chem 2022; 239:114525. [PMID: 35717871 DOI: 10.1016/j.ejmech.2022.114525] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 11/16/2022]
Abstract
Azoles are a famous and promising class of drugs for treatment of a range of ailments especially fungal infections. A wide variety of azole derivatives are also known to exhibit tyrosinase inhibition, some of which possess promising activity with potential for treatment of dermatological disorders such as post-inflammatory hyperpigmentation, nevus, flecks, melasma, and melanoma. Recently, thiazolyl-resorcinol derivatives have demonstrated potent human tyrosinase inhibition with a safe and effective therapeutic profile for treatment of skin hyperpigmentation in humans, which are currently under clinical trials. If approved these derivatives would be the first azole drugs to be used for treatment of skin hyperpigmentation. Although the scientific literature has been witnessing general reviews on tyrosinase inhibitors to date, there is none that specifically and comprehensively discusses azole inhibitors of tyrosinase. Appreciating such potential of azoles, this focused review highlights a wide range of their derivatives with promising mushroom and human tyrosinase inhibitory activities and clinical potential for treatment of melanogenic dermatological disorders. Presently, these disorders have been treated with kojic acid, hydroquinone and other drugs, the design and development of which are based on their ability to inhibit mushroom tyrosinase. The active sites of mushroom and human tyrosinases carry structural differences which affect substrate or inhibitor binding. For this reason, kojic acid and other drugs pose efficacy and safety issues since they were originally developed using mushroom tyrosinase and have been clinically used on human tyrosinase. Design and development of tyrosinase inhibitors should be based on human tyrosinase, however, there are challenges in obtaining the human enzyme and understanding its structure and function. The review discusses these challenges that encompass structural and functional differences between mushroom and human tyrosinases and the manner in which they are inhibited. The review also gauges promising azole derivatives with potential for development of drugs against skin hyperpigmentation by analyzing and comparing their tyrosinase inhibitory activities against mushroom and human tyrosinases, computational data, and clinical profile where available. It aims to lay groundwork for development of new azole drugs for treatment of skin hyperpigmentation, melanoma, and related dermatological disorders.
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Affiliation(s)
- Usman Ghani
- Clinical Biochemistry Unit, Department of Pathology, College of Medicine, King Saud University, Riyadh, 12372, Saudi Arabia.
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25
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Krzemińska A, Kwiatos N, Arenhart Soares F, Steinbüchel A. Theoretical Studies of Cyanophycin Dipeptides as Inhibitors of Tyrosinases. Int J Mol Sci 2022; 23:ijms23063335. [PMID: 35328756 PMCID: PMC8950311 DOI: 10.3390/ijms23063335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/13/2022] [Accepted: 03/17/2022] [Indexed: 02/06/2023] Open
Abstract
The three-dimensional structure of tyrosinase has been crystallized from many species but not from Homo sapiens. Tyrosinase is a key enzyme in melanin biosynthesis, being an important target for melanoma and skin-whitening cosmetics. Several studies employed the structure of tyrosinase from Agaricus bisporus as a model enzyme. Recently, 98% of human genome proteins were elucidated by AlphaFold. Herein, the AlphaFold structure of human tyrosinase and the previous model were compared. Moreover, tyrosinase-related proteins 1 and 2 were included, along with inhibition studies employing kojic and cinnamic acids. Peptides are widely studied for their inhibitory activity of skin-related enzymes. Cyanophycin is an amino acid polymer produced by cyanobacteria and is built of aspartic acid and arginine; arginine can be also replaced by other amino acids. A new set of cyanophycin-derived dipeptides was evaluated as potential inhibitors. Aspartate–glutamate showed the strongest interaction and was chosen as a leading compound for future studies.
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Zhang X, Meng W, Chen Y, Peng Y. Browning inhibition of plant extracts on fresh‐cut fruits and vegetables ‐A review. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16532] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoyan Zhang
- College of Food Science and Engineering Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, Grain Process Technology and Engineering Technology Center in Shandong Province, Shandong Agricultural University, Taian China
| | - Wenbo Meng
- College of Food Science and Engineering Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, Grain Process Technology and Engineering Technology Center in Shandong Province, Shandong Agricultural University, Taian China
| | - Yilun Chen
- College of Food Science and Engineering Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, Grain Process Technology and Engineering Technology Center in Shandong Province, Shandong Agricultural University, Taian China
| | - Yong Peng
- College of Food Science and Engineering Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, Grain Process Technology and Engineering Technology Center in Shandong Province, Shandong Agricultural University, Taian China
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Kojic Acid Showed Consistent Inhibitory Activity on Tyrosinase from Mushroom and in Cultured B16F10 Cells Compared with Arbutins. Antioxidants (Basel) 2022; 11:antiox11030502. [PMID: 35326152 PMCID: PMC8944748 DOI: 10.3390/antiox11030502] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/03/2022] [Accepted: 03/03/2022] [Indexed: 12/24/2022] Open
Abstract
Kojic acid, β-arbutin, α-arbutin, and deoxyarbutin have been reported as tyrosinase inhibitors in many articles, but some contradictions exist in their differing results. In order to provide some explanations for these contradictions and to find the most suitable compound as a positive control for screening potential tyrosinase inhibitors, the activity and inhibition type of the aforementioned compounds on monophenolase and diphenolase of mushroom tyrosinase (MTYR) were studied. Their effects on B16F10 cells melanin content, tyrosinase (BTYR) activity, and cell viability were also exposed. Results indicated that α-arbutin competitively inhibited monophenolase activity, whereas they uncompetitively activated diphenolase activity of MTYR. β-arbutin noncompetitively and competitively inhibited monophenolase activity at high molarity (4000 µM) and moderate molarity (250–1000 µM) respectively, whereas it activated the diphenolase activity of MTYR. Deoxyarbutin competitively inhibited diphenolase activity, but could not inhibit monophenolase activity and only extended the lag time. Kojic acid competitively inhibited monophenolase activity and competitive–noncompetitive mixed-type inhibited diphenolase activity of MTYR. In a cellular experiment, deoxyarbutin effectively inhibited BTYR activity and reduced melanin content, but it also potently decreased cell viability. α-arbutin and β-arbutin dose-dependently inhibited BTYR activity, reduced melanin content, and increased cell viability. Kojic acid did not affect cell viability at 43.8–700 µM, but inhibited BTYR activity and reduced melanin content in a dose-dependent manner. Therefore, kojic acid was considered as the most suitable positive control among these four compounds, because it could inhibit both monophenolase and diphenolase activity of MTYR and reduce intercellular melanin content by inhibiting BTYR activity without cytotoxicity. Some explanations for the contradictions in the reported articles were provided.
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Mi Y, Chen Y, Tan W, Zhang J, Li Q, Guo Z. The influence of bioactive glyoxylate bearing Schiff base on antifungal and antioxidant activities to chitosan quaternary ammonium salts. Carbohydr Polym 2022; 278:118970. [PMID: 34973785 DOI: 10.1016/j.carbpol.2021.118970] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/02/2021] [Accepted: 11/30/2021] [Indexed: 01/18/2023]
Abstract
In this study, to investigate the influence of glyoxylate bearing Schiff base on bioactivity to chitosan quaternary ammonium salts, different chitosan derivatives were synthesized by ion exchange of glyoxylate bearing Schiff base with chitosan quaternary ammonium salts (TMCI and HACC). For this purpose, glyoxylate was prepared by Schiff base reaction of glyoxylic acid and amino heterocycles and it was further ionization to substitute iodide ions and chloride ions. After structural characterization by FTIR and 1H NMR, the antifungal and antioxidant activities were measured. Results indicated that glyoxylate bearing Schiff base could improve the bioactivity of TMCI and HACC obviously. Specifically, anionic TMCI with Schiff base of amino pyridines possessed best antioxidant activity >92.40% at 1.6 mg/mL against DPPH radicals. Meanwhile, they showed antifungal activity >84.88% at 1.0 mg/mL against G. cingulate. Furthermore, the cytotoxicity was evaluated, and all samples showed good cell viability >80.14% at 1000 μg/mL.
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Affiliation(s)
- Yingqi Mi
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuan Chen
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Wenqiang Tan
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Jingjing Zhang
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Qing Li
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Zhanyong Guo
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Dehkordi MM, Asgarshamsi MH, Fassihi A, Zborowski KK. A Comparative DFT Study on the Antioxidant Activity of some Novel 3-hydroxypyridine-4-one Derivatives. Chem Biodivers 2022; 19:e202100703. [PMID: 34997823 DOI: 10.1002/cbdv.202100703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 01/07/2022] [Indexed: 11/06/2022]
Abstract
The current study on the antioxidant activity of Kojic acid and 3-hydroxypyridine-4-one derivatives was performed by implementation of density functional theory calculations with the B3LYP hybrid functional and the 6-311++ G** basis set in Polarizable Continuum Model. Compounds under evaluation were previously synthesized by our research group. The DPPH scavenging effect and IC 50 values of them in mM concentrations were evaluated. Subsequently, various electronic and energetic descriptors such as HOMO and LUMO energy gaps, bonding dissociation enthalpy of OH bond, ionization potential, electron affinity, hardness, and softness, NBOs and spin density of radical and neutral species were used to study antioxidant properties of investigated compounds. The computations detected two compounds, HP3 and HP4 , with significant antioxidant activity. Energetic descriptors indicated that SPLET mechanism is preferred over than other antioxidant mechanism and computational results were in accordance with the experimental results.
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Affiliation(s)
- Mehrdad M Dehkordi
- Isfahan University of Medical Sciences, School of Pharmacy, Hezar Jerib street, 81746-73461, Isfahan, IRAN (ISLAMIC REPUBLIC OF)
| | - Mohammad H Asgarshamsi
- Isfahan University of Medical Sciences, School of Pharmacy, Hezar Jerib street, 81746-73461, Isfahan, IRAN (ISLAMIC REPUBLIC OF)
| | - Afshin Fassihi
- Isfahan University of Medical Sciences, School of Pharmacy, Hezar Jerib street, 81746-73461, Isfahan, IRAN (ISLAMIC REPUBLIC OF)
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Sim J, Lanka S, Jo JW, Chaudhary CL, Vishwanath M, Jung CH, Lee YH, Kim EY, Kim YS, Hyun SS, Lee HS, Lee K, Seo SY, Viji M, Jung JK. Inhibitory Effect of Chlorogenic Acid Analogues Comprising Pyridine and Pyrimidine on α-MSH-Stimulated Melanogenesis and Stability of Acyl Analogues in Methanol. Pharmaceuticals (Basel) 2021; 14:1176. [PMID: 34832958 PMCID: PMC8622415 DOI: 10.3390/ph14111176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/11/2021] [Accepted: 11/14/2021] [Indexed: 11/30/2022] Open
Abstract
In continuation of studies for α-MSH stimulated melanogenesis inhibitors, we have evaluated the design, synthesis, and activity of a new series of chlorogenic acid (CGA) analogues comprising pyridine, pyrimidine, and diacyl derivatives. Among nineteen synthesized compounds, most of them (fifteen) exhibited better inhibitions of melanin formation in B16 melanoma cells. The results illustrated that a pyridine analogue 6f and a diacyl derivative 13a of CGA showed superior inhibition profiles (IC50: 2.5 ± 0.7 μM and 1.1 ± 0.1 μM, respectively) of α-MSH activities than positive controls, kojic acid and arbutin (IC50: 54 ± 1.5 μM and 380 ± 9.5 μM, respectively). The SAR studies showed that both -CF3 and -Cl groups exhibited better inhibition at the meta position on benzylamine than their ortho and para positions. In addition, the stability of diacyl analogues of CGA in methanol monitored by HPLC for 28 days indicated the steric bulkiness of acyl substituents as a key factor in their stability.
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Affiliation(s)
- Jaeuk Sim
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Srinu Lanka
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Jeong-Woong Jo
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Chhabi Lal Chaudhary
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Manjunatha Vishwanath
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Chan-Hyun Jung
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Young-Hee Lee
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
- Samjin Central Research Institute, Samjin Pharma Co., Ltd., Cheongju 28158, Korea
| | - Eun-Yeong Kim
- College of Pharmacy, Korea University, Sejong 30019, Korea; (E.-Y.K.); (K.L.)
| | - Young-Soo Kim
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Soon-Sil Hyun
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Hee-Soon Lee
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Kiho Lee
- College of Pharmacy, Korea University, Sejong 30019, Korea; (E.-Y.K.); (K.L.)
| | - Seung-Yong Seo
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, Incheon 21936, Korea;
| | - Mayavan Viji
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
| | - Jae-Kyung Jung
- College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 28160, Korea; (J.S.); (S.L.); (J.-W.J.); (C.L.C.); (M.V.); (C.-H.J.); (Y.-H.L.); (Y.-S.K.); (S.-S.H.); (H.-S.L.)
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