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Sabuakham S, Nasoontorn S, Kongtaworn N, Rungrotmongkol T, Silsirivanit A, Pingaew R, Mahalapbutr P. Anilino-1,4-naphthoquinones as potent mushroom tyrosinase inhibitors: in vitro and in silico studies. J Enzyme Inhib Med Chem 2024; 39:2357174. [PMID: 38814149 PMCID: PMC11141316 DOI: 10.1080/14756366.2024.2357174] [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: 03/04/2024] [Accepted: 05/14/2024] [Indexed: 05/31/2024] Open
Abstract
Tyrosinase, a pivotal enzyme in melanin synthesis, is a primary target for the development of depigmenting agents. In this work, in vitro and in silico techniques were employed to identify novel tyrosinase inhibitors from a set of 12 anilino-1,4-naphthoquinone derivatives. Results from the mushroom tyrosinase activity assay indicated that, among the 12 derivatives, three compounds (1, 5, and 10) demonstrated the most significant inhibitory activity against mushroom tyrosinase, surpassing the effectiveness of the kojic acid. Molecular docking revealed that all studied derivatives interacted with copper ions and amino acid residues at the enzyme active site. Molecular dynamics simulations provided insights into the stability of enzyme-inhibitor complexes, in which compounds 1, 5, and particularly 10 displayed greater stability, atomic contacts, and structural compactness than kojic acid. Drug likeness prediction further strengthens the potential of anilino-1,4-naphthoquinones as promising candidates for the development of novel tyrosinase inhibitors for the treatment of hyperpigmentation disorders.
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Affiliation(s)
- Sahachai Sabuakham
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sutita Nasoontorn
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Napat Kongtaworn
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Thanyada Rungrotmongkol
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Atit Silsirivanit
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Ratchanok Pingaew
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
| | - Panupong Mahalapbutr
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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The Inhibitory Effect of Polyphenon 60 from Green Tea on Melanin and Tyrosinase in Zebrafish and A375 Human Melanoma Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:7739023. [PMID: 36091602 PMCID: PMC9463005 DOI: 10.1155/2022/7739023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/22/2022] [Accepted: 08/12/2022] [Indexed: 11/24/2022]
Abstract
Polyphenon 60 (PP60) from green tea has long been used as an antioxidant, anticancer, antimicrobial, and antimutagenic. Aim of the Study. To investigate tyrosinase inhibition-related kinetic mechanism and antimelanogenesis potential of PP60. Materials and Methods. The effect of PP60 on melanin and tyrosinase was evaluated in A375 melanoma cells and zebrafish embryos. The melanoma cells were treated with 20, 40, and 60 µg/mL of PP60, and tyrosinase expression was induced by using L-DOPA. The western blot method was used for the evaluation of tyrosinase expression. Cell lysates were prepared from treated and untreated cells for cellular tyrosinase and melanin quantification. Furthermore, zebrafish embryos were treated with 20, 40, and 60 µg/mL of PP60 and reference drug kojic acid for determination of depigmentation and melanin quantification. In vitro assays were also performed to examine the impact of PP60 on mushroom tyrosinase activity. To determine cytotoxicity, MTT was used against melanoma cell line A375. Results. PP60 showed good tyrosinase inhibitory activity with an IC50 value of 0.697 ± 0.021 µg/mL as compared to kojic acid a reference drug with an IC50 value of 2.486 ± 0.085 µg/mL. Kinetic analysis revealed its mixed type of inhibition against mushroom tyrosinase. In addition, western blot analysis showed that at 60 µg/mL dose of PP60 significantly reduced L-DOPA-induced tyrosinase expression in melanoma cells. PP60 significantly inhibits the cellular tyrosinase (p < 0.05) and reduces the melanin (p < 0.05) contents of melanoma cells. Furthermore, PP60 was found to be very potent in significantly reducing the zebrafish embryos' pigmentation (p < 0.05) and melanin (p < 0.05) content at the dose of 60 µg/mL. Conclusions. Our results demonstrate that PP60 has a strong potency to reduce pigmentation. It may be useful for the cosmetic industries to develop skin whitening agents with minimal toxic effects.
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Lee S, Choi H, Park Y, Jung HJ, Ullah S, Choi I, Kang D, Park C, Ryu IY, Jeong Y, Hwang Y, Hong S, Chun P, Moon HR. Urolithin and Reduced Urolithin Derivatives as Potent Inhibitors of Tyrosinase and Melanogenesis: Importance of the 4-Substituted Resorcinol Moiety. Int J Mol Sci 2021; 22:ijms22115616. [PMID: 34070680 PMCID: PMC8199067 DOI: 10.3390/ijms22115616] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/17/2021] [Accepted: 05/22/2021] [Indexed: 12/17/2022] Open
Abstract
We previously reported (E)-β-phenyl-α,β-unsaturated carbonyl scaffold ((E)-PUSC) played an important role in showing high tyrosinase inhibitory activity and that derivatives with a 4-substituted resorcinol moiety as the β-phenyl group of the scaffold resulted in the greatest tyrosinase inhibitory activity. To examine whether the 4-substituted resorcinol moiety could impart tyrosinase inhibitory activity in the absence of the α,β-unsaturated carbonyl moiety of the (E)-PUSC scaffold, 10 urolithin derivatives were synthesized. To obtain more candidate samples, the lactone ring in synthesized urolithins was reduced to produce nine reduced urolithins. Compounds 1c (IC50 = 18.09 ± 0.25 μM), 1h (IC50 = 4.14 ± 0.10 μM), and 2a (IC50 = 15.69 ± 0.40 μM) had greater mushroom tyrosinase-inhibitory activities than kojic acid (KA) (IC50 = 48.62 ± 3.38 μM). The SAR results suggest that the 4-substituted resorcinol motif makes an important contribution to tyrosinase inhibition. To investigate whether these compounds bind to human tyrosinase, a human tyrosinase homology model was developed. Docking simulations with mushroom and human tyrosinases showed that 1c, 1h, and 2a bind to the active site of both tyrosinases with higher binding affinities than KA. Pharmacophore analyses showed that two hydroxyl groups of the 4-substituted resorcinol entity act as hydrogen bond donors in both mushroom and human tyrosinases. Kinetic analyses indicated that these compounds were all competitive inhibitors. Compound 2a inhibited cellular tyrosinase activity and melanogenesis in α-MSH plus IBMX-stimulated B16F10 melanoma cells more strongly than KA. These results suggest that 2a is a promising candidate for the treatment of skin pigment disorders, and show the 4-substituted resorcinol entity importantly contributes to tyrosinase inhibition.
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Affiliation(s)
- Sanggwon Lee
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Heejeong Choi
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Yujin Park
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Hee Jin Jung
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Sultan Ullah
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL 33458, USA;
| | - Inkyu Choi
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Dongwan Kang
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Chaeun Park
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Il Young Ryu
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Yeongmu Jeong
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - YeJi Hwang
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Sojeong Hong
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
| | - Pusoon Chun
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae 50834, Korea;
| | - Hyung Ryong Moon
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (S.L.); (H.C.); (Y.P.); (H.J.J.); (I.C.); (D.K.); (C.P.); (I.Y.R.); (Y.J.); (Y.H.); (S.H.)
- Correspondence: ; Tel.: +82-51-510-2815; Fax: +82-51-513-6754
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Choi I, Park Y, Ryu IY, Jung HJ, Ullah S, Choi H, Park C, Kang D, Lee S, Chun P, Young Chung H, Moon HR. In silico and in vitro insights into tyrosinase inhibitors with a 2-thioxooxazoline-4-one template. Comput Struct Biotechnol J 2020; 19:37-50. [PMID: 33363708 PMCID: PMC7753086 DOI: 10.1016/j.csbj.2020.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 12/16/2022] Open
Abstract
The β-phenyl-α,β-unsaturated carbonyl (PUSC) scaffold confers tyrosinase inhibitory activity, and in the present study, 16 (Z)-5-(substituted benzylidene)-3-phenyl-2-thioxooxazolidin-4-one analogues containing this scaffold were synthesized. Mushroom tyrosinase inhibitory activities were examined. Compound 1c (IC50 = 4.70 ± 0.40 μM) and compound 1j (IC50 = 11.18 ± 0.54 μM) inhibited tyrosinase by 4.9 and 2.1-fold, respectively, and did so more potently than kojic acid (IC50 = 23.18 ± 0.11 μM). Kinetic analysis of tyrosinase inhibition revealed that 1c and 1j inhibited tyrosinase competitively. Results of docking simulation with mushroom tyrosinase using four docking programs suggested that 1c and 1j bind more strongly than kojic acid to the active site of tyrosinase and supported kinetic findings that both compounds are competitive inhibitors. The docking results of human tyrosinase homology model indicated that 1c and 1j can also strongly inhibit human tyrosinase. EZ-cytox assays revealed 1c and 1j were not cytotoxic to B16F10 melanoma cells. The effects of 1c and 1j on cellular tyrosinase activity and melanin production were also investigated in α-MSH- and IBMX-co-stimulated these cells. Both compounds significantly and dose-dependently reduced tyrosinase activity, and at 10 µM were more potent than kojic acid at 20 µM. Compounds 1c and 1j also inhibited melanogenesis, which suggested that the inhibitory effects of these compounds on melanin production were mainly attributable to their inhibitions of tyrosinase. These results indicate that compounds 1c and 1j with the PUSC scaffold have potential use as whitening agents for the treatment of hyperpigmentation-associated diseases.
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Affiliation(s)
- Inkyu Choi
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Yujin Park
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Il Young Ryu
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Hee Jin Jung
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Sultan Ullah
- Department of Molecular Medicine, The Scripps Research Institute, FL 33458, USA
| | - Heejeong Choi
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Chaeun Park
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Dongwan Kang
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Sanggwon Lee
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Pusoon Chun
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae, Gyeongnam 50834, South Korea
| | - Hae Young Chung
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
| | - Hyung Ryong Moon
- College of Pharmacy, Pusan National University, Busan 46241, South Korea
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Ryu IY, Choi I, Ullah S, Choi H, Chun P, Moon HR. Tyrosinase Inhibitory Effects of Derivatives of (E)‐2‐(Substituted Benzylidene)‐3,4‐Dihydronaphthalen‐1(2H)‐One. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Il Young Ryu
- Laboratory of Medicinal Chemistry, College of Pharmacy Pusan National University Busan 46241 Republic of Korea
| | - Inkyu Choi
- Laboratory of Medicinal Chemistry, College of Pharmacy Pusan National University Busan 46241 Republic of Korea
| | - Sultan Ullah
- Laboratory of Medicinal Chemistry, College of Pharmacy Pusan National University Busan 46241 Republic of Korea
| | - Heejeong Choi
- Laboratory of Medicinal Chemistry, College of Pharmacy Pusan National University Busan 46241 Republic of Korea
| | - Pusoon Chun
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research Inje University Gimhae, Gyeongnam 50834 Republic of Korea
| | - Hyung Ryong Moon
- Laboratory of Medicinal Chemistry, College of Pharmacy Pusan National University Busan 46241 Republic of Korea
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Kamalifar S, Kiyani H. An expeditious and green one-pot synthesis of 12-substituted-3,3-dimethyl-3,4,5,12-tetrahydrobenzo[b]acridine-1,6,11(2H)-triones. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04014-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Natural and Bioinspired Phenolic Compounds as Tyrosinase Inhibitors for the Treatment of Skin Hyperpigmentation: Recent Advances. COSMETICS 2019. [DOI: 10.3390/cosmetics6040057] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
One of the most common approaches for control of skin pigmentation involves the inhibition of tyrosinase, a copper-containing enzyme which catalyzes the key steps of melanogenesis. This review focuses on the tyrosinase inhibition properties of a series of natural and synthetic, bioinspired phenolic compounds that have appeared in the literature in the last five years. Both mushroom and human tyrosinase inhibitors have been considered. Among the first class, flavonoids, in particular chalcones, occupy a prominent role as natural inhibitors, followed by hydroxystilbenes (mainly resveratrol derivatives). A series of more complex phenolic compounds from a variety of sources, first of all belonging to the Moraceae family, have also been described as potent tyrosinase inhibitors. As to the synthetic compounds, hydroxycinnamic acids and chalcones again appear as the most exploited scaffolds. Several inhibition mechanisms have been reported for the described inhibitors, pointing to copper chelating and/or hydrophobic moieties as key structural requirements to achieve good inhibition properties. Emerging trends in the search for novel skin depigmenting agents, including the development of assays that could distinguish between inhibitors and potentially toxic substrates of the enzyme as well as of formulations aimed at improving the bioavailability and hence the effectiveness of well-known inhibitors, have also been addressed.
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