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Mattio LM, Marengo M, Parravicini C, Eberini I, Dallavalle S, Bonomi F, Iametti S, Pinto A. Inhibition of Pancreatic α-amylase by Resveratrol Derivatives: Biological Activity and Molecular Modelling Evidence for Cooperativity between Viniferin Enantiomers. Molecules 2019; 24:E3225. [PMID: 31491840 PMCID: PMC6766848 DOI: 10.3390/molecules24183225] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/29/2019] [Accepted: 09/02/2019] [Indexed: 02/06/2023] Open
Abstract
To improve the current understanding of the role of stilbenoids in the management of diabetes, the inhibition of the pancreatic α-amylase by resveratrol derivatives was investigated. To approach in a systematic way, the mechanistic and structural aspects of the interaction, potential bioactive agents were prepared as single molecules, that were used for the biological evaluation of the determinants of inhibitory binding. Some dimeric stilbenoids-in particular, viniferin isomers- were found to be better than the reference drug acarbose in inhibiting the pancreatic α-amylase. Racemic mixtures of viniferins were more effective inhibitors than the respective isolated pure enantiomers at an equivalent total concentration, and displayed cooperative effects not observed with the individual enantiomers. The molecular docking analysis provided a thermodynamics-based rationale for the measured inhibitory ability and for the observed synergistic effects. Indeed, the binding of additional ligands on the surface of the alpha-amylase was found to decrease the dissociation constant of inhibitors bound to the active site of the enzyme, thus providing a mechanistic rationale for the observed inhibitory synergies.
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Affiliation(s)
- Luce M Mattio
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Mauro Marengo
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Chiara Parravicini
- Department of Pharmacological and Biomolecular Sciences (DiSFeB) & cDSRC, University of Milan, Via Balzaretti 9, 20133 Milano, Italy
| | - Ivano Eberini
- Department of Pharmacological and Biomolecular Sciences (DiSFeB) & cDSRC, University of Milan, Via Balzaretti 9, 20133 Milano, Italy
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Francesco Bonomi
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Stefania Iametti
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milano, Italy.
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Budisa N, Schneider T. Expanding the DOPA Universe with Genetically Encoded, Mussel-Inspired Bioadhesives for Material Sciences and Medicine. Chembiochem 2019; 20:2163-2190. [PMID: 30830997 DOI: 10.1002/cbic.201900030] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Indexed: 12/21/2022]
Abstract
Catechols are a biologically relevant group of aromatic diols that have attracted much attention as mediators of adhesion of "bio-glue" proteins in mussels of the genus Mytilus. These organisms use catechols in the form of the noncanonical amino acid l-3,4-dihydroxyphenylalanine (DOPA) as a building block for adhesion proteins. The DOPA is generated post-translationally from tyrosine. Herein, we review the properties, natural occurrence, and reactivity of catechols in the design of bioinspired materials. We also provide a basic description of the mussel's attachment apparatus, the interplay between its different molecules that play a crucial role in adhesion, and the role of post-translational modifications (PTMs) of these proteins. Our focus is on the microbial production of mussel foot proteins with the aid of orthogonal translation systems (OTSs) and the use of genetic code engineering to solve some fundamental problems in the bioproduction of these bioadhesives and to expand their chemical space. The major limitation of bacterial expression systems is their intrinsic inability to introduce PTMs. OTSs have the potential to overcome these challenges by replacing canonical amino acids with noncanonical ones. In this way, PTM steps are circumvented while the genetically programmed precision of protein sequences is preserved. In addition, OTSs should enable spatiotemporal control over the complex adhesion process, because the catechol function can be masked by suitable chemical protection. Such caged residues can then be noninvasively unmasked by, for example, UV irradiation or thermal treatment. All of these features make OTSs based on genetic code engineering in reprogrammed microbial strains new and promising tools in bioinspired materials science.
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Affiliation(s)
- Nediljko Budisa
- Institute of Chemistry, Technical University of Berlin, Müller-Breslau-Strasse 10, Berlin, 10623, Germany.,Chair of Chemical Synthetic Biology, Department of Chemistry, University of Manitoba, 144 Dysart Road, R3T 2N2, Winnipeg, MB, Canada
| | - Tobias Schneider
- Institute of Chemistry, Technical University of Berlin, Müller-Breslau-Strasse 10, Berlin, 10623, Germany
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Yang Y, Zhou H, Du G, Feng K, Feng T, Fu X, Liu J, Zeng Y. A Monooxygenase from
Boreostereum vibrans
Catalyzes Oxidative Decarboxylation in a Divergent Vibralactone Biosynthesis Pathway. Angew Chem Int Ed Engl 2016; 55:5463-6. [PMID: 27007916 DOI: 10.1002/anie.201510928] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/09/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Yan‐Long Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hui Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Gang Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ke‐Na Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Tao Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Xiao‐Li Fu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
| | - Ji‐Kai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Ying Zeng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
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Yang Y, Zhou H, Du G, Feng K, Feng T, Fu X, Liu J, Zeng Y. A Monooxygenase from
Boreostereum vibrans
Catalyzes Oxidative Decarboxylation in a Divergent Vibralactone Biosynthesis Pathway. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510928] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yan‐Long Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hui Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Gang Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ke‐Na Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Tao Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Xiao‐Li Fu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
| | - Ji‐Kai Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
- School of Pharmaceutical Sciences South-Central University for Nationalities Wuhan 430074 China
| | - Ying Zeng
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 Yunnan China
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Hosoya T, Rosenau T. Degradation of 2,5-Dihydroxy-1,4-benzoquinone by Hydrogen Peroxide under Moderately Alkaline Conditions Resembling Pulp Bleaching: A Combined Kinetic and Computational Study. J Org Chem 2013; 78:11194-203. [DOI: 10.1021/jo401486d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashi Hosoya
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Thomas Rosenau
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
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Yin X, Feng T, Li ZH, Dong ZJ, Li Y, Liu JK. Highly oxygenated meroterpenoids from fruiting bodies of the mushroom Tricholoma terreum. JOURNAL OF NATURAL PRODUCTS 2013; 76:1365-1368. [PMID: 23837944 DOI: 10.1021/np400359y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Four new meroterpenoids, terreumols A-D (1-4), with a rare 10-membered ring system, were isolated from the fruiting bodies of Tricholoma terreum. Their structures with absolute stereochemistry were determined by comprehensive spectroscopic methods, as well as single-crystal X-ray diffractions. Compounds 1, 3, and 4 were evaluated for their cytotoxicities against five human cancer cell lines; all of them exhibited inhibitory effects, with IC50 values comparable to those of cisplatin.
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Affiliation(s)
- Xia Yin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
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Hosoya T, Rosenau T. Degradation of 2,5-dihydroxy-1,4-benzoquinone by hydrogen peroxide: a combined kinetic and theoretical study. J Org Chem 2013; 78:3176-82. [PMID: 23419173 DOI: 10.1021/jo4001178] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
2,5-Dihydroxy-1,4-benzoquinone (DHBQ) is one of the key chromophores formed upon aging in cellulosic materials. This study addresses the degradation mechanism of DHBQ by hydrogen peroxide to provide a solid knowledge base for optimization of bleaching sequences aiming at DHBQ removal. Kinetic analysis provided an activation energy (E(a)) of 20.4 kcal/mol. Product analyses indicated the product mixture to contain malonic acid, acetic acid, and carbon dioxide. DFT(B3LYP) computation presented a plausible mechanism for the formation of these products from DHBQ. DHBQ forms intermediate I2k, having an intramolecular O-O bridge between C-2 and C-5 of the 1,4-cyclohexadione structure. This O-O bond is homolytically cleaved, and the subsequent β-fragmentation of the resulting radical forms ketene and oxaloacetic acid. While ketene yields acetic acid, oxaloacetic acid then gives malonic acid and carbon dioxide through further attack of hydrogen peroxide via an intermediate that is oxidatively decarboxylated. The calculated E(a) value (23.3 kcal/mol) in the rate-determining step, i.e., the homolysis of I2k, agreed well with the experimental value. There is also a minor pathway in which the spin state changes to triplet during the homolysis of I2k; in this way two malonyl radicals are formed that are converted to two molecules of malonic acid.
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Affiliation(s)
- Takashi Hosoya
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
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Zhao PJ, Yang YL, Du L, Liu JK, Zeng Y. Elucidating the Biosynthetic Pathway for Vibralactone: A Pancreatic Lipase Inhibitor with a Fused Bicyclic β-Lactone. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208182] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Zhao PJ, Yang YL, Du L, Liu JK, Zeng Y. Elucidating the Biosynthetic Pathway for Vibralactone: A Pancreatic Lipase Inhibitor with a Fused Bicyclic β-Lactone. Angew Chem Int Ed Engl 2013; 52:2298-302. [DOI: 10.1002/anie.201208182] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 11/22/2012] [Indexed: 11/09/2022]
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von Nussbaum F, Rüth M, Spiteller P, Hübscher-Weissert T, Löbermann F, Polborn K, Steglich W. Coloured Artefacts Formed by Oxidation of Benzene-1,2,4-triol and β-Dopa During the Extraction of Cortinarius violaceus (Agaricales) with Alcohols. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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