1
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Kumar N, Pandey SK. Metal-free synthesis of α-acyloxy ketones from carboxylic acids and sulfoxonium ylides. Org Biomol Chem 2023; 21:8819-8822. [PMID: 37899657 DOI: 10.1039/d3ob01683h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
A straightforward, catalyst- and additive-free approach has been described for synthesizing α-acyloxy ketones from β-ketosulfoxonium ylides and carboxylic acids. Moderate to high yields of α-acyloxy ketones were produced using sulfoxonium ylides and carboxylic acids adorned with various functional groups. Eventually, the applicability of this approach has been shown via a large-scale reaction and transforming the synthesized α-acyloxy ketone derivatives into other valuable compounds.
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Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India.
| | - Satyendra Kumar Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India.
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2
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Chen J, Jiang Y, Yan J, Xu C, Ye T. Total Syntheses of Colletopeptide A and Colletotrichamide A. Molecules 2023; 28:7194. [PMID: 37894673 PMCID: PMC10608858 DOI: 10.3390/molecules28207194] [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: 08/31/2023] [Revised: 09/27/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
The first total syntheses of cyclic depsipeptides colletopeptide A and colletotrichamide A, have been accomplished. The key advanced intermediate, a cyclic tridepsipeptide derivative, was constructed using a sequence of transformations that features asymmetric Brown crotylation, cross metathesis, Yamaguchi esterification, ozonolysis, and macrolactamization. A late-stage incorporation of the mannose fragment completed the synthesis of colletotrichamide A, and the desilylation of the common intermediate gave rise to colletopeptide A, which led to unambiguous confirmation of the absolute stereochemistry of the aforementioned natural products.
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Affiliation(s)
- Jing Chen
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China; (J.C.); (Y.J.)
| | - Yangyang Jiang
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China; (J.C.); (Y.J.)
| | - Jialei Yan
- Innovation Center of Marine Biotechnology and Pharmaceuticals, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China;
| | - Chao Xu
- Innovation Center of Marine Biotechnology and Pharmaceuticals, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China;
- QianYan (Shenzhen) Pharmatech. Ltd., Building-3, Longcheng Industrial Park, Qinglin Road West, Longgang District, Shenzhen 518172, China
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China; (J.C.); (Y.J.)
- QianYan (Shenzhen) Pharmatech. Ltd., Building-3, Longcheng Industrial Park, Qinglin Road West, Longgang District, Shenzhen 518172, China
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3
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Flores-Holguín N, Salas-Leiva JS, Glossman-Mitnik D. Computational Discovery of Marine Molecules of the Cyclopeptide Family with Therapeutic Potential. Pharmaceuticals (Basel) 2023; 16:1377. [PMID: 37895848 PMCID: PMC10610383 DOI: 10.3390/ph16101377] [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: 08/25/2023] [Revised: 09/14/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
Stellatolides are natural compounds that have shown promising biological activities, including antitumor, antimicrobial, and anti-inflammatory properties, making them potential candidates for drug development. Chemical Reactivity Theory (CRT) is a branch of chemistry that explains and predicts the behavior of chemical reactions based on the electronic structure of molecules. Conceptual Density Functional Theory (CDFT) and Computational Peptidology (CP) are computational approaches used to study the behavior of atoms, molecules, and peptides. In this study, we present the results of our investigation of the chemical reactivity and ADMET properties of Stellatolides A-H using a novel computational approach called Conceptual DFT-based Computational Peptidology (CDFT-CP). Our study uses CDFT and CP to predict the reactivity and stability of molecules and to understand the behavior of peptides at the molecular level. We also predict the ADMET properties of the Stellatolides A-H to provide insight into their effectiveness, potential side effects, and optimal dosage and route of administration, as well as their biological targets. This study sheds light on the potential of Stellatolides A-H as promising candidates for drug development and highlights the potential of CDFT-CP for the study of other natural compounds and peptides.
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4
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Mondal S, Mondal S, Midya SP, Das S, Mondal S, Ghosh P. Merging Photocatalytic C-O Cross-Coupling for α-Oxycarbonyl-β-ketones: Esterification of Carboxylic Acids via a Decarboxylative Pathway. Org Lett 2023; 25:184-189. [PMID: 36562790 DOI: 10.1021/acs.orglett.2c04041] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, the first merged photocatalytic pathway for the C-O cross-coupled esterification of carboxylic acids to α-oxycarbonyl-β-ketones has been demonstrated. Decarboxylation of α,β-unsaturated acids promotes the formation of the β-ketone fragment of the desired product. Water as the source of oxygen for the ketone segment and aerial oxygen as an oxidant make the present synthetic methodology green and sustainable. This new C═O and C-O bond-forming methodology takes place in a cascade manner under a dual Ir/Pd-catalytic pathway, with the liberation of H2O and CO2 as the only byproducts.
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Affiliation(s)
- Soumya Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Subal Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Siba P Midya
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Suman Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Sahidul Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
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5
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Calabretta LO, Yang J, Raines RT. N α -Methylation of arginine: Implications for cell-penetrating peptides. J Pept Sci 2022; 29:e3468. [PMID: 36494904 PMCID: PMC10073267 DOI: 10.1002/psc.3468] [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: 09/29/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
The field of cell-penetrating peptides is dominated by the use of oligomers of arginine residues. Octanol-water partitioning in the presence of an anionic lipid is a validated proxy for cell-penetrative efficacy. Here, we add one, two, or three N-methyl groups to Ac-Arg-NH2 and examine the effects on octanol-water partitioning. In the absence of an anionic lipid, none of these arginine derivatives can be detected in the octanol layer. In the presence of sodium dodecanoate, however, increasing N-methylation correlates with increasing partitioning into octanol, which is predictive of higher cell-penetrative ability. We then evaluated fully Nα -methylated oligoarginine peptides and observed an increase in their cellular penetration compared with canonical oligoarginine peptides in some contexts. These findings indicate that a simple modification, Nα -methylation, can enhance the performance of cell-penetrating peptides.
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Affiliation(s)
- Lindsey O Calabretta
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Jinyi Yang
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Ronald T Raines
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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6
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Divergent synthesis of biologically active L-threo-β-hydroxyaspartates from common trans-oxazolidine dicarboxylate. Amino Acids 2022; 54:1601-1610. [PMID: 35963916 DOI: 10.1007/s00726-022-03196-8] [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: 02/26/2022] [Accepted: 07/30/2022] [Indexed: 11/01/2022]
Abstract
A divergent synthetic strategy starting from a common trans-oxazolidine dicarboxylate intermediate has been successful to produce several non-proteinogenic L-threo-β-hydroxyaspartate derivatives efficiently with high stereoselectivity. Three bioactive α-amino-β-hydroxy acids, L-threo-β-hydroxyaspartic acid, L-threo-β-hydroxyasparagine, and L-threo-β-benzyloxyaspartic acid, were synthesized in good yields (58-83%) from the common chiral intermediate, and the chemoselective peptide bond formation at the α-amino group, β-hydroxy group, or α-carboxylic acid of the common intermediate was possible to afford the corresponding dipeptide, tripeptide, or didepsipeptide intermediate in 46~77% yields (in three-to-four steps) due to the orthogonal protective groups on the chiral intermediate.
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7
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C VL, Katari NK, M GP, Kerru N, Rekulapally VK, Jonnalagadda SB. Methyl 2-[(tert-Butoxycarbonyl)amino]-3-hydroxy-3-phenylpropanoate: Synthesis of Erythro (±) Isomer by Reduction and Threo (±) Isomer by Inversion Method. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363221120252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Flores-Holguín N, Frau J, Glossman-Mitnik D. Computational peptidology approach to the study of the chemical reactivity and bioactivity properties of Aspergillipeptide D, a cyclopentapeptide of marine origin. Sci Rep 2022; 12:506. [PMID: 35017576 PMCID: PMC8752680 DOI: 10.1038/s41598-021-04513-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/24/2021] [Indexed: 12/19/2022] Open
Abstract
Aspergillipeptide D is a cyclic pentapeptide isolated from the marine gorgonian Melitodes squamata-derived fungus Aspergillus sp. SCSIO 41501 that it has been shown to present moderate activity against herpes virus simplex type 1 (HSV-1). Thus, this paper presents the results of a computational study of this cyclopentapeptide's chemical reactivity and bioactivity properties using a CDFT-based computational peptidology (CDFT-CP) methodology, which is derived from combining chemical reactivity descriptors derived from Conceptual Density Functional Theory (CDFT) and some Cheminformatics tools which may be used. This results in an improvement of the virtual screening procedure by a similarity search allowing the identification and validation of the known ability of the peptide to act as a possible useful drug. This was followed by an examination of the drug's bioactivity and pharmacokinetics indices in relation to the ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) characteristics. The findings provide further evidence of the MN12SX density functional's superiority in proving the Janak and Ionization Energy theorems using the proposed KID approach. This has proven to be beneficial in accurately predicting CDFT reactivity characteristics, which aid in the understanding of chemical reactivity. The Computational Pharmacokinetics study revealed the potential ability of Aspergillipeptide D as a therapeutic drug through the interaction with different target receptors. The ADMET indices confirm this assertion through the absence of toxicity and good absorption and distribution properties.
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Affiliation(s)
- Norma Flores-Holguín
- Laboratorio Virtual NANOCOSMOS, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, 31136, Chihuahua, CHIH, Mexico
| | - Juan Frau
- Departament de Química, Universitat de les Illes Balears, Palma de Mallorca, 07122, Spain
| | - Daniel Glossman-Mitnik
- Laboratorio Virtual NANOCOSMOS, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, 31136, Chihuahua, CHIH, Mexico.
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9
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Wu C, Hoang HN, Hill TA, Lim J, Kok WM, Akondi K, Liu L, Fairlie DP. Helical structure in cyclic peptides: effect of N-methyl amides versus esters. Chem Commun (Camb) 2022; 58:12475-12478. [DOI: 10.1039/d2cc05092g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclic peptides with esters but not N-methyl amides are the smallest known alpha helices in water and can enter cells.
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Affiliation(s)
- Chongyang Wu
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - Huy N. Hoang
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - Timothy A. Hill
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - Junxian Lim
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - W. Mei Kok
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - Kalyani Akondi
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - Ligong Liu
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
| | - David P. Fairlie
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, University of Queensland, Brisbane, Qld 4072, Australia
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10
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Park SH, Hwang I, McNaughton DA, Kinross AJ, Howe EN, He Q, Xiong S, Kilde MD, Lynch VM, Gale PA, Sessler JL, Shin I. Synthetic Na +/K + exchangers promote apoptosis by disturbing cellular cation homeostasis. Chem 2021; 7:3325-3339. [PMID: 38239771 PMCID: PMC10795848 DOI: 10.1016/j.chempr.2021.08.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A number of artificial cation ionophores (or transporters) have been developed for basic research and biomedical applications. However, their mechanisms of action and the putative correlations between changes in intracellular cation concentrations and induced cell death remain poorly understood. Here, we show that three hemispherand-strapped calix[4]pyrrole-based ion-pair receptors act as efficient Na+/K+ exchangers in the presence of Cl- in liposomal models and promote Na+ influx and K+ efflux (Na+/K+ exchange) in cancer cells to induce apoptosis. Mechanistic studies reveal that these cation exchangers induce endoplasmic reticulum (ER) stress in cancer cells by perturbing intracellular cation homeostasis, promote generation of reactive oxygen species, and eventually enhance mitochondria-mediated apoptosis. However, they neither induce osmotic stress nor affect autophagy. This study provides support for the notion that synthetic receptors, which perturb cellular cation homeostasis, may provide new small molecules with potentially useful apoptotic activity.
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Affiliation(s)
- Sang-Hyun Park
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
- These authors contributed equally
| | - Inhong Hwang
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, TX 78712, USA
- These authors contributed equally
| | - Daniel A. McNaughton
- School of Chemistry (F11), The University of Sydney, Sydney, NSW 2006, Australia
- These authors contributed equally
| | - Airlie J. Kinross
- School of Chemistry (F11), The University of Sydney, Sydney, NSW 2006, Australia
| | - Ethan N.W. Howe
- School of Chemistry (F11), The University of Sydney, Sydney, NSW 2006, Australia
- Present address: GlaxoSmithKline, GSK Jurong, 1 Pioneer Sector 1, Singapore 628413
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Shenglun Xiong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Martin Drøhse Kilde
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, TX 78712, USA
- Present address: Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Vincent M. Lynch
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, TX 78712, USA
| | - Philip A. Gale
- School of Chemistry (F11), The University of Sydney, Sydney, NSW 2006, Australia
- The University of Sydney Nano Institute (SydneyNano), The University of Sydney, Sydney, NSW 2006, Australia
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, TX 78712, USA
- Lead contact
| | - Injae Shin
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
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11
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Klöppel S, Richarz R, Wirtz DA, Vasenda N, König GM, Crüsemann M. A Specialized Dehydrogenase Provides l-Phenyllactate for FR900359 Biosynthesis. Chembiochem 2021; 23:e202100569. [PMID: 34846772 PMCID: PMC9299796 DOI: 10.1002/cbic.202100569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/29/2021] [Indexed: 11/30/2022]
Abstract
d‐Phenyllactate (PLA) is a component of the selective Gq protein inhibitor and nonribosomal cyclic depsipeptide FR900359 (FR). Here we report a detailed biochemical investigation of pla biosynthesis and its incorporation into the natural product FR. The enzyme FrsC, member of the lactate/malate dehydrogenase superfamily, was shown to catalyze the formation of l‐PLA from phenylpyruvate. FrsC was kinetically characterized and its substrate specificity determined. Incorporation of l‐PLA was probed by assaying the adenylation domain FrsE‐A3 and feeding studies with a Chromobacterium vaccinii ΔfrsC mutant, confirming preferred activation of l‐PLA followed by on‐line epimerization to d‐pla. Finally, detailed bioinformatic analyses of FrsC revealed its close relation to malate dehydrogenases from primary metabolism and suggest extensions in the substrate binding loop to be responsible for its adaptation to accepting larger aromatic substrates with high specificity.
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Affiliation(s)
- Sophie Klöppel
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - René Richarz
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - Daniel A Wirtz
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - Natalia Vasenda
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - Gabriele M König
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
| | - Max Crüsemann
- Institute of Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany
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12
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Flores‐Holguín N, Frau J, Glossman‐Mitnik D. Computational Pharmacokinetics Report, ADMET Study and Conceptual DFT-Based Estimation of the Chemical Reactivity Properties of Marine Cyclopeptides. ChemistryOpen 2021; 10:1142-1149. [PMID: 34806828 PMCID: PMC8607802 DOI: 10.1002/open.202100178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/04/2021] [Indexed: 11/17/2022] Open
Abstract
Homophymines A-E and A1-E1 are bioactive natural cyclodepsipeptides with a complex molecular architecture. These molecules could have a potential use as antimicrobial, antiviral, and anticancer substances. We have carried out a computational study of the properties of this family of marine peptides using a CDFT-based Computational Peptidology (CDFT-CP) methodology that results from the combination of the chemical reactivity descriptors that arise from conceptual Density Functional Theory (CDFT) together with cheminformatics tools. The latter can be used to estimate the associated physicochemical parameters and to improve the process of virtual screening through a similarity search. Using this approach, the ability of the peptides to behave as a potentially useful drugs can be investigated. An analysis of their bioactivity and pharmacokinetics indices related to the ADMET (Absorption, Distribution, Metabolism, Excretion and Toxicity) features has also been carried out.
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Affiliation(s)
- Norma Flores‐Holguín
- Laboratorio Virtual NANOCOSMOSDepartamento de Medio Ambiente y EnergíaCentro de Investigación en Materiales AvanzadosMiguel de Cervantes 120, Complejo Industrial Chihuahua31136Chihuahua, ChihMexico
| | - Juan Frau
- Departament de QuímicaFacultat de CiencesUniversitat de les Illes Balears07122Pama de MallorcaSpain
| | - Daniel Glossman‐Mitnik
- Laboratorio Virtual NANOCOSMOSDepartamento de Medio Ambiente y EnergíaCentro de Investigación en Materiales AvanzadosMiguel de Cervantes 120, Complejo Industrial Chihuahua31136Chihuahua, ChihMexico
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13
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A CDFT-Based Computational Peptidology (CDFT-CP) Study of the Chemical Reactivity and Bioactivity of the Marine-Derived Alternaramide Cyclopentadepsipeptide. J CHEM-NY 2021. [DOI: 10.1155/2021/2989611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Alternaramide is a cyclic pentadepsipeptide isolated from marine sources that has been shown to present weak antibiotic activity against Bacillus subtilis and Staphylococcus aureus as well as inhibitory effects on inflammatory mediator expressions. Thus, this work reports the results of a computational study of the chemical reactivity and bioactivity properties of this cyclopentadepsipeptide considering a CDFT-based computational peptidology (CDFT-CP) methodology that results from the combination of the chemical reactivity descriptors that arise from conceptual density functional theory (CDFT) together with some cheminformatics tools that can be used to estimate the associated physicochemical parameters, to improve the process of virtual screening through a similarity search, and to identify the ability of the peptide to behave as a potential useful drug, complemented with an analysis of its bioactivity and pharmacokinetics indices related to the ADMET (absorption, distribution, metabolism, excretion, and toxicity) features. The results represent a new confirmation of the superiority of the MN12SX density functional in the fulfilment of the Janak and ionization energy theorems through the proposed KID procedure. This has been useful for the accurate prediction of the CDFT reactivity descriptors that help in understanding the chemical reactivity. The computational pharmacokinetics study revealed the potential ability of alternaramide as a therapeutic drug by interacting with GPCR ligands and protease inhibitors. The ADMET indices confirm this assertion through the absence of toxicity and good absorption and distribution properties.
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14
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Rodríguez-Expósito RL, Sosa-Rueda J, Reyes-Batlle M, Sifaoui I, Cen-Pacheco F, Daranas AH, Díaz-Marrero AR, Piñero JE, Fernández JJ, Lorenzo-Morales J. Antiamoeboid activity of squamins C-F, cyclooctapeptides from Annona globifora. INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE 2021; 17:67-79. [PMID: 34411895 PMCID: PMC8377437 DOI: 10.1016/j.ijpddr.2021.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/03/2021] [Accepted: 08/09/2021] [Indexed: 11/17/2022]
Abstract
Free-living amoebae of Acanthamoeba spp. are causative agents of human infections such as granulomatous amoebic encephalitis (GAE) and Acanthamoeba keratitis (AK). The exploration of innovative chemical entities from natural sources that induce intrinsic apoptotic pathway or a Programmed Cell Death (PCD) in Acanthamoeba protozoa is essential to develop new therapeutic strategies. In this work, the antiamoeboid activity of squamins C-F (1-4), four cyclooctapeptides isolated from Annona globiflora was tested in vitro against Acanthamoeba castellanii Neff, A. polyphaga, A. quina, and A. griffini, and a structure-activity relationship was also established. The most sensitive strain against all tested cyclooctapeptides was A. castellanii Neff being the R conformers of the S-oxo-methionine residue, squamins D (2) and F (4), the most active against the trophozoite stage. It is remarkable that all four peptides showed no cytotoxic effects against murine macrophages cell line J774A.1. The analysis of the mode of action of squamins C-F against A. castellanii indicate that these cyclopeptides induced the mechanisms of programmed cell death (PCD). All peptides trigger mitochondrial damages, significant inhibition of ATP production compared to the negative control, chromatin condensation and slight damages in membrane that affects its permeability despite it conserves integrity at the IC90 for 24 h. An increase in reactive oxygen species (ROS) was observed in all cases.
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Affiliation(s)
- Rubén L Rodríguez-Expósito
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, 38203, La Laguna, Tenerife, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38203, La Laguna, Tenerife, Spain; Red de Investigación Cooperativa en Enfermedades Tropicales (RICET), Madrid, Spain
| | - Javier Sosa-Rueda
- Facultad de Bioanálisis, Universidad Veracruzana (UV), Agustín de Iturbide s/n, Centro, 91700Veracruz, Veracruz, Mexico
| | - María Reyes-Batlle
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, 38203, La Laguna, Tenerife, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38203, La Laguna, Tenerife, Spain; Red de Investigación Cooperativa en Enfermedades Tropicales (RICET), Madrid, Spain
| | - Ines Sifaoui
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, 38203, La Laguna, Tenerife, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38203, La Laguna, Tenerife, Spain; Red de Investigación Cooperativa en Enfermedades Tropicales (RICET), Madrid, Spain
| | - Francisco Cen-Pacheco
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain; Facultad de Bioanálisis, Universidad Veracruzana (UV), Agustín de Iturbide s/n, Centro, 91700Veracruz, Veracruz, Mexico.
| | - Antonio Hernández Daranas
- Instituto de Productos Naturales y Agrobiología (IPNA), Consejo Superior de Investigaciones Científicas (CSIC), Avda. Astrofísico Francisco Sánchez 3, 38206, La Laguna, Tenerife, Spain
| | - Ana R Díaz-Marrero
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain
| | - José E Piñero
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, 38203, La Laguna, Tenerife, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38203, La Laguna, Tenerife, Spain; Red de Investigación Cooperativa en Enfermedades Tropicales (RICET), Madrid, Spain.
| | - José J Fernández
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain; Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, 38206, La Laguna, Tenerife, Spain.
| | - Jacob Lorenzo-Morales
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, 38203, La Laguna, Tenerife, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38203, La Laguna, Tenerife, Spain; Red de Investigación Cooperativa en Enfermedades Tropicales (RICET), Madrid, Spain.
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15
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Kumar B, Maity J, Shankar B, Kumar S, Kavita, Prasad AK. Synthesis of d-glycopyranosyl depsipeptides using Passerini reaction. Carbohydr Res 2021; 500:108236. [PMID: 33516073 DOI: 10.1016/j.carres.2021.108236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
A protocol based on Passerini multi-component reaction has been developed for facile, efficient and atom economical synthesis of a small library of twenty potential bioactive (2R)-2-(d-glycopyranosyl)-2-acyloxyacetamides using perbenzylated d-glycopyranosyl aldehydes, substituted isocyanides and different aliphatic/aromatic carboxylic acids. All twenty synthesized d-glycopyranosyl α-acyloxy amides, commonly known as depsipeptides were unambiguously identified on the basis of their spectral (IR, 1H, 13C NMR, COSY, HSQC, NOESY and HRMS) data analysis.
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Affiliation(s)
- Banty Kumar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India; Department of Chemistry, Rajdhani College, University of Delhi, Delhi, 110015, India
| | - Jyotirmoy Maity
- Department of Chemistry, St. Stephen's College, University of Delhi, Delhi, 110007, India
| | - Bhawani Shankar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India; Department of Chemistry, Deshbandhu College, University of Delhi, Delhi, 110019, India
| | - Sandeep Kumar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Kavita
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Ashok K Prasad
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India.
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16
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Wills R, Adebomi V, Raj M. Site-Selective Peptide Macrocyclization. Chembiochem 2020; 22:52-62. [PMID: 32794268 DOI: 10.1002/cbic.202000398] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/11/2020] [Indexed: 12/11/2022]
Abstract
Cyclized peptides have seen a rise in popularity in the pharmaceutical industry as drug molecules. As such, new macrocyclization methodologies have become abundant in the last several decades. However, efficient methods of cyclization without the formation of side products remain a great challenge. Herein, we review cyclization approaches that focus on site-selective chemistry. Site selectivity in macrocyclization decreases the generation of side products, leading to a greater yield of the desired peptide macrocycles. We will also take an in-depth look at the new exclusively intramolecular N-terminal site-selective CyClick strategy for the synthesis of cyclic peptides. The CyClick method uses imine formation between an aldehyde and the N terminus. The imine is then trapped by a nucleophilic attack from the second amidic nitrogen in an irreversible site-selective fashion.
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Affiliation(s)
- Rachel Wills
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA
| | - Victor Adebomi
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA
| | - Monika Raj
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, USA
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17
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On-resin multicomponent 1,3-dipolar cycloaddition of cyclopentanone-proline enamines and sulfonylazides as an efficient tool for the synthesis of amidino depsipeptide mimics. Amino Acids 2019; 52:15-24. [PMID: 31781906 DOI: 10.1007/s00726-019-02805-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 11/12/2019] [Indexed: 02/06/2023]
Abstract
Depsipeptides are biologically active peptide derivatives that possess a high therapeutic interest. The development of depsipeptide mimics characterized by a chemical diversity could lead to compounds with enhanced features and activity. In this work, an on-resin multicomponent procedure for the synthesis of amidino depsipeptide mimics is described. This approach exploits a metal-free 1,3-dipolar cycloaddition of cyclopentanone-proline enamines and sulfonylazides. In this reaction, the obtained primary cycloadduct undergoes a ring opening and molecular rearrangement giving access to a linear sulfonyl amidine functionalized with both a peptide chain and a diazoalkane. The so-obtained diazo function "one pot" reacts with the carboxylic group of N-Fmoc-protected amino acids leading to amidino depsipeptide mimics possessing a C4 aliphatic chain. An important advantage of this procedure is the possibility to easily obtain amidino-functionalized derivatives that are proteolytically stable peptide bond bioisosteres. Moreover, the conformational freedom given by the alkyl chain could promote the obtainment of cyclic depsipeptide with a stabilized secondary structure as demonstrated with both in silico calculations and experimental conformational studies. Finally, labeled depsipeptide mimics can be also synthesized using a fluorescent sulfonylazide in the multicomponent reaction.
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18
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Sclerin, a New Cytotoxic Cyclononapeptide from Annona scleroderma. Molecules 2019; 24:molecules24030554. [PMID: 30717439 PMCID: PMC6384883 DOI: 10.3390/molecules24030554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 01/28/2019] [Accepted: 01/31/2019] [Indexed: 11/17/2022] Open
Abstract
A new cytotoxic cyclononapeptide, sclerin, cyclo(–Dab1–Ser2–Tyr3–Gly4–Thr5–Val6–Ala7– Ile8–Pro9–) (1), was isolated from the methanol extract of the seeds of Annona scleroderma, together with the known metabolite, cyclosenegalin A, cyclo(–Pro1–Gly2–Leu3–Ser4–Ala5–Val6–Thr7–) (2). The planar structures for the two compounds were established by comprehensive analysis of NMR and ESI-HRMS data, and the absolute stereochemistry was stablished by Marfey’s method. Compound 1 showed moderate cytotoxic activity against the human prostate carcinoma cell line DU-145 at µM concentration.
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19
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Rosés C, Camó C, Oliveras À, Moll L, López N, Feliu L, Planas M. Total Solid-Phase Synthesis of Dehydroxy Fengycin Derivatives. J Org Chem 2018; 83:15297-15311. [PMID: 30525634 DOI: 10.1021/acs.joc.8b02553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A rapid and efficient solid-phase strategy for the synthesis of dehydroxy fengycins derivatives is described. This synthetic approach involved the linkage of a Tyr to a Wang resin via a Mitsunobu reaction and the elongation of the peptide sequence followed by subsequent acylation of the N-terminus of the resulting linear peptidyl resin, esterification of the phenol group of a Tyr with an Ile, and final macrolactamization. The amino acid composition as well as the presence of the N-terminal acyl group significantly influenced the stability of the macrolactone. Cyclic lipodepsipeptides with a l-Tyr3/d-Tyr9 configuration were more stable than those containing the Tyr residues with an opposite configuration. This work constitutes the first approach on the total solid-phase synthesis of dehydroxy fengycin derivatives.
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Affiliation(s)
- Cristina Rosés
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
| | - Cristina Camó
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
| | - Àngel Oliveras
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
| | - Lluis Moll
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
| | - Nerea López
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
| | - Lidia Feliu
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
| | - Marta Planas
- LIPPSO, Department of Chemistry , University of Girona , Maria Aurèlia Capmany 69 , 17003 Girona , Spain
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20
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Guo W, Wang S, Li N, Li F, Zhu T, Gu Q, Guo P, Li D. Saroclides A and B, Cyclic Depsipeptides from the Mangrove-Derived Fungus Sarocladium kiliense HDN11-112. JOURNAL OF NATURAL PRODUCTS 2018; 81:1050-1054. [PMID: 29498850 DOI: 10.1021/acs.jnatprod.7b00644] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two new depsipeptides (1 and 2), together with three known related compounds, pestalotin (3), pestalotiopyrone L (4), and PC-2 (5), were discovered in the extract of a mangrove derived fungus Sarocladium kiliense HDN11-112. The structures of saroclides A and B were established by interpretation of extensive NMR spectroscopic data and X-ray crystallographic analysis. Compound 1 was also produced by Simplicillium lamellicola HDN13-430. Compounds 1 and 2 were inactive against five cancer cell lines and four pathogenic microorganisms, while compound 1 showed a lipid-lowering effect.
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Affiliation(s)
- Wenqiang Guo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Shuai Wang
- Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100193 , People's Republic of China
| | - Na Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Feng Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
| | - Peng Guo
- Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100193 , People's Republic of China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy , Ocean University of China , Qingdao 266003 , People's Republic of China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao , 266237 , People's Republic of China
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21
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Cheng-Sánchez I, Carrillo P, Sánchez-Ruiz A, Martínez-Poveda B, Quesada AR, Medina MA, López-Romero JM, Sarabia F. Exploring the Ring-Closing Metathesis for the Construction of the Solomonamide Macrocyclic Core: Identification of Bioactive Precursors. J Org Chem 2018; 83:5365-5383. [DOI: 10.1021/acs.joc.7b02988] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Iván Cheng-Sánchez
- Department of Organic Chemistry; Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Paloma Carrillo
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Antonio Sánchez-Ruiz
- Organic Chemistry Section, Faculty of Pharmacy, University of Castilla-La Mancha, Avda Dr. José María Sánchez Ibáñez s/n, 02008, Albacete, Spain
| | - Beatriz Martínez-Poveda
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Ana R. Quesada
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Miguel A. Medina
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Juan M. López-Romero
- Department of Organic Chemistry; Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Francisco Sarabia
- Department of Organic Chemistry; Faculty of Sciences, University of Malaga, Campus de Teatinos s/n, 29071, Malaga, Spain
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22
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Faggi E, Luis SV, Alfonso I. Sensing, Transport and Other Potential Biomedical Applications of Pseudopeptides. Curr Med Chem 2018; 26:4065-4097. [PMID: 29493442 DOI: 10.2174/0929867325666180301091040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 01/17/2018] [Accepted: 01/20/2018] [Indexed: 11/22/2022]
Abstract
Pseudopeptides are privileged synthetic molecules built from the designed combination of peptide-like and abiotic artificial moieties. Consequently, they are benefited from the advantages of both families of chemical structures: modular synthesis, chemical and functional diversity, tailored three-dimensional structure, usually high stability in biological media and low non-specific toxicity. Accordingly, in the last years, these compounds have been used for different biomedical applications, ranging from bio-sensing, ion transport, the molecular recognition of biologically relevant species, drug delivery or gene transfection. This review highlights a selection of the most remarkable and recent advances in this field.
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Affiliation(s)
- Enrico Faggi
- Department of Biological Chemistry and Molecular Modelling, Institute of Advanced Chemistry of Catalonia, Consejo Superior de Investigaciones Cientificas, Barcelona, Spain
| | - Santiago V Luis
- Department of Inorganic and Organic Chemistry, Universitat Jaume I, Castellon, Spain
| | - Ignacio Alfonso
- Department of Biological Chemistry and Molecular Modelling, Institute of Advanced Chemistry of Catalonia, Consejo Superior de Investigaciones Cientificas, Barcelona, Spain
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23
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Ibrahim SRM, Abdallah HM, Elkhayat ES, Al Musayeib NM, Asfour HZ, Zayed MF, Mohamed GA. Fusaripeptide A: new antifungal and anti-malarial cyclodepsipeptide from the endophytic fungus Fusarium sp. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:75-85. [PMID: 28446036 DOI: 10.1080/10286020.2017.1320989] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 04/16/2017] [Indexed: 06/07/2023]
Abstract
From the culture of the endophytic fungus Fusarium sp. isolated from the roots of Mentha longifolia L. (Labiatae) growing in Saudi Arabia, a new cyclodepsipeptide, namely fusaripeptide A (1), along with three known compounds adenosine (2), 2[(2-hydroxypropionyl)amino]benzamide (3), and cyclopentanol (4), have been isolated. Their structures were determined, using extensive 1D and 2D NMR and HRESI and GC mass spectral data. That is the first report for the isolation of compound 4 from natural source. In addition, compounds 2 and 3 are reported here for the first time from Fusarium sp. The absolute configuration of the amino acid residues of 1 was assigned by chiral GCMS and Marfey's analysis after acid hydrolysis. Fusaripeptide A differs from the reported ones from Fusarium sp. in the length of fatty acidic alkyl chain. Compound 1 was evaluated for its antifungal, anti-malarial, and cytotoxic activities. It exhibited potent antifungal activity toward C. albicans, C. glabrata, C. krusei, and A. fumigates with IC50 values of 0.11, 0.24, 0.19, and 0.14 μM, respectively. Furthermore, it had significant anti-malarial activity toward P. falciparum (D6 clone) with IC50 value of 0.34 μM. However, it showed cytotoxic activity toward the tested cell lines.
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Affiliation(s)
- Sabrin R M Ibrahim
- a Department of Pharmacognosy and Pharmaceutical Chemistry , College of Pharmacy, Taibah University , Al Madinah Al Munawwarah 30078 , Saudi Arabia
- b Department of Pharmacognosy, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
| | - Hossam M Abdallah
- c Department of Natural Products and Alternative Medicine, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
- d Department of Pharmacognosy, Faculty of Pharmacy , Cairo University , Cairo 11562 , Egypt
| | - Ehab S Elkhayat
- e Department of Pharmacognosy, Faculty of Pharmacy , Al-Azhar University, Assiut Branch , Assiut 71524 , Egypt
| | - Nawal M Al Musayeib
- f Department of Pharmacognosy , College of Pharmacy, King Saud University , Riyadh 11451 , Saudi Arabia
| | - Hani Z Asfour
- g Department of Medical Microbiology and Parasitology, Faculty of Medicine , Princess Al-Jawhara Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Mohamed F Zayed
- a Department of Pharmacognosy and Pharmaceutical Chemistry , College of Pharmacy, Taibah University , Al Madinah Al Munawwarah 30078 , Saudi Arabia
- h Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Al-Azhar University , Cairo 11371 , Egypt
| | - Gamal A Mohamed
- c Department of Natural Products and Alternative Medicine, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
- e Department of Pharmacognosy, Faculty of Pharmacy , Al-Azhar University, Assiut Branch , Assiut 71524 , Egypt
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24
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The Natural Fungal Metabolite Beauvericin Exerts Anticancer Activity In Vivo: A Pre-Clinical Pilot Study. Toxins (Basel) 2017; 9:toxins9090258. [PMID: 28837057 PMCID: PMC5618191 DOI: 10.3390/toxins9090258] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/27/2017] [Accepted: 08/22/2017] [Indexed: 01/03/2023] Open
Abstract
Recently, in vitro anti-cancer properties of beauvericin, a fungal metabolite were shown in various cancer cell lines. In this study, we assessed the specificity of this effect by comparing beauvericin cytotoxicity in malignant versus non-malignant cells. Moreover, we tested in vivo anticancer effects of beauvericin by treating BALB/c and CB-17/SCID mice bearing murine CT-26 or human KB-3-1-grafted tumors, respectively. Tumor size and weight were measured and histological sections were evaluated by Ki-67 and H/E staining as well as TdT-mediated-dUTP-nick-end (TUNEL) labeling. Beauvericin levels were determined in various tissues and body fluids by LC-MS/MS. In addition to a more pronounced activity against malignant cells, we detected decreased tumor volumes and weights in beauvericin-treated mice compared to controls in both the allo- and the xenograft model without any adverse effects. No significant differences were detected concerning percentages of proliferating and mitotic cells in tumor sections from treated and untreated mice. However, a significant increase of necrotic areas within whole tumor sections of beauvericin-treated mice was found in both models corresponding to an enhanced number of TUNEL-positive, i.e., apoptotic, cells. Furthermore, moderate beauvericin accumulation was detected in tumor tissues. In conclusion, we suggest beauvericin as a promising novel natural compound for anticancer therapy.
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25
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Chettu SK, Konidena LNS, Korupolu RB, Kameswara Rao N, Doddipalla R, Gandham HB, Guduru R. Ring opening of benzoxazinones: An improved and efficient synthesis of clavatustides A & B. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Hameed A, Al-Rashida M, Alharthy RD, Uroos M, Mughal EU, Ali SA, Khan KM. Small molecules as activators in medicinal chemistry (2000-2016). Expert Opin Ther Pat 2017; 27:1089-1110. [PMID: 28673105 DOI: 10.1080/13543776.2017.1349103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
INTRODUCTION From therapeutic point of view, it is often beneficial to enhance the expression of certain enzymes whose low expression is responsible for the observed ailment. Small molecules as activators of several enzymes have great biological potential as anti-microbial and anti-cancer agents, for the treatment of diabetes, obesity, metabolic disorders, and for the treatment of neurological disorders including Alzheimer's disease. This review covers patents describing small molecules as activators, and provides structural leads for the design of even more potent activators. Area covered: This review is focused on small molecules that have been explored as activators of enzymes in the last and current decade (2000-2016). Expert opinion: The ability to modulate activity of enzymes has long been a quest of medicinal chemistry. This has been the impetus behind the development of a plethora of drugs as enzyme inhibitors. However only a few enzyme activators as drugs have made it to the market. Disorders characterized by supressed enzyme activity can be treated by enhancing the activity of a specific enzyme.
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Affiliation(s)
- Abdul Hameed
- a H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan
| | - Mariya Al-Rashida
- b Department of Chemistry , Forman Christian College (A Chartered University) , Lahore , Pakistan
| | - Rima D Alharthy
- c Department of Chemistry, Science and Arts College , King Abdulaziz University , Jeddah , Saudi Arabia
| | - Maliha Uroos
- d Institute of Chemistry , University of the Punjab , Lahore , Pakistan
| | | | - Syed Abid Ali
- a H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan
| | - Khalid Mohammed Khan
- a H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan
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27
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Acosta GA, Royo M, de la Torre BG, Albericio F. Facile solid-phase synthesis of head-side chain cyclothiodepsipeptides through a cyclative cleavage from MeDbz-resin. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.06.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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28
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Šmelcerović Ž, Tomović K, Yancheva D, Cherneva E, Kocić G, Petronijević Ž. XANTHINE OXIDASE INHIBITORY PROPERTIES AND IN SILICO STUDY OF THREE N-(α-BROMOACYL)-α-AMINO ESTERS. ACTA MEDICA MEDIANAE 2016. [DOI: 10.5633/amm.2016.0402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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29
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Pelay-Gimeno M, Albericio F, Tulla-Puche J. Synthesis of complex head-to-side-chain cyclodepsipeptides. Nat Protoc 2016; 11:1924-1947. [DOI: 10.1038/nprot.2016.116] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Corbi-Verge C, Garton M, Nim S, Kim PM. Strategies to Develop Inhibitors of Motif-Mediated Protein-Protein Interactions as Drug Leads. Annu Rev Pharmacol Toxicol 2016; 57:39-60. [PMID: 27618737 DOI: 10.1146/annurev-pharmtox-010716-104805] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Protein-protein interactions are fundamental for virtually all functions of the cell. A large fraction of these interactions involve short peptide motifs, and there has been increased interest in targeting them using peptide-based therapeutics. Peptides benefit from being specific, relatively safe, and easy to produce. They are also easy to modify using chemical synthesis and molecular biology techniques. However, significant challenges remain regarding the use of peptides as therapeutic agents. Identification of peptide motifs is difficult, and peptides typically display low cell permeability and sensitivity to enzymatic degradation. In this review, we outline the principal high-throughput methodologies for motif discovery and describe current methods for overcoming pharmacokinetic and bioavailability limitations.
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Affiliation(s)
- Carles Corbi-Verge
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada; , , ,
| | - Michael Garton
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada; , , ,
| | - Satra Nim
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada; , , ,
| | - Philip M Kim
- Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada; , , , .,Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario M5S 3E1, Canada
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31
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Abstract
This paper elucidates the teixobactin pharmacophore by comparing the arginine analogue of teixobactin Arg10-teixobactin to seven homologues with varying structure and stereochemistry. The roles of the guanidinium group at position 10, the stereochemistry of the macrolactone ring, and the "tail" comprising residues 1-5 are investigated. The guanidinium group is not necessary for activity; Lys10-teixobactin is more active than Arg10-teixobactin against Gram-positive bacteria in minimum inhibitory concentration (MIC) assays. The relative stereochemistry of the macrolactone ring is important. Diastereomer l-Thr8,Arg10-teixobactin is inactive, and diastereomer d-allo-Ile11,Arg10-teixobactin is less active. The macrolactone ring is critical; seco-Arg10-teixobactin is inactive. The absolute stereochemistry is not important; the enantiomer ent-Arg10-teixobactin is comparable in activity. The hydrophobic N-terminal tail is important. Truncation of residues 1-5 results in loss of activity, and replacement of residues 1-5 with a dodecanoyl group partially restores activity. These findings pave the way for developing simpler homologues of teixobactin with enhanced pharmacological properties.
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Affiliation(s)
- Hyunjun Yang
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Kevin H. Chen
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - James S. Nowick
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
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32
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Sable GA, Park J, Lim SJ, Lim D. Solid-phase Total Synthesis of Amide Analogues of Coibamide A: Azacoibamide A andO-Desmethyl Azacoibamide A. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ganesh A. Sable
- Department of Chemistry; Sejong University; Seoul 143-747 Republic of Korea
| | - Jaekwan Park
- Department of Chemistry; Sejong University; Seoul 143-747 Republic of Korea
| | - Soo-Jeong Lim
- Department of Bioscience and Biotechnology; Sejong University; Seoul 143-747 Republic of Korea
| | - Dongyeol Lim
- Department of Chemistry; Sejong University; Seoul 143-747 Republic of Korea
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33
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de la Torre AF, Rivera DG, Concepción O, Echemendia R, Correa AG, Paixão MW. Multicomponent Synthesis of Cyclic Depsipeptide Mimics by Ugi Reaction Including Cyclic Hemiacetals Derived from Asymmetric Organocatalysis. J Org Chem 2016; 81:803-9. [PMID: 26720907 DOI: 10.1021/acs.joc.5b02158] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The synthesis of novel cyclic depsipeptide mimics by means of an organocatalytic conjugate addition, leading to chiral cyclic hemiacetals, followed by a multicomponent reaction with α-amino acids and isocyanides, is described. The initial organocatalytic step is employed for the asymmetric derivatization of α,β-unsaturated aldehydes to 4,5-disubstituted 2-hydroxytetrahydropyrans, which are next used as chiral bifunctional substrates on the Ugi five-center three-component reaction, giving rise to nine-membered-ring lactones. This sequential approach proved to be suitable for the rapid generation of molecular complexity through the combination of aliphatic, dipeptidic, glucosidic, and lipidic isocyanides with several amino acids, thus giving access to amido-, glyco-, and lipo-depsipeptide scaffolds featuring natural product-like structures.
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Affiliation(s)
- Alexander F de la Torre
- Departamento de Química, Universidade Federal de São Carlos , São Carlos, SP, 13565-905, Brazil
| | - Daniel G Rivera
- Departamento de Química, Universidade Federal de São Carlos , São Carlos, SP, 13565-905, Brazil.,Center for Natural Products Research, Faculty of Chemistry, University of Havana , Zapata y G, 10400, La Habana, Cuba
| | - Odette Concepción
- Center for Natural Products Research, Faculty of Chemistry, University of Havana , Zapata y G, 10400, La Habana, Cuba
| | - Radell Echemendia
- Departamento de Química, Universidade Federal de São Carlos , São Carlos, SP, 13565-905, Brazil.,Center for Natural Products Research, Faculty of Chemistry, University of Havana , Zapata y G, 10400, La Habana, Cuba
| | - Arlene G Correa
- Departamento de Química, Universidade Federal de São Carlos , São Carlos, SP, 13565-905, Brazil
| | - Márcio W Paixão
- Departamento de Química, Universidade Federal de São Carlos , São Carlos, SP, 13565-905, Brazil
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34
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Espinosa M, García-Ortiz A, Blay G, Cardona L, Muñoz MC, Pedro JR. E,Z-Stereodivergent synthesis of N-tosyl α,β-dehydroamino esters via a Mukaiyama–Michael addition. RSC Adv 2016. [DOI: 10.1039/c5ra27354d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
E or Z dehydroamino esters are stereoselectively obtained from a same set of reactants depending on the reaction conditions.
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Affiliation(s)
- Miguel Espinosa
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- E-46100 Burjassot
- Spain
| | - Andrea García-Ortiz
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- E-46100 Burjassot
- Spain
| | - Gonzalo Blay
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- E-46100 Burjassot
- Spain
| | - Luz Cardona
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- E-46100 Burjassot
- Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada
- Universitat Politècnica de València
- 46022 València
- Spain
| | - José R. Pedro
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- E-46100 Burjassot
- Spain
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35
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Vukelić-Nikolić M, Kolarević A, Tomović K, Yancheva D, Cherneva E, Najman S, Šmelcerović A. Effects on MC3T3-E1 Cells and In Silico Toxicological Study of Two 6-(Propan-2-yl)-4-methyl-morpholine-2,5-diones. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Recently, we found that two cyclodidepsipeptides, 3,6-di-(propan-2-yl)-4-methyl-morpholine-2,5-dione (1) and 3-(2-methylpropyl)-6-(propan-2-yl)-4-methyl-morpholine-2,5-dione (2), are excellent inhibitors of xanthine oxidase. In order to obtain more information about the toxicological potential of compounds 1 and 2 on bone cells, the current study was designed to evaluate the effect of these compounds on viability and proliferation of MC3T3-E1 cells. Compound 1 showed neither cytotoxic nor stimulatory effect on cell viability, while compound 2 showed a slight stimulatory effect on cell viability. Both studied compounds showed slight stimulatory effects on proliferation of MC3T3-E1 cells, in a dose dependent manner. Additionally, an in silico toxicological study of compounds 1 and 2 was performed, and the results indicate that they have a good probability of safe biological intake.
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Affiliation(s)
- Marija Vukelić-Nikolić
- Institute of Biology and Human Genetics, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Ana Kolarević
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Katarina Tomović
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Denitsa Yancheva
- Laboratory of Structural Organic Analysis, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., build. 9, 1113 Sofia, Bulgaria
| | - Emiliya Cherneva
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Stevo Najman
- Institute of Biology and Human Genetics, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Andrija Šmelcerović
- Department of Pharmacy, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
- Department of Chemistry, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000 Nis, Serbia
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36
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Lozano-Tovar MD, Garrido-Jurado I, Lafont F, Quesada-Moraga E. Insecticidal Activity of a Destruxin-Containing Extract of Metarhizium brunneum Against Ceratitis capitata (Diptera: Tephritidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2015; 108:462-472. [PMID: 26470157 DOI: 10.1093/jee/tov041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 01/21/2015] [Indexed: 06/05/2023]
Abstract
Tephritid fruit flies are major pests that limit fruit production around the world; they cause important damages, increasing directly and indirectly annual costs, and their management is predominately based on the use of chemical insecticides. This research investigated the insecticidal activity of the crude extract obtained of Metarhizium brunneum Petch EAMb 09/01-Su strain and its capacity to secrete secondary metabolites including destruxins (dtx). Dtx A and A2 had insecticidal activity against Ceratitis capitata (Wiedemann) when administered per os. The crude extract of seven Metarhizium and one Beauveria isolates were evaluated per os against medfly adults. The crude extracts of the isolate EAMb 09/01-Su resulted in mortality ranging between 95 and 100% at 48 h. The high-pressure liquid chromatography profile showed two active peaks (F5B and F6 subfractions) related with dtx A2 and dtx A, which caused 70 and 100% mortality on C. capitata at 48 h postfeeding, respectively. The LC50 was 104.92 ppm of dtx A, contained in the F6 subfraction, and the LT50 was 4.16 h at a concentration of 400 ppm of dtx A contained in the F6 subfraction. Moreover, the average survival time of adults exposed to this subfraction was 12.6 h with only 1 h of exposure. The insecticide metabolites of the F6 subfraction of the EAMb 09/01-Su isolate retained >90% of its insecticidal activity after exposure to 60°C for 2 h and 120°C for 20 min. These results highlight the potential of this strain as a source of new insecticidal compounds of natural origin for fruit fly control.
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Affiliation(s)
- M D Lozano-Tovar
- Laboratory of Agricultural Entomology, Department of Agricultural and Forestry Sciences, ETSIAM, University of Cordoba, Campus de Rabanales. Edificio C4 Celestino Mutis. 14071 Cordoba, Spain
| | - I Garrido-Jurado
- Laboratory of Agricultural Entomology, Department of Agricultural and Forestry Sciences, ETSIAM, University of Cordoba, Campus de Rabanales. Edificio C4 Celestino Mutis. 14071 Cordoba, Spain
| | - F Lafont
- Mass Spectrometry & Chromatography Lab-SCAI, University of Cordoba, Campus de Rabanales. Edificio Ramon y Cajal. 14071 Córdoba, Spain
| | - E Quesada-Moraga
- Laboratory of Agricultural Entomology, Department of Agricultural and Forestry Sciences, ETSIAM, University of Cordoba, Campus de Rabanales. Edificio C4 Celestino Mutis. 14071 Cordoba, Spain.
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37
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Liu J, Wang B, Li H, Xie Y, Li Q, Qin X, Zhang X, Ju J. Biosynthesis of the anti-infective marformycins featuring pre-NRPS assembly line N-formylation and O-methylation and post-assembly line C-hydroxylation chemistries. Org Lett 2015; 17:1509-12. [PMID: 25746634 DOI: 10.1021/acs.orglett.5b00389] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The biosynthetic gene cluster governing production of anti-infective marformycins was identified from deep sea-derived Streptomyces drozdowiczii SCSIO 10141. The putative mfn gene cluster (45 kb, 20 orfs) was found to encode six NRPSs and related proteins for cyclodepsipeptide core construction (mfnCDEFKL), a methionyl-tRNA formyltransferase (mfnA), a SAM-dependent methyltransferase (mfnG), and a cytochrome P450 monooxygenase for piperazic acid moiety hydroxylation (mfnN); notably, only MfnN uses an intact cyclodepsipeptide intermediate as its substrate.
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Affiliation(s)
- Jing Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Bo Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Hongzhi Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Yunchang Xie
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Qinglian Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Xiangjing Qin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Xing Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
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38
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Skinnider MA, Johnston CW, Zvanych R, Magarvey NA. Automated Identification of Depsipeptide Natural Products by an Informatic Search Algorithm. Chembiochem 2014; 16:223-7. [DOI: 10.1002/cbic.201402434] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 11/06/2022]
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39
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Zhou X, Huang H, Li J, Song Y, Jiang R, Liu J, Zhang S, Hua Y, Ju J. New anti-infective cycloheptadepsipeptide congeners and absolute stereochemistry from the deep sea-derived Streptomyces drozdowiczii SCSIO 10141. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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41
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Siodłak D, Macedowska-Capiga A, Broda MA, Kozioł AE, Lis T. The cis-trans isomerization of N-methyl-α,β-dehydroamino acids. Biopolymers 2014. [PMID: 23203691 DOI: 10.1002/bip.22082] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Dehydroamino acids with the methylated N-terminal peptide group occur in natural small cyclic peptides. The structural analysis was used to investigate the cis-trans isomerization of the N-terminal tertiary amide group of diamides: Ac-(Z)-Δ(Me)Abu-NHMe (1), Ac-(Z)-Δ(Me)Phe-NHMe (2), Ac-(E)-Δ(Me)Phe-NHMe (3), Ac-Δ(Me)Ala-NHMe (4), and Ac-(Me)Ala-NHMe (5). The compounds were analyzed in the solid state by an X-ray crystallography (1-3), and in the solution by FTIR (MeCN and CHCl(3) ) and NMR (DMSO-d6 and CDCl(3) ) methods (1-5). In the solid state, the studied compounds adopt the cis configuration of N-terminal amide. In solution, this configuration also prevails for the dehydroamino acids 1-4, in contrast to the saturated analog 5. The results indicate that N-methyldehydroamino acids present a promising tool to induce the cis configuration of the amide bond.
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Affiliation(s)
- Dawid Siodłak
- Faculty of Chemistry, University of Opole, Oleska 48, Opole 45-052, Poland.
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42
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Smelcerovic A, Dzodic P, Pavlovic V, Cherneva E, Yancheva D. Cyclodidepsipeptides with a promising scaffold in medicinal chemistry. Amino Acids 2014; 46:825-40. [PMID: 24414220 DOI: 10.1007/s00726-014-1666-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 01/03/2014] [Indexed: 11/28/2022]
Abstract
Among the large family of cyclodepsipeptides, the simplest members are the cyclodidepsipeptides which have an ester group and an amide group in the same six-membered ring. To point out the pharmacological potential of this class of compounds, the present article reviews structure, isolation, synthesis and biological properties of the known cyclodidepsipeptides. Synthesis of cyclodidepsipeptides is achieved by two general approaches--by initial formation of the amide bond, or initial formation of the ester bond; and subsequent intermolecular cyclization to cyclodidepsipeptide structure. It is closely related to the condensation and ring-closure strategies applied in the preparation of the larger members of the cyclodepsipeptide family. However, due to synthesis of the smaller heretocycles it allows for the use of more versatile building blocks. There are data on antimicrobial, antioxidant and immunomodulatory activities of cyclodidepsipeptides as well as their inhibitory activities toward α-glucosidase, acyl-CoA:cholesterol acyltransferase, xanthine oxidase and platelet aggregation. Because we have recently found that two 6-(propan-2-yl)-4-methyl-morpholine-2,5-diones, as novel non-purine xanthine oxidase inhibitors, may give promise to be used in the treatment of gout, in this review we have included a study of molecular interactions of the selected cyclodidepsipeptides with xanthine oxidase using idTarget web server. Cyclodidepsipeptides showed promising pharmacological activities and meet all criteria for good solubility and permeability. However, further research of their medical application is necessary. In addition to this, the diversity of natural cyclodidepsipeptides, simplicity for synthesis and convenience for rational drug design indicate the cyclodidepsipeptide as promising scaffold in medicinal chemistry.
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Affiliation(s)
- Andrija Smelcerovic
- Department of Chemistry, Faculty of Medicine, University of Nis, Bulevar Dr Zorana Djindjica 81, 18000, Nis, Serbia,
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43
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Avan I, Hall CD, Katritzky AR. Peptidomimetics via modifications of amino acids and peptide bonds. Chem Soc Rev 2014; 43:3575-94. [DOI: 10.1039/c3cs60384a] [Citation(s) in RCA: 183] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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44
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Spengler J, Albericio F. Synthesis of All the Diastereomers of 2-Amino-3-hydroxy-4,5-dimethylhexanoic Acid. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Siodłak D, Bujak M, Staś M. Intra- and intermolecular forces dependent main chain conformations of esters of α,β-dehydroamino acids. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.04.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Rochon K, Proteau-Gagné A, Bourassa P, Nadon JF, Côté J, Bournival V, Gobeil F, Guérin B, Dory YL, Gendron L. Preparation and evaluation at the delta opioid receptor of a series of linear leu-enkephalin analogues obtained by systematic replacement of the amides. ACS Chem Neurosci 2013; 4:1204-16. [PMID: 23650868 PMCID: PMC3750687 DOI: 10.1021/cn4000583] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 05/07/2013] [Indexed: 12/16/2022] Open
Abstract
Leu-enkephalin analogues, in which the amide bonds were sequentially and systematically replaced either by ester or N-methyl amide bonds, were prepared using classical organic chemistry as well as solid phase peptide synthesis (SPPS). The peptidomimetics were characterized using competition binding, ERK1/2 phosphorylation, receptor internalization, and contractility assays to evaluate their pharmacological profile over the delta opioid receptor (DOPr). The lipophilicity (LogD7.4) and plasma stability of the active analogues were also measured. Our results revealed that the last amide bond can be successfully replaced by either an ester or an N-methyl amide bond without significantly decreasing the biological activity of the corresponding analogues when compared to Leu-enkephalin. The peptidomimetics with an N-methyl amide function between residues Phe and Leu were found to be more lipophilic and more stable than Leu-enkephalin. Findings from the present study further revealed that the hydrogen-bond donor properties of the fourth amide of Leu-enkephalin are not important for its biological activity on DOPr. Our results show that the systematic replacement of amide bonds by isosteric functions represents an efficient way to design and synthesize novel peptide analogues with enhanced stability. Our findings further suggest that such a strategy can also be useful to study the biological roles of amide bonds.
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Affiliation(s)
- Kristina Rochon
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Arnaud Proteau-Gagné
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Philippe Bourassa
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Jean-François Nadon
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Jérome Côté
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Véronique Bournival
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Fernand Gobeil
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Brigitte Guérin
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Yves L. Dory
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
| | - Louis Gendron
- Département de Physiologie
et Biophysique, Laboratoire de Synthèse Supramoléculaire, Département
de Chimie, Département de pharmacologie, and Département de Médecine
Nucléaire et Radiobiologie, Institut de Pharmacologie, Université de Sherbrooke, 3001, 12 Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada
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47
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de Bekker C, Smith PB, Patterson AD, Hughes DP. Metabolomics reveals the heterogeneous secretome of two entomopathogenic fungi to ex vivo cultured insect tissues. PLoS One 2013; 8:e70609. [PMID: 23940603 PMCID: PMC3734240 DOI: 10.1371/journal.pone.0070609] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/19/2013] [Indexed: 12/23/2022] Open
Abstract
Fungal entomopathogens rely on cellular heterogeneity during the different stages of insect host infection. Their pathogenicity is exhibited through the secretion of secondary metabolites, which implies that the infection life history of this group of environmentally important fungi can be revealed using metabolomics. Here metabolomic analysis in combination with ex vivo insect tissue culturing shows that two generalist isolates of the genus Metarhizium and Beauveria, commonly used as biological pesticides, employ significantly different arrays of secondary metabolites during infectious and saprophytic growth. It also reveals that both fungi exhibit tissue specific strategies by a distinguishable metabolite secretion on the insect tissues tested in this study. In addition to showing the important heterogeneous nature of these two entomopathogens, this study also resulted in the discovery of several novel destruxins and beauverolides that have not been described before, most likely because previous surveys did not use insect tissues as a culturing system. While Beauveria secreted these cyclic depsipeptides when encountering live insect tissues, Metarhizium employed them primarily on dead tissue. This implies that, while these fungi employ comparable strategies when it comes to entomopathogenesis, there are most certainly significant differences at the molecular level that deserve to be studied.
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Affiliation(s)
- Charissa de Bekker
- Department of Entomology and Department of Biology, Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, State College, Pennsylvania, USA.
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48
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Crystal structures and antimicrobial activities of copper(II) complexes of fluorine-containing thioureido ligands. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.06.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Stolze SC, Meltzer M, Ehrmann M, Kaiser M. Ahp cyclodepsipeptides: the impact of the Ahp residue on the "canonical inhibition" of S1 serine proteases. Chembiochem 2013; 14:1301-8. [PMID: 23794257 DOI: 10.1002/cbic.201300180] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Indexed: 12/21/2022]
Abstract
S1 serine proteases are by far the largest and most diverse family of proteases encoded in the human genome. Although recent decades have seen an enormous increase in our knowledge, the biological functions of most of these proteases remain to be elucidated. Chemical inhibitors have proven to be versatile tools for studying the functions of proteases, but this approach is hampered by the limited availability of inhibitor scaffold structures with the potential to allow rapid discovery of selective, noncovalent small-molecule protease inhibitors. The natural product class of Ahp cyclodepsipeptides is an unusual class of small-molecule canonical inhibitors; the incorporation of protease cleavage sequences into their molecular scaffolds enables the design of specific small-molecule inhibitors that simultaneously target the S and S' subsites of the protease through noncovalent mechanisms. Their synthesis is tedious, however, so in this study we have investigated the relevance of the Ahp moiety for achieving potent inhibition. We found that although the Ahp residue plays an important role in inhibition potency, appropriate replacement with β-hydroxy amino acids results in structurally less complex derivatives that inhibit serine proteases in the low micromolar range.
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Affiliation(s)
- Sara C Stolze
- Chemical Biology, Zentrum für Medizinische Biotechnologie, Fakultät für Biologie, Universität Duisburg-Essen, Universitätsstrasse 2, 45117 Essen, Germany
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50
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Pelay-Gimeno M, Tulla-Puche J, Albericio F. "Head-to-side-chain" cyclodepsipeptides of marine origin. Mar Drugs 2013; 11:1693-717. [PMID: 23697952 PMCID: PMC3707169 DOI: 10.3390/md11051693] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 04/07/2013] [Accepted: 04/23/2013] [Indexed: 12/25/2022] Open
Abstract
Since the late 1980s, a large number of depsipeptides that contain a new topography, referred to as "head-to-side-chain" cyclodepsipeptides, have been isolated and characterized. These peptides present a unique structural arrangement that comprises a macrocyclic region closed through an ester bond between the C-terminus and a β-hydroxyl group, and terminated with a polyketide moiety or a more simple branched aliphatic acid. This structural pattern, the presence of unique and complex residues, and relevant bioactivity are the main features shared by all the members of this new class of depsipeptides, which are reviewed herein.
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Affiliation(s)
- Marta Pelay-Gimeno
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona 08028, Spain
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Baldiri Reixac 10, Barcelona 08028, Spain
| | - Judit Tulla-Puche
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona 08028, Spain
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Baldiri Reixac 10, Barcelona 08028, Spain
| | - Fernando Albericio
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona 08028, Spain
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Baldiri Reixac 10, Barcelona 08028, Spain
- Department of Organic Chemistry, University of Barcelona, Martí i Franqués 1-11, Barcelona 08028, Spain
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
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