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El Battioui K, Chakraborty S, Wacha A, Molnár D, Quemé-Peña M, Szigyártó IC, Szabó CL, Bodor A, Horváti K, Gyulai G, Bősze S, Mihály J, Jezsó B, Románszki L, Tóth J, Varga Z, Mándity I, Juhász T, Beke-Somfai T. In situ captured antibacterial action of membrane-incising peptide lamellae. Nat Commun 2024; 15:3424. [PMID: 38654023 DOI: 10.1038/s41467-024-47708-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/09/2024] [Indexed: 04/25/2024] Open
Abstract
Developing unique mechanisms of action are essential to combat the growing issue of antimicrobial resistance. Supramolecular assemblies combining the improved biostability of non-natural compounds with the complex membrane-attacking mechanisms of natural peptides are promising alternatives to conventional antibiotics. However, for such compounds the direct visual insight on antibacterial action is still lacking. Here we employ a design strategy focusing on an inducible assembly mechanism and utilized electron microscopy (EM) to follow the formation of supramolecular structures of lysine-rich heterochiral β3-peptides, termed lamellin-2K and lamellin-3K, triggered by bacterial cell surface lipopolysaccharides. Combined molecular dynamics simulations, EM and bacterial assays confirmed that the phosphate-induced conformational change on these lamellins led to the formation of striped lamellae capable of incising the cell envelope of Gram-negative bacteria thereby exerting antibacterial activity. Our findings also provide a mechanistic link for membrane-targeting agents depicting the antibiotic mechanism derived from the in-situ formation of active supramolecules.
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Affiliation(s)
- Kamal El Battioui
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Hevesy György Ph.D. School of Chemistry, Eötvös Loránd University, Budapest, H-1117, Hungary
| | - Sohini Chakraborty
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - András Wacha
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - Dániel Molnár
- Institute of Molecular Life Sciences, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Doctoral School of Biology and Institute of Biology, Eötvös Loránd University, Budapest, H-1117, Hungary
| | - Mayra Quemé-Peña
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Hevesy György Ph.D. School of Chemistry, Eötvös Loránd University, Budapest, H-1117, Hungary
| | - Imola Cs Szigyártó
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - Csenge Lilla Szabó
- Hevesy György Ph.D. School of Chemistry, Eötvös Loránd University, Budapest, H-1117, Hungary
- ELTE Eötvös Loránd University, Institute of Chemistry, Analytical and BioNMR Laboratory, Budapest, H-1117, Hungary
| | - Andrea Bodor
- ELTE Eötvös Loránd University, Institute of Chemistry, Analytical and BioNMR Laboratory, Budapest, H-1117, Hungary
| | - Kata Horváti
- MTA-HUN-REN TTK "Momentum" Peptide-Based Vaccines Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - Gergő Gyulai
- MTA-HUN-REN TTK "Momentum" Peptide-Based Vaccines Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- ELTE Eötvös Loránd University, Institute of Chemistry, Laboratory of Interfaces and Nanostructures, Budapest, H-1117, Hungary
| | - Szilvia Bősze
- HUN-REN ELTE Research Group of Peptide Chemistry, Hungarian Research Network, Eötvös Loránd University, Budapest, Hungary
| | - Judith Mihály
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - Bálint Jezsó
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- ELTE-MTA "Momentum" Motor Enzymology Research Group, Department of Biochemistry, Eötvös Loránd University, Budapest, Hungary
| | - Loránd Románszki
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - Judit Tóth
- Institute of Molecular Life Sciences, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Department of Applied Biotechnology and Food Sciences, Budapest University of Technology and Economics, Budapest, H-1111, Hungary
| | - Zoltán Varga
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, 1111, Hungary
| | - István Mándity
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Department of Organic Chemistry, Faculty of Pharmacy, Semmelweis University, Budapest, H-1092, Hungary
| | - Tünde Juhász
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
| | - Tamás Beke-Somfai
- Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary.
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Faragó T, Remete AM, Szatmári I, Ambrus R, Palkó M. The synthesis of pharmacologically important oxindoles via the asymmetric aldol reaction of isatin and the investigation of the organocatalytic activity of new alicyclic β-amino acid derivatives. RSC Adv 2023; 13:19356-19365. [PMID: 37377868 PMCID: PMC10292165 DOI: 10.1039/d3ra03528j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
This work involves the synthesis and subsequent development of a number of novel organocatalysts generated from β-amino acids bearing diendo and diexo norbornene skeletons to improve their catalytic characteristics. The aldol reaction between isatin and acetone selected as the model reaction, was used to test and study enantioselectivities. The potential impact on enantioselectivity control regarding enantiomeric excess (ee%) was probed by varying the reaction parameters, such as additive, solvent, catalyst loading, temperature and substrate range. The corresponding 3-hydroxy-3-alkyl-2-oxindole derivetives were produced by organocatalyst 7 with good enantioselectivity up to 57% ee in the presence of LiOH. Substrate screening was used to investigate a number of substituted isatins with excellent findings up to 99% ee. Another aspect of this effort involved employing high-speed ball mill apparatus to conduct a mechanochemical study to make this model reaction more environmentally benign and sustainable.
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Affiliation(s)
- Tünde Faragó
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 Szeged H-6720 Hungary
| | - Attila M Remete
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 Szeged H-6720 Hungary
| | - István Szatmári
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 Szeged H-6720 Hungary
- Stereochemistry Research Group, Eötvös Loránd Research Network, University of Szeged Eötvös u. 6 H-6720 Szeged Hungary
| | - Rita Ambrus
- Institute of Pharmaceutical Technology and Regulatory Affairs Faculty of Pharmacy, University of Szeged Eötvös utca 6 Szeged H-6720 Hungary
| | - Márta Palkó
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 Szeged H-6720 Hungary
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Masui H, Fuse S. Recent Advances in the Solid- and Solution-Phase Synthesis of Peptides and Proteins Using Microflow Technology. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hisashi Masui
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Shinichiro Fuse
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Alfano AI, Lange H, Brindisi M. Amide Bonds Meet Flow Chemistry: A Journey into Methodologies and Sustainable Evolution. CHEMSUSCHEM 2022; 15:e202102708. [PMID: 35015338 PMCID: PMC9304223 DOI: 10.1002/cssc.202102708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Indexed: 06/03/2023]
Abstract
Formation of amide bonds is of immanent importance in organic and synthetic medicinal chemistry. Its presence in "traditional" small-molecule active pharmaceutical ingredients, in linear or cyclic oligo- and polypeptidic actives, including pseudopeptides, has led to the development of dedicated synthetic approaches for the formation of amide bonds starting from, if necessary, suitably protected amino acids. While the use of solid supported reagents is common in traditional peptide synthesis, similar approaches targeting amide bond formation in continuous-flow mode took off more significantly, after a first publication in 2006, only a couple of years ago. Most efforts rely upon the transition of traditional approaches in flow mode, or the combination of solid-phase peptide synthesis principles with flow chemistry, and advantages are mainly seen in improving space-time yields. This Review summarizes and compares the various approaches in terms of basic amide formation, peptide synthesis, and pseudopeptide generation, describing the technological approaches and the advantages that were generated by the specific flow approaches. A final discussion highlights potential future needs and perspectives in terms of greener and more sustainable syntheses.
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Affiliation(s)
- Antonella Ilenia Alfano
- SPOTS-Lab – Sustainable Pharmaceutical and Organic Technology and Synthesis LaboratoryUniversity of Naples ‘Federico II', Department of PharmacyVia Domenico Montesano 4980131NaplesItaly
| | - Heiko Lange
- University of Milano-Bicocca Department of Earth and Environmental SciencesPiazza della Scienza 120126MilanItaly
| | - Margherita Brindisi
- SPOTS-Lab – Sustainable Pharmaceutical and Organic Technology and Synthesis LaboratoryUniversity of Naples ‘Federico II', Department of PharmacyVia Domenico Montesano 4980131NaplesItaly
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Ludmerczki R, Malfatti L, Stagi L, Meloni M, Carbonaro CM, Casula MF, Bogdán D, Mura S, Mándity IM, Innocenzi P. Polymerization-Driven Photoluminescence in Alkanolamine-Based C-Dots. Chemistry 2021; 27:2543-2550. [PMID: 33196126 DOI: 10.1002/chem.202004465] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/03/2020] [Indexed: 01/06/2023]
Abstract
Carbonized polymer dots (CPDs), a peculiar type of carbon dots, show extremely high quantum yields, making them very attractive nanostructures for application in optics and biophotonics. The origin of the strong photoluminescence of CPDs resides in a complicated interplay of several radiative mechanisms. To understand the correlation between CPD processing and properties, the early stage formation of carbonized polymer dots has been studied. In the synthesis, citric acid monohydrate and 2-amino-2-(hydroxymethyl)propane-1,3-diol have been thermally degraded at 180 °C. The use of an oil bath instead of a more traditional hydrothermal reactor has allowed the CPD properties to be monitored at different reactions times. Transmission electron microscopy, time-resolved photoluminescence, nuclear magnetic resonance, infrared, and Raman spectroscopy have revealed the formation of polymeric species with amide and ester bonds. Quantum chemistry calculations have been employed to investigate the origin of CPD electronic transitions. At short reaction times, amorphous C-dots with 80 % quantum yield, have been obtained.
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Affiliation(s)
- Robert Ludmerczki
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Luca Malfatti
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Luigi Stagi
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Manuela Meloni
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Carlo Maria Carbonaro
- Department of Physics, University of Cagliari, sp 8, km 0.700, 09042, Monserrato, Italy
| | - Maria Francesca Casula
- DIMCM-Department of Mechanical, Chemical, and Materials Engineering, INSTM, University of Cagliari, Via Marengo 2, 09123, Cagliari, Italy
| | - Dóra Bogdán
- Department of Organic Chemistry, Semmelweis University, Hőgyes Endre St. 7, 1092, Budapest, Hungary.,MTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok krt. 2, 1117, Budapest, Hungary
| | - Stefania Mura
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - István M Mándity
- Department of Organic Chemistry, Semmelweis University, Hőgyes Endre St. 7, 1092, Budapest, Hungary.,MTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok krt. 2, 1117, Budapest, Hungary
| | - Plinio Innocenzi
- Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
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Hernández D, Carro C, Boto A. "Doubly Customizable" Unit for the Generation of Structural Diversity: From Pure Enantiomeric Amines to Peptide Derivatives. J Org Chem 2021; 86:2796-2809. [PMID: 33433228 DOI: 10.1021/acs.joc.0c02751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Readily available, low-cost 4R-hydroxy-l-proline (Hyp) is introduced as a "doubly customizable" unit for the generation of libraries of structurally diverse compounds. Hyp can be cleaved at two points, followed by the introduction of new functionalities. In the first cycle, the removal and replacement of the carboxylic group are carried out, followed (second cycle) by the scission of the 4,5-position and manipulation of the resulting chains. In this way, three new chains are generated and can be transformed independently to afford a diversity of products with tailored substituents, such as β-amino aldehydes, diamines, β-amino acid derivatives, including N-alkylated ones, or modified peptides. Many of these products are high-profit compounds but, in spite of their commercial value, are still scarce. Moreover, the process takes place with stereochemical control, and either pure R or S isomers can be obtained with small variations of the synthetic route.
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Affiliation(s)
- Dacil Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
| | - Carmen Carro
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain.,BIOSIGMA, Antonio Domínguez Alfonso 16, 38003 Santa Cruz de Tenerife, Tenerife, Spain
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
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Zheng C, Liu C, Zhang X. The self-assembly of supramolecular helical chains in crystallized compounds of methionine with inorganic/organic acids. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Zheng C, Bi X, Ma J, Zhao Y, Gu C. The self organizing of supramolecular helical chains in crystallized eighteen compounds of l-alanine with inorganic/organic acids. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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The achiral β-alanine self organizes into supramolecular helical chains in crystallized achiral β-alaninium inorganic/organic acid compounds. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Diastereoselective Opening of Bridged Anhydrides by Amidoximes Providing Access to 1,2,4-Oxadiazole/Norborna(e)ne Hybrids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900843] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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