1
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Nagao M, Hoshino Y, Miura Y. Quantification of thermodynamic effects of carbohydrate multivalency on avidity using synthetic discrete glycooligomers. Chem Commun (Camb) 2024; 60:7021-7024. [PMID: 38895769 DOI: 10.1039/d4cc02409e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
A quantitative understanding of thermodynamic effects of avidity in biomolecular interactions is important. Herein, we synthesized discrete glycooligomers and evaluated their interactions with a model protein using isothermal titration calorimetry. The dimeric glycooligomer exhibited higher binding constants compared to the glycomonomer, attributed to the reduced conformational entropy loss through local presentation of multiple carbohydrate units. Conversely, divalent glycoligands with polyethylene glycol linkers, aiming for multivalent binding, showed enhanced interactions through increased enthalpy. These findings emphasize the importance of distinguishing between the "local avidity" and the "multipoint avidity".
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Affiliation(s)
- Masanori Nagao
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Yu Hoshino
- Department of Applied Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiko Miura
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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2
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Ji W, Hu Y, Wang X, Zhao J, He Y, Zhu Z, Rao J. Biomimetic protein structural transitions regulate activation and inhibition of the broad-spectrum bactericidal activity of cationic nanoparticles. Acta Biomater 2024; 182:156-170. [PMID: 38750919 DOI: 10.1016/j.actbio.2024.05.022] [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: 02/13/2024] [Revised: 05/01/2024] [Accepted: 05/09/2024] [Indexed: 06/02/2024]
Abstract
The development of cationic polymers as alternative materials to antibiotics necessitates addressing the challenge of balancing their antimicrobial activity and toxicity. Here we propose a precise switching strategy inspired by biomimetic voltage-gated ion channels, enabling controlled activation and inhibition of cationic antimicrobial functions through protein conformational transitions in diverse physiological environments. Following thermodynamic studies on the specific recognition between mannose end groups on polycations and concanavalin A (ConA), we synthesized a type of ConA-polycation nanoparticle. The nanoparticle was inhibited under neutral conditions, with cationic moieties shielded by ConA's β-sheet. This shielding suppresses their antimicrobial activity, thereby ensuring satisfactory biocompatibility. In mildly acidic environments, however, the transition of a portion of ConA to an α-helix conformation exposed cations at the particle periphery, activating antibacterial functionality. Compared to inhibited nanoparticles, those in the activated state exhibited a 32-256 times reduction in the minimum bactericidal concentration against bacteria and fungi (2-16 µg/mL). In a murine acute pulmonary infection model, intravenous administration of inhibited nanoparticles effectively reduced bacterial counts by 4-log within 12 h. The biomimetic design, regulating cationic antimicrobial functionality through the alteration in protein secondary structure, significantly retards bacterial resistance development, holding great promise for intelligent antimicrobial materials. STATEMENT OF SIGNIFICANCE: Cationic antimicrobial polymers exhibit advantages distinct from antibiotics due to their lower propensity for resistance development. However, the presence of cationic moieties also poses a threat to healthy cells and tissues, significantly constraining their potential for clinical applications. To address this challenge, we propose a biomimetic strategy that mimics voltage-gated ion channels to activate the antimicrobial functionality of cations selectively in bacterial environments through the conformational transitions of proteins between β-sheets and α-helices. In healthy tissues, the antimicrobial functionality is inhibited, ensuring satisfactory biocompatibility. Antimicrobial cationic materials capable of intelligent switching between an activated state and an inhibited state in response to environmental changes offer an effective strategy to prevent the development of resistance and mitigate potential side effects.
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Affiliation(s)
- Wenke Ji
- Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China
| | - Yongjin Hu
- Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China
| | - Xiao Wang
- Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China
| | - Jinghua Zhao
- Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China
| | - Yan He
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China
| | - Zhiyuan Zhu
- Taizhou Research Institute, Southern University of Science and Technology, Taizhou, Zhejiang, 318001, PR China
| | - Jingyi Rao
- Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China.
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3
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Szatko M, Forysiak W, Kozub S, Andruniów T, Szweda R. Revealing the Effect of Stereocontrol on Intermolecular Interactions between Abiotic, Sequence-Defined Polyurethanes and a Ligand. ACS Biomater Sci Eng 2024; 10:3727-3738. [PMID: 38804015 PMCID: PMC11167595 DOI: 10.1021/acsbiomaterials.4c00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/26/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024]
Abstract
The development of precision polymer synthesis has facilitated access to a diverse library of abiotic structures wherein chiral monomers are positioned at specific locations within macromolecular chains. These structures are anticipated to exhibit folding characteristics similar to those of biotic macromolecules and possess comparable functionalities. However, the extensive sequence space and numerous variables make selecting a sequence with the desired function challenging. Therefore, revealing sequence-function dependencies and developing practical tools are necessary to analyze their conformations and molecular interactions. In this study, we investigate the effect of stereochemistry, which dictates the spatial location of backbone and pendant groups, on the interaction between sequence-defined oligourethanes and bisphenol A ligands. Various methods are explored to analyze the receptor-like properties of model oligomers and the ligand. The accuracy of molecular dynamics simulations and experimental techniques is assessed to uncover the impact of discrete changes in stereochemical arrangements on the structures of the resulting complexes and their binding strengths. Detailed computational investigations providing atomistic details show that the formed complexes demonstrate significant structural diversity depending on the sequence of stereocenters, thus affecting the oligomer-ligand binding strength. Among the tested techniques, the fluorescence spectroscopy data, fitted to the Stern-Volmer equation, are consistently aligned with the calculations, thus validating the developed simulation methodology. The developed methodology opens a way to engineer the structure of sequence-defined oligomers with receptor-like functionality to explore their practical applications, e.g., as sensory materials.
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Affiliation(s)
- Maksymilian Szatko
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
- Department
of Chemistry, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Weronika Forysiak
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
- Faculty
of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Sara Kozub
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
| | - Tadeusz Andruniów
- Department
of Chemistry, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Roza Szweda
- Łukasiewicz
Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wroclaw, Poland
- Center
for Advanced Technologies, Adam Mickiewicz
University, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland
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4
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Üclü S, Marschelke C, Drees F, Giesler M, Wilms D, Köhler T, Schmidt S, Synytska A, Hartmann L. Sweet Janus Particles: Multifunctional Inhibitors of Carbohydrate-Based Bacterial Adhesion. Biomacromolecules 2024; 25:2399-2407. [PMID: 38454747 DOI: 10.1021/acs.biomac.3c01333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Escherichia coli and other bacteria use adhesion receptors, such as FimH, to attach to carbohydrates on the cell surface as the first step of colonization and infection. Efficient inhibitors that block these interactions for infection treatment are multivalent carbohydrate-functionalized scaffolds. However, these multivalent systems often lead to the formation of large clusters of bacteria, which may pose problems for clearing bacteria from the infected site. Here, we present Man-containing Janus particles (JPs) decorated on one side with glycomacromolecules to target Man-specific adhesion receptors of E. coli. On the other side, poly(N-isopropylacrylamide) is attached to the particle hemisphere, providing temperature-dependent sterical shielding against binding and cluster formation. While homogeneously functionalized particles cluster with multiple bacteria to form large aggregates, glycofunctionalized JPs are able to form aggregates only with individual bacteria. The formation of large aggregates from the JP-decorated single bacteria can still be induced in a second step by increasing the temperature and making use of the collapse of the PNIPAM hemisphere. This is the first time that carbohydrate-functionalized JPs have been derived and used as inhibitors of bacterial adhesion. Furthermore, the developed JPs offer well-controlled single bacterial inhibition in combination with cluster formation upon an external stimulus, which is not achievable with conventional carbohydrate-functionalized particles.
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Affiliation(s)
- Serap Üclü
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Claudia Marschelke
- Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, Dresden 01069, Germany
| | - Felictas Drees
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
- Institute for Macromolecular Chemistry, University Freiburg, Stefan-Meier-Str. 31, Freiburg Im Breisgau 79104, Germany
| | - Markus Giesler
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Dimitri Wilms
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Thorben Köhler
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Stephan Schmidt
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
- Institute for Macromolecular Chemistry, University Freiburg, Stefan-Meier-Str. 31, Freiburg Im Breisgau 79104, Germany
| | - Alla Synytska
- Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, Dresden 01069, Germany
- Bavarian Polymer Institute, Research Group Functional Polymer Interfaces, University of Bayreuth, Ludwig-Thoma Str. 36a, Bayreuth 95447, Germany
| | - Laura Hartmann
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
- Institute for Macromolecular Chemistry, University Freiburg, Stefan-Meier-Str. 31, Freiburg Im Breisgau 79104, Germany
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5
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Lete M, Hoffmann M, Schomann N, Martínez-Castillo A, Peccati F, Konietzny PB, Delgado S, Snyder NL, Jiménez-Oses G, Abrescia NGA, Ardá A, Hartmann L, Jiménez-Barbero J. Molecular Recognition of Glycan-Bearing Glycomacromolecules Presented at Membrane Surfaces by Lectins: An NMR View. ACS OMEGA 2023; 8:16883-16895. [PMID: 37214724 PMCID: PMC10193412 DOI: 10.1021/acsomega.3c00634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/18/2023] [Indexed: 05/24/2023]
Abstract
Lectin-glycan interactions are at the heart of a multitude of biological events. Glycans are usually presented in a multivalent manner on the cell surface as part of the so-called glycocalyx, where they interact with other entities. This multivalent presentation allows us to overcome the typical low affinities found for individual glycan-lectin interactions. Indeed, the presentation of glycans may drastically impact their binding by lectins, highly affecting the corresponding binding affinity and even selectivity. In this context, we herein present the study of the interaction of a variety of homo- and heteromultivalent lactose-functionalized glycomacromolecules and their lipid conjugates with two human galectins. We have employed as ligands the glycomacromolecules, as well as liposomes decorated with those structures, to evaluate their interactions in a cell-mimicking environment. Key details of the interaction have been unravelled by NMR experiments, both from the ligand and receptor perspectives, complemented by cryo-electron microscopy methods and molecular dynamics simulations.
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Affiliation(s)
- Marta
G. Lete
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
| | - Miriam Hoffmann
- Department
of Organic and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Nils Schomann
- Department
of Organic and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Ane Martínez-Castillo
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
| | - Francesca Peccati
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
| | - Patrick B. Konietzny
- Department
of Organic and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Sandra Delgado
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
| | - Nicole L. Snyder
- Department
of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Gonzalo Jiménez-Oses
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
- Ikerbasque,
Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Bizkaia, Spain
| | - Nicola G. A. Abrescia
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
- Ikerbasque,
Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Bizkaia, Spain
- Centro
de Investigación Biomédica en Red de Enfermedades Hepáticas
y Digestivas, Instituto de Salud Carlos
III, Madrid 28029, Spain
| | - Ana Ardá
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
- Ikerbasque,
Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Bizkaia, Spain
| | - Laura Hartmann
- Department
of Organic and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Jesús Jiménez-Barbero
- CIC
bioGUNE, Basque Research
& Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, Derio 48160, Bizkaia, Spain
- Ikerbasque,
Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Bizkaia, Spain
- Department
of Organic and Inorganic Chemistry, Faculty of Science and Technology, University of the Basque Country, EHU-UPV, 48940 Leioa, Spain
- Centro
de Investigación Biomédica En Red de Enfermedades Respiratorias, Madrid 28029, Spain
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6
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Quintana JI, Atxabal U, Unione L, Ardá A, Jiménez-Barbero J. Exploring multivalent carbohydrate-protein interactions by NMR. Chem Soc Rev 2023; 52:1591-1613. [PMID: 36753338 PMCID: PMC9987413 DOI: 10.1039/d2cs00983h] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Indexed: 02/09/2023]
Abstract
Nuclear Magnetic Resonance (NMR) has been widely employed to assess diverse features of glycan-protein molecular recognition events. Different types of qualitative and quantitative information at different degrees of resolution and complexity can be extracted from the proper application of the available NMR-techniques. In fact, affinity, structural, kinetic, conformational, and dynamic characteristics of the binding process are available. Nevertheless, except in particular cases, the affinity of lectin-sugar interactions is weak, mostly at the low mM range. This feature is overcome in biological processes by using multivalency, thus augmenting the strength of the binding. However, the application of NMR methods to monitor multivalent lectin-glycan interactions is intrinsically challenging. It is well known that when large macromolecular complexes are formed, the NMR signals disappear from the NMR spectrum, due to the existence of fast transverse relaxation, related to the large size and exchange features. Indeed, at the heart of the molecular recognition event, the associated free-bound chemical exchange process for both partners takes place in a particular timescale. Thus, these factors have to be considered and overcome. In this review article, we have distinguished, in a subjective manner, the existence of multivalent presentations in the glycan or in the lectin. From the glycan perspective, we have also considered whether multiple epitopes of a given ligand are presented in the same linear chain of a saccharide (i.e., poly-LacNAc oligosaccharides) or decorating different arms of a multiantennae scaffold, either natural (as in multiantennae N-glycans) or synthetic (of dendrimer or polymer nature). From the lectin perspective, the presence of an individual binding site at every monomer of a multimeric lectin may also have key consequences for the binding event at different levels of complexity.
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Affiliation(s)
- Jon I Quintana
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain.
| | - Unai Atxabal
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain.
| | - Luca Unione
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain.
- Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Bizkaia, Spain
| | - Ana Ardá
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain.
- Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Bizkaia, Spain
| | - Jesús Jiménez-Barbero
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain.
- Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Bizkaia, Spain
- Department of Organic Chemistry, II Faculty of Science and Technology, EHU-UPV, 48940 Leioa, Spain
- Centro de Investigación Biomédica En Red de Enfermedades Respiratorias, Madrid, Spain
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7
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Gerling-Driessen UIM, Hoffmann M, Schmidt S, Snyder NL, Hartmann L. Glycopolymers against pathogen infection. Chem Soc Rev 2023; 52:2617-2642. [PMID: 36820794 DOI: 10.1039/d2cs00912a] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Pathogens including viruses, bacteria, fungi, and parasites continue to shape our lives in profound ways every day. As we have learned to live in parallel with pathogens, we have gained a better understanding of the rules of engagement for how they bind, adhere, and invade host cells. One such mechanism involves the exploitation of host cell surface glycans for attachment/adhesion, one of the first steps of infection. This knowledge has led to the development of glycan-based diagnostics and therapeutics for the treatment and prevention of infection. One class of compounds that has become increasingly important are the glycopolymers. Glycopolymers are macromolecules composed of a synthetic scaffold presenting carbohydrates as side chain motifs. Glycopolymers are particularly attractive because their properties can be tuned by careful choice of the scaffold, carbohydrate/glycan, and overall presentation. In this review, we highlight studies over the past ten years that have examined the role of glycopolymers in pathogen adhesion and host cell infection, biofilm formation and removal, and drug delivery with the aim of examining the direct effects of these macromolecules on pathogen engagement. In addition, we also examine the role of glycopolymers as diagnostics for the detection and monitoring of pathogens.
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Affiliation(s)
- Ulla I M Gerling-Driessen
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
| | - Miriam Hoffmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
| | - Stephan Schmidt
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany. .,Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - Nicole L Snyder
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, USA
| | - Laura Hartmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
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8
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Cwynar P, Pasikowski P, Szweda R. One-pot approach for multi-step, iterative synthesis of sequence-defined oligocarbamates. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Riester O, Burkhardtsmaier P, Gurung Y, Laufer S, Deigner HP, Schmidt MS. Synergy of R-(-)carvone and cyclohexenone-based carbasugar precursors with antibiotics to enhance antibiotic potency and inhibit biofilm formation. Sci Rep 2022; 12:18019. [PMID: 36289389 PMCID: PMC9606123 DOI: 10.1038/s41598-022-22807-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/19/2022] [Indexed: 01/24/2023] Open
Abstract
The widespread use of antibiotics in recent decades has been a major factor in the emergence of antibiotic resistances. Antibiotic-resistant pathogens pose increasing challenges to healthcare systems in both developing and developed countries. To counteract this, the development of new antibiotics or adjuvants to combat existing resistance to antibiotics is crucial. Glycomimetics, for example carbasugars, offer high potential as adjuvants, as they can inhibit metabolic pathways or biofilm formation due to their similarity to natural substrates. Here, we demonstrate the synthesis of carbasugar precursors (CSPs) and their application as biofilm inhibitors for E. coli and MRSA, as well as their synergistic effect in combination with antibiotics to circumvent biofilm-induced antibiotic resistances. This results in a biofilm reduction of up to 70% for the CSP rac-7 and a reduction in bacterial viability of MRSA by approximately 45% when combined with the otherwise ineffective antibiotic mixture of penicillin and streptomycin.
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Affiliation(s)
- Oliver Riester
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany ,grid.10392.390000 0001 2190 1447Institute of Pharmaceutical Sciences, Department of Pharmacy and Biochemistry, Eberhard-Karls-University Tuebingen, Auf Der Morgenstelle 8, 72076 Tübingen, Germany
| | - Pia Burkhardtsmaier
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany
| | - Yuna Gurung
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany
| | - Stefan Laufer
- grid.10392.390000 0001 2190 1447Institute of Pharmaceutical Sciences, Department of Pharmacy and Biochemistry, Eberhard-Karls-University Tuebingen, Auf Der Morgenstelle 8, 72076 Tübingen, Germany ,Tuebingen Center for Academic Drug Discovery and Development (TüCAD2), 72076 Tübingen, Germany
| | - Hans-Peter Deigner
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany ,grid.10392.390000 0001 2190 1447Faculty of Science, Eberhard-Karls-University Tuebingen, Auf Der Morgenstelle 8, 72076 Tübingen, Germany ,grid.418008.50000 0004 0494 3022EXIM Department, Fraunhofer Institute IZI (Leipzig), Schillingallee 68, 18057 Rostock, Germany
| | - Magnus S. Schmidt
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany
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10
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Hoffmann M, Snyder NL, Hartmann L. Glycosaminoglycan Mimetic Precision Glycomacromolecules with Sequence-Defined Sulfation and Rigidity Patterns. Biomacromolecules 2022; 23:4004-4014. [PMID: 35959886 DOI: 10.1021/acs.biomac.2c00829] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sulfated glycosaminoglycans (sGAGs) such as heparan sulfate (HS) are structurally diverse linear polysaccharides that are involved in many biological processes and have gained interest as antiviral compounds. Their recognition is driven by a complex orchestra of structural parameters that are still under intense investigation. One distinct characteristic is the incorporation of sulfation patterns including highly sulfated and non-sulfated sequences that provide variations in flexibility and conformation, which in turn impact the biological function of sGAGs. However, these distinct features have not yet been fully realized in the synthetic preparation of sGAG mimetics. Here, we present the synthesis of three groups of sulfated glycomacromolecules as sGAG mimetics: (i) globally sulfated glycooligomers, (ii) glycooligomers with sequence-defined sulfation patterns, and (iii) a globally sulfated glycooligomer-oligo-L-proline hybrid structure. The complete synthesis, including chemical sulfation, was conducted on solid support, enabled by the introduction of a commercially available photocleavable linker allowing for the preservation of sensitive sulfates during cleavage of the products. Structures were obtained in good purity and with high degrees of sulfation demonstrating the wide applicability of this methodology to prepare tailor-made sulfated glycomacromolecules and similar sGAG mimetics. Structures were tested for their anticoagulant properties showing activity similar to their natural HS counterpart and significantly lower than HP.
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Affiliation(s)
- Miriam Hoffmann
- Department of Organic and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Nicole L Snyder
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Laura Hartmann
- Department of Organic and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
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11
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Pasch P, Killa M, Junghans HL, Schmidt M, Schmidt S, Voskuhl J, Hartmann L. Take your Positions and Shine: Effects of Positioning Aggregation-Induced Emission Luminophores within Sequence-Defined Macromolecules. Chemistry 2021; 27:10186-10192. [PMID: 33876476 PMCID: PMC8362002 DOI: 10.1002/chem.202101086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Indexed: 12/17/2022]
Abstract
A luminophore with aggregation‐induced emission (AIE) is employed for the conjugation onto supramolecular ligands to allow for detection of ligand binding. Supramolecular ligands are based on the combination of sequence‐defined oligo(amidoamine) scaffolds and guanidiniocarbonyl‐pyrrole (GCP) as binding motif. We hypothesize that AIE properties are strongly affected by positioning of the luminophore within the ligand scaffold. Therefore, we systematically investigate the effects placing the AIE luminophore at different positions within the overall construct, for example, in the main or side chain of the olig(amidoamine). Indeed, we can show that the position within the ligand structure strongly affects AIE, both for the ligand itself as well as when applying the ligand for the detection of different biological and synthetic polyanions.
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Affiliation(s)
- Peter Pasch
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Matthias Killa
- Faculty of chemistry (Organic chemistry) and CENIDE, University of Duisburg Essen, Universitätsstrasse 7, 45141, Essen, Germany
| | - Hauke Lukas Junghans
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Melanie Schmidt
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Stephan Schmidt
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Jens Voskuhl
- Faculty of chemistry (Organic chemistry) and CENIDE, University of Duisburg Essen, Universitätsstrasse 7, 45141, Essen, Germany
| | - Laura Hartmann
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
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12
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Cañada FJ, Canales Á, Valverde P, de Toro BF, Martínez-Orts M, Phillips PO, Pereda A. Conformational and Structural characterization of carbohydrates and their interactions studied by NMR. Curr Med Chem 2021; 29:1147-1172. [PMID: 34225601 DOI: 10.2174/0929867328666210705154046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/30/2021] [Accepted: 05/12/2021] [Indexed: 11/22/2022]
Abstract
Carbohydrates, either free or as glycans conjugated with other biomolecules, participate in many essential biological processes. Their apparent simplicity in terms of chemical functionality hides an extraordinary diversity and structural complexity. Deeply deciphering at the atomic level their structures is essential to understand their biological function and activities, but it is still a challenging task in need of complementary approaches and no generalized procedures are available to address the study of such complex, natural glycans. The versatility of Nuclear Magnetic Resonance spectroscopy (NMR) often makes it the preferred choice to study glycans and carbohydrates in solution media. The most basic NMR parameters, namely chemical shifts, coupling constants and nuclear Overhauser effects, allow defining short or repetitive chain sequences and characterize their structures and local geometries either in the free state or when interacting with other biomolecules, rendering additional information on the molecular recognition processes. The increased accessibility to carbohydrate molecules extensively or selectively labeled with 13C boosts the resolution and detail that analyzed glycan structures can reach. In turn, structural information derived from NMR, complemented with molecular modeling and theoretical calculations can also provide dynamic information on the conformational flexibility of carbohydrate structures. Furthermore, using partially oriented media or paramagnetic perturbations, it has been possible to introduce additional long-range observables rendering structural information on longer and branched glycan chains. In this review, we provide examples of these studies and an overview of the recent and most relevant NMR applications in the glycobiology field.
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Affiliation(s)
- Francisco Javier Cañada
- Structural and Chemical Biology Department, Centro de Investigaciones Biológicas Margarita Salas, CSIC, 28040 Madrid, Spain
| | - Ángeles Canales
- Departamento de Química Orgánica I, Facultad Ciencias Químicas, Universidad Complutense de Madrid, Avd. Complutense s/n, C.P. 28040 Madrid, Spain
| | - Pablo Valverde
- Structural and Chemical Biology Department, Centro de Investigaciones Biológicas Margarita Salas, CSIC, 28040 Madrid, Spain
| | - Beatriz Fernández de Toro
- Structural and Chemical Biology Department, Centro de Investigaciones Biológicas Margarita Salas, CSIC, 28040 Madrid, Spain
| | - Mónica Martínez-Orts
- Departamento de Química Orgánica I, Facultad Ciencias Químicas, Universidad Complutense de Madrid, Avd. Complutense s/n, C.P. 28040 Madrid, Spain
| | - Paola Oquist Phillips
- Structural and Chemical Biology Department, Centro de Investigaciones Biológicas Margarita Salas, CSIC, 28040 Madrid, Spain
| | - Amaia Pereda
- Structural and Chemical Biology Department, Centro de Investigaciones Biológicas Margarita Salas, CSIC, 28040 Madrid, Spain
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13
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Nagao M, Kichize M, Hoshino Y, Miura Y. Influence of Monomer Structures for Polymeric Multivalent Ligands: Consideration of the Molecular Mobility of Glycopolymers. Biomacromolecules 2021; 22:3119-3127. [PMID: 34152744 DOI: 10.1021/acs.biomac.1c00553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular mobility is important for interactions of biofunctional polymers with target molecules. Monomer structures for synthetic biofunctional polymers are usually selected based on their compatibility with polymerization systems, whereas the influence of monomer structures on the interaction with target molecules is hardly considered. In this report, we evaluate the correlation between the monomer structures of glycopolymers and their interactions with concanavalin A (ConA) with respect to the molecular mobility. Two types of glycopolymers bearing mannose are synthesized with acrylamide or acrylate monomers. Despite the similar structures, except for amide or ester bonds in the side chains, the acrylate-type glycopolymers exhibit stronger interaction with ConA both in the isothermal titration calorimetry measurement and in a hemagglutination inhibition assay. Characterization of the acrylate-type glycopolymers suggests that the higher binding constant arises from the higher molecular mobility of mannose units, which results from the rotational freedom of ester bonds in their side chains.
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Affiliation(s)
- Masanori Nagao
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
| | - Masaya Kichize
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
| | - Yu Hoshino
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiko Miura
- Department of Chemical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan
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14
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Pasch P, Höing A, Ueclue S, Killa M, Voskuhl J, Knauer SK, Hartmann L. PEGylated sequence-controlled macromolecules using supramolecular binding to target the Taspase1/Importin α interaction. Chem Commun (Camb) 2021; 57:3091-3094. [PMID: 33625405 DOI: 10.1039/d0cc07139k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel strategy to inhibit the oncologically relevant protease Taspase1 is explored by developing PEGylated macromolecular ligands presenting the supramolecular binding motif guanidiniocarbonylpyrrole (GCP). Taspase1 requires interaction of its nuclear localization signal (NLS) with import receptor Importin α. We show the synthesis and effective interference of PEGylated multivalent macromolecular ligands with Taspase1-Importin α-complex formation.
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Affiliation(s)
- Peter Pasch
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany.
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15
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van der Meer SB, Seiler T, Buchmann C, Partalidou G, Boden S, Loza K, Heggen M, Linders J, Prymak O, Oliveira CLP, Hartmann L, Epple M. Controlling the Surface Functionalization of Ultrasmall Gold Nanoparticles by Sequence-Defined Macromolecules. Chemistry 2021; 27:1451-1464. [PMID: 32959929 PMCID: PMC7898849 DOI: 10.1002/chem.202003804] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/15/2020] [Indexed: 02/06/2023]
Abstract
Ultrasmall gold nanoparticles (diameter about 2 nm) were surface-functionalized with cysteine-carrying precision macromolecules. These consisted of sequence-defined oligo(amidoamine)s (OAAs) with either two or six cysteine molecules for binding to the gold surface and either with or without a PEG chain (3400 Da). They were characterized by 1 H NMR spectroscopy, 1 H NMR diffusion-ordered spectroscopy (DOSY), small-angle X-ray scattering (SAXS), and high-resolution transmission electron microscopy. The number of precision macromolecules per nanoparticle was determined after fluorescent labeling by UV spectroscopy and also by quantitative 1 H NMR spectroscopy. Each nanoparticle carried between 40 and 100 OAA ligands, depending on the number of cysteine units per OAA. The footprint of each ligand was about 0.074 nm2 per cysteine molecule. OAAs are well suited to stabilize ultrasmall gold nanoparticles by selective surface conjugation and can be used to selectively cover their surface. The presence of the PEG chain considerably increased the hydrodynamic diameter of both dissolved macromolecules and macromolecule-conjugated gold nanoparticles.
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Affiliation(s)
- Selina Beatrice van der Meer
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE)University of Duisburg-EssenUniversitätsstr. 5–745117EssenGermany
| | - Theresa Seiler
- Organic Chemistry and Macromolecular ChemistryHeinrich Heine-University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
| | - Christin Buchmann
- Organic Chemistry and Macromolecular ChemistryHeinrich Heine-University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
| | - Georgia Partalidou
- Organic Chemistry and Macromolecular ChemistryHeinrich Heine-University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
| | - Sophia Boden
- Organic Chemistry and Macromolecular ChemistryHeinrich Heine-University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
| | - Kateryna Loza
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE)University of Duisburg-EssenUniversitätsstr. 5–745117EssenGermany
| | - Marc Heggen
- Ernst Ruska-Center for Microscopy and Spectroscopy with ElectronsForschungszentrum Jülich GmbH52425JülichGermany
| | - Jürgen Linders
- Physical Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE)University of Duisburg-EssenUniversitätsstr. 5–745117EssenGermany
| | - Oleg Prymak
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE)University of Duisburg-EssenUniversitätsstr. 5–745117EssenGermany
| | | | - Laura Hartmann
- Organic Chemistry and Macromolecular ChemistryHeinrich Heine-University DüsseldorfUniversitätsstr. 140225DüsseldorfGermany
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE)University of Duisburg-EssenUniversitätsstr. 5–745117EssenGermany
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16
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Banger A, Sindram J, Otten M, Kania J, Wilms D, Strzelczyk A, Miletic S, Marlovits TC, Karg M, Hartmann L. Synthesis and self-assembly of amphiphilic precision glycomacromolecules. Polym Chem 2021. [DOI: 10.1039/d1py00422k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Amphiphilic precision glycomacromolecules (APG) are synthesized using solid-phase synthesis and studied for their self-assembly behavior and as inhibitors of bacterial adhesion.
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Affiliation(s)
- Alexander Banger
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Julian Sindram
- Insitute of Physical Chemistry I: Colloids and Nanooptics, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Marius Otten
- Insitute of Physical Chemistry I: Colloids and Nanooptics, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Jessica Kania
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Dimitri Wilms
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Alexander Strzelczyk
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Sean Miletic
- University Medical Center Hamburg-Eppendorf (UKE), Institute of Structural and Systems Biology, Hamburg, Germany
- Centre for Structural Systems Biology (CSSB), Hamburg, Germany
- Deutsches Elektronen-Synchrotron Zentrum (DESY), Hamburg, Germany
| | - Thomas C. Marlovits
- University Medical Center Hamburg-Eppendorf (UKE), Institute of Structural and Systems Biology, Hamburg, Germany
- Centre for Structural Systems Biology (CSSB), Hamburg, Germany
- Deutsches Elektronen-Synchrotron Zentrum (DESY), Hamburg, Germany
| | - Matthias Karg
- Insitute of Physical Chemistry I: Colloids and Nanooptics, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Laura Hartmann
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany
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17
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Bertuzzi S, Quintana JI, Ardá A, Gimeno A, Jiménez-Barbero J. Targeting Galectins With Glycomimetics. Front Chem 2020; 8:593. [PMID: 32850631 PMCID: PMC7426508 DOI: 10.3389/fchem.2020.00593] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/08/2020] [Indexed: 01/06/2023] Open
Abstract
Among glycan-binding proteins, galectins, β-galactoside-binding lectins, exhibit relevant biological roles and are implicated in many diseases, such as cancer and inflammation. Their involvement in crucial pathologies makes them interesting targets for drug discovery. In this review, we gather the last approaches toward the specific design of glycomimetics as potential drugs against galectins. Different approaches, either using specific glycomimetic molecules decorated with key functional groups or employing multivalent presentations of lactose and N-acetyl lactosamine analogs, have provided promising results for binding and modulating different galectins. The review highlights the results obtained with these approximations, from the employment of S-glycosyl compounds to peptidomimetics and multivalent glycopolymers, mostly employed to recognize and/or detect hGal-1 and hGal-3.
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Affiliation(s)
- Sara Bertuzzi
- CIC bioGUNE, Basque Research Technology Alliance, Derio, Spain
| | - Jon I Quintana
- CIC bioGUNE, Basque Research Technology Alliance, Derio, Spain
| | - Ana Ardá
- CIC bioGUNE, Basque Research Technology Alliance, Derio, Spain
| | - Ana Gimeno
- CIC bioGUNE, Basque Research Technology Alliance, Derio, Spain
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Basque Research Technology Alliance, Derio, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Spain.,Department of Organic Chemistry II, Faculty of Science and Technology, University of the Basque Country - UPV-EHU, Leioa, Spain
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18
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Fischer L, Steffens RC, Paul TJ, Hartmann L. Catechol-functionalized sequence-defined glycomacromolecules as covalent inhibitors of bacterial adhesion. Polym Chem 2020. [DOI: 10.1039/d0py00975j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein, we present the synthesis of catechol functionalized sequence-defined glycomacromolecules that can covalently block the binding site of lectins and bacterial adhesins.
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Affiliation(s)
- Lukas Fischer
- Institut für Organische und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Ricarda C. Steffens
- Institut für Organische und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Tanja J. Paul
- Institut für Organische und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Laura Hartmann
- Institut für Organische und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
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19
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Bennion MC, Burch MA, Dennis DG, Lech ME, Neuhaus K, Fendler NL, Parris MR, Cuadra JE, Dixon CF, Mukosera GT, Blauch DN, Hartmann L, Snyder NL, Ruppel JV. Synthesis of Porphyrin and Bacteriochlorin Glycoconjugates through CuAAC Reaction Tuning. European J Org Chem 2019; 2019:6496-6503. [PMID: 33041648 PMCID: PMC7546392 DOI: 10.1002/ejoc.201901128] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 02/06/2023]
Abstract
Rapid and reproducible access to a series of unique porphyrin and bacteriochlorin glycoconjugates, including meso-glycosylated porphyrins and bacteriochlorins, and beta-glycosylated porphyrins, via copper catalyzed azide-alkyne 1,3-dipolar cycloaddition (CuAAC) is reported for the first time. The work presented highlights the system-dependent reaction conditions required for glycosylation to porphyrins and bacteriochlorins based on the unique electronic properties of each ring system. Attenuated reaction conditions were used to synthesize fifteen new glycosylated porphyrin and bacteriochlorin analogs in 74 - 99% yield, and were extended to solid support to produce the first oligo(amidoamine)-based porphyrin glycoconjugate. These compounds hold significant potential as next generation water soluble catalysts and photodynamic therapy/photodynamic inactivation (PDT/PDI) agents.
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Affiliation(s)
- Matthew C Bennion
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
| | - Morgan A Burch
- Department of Chemistry Davidson College 102 North Main Street, Davidson, NC 28035 USA
| | - David G Dennis
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
| | - Melissa E Lech
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
| | - Kira Neuhaus
- Department of Chemistry Davidson College 102 North Main Street, Davidson, NC 28035 USA
- Department of Organic and Macromolecular Chemistry Heinrich-Heine-University Düsseldorf Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Nikole L Fendler
- Department of Chemistry Davidson College 102 North Main Street, Davidson, NC 28035 USA
| | - Matthew R Parris
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
| | - Jessica E Cuadra
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
| | - Charlie F Dixon
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
| | - George T Mukosera
- Department of Chemistry Davidson College 102 North Main Street, Davidson, NC 28035 USA
| | - David N Blauch
- Department of Chemistry Davidson College 102 North Main Street, Davidson, NC 28035 USA
| | - Laura Hartmann
- Department of Organic and Macromolecular Chemistry Heinrich-Heine-University Düsseldorf Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Nicole L Snyder
- Department of Chemistry Davidson College 102 North Main Street, Davidson, NC 28035 USA
| | - Joshua V Ruppel
- Division of Natural Sciences and Engineering University of South Carolina Upstate 800 University Way, Spartanburg SC. 29303 USA
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20
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Strategies for the Development of Glycomimetic Drug Candidates. Pharmaceuticals (Basel) 2019; 12:ph12020055. [PMID: 30978966 PMCID: PMC6631974 DOI: 10.3390/ph12020055] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/03/2019] [Accepted: 04/09/2019] [Indexed: 02/06/2023] Open
Abstract
Carbohydrates are a structurally-diverse group of natural products which play an important role in numerous biological processes, including immune regulation, infection, and cancer metastasis. Many diseases have been correlated with changes in the composition of cell-surface glycans, highlighting their potential as a therapeutic target. Unfortunately, native carbohydrates suffer from inherently weak binding affinities and poor pharmacokinetic properties. To enhance their usefulness as drug candidates, 'glycomimetics' have been developed: more drug-like compounds which mimic the structure and function of native carbohydrates. Approaches to improve binding affinities (e.g., deoxygenation, pre-organization) and pharmacokinetic properties (e.g., limiting metabolic degradation, improving permeability) have been highlighted in this review, accompanied by relevant examples. By utilizing these strategies, high-affinity ligands with optimized properties can be rationally designed and used to address therapies for novel carbohydrate-binding targets.
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