1
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Hill SK, England RM, Perrier S. Modular design of cyclic peptide - polymer conjugate nanotubes for delivery and tunable release of anti-cancer drug compounds. J Control Release 2024; 367:687-696. [PMID: 38262487 DOI: 10.1016/j.jconrel.2024.01.023] [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: 07/05/2023] [Revised: 12/18/2023] [Accepted: 01/12/2024] [Indexed: 01/25/2024]
Abstract
High aspect-ratio nanomaterials have recently emerged as promising drug delivery vehicles due to evidence of strong cellular association and prolonged in vivo circulation times. Cyclic peptide - polymer conjugate nanotubes are excellent candidates due to their elongated morphology, their supramolecular composition and high degree of pliability due to the versatility in manipulating amino acid sequence and polymer type. In this work, we explore the use of a nanotube structure on which a potent anti-cancer drug, camptothecin, is attached alongside hydrophilic or amphiphilic RAFT polymers, which shield the cargo. We show that subtle modifications to the cleavable linker type and polymer architecture have a dramatic influence over the rate of drug release in biological conditions. In vitro studies revealed that multiple cancer cell lines in 2D and 3D models responded effectively to the nanotube treatment, and analogous fluorescently labelled materials revealed key mechanistic information regarding the degree of cellular uptake and intracellular fate. Importantly, the ability to instruct specific drug release profiles indicates a potential for these nanomaterials as vectors which can provide sustained drug concentrations for a maximal therapeutic effect.
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Affiliation(s)
- Sophie K Hill
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Richard M England
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Macclesfield, UK
| | - Sébastien Perrier
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK; Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
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2
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Song Q, Cheng Z, Kariuki M, Hall SCL, Hill SK, Rho JY, Perrier S. Molecular Self-Assembly and Supramolecular Chemistry of Cyclic Peptides. Chem Rev 2021; 121:13936-13995. [PMID: 33938738 PMCID: PMC8824434 DOI: 10.1021/acs.chemrev.0c01291] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Indexed: 01/19/2023]
Abstract
This Review focuses on the establishment and development of self-assemblies governed by the supramolecular interactions between cyclic peptides. The Review first describes the type of cyclic peptides able to assemble into tubular structures to form supramolecular cyclic peptide nanotubes. A range of cyclic peptides have been identified to have such properties, including α-peptides, β-peptides, α,γ-peptides, and peptides based on δ- and ε-amino acids. The Review covers the design and functionalization of these cyclic peptides and expands to a recent advance in the design and application of these materials through their conjugation to polymer chains to generate cyclic peptide-polymer conjugates nanostructures. The Review, then, concentrates on the challenges in characterizing these systems and presents an overview of the various analytical and characterization techniques used to date. This overview concludes with a critical survey of the various applications of the nanomaterials obtained from supramolecular cyclic peptide nanotubes, with a focus on biological and medical applications, ranging from ion channels and membrane insertion to antibacterial materials, anticancer drug delivery, gene delivery, and antiviral applications.
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Affiliation(s)
- Qiao Song
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Zihe Cheng
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Maria Kariuki
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | | | - Sophie K. Hill
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Julia Y. Rho
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Sébastien Perrier
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
- Warwick Medical
School, University of Warwick, Coventry CV4 7AL, U.K.
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
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3
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Martin J, Desfoux A, Martinez J, Amblard M, Mehdi A, Vezenkov L, Subra G. Bottom-up strategies for the synthesis of peptide-based polymers. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Hasan A, Lee K, Tewari K, Pandey LM, Messersmith PB, Faulds K, Maclean M, Lau KHA. Surface Design for Immobilization of an Antimicrobial Peptide Mimic for Efficient Anti-Biofouling. Chemistry 2020; 26:5789-5793. [PMID: 32059067 PMCID: PMC7318250 DOI: 10.1002/chem.202000746] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Indexed: 11/11/2022]
Abstract
Microbial surface attachment negatively impacts a wide range of devices from water purification membranes to biomedical implants. Mimics of antimicrobial peptides (AMPs) constituted from poly(N-substituted glycine) "peptoids" are of great interest as they resist proteolysis and can inhibit a wide spectrum of microbes. We investigate how terminal modification of a peptoid AMP-mimic and its surface immobilization affect antimicrobial activity. We also demonstrate a convenient surface modification strategy for enabling alkyne-azide "click" coupling on amino-functionalized surfaces. Our results verified that the N- and C-terminal peptoid structures are not required for antimicrobial activity. Moreover, our peptoid immobilization density and choice of PEG tether resulted in a "volumetric" spatial separation between AMPs that, compared to past studies, enabled the highest AMP surface activity relative to bacterial attachment. Our analysis suggests the importance of spatial flexibility for membrane activity and that AMP separation may be a controlling parameter for optimizing surface anti-biofouling.
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Affiliation(s)
- Abshar Hasan
- Bio-Interface & Environmental Engineering LabDepartment of Biosciences and BioengineeringIndian Institute of Technology GuwahatiAssam781039India
- Department of Pure & Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - Kyueui Lee
- Department of BioengineeringUniversity of California, BerkeleyBerkeleyUSA
| | - Kunal Tewari
- Department of Pure & Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - Lalit M. Pandey
- Bio-Interface & Environmental Engineering LabDepartment of Biosciences and BioengineeringIndian Institute of Technology GuwahatiAssam781039India
| | - Phillip B. Messersmith
- 1. Department of Bioengineering2. Department of Materials Science and EngineeringUniversity of California, BerkeleyBerkeleyUSA
- Materials Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyUSA
| | - Karen Faulds
- Department of Pure & Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - Michelle Maclean
- 1.Department of Electronic & Electrical Engineering2.Department of Biomedical EngineeringUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
| | - King Hang Aaron Lau
- Department of Pure & Applied ChemistryUniversity of Strathclyde295 Cathedral StreetGlasgowG1 1XLUK
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5
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Gruschwitz FV, Klein T, Catrouillet S, Brendel JC. Supramolecular polymer bottlebrushes. Chem Commun (Camb) 2020; 56:5079-5110. [PMID: 32347854 DOI: 10.1039/d0cc01202e] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The field of supramolecular chemistry has long been known to generate complex materials of different sizes and shapes via the self-assembly of single or multiple low molar mass building blocks. Matching the complexity found in natural assemblies, however, remains a long-term challenge considering its precision in organizing large macromolecules into well-defined nanostructures. Nevertheless, the increasing understanding of supramolecular chemistry has paved the way to several attempts in arranging synthetic macromolecules into larger ordered structures based on non-covalent forces. This review is a first attempt to summarize the developments in this field, which focus mainly on the formation of one-dimensional, linear, cylindrical aggregates in solution with pendant polymer chains - therefore coined supramolecular polymer bottlebrushes in accordance with their covalent equivalents. Distinguishing by the different supramolecular driving forces, we first describe systems based on π-π interactions, which comprise, among others, the well-known perylene motif, but also the early attempts using cyclophanes. However, the majority of reported supramolecular polymer bottlebrushes are formed by hydrogen bonds as they can for example be found in linear and cyclic peptides, as well as so called sticker molecules containing multiple urea groups. Besides this overview on the reported motifs and their impact on the resulting morphology of the polymer nanostructures, we finally highlight the potential benefits of such non-covalent interactions and refer to promising future directions of this still mostly unrecognized field of supramolecular research.
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Affiliation(s)
- Franka V Gruschwitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany.
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6
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Cortez-Díaz MD, d'Orlyé F, Varenne A. Characterization of New Cyclic D,L-α-Alternate Amino Acid Peptides by Capillary Electrophoresis Coupled to Electrospray Ionization Mass Spectrometry. Methods Mol Biol 2019; 1855:315-326. [PMID: 30426428 DOI: 10.1007/978-1-4939-8793-1_27] [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] [Indexed: 06/09/2023]
Abstract
The self-assembly of peptide nanotubes (PNTs) depends on the structure and chemistry of cyclic peptide (CP) monomers, impacting on their properties, which makes the choice of their monomers and their characterization a high challenge. For this purpose, we developed for the first time a capillary electrophoresis coupled to electrospray ionization mass spectrometry (CE-ESI-MS) methodology and characterized a set of eight original CP sequences of 8, 10, and 12 D,L-α-alternate amino acids with a controlled internal diameter (from 7 to 13 Å) and various properties (diameter, global surface charge, hydrophobicity). This new CE-ESI-MS methodology allows verifying the structure, the purity, as well as the stability (when stored during several months) of interesting potential precursors for PNTs that could be employed as nanoplatforms in diagnostics or pseudo sieving tools for separation purposes.
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Affiliation(s)
- María Dámaris Cortez-Díaz
- Chimie ParisTech PSL, Ecole Nationale Supérieure de Chimie, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la Santé UMR 8258, Paris, France
- Université Paris Descartes, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (N°1022), Paris, France
- Departamento de Quimica, Universidad de Guanajuato, Guanajuato, Mexico
| | - Fanny d'Orlyé
- Chimie ParisTech PSL, Ecole Nationale Supérieure de Chimie, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la Santé UMR 8258, Paris, France
- Université Paris Descartes, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (N°1022), Paris, France
| | - Anne Varenne
- Chimie ParisTech PSL, Ecole Nationale Supérieure de Chimie, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France.
- CNRS, Unité de Technologies Chimiques et Biologiques pour la Santé UMR 8258, Paris, France.
- Université Paris Descartes, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France.
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (N°1022), Paris, France.
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7
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Silk MR, Mohanty B, Sampson JB, Scanlon MJ, Thompson PE, Chalmers DK. Controlled Construction of Cyclic d
/ l
Peptide Nanorods. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mitchell R. Silk
- Medicinal Chemistry; Monash Institute of Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
| | - Biswaranjan Mohanty
- Medicinal Chemistry; Monash Institute of Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
| | - Joanne B. Sampson
- Medicinal Chemistry; Monash Institute of Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
| | - Martin J. Scanlon
- Medicinal Chemistry; Monash Institute of Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
| | - Philip E. Thompson
- Medicinal Chemistry; Monash Institute of Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
| | - David K. Chalmers
- Medicinal Chemistry; Monash Institute of Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
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8
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Silk MR, Mohanty B, Sampson JB, Scanlon MJ, Thompson PE, Chalmers DK. Controlled Construction of Cyclic d / l Peptide Nanorods. Angew Chem Int Ed Engl 2018; 58:596-601. [PMID: 30452108 DOI: 10.1002/anie.201811910] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Indexed: 11/10/2022]
Abstract
Cyclic d / l peptides (CPs) assemble spontaneously via backbone H-bonding to form extended nanostructures. These modular materials have great potential as versatile bionanomaterials. However, the useful development of CP nanomaterials requires practical methods to direct and control their assembly. In this work, we present novel, heterogeneous, covalently linked CP tetramers that achieve local control over the CP subunit order and composition through coupling of amino acid side-chains using copper-activated azide-alkyne cycloaddition and disulfide bond formation. Cryo-transmission electron microscopy revealed the formation of highly ordered, fibrous nanostructures, while NMR studies showed that these systems have strong intramolecular H-bonding in solution. The introduction of inter-CP tethers is expected to enable the development of complex nanomaterials with controllable chemical properties, facilitating the development of precisely functionalized or "decorated" peptide nanostructures.
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Affiliation(s)
- Mitchell R Silk
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
| | - Biswaranjan Mohanty
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
| | - Joanne B Sampson
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
| | - Martin J Scanlon
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
| | - Philip E Thompson
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
| | - David K Chalmers
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
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9
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Li Q, Zhang J, Wang Y, Qi W, Su R, He Z. Peptide‐Templated Synthesis of TiO2Nanofibers with Tunable Photocatalytic Activity. Chemistry 2018; 24:18123-18129. [DOI: 10.1002/chem.201804514] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Qing Li
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Jiaxing Zhang
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Yuefei Wang
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination TechnologyTianjin University Tianjin 300072 P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
- Collaborative Innovation Centre of Chemical Science, and Engineering (Tianjin) Tianjin 300072 P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination TechnologyTianjin University Tianjin 300072 P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
- Collaborative Innovation Centre of Chemical Science, and Engineering (Tianjin) Tianjin 300072 P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination TechnologyTianjin University Tianjin 300072 P. R. China
| | - Zhimin He
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
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10
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Novelli F, De Santis S, Morosetti S, Titubante M, Masci G, Scipioni A. Peptides with regularly alternating enantiomeric sequence: From ion channel models to bioinspired nanotechnological applications. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Federica Novelli
- Dipartimento di ChimicaUniversità La Sapienza, Piazzale A. MoroRome5‐00185 Italy
| | - Serena De Santis
- Dipartimento di ChimicaUniversità La Sapienza, Piazzale A. MoroRome5‐00185 Italy
| | - Stefano Morosetti
- Dipartimento di ChimicaUniversità La Sapienza, Piazzale A. MoroRome5‐00185 Italy
| | - Mattia Titubante
- Dipartimento di ChimicaUniversità La Sapienza, Piazzale A. MoroRome5‐00185 Italy
| | - Giancarlo Masci
- Dipartimento di ChimicaUniversità La Sapienza, Piazzale A. MoroRome5‐00185 Italy
| | - Anita Scipioni
- Dipartimento di ChimicaUniversità La Sapienza, Piazzale A. MoroRome5‐00185 Italy
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11
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Novelli F, De Santis S, Diociaiuti M, Giordano C, Morosetti S, Punzi P, Sciubba F, Viali V, Masci G, Scipioni A. Curcumin loaded nanocarriers obtained by self-assembly of a linear d,l-octapeptide-poly(ethylene glycol) conjugate. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.11.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Arakawa CK, Badeau BA, Zheng Y, DeForest CA. Multicellular Vascularized Engineered Tissues through User-Programmable Biomaterial Photodegradation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:10.1002/adma.201703156. [PMID: 28737278 PMCID: PMC5628157 DOI: 10.1002/adma.201703156] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 06/20/2017] [Indexed: 05/18/2023]
Abstract
A photodegradable material-based approach to generate endothelialized 3D vascular networks within cell-laden hydrogel biomaterials is introduced. Exploiting multiphoton lithography, microchannel networks spanning nearly all size scales of native human vasculature are readily generated with unprecedented user-defined 4D control. Intraluminal channel architectures of synthetic vessels are fully customizable, providing new opportunities for next-generation microfluidics and directed cell function.
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Affiliation(s)
- Christopher K Arakawa
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA
| | - Barry A Badeau
- Department of Chemical Engineering, University of Washington, 3781, Okanogan Lane NE, Seattle, WA, 98195, USA
| | - Ying Zheng
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, 850 Republican Street, Seattle, WA, 98109, USA
| | - Cole A DeForest
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA
- Department of Chemical Engineering, University of Washington, 3781, Okanogan Lane NE, Seattle, WA, 98195, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, 850 Republican Street, Seattle, WA, 98109, USA
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13
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Silk MR, Newman J, Ratcliffe JC, White JF, Caradoc-Davies T, Price JR, Perrier S, Thompson PE, Chalmers DK. Parallel and antiparallel cyclic d/l peptide nanotubes. Chem Commun (Camb) 2017; 53:6613-6616. [PMID: 28581562 DOI: 10.1039/c7cc00846e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanotubes made from H-bonded cyclic d/l peptide (CP) subunits have great potential for the construction of nanomaterials of wide chemical and structural diversity but, to date, difficulties in structural characterisation have restricted development of these materials. We present the first crystal structures of continuous CP nanotubes with antiparallel and parallel stacking arrangements, assembled separately from two peptides; cyclo[(Asp-d-Leu-Lys-d-Leu)2] and cyclo[(Asp-d-Ala-Lys-d-Ala)2].
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Affiliation(s)
- Mitchell R Silk
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
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14
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Pashuck ET, Duchet BJR, Hansel CS, Maynard SA, Chow LW, Stevens MM. Controlled Sub-Nanometer Epitope Spacing in a Three-Dimensional Self-Assembled Peptide Hydrogel. ACS NANO 2016; 10:11096-11104. [PMID: 28024362 DOI: 10.1021/acsnano.6b05975] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cells in the body use a variety of mechanisms to ensure the specificity and efficacy of signal transduction. One way that this is achieved is through tight spatial control over the position of different proteins, signaling sequences, and biomolecules within and around cells. For instance, the extracellular matrix protein fibronectin presents RGDS and PHSRN sequences that synergistically bind the α5β1 integrin when separated by 3.2 nm but are unable to bind when this distance is >5.5 nm.1 Building biomaterials to controllably space different epitopes with subnanometer accuracy in a three-dimensional (3D) hydrogel is challenging. Here, we synthesized peptides that self-assemble into nanofiber hydrogels utilizing the β-sheet motif, which has a known regular spacing along the peptide backbone. By modifying specific locations along the peptide, we are able to controllably space different epitopes with subnanometer accuracy at distances from 0.7 nm to over 6 nm, which is within the size range of many protein clusters. Endothelial cells encapsulated within hydrogels displaying RGDS and PHSRN in the native 3.2 nm spacing showed a significant upregulation in the expression of the alpha 5 integrin subunit compared to those in hydrogels with a 6.2 nm spacing, demonstrating the physiological relevance of the spacing. Furthermore, after 24 h the cells in hydrogels with the 3.2 nm spacing appeared to be more spread with increased staining for the α5β1 integrin. This self-assembling peptide system can controllably space multiple epitopes with subnanometer accuracy, demonstrating an exciting platform to study the effects of ligand density and location on cells within a synthetic 3D environment.
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Affiliation(s)
- E Thomas Pashuck
- Department of Materials, ‡Department of Bioengineering, §Institute of Biomedical Engineering, and ⊥Department of Chemistry, Imperial College London , London SW7 2AZ, United Kingdom
| | - Benoît J R Duchet
- Department of Materials, ‡Department of Bioengineering, §Institute of Biomedical Engineering, and ⊥Department of Chemistry, Imperial College London , London SW7 2AZ, United Kingdom
| | - Catherine S Hansel
- Department of Materials, ‡Department of Bioengineering, §Institute of Biomedical Engineering, and ⊥Department of Chemistry, Imperial College London , London SW7 2AZ, United Kingdom
| | - Stephanie A Maynard
- Department of Materials, ‡Department of Bioengineering, §Institute of Biomedical Engineering, and ⊥Department of Chemistry, Imperial College London , London SW7 2AZ, United Kingdom
| | - Lesley W Chow
- Department of Materials, ‡Department of Bioengineering, §Institute of Biomedical Engineering, and ⊥Department of Chemistry, Imperial College London , London SW7 2AZ, United Kingdom
| | - Molly M Stevens
- Department of Materials, ‡Department of Bioengineering, §Institute of Biomedical Engineering, and ⊥Department of Chemistry, Imperial College London , London SW7 2AZ, United Kingdom
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15
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Koh ML, FitzGerald PA, Warr GG, Jolliffe KA, Perrier S. Study of (Cyclic Peptide)-Polymer Conjugate Assemblies by Small-Angle Neutron Scattering. Chemistry 2016; 22:18419-18428. [PMID: 27862384 DOI: 10.1002/chem.201603091] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Indexed: 11/06/2022]
Abstract
We present a fundamental study into the self-assembly of (cyclic peptide)-polymer conjugates as a versatile supramolecular motif to engineer nanotubes with defined structure and dimensions, as characterised in solution using small-angle neutron scattering (SANS). This work demonstrates the ability of the grafted polymer to stabilise and/or promote the formation of unaggregated nanotubes by the direct comparison to the unconjugated cyclic peptide precursor. This ideal case permitted a further study into the growth mechanism of self-assembling cyclic peptides, allowing an estimation of the cooperativity. Furthermore, we show the dependency of the nanostructure on the polymer and peptide chemical functionality in solvent mixtures that vary in the ability to compete with the intermolecular associations between cyclic peptides and ability to solvate the polymer shell.
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Affiliation(s)
- Ming Liang Koh
- School of Chemistry, The University of Sydney, NSW 2006, Australia.,Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | | | - Gregory G Warr
- School of Chemistry, The University of Sydney, NSW 2006, Australia
| | | | - Sébastien Perrier
- School of Chemistry, The University of Sydney, NSW 2006, Australia.,Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK.,Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, VIC 3052, Australia
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16
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Catrouillet S, Brendel JC, Larnaudie S, Barlow T, Jolliffe KA, Perrier S. Tunable Length of Cyclic Peptide-Polymer Conjugate Self-Assemblies in Water. ACS Macro Lett 2016; 5:1119-1123. [PMID: 35658192 DOI: 10.1021/acsmacrolett.6b00586] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polymers conjugated to cyclic peptides capable of forming strong hydrogen bonds can self-assemble into supramolecular bottlebrushes even in aqueous solutions. However, controlling the aggregation of these supramolecular assemblies remains an obstacle that is yet to be overcome. By introducing pH-responsive poly(dimethylamino ethyl methacrylate) (pDMAEMA) arms, the repulsive forces were tuned by adjusting the degree of protonation on the polymer arms. Neutron scattering experiments demonstrated that conjugates in an uncharged state will self-assemble into supramolecular bottlebrushes. Reducing the pH in the system led to a decrease in the number of aggregation, which was reversible by addition of base. Potentiometric titration showed a correlation between the number of aggregation and the degree of ionization of the pDMAEMA arms. Hence, a balance between the strength of the hydrogen bonds and the repulsive electrostatic interactions determines the number of aggregation and extent of self-assembly. The presented work demonstrates that conjugate self-association can be controlled by tuning the charge density on the conjugated polymer arms, paving the way for the use of responsive cyclic peptide conjugates in pharmaceutical applications.
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Affiliation(s)
- Sylvain Catrouillet
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Johannes C. Brendel
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, VIC 3052, Australia
| | - Sophie Larnaudie
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Tammie Barlow
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | | | - Sébastien Perrier
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, VIC 3052, Australia
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17
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Vandewalle S, Billiet S, Driessen F, Du Prez FE. Macromolecular Coupling in Seconds of Triazolinedione End-Functionalized Polymers Prepared by RAFT Polymerization. ACS Macro Lett 2016; 5:766-771. [PMID: 35614672 DOI: 10.1021/acsmacrolett.6b00342] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The ultrafast and additive-free triazolinedione-click reaction with electron rich (di)enes is a powerful method for the ultrafast ligation of polymer segments. A versatile method is described for the introduction of clickable TAD end groups in various polymer segments, using reversible addition-fragmentation chain transfer polymerization. These triazolinedione-functionalized prepolymers were subsequently used for macromolecular functionalization with a low molecular weight diene and block copolymer synthesis of different types within seconds, at ambient conditions, through the coupling with diene-functionalized polymers such as poly(ethylene glycol) and poly(isobornyl acrylate).
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Affiliation(s)
- Stef Vandewalle
- Department
of Organic and
Macromolecular Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
| | - Stijn Billiet
- Department
of Organic and
Macromolecular Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
| | - Frank Driessen
- Department
of Organic and
Macromolecular Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
| | - Filip E. Du Prez
- Department
of Organic and
Macromolecular Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Ghent, Belgium
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18
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Benjamin A, Keten S. Polymer Conjugation as a Strategy for Long-Range Order in Supramolecular Polymers. J Phys Chem B 2016; 120:3425-33. [DOI: 10.1021/acs.jpcb.5b12547] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ari Benjamin
- Department
of Mechanical
Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3109, United States
| | - Sinan Keten
- Department
of Mechanical
Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3109, United States
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19
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Design, synthesis, and characterization of new cyclic d,l-α-alternate amino acid peptides by capillary electrophoresis coupled to electrospray ionization mass spectrometry. Anal Biochem 2016; 502:8-15. [PMID: 26969790 DOI: 10.1016/j.ab.2016.02.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 02/26/2016] [Accepted: 02/29/2016] [Indexed: 11/21/2022]
Abstract
The self-assembly of peptide nanotubes (PNTs) depends on the structure and chemistry of cyclic peptide (CP) monomers, having an impact on their properties, making the choice of their monomers and their characterization a great challenge. We synthesized for the first time a new set of eight original CP sequences of 8, 10, and 12 d,l-α-alternate amino acids with a controlled internal diameter from 7 to 13 Å. They present various properties (e.g., diameter, global surface charge, hydrophobicity) that can open the way to new applications. Their structure and purity were determined thanks to a capillary electrophoresis coupled to electrospray ionization mass spectrometry (CE-ESI-MS) methodology developed for the first time for this purpose. The CPs were successfully separated in a basic hydro-organic background electrolyte (BGE, pH 8.0, H2O/EtOH 50:50, v/v) and analyzed in MS positive mode. The effect of CP structure on electrophoretic mobility was studied, and the mass spectra were deeply analyzed. This methodology allowed verifying their purity and the absence of linear peptide precursors as well as their stability when stored over several months. Therefore, we have developed a new CE-ESI-MS methodology for the structure and purity control of interesting potential precursors for PNTs that could be employed as nanoplatforms in diagnostics or as pseudo sieving tools for separative purposes.
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20
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Potnuru M, Madhavan N. Robust carboxylated polymer pores from a cyclic peptide template. Polym Chem 2016. [DOI: 10.1039/c5py01313e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Larnaudie SC, Brendel JC, Jolliffe KA, Perrier S. Cyclic peptide-polymer conjugates: Grafting-to vs grafting-from. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27937] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sophie C. Larnaudie
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Johannes C. Brendel
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | - Katrina A. Jolliffe
- School of Chemistry; The University of Sydney; Building F11 New South Wales Sydney 2006 Australia
| | - Sébastien Perrier
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
- Faculty of Pharmacy and Pharmaceutical Sciences; Monash University; 381 Royal Parade Parkville Victoria 3052 Australia
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22
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Zhang C, Xu T. Co-assembly of cyclic peptide nanotubes and block copolymers in thin films: controlling the kinetic pathway. NANOSCALE 2015; 7:15117-15121. [PMID: 26355605 DOI: 10.1039/c5nr03915k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Directed co-assembly of polymer-conjugated cyclic peptide nanotubes (CPNs) and block copolymers in thin films is a viable approach to fabricate sub-nanometer porous membranes without synthesizing nanotubes with identical length and vertical alignment. Here we show that the process is pathway dependent and successful co-assembly requires eliminating CPNs larger than 100 nm in solution. Optimizing polymer-solvent interactions can improve conjugate dispersion to a certain extent, but this limits thin film fabrication. Introduction of a trace amount of hydrogen-bond blockers, such as trifluoroacetic acid by vapor absorption, is more effective to reduce CPN aggregation in solution and circumvents issues of solvent immiscibility. This study provides critical insights into guided assemblies within nanoscopic frameworks toward sub-nanometer porous membranes.
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Affiliation(s)
- Chen Zhang
- Department of Materials Science and Engineering, University of California, Berkeley, CA 94720-1760, USA.
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23
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Marine JE, Liang X, Song S, Rudick JG. Azide-rich peptides via an on-resin diazotransfer reaction. Biopolymers 2015; 104:419-26. [PMID: 25753459 PMCID: PMC4516611 DOI: 10.1002/bip.22634] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 02/23/2015] [Accepted: 02/24/2015] [Indexed: 12/19/2022]
Abstract
Azide-containing amino acids are valuable building blocks in peptide chemistry, because azides are robust partners in several bioorthogonal reactions. Replacing polar amino acids with apolar, azide-containing amino acids in solid-phase peptide synthesis can be tricky, especially when multiple azide residues are to be introduced in the amino acid sequence. We present a strategy for effectively incorporating multiple azide-containing residues site-specifically.
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Affiliation(s)
- Jeannette E. Marine
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, United States
| | - Xiaoli Liang
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, United States
| | - Shuang Song
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, United States
| | - Jonathan G. Rudick
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, United States
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24
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Catrouillet S, Bouteiller L, Nicol E, Nicolai T, Pensec S, Jacquette B, Le Bohec M, Colombani O. Self-Assembly and Critical Solubility Temperature of Supramolecular Polystyrene Bottle-Brushes in Cyclohexane. Macromolecules 2015. [DOI: 10.1021/ma5024022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sylvain Catrouillet
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Laurent Bouteiller
- UMR
8232, IPCM, Chimie des Polymères, Sorbonne Université, UPMC Université Paris 06, F-75005 Paris, France
- UMR
8232, IPCM, Chimie des Polymères, CNRS, 75005 Paris, France
| | - Erwan Nicol
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Taco Nicolai
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Sandrine Pensec
- UMR
8232, IPCM, Chimie des Polymères, Sorbonne Université, UPMC Université Paris 06, F-75005 Paris, France
- UMR
8232, IPCM, Chimie des Polymères, CNRS, 75005 Paris, France
| | - Boris Jacquette
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Maël Le Bohec
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Olivier Colombani
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
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25
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Danial M, Perrier S, Jolliffe KA. Effect of the amino acid composition of cyclic peptides on their self-assembly in lipid bilayers. Org Biomol Chem 2015; 13:2464-73. [DOI: 10.1039/c4ob02041c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The effect of amino acid composition on the formation of transmembrane channels in lipid bilayers upon self-assembly of alt-(l,d)-α-cyclic octapeptides has been investigated.
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Affiliation(s)
- Maarten Danial
- Key Centre for Polymers & Colloids
- The University of Sydney
- School of Chemistry
- Sydney NSW 2006
- Australia
| | - Sébastien Perrier
- Key Centre for Polymers & Colloids
- The University of Sydney
- School of Chemistry
- Sydney NSW 2006
- Australia
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26
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Koh ML, Jolliffe KA, Perrier S. Hierarchical Assembly of Branched Supramolecular Polymers from (Cyclic Peptide)–Polymer Conjugates. Biomacromolecules 2014; 15:4002-11. [DOI: 10.1021/bm501062d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming Liang Koh
- Key Centre
for Polymers and Colloids, School of Chemistry, and ‡School of Chemistry, University of Sydney, Building F11, Sydney, New
South Wales 2006, Australia
| | - Katrina A. Jolliffe
- Key Centre
for Polymers and Colloids, School of Chemistry, and ‡School of Chemistry, University of Sydney, Building F11, Sydney, New
South Wales 2006, Australia
| | - Sébastien Perrier
- Key Centre
for Polymers and Colloids, School of Chemistry, and ‡School of Chemistry, University of Sydney, Building F11, Sydney, New
South Wales 2006, Australia
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27
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Blunden BM, Chapman R, Danial M, Lu H, Jolliffe KA, Perrier S, Stenzel MH. Drug conjugation to cyclic peptide-polymer self-assembling nanotubes. Chemistry 2014; 20:12745-9. [PMID: 25146103 DOI: 10.1002/chem.201403130] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Indexed: 12/26/2022]
Abstract
We show for the first time how polymeric nanotubes (NTs) based on self-assembled conjugates of polymers and cyclic peptides can be used as an efficient drug carrier. RAPTA-C, a ruthenium-based anticancer drug, was conjugated to a statistical co-polymer based on poly(2-hydroxyethyl acrylate) (pHEA) and poly(2-chloroethyl methacrylate) (pCEMA), which formed the shell of the NTs. Self-assembly into nanotubes (length 200-500 nm) led to structures exhibiting high activity against cancer cells.
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Affiliation(s)
- Bianca M Blunden
- Centre for Advanced Macromolecular Design, School of Chemistry, University of New South Wales, Sydney, NSW 2052 (Australia); Cooperative Research Centre (CRC) for Polymers, 8 Redwood Drive, Notting Hill, Victoria 3618 (Australia)
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28
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Danial M, Tran CMN, Jolliffe KA, Perrier S. Thermal gating in lipid membranes using thermoresponsive cyclic peptide-polymer conjugates. J Am Chem Soc 2014; 136:8018-26. [PMID: 24810461 DOI: 10.1021/ja5024699] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The partition and self-assembly of a new generation of cyclic peptide-polymer conjugates into well-defined phospholipid trans-bilayer channels is presented. By varying the structural parameters of the cyclic peptide-polymer conjugates through the ligation of hydrophobic and hydrophilic polymers, both the structure of the artificial channels using large unilamellar vesicle assays and the structural parameters required for phospholipid bilayer partitioning are elucidated. In addition, temperature was used as an external stimulus for the modulation of transbilayer channel formation without requiring the redesign and synthesis of the cyclic peptide core. The thermoresponsive character of the cyclic peptide-polymer conjugates lays the foundation for on-demand control over phospholipid transmembrane transport, which could lead to viable alternatives to current transport systems that traditionally rely on endocytic pathways.
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Affiliation(s)
- Maarten Danial
- Key Centre for Polymers & Colloids, ‡School of Chemistry, The University of Sydney , Building F11, Sydney NSW 2006, Australia
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29
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Ruiz L, Keten S. Directing the self-assembly of supra-biomolecular nanotubes using entropic forces. SOFT MATTER 2014; 10:851-861. [PMID: 24652037 DOI: 10.1039/c3sm52600c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Peptide self-assembly, ubiquitous in biology, is one of the most promising 'bottom-up' approaches for the generation of synthetic supramolecular architectures. However, directing the self-assembly of functional peptides into predictable ordered structures most often requires precise tuning of weak intermolecular forces. Existing strategies are generally based on specific interactions between molecular mediators that require complex chemical synthesis pathways and elaborated design rules. Here we establish a theoretical framework that delineates a generic route towards directing the self-assembly of small peptides by simply using entropic forces generated by the polymer chains attached to the peptides. We demonstrate the viability of this concept for polymer-conjugated peptide nanotubes using coarse-grained molecular dynamics (CGMD) simulations combined with theoretical calculations. We show that conjugated polymer chains create an entropic penalty due to chain confinement upon assembly, and illustrate that the self-assembly process can be directed by merely varying the degree of polymer conjugation. Specifically, the entropic penalty, and consequently, the binding energy between peptides can be greatly varied by changing the length and the number of conjugated polymers. Extending this concept for peptides with different degrees of conjugation reveals a path towards controlling the stacking sequence of binary mixtures. Remarkably, we find that a large disparity in the conjugation degree of the two peptides results in a preference towards alternating mixed sequences that minimize the entropic penalty of confinement in the thermodynamic limit. Our study explains recent experiments on polymer-peptide conjugates and sets the stage for utilizing entropic forces to guide the stacking sequence of functional macrocycles in tubular assemblies.
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Affiliation(s)
- Luis Ruiz
- Department of Civil & Environmental Engineering and Mechanical Engineering, Northwestern University, Evanston, Illinois 60208-3111, USA.
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30
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Roberts DA, Crossley MJ, Perrier S. Fluorescent bowl-shaped nanoparticles from ‘clicked’ porphyrin–polymer conjugates. Polym Chem 2014. [DOI: 10.1039/c4py00250d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and post-synthetic modification of a library of hydrophilic and hydrophobic ‘clicked’ triazole-linked porphyrin–polymer conjugates (PPCs), and their subsequent assembly into fluorescent bowl-shaped nanoparticles.
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Affiliation(s)
- Derrick A. Roberts
- Key Centre for Polymers and Colloids
- The University of Sydney
- , Australia
- School of Chemistry
- The University of Sydney
| | | | - Sébastien Perrier
- Department of Chemistry
- The University of Warwick
- Coventry, UK
- Faculty of Pharmacy and Pharmaceutical Sciences
- Monash University
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31
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Janus cyclic peptide–polymer nanotubes. Nat Commun 2013; 4:2780. [DOI: 10.1038/ncomms3780] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 10/16/2013] [Indexed: 12/23/2022] Open
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32
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Catrouillet S, Fonteneau C, Bouteiller L, Delorme N, Nicol E, Nicolai T, Pensec S, Colombani O. Competition Between Steric Hindrance and Hydrogen Bonding in the Formation of Supramolecular Bottle Brush Polymers. Macromolecules 2013. [DOI: 10.1021/ma401167n] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sylvain Catrouillet
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Cécile Fonteneau
- UPMC Univ Paris
6, UMR 7610, Chimie des Polymères, and CNRS, UMR 7610, Chimie
des Polymères, 75005 Paris, France
| | - Laurent Bouteiller
- UPMC Univ Paris
6, UMR 7610, Chimie des Polymères, and CNRS, UMR 7610, Chimie
des Polymères, 75005 Paris, France
| | - Nicolas Delorme
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Erwan Nicol
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Taco Nicolai
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Sandrine Pensec
- UPMC Univ Paris
6, UMR 7610, Chimie des Polymères, and CNRS, UMR 7610, Chimie
des Polymères, 75005 Paris, France
| | - Olivier Colombani
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
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33
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Roberts DA, Schmidt TW, Crossley MJ, Perrier S. Tunable Self-Assembly of Triazole-Linked Porphyrin-Polymer Conjugates. Chemistry 2013; 19:12759-70. [DOI: 10.1002/chem.201301133] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Indexed: 11/10/2022]
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34
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Güell I, Vilà S, Micaló L, Badosa E, Montesinos E, Planas M, Feliu L. Synthesis of Cyclic Peptidotriazoles with Activity Against Phytopathogenic Bacteria. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300215] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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35
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Chapman R, Jolliffe KA, Perrier S. Multi-shell soft nanotubes from cyclic peptide templates. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:1170-1172. [PMID: 23288610 DOI: 10.1002/adma.201204094] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Indexed: 06/01/2023]
Affiliation(s)
- Robert Chapman
- Key Centre for Polymers & Colloids, School of Chemistry, Building F11, The University of Sydney, NSW 2006, Australia
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36
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Chapman R, Warr GG, Perrier S, Jolliffe KA. Water-Soluble and pH-Responsive Polymeric Nanotubes from Cyclic Peptide Templates. Chemistry 2013; 19:1955-61. [DOI: 10.1002/chem.201203602] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Indexed: 11/08/2022]
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37
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Chapman R, Bouten PJM, Hoogenboom R, Jolliffe KA, Perrier S. Thermoresponsive cyclic peptide – poly(2-ethyl-2-oxazoline) conjugate nanotubes. Chem Commun (Camb) 2013; 49:6522-4. [DOI: 10.1039/c3cc42327a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Chapman R, Koh ML, Warr GG, Jolliffe KA, Perrier S. Structure elucidation and control of cyclic peptide-derived nanotube assemblies in solution. Chem Sci 2013. [DOI: 10.1039/c3sc00064h] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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39
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Gregory A, Stenzel MH. Complex polymer architectures via RAFT polymerization: From fundamental process to extending the scope using click chemistry and nature's building blocks. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.08.004] [Citation(s) in RCA: 377] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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40
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Poon CK, Chapman R, Jolliffe KA, Perrier S. Pushing the limits of copper mediated azide–alkyne cycloaddition (CuAAC) to conjugate polymeric chains to cyclic peptides. Polym Chem 2012. [DOI: 10.1039/c2py00510g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Chapman R, Danial M, Koh ML, Jolliffe KA, Perrier S. Design and properties of functional nanotubes from the self-assembly of cyclic peptide templates. Chem Soc Rev 2012; 41:6023-41. [DOI: 10.1039/c2cs35172b] [Citation(s) in RCA: 233] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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42
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Moraes J, Maschmeyer T, Perrier S. “Clickable” polymers via a combination of RAFT polymerization and isocyanate chemistry. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24710] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Dehn S, Chapman R, Jolliffe KA, Perrier S. Synthetic Strategies for the Design of Peptide/Polymer Conjugates. POLYM REV 2011. [DOI: 10.1080/15583724.2011.566404] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chapman R, Jolliffe KA, Perrier S. Modular design for the controlled production of polymeric nanotubes from polymer/peptide conjugates. Polym Chem 2011. [DOI: 10.1039/c1py00202c] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Whittaker AK. Everything Under the Sun: The 11th Pacific Polymer Conference. Aust J Chem 2010. [DOI: 10.1071/ch10270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The 11th Pacific Polymer Conference brought together experts in all fields of polymer science. In this issue some of the recent advances presented at the meeting are highlighted.
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