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Muthusivarajan R, Allen WJ, Pehere AD, Sokolov KV, Fuentes D. Role of alkylated residues in the tetrapeptide self-assembly-A molecular dynamics study. J Comput Chem 2020; 41:2634-2640. [PMID: 32930440 DOI: 10.1002/jcc.26419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/05/2020] [Accepted: 08/28/2020] [Indexed: 12/17/2022]
Abstract
Designing peptide sequences that self-assemble into well-defined nanostructures can open a new venue for the development of novel drug carriers and molecular contrast agents. Current approaches are often based on a linear block-design of amphiphilic peptides where a hydrophilic peptide chain is terminated by a hydrophobic tail. Here, a new template for a self-assembling tetrapeptide (YXKX, Y = tyrosine, X = alkylated tyrosine, K = lysine) is proposed with two distinct sides relative to the peptide's backbone: alkylated hydrophobic residues on one side and hydrophilic residues on the other side. Using all-atom molecular dynamics simulations, the self-assembly pathway of the tetrapeptide is analyzed for two different concentrations. At both concentrations, tetrapeptides self-assembled into a nanosphere structure. The alkylated tyrosines initialize the self-assembly process via a strong hydrophobic effect and to reduce exposure to the aqueous solvent, they formed a hydrophobic core. The hydrophilic residues occupied the surface of the self-assembled nanosphere. Ordered arrangement of tetrapeptides within the nanosphere with the backbone hydrogen bonding led to a beta sheet formation. Alkyl chain length constrained the size and shape of the nanosphere. This study provides foundation for further exploration of self-assembling structures that are based on peptides with hydrophobic and hydrophilic moieties located on the opposite sides of a peptide backbone.
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Affiliation(s)
| | - William J Allen
- Texas Advanced Computing Center, The University of Texas at Austin, Austin, Texas, USA
| | - Ashok D Pehere
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Konstantin V Sokolov
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Bioengineering, Rice University, Houston, Texas, USA.,Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas, USA
| | - David Fuentes
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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102
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Quigley E, Johnson J, Liyanage W, Nilsson BL. Impact of gelation method on thixotropic properties of phenylalanine-derived supramolecular hydrogels. SOFT MATTER 2020; 16:10158-10168. [PMID: 33035281 DOI: 10.1039/d0sm01217c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Supramolecular hydrogels formed by noncovalent self-assembly of low molecular weight (LMW) agents are promising next-generation biomaterials. Thixotropic shear response and mechanical stability are two emergent properties of hydrogels that are critical for biomedical applications including drug delivery and tissue engineering in which injection of the hydrogel will be necessary. Herein, we demonstrate that the emergent thixotropic properties of supramolecular phenylalanine-derived hydrogels are dependent on the conditions in which they are formulated. Specifically, hydrogels formed from fluorenylmethoxycarbonyl (Fmoc) modified phenylalanine derivatives, 3-fluorophenylalanine (Fmoc-3F-Phe) and pentafluorophenylalanine (Fmoc-F5-Phe), were characterized as a function of gelation conditions to examine how shear response and mechanical stability properties correlate to mode of gelation. Two distinct methods of gelation were compared. First, spontaneous self-assembly and gelation was triggered by a solvent exchange method in which a concentrated solution of the gelator in dimethylsulfoxide was diluted in water. Second, gelation was promoted by dissolution of the gelator in water at basic pH followed by gradual pH adjustment from basic to mildly acidic by the hydrolysis of glucono-delta-lactone. Hydrogels formed under solvent exchange conditions were mechanically unstable and poorly shear-responsive whereas hydrogels formed by gradual acidification were temporally stable and had highly shear-responsive viscoelastic character. These studies confirm that gelation environment and mechanism have a significant influence on the emergent properties of supramolecular hydrogels and offer insight into how gelation conditions can be used to tune hydrogel properties for specific applications.
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Affiliation(s)
- Elena Quigley
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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103
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Paul S, Kumari K, Paul S. Molecular Insight into the Effects of Enhanced Hydrophobicity on Amyloid-like Aggregation. J Phys Chem B 2020; 124:10048-10061. [PMID: 33115237 DOI: 10.1021/acs.jpcb.0c06000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Generally, hydrophobic amino acids provide hydrophobic interactions during peptide aggregation. However, besides the hydrophobic amino acids, some hydrophilic amino acids, such as glutamine, are also considered to be essential elements in many self-aggregating peptides. For example, huntingtin contains polyglutamine at its N-terminus and the yeast prion Sup35 protein has the GNNQQNY sequence, a peptide well-known for its ability for amyloid fibril formation. However, despite the frequent emergence of glutamine in self-assembling systems, the molecular mechanism of amyloid formation involving this unique amino acid has not been well documented. It is still not clear how this hydrophilic amino acid is responsible for the hydrophobic interaction in the self-association process. Therefore, in this study, we have carried out classical molecular dynamics simulations of the GNNQQNY peptide and its derivatives in pure water. We quantify the propensity for the formation of β-sheet conformation with an increasing glutamine number in the peptide sequence. In addition, we assess the importance of the hydrophobicity of the dimethanediyl group present in glutamine (as well as in glutamic acid) for the self-association of the peptides through nonpolar solvent medium simulations.
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Affiliation(s)
- Srijita Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Komal Kumari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sandip Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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104
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Mushnoori S, Lu CY, Schmidt K, Zang E, Dutt M. Peptide-based vesicles and droplets: a review. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 33:053002. [PMID: 32942264 DOI: 10.1088/1361-648x/abb995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
Peptide assembly is an increasingly important field of study due to the versatility, tunability and vast design space of amino acid based biomolecular assemblies. Peptides can be precisely engineered to possess various useful properties such as the ability to form supramolecular assemblies, desired response to pH, or thermal stability. These peptide supramolecular assemblies have diverse morphologies including vesicles, nanotubes, nanorods and ribbons. Of specific interest is the domain of engineering peptides that aggregate into spherical nanostructures due to their encapsulation properties: the ability to hold, transport and release chemical payloads in a controllable manner. This is invaluable to the fields of nanomedicine and targeted drug delivery. In this review, the state of the art in the domain of peptide-based vesicles and nanospheres is summarized. Specifically, an overview of the assembly of peptides into nanovesicles and nanospheres is provided. Both aromatic as well as aliphatic side chain amino acids are discussed. The domain of aromatic side chained amino acid residues is largely dominated by phenylalanine based peptides and variants thereof. Tyrosine also demonstrates similar aggregation properties. Both experimentally and computationally driven approaches are discussed. The domain of aliphatic amino acid residues based vesicles and droplets is broader, and details multiple amino acid residues such as alanine, valine, lysine, glycine, proline, and aspartic acid. Finally, a discussion on potential future directions is provided.
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Affiliation(s)
- Srinivas Mushnoori
- Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States of America
| | - Chien Y Lu
- Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States of America
| | - Kassandra Schmidt
- Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States of America
| | - Ethan Zang
- Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States of America
| | - Meenakshi Dutt
- Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States of America
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105
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Andrade D, Colherinhas G. The influence of polar and non-polar interactions on the self-assembly of peptide nanomembranes and their applications: An atomistic study using classical molecular dynamics. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114263] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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106
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Kaur H, Sharma P, Patel N, Pal VK, Roy S. Accessing Highly Tunable Nanostructured Hydrogels in a Short Ionic Complementary Peptide Sequence via pH Trigger. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12107-12120. [PMID: 32988205 DOI: 10.1021/acs.langmuir.0c01472] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Creating diverse nanostructures from a single gelator through modulating the self-assembly pathway has been gaining much attention in recent years. To this direction, we are exploring the effect of modulation of pH as a potential self-assembly pathway in governing the physicochemical properties of the final gel phase material. In this context, we used a classical nongelator with the ionic complementary sequence FEFK, which was rationally conjugated to an aromatic group naphthoxyacetic acid (Nap) at the N-terminal end to tune its gelation behavior. Interestingly, the presence of oppositely charged amino acids in the peptide amphiphile resulted in pH-responsive behavior, leading to the formation of hydrogels over a wide pH range (2.0-12.0); however, their structures differ significantly at the nanoscale. Thus, by simply manipulating the overall charge over the exposed surface of the peptide amphiphiles as a function of pH, we were able to access diverse self-assembled nanostructures within a single gelator domain. The charged state of the gelator at the extreme pH (2.0, 12.0) led to a thinner fiber formation, in contrast to the thicker fibers observed near the physiological pH owing to charge neutralization, thus promoting the lateral association. Such variation in molecular packing was found to be further reflected in the variable mechanical strengths of the peptide hydrogels obtained at different pH values. Moreover, the gelation of the peptide at physiological pH offers an additional advantage to explore this hydrogel as a cell culture scaffold. We anticipate that our study on controlling the self-assembly pathway of the ionic complementary peptide amphiphile can be an elegant approach to access diverse self-assembled materials, which can expand the zone of its applicability as a stimuli-responsive biomaterial.
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Affiliation(s)
- Harsimran Kaur
- Habitat Centre, Institute of Nano Science and Technology, Sector 64, Phase 10, Mohali, Punjab 160062, India
| | - Pooja Sharma
- Habitat Centre, Institute of Nano Science and Technology, Sector 64, Phase 10, Mohali, Punjab 160062, India
| | - Nidhi Patel
- Habitat Centre, Institute of Nano Science and Technology, Sector 64, Phase 10, Mohali, Punjab 160062, India
| | - Vijay Kumar Pal
- Habitat Centre, Institute of Nano Science and Technology, Sector 64, Phase 10, Mohali, Punjab 160062, India
| | - Sangita Roy
- Habitat Centre, Institute of Nano Science and Technology, Sector 64, Phase 10, Mohali, Punjab 160062, India
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107
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A6H polypeptide membranes: Molecular dynamics simulation, GIAO-DFT-NMR and TD-DFT spectroscopy analysis. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113850] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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108
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Hedegaard SF, Bruhn DS, Khandelia H, Cárdenas M, Nielsen HM. Shuffled lipidation pattern and degree of lipidation determines the membrane interaction behavior of a linear cationic membrane-active peptide. J Colloid Interface Sci 2020; 578:584-597. [DOI: 10.1016/j.jcis.2020.05.121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/28/2020] [Accepted: 05/30/2020] [Indexed: 11/30/2022]
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109
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Levin A, Hakala TA, Schnaider L, Bernardes GJL, Gazit E, Knowles TPJ. Biomimetic peptide self-assembly for functional materials. Nat Rev Chem 2020. [DOI: 10.1038/s41570-020-0215-y] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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110
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Ghosh G, Fernández G. pH- and concentration-dependent supramolecular self-assembly of a naturally occurring octapeptide. Beilstein J Org Chem 2020; 16:2017-2025. [PMID: 32874348 PMCID: PMC7445398 DOI: 10.3762/bjoc.16.168] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/31/2020] [Indexed: 12/13/2022] Open
Abstract
Peptide-based biopolymers represent highly promising biocompatible materials with multiple applications, such as tailored drug delivery, tissue engineering and regeneration, and as stimuli-responsive materials. Herein, we report the pH- and concentration-dependent self-assembly and conformational transformation of the newly synthesized octapeptide PEP-1. At pH 7.4, PEP-1 forms β-sheet-rich secondary structures into fractal-like morphologies, as verified by circular dichroism (CD), Fourier-transform infrared (FTIR) spectroscopy, thioflavin T (ThT) fluorescence spectroscopy assay, and atomic force microscopy (AFM). Upon changing the pH value (using pH 5.5 and 13.0), PEP-1 forms different types of secondary structures and resulting morphologies due to electrostatic repulsion between charged amino acids. PEP-1 can also form helical or random-coil secondary structures at a relatively low concentration. The obtained pH-sensitive self-assembly behavior of the target octapeptide is expected to contribute to the development of novel drug nanocarrier assemblies.
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Affiliation(s)
- Goutam Ghosh
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstraße 40, 48149 Münster, Germany
| | - Gustavo Fernández
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstraße 40, 48149 Münster, Germany
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111
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Liu D, Angelova A, Liu J, Garamus VM, Angelov B, Zhang X, Li Y, Feger G, Li N, Zou A. Self-assembly of mitochondria-specific peptide amphiphiles amplifying lung cancer cell death through targeting the VDAC1-hexokinase-II complex. J Mater Chem B 2020; 7:4706-4716. [PMID: 31364685 DOI: 10.1039/c9tb00629j] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Mitochondria-targeting peptides represent an emergent tool for cancer inhibition. Here supramolecular assemblies of novel amphiphilic cell-penetrating peptides for targeting cancer cell mitochondria are reported. The employed strategy aims at amplifying the apoptotic stimuli by weakening the mitochondrial VDAC1 (voltage-dependent anion channel-1)-hexokinase-II (HK-II) interaction. Peptide engineering is performed with the N-terminus of the HK-II protein, which binds to VDAC1. First, a designed positively charged segment (pKV) is anchored to the specific 15 amino acid sequence (MIASHLLAYFFTELN) to yield a cell-penetrating peptide (pHK-pKV). Second, a lipid chain (Pal) is conjugated to the N-terminus of pHK-pKV in order to enhance the intracellular delivery of the HK-II scaffold. The self-assembly properties of these two synthetic peptides are investigated by synchrotron small-angle X-ray scattering (BioSAXS) and cryogenic transmission electron (cryo-TEM) imaging, which evidence the formation of nanoassemblies of ellipsoid-like shapes. Circular dichroism (CD) spectroscopy demonstrates the induction of partial α-helical structures in the amphiphilic peptides. Confocal microscopy reveals the specific mitochondrial location of Pal-pHK-pKV assemblies in human non-small cell lung cancer (NSCLC) A549 cells. The cytotoxicity and apoptotic studies indicate the enhanced bioactivity of Pal-pHK-pKV self-assembled reservoirs, which cause massive A549 cell death with regard to pHK-pKV. Of significance, Pal-pHK-pKV treatment of non-cancerous NCM460 cells resulted in substantially lower cytotoxicity. The results demonstrate the potential of self-assembled lipo-peptide (HK-II-derived) conjugates as a promising strategy in cancer therapy.
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Affiliation(s)
- Dan Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Angelina Angelova
- Institut Galien Paris-Sud, CNRS UMR 8612, LabEx LERMIT, Univ. Paris-Sud, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Jianwen Liu
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research, D-21502 Geesthacht, Germany
| | - Borislav Angelov
- Institute of Physics, ELI Beamlines, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague, Czech Republic
| | - Xinlei Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Yawen Li
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Guillaume Feger
- Institut Galien Paris-Sud, CNRS UMR 8612, LabEx LERMIT, Univ. Paris-Sud, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Na Li
- National Center for Protein Science Shanghai and Shanghai Institute of Biochemistry and Cell Biology, Shanghai 200120, P. R. China.
| | - Aihua Zou
- Shanghai Key Laboratory of Functional Materials Chemistry, State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
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112
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Dibble JP, Troyano-Valls C, Tovar JD. A Tale of Three Hydrophobicities: Impact of Constitutional Isomerism on Nanostructure Evolution and Electronic Communication in π-Conjugated Peptides. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01492] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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113
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Tarvirdipour S, Huang X, Mihali V, Schoenenberger CA, Palivan CG. Peptide-Based Nanoassemblies in Gene Therapy and Diagnosis: Paving the Way for Clinical Application. Molecules 2020; 25:E3482. [PMID: 32751865 PMCID: PMC7435460 DOI: 10.3390/molecules25153482] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 12/26/2022] Open
Abstract
Nanotechnology approaches play an important role in developing novel and efficient carriers for biomedical applications. Peptides are particularly appealing to generate such nanocarriers because they can be rationally designed to serve as building blocks for self-assembling nanoscale structures with great potential as therapeutic or diagnostic delivery vehicles. In this review, we describe peptide-based nanoassemblies and highlight features that make them particularly attractive for the delivery of nucleic acids to host cells or improve the specificity and sensitivity of probes in diagnostic imaging. We outline the current state in the design of peptides and peptide-conjugates and the paradigms of their self-assembly into well-defined nanostructures, as well as the co-assembly of nucleic acids to form less structured nanoparticles. Various recent examples of engineered peptides and peptide-conjugates promoting self-assembly and providing the structures with wanted functionalities are presented. The advantages of peptides are not only their biocompatibility and biodegradability, but the possibility of sheer limitless combinations and modifications of amino acid residues to induce the assembly of modular, multiplexed delivery systems. Moreover, functions that nature encoded in peptides, such as their ability to target molecular recognition sites, can be emulated repeatedly in nanoassemblies. Finally, we present recent examples where self-assembled peptide-based assemblies with "smart" activity are used in vivo. Gene delivery and diagnostic imaging in mouse tumor models exemplify the great potential of peptide nanoassemblies for future clinical applications.
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Affiliation(s)
- Shabnam Tarvirdipour
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland; (S.T.); (X.H.); (V.M.)
- Department of Biosystem Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Xinan Huang
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland; (S.T.); (X.H.); (V.M.)
| | - Voichita Mihali
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland; (S.T.); (X.H.); (V.M.)
| | - Cora-Ann Schoenenberger
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland; (S.T.); (X.H.); (V.M.)
| | - Cornelia G. Palivan
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland; (S.T.); (X.H.); (V.M.)
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114
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Enriquez-Ochoa D, Robles-Ovalle P, Mayolo-Deloisa K, Brunck MEG. Immobilization of Growth Factors for Cell Therapy Manufacturing. Front Bioeng Biotechnol 2020; 8:620. [PMID: 32637403 PMCID: PMC7317031 DOI: 10.3389/fbioe.2020.00620] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022] Open
Abstract
Cell therapy products exhibit great therapeutic potential but come with a deterring price tag partly caused by their costly manufacturing processes. The development of strategies that lead to cost-effective cell production is key to expand the reach of cell therapies. Growth factors are critical culture media components required for the maintenance and differentiation of cells in culture and are widely employed in cell therapy manufacturing. However, they are expensive, and their common use in soluble form is often associated with decreased stability and bioactivity. Immobilization has emerged as a possible strategy to optimize growth factor use in cell culture. To date, several immobilization techniques have been reported for attaching growth factors onto a variety of biomaterials, but these have been focused on tissue engineering. This review briefly summarizes the current landscape of cell therapy manufacturing, before describing the types of chemistry that can be used to immobilize growth factors for cell culture. Emphasis is placed to identify strategies that could reduce growth factor usage and enhance bioactivity. Finally, we describe a case study for stem cell factor.
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Affiliation(s)
| | | | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
| | - Marion E. G. Brunck
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
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115
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Gupta S, Singh I, Sharma AK, Kumar P. Ultrashort Peptide Self-Assembly: Front-Runners to Transport Drug and Gene Cargos. Front Bioeng Biotechnol 2020; 8:504. [PMID: 32548101 PMCID: PMC7273840 DOI: 10.3389/fbioe.2020.00504] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/29/2020] [Indexed: 12/18/2022] Open
Abstract
The translational therapies to promote interaction between cell and signal come with stringent eligibility criteria. The chemically defined, hierarchically organized, and simpler yet blessed with robust intermolecular association, the peptides, are privileged to make the cut-off for sensing the cell-signal for biologics delivery and tissue engineering. The signature service and insoluble network formation of the peptide self-assemblies as hydrogels have drawn a spell of research activity among the scientists all around the globe in the past decades. The therapeutic peptide market players are anticipating promising growth opportunities due to the ample technological advancements in this field. The presence of the other organic moieties, enzyme substrates and well-established protecting groups like Fmoc and Boc etc., bring the best of both worlds. Since the large sequences of peptides severely limit the purification and their isolation, this article reviews the account of last 5 years' efforts on novel approaches for formulation and development of single molecule amino acids, ultra-short peptide self-assemblies (di- and tri- peptides only) and their derivatives as drug/gene carriers and tissue-engineering systems.
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Affiliation(s)
- Seema Gupta
- Chemistry Department, Acharya Narendra Dev College, University of Delhi, New Delhi, India
| | - Indu Singh
- Chemistry Department, Acharya Narendra Dev College, University of Delhi, New Delhi, India
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Ashwani K. Sharma
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
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116
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Pelin JNBD, Edwards-Gayle CJC, Aguilar AM, Kaur A, Hamley IW, Alves WA. Polymorphism of asymmetric catalysts based on amphiphilic lipopeptides in solution. SOFT MATTER 2020; 16:4615-4624. [PMID: 32368775 DOI: 10.1039/d0sm00245c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The self-assembly of model [P]RWG lipopeptides (P: l-proline, R: l-arginine, W: l-tryptophan, G: l-glycine), containing one or two aliphatic octadecyl (C18) chains in water and cyclohexanone/water solutions was examined. The self-assembly of mixtures of these RWG and PRWG lipopeptides was also investigated. These materials presented a similar critical aggregation concentration of ∼4.0 × 10-4 wt% and were characterized by unordered secondary structures with some β-sheet content. TEM and cryo-TEM revealed the presence of mainly nanotape structures with micelles observed for systems rich in PRWG(C18H37). Analysis of detailed SAXS form factor measurements revealed the presence of bilayers 3-4 nm thick while the PRWG(C18H37) micelles have a core radius of approximately 3 nm, and a shell thickness of 2 nm. For the cyclohexanone/water systems polymorphs containing cluster aggregates (with radius of 0.25 nm to 0.50 nm) and some elongated structures (with radius of 5.7 nm to 26.1 nm) were seen. Longer structures were formed with the increase of the proline-containing lipopeptide content. The catalytic activity of these peptides was assessed using a model nitro-aldol reaction. The concentration of water in the reaction system influenced the conversion, higher content promoted better efficiency for the water systems, but the opposite was observed for the cyclohexanone/water samples.
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Affiliation(s)
- Juliane N B D Pelin
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo André, Brazil.
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117
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Feger G, Angelov B, Angelova A. Prediction of Amphiphilic Cell-Penetrating Peptide Building Blocks from Protein-Derived Amino Acid Sequences for Engineering of Drug Delivery Nanoassemblies. J Phys Chem B 2020; 124:4069-4078. [PMID: 32337991 DOI: 10.1021/acs.jpcb.0c01618] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amphiphilic molecules, forming self-assembled nanoarchitectures, are typically composed of hydrophobic and hydrophilic domains. Peptide amphiphiles can be designed from two, three, or four building blocks imparting novel structural and functional properties and affinities for interaction with cellular membranes or intracellular organelles. Here we present a combined numerical approach to design amphiphilic peptide scaffolds that are derived from the human nuclear Ki-67 protein. Ki-67 acts, like a biosurfactant, as a steric and electrostatic charge barrier against the collapse of mitotic chromosomes. The proposed predictive design of new Ki-67 protein-derived amphiphilic amino acid sequences exploits the computational outcomes of a set of web-accessible predictors, which are based on machine learning methods. The ensemble of such artificial intelligence algorithms, involving support vector machine (SVM), random forest (RF) classifiers, and neural networks (NN), enables the nanoengineering of a broad range of innovative peptide materials for therapeutic delivery in various applications. Amphiphilic cell-penetrating peptides (CPP), derived from natural protein sequences, may spontaneously form self-assembled nanocarriers characterized by enhanced cellular uptake. Thanks to their inherent low immunogenicity, they may enable the safe delivery of therapeutic molecules across the biological barriers.
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Affiliation(s)
- Guillaume Feger
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay UMR8612, F-92296 Châtenay-Malabry, France
| | - Borislav Angelov
- Institute of Physics, ELI Beamlines, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague, Czech Republic
| | - Angelina Angelova
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay UMR8612, F-92296 Châtenay-Malabry, France
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118
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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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119
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Lei L, Li M, Wu S, Xu Z, Geng P, Tian Y, Fu Y, Zhang W. Noninvasive In Situ Ratiometric Imaging of Biometals Based on Self-Assembled Peptide Nanoribbon. Anal Chem 2020; 92:5838-5845. [PMID: 32237737 DOI: 10.1021/acs.analchem.9b05490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Development of probes for accurate sensing and imaging of biometals in situ is still a growing interest owing to their crucial roles in cellular metabolism, neurotransmission, and apoptosis. Among them, Zn2+ and Cu2+ are two important cooperative biometals closely related to Alzheimer's disease (AD). Herein, we developed a multifunctional probe based on self-assembling peptide nanoribbon for ratiometric sensing of Zn2+, Cu2+, or Zn2+ and Cu2+ simultaneously. Uniform peptide nanoribbon (AQZ@NR) was rationally designed by coassembling a Zn2+-specific ligand AQZ-modified peptide (AQZKL-7) with peptide KL-7. The nanoribbon further combined with Cu2+-sensitive near-infrared quantum dots (NIR QDs) and Alexa Fluor 633 as an inner reference molecule, which was endowed with the capability for ratiometric Zn2+ and Cu2+ imaging at the same time. The peptide-based probe exhibited good specificity to Zn2+ and Cu2+ without interference from other ions. Importantly, the nanoprobe was successfully applied for noninvasive Zn2+ and Cu2+ monitoring in both living cells and zebrafish via multicolor fluorescence imaging. This gives insights into the dynamic Zn2+ and Cu2+ distribution in an intracellular and in vivo mode, as well as understanding the neurotoxicity of high concentration of Zn2+ and Cu2+. Therefore, the self-assembled nanoprobe shows great promise in multiplexed detection of many other biometals and biomolecules, which will benefit the diagnosis and treatment of AD in clinical applications.
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Affiliation(s)
- Li Lei
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Min Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Sufen Wu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Zhiai Xu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Ping Geng
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yang Tian
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Ying Fu
- Department of Chemistry, University of Oxford, Oxford OX1 3QZ, United Kingdom
| | - Wen Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
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120
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Novelli F, Strofaldi A, De Santis S, Del Giudice A, Casciardi S, Galantini L, Morosetti S, Pavel NV, Masci G, Scipioni A. Polymorphic Self-Organization of Lauroyl Peptide in Response to pH and Concentration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3941-3951. [PMID: 32118446 DOI: 10.1021/acs.langmuir.9b02924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Amphipathic peptides are attractive building blocks for the preparation of self-assembling, bio-inspired, and stimuli responsive nanomaterials with pharmaceutical interest. The bioavailability of these materials can be improved with the insertion of d amino acid residues to avoid fast proteolysis in vivo. With this knowledge, a new lauroyl peptide consisting of a sequence of glycine, glycine, d-serine, and d-lysine was designed. In spite of its simple sequence, this lipopeptide self-assembles into spherical micelles at acid pH, when the peptide moiety adopts disordered conformations. Self-aggregates reshape toward fibers at basic pH, following the conformational transition of the peptide region from random coil to β-sheet. Finally, hydrogels are achieved at basic pH and higher concentrations. The transition from random coil to β-sheet conformation of the peptide headgroup obtained by increasing pH was monitored by circular dichroism and vibrational spectroscopy. A structural analysis, performed by combining dynamic light scattering, small-angle X-ray scattering, transmission electron microscopy, and molecular dynamic simulations, demonstrated that the transition allows the self-assemblies to remodel from spherical micelles to rodlike shapes, to long fibers with rectangular cross-section and a head-tail-tail-head structure. The viscoelastic behavior of the hydrogels formed at the highest pH was investigated by rheology measurements.
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Affiliation(s)
- Federica Novelli
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Alessandro Strofaldi
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Serena De Santis
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Alessandra Del Giudice
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance against Accidents at Work (INAIL Research), Rome 00144, Italy
| | - Luciano Galantini
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Stefano Morosetti
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Nicolae V Pavel
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Giancarlo Masci
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Anita Scipioni
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
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121
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Wagner J, Li L, Simon J, Krutzke L, Landfester K, Mailänder V, Müllen K, Ng DYW, Wu Y, Weil T. Amphiphilic Polyphenylene Dendron Conjugates for Surface Remodeling of Adenovirus 5. Angew Chem Int Ed Engl 2020; 59:5712-5720. [PMID: 31943635 PMCID: PMC7155148 DOI: 10.1002/anie.201913708] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/11/2019] [Indexed: 12/03/2022]
Abstract
Amphiphilic surface groups play an important role in many biological processes. The synthesis of amphiphilic polyphenylene dendrimer branches (dendrons), providing alternating hydrophilic and lipophilic surface groups and one reactive ethynyl group at the core is reported. The amphiphilic surface groups serve as biorecognition units that bind to the surface of adenovirus 5 (Ad5), which is a common vector in gene therapy. The Ad5/dendron complexes showed high gene transduction efficiencies in coxsackie-adenovirus receptor (CAR)-negative cells. Moreover, the dendrons offer incorporation of new functions at the dendron core by in situ post-modifications, even when bound to the Ad5 surface. Surfaces coated with these dendrons were analyzed for their blood-protein binding capacity, which is essential to predict their performance in the blood stream. A new platform for introducing bioactive groups to the Ad5 surface without chemically modifying the virus particles is provided.
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Affiliation(s)
- Jessica Wagner
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Graduate School Materials Science in MainzStaudingerweg 955128MainzGermany
| | - Longjie Li
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia MedicaSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology1037 Luoyu Road430074WuhanChina
| | - Johanna Simon
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Department of DermatologyUniversity Medical Center of the Johannes Gutenberg-University MainzLangenbeckstr. 155131MainzGermany
| | - Lea Krutzke
- University UlinicDepartment of Gene TherapyHelmholtzstr. 8/189081UlmGermany
| | | | - Volker Mailänder
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Department of DermatologyUniversity Medical Center of the Johannes Gutenberg-University MainzLangenbeckstr. 155131MainzGermany
| | - Klaus Müllen
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - David Y. W. Ng
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Yuzhou Wu
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia MedicaSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology1037 Luoyu Road430074WuhanChina
| | - Tanja Weil
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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122
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Pelin JBD, Gerbelli BB, Edwards-Gayle CJC, Aguilar AM, Castelletto V, Hamley IW, Alves WA. Amyloid Peptide Mixtures: Self-Assembly, Hydrogelation, Nematic Ordering, and Catalysts in Aldol Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2767-2774. [PMID: 32131599 PMCID: PMC7146849 DOI: 10.1021/acs.langmuir.0c00198] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/04/2020] [Indexed: 05/23/2023]
Abstract
Morphological, spectroscopic, and scattering studies of the self-assembly and aggregation of mixtures of [RF]4 and P[RF]4 peptides (where R = arginine; F = phenylalanine; P = proline), in solution and as hydrogels, were performed to obtain information about polymorphism. CD data confirmed a β-sheet secondary structure in aqueous solution, and TEM images revealed nanofibers with diameters of ∼10 nm and micrometer lengths. SAXS curves were fitted using a mass fractal-component and a long cylinder shell form factor for the liquid samples, and only a long cylinder shell form factor for the gels. Increasing the P[RF]4 content in the systems leads to a reduction in cylinder radius and core scattering density, suggesting an increase in packing of the peptide molecules; however, the opposite effect is observed for the gels, where the scattering density is higher in the shell for the systems containing higher P[RF]4 content. These compounds show potential as catalysts in the asymmetric aldol reactions, with cyclohexanone and p-nitrobenzaldehyde in aqueous media. A moderate conversion (36.9%) and a good stereoselectivity (69:31) were observed for the system containing only [RF]4. With increasing P[RF]4 content, a considerable decrease of the conversion was observed, suggesting differences in the self-assembly and packing factor. Rheological measurements were performed to determine the shear moduli for the soft gels.
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Affiliation(s)
- Juliane
N. B. D. Pelin
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Barbara B. Gerbelli
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
| | | | - Andrea M. Aguilar
- Instituto
de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, 09972-270, Brazil
| | - Valeria Castelletto
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Ian W. Hamley
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Wendel A. Alves
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
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123
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Emami S, Shayanfar A. Deep eutectic solvents for pharmaceutical formulation and drug delivery applications. Pharm Dev Technol 2020; 25:779-796. [DOI: 10.1080/10837450.2020.1735414] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shahram Emami
- Department of Pharmaceutics, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Ali Shayanfar
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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124
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Lotfallah AH, Isabel Burguete M, Alfonso I, Luis SV. Synthesis of second-generation self-assembling Gemini Amphiphilic Pseudopeptides. J Colloid Interface Sci 2020; 564:52-64. [DOI: 10.1016/j.jcis.2019.12.109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 01/11/2023]
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125
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126
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Edwards-Gayle CC, Barrett G, Roy S, Castelletto V, Seitsonen J, Ruokolainen J, Hamley IW. Selective Antibacterial Activity and Lipid Membrane Interactions of Arginine-Rich Amphiphilic Peptides. ACS APPLIED BIO MATERIALS 2020; 3:1165-1175. [PMID: 32296775 PMCID: PMC7147261 DOI: 10.1021/acsabm.9b00894] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/21/2020] [Indexed: 12/22/2022]
Abstract
The self-assembly behavior and antimicrobial activity of two designed amphiphilic peptides, R3F3 and R4F4, containing short hydrophobic phenylalanine (F) and cationic arginine (R) sequences, are investigated. The conformation of the peptides was examined using circular dichroism and FTIR spectroscopy, which show that they have a disordered secondary structure. Concentration-dependent fluorescence assays show the presence of a critical aggregation concentration (cac) for each peptide. Above the cac, small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) reveal a population of twisted tapes for R3F3 and nanosheets for R4F4. The interaction of the peptides with model bacterial membranes comprising mixtures of the lipids DPPG [1,2-dipalmitoyl-sn-glycero-3-phosphoglycerol] and DPPE [1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine], was studied using SAXS and cryogenic-TEM. Analysis of the SAXS structure factor indicates that R3F3 interacts with lipid bilayers by inducing correlation between bilayers, whereas R4F4 interacts with the bilayers causing an increase in polydispersity of the vesicle wall thickness. Both peptides break vesicles with a 1:3 DPPG:DPPE composition, which is close to the ratio of PG and PE lipids observed in the lipid membrane of Pseudomonas aeruginosa, a pathogen responsible for serious infections and which has developed antimicrobial resistant strains. Both peptides show activity against this bacterium in planktonic form. Peptide R4F4 shows particularly strong bioactivity against this microbe, with a minimum inhibitory concentration (MIC) value in the range of concentrations where the peptide is cytocompatible. It was further shown to have activity against other Pseudomonas species including the common plant pathogen Pseudomonas syringae. Finally, we show that R4F4 inhibits the development of P. aeruginosa biofilms. This was examined in detail and a proposed mechanism involving binding of the signaling molecule c-di-GMP is suggested, based on circular dichroism spectroscopy studies and Congo red assays of extracellular polysaccharides produced by the stressed bacteria. Thus, R4F4 is a promising candidate antimicrobial peptide with activity against Pseudomonas species.
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Affiliation(s)
| | - Glyn Barrett
- School
of Biological Sciences, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
| | - Shyamali Roy
- School
of Biological Sciences, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
| | - Valeria Castelletto
- School
of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
| | - Jani Seitsonen
- Nanomicroscopy
Center, Aalto University, Puumiehenkuja 2, FIN-02150 Espoo, Finland
| | - Janne Ruokolainen
- Nanomicroscopy
Center, Aalto University, Puumiehenkuja 2, FIN-02150 Espoo, Finland
| | - Ian W. Hamley
- School
of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
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127
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Wagner J, Li L, Simon J, Krutzke L, Landfester K, Mailänder V, Müllen K, Ng DYW, Wu Y, Weil T. Amphiphilic Polyphenylene Dendron Conjugates for Surface Remodeling of Adenovirus 5. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jessica Wagner
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Graduate School Materials Science in Mainz Staudingerweg 9 55128 Mainz Germany
| | - Longjie Li
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica School of Chemistry and Chemical Engineering Huazhong University of Science and Technology 1037 Luoyu Road 430074 Wuhan China
| | - Johanna Simon
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Dermatology University Medical Center of the Johannes Gutenberg-University Mainz Langenbeckstr. 1 55131 Mainz Germany
| | - Lea Krutzke
- University Ulinic Department of Gene Therapy Helmholtzstr. 8/1 89081 Ulm Germany
| | | | - Volker Mailänder
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Dermatology University Medical Center of the Johannes Gutenberg-University Mainz Langenbeckstr. 1 55131 Mainz Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - David Y. W. Ng
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Yuzhou Wu
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica School of Chemistry and Chemical Engineering Huazhong University of Science and Technology 1037 Luoyu Road 430074 Wuhan China
| | - Tanja Weil
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
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128
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Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry. Life (Basel) 2020; 10:life10010006. [PMID: 31963928 PMCID: PMC7175156 DOI: 10.3390/life10010006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/22/2019] [Accepted: 01/10/2020] [Indexed: 12/14/2022] Open
Abstract
A variety of organic chemicals were likely available on prebiotic Earth. These derived from diverse processes including atmospheric and geochemical synthesis and extraterrestrial input, and were delivered to environments including oceans, lakes, and subaerial hot springs. Prebiotic chemistry generates both molecules used by modern organisms, such as proteinaceous amino acids, as well as many molecule types not used in biochemistry. As prebiotic chemical diversity was likely high, and the core of biochemistry uses a rather small set of common building blocks, the majority of prebiotically available organic compounds may not have been those used in modern biochemistry. Chemical evolution was unlikely to have been able to discriminate which molecules would eventually be used in biology, and instead, interactions among compounds were governed simply by abundance and chemical reactivity. Previous work has shown that likely prebiotically available α-hydroxy acids can combinatorially polymerize into polyesters that self-assemble to create new phases which are able to compartmentalize other molecule types. The unexpectedly rich complexity of hydroxy acid chemistry and the likely enormous structural diversity of prebiotic organic chemistry suggests chemical evolution could have been heavily influenced by molecules not used in contemporary biochemistry, and that there is a considerable amount of prebiotic chemistry which remains unexplored.
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129
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Guo RC, Zhang XH, Ji L, Wei ZJ, Duan ZY, Qiao ZY, Wang H. Recent progress of therapeutic peptide based nanomaterials: from synthesis and self-assembly to cancer treatment. Biomater Sci 2020; 8:6175-6189. [DOI: 10.1039/d0bm01358g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review has described the synthesis, self-assembly and the anti-cancer application of therapeutic peptides and their conjugates, particularly polymer–peptide conjugates (PPCs).
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Affiliation(s)
- Ruo-Chen Guo
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin
- China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
| | - Xue-Hao Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology (NCNST)
- Center of Materials Science and Optoelectronics Engineering
- University of Chinese Academy of Sciences
| | - Lei Ji
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology (NCNST)
- Center of Materials Science and Optoelectronics Engineering
- University of Chinese Academy of Sciences
| | - Zi-Jin Wei
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology (NCNST)
- Center of Materials Science and Optoelectronics Engineering
- University of Chinese Academy of Sciences
| | - Zhong-Yu Duan
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin
- China
| | - Zeng-Ying Qiao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology (NCNST)
- Center of Materials Science and Optoelectronics Engineering
- University of Chinese Academy of Sciences
| | - Hao Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology (NCNST)
- Center of Materials Science and Optoelectronics Engineering
- University of Chinese Academy of Sciences
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130
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Kim H, Kim I, Hwang JH, Park J, Ahn H, Han EH, Lee E. Glutathione-adaptive peptide amphiphile vesicles rationally designed using positionable disulfide-bridges for effective drug transport. Polym Chem 2020. [DOI: 10.1039/d0py00504e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The drug loading/releasing capability of GSH-responsive nanovesicles self-assembled from peptide amphiphiles was controlled by varying the location and number of disulfide-linkages in the peptide for the selective drug-release into tumor cells.
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Affiliation(s)
- Hayeon Kim
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Republic of Korea
| | - Inhye Kim
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Republic of Korea
| | - Jun Ho Hwang
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Republic of Korea
| | - Jaehyun Park
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Republic of Korea
| | - Hyungju Ahn
- Pohang Accelerator Laboratory
- Pohang University of Science and Technology
- Pohang 37673
- Republic of Korea
| | - Eun Hee Han
- Division of Bioconvergence Analysis
- Korea Basic Science Institute (KBSI)
- Cheongju 28119
- Republic of Korea
| | - Eunji Lee
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Republic of Korea
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131
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Singh R, Mishra NK, Singh N, Rawal P, Gupta P, Joshi KB. Transition metal ions induced secondary structural transformation in a hydrophobized short peptide amphiphile. NEW J CHEM 2020. [DOI: 10.1039/d0nj01501f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Transition metal ions mediate the secondary structural transformation of hydrophobized sPA and can be applied to the design and development of stimuli-responsive nanomaterials.
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Affiliation(s)
- Ramesh Singh
- Department of Chemistry
- School of Chemical Science and Technology
- Dr Harisingh Gour Central University
- Sagar
- India
| | | | - Narendra Singh
- Department of Chemistry
- Indian Institute of Technology
- Kanpur
- India
| | - Parveen Rawal
- Department of Chemistry
- Indian Institute of Technology
- Roorkee 247667
- India
| | - Puneet Gupta
- Department of Chemistry
- Indian Institute of Technology
- Roorkee 247667
- India
| | - Khashti Ballabh Joshi
- Department of Chemistry
- School of Chemical Science and Technology
- Dr Harisingh Gour Central University
- Sagar
- India
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132
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Abstract
Supramolecular polymers are non-covalent assemblies of unimeric building blocks connected by secondary interactions and hold great promises due to their dynamic nature.
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Affiliation(s)
| | | | - Sebastien Perrier
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
- Faculty of Pharmacy and Pharmaceutical Sciences
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133
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Thurston BA, Shapera EP, Tovar JD, Schleife A, Ferguson AL. Revealing the Sequence-Structure-Electronic Property Relation of Self-Assembling π-Conjugated Oligopeptides by Molecular and Quantum Mechanical Modeling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15221-15231. [PMID: 31657579 DOI: 10.1021/acs.langmuir.9b02593] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-assembled nanoaggregates of π-conjugated synthetic peptides present a biocompatible and highly tunable alternative to silicon-based optical and electronic materials. Understanding the relationship between structural morphology and electronic properties of these assemblies is critical for understanding and controlling their mechanical, optical, and electronic responses. In this work, we combine all-atom classical molecular simulations with quantum mechanical electronic structure calculations to ascertain the sequence-structure-electronic property relationship within a family of Asp-X-X-quaterthiophene-X-X-Asp (DXX-OT4-XXD) oligopeptides in which X is one of the five amino acids {Ala, Phe, Gly, Ile, Val} ({A, F, G, I, V}). Molecular dynamics simulations reveal that smaller amino acid substituents (A, G) favor linear stacking within a peptide dimer, whereas larger groups (F, I, V) induce larger twist angles between the peptides. Density functional theory calculations on the dimer show the absorption spectrum to be dominated by transitions between carbon and sulfur p orbitals. Although the absorption spectrum is largely insensitive to the relative twist angle, the highest occupied molecular orbital strongly localizes onto one molecule within the dimer at large twist angles, impeding the efficiency of transport between molecules. Our results provide a fundamental understanding of the relation between peptide orientation and electronic structure and offer design precepts for rational engineering of these systems.
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Affiliation(s)
- Bryce A Thurston
- Center for Integrated Nanotechnologies , Sandia National Laboratories , P.O. Box 5800, Albuquerque , New Mexico 87185 , United States
| | - Ethan P Shapera
- Department of Physics , University of Illinois at Urbana-Champaign , 1110 West Green Street , Urbana , Illinois 61801 , United States
| | - John D Tovar
- Department of Chemistry, Krieger School of Arts and Sciences , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
- Institute for NanoBioTechnology , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
- Department of Materials Science and Engineering, Whiting School of Engineering , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - André Schleife
- Department of Materials Science and Engineering , 1304 West Green Street , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Materials Research Laboratory , University of Illinois at Urbana-Champaign , 104 South Goodwin Avenue , Urbana , Illinois 61801 , United States
- National Center for Supercomputing Applications , University of Illinois at Urbana-Champaign , 1205 West Clark Street , Urbana , Illinois 61801 , United States
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering , University of Chicago , 5640 South Ellis Avenue , Chicago , Illinois 60637 , United States
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134
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Manandhar A, Chakraborty K, Tang PK, Kang M, Zhang P, Cui H, Loverde SM. Rational Coarse-Grained Molecular Dynamics Simulations of Supramolecular Anticancer Nanotubes. J Phys Chem B 2019; 123:10582-10593. [DOI: 10.1021/acs.jpcb.9b07417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anjela Manandhar
- Department of Chemistry, College of Staten Island, City University of New York, New York 10314, United States
- Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York 10016, United States
| | - Kaushik Chakraborty
- Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York 10016, United States
| | - Phu K. Tang
- Department of Chemistry, College of Staten Island, City University of New York, New York 10314, United States
- Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York 10016, United States
| | - Myungshim Kang
- Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York 10016, United States
| | - Pengcheng Zhang
- Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Sharon M. Loverde
- Department of Chemistry, College of Staten Island, City University of New York, New York 10314, United States
- Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York 10016, United States
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135
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Ye WH, Yeghiasarian L, Cutler CW, Bergeron BE, Sidow S, Xu HHK, Niu LN, Ma JZ, Tay FR. Comparison of the use of d-enantiomeric and l-enantiomeric antimicrobial peptides incorporated in a calcium-chelating irrigant against Enterococcus faecalis root canal wall biofilms. J Dent 2019; 91:103231. [PMID: 31712128 DOI: 10.1016/j.jdent.2019.103231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES To compare the anti-biofilm efficacy of two antimicrobial peptides (AMPs), 1018 and DJK-5, in disrupting canal wall biofilms in the isthmus, canal and dentinal tubules of single-rooted maxillary premolars. METHODS Enterococcus faecalis single-species biofilms were formed in-situ in the root canal system of the premolars (n = 91). Confocal laser scanning microscopy, bacterial sampling, colony-forming unit counting, XTT assay, lactate dehydrogenase assay and phenol-sulphuric acid method were used to identify the anti-biofilm efficacy of both AMPs and their influence on bacterial metabolic activity. RESULTS Both AMPs disrupted in-situ E. faecalis biofilms and altered their metabolic activity. At 20 μg/mL, the d-enantiomeric AMP DJK-5 killed 55.5 %, 57.3 % and 55.8 % of biofilm bacteria in the isthmus, canal and dentinal tubules, respectively, in 1 min. In contrast, the l-enantiomeric AMP 1018 only eradicated 25.6 %, 25.5 % and 27.5 % of biofilm bacteria in the isthmus, canal and dentinal tubules, respectively, within the same time. Anti-biofilm efficacy of the root canal irrigants tested were in the order: 6 % NaOCl > 20 μg/mL DJK-5 > 10 μg/mL DJK-5 > 20 μg/mL 1018 > 10 μg/mL 1018 > 0.9 % NaCl. CONCLUSIONS The present results are confirmatory of previous studies, in that d-enantiomeric AMPs exhibit more potent antibacterial properties than l-enantiomeric AMPs against E. faecalis biofilms within the canal space. Nevertheless, the potency of both AMPs are concentration-dependent. Incorporation of these agents into EDTA, a non-antibacterial calcium-chelating irrigant for removal of the inorganic component of the canal space debris, does not reduce the efficacy of either AMP. CLINICAL SIGNIFICANCE The present study provides the proof of concept that incorporation of an antimicrobial peptide into a calcium-chelating root canal irrigant enhances the disinfection of intratubular single-species biofilms during smear layer and smear plug removal.
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Affiliation(s)
- Wei-Hu Ye
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | | | | | - Brian E Bergeron
- The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - Stephanie Sidow
- The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Li-Na Niu
- The Dental College of Georgia, Augusta University, Augusta, GA, USA; State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, China; The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China.
| | - Jing-Zhi Ma
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Franklin R Tay
- The Dental College of Georgia, Augusta University, Augusta, GA, USA.
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136
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Shi Y, Ferreira DS, Banerjee J, Pickford AR, Azevedo HS. Tuning the matrix metalloproteinase-1 degradability of peptide amphiphile nanofibers through supramolecular engineering. Biomater Sci 2019; 7:5132-5142. [PMID: 31576824 DOI: 10.1039/c9bm00949c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Matrix metalloproteinases (MMPs) are a family of endopeptidases capable of degrading extracellular matrix (ECM) components. They are known to play crucial roles during the ECM turnover in both physiological and pathological processes. As such, their activities are utilized as biological stimuli to engineer MMP-responsive peptide-based biomaterials such as self-assembled peptide amphiphiles (PAs). Although previous studies have unveiled the role of PAs secondary structure on the mechanical and biological properties of their self-assembled nanostructures, the effect on the degradability of their assemblies by MMP-1 has not been reported. Herein, a series of PAs are designed and synthesized, all comprising the same MMP-1 cleavable domain but with variable structural segments, to decipher the role of PA's secondary structure on the MMP-1 degradability of their assemblies. This study reveals a correlation between the MMP-1 degradation efficiency and the β-sheet content of the self-assembled PA nanofibers, with the MMP-1 cleavability being significantly reduced in the PA nanofibers with stronger β-sheet characteristics. These results shed light on the role of supramolecular cohesion in PA assemblies on their hydrolysis by MMP-1 and open up the possibility to control the degradation rate of PA-based nanostructures by MMP-1 through tweaking their molecular sequences.
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Affiliation(s)
- Yejiao Shi
- School of Engineering and Materials Science & Institute of Bioengineering, Queen Mary, University of London, E1 4NS, UK.
| | - Daniela S Ferreira
- School of Engineering and Materials Science & Institute of Bioengineering, Queen Mary, University of London, E1 4NS, UK.
| | - Jayati Banerjee
- School of Engineering and Materials Science & Institute of Bioengineering, Queen Mary, University of London, E1 4NS, UK.
| | - Andrew R Pickford
- Centre for Enzyme Innovation & School of Biological Sciences, University of Portsmouth, PO1 2DY, UK
| | - Helena S Azevedo
- School of Engineering and Materials Science & Institute of Bioengineering, Queen Mary, University of London, E1 4NS, UK.
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137
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Castelletto V, Edwards-Gayle CJC, Greco F, Hamley IW, Seitsonen J, Ruokolainen J. Self-Assembly, Tunable Hydrogel Properties, and Selective Anti-Cancer Activity of a Carnosine-Derived Lipidated Peptide. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33573-33580. [PMID: 31407889 PMCID: PMC7007010 DOI: 10.1021/acsami.9b09065] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A novel lipopeptide C16KTTβAH was designed that incorporates the KTT tripeptide sequence from "Matrixyl" lipopeptides along with the bioactive βAH (β-alanine-histidine) carnosine dipeptide motif, attached to a C16 hexadecyl lipid chain. We show that this peptide amphiphile self-assembles above a critical aggregation concentration into β-sheet nanotape structures in water, phosphate-buffered saline (PBS), and cell culture media. Nanotape bundle structures were imaged in PBS, the bundling resulting from nanotape associations because of charge screening in the buffer. In addition, hydrogelation was observed and the gel modulus was measured in different aqueous media conditions, revealing tunable hydrogel modulus depending on the concentration and nature of the aqueous phase. Stiff hydrogels were observed by direct dissolution in PBS, and it was also possible to prepare hydrogels with unprecedented high modulus from low-concentration solutions by injection of dilute aqueous solutions into PBS. These hydrogels have exceptional stiffness compared to previously reported β-sheet peptide-based materials. In addition, macroscopic soft threads which contain aligned nematic structures can be drawn from concentrated aqueous solutions of the lipopeptides. The anti-cancer activity of the lipopeptide was assessed using two model breast cancer cell lines compared to two fibroblast cell line controls. These studies revealed selective concentration-dependent cytotoxicity against MCF-7 cancer cells in the mM concentration range. It was shown that this occurs below the onset of lipopeptide aggregation (i.e., below the critical aggregation concentration), indicating that the cytotoxicity is not related to self-assembly but is an intrinsic property of C16KTTβAH. Finally, hydrogels of this lipopeptide demonstrated slow uptake and release of the Congo red dye, a model diagnostic compound.
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Affiliation(s)
- Valeria Castelletto
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Reading RG6 6AD, U.K.
- E-mail: (V.C.)
| | | | - Francesca Greco
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Reading RG6 6AD, U.K.
| | - Ian W. Hamley
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Reading RG6 6AD, U.K.
- E-mail: (I.W.H.)
| | - Jani Seitsonen
- Nanomicroscopy Center, Aalto
University, Puumiehenkuja
2, Espoo FIN-02150, Finland
| | - Janne Ruokolainen
- Nanomicroscopy Center, Aalto
University, Puumiehenkuja
2, Espoo FIN-02150, Finland
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138
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Ihsan AB, Nargis M, Koyama Y. Effects of the Hydrophilic-Lipophilic Balance of Alternating Peptides on Self-Assembly and Thermo-Responsive Behaviors. Int J Mol Sci 2019; 20:ijms20184604. [PMID: 31533361 PMCID: PMC6770757 DOI: 10.3390/ijms20184604] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/11/2019] [Indexed: 02/06/2023] Open
Abstract
A series of N-substituted poly(Gly–alter–Val) peptides were successfully synthesized for the systematic evaluation of the micellization behavior of alternating peptides. Three-component polymerization employing an aldehyde, a primary ammonium chloride, and potassium isocyanoacetate afforded four alternating peptides in excellent yields. We investigated the dependence of the hydrophilic–lipophilic balance of alternating peptides on the micellization behavior. All the aqueous solutions of alternating peptides exhibited upper critical solution temperature (UCST) behaviors, strongly indicating that the alternating binary pattern would mainly contribute to the UCST behaviors. The cloud points of alternating peptides shifted to higher temperatures as the side chains became more hydrophilic, which is opposite to the trend of typical surfactants. Such unusual micellization behaviors appeared to be dependent on the quasi-stable structure of single polymer chains formed in water.
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Affiliation(s)
- Abu Bin Ihsan
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
| | - Mahmuda Nargis
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
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139
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Dutta S, Patra P, Chakrabarti J. Self-assembly in amphiphilic macromolecules with solvent exposed hydrophobic moieties. Biopolymers 2019; 110:e23330. [PMID: 31498431 DOI: 10.1002/bip.23330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/03/2019] [Accepted: 08/19/2019] [Indexed: 11/12/2022]
Abstract
Self-assembly by amphiphilic molecules with solvent exposed hydrophobic groups are relevant in biomolecular systems as well as in technological applications. Here we study such self-assembly in these systems using a model system of spherical particles having charge at core but solvent repelling surface, using Monte-Carlo simulations and mean field treatment. We find that solvophobicity mediated attraction leads aggregation, while electrostatic repulsions control stability of finite clusters. The aggregation threshold relates the parameters of two interactions through an algebraic dependence. The study also qualitatively explains experimental observations on aggregation of misfolded proteins and can be useful guide to tune stability of nm sized self-assembly in systems with exposed hydrophobic groups.
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Affiliation(s)
- Sutapa Dutta
- Department of Chemical, Biological and Macro-Molecular Sciences, S. N. Bose National Centre for Basic Sciences, Sector III, Block JD, Salt Lake, Kolkata, India
| | - Piya Patra
- Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata, Nadia, West Bengal, India
| | - Jaydeb Chakrabarti
- Department of Chemical, Biological and Macro-Molecular Sciences, S. N. Bose National Centre for Basic Sciences, Sector III, Block JD, Salt Lake, Kolkata, India.,Unit of Nanoscience and Technology-II and The Thematic Unit of Excellence on Computational Materials Science, S. N. Bose National Centre for Basic Sciences, Sector III, Block JD, Salt Lake, Kolkata, India
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140
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Liu H, Zhao X, Liang S, Fan L, Li Z, Zhang Y, Ni J. Amphiphilic Endomorphin-1 Derivative Functions as Self-assembling Nanomedicine for Effective Brain Delivery. Chem Pharm Bull (Tokyo) 2019; 67:977-984. [DOI: 10.1248/cpb.c19-00250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hui Liu
- School of Pharmacy, Lanzhou University
| | | | | | - Linlan Fan
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical, Lanzhou University
| | | | - Yun Zhang
- School of Pharmacy, Lanzhou University
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141
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Zottig X, Al-Halifa S, Babych M, Quittot N, Archambault D, Bourgault S. Guiding the Morphology of Amyloid Assemblies by Electrostatic Capping: from Polymorphic Twisted Fibrils to Uniform Nanorods. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901806. [PMID: 31268238 DOI: 10.1002/smll.201901806] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/31/2019] [Indexed: 06/09/2023]
Abstract
Peptides that self-assemble into cross-β-sheet amyloid structures constitute promising building blocks to construct highly ordered proteinaceous materials and nanoparticles. Nevertheless, the intrinsic polymorphism of amyloids and the difficulty of controlling self-assembly currently limit their usage. In this study, the effect of electrostatic interactions on the supramolecular organization of peptide assemblies is investigated to gain insights into the structural basis of the morphological diversities of amyloids. Different charged capping units are introduced at the N-terminus of a potent β-sheet-forming sequence derived from the 20-29 segment of islet amyloid polypeptide, known to self-assemble into polymorphic fibrils. By tuning the charge and the electrostatic strength, different mesoscopic morphologies are obtained, including nanorods, rope-like fibrils, and twisted ribbons. Particularly, the addition of positive capping units leads to the formation of uniform rod-like assemblies, with lengths that can be modulated by the charge number. It is proposed that electrostatic repulsions between N-terminal positive charges hinder β-sheet tape twisting, leading to a unique control over the size of these cytocompatible nanorods by protofilament growth frustration. This study reveals the high susceptibility of amyloid formation to subtle chemical modifications and opens to promising strategies to control the final architecture of proteinaceous assemblies from the peptide sequence.
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Affiliation(s)
- Ximena Zottig
- Chemistry Department, Université du Québec à Montréal, Montreal, Québec, H2L 2C4, Canada
- Quebec Network for Research on Protein Function, Engineering and Applications PROTEO, Québec, G1V 0A6, Canada
| | - Soultan Al-Halifa
- Chemistry Department, Université du Québec à Montréal, Montreal, Québec, H2L 2C4, Canada
- Quebec Network for Research on Protein Function, Engineering and Applications PROTEO, Québec, G1V 0A6, Canada
| | - Margaryta Babych
- Chemistry Department, Université du Québec à Montréal, Montreal, Québec, H2L 2C4, Canada
- Quebec Network for Research on Protein Function, Engineering and Applications PROTEO, Québec, G1V 0A6, Canada
| | - Noé Quittot
- Chemistry Department, Université du Québec à Montréal, Montreal, Québec, H2L 2C4, Canada
- Quebec Network for Research on Protein Function, Engineering and Applications PROTEO, Québec, G1V 0A6, Canada
| | - Denis Archambault
- Department of Biological Sciences, Université du Québec à Montréal, Montreal, Québec, H2X 1Y4, Canada
- Swine and Poultry Infectious Diseases Research Center, CRIPA, Québec, J2S 2M2, Canada
| | - Steve Bourgault
- Chemistry Department, Université du Québec à Montréal, Montreal, Québec, H2L 2C4, Canada
- Quebec Network for Research on Protein Function, Engineering and Applications PROTEO, Québec, G1V 0A6, Canada
- Swine and Poultry Infectious Diseases Research Center, CRIPA, Québec, J2S 2M2, Canada
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142
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Lei J, Sun L, Huang S, Zhu C, Li P, He J, Mackey V, Coy DH, He Q. The antimicrobial peptides and their potential clinical applications. Am J Transl Res 2019; 11:3919-3931. [PMID: 31396309 PMCID: PMC6684887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 05/09/2019] [Indexed: 06/10/2023]
Abstract
Nowadays, the bacterial drug resistance leads to serious healthy problem worldwide due to the long-term use and the abuse of traditional antibiotics result in drug resistance of bacteria. Finding a new antibiotic is becoming more and more difficult. Antimicrobial peptides (AMPs) are the host defense peptides with most of them being the cationic (positively charged) and amphiphilic (hydrophilic and hydrophobic) α-helical peptide molecules. The membrane permeability is mostly recognized as the well-accepted mechanism to describe the action of cationic AMPs. These cationic AMPs can bind and interact with the negatively charged bacterial cell membranes, leading to the change of the electrochemical potential on bacterial cell membranes, inducing cell membrane damage and the permeation of larger molecules such as proteins, destroying cell morphology and membranes and eventually resulting in cell death. These AMPs have been demonstrated to have their own advantages over the traditional antibiotics with a broad-spectrum of antimicrobial activities including anti-bacteria, anti-fungi, anti-viruses, and anti-cancers, and even overcome bacterial drug-resistance. The natural AMPs exist in a variety of organisms and are not stable with a short half-life, more or less toxic side effects, and particularly may have severe hemolytic activity. To open the clinical applications, it is necessary and important to develop the synthetic and long-lasting AMP analogs that overcome the disadvantages of their natural peptides and the potential problems for the drug candidates.
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Affiliation(s)
- Jun Lei
- The Third Xiangya HospitaI of Central South UniversityChangsha, Hunan, China
| | - Lichun Sun
- The Third Xiangya HospitaI of Central South UniversityChangsha, Hunan, China
- Shenzhen Academy of Peptide Targeting Technology at Pingshan and Shenzhen Tyercan Bio-pharm Co., Ltd.Shenzhen, Guangdong, China
- Department of Medicine, School of Medicine, Tulane University Health Sciences CenterNew Orleans, LA 70112, USA
| | - Siyu Huang
- Sino-US Innovative Bio-Medical Center and Hunan Beautide PharmaceuticalsXiangtan, Hunan, China
| | - Chenhong Zhu
- Sino-US Innovative Bio-Medical Center and Hunan Beautide PharmaceuticalsXiangtan, Hunan, China
| | - Ping Li
- Sino-US Innovative Bio-Medical Center and Hunan Beautide PharmaceuticalsXiangtan, Hunan, China
| | - Jun He
- Sino-US Innovative Bio-Medical Center and Hunan Beautide PharmaceuticalsXiangtan, Hunan, China
| | - Vienna Mackey
- Department of Medicine, School of Medicine, Tulane University Health Sciences CenterNew Orleans, LA 70112, USA
| | - David H Coy
- Department of Medicine, School of Medicine, Tulane University Health Sciences CenterNew Orleans, LA 70112, USA
| | - Quanyong He
- The Third Xiangya HospitaI of Central South UniversityChangsha, Hunan, China
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143
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Castelletto V, Edwards-Gayle CJC, Hamley IW, Pelin JNBD, Alves WA, Aguilar AM, Seitsonen J, Ruokolainen J. Self-Assembly of a Catalytically Active Lipopeptide and Its Incorporation into Cubosomes. ACS APPLIED BIO MATERIALS 2019; 2:3639-3647. [PMID: 32064461 PMCID: PMC7011704 DOI: 10.1021/acsabm.9b00489] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/03/2019] [Indexed: 11/29/2022]
Abstract
The self-assembly and biocatalytic activity of the proline-functionalized lipopeptide PRW-NH-C16 are examined and compared to that of the related PRW-O-C16 lipopeptide, which differs in having an ester linker between the lipid chain and tripeptide headgroup instead of an amide linker. Lipopeptide PRW-NH-C16 self-assembles into spherical micelles above a critical aggregation concentration, similar to the behavior of PRW-O-C16 reported previously [B. M. Soares et al. Phys. Chem. Chem. Phys., 2017, 19, 1181-1189]. However, PRW-NH-C16 shows an improved catalytic activity in a model aldol reaction. In addition, we explore the incorporation of the biocatalytic lipopeptide into lipid cubosomes. SAXS shows that increasing lipopeptide concentration leads to an expansion of the monoolein cubosome lattice spacing and a loss of long-range cubic order as the lipopeptide is encapsulated in the cubosomes. At higher loadings of lipopeptide, reduced cubosome formation is observed at the expense of vesicle formation. Our results show that the peptide-lipid chain linker does not influence self-assembly but does impart an improved biocatalytic activity. Furthermore, we show that lipopeptides can be incorporated into lipid cubosomes, leading to restructuring into vesicles at high loadings. These findings point the way toward the future development of bioactive lipopeptide assemblies and slow release cubosome-based delivery systems.
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Affiliation(s)
- Valeria Castelletto
- Department of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | | | - Ian W Hamley
- Department of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Juliane N B D Pelin
- Centro de Ciências Naturais e Humanas, Federal do ABC, Santo André 09210-580, Brazil
| | - Wendel A Alves
- Centro de Ciências Naturais e Humanas, Federal do ABC, Santo André 09210-580, Brazil
| | - Andrea M Aguilar
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972-270, Brazil
| | - Jani Seitsonen
- Nanomicroscopy Center, Aalto University, Puumiehenkuja 2, Espoo FIN-02150, Finland
| | - Janne Ruokolainen
- Nanomicroscopy Center, Aalto University, Puumiehenkuja 2, Espoo FIN-02150, Finland
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144
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Pieszka M, Sobota AM, Gačanin J, Weil T, Ng DYW. Orthogonally Stimulated Assembly/Disassembly of Depsipeptides by Rational Chemical Design. Chembiochem 2019; 20:1376-1381. [PMID: 30690852 PMCID: PMC6593846 DOI: 10.1002/cbic.201800781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 12/13/2022]
Abstract
Controlling the assembly and disassembly of cross-β-sheet-forming peptides is one of the predominant challenges for this class of supramolecular material. As they constitute a continuously propagating material, every atomic change can be exploited to bring about distinct responses at the architectural level. We report herein that, by using rational chemical design, serine and methionine can both be used as orthogonal chemical triggers to signal assembly/disassembly through their corresponding stimuli. Serine is used to construct an ester-bond oligopeptide that can undergo O,N-acyl rearrangement, whereas methionine is sensitive to oxidation by H2 O2 . Using the example peptide sequence, KIKISQINM, we demonstrate that assembly and disassembly can be independently controlled on demand.
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Affiliation(s)
- Michaela Pieszka
- Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee-1189081UlmGermany
| | - Adriana Maria Sobota
- Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Jasmina Gačanin
- Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee-1189081UlmGermany
| | - Tanja Weil
- Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee-1189081UlmGermany
| | - David Y. W. Ng
- Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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145
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Zhu H, Wang H, Shi B, Shangguan L, Tong W, Yu G, Mao Z, Huang F. Supramolecular peptide constructed by molecular Lego allowing programmable self-assembly for photodynamic therapy. Nat Commun 2019; 10:2412. [PMID: 31160596 PMCID: PMC6546686 DOI: 10.1038/s41467-019-10385-9] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 05/10/2019] [Indexed: 11/22/2022] Open
Abstract
Peptide self-assemblies with multiple nanostructures have great potentials in functional biomaterials, and yet the tedious and costly covalent peptide modification and the lack of facile controllability on self-assembly morphology retard the peptide-related exploration. Here we report a simple approach to fabricate a supramolecular peptide that shows programmable self-assembly with multiple morphologies and application in photodynamic therapy. Pillar[5]arene-based host-guest recognition is used to construct a supramolecular peptide, which simplify the peptide modification and promote the controllability of the self-assembly behavior. Due to the ERGDS sequences on the exterior surfaces and hydrophobic cores of self-assemblies, the nanoparticles formed from the supramolecular peptide are suitable vehicles to encapsulate a photosensitizer for photodynamic therapy. In vitro and in vivo studies demonstrate that the inherent targeting capability and supramolecular strategy greatly boost its photodynamic therapeutic efficiency. This supramolecular peptide holds promising potentials in precise cancer therapy and perspectives for the peptide modification.
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Affiliation(s)
- Huangtianzhi Zhu
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, 310027, Hangzhou, P. R. China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Huanhuan Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Bingbing Shi
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Liqing Shangguan
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Weijun Tong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Guocan Yu
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, 310027, Hangzhou, P. R. China.
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China.
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, 310027, Hangzhou, P. R. China.
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146
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Shuai J, Guan F, He B, Hu J, Li Y, He D, Hu J. Self-Assembled Nanoparticles of Symmetrical Cationic Peptide Against Citrus Pathogenic Bacteria. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5720-5727. [PMID: 31046262 DOI: 10.1021/acs.jafc.9b00820] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The increasing drug resistance of phytopathogenic bacteria to conventional bactericides has driven the necessity for exploring new alternatives with a lower tendency to develop bacterial resistance. Here, we report a novel cationic symmetrical peptide P5VP5 (Ac- R+ LI R+ K+ V K+ R+ IL R+ -NH2 that enables self-assembly to form nanoparticles with excellent thermal stability. An in vitro assay showed that P5VP5 nanoparticles exhibited excellent antibacterial activity against Xanthomonas axonopodis pv citri with a MIC value of 20 μM. Meanwhile, under an in planta condition, treatment with peptide nanoparticles demonstrated the highest ability to reduce the development of citrus canker lesions in leaves. Moreover, the nanoparticles could destroy the biofilm formation, damage the cell membranes, and affect the cell membrane permeability, ultimately leading to the death of bacteria. Taken together, these nanoparticles are a promising antibacterial agent that can be used to control citrus canker and other plant diseases caused by bacteria.
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Affiliation(s)
- Jianbo Shuai
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Fuyi Guan
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Bi He
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Jianqing Hu
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Yan Li
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Daohang He
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Jianfeng Hu
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
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147
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Edwards-Gayle CC, Castelletto V, Hamley IW, Barrett G, Greco F, Hermida-Merino D, Rambo RP, Seitsonen J, Ruokolainen J. Self-Assembly, Antimicrobial Activity, and Membrane Interactions of Arginine-Capped Peptide Bola-Amphiphiles. ACS APPLIED BIO MATERIALS 2019; 2:2208-2218. [PMID: 31157325 PMCID: PMC6537463 DOI: 10.1021/acsabm.9b00172] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 04/16/2019] [Indexed: 12/27/2022]
Abstract
The self-assembly and antimicrobial activity of two novel arginine-capped bola-amphiphile peptides, namely RA6R and RA9R (R, arginine; A, alanine) are investigated. RA6R does not self-assemble in water due to its high solubility, but RA9R self-assembles above a critical aggregation concentration into ordered nanofibers due to the high hydrophobicity of the A9block. The structure of the RA9R nanofibers is studied by cryogenic transmission electron microscopy (cryo-TEM) and small-angle X-ray scattering (SAXS). Circular dichroism spectroscopy shows that both RA6R and RA9R adopt coil conformations in water at low concentration, but only RA9R adopts a β-sheet conformation at high concentration. SAXS and differential scanning calorimetry are used to study RA6R and RA9R interactions with a mixed lipid membrane that models a bacterial cell wall, consisting of multilamellar 1,2-dipalmitoyl-sn-glycero-3-phosphoglycerol/1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine vesicles. Cytotoxicity studies show that RA6R is more cytocompatible than RA9R. RA6R has enhanced activity against the Gram-negative pathogen P. aeruginosa at a concentration where viability of mammalian cells is retained. RA9R has little antimicrobial activity, independently of concentration. Our results highlight the influence of the interplay between relative charge and hydrophobicity on the self-assembly, cytocompatibility, and bioactivity of peptide bola-amphiphiles.
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Affiliation(s)
- Charlotte
J. C. Edwards-Gayle
- School
of Chemistry, Food Biosciences and Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
- Diamond
Light Source, Harwell Science and Innovation
Campus, Didcot, Oxfordshire OX11 0DE, U.K.
| | - Valeria Castelletto
- School
of Chemistry, Food Biosciences and Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
| | - Ian W. Hamley
- School
of Chemistry, Food Biosciences and Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
| | - Glyn Barrett
- School
of Biological Sciences, University of Reading, Reading RG6 6UR, U.K.
| | - Francesca Greco
- School
of Chemistry, Food Biosciences and Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, U.K.
| | | | - Robert P. Rambo
- Diamond
Light Source, Harwell Science and Innovation
Campus, Didcot, Oxfordshire OX11 0DE, U.K.
| | - Jani Seitsonen
- Department
of Applied Physics, Aalto School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Janne Ruokolainen
- Department
of Applied Physics, Aalto School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
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148
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Mello LR, Hamley IW, Miranda A, Alves WA, Silva ER. β
‐
sheet assembly in amyloidogenic glutamic acid nanostructures: Insights from X‐ray scattering and infrared nanospectroscopy. J Pept Sci 2019; 25:e3170. [DOI: 10.1002/psc.3170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/06/2019] [Accepted: 03/12/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Lucas R. Mello
- Departamento de BiofísicaUniversidade Federal de São Paulo São Paulo Brazil
| | - Ian W. Hamley
- Department of ChemistryUniversity of Reading Reading UK
| | - Antonio Miranda
- Departamento de BiofísicaUniversidade Federal de São Paulo São Paulo Brazil
| | - Wendel A. Alves
- Centro de Ciências Naturais e HumanasUniversidade Federal do ABC Santo André Brazil
| | - Emerson R. Silva
- Departamento de BiofísicaUniversidade Federal de São Paulo São Paulo Brazil
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149
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Affiliation(s)
- Marta Tena‐Solsona
- Department of ChemistryTechnical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
- Institute for Advanced StudyTechnical University of Munich Lichtenbergstrasse 2a 85748 Garching Germany
| | - Job Boekhoven
- Department of ChemistryTechnical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
- Institute for Advanced StudyTechnical University of Munich Lichtenbergstrasse 2a 85748 Garching Germany
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150
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Andrade D, Oliveira LBA, Colherinhas G. Elucidating NH2-I3V3A3G3K3-COOH and NH2-K3G3A3V3I3-COOH polypeptide membranes: A classical molecular dynamics study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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