101
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Tian X, Xue R, Yang F, Yin L, Luan S, Tang H. Single-Chain Nanoparticle-Based Coatings with Improved Bactericidal Activity and Antifouling Properties. Biomacromolecules 2021; 22:4306-4315. [PMID: 34569790 DOI: 10.1021/acs.biomac.1c00865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dual-function antibacterial surfaces have exhibited promising potential in addressing implant-associated infections. However, both bactericidal and antifouling properties need to be further improved prior to practical uses. Herein, we report the preparation and properties of a linear block copolymer coating (LP-KF) and a single-chain nanoparticle coating (NP-KF) with poly(ethylene glycol) (PEG) and cationic polypeptide segments. NP-KF with cyclic PEG segments and densely charged polypeptide segments was expected to display improved bactericidal and antifouling properties. LP-KF was prepared by the combination of ring-opening polymerization of N-carboxyanhydride (NCA) monomers and subsequent deprotection. NP-KF was prepared by intramolecular cross-linking of LP-KF in diluted solutions. Both LP-KF- and NP-KF-coated PDMS surfaces were prepared by dipping with polydopamine-coated surfaces. They showed superior in vitro bactericidal activity against both Staphylococcus aureus and Escherichia coli with >99.9% killing efficacy, excellent protein adsorption resistance, antibacterial adhesion, and low cytotoxicity. The NP-KF coating showed higher bactericidal activity and antifouling properties than its linear counterpart. It also showed significant anti-infective property and histocompatibility in vivo, which makes it a good candidate for implants and biomedical device applications.
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Affiliation(s)
- Xinyun Tian
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Ruizhong Xue
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Fangping Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Lichen Yin
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Haoyu Tang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
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102
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Zheng M, Lin H, Zhang W, Tang S, Liu D, Cai J. Poly(l-ornithine)-Grafted Zinc Phthalocyanines as Dual-Functional Antimicrobial Agents with Intrinsic Membrane Damage and Photothermal Ablation Capacity. ACS Infect Dis 2021; 7:2917-2929. [PMID: 34570483 DOI: 10.1021/acsinfecdis.1c00392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Multifunctional antimicrobial peptides that combine the intrinsic microbicidal property of cationic polypeptide chains and additional antibacterial strategy hold promising applications for the treatment of infections caused by antibiotic-resistant bacteria, especially "superbugs". In the present study, star-shaped copolymers ZnPc-g-PLO with a zinc phthalocyanine (ZnPc) core and four poly(l-ornithine) (PLO) arms were designed, synthesized, and evaluated as dual-functional antimicrobial agents, that is, intrinsic membrane damage and photothermal ablation capacity. In an aqueous solution, amphiphilic ZnPc-g-PLO molecules self-assemble into nanosized polymeric micelles with an aggregated ZnPc core and star-shaped PLO periphery, where the ZnPc core exhibits appreciable aggregation-induced photothermal conversion efficiency. In the absence of laser irradiation, ZnPc-g-PLO micelles display potent and broad-spectrum antibacterial activities via physical bacterial membrane disruption as a result of the high cationic charge density of the star-shaped PLO. Upon laser irradiation, significant improvement in bactericidal potency was realized due to the efficacious photothermal sterilization from the ZnPc core. Notably, ZnPc-g-PLO micelles did not induce drug-resistance upon subinhibitory passages. In summary, dual-functional ZnPc-g-PLO copolymers can serve as promising antibacterial agents for the treatment of infectious diseases caused by antibiotic-resistant bacteria.
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Affiliation(s)
- Maochao Zheng
- Department of Pharmacy, Shantou University Medical College, 22 Xinling Road, Shantou 515041, China
- Department of Pharmacy, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310022, China
| | - Huanchang Lin
- Department of Pharmacy, Shantou University Medical College, 22 Xinling Road, Shantou 515041, China
| | - Wancong Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, 69 Dongxiabei Road, Shantou 515041, China
- Plastic Surgery Institute of Shantou University Medical College, 69 Dongxiabei Road, Shantou 515041, China
| | - Shijie Tang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, 69 Dongxiabei Road, Shantou 515041, China
- Plastic Surgery Institute of Shantou University Medical College, 69 Dongxiabei Road, Shantou 515041, China
| | - Daojun Liu
- Department of Pharmacy, Shantou University Medical College, 22 Xinling Road, Shantou 515041, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
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103
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Tian ZY, Zhang Z, Wang S, Lu H. A moisture-tolerant route to unprotected α/β-amino acid N-carboxyanhydrides and facile synthesis of hyperbranched polypeptides. Nat Commun 2021; 12:5810. [PMID: 34608139 PMCID: PMC8490447 DOI: 10.1038/s41467-021-25689-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 08/20/2021] [Indexed: 01/04/2023] Open
Abstract
A great hurdle in the production of synthetic polypeptides lies in the access of N-carboxyanhydrides (NCA) monomers, which requires dry solvents, Schlenk line/gloveboxe, and protection of side-chain functional groups. Here we report a robust method for preparing unprotected NCA monomers in air and under moisture. The method employs epoxy compounds as ultra-fast scavengers of hydrogen chloride to allow assisted ring-closure and prevent NCA from acid-catalyzed decomposition under moist conditions. The broad scope and functional group tolerance of the method are demonstrated by the facile synthesis of over 30 different α/β-amino acid NCAs, including many otherwise inaccessible compounds with reactive functional groups, at high yield, high purity, and up to decagram scales. The utility of the method and the unprotected NCAs is demonstrated by the facile synthesis of two water-soluble polypeptides that are promising candidates for drug delivery and protein modification. Overall, our strategy holds great potential for facilitating the synthesis of NCA and expanding the industrial application of synthetic polypeptides.
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Affiliation(s)
- Zi-You Tian
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Zhengchu Zhang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Shuo Wang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China.
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104
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Xue R, Zhang X, Wei Y, Zhao Z, Liu H, Yang F, Yin L, Song Z, Luan S, Tang H. A sulfonate-based polypeptide toward infection-resistant coatings. Biomater Sci 2021; 9:6425-6433. [PMID: 34582529 DOI: 10.1039/d1bm00951f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Multifunctional coatings have gained significant attention for their promising potential to address the issue of medical device-related infections. However, they usually have multiple components in one layer which decreases the density of functional groups on surfaces and hence reduces the biological properties. Herein, we report a mono-component and sulfonate-based anionic polypeptide coating with on-demand antibacterial activity, antifouling property, and biocompatibility. The anionic polypeptide was prepared by ring-opening polymerization of L-cysteine-based N-carboxyanhydride (NCA) with allyl groups and a subsequent thiol-ene reaction to incorporate the sulfonate pendants. It adopted a 17.1-19.5% β-sheet conformation and self-assembled into a spherical nanoparticle. The polypeptide coating showed excellent in vitro antibacterial activity against both Gram-positive (i.e., S. aureus) and Gram-negative bacteria (i.e., E. coli) with >99% killing efficacy after acidic solution treatment and prominent antifouling property and biocompatibility after weak base treatment. An in vivo study revealed that the sulfonate-based polypeptide-coated polydimethylsiloxane (PDMS) exhibited good anti-infection property and histocompatibility.
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Affiliation(s)
- Ruizhong Xue
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Xu Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Yuansong Wei
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Ziyin Zhao
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Hao Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Fangping Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Lichen Yin
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Ziyuan Song
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Haoyu Tang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
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105
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Zheng B, Bai T, Tao X, Ling J. An Inspection into Multifarious Ways to Synthesize Poly(Amino Acid)s. Macromol Rapid Commun 2021; 42:e2100453. [PMID: 34562289 DOI: 10.1002/marc.202100453] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/09/2021] [Indexed: 12/21/2022]
Abstract
Poly(α-amino acid)s (PAAs) attract growing attention due to their essential role in the application as biomaterials. To synthesize PAAs with desired structures and properties, scientists have developed various synthetic techniques with respective advantages. Here, different approaches to preparing PAAs are inspected. Basic features and recent progresses of these methods are summarized, including polymerizations of amino acid N-carboxyanhydrides (NCAs), amino acid N-thiocarboxyanhydrides (NTAs), and N-phenoxycarbonyl amino acids (NPCs), as well as other synthetic routes. NCA is the most classical monomer to prepare PAAs with high molecular weights (MWs). NTA polymerizations are promising alternative pathways to produce PAAs, which can tolerate nucleophiles including alcohols, mercaptans, carboxyl acids, and water. By various techniques including choosing appropriate solvents or using organic acids as promoters, NTAs polymerize to produce polypeptoids and polypeptides with narrow dispersities and designed MWs up to 55.0 and 57.0 kg mol-1 , respectively. NPC polymerizations are phosgene-free ways to synthesize polypeptides and polypeptoids. For the future prospects, detail investigations into polymerization mechanisms of NTA and NPC are expected. The synthesis of PAAs with designed topologies and assembly structures is another intriguing topic. The advantages and unsettled problems in various synthetic ways are discussed for readers to choose appropriate approaches for PAAs.
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Affiliation(s)
- Botuo Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.,Fujian Key Laboratory of Polymer Science, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xinfeng Tao
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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106
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Pottanam Chali S, Azhdari S, Galstyan A, Gröschel AH, Ravoo BJ. Biodegradable supramolecular micelles via host-guest interaction of cyclodextrin-terminated polypeptides and adamantane-terminated polycaprolactones. Chem Commun (Camb) 2021; 57:9446-9449. [PMID: 34528969 DOI: 10.1039/d1cc03372g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Biodegradable supramolecular micelles were prepared exploiting the host-guest interaction of cyclodextrin and adamantane. Cyclodextrin-initiated polypeptides acted as the hydrophilic corona, whereas adamantane-terminated polycaprolactones served as the hydrophobic core.
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Affiliation(s)
- Sharafudheen Pottanam Chali
- Organic Chemistry Institute and Centre for Soft Nanoscience Westfälische Wilhelms-Universität Münster, Corrensstrasse 36, 48149 Münster, Germany.
| | - Suna Azhdari
- Physical Chemistry Institute and Centre for Soft Nanoscience Westfälische Wilhelms-Universität Münster, Corrensstrasse 28, 48149 Münster, Germany
| | - Anzhela Galstyan
- Centre for Soft Nanoscience Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149 Münster, Germany
| | - André H Gröschel
- Physical Chemistry Institute and Centre for Soft Nanoscience Westfälische Wilhelms-Universität Münster, Corrensstrasse 28, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Centre for Soft Nanoscience Westfälische Wilhelms-Universität Münster, Corrensstrasse 36, 48149 Münster, Germany.
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107
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Xu W, Xu Z, Cai C, Lin J, Gao L, Qi H, Lin S. Spiral- and meridian-patterned spheres self-assembled from block copolymer/homopolymer binary systems. NANOSCALE 2021; 13:14016-14022. [PMID: 34477682 DOI: 10.1039/d1nr02674g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Spiral nanostructures, mainly in the 2D form, have been observed in polymer self-assembly, while well-defined 3D spirals are rarely reported. Here we report that a binary system containing polypeptide-based block copolymers and homopolymers can self-assemble into well-defined spiral spheres (3D spirals), in which the homopolymers form the core and the copolymers form the spirals. Upon increasing the preparation temperature, meridian spheres were obtained. Mixing polypeptide block copolymers with opposite backbone chirality also leads to the formation of meridian spheres. In the meridian patterns, a tighter packing manner of the phenyl groups appended to the polypeptide blocks was observed, which is responsible for the spiral-to-meridian transitions. This work enriches the research of spiral assemblies and provides a facile route to switch chiral/achiral nanostructures by regulating the packing manner of the pendant groups.
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Affiliation(s)
- Wenheng Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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108
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Cui Z, Luo Q, Bannon MS, Gray VP, Bloom TG, Clore MF, Hughes MA, Crawford MA, Letteri RA. Molecular engineering of antimicrobial peptide (AMP)-polymer conjugates. Biomater Sci 2021; 9:5069-5091. [PMID: 34096936 PMCID: PMC8493962 DOI: 10.1039/d1bm00423a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
As antimicrobial resistance becomes an increasing threat, bringing significant economic and health burdens, innovative antimicrobial treatments are urgently needed. While antimicrobial peptides (AMPs) are promising therapeutics, exhibiting high activity against resistant bacterial strains, limited stability and toxicity to mammalian cells has hindered clinical development. Attaching AMPs to polymers provides opportunities to present AMPs in a way that maximizes bacterial killing while enhancing compatibility with mammalian cells, stability, and solubility. Conjugation of an AMP to a linear hydrophilic polymer yields the desired improvements in stability, mammalian cell compatibility, and solubility, yet often markedly reduces bactericidal effects. Non-linear polymer architectures and supramolecular assemblies that accommodate multiple AMPs per polymer chain afford AMP-polymer conjugates that strike a superior balance of antimicrobial activity, mammalian cell compatibility, stability, and solubility. Therefore, we review the design criteria, building blocks, and synthetic strategies for engineering AMP-polymer conjugates, emphasizing the connection between molecular architecture and antimicrobial performance to inspire and enable further innovation to advance this emerging class of biomaterials.
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Affiliation(s)
- Zixian Cui
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, USA.
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109
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Varlas S, Maitland GL, Derry MJ. Protein-, (Poly)peptide-, and Amino Acid-Based Nanostructures Prepared via Polymerization-Induced Self-Assembly. Polymers (Basel) 2021; 13:2603. [PMID: 34451144 PMCID: PMC8402019 DOI: 10.3390/polym13162603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/31/2021] [Accepted: 08/01/2021] [Indexed: 12/13/2022] Open
Abstract
Proteins and peptides, built from precisely defined amino acid sequences, are an important class of biomolecules that play a vital role in most biological functions. Preparation of nanostructures through functionalization of natural, hydrophilic proteins/peptides with synthetic polymers or upon self-assembly of all-synthetic amphiphilic copolypept(o)ides and amino acid-containing polymers enables access to novel protein-mimicking biomaterials with superior physicochemical properties and immense biorelevant scope. In recent years, polymerization-induced self-assembly (PISA) has been established as an efficient and versatile alternative method to existing self-assembly procedures for the reproducible development of block copolymer nano-objects in situ at high concentrations and, thus, provides an ideal platform for engineering protein-inspired nanomaterials. In this review article, the different strategies employed for direct construction of protein-, (poly)peptide-, and amino acid-based nanostructures via PISA are described with particular focus on the characteristics of the developed block copolymer assemblies, as well as their utilization in various pharmaceutical and biomedical applications.
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Affiliation(s)
- Spyridon Varlas
- Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - Georgia L Maitland
- Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, UK
| | - Matthew J Derry
- Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, UK
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110
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Li W, Separovic F, O'Brien-Simpson NM, Wade JD. Chemically modified and conjugated antimicrobial peptides against superbugs. Chem Soc Rev 2021; 50:4932-4973. [PMID: 33710195 DOI: 10.1039/d0cs01026j] [Citation(s) in RCA: 207] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Antimicrobial resistance (AMR) is one of the greatest threats to human health that, by 2050, will lead to more deaths from bacterial infections than cancer. New antimicrobial agents, both broad-spectrum and selective, that do not induce AMR are urgently required. Antimicrobial peptides (AMPs) are a novel class of alternatives that possess potent activity against a wide range of Gram-negative and positive bacteria with little or no capacity to induce AMR. This has stimulated substantial chemical development of novel peptide-based antibiotics possessing improved therapeutic index. This review summarises recent synthetic efforts and their impact on analogue design as well as their various applications in AMP development. It includes modifications that have been reported to enhance antimicrobial activity including lipidation, glycosylation and multimerization through to the broad application of novel bio-orthogonal chemistry, as well as perspectives on the direction of future research. The subject area is primarily the development of next-generation antimicrobial agents through selective, rational chemical modification of AMPs. The review further serves as a guide toward the most promising directions in this field to stimulate broad scientific attention, and will lead to new, effective and selective solutions for the several biomedical challenges to which antimicrobial peptidomimetics are being applied.
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Affiliation(s)
- Wenyi Li
- Melbourne Dental School, Centre for Oral Health Research, University of Melbourne, VIC 3010, Australia. and Bio21 Institute, University of Melbourne, VIC 3010, Australia
| | - Frances Separovic
- Bio21 Institute, University of Melbourne, VIC 3010, Australia and School of Chemistry, University of Melbourne, VIC 3010, Australia
| | - Neil M O'Brien-Simpson
- Melbourne Dental School, Centre for Oral Health Research, University of Melbourne, VIC 3010, Australia. and Bio21 Institute, University of Melbourne, VIC 3010, Australia
| | - John D Wade
- School of Chemistry, University of Melbourne, VIC 3010, Australia and The Florey Institute of Neuroscience and Mental Health, University of Melbourne, VIC 3010, Australia.
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111
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Gan BH, Gaynord J, Rowe SM, Deingruber T, Spring DR. The multifaceted nature of antimicrobial peptides: current synthetic chemistry approaches and future directions. Chem Soc Rev 2021; 50:7820-7880. [PMID: 34042120 PMCID: PMC8689412 DOI: 10.1039/d0cs00729c] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 12/13/2022]
Abstract
Bacterial infections caused by 'superbugs' are increasing globally, and conventional antibiotics are becoming less effective against these bacteria, such that we risk entering a post-antibiotic era. In recent years, antimicrobial peptides (AMPs) have gained significant attention for their clinical potential as a new class of antibiotics to combat antimicrobial resistance. In this review, we discuss several facets of AMPs including their diversity, physicochemical properties, mechanisms of action, and effects of environmental factors on these features. This review outlines various chemical synthetic strategies that have been applied to develop novel AMPs, including chemical modifications of existing peptides, semi-synthesis, and computer-aided design. We will also highlight novel AMP structures, including hybrids, antimicrobial dendrimers and polypeptides, peptidomimetics, and AMP-drug conjugates and consider recent developments in their chemical synthesis.
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Affiliation(s)
- Bee Ha Gan
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - Josephine Gaynord
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - Sam M Rowe
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - Tomas Deingruber
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - David R Spring
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
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112
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Tang CC, Zhang SH, My Phan TH, Tseng YC, Jan JS. Block length and topology affect self-assembly and gelation of poly(l-lysine)-block-poly(S-benzyl-l-cysteine) block copolypeptides. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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113
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Wang X, Song Z, Wei S, Ji G, Zheng X, Fu Z, Cheng J. Polypeptide-based drug delivery systems for programmed release. Biomaterials 2021; 275:120913. [PMID: 34217020 DOI: 10.1016/j.biomaterials.2021.120913] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 01/01/2023]
Abstract
Recent years have seen increasing interests in the use of ring-opening polymerization of α-amino acid N-carboxyanhydrides (NCAs) to prepare synthetic polypeptides, a class of biocompatible and versatile materials, for various biomedical applications. Because of their rich side-chain functionalities, diverse hydrophilicity/hydrophobicity profiles, and the capability of forming stable secondary structures, polypeptides can assemble into a variety of well-organized nano-structures that have unique advantages in drug delivery and controlled release. Herein, we review the design and use of polypeptide-based drug delivery system derived from NCA chemistry, and discuss the future perspectives of this exciting and important biomaterial area that may potentially change the landscape of next-generation therapeutics and diagnosis. Given the high significance of precise control over release for polypeptide-based systems, we specifically focus on the versatile designs of drug delivery systems capable of programmed release, through the changes in the chemical and physical properties controlled by the built-in molecular structures of polypeptides.
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Affiliation(s)
- Xu Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin, 300070, PR China; Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Ziyuan Song
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China.
| | - Shiqi Wei
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Guonan Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Xuetao Zheng
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Zihuan Fu
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States.
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114
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Wang TT, Xia YY, Gao JQ, Xu DH, Han M. Recent Progress in the Design and Medical Application of In Situ Self-Assembled Polypeptide Materials. Pharmaceutics 2021; 13:753. [PMID: 34069645 PMCID: PMC8160760 DOI: 10.3390/pharmaceutics13050753] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 12/20/2022] Open
Abstract
Inspired by molecular self-assembly, which is ubiquitous in natural environments and biological systems, self-assembled peptides have become a research hotspot in the biomedical field due to their inherent biocompatibility and biodegradability, properties that are afforded by the amide linkages forming the peptide backbone. This review summarizes the biological advantages, principles, and design strategies of self-assembled polypeptide systems. We then focus on the latest advances in in situ self-assembly of polypeptides in medical applications, such as oncotherapy, materials science, regenerative medicine, and drug delivery, and then briefly discuss their potential challenges in clinical treatment.
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Affiliation(s)
- Tian-Tian Wang
- Department of Pharmacy, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China;
| | - Yi-Yi Xia
- Institution of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; (Y.-Y.X.); (J.-Q.G.)
| | - Jian-Qing Gao
- Institution of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; (Y.-Y.X.); (J.-Q.G.)
| | - Dong-Hang Xu
- Department of Pharmacy, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China;
| | - Min Han
- Institution of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; (Y.-Y.X.); (J.-Q.G.)
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115
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Hall TJ, Villapún VM, Addison O, Webber MA, Lowther M, Louth SET, Mountcastle SE, Brunet MY, Cox SC. A call for action to the biomaterial community to tackle antimicrobial resistance. Biomater Sci 2021; 8:4951-4974. [PMID: 32820747 DOI: 10.1039/d0bm01160f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The global surge of antimicrobial resistance (AMR) is a major concern for public health and proving to be a key challenge in modern disease treatment, requiring action plans at all levels. Microorganisms regularly and rapidly acquire resistance to antibiotic treatments and new drugs are continuously required. However, the inherent cost and risk to develop such molecules has resulted in a drying of the pipeline with very few compounds currently in development. Over the last two decades, efforts have been made to tackle the main sources of AMR. Nevertheless, these require the involvement of large governmental bodies, further increasing the complexity of the problem. As a group with a long innovation history, the biomaterials community is perfectly situated to push forward novel antimicrobial technologies to combat AMR. Although this involvement has been felt, it is necessary to ensure that the field offers a united front with special focus in areas that will facilitate the development and implementation of such systems. This paper reviews state of the art biomaterials strategies striving to limit AMR. Promising broad-spectrum antimicrobials and device modifications are showcased through two case studies for different applications, namely topical and implantables, demonstrating the potential for a highly efficacious physical and chemical approach. Finally, a critical review on barriers and limitations of these methods has been developed to provide a list of short and long-term focus areas in order to ensure the full potential of the biomaterials community is directed to helping tackle the AMR pandemic.
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Affiliation(s)
- Thomas J Hall
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
| | - Victor M Villapún
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
| | - Owen Addison
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, SE1 9RT, UK
| | - Mark A Webber
- Quadram Institute Bioscience, Norwich Research Park, Colney, NR4 7UQ, UK
| | - Morgan Lowther
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
| | - Sophie E T Louth
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
| | - Sophie E Mountcastle
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
| | - Mathieu Y Brunet
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
| | - Sophie C Cox
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, UK.
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116
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Yao Q, Wu G, Hao H, Lu H, Gao Y. Redox-Mediated Reversible Supramolecular Assemblies Driven by Switch and Interplay of Peptide Secondary Structures. Biomacromolecules 2021; 22:2563-2572. [PMID: 33961410 DOI: 10.1021/acs.biomac.1c00300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The construction of reversible supramolecular self-assembly in vivo remains a significant challenge. Here, we demonstrate the redox-triggered reversible supramolecular self-assembly governed by the "check and balance" of two secondary conformations within a brushlike peptide-selenopolypeptide conjugate. The conjugate constitutes a polypeptide backbone whose side chain contains selenoether functional moieties and double bonds to be readily grafted with β-sheet-prone short-peptide NapFFC. The backbone of the conjugate initially assumes a robust and rigid α-helical conformation, which inhibits the supramolecular assembly of the short peptide in the side chain and yields an overall irregular aggregate morphology under native/reduced conditions. Upon oxidation of the selenoether to more hydrophilic selenoxide, the backbone helix switches to a flexible and disordered conformation, which unleashes the side-chain NapFFC self-assembly into nanofibrils via the adoption of β-sheet conformation. The reversible switch of the supramolecular morphology enables efficient loading and tumor-microenvironment-triggered release of anticancer drugs for in vivo cancer treatment with satisfactory efficacy and biocompatibility. The interplay and interaction between two well-defined secondary structures within one scaffold offer tremendous opportunity for the design and construction of functional supramolecular biomaterials.
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Affiliation(s)
- Qingxin Yao
- CAS Center of Excellence for Nanoscience, Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Guangqi Wu
- Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Hao Hao
- CAS Center of Excellence for Nanoscience, Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Yuan Gao
- CAS Center of Excellence for Nanoscience, Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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117
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Shi Z, Zhang X, Yu Z, Yang F, Liu H, Xue R, Luan S, Tang H. Facile Synthesis of Imidazolium-Based Block Copolypeptides with Excellent Antimicrobial Activity. Biomacromolecules 2021; 22:2373-2381. [PMID: 33955730 DOI: 10.1021/acs.biomac.1c00126] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Antimicrobial polypeptides are promising mimics of antimicrobial peptides (AMPs) with low risks of antimicrobial resistance (AMR). Polypeptides with facile and efficient production, high antimicrobial activity, and low toxicity toward mammalian cells are highly desirable for practical applications. Herein, triblock copolypeptides with chloro groups (PPGn-PCPBLGm) and different main-chain lengths were synthesized via an ultrafast ring-opening polymerization (ROP) using a macroinitiator, namely poly(propylene glycol) bis(2-aminopropyl ether), and purified or nonpurified monomer (i.e., CPBLG-NCA). PPGn-PCPBLGm with 90 amino acid residues can be readily prepared within 300 s. Imidazolium-based block copolypeptides (PPGn-PILm) were facilely prepared via nucleophilic substitution of PPGn-PCPBLGm with NaN3 and subsequent "click" chemistry. α-Helical PPGn-PILm can self-assemble into nanostructured and cationic micelles which displayed highly potent antimicrobial activity and low hemolysis. The top-performing material, namely PPG34-PIL70, showed low minimum inhibitory concentration (MIC) against both Gram-positive S. aureus and Gram-negative E. coli (25 μg mL-1). It also displayed low toxicity against mouse embryonic fibroblast (NIH 3T3) and human embryonic kidney (293T) cells at 2× MIC.
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Affiliation(s)
- Zuowen Shi
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Xu Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zikun Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Fangping Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Hao Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Ruizhong Xue
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Haoyu Tang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China.,Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
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118
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Liu H, Zhang X, Zhao Z, Yang F, Xue R, Yin L, Song Z, Cheng J, Luan S, Tang H. Efficient synthesis and excellent antimicrobial activity of star-shaped cationic polypeptides with improved biocompatibility. Biomater Sci 2021; 9:2721-2731. [PMID: 33617610 DOI: 10.1039/d0bm02151b] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Antimicrobial peptides (AMPs) have been considered as a promising new tool to combat the antimicrobial resistance (AMR) crisis. However, the high toxicity and high cost of AMPs hampered their further development. Herein, a series of star poly(L-lysine) (PLL) homo- and copolymers with excellent antimicrobial activity and improved biocompatibility were prepared by the combination of ultra-fast ring opening polymerization (ROP) and side-chain modification. The amine-terminated polyamidoamine dendrimer (Gx-PAMAM) mediated ROP of Nε-tert-butyloxycarbonyl-L-lysine N-carboxyanhydride (Boc-L-Lys-NCA) and γ-benzyl-L-glutamic acid-based N-carboxyanhydride (PBLG-NCA) was able to prepare star PLL homo- and copolymers with 400 residues within 50 min. While the star PLL homopolymers exhibited low minimum inhibitory concentration (MIC = 50-200 μg mL-1) against both Gram-positive and Gram-negative bacteria (i.e., S. aureus and E. coli), they showed high toxicity against various mammalian cell lines. The star PLL copolymers with low contents of hydrophobic and hydroxyl groups showed enhanced antimicrobial activity (MIC = 25-50 μg mL-1) and improved mammalian cell viability. Both SEM and CLSM results indicated the antimicrobial mechanism of membrane disruption.
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Affiliation(s)
- Hao Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
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Feng H, Linders J, Myszkowska S, Mayer C. Capsules from synthetic diblock-peptides as potential artificial oxygen carriers. J Microencapsul 2021; 38:276-284. [PMID: 33722172 DOI: 10.1080/02652048.2021.1903594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The design of an encapsulation system consisting of a synthetic peptide which is fully biodegradable into non-toxic constituents. This system should be capable of encapsulating perfluorinated hydrocarbons and should be a promising basis for oxygen carriers to be used as artificial blood replacement. A diblock-peptide is synthesised following a phosgene-free method and characterised by 1H-NMR. Subsequently, this diblock-peptide is self-assembled with perfluorodecalin (PFD) to form PFD-filled capsules as potential artificial oxygen carriers allowing for rapid oxygen uptake and release. The diblock-peptide Bu-PAsp10-PPhe10 is successfully synthesised and used to encapsulate PFD. The capsules have a spherical shape with an average diameter of 360 nm in stable aqueous dispersion. NMR measurements prove their physical capability for reversible uptake and release of oxygen. The resulting capsules are expected to be fully biodegradable and possibly could act as oxygen carriers for artificial blood replacement.
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Affiliation(s)
- Huayang Feng
- Institute for Physical Chemistry, CeNIDE, University of Duisburg-Essen, Essen, Germany
| | - Jürgen Linders
- Institute for Physical Chemistry, CeNIDE, University of Duisburg-Essen, Essen, Germany
| | - Sascha Myszkowska
- Institute for Physical Chemistry, CeNIDE, University of Duisburg-Essen, Essen, Germany
| | - Christian Mayer
- Institute for Physical Chemistry, CeNIDE, University of Duisburg-Essen, Essen, Germany
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120
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Preparation and solution properties of helical sulfonium-based polypeptides and their polyelectrolyte complexes. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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121
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Drug-induced hierarchical self-assembly of poly(amino acid) for efficient intracellular drug delivery. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.10.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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122
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Bai T, Zheng B, Ling J. Density Functional Theory Studies on the Synthesis of Poly(α-Amino Acid)s Via the Amine-Mediated Ring Opening Polymerizations of N-Carboxyanhydrides and N-Thiocarboxyanhydrides. Front Chem 2021; 9:645949. [PMID: 33855011 PMCID: PMC8039441 DOI: 10.3389/fchem.2021.645949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/17/2021] [Indexed: 11/13/2022] Open
Abstract
To synthesize well-defined poly (α-amino acid)s (PAAs), ring opening polymerizations (ROP) of cyclic monomers of α-amino acid N-carboxyanhydrides (NCAs) and N-thiocarboxyanhydrides (NTAs) are most widely used. In this mini-review, we summarize the mechanism details of the monomer preparation and ROP. The present study used density functional theory calculations to reveal the mechanisms together with experimental phenomena in the past decades. Detailed discussion includes normal amine mechanism and the selectivity of the initiators bearing various nucleophilic groups.
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Affiliation(s)
| | | | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
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123
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Chen J, Dong Y, Xiao C, Tao Y, Wang X. Organocatalyzed Ring-Opening Polymerization of Cyclic Lysine Derivative: Sustainable Access to Cationic Poly(ε-lysine) Mimics. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02689] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jinlong Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Yilin Dong
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
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124
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Jiang Y, Chen Y, Song Z, Tan Z, Cheng J. Recent advances in design of antimicrobial peptides and polypeptides toward clinical translation. Adv Drug Deliv Rev 2021; 170:261-280. [PMID: 33400958 DOI: 10.1016/j.addr.2020.12.016] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/16/2020] [Accepted: 12/28/2020] [Indexed: 12/27/2022]
Abstract
The recent outbreaks of infectious diseases caused by multidrug-resistant pathogens have sounded a piercing alarm for the need of new effective antimicrobial agents to guard public health. Among different types of candidates, antimicrobial peptides (AMPs) and the synthetic mimics of AMPs (SMAMPs) have attracted significant enthusiasm in the past thirty years, due to their unique membrane-active antimicrobial mechanism and broad-spectrum antimicrobial activity. The extensive research has brought many drug candidates into clinical and pre-clinical development. Despite tremendous progresses have been made, several major challenges inherent to current design strategies have slowed down the clinical translational development of AMPs and SMAMPs. However, these challenges also triggered many efforts to redesign and repurpose AMPs. In this review, we will first give an overview on AMPs and their synthetic mimics, and then discuss the current status of their clinical translation. Finally, the recent advances in redesign and repurposing AMPs and SMAMPs are highlighted.
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125
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Dharmayanti C, Gillam TA, Klingler-Hoffmann M, Albrecht H, Blencowe A. Strategies for the Development of pH-Responsive Synthetic Polypeptides and Polymer-Peptide Hybrids: Recent Advancements. Polymers (Basel) 2021; 13:624. [PMID: 33669548 PMCID: PMC7921987 DOI: 10.3390/polym13040624] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/11/2021] [Accepted: 02/15/2021] [Indexed: 12/11/2022] Open
Abstract
Synthetic polypeptides and polymer-peptide hybrid materials have been successfully implemented in an array of biomedical applications owing to their biocompatibility, biodegradability and ability to mimic natural proteins. In addition, these materials have the capacity to form complex supramolecular structures, facilitate specific biological interactions, and incorporate a diverse selection of functional groups that can be used as the basis for further synthetic modification. Like conventional synthetic polymers, polypeptide-based materials can be designed to respond to external stimuli (e.g., light and temperature) or changes in the environmental conditions (e.g., redox reactions and pH). In particular, pH-responsive polypeptide-based systems represent an interesting avenue for the preparation of novel drug delivery systems that can exploit physiological or pathological pH variations within the body, such as those that arise in the extracellular tumour microenvironment, intracellularly within endosomes/lysosomes, or during tissue inflammation. Here, we review the significant progress made in advancing pH-responsive polypeptides and polymer-peptide hybrid materials during the last five years, with a particular emphasis on the manipulation of ionisable functional groups, pH-labile linkages, pH-sensitive changes to secondary structure, and supramolecular interactions.
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Affiliation(s)
- Cintya Dharmayanti
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia; (C.D.); (T.A.G.)
| | - Todd A. Gillam
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia; (C.D.); (T.A.G.)
- Surface Interactions and Soft Matter Group, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
| | | | - Hugo Albrecht
- Drug Discovery and Development Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia;
| | - Anton Blencowe
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia; (C.D.); (T.A.G.)
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126
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Xia Y, Song Z, Tan Z, Xue T, Wei S, Zhu L, Yang Y, Fu H, Jiang Y, Lin Y, Lu Y, Ferguson AL, Cheng J. Accelerated polymerization of N-carboxyanhydrides catalyzed by crown ether. Nat Commun 2021; 12:732. [PMID: 33531482 PMCID: PMC7854670 DOI: 10.1038/s41467-020-20724-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023] Open
Abstract
The recent advances in accelerated polymerization of N-carboxyanhydrides (NCAs) enriched the toolbox to prepare well-defined polypeptide materials. Herein we report the use of crown ether (CE) to catalyze the polymerization of NCA initiated by conventional primary amine initiators in solvents with low polarity and low hydrogen-bonding ability. The cyclic structure of the CE played a crucial role in the catalysis, with 18-crown-6 enabling the fastest polymerization kinetics. The fast polymerization kinetics outpaced common side reactions, enabling the preparation of well-defined polypeptides using an α-helical macroinitiator. Experimental results as well as the simulation methods suggested that CE changed the binding geometry between NCA and propagating amino chain-end, which promoted the molecular interactions and lowered the activation energy for ring-opening reactions of NCAs. This work not only provides an efficient strategy to prepare well-defined polypeptides with functionalized C-termini, but also guides the design of catalysts for NCA polymerization.
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Affiliation(s)
- Yingchun Xia
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Institute of Polymer Science, College of Chemistry & Chemical Engineering, Hunan University, 410082, Changsha, China
| | - Ziyuan Song
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Zhengzhong Tan
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Tianrui Xue
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Shiqi Wei
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Lingyang Zhu
- NMR Laboratory, School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yingfeng Yang
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Hailin Fu
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Yunjiang Jiang
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yao Lin
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Yanbing Lu
- Institute of Polymer Science, College of Chemistry & Chemical Engineering, Hunan University, 410082, Changsha, China.
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA.
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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127
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Du C, Zhou L, Qian J, He M, Dong CM, Xia JD, Zhang ZG, Zhang R. A zwitterionic polypeptide nanocomposite with unique NIR-I/II photoacoustic imaging for NIR-I/II cancer photothermal therapy. J Mater Chem B 2021; 9:5484-5491. [PMID: 34161406 DOI: 10.1039/d1tb00823d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The second near infrared photoacoustic imaging (NIR-II PAI) and photothermal therapy (NIR-II PTT) have attracted wide interest in cancer theranostics because of maximum permission exposure (MPE), deep penetration, and lower scattering and background noise compared to NIR-I counterparts; however, it is imperative to develop biocompatible nanomaterials having NIR-II response. By utilizing multivalent Au-S coordination bonds, we constructed a zwitterionic polypeptide nanocomposite of PMC@AuNP with a suitable size of 48 ± 2 nm, which possessed a strong and broad absorbance at 650-1100 nm and an excellent photothermal conversion efficiency of 49.5%. In vitro biological studies demonstrated that NIR-II PTT within MPE was more effective than NIR-I PTT beyond MPE. Along with X-ray computed tomography and photothermal imaging functions, PMC@AuNP in vivo presented unique NIR-I/II PAI with 2.6-5.9 times signal enhancement compared to the contrast. By single dose and NIR-II irradiation (1064 nm, 1 W cm-2, 10 min), NIR-II PTT within MPE completely eradicated MCF-7 tumors without tissue damage and tumor recurrence within 24 days, inducing a better antitumor efficacy than NIR-I PTT beyond MPE. Importantly, this study provides an innovative method for the fabrication of biocompatible zwitterionic polypeptide nanocomposites with unique NIR-I/II PAI and NIR-II PTT attributes, thus holding great potential for precise cancer theranostics and further clinical transitions.
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Affiliation(s)
- Chang Du
- Joint Research Center for Precision Medicine, Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus, Shanghai Fengxian Central Hospital, Shanghai 201499, P. R. China. and School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Lei Zhou
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jiwen Qian
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Meng He
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chang-Ming Dong
- Joint Research Center for Precision Medicine, Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus, Shanghai Fengxian Central Hospital, Shanghai 201499, P. R. China. and School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jin-Dong Xia
- Department of Radiology, Shanghai Songjiang District Central Hospital, Shanghai 201600, P. R. China
| | - Zhi-Gang Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Rong Zhang
- Joint Research Center for Precision Medicine, Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus, Shanghai Fengxian Central Hospital, Shanghai 201499, P. R. China.
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128
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Abstract
Compared to normal tissue, solid tumors exhibit a lower pH value. Such pH gradient can be used to design pH-sensitive nanogels for selective drug delivery. The acid-sensitive elements in the nanogel cause it to swell/degrade rapidly, followed by rapid drug release.
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Affiliation(s)
- Zhen Li
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- PR. China
| | - Jun Huang
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- PR. China
- The Seventh Affiliated Hospital of Sun Yat-Sen University
| | - Jun Wu
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- PR. China
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129
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Kimmins SD, Hanay SB, Murphy R, O'Dwyer J, Ramalho J, Ryan EJ, Kearney CJ, O'Brien FJ, Cryan SA, Fitzgerald-Hughes D, Heise A. Antimicrobial and degradable triazolinedione (TAD) crosslinked polypeptide hydrogels. J Mater Chem B 2021; 9:5456-5464. [PMID: 34048521 DOI: 10.1039/d1tb00776a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hydrogels are perfectly suited to support cell and tissue growth in advanced tissue engineering applications as well as classical wound treatment scenarios. Ideal hydrogel materials for these applications should be easy to produce, biocompatible, resorbable and antimicrobial. Here we report the fabrication of degradable covalent antimicrobial lysine and tryptophan containing copolypeptide hydrogels, whereby the hydrogel properties can be independently modulated by the copolypeptide monomer ratio and chiral composition. Well-defined statistical copolypeptides comprising different overall molecular weights as well as ratios of l- and d-lysine and tryptophan at ratios of 35 : 15, 70 : 30 and 80 : 20 were obtained by N-carboxyanhydride (NCA) polymerisation and subsequently crosslinked by the selective reaction of bifunctional triazolinedione (TAD) with tryptophan. Real-time rheology was used to monitor the crosslinking reaction recording the fastest increase and overall modulus for copolypeptides with the higher tryptophan ratio. Water uptake of cylindrical hydrogel samples was dependent on crosslinking ratio but found independent of chiral composition, while enzymatic degradation proceeded significantly faster for samples containing more l-amino acids. Antimicrobial activity on a range of hydrogels containing different polypeptide chain lengths, lysine/tryptophan composition and l/d enantiomers was tested against reference laboratory strains of Gram-negative Escherichia coli (E. coli; ATCC25922) and Gram-positive, Staphylococcus aureus (S. aureus; ATCC25923). log reductions of 2.8-3.4 were recorded for the most potent hydrogels. In vitro leachable cytotoxicity tests confirmed non-cytotoxicity as per ISO guidelines.
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Affiliation(s)
- Scott D Kimmins
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland. and Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330, Curauma, Placilla, Valparaíso, Chile
| | - Saltuk B Hanay
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland.
| | - Robert Murphy
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland.
| | - Joanne O'Dwyer
- Drug Delivery and Advanced Materials Team, School of Pharmacy, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland and Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicines, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland
| | - Jessica Ramalho
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland.
| | - Emily J Ryan
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicines, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland and Department of Biomedical Engineering, University of Massachusetts Amherst, MA, USA and Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin 2, Ireland
| | - Cathal J Kearney
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicines, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland and Department of Biomedical Engineering, University of Massachusetts Amherst, MA, USA and Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin 2, Ireland and Advanced Materials and Bioengineering Research Centre (AMBER), RCSI University of Medicine and Health Sciences, and Trinity College Dublin, Dublin 2, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicines, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland and Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin 2, Ireland and Advanced Materials and Bioengineering Research Centre (AMBER), RCSI University of Medicine and Health Sciences, and Trinity College Dublin, Dublin 2, Ireland and Centre for Research in Medical Devices (CURAM), RCSI University of Medicine and Health Sciences, Dublin 2, and National University or Ireland, Galway, Ireland
| | - Sally-Ann Cryan
- Drug Delivery and Advanced Materials Team, School of Pharmacy, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland and Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicines, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland and Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin 2, Ireland and Advanced Materials and Bioengineering Research Centre (AMBER), RCSI University of Medicine and Health Sciences, and Trinity College Dublin, Dublin 2, Ireland and Centre for Research in Medical Devices (CURAM), RCSI University of Medicine and Health Sciences, Dublin 2, and National University or Ireland, Galway, Ireland
| | - Deirdre Fitzgerald-Hughes
- Department of Clinical Microbiology, RCSI University of Medicine and Health Sciences, Education and Research Centre, Beaumont Hospital, Dublin 9, Dublin, Ireland
| | - Andreas Heise
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland. and Advanced Materials and Bioengineering Research Centre (AMBER), RCSI University of Medicine and Health Sciences, and Trinity College Dublin, Dublin 2, Ireland and Centre for Research in Medical Devices (CURAM), RCSI University of Medicine and Health Sciences, Dublin 2, and National University or Ireland, Galway, Ireland
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130
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Grazon C, Salas-Ambrosio P, Antoine S, Ibarboure E, Sandre O, Clulow AJ, Boyd BJ, Grinstaff MW, Lecommandoux S, Bonduelle C. Aqueous ROPISA of α-amino acid N-carboxyanhydrides: polypeptide block secondary structure controls nanoparticle shape anisotropy. Polym Chem 2021. [DOI: 10.1039/d1py00995h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Ring-Opening Polymerization-Induced Self-Assembly (ROPISA) of N-carboxyanhydride is an efficient one-step process to obtain nanomaterials made of polypeptides.
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Affiliation(s)
- Chloé Grazon
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
- Departments of Chemistry and Biomedical Engineering, Boston University, Boston, MA, USA
- Univ. Bordeaux, Institut des Sciences Moléculaires (CNRS UMR 5255), 33405 Talence, France
| | | | - Ségolène Antoine
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Olivier Sandre
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Andrew J. Clulow
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, VIC 3052, Australia
- Australian Synchrotron, ANSTO, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - Ben J. Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, VIC 3052, Australia
- ARC Centre of Excellence in Convergent Bionano Science and Technology, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Mark W. Grinstaff
- Departments of Chemistry and Biomedical Engineering, Boston University, Boston, MA, USA
| | | | - Colin Bonduelle
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
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131
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Song Y, Chen Y, Li P, Dong CM. Photoresponsive Polypeptide-Glycosylated Dendron Amphiphiles: UV-Triggered Polymersomes, OVA Release, and In Vitro Enhanced Uptake and Immune Response. Biomacromolecules 2020; 21:5345-5357. [DOI: 10.1021/acs.biomac.0c01465] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yingying Song
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yanzheng Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Pan Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chang-Ming Dong
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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132
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Synthesis of poly(Asparagine-co-phenylalanine) copolymers, analogy with thermosensitive poly(acrylamide-co-styrene) copolymers and formation of PEGylated nanoparticles. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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133
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Robust and smart polypeptide-based nanomedicines for targeted tumor therapy. Adv Drug Deliv Rev 2020; 160:199-211. [PMID: 33137364 DOI: 10.1016/j.addr.2020.10.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 02/08/2023]
Abstract
Nanomedicines based on synthetic polypeptides are among the most versatile and advanced platforms for tumor therapy. Notably, several polypeptide-based nanodrugs are currently under human clinical assessments. The previous (pre)clinical studies clearly show that dynamic stability (i.e. stable in circulation while destabilized in tumor) of nanomedicines plays a vital role in their anti-tumor performance. Various strategies have recently been developed to design dynamically stabilized polypeptide-based nanomedicines by e.g. crosslinking the nanovehicles with acid, reactive oxygen species (ROS), glutathione (GSH), or photo-sensitive linkers, inter-crosslinking between vehicles and drugs, introducing π-π stacking or lipid-lipid interactions in the nanovehicles, chemically conjugating drugs to vehicles, and forming unimolecular micelles. Interestingly, these robust and smart nanodrugs have demonstrated improved tumor targetability, anti-tumor efficacy, as well as safety profiles in different tumor models. In this review, representative strategies to robust and smart polypeptide-based nanomedicines for targeted treatment of varying malignancies are highlighted. The exciting development of dynamic nanomedicines will foresee further increasing clinical translation in the future.
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134
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Muhl C, Zengerling L, Groß J, Eckhardt P, Opatz T, Besenius P, Barz M. Insight into the synthesis of N-methylated polypeptides. Polym Chem 2020. [DOI: 10.1039/d0py01055c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The ring-opening polymerization of α-substituted N-methylated N-carboxy anhydrides is reported. The polymerization was tested using various amino acids and initiators, and was found to be limited by the steric demand of N-methylated compared to conventional amino acids.
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Affiliation(s)
- Christian Muhl
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
| | - Lydia Zengerling
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
| | - Jonathan Groß
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
| | - Paul Eckhardt
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
| | - Till Opatz
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
| | - Pol Besenius
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
| | - Matthias Barz
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55099 Mainz
- Germany
- Leiden Academic Center for Drug Research (LACDR)
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135
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Kuang G, Zhang Q, He S, Wu Y, Huang Y. Reduction-responsive disulfide linkage core-cross-linked polymeric micelles for site-specific drug delivery. Polym Chem 2020. [DOI: 10.1039/d0py00987c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reduction-responsive disulfide linkage core-cross-linked polymeric micelles (CLM@DOX) were developed for effective site-specific doxorubicin delivery.
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Affiliation(s)
- Gaizhen Kuang
- Department of Medical Oncology
- Affiliated Cancer Hospital of Zhengzhou University
- Zhengzhou 450008
- P. R. China
| | - Qingfei Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Shasha He
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Yanjuan Wu
- Shandong Provincial Key Laboratory of Molecular Engineering
- Qilu University of Technology-Shandong Academy of Science
- Ji'nan 250353
- PR China
| | - Yubin Huang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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136
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Wu Y, Xia G, Zhang W, Chen K, Bi Y, Liu S, Zhang W, Liu R. Structural design and antimicrobial properties of polypeptides and saccharide–polypeptide conjugates. J Mater Chem B 2020; 8:9173-9196. [DOI: 10.1039/d0tb01916j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The development and progress of antimicrobial polypeptides and saccharide–polypeptide conjugates in regards to their structural design, biological functions and antimicrobial mechanism.
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Affiliation(s)
- Yueming Wu
- State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Guixue Xia
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Weiwei Zhang
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Kang Chen
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yufang Bi
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Shiqi Liu
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Wenjing Zhang
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Runhui Liu
- State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry
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