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Arkas M, Vardavoulias M, Kythreoti G, Giannakoudakis DA. Dendritic Polymers in Tissue Engineering: Contributions of PAMAM, PPI PEG and PEI to Injury Restoration and Bioactive Scaffold Evolution. Pharmaceutics 2023; 15:524. [PMID: 36839847 PMCID: PMC9966633 DOI: 10.3390/pharmaceutics15020524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
The capability of radially polymerized bio-dendrimers and hyperbranched polymers for medical applications is well established. Perhaps the most important implementations are those that involve interactions with the regenerative mechanisms of cells. In general, they are non-toxic or exhibit very low toxicity. Thus, they allow unhindered and, in many cases, faster cell proliferation, a property that renders them ideal materials for tissue engineering scaffolds. Their resemblance to proteins permits the synthesis of derivatives that mimic collagen and elastin or are capable of biomimetic hydroxy apatite production. Due to their distinctive architecture (core, internal branches, terminal groups), dendritic polymers may play many roles. The internal cavities may host cell differentiation genes and antimicrobial protection drugs. Suitable terminal groups may modify the surface chemistry of cells and modulate the external membrane charge promoting cell adhesion and tissue assembly. They may also induce polymer cross-linking for healing implementation in the eyes, skin, and internal organ wounds. The review highlights all the different categories of hard and soft tissues that may be remediated with their contribution. The reader will also be exposed to the incorporation of methods for establishment of biomaterials, functionalization strategies, and the synthetic paths for organizing assemblies from biocompatible building blocks and natural metabolites.
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Affiliation(s)
- Michael Arkas
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece
| | | | - Georgia Kythreoti
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece
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2
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Elastin-like polypeptide-based micelles as a promising platform in nanomedicine. J Control Release 2023; 353:713-726. [PMID: 36526018 DOI: 10.1016/j.jconrel.2022.12.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
New and improved nanomaterials are constantly being developed for biomedical purposes. Nanomaterials based on elastin-like polypeptides (ELPs) have increasingly shown potential over the past two decades. These polymers are artificial proteins of which the design is based on human tropoelastin. Due to this similarity, ELP-based nanomaterials are biodegradable and therefore well suited to drug delivery. The assembly of ELP molecules into nanoparticles spontaneously occurs at temperatures above a transition temperature (Tt). The ELP sequence influences both the Tt and the physicochemical properties of the assembled nanomaterial. Nanoparticles with desired properties can hence be designed by choosing the appropriate sequence. A promising class of ELP nanoparticles are micelles assembled from amphiphilic ELP diblock copolymers. Such micelles are generally uniform and well defined. Furthermore, site-specific attachment of cargo to the hydrophobic block results in micelles with the cargo shielded inside their core, while conjugation to the hydrophilic block causes the cargo to reside in the corona where it is available for interactions. Such control over particle design is one of the main contributing factors for the potential of ELP-based micelles as a drug delivery system. Additionally, the micelles are easily loaded with protein or peptide-based cargo by expressing it as a fusion protein. Small molecule drugs and other cargo types can be either covalently conjugated to ELP domains or physically entrapped inside the micelle core. This review aims to give an overview of ELP-based micelles and their applications in nanomedicine.
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3
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Wu N, Xing M, Chen Y, Zhang C, Li Y, Song P, Xu Q, Liu H, Huang H. Improving the productivity of malic acid by alleviating oxidative stress during Aspergillus niger fermentation. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:151. [PMID: 36581946 PMCID: PMC9801644 DOI: 10.1186/s13068-022-02250-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/15/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND As an attractive platform chemical, malic acid has been commonly used in the food, feed and pharmaceutical field. Microbial fermentation of biobased sources to produce malic acid has attracted great attention because it is sustainable and environment-friendly. However, most studies mainly focus on improving yield and ignore shortening fermentation time. A long fermentation period means high cost, and hinders the industrial applications of microbial fermentation. Stresses, especially oxidative stress generated during fermentation, inhibit microbial growth and production, and prolong fermentation period. Previous studies have shown that polypeptides could effectively relieve stresses, but the underlying mechanisms were poorly understood. RESULTS In this study, polypeptides (especially elastin peptide) addition improves the productivity of malic acid in A. niger, resulting in shortening of fermentation time from 120 to 108 h. Transcriptome and biochemical analyses demonstrated that both antioxidant enzyme-mediated oxidative stress defense system, such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX), and nonenzymatic antioxidant system, such as glutathione, were enhanced in the presence of elastin peptide, suggesting elastin peptide relieving oxidative stresses is involved in many pathways. In order to further investigate the relationship between oxidative stress defense and malic acid productivity, we overexpressed three enzymes (Sod1, CAT, Tps1) related to oxidation resistance in A. niger, respectively, and these resulting strains display varying degree of improvement in malic acid productivity. Especially, the strain overexpressing the Sod1 gene achieved a malate titer of 91.85 ± 2.58 g/L in 96 h, corresponding to a productivity of 0.96 g/L/h, which performs better than elastin peptide addition. CONCLUSIONS Our investigation provides an excellent reference for alleviating the stress of the fungal fermentation process and improving fermentation efficiency.
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Affiliation(s)
- Na Wu
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China ,grid.260474.30000 0001 0089 5711College of Life Sciences, Nanjing Normal University, Nanjing, 210046 China
| | - Mingyan Xing
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China
| | - Yaru Chen
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China
| | - Chi Zhang
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China
| | - Yingfeng Li
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China ,grid.260474.30000 0001 0089 5711College of Life Sciences, Nanjing Normal University, Nanjing, 210046 China
| | - Ping Song
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China
| | - Qing Xu
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China
| | - Hao Liu
- grid.413109.e0000 0000 9735 6249Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, Tianjin University of Science & Technology, Tianjin, 300457 China
| | - He Huang
- grid.260474.30000 0001 0089 5711School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023 China ,grid.412022.70000 0000 9389 5210College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800 China
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4
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Garanger E, Lecommandoux S. Emerging opportunities in bioconjugates of Elastin-like polypeptides with synthetic or natural polymers. Adv Drug Deliv Rev 2022; 191:114589. [PMID: 36323382 DOI: 10.1016/j.addr.2022.114589] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 01/24/2023]
Abstract
Nature is an everlasting source of inspiration for chemical and polymer scientists seeking to develop ever more innovative materials with greater performances. Natural structural proteins are particularly scrutinized to design biomimetic materials. Often characterized by repeat peptide sequences, that together interact by inter- and intramolecular interactions and form a 3D skeleton, they contribute to the mechanical properties of individual cells, tissues, organs, and whole organisms. (Numata, K. Polymer Journal 2020, 52, 1043-1056) Among them elastin, and its main repeat sequences, have been a source of intense studies for more than 50 years resulting in the specific research field dedicated to elastin-like polypeptides (ELPs). These are currently widely investigated in different applications, namely protein purification, tissue engineering, and drug delivery, and some technologies based on ELPs are currently explored by several start-up companies. In the present review, we have summarized pioneering contributions on ELPs, progress made in their genetic engineering, and understanding of their thermal behavior and self-assembly properties. Considered as intrinsically disordered protein polymers, we have finally focused on the works where ELPs have been conjugated to other synthetic macromolecules as covalent hybrid, statistical, graft, or block copolymers, highlighting the huge opportunities that have still not been explored so far.
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Affiliation(s)
- Elisabeth Garanger
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, ENSCBP, 16 Avenue Pey-Berland, Pessac F-33600, France.
| | - Sébastien Lecommandoux
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, ENSCBP, 16 Avenue Pey-Berland, Pessac F-33600, France.
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5
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Kojima C, Fu Y, Tamaki M. Control of Stimuli Sensitivity in pH-Switchable LCST/UCST-Type Thermosensitive Dendrimers by Changing the Dendrimer Structure. Polymers (Basel) 2022; 14:polym14122426. [PMID: 35746002 PMCID: PMC9227611 DOI: 10.3390/polym14122426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 02/01/2023] Open
Abstract
Stimuli-sensitive materials, such as pH- and temperature-responsive polymers, are useful as smart materials. Phenylalanine (Phe)-modified polyamidoamine (PAMAM) dendrimers with succinic acid termini, PAMAM-Phe-Suc, have been reported as unique pH-switchable lower critical solution temperature (LCST)-/upper critical solution temperature (UCST)-type thermosensitive polymers. Regulating the phase transition behavior of dendrimers is important for their applications. This study investigated the relationship between the dendrimer structure and stimuli sensitivity. Phe-modified PAMAM dendrimers with cyclohexanedicarboxylate termini (PAMAM-Phe-CHex) and sulfonate termini (PAMAM-Phe-SO3Na) were synthesized. The temperature-dependent transmittance of these aqueous dendrimer solutions was examined at various pH values. PAMAM-Phe-CHex with Phe at all termini (PAMAM-Phe64-CHex) demonstrated a broad UCST-like phase transition at pH 7.0 but lacked an LCST-type phase transition. PAMAM-Phe-CHex with ≤ 27 Phe residues showed both LCST- and UCST-like phase transitions at different pH values, but the phase transition was broad. PAMAM-Phe-SO3Na showed both LCST- and UCST-type phase transitions at different pH values, and the transition temperature increased as the bound Phe number decreased. Thus, the phase transition behavior of PAMAM-Phe-SO3Na dendrimers can be regulated by varying the Phe/PAMAM ratios.
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6
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Xie F, Li R, Shu W, Zhao L, Wan J. Self-assembly of Peptide dendrimers and their bio-applications in theranostics. Mater Today Bio 2022; 14:100239. [PMID: 35295319 PMCID: PMC8919296 DOI: 10.1016/j.mtbio.2022.100239] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 12/22/2022] Open
Abstract
Nanotechnology has brought revolutionized advances in disease diagnosis and therapy. Self-assembled peptide dendrimers own novel physicochemical properties through the synergistic effects of the polypeptide chain, dendrimer and nano-structure, exhibiting great potential in theranostic. This review provides comprehensive insights into various peptide dendrimers for self-assembly. Their nanosize, morphology and composition are presented to understand self-assembly behaviors precisely. We further introduce the emerging theranostic applications based on specific imaging and efficient delivery recently.
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Affiliation(s)
- Fengjuan Xie
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, PR China
| | - Rongxin Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, PR China
| | - Weikang Shu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, PR China
| | - Liang Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, PR China
| | - Jingjing Wan
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, PR China
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7
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Suyama K, Mawatari M, Tatsubo D, Maeda I, Nose T. Simple Regulation of the Self-Assembling Ability by Multimerization of Elastin-Derived Peptide (FPGVG) n Using Nitrilotriacetic Acid as a Building Block. ACS OMEGA 2021; 6:5705-5716. [PMID: 33681610 PMCID: PMC7931394 DOI: 10.1021/acsomega.0c06140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Elastin comprises hydrophobic repetitive sequences, such as Val-Pro-Gly-Val-Gly, which are thought to be important for the temperature-dependent reversible self-association (coacervation). Elastin and elastin-like peptides (ELPs), owing to their characteristics, are expected to be applied as base materials for the development of new molecular tools, such as drug-delivery system carrier and metal-scavenging agents. Recently, several studies have been reported on the dendritic or branching ELP analogues. Although the topological difference of the branched ELPs compared to their linear counterparts may lead to useful properties in biomaterials, the available information regarding the effect of branching on molecular architecture and thermoresponsive behavior of ELPs is scarce. To obtain further insight into the thermoresponsive behavior of branched ELPs, novel ELPs, such as nitrilotriacetic acid (NTA)-(FPGVG) n conjugates, that is, (NTA)-Fn analogues possessing 1-3 (FPGVG) n (n = 3, 5) molecule(s), were synthesized and investigated for their coacervation ability. Turbidity measurement of the synthesized peptide analogues revealed that (NTA)-Fn analogues showed strong coacervation ability with various strengths. The transition temperature of NTA-Fn analogues exponentially decreased with increasing number of residues. In the circular dichroism measurements, trimerization did not alter the secondary structure of each peptide chain of the NTA-Fn analogue. In addition, it was also revealed that the NTA-Fn analogue possesses one peptide chain that could be utilized as metal-scavenging agents. The study findings indicated that multimerization of short ELPs via NTA is a useful and powerful strategy to obtain thermoresponsive molecules.
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Affiliation(s)
- Keitaro Suyama
- Laboratory
of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mika Mawatari
- Department
of Chemistry, Faculty and Graduate School
of Science, Fukuoka 819-0395, Japan
| | - Daiki Tatsubo
- Department
of Chemistry, Faculty and Graduate School
of Science, Fukuoka 819-0395, Japan
| | - Iori Maeda
- Department
of Physics and Information Technology, Kyushu
Institute of Technology, Iizuka, Fukuoka 820-8502, Japan
| | - Takeru Nose
- Laboratory
of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
- Department
of Chemistry, Faculty and Graduate School
of Science, Fukuoka 819-0395, Japan
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8
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Tabatabaei Mirakabad FS, Khoramgah MS, Keshavarz F K, Tabarzad M, Ranjbari J. Peptide dendrimers as valuable biomaterials in medical sciences. Life Sci 2019; 233:116754. [PMID: 31415768 DOI: 10.1016/j.lfs.2019.116754] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/31/2019] [Accepted: 08/11/2019] [Indexed: 01/01/2023]
Abstract
Peptides are oligomers of amino acids, which have been used in a wide range of applications, particularly in medical and pharmaceutical sciences. Linear peptides have been extensively developed in various fields of medicine as therapeutics or targeting agents. The branched structure of peptide dendrimers with peptide (commonly, poly l‑Lysine) or non-peptide (commonly poly‑amidoamine) core, often exhibits valuable novel features, improves stability and enhances the functionality of peptide in comparison with small linear peptides. The potential applications of Branched and hyper-branched peptidic structures which are known as peptide dendrimers in biomedical sciences have been approved vastly. A peptide dendrimer contains three distinct parts including core, building blocks and branching units or surface functional groups. These structures provide a lot of opportunities in the pharmaceutical field, particularly for novel drug development. In this review, a brief summary of different biomedical applications of peptide dendrimers is presented, and peptide dendrimers as active pharmaceutical ingredients and drug delivery carriers are discussed. Applications of peptide dendrimers in vaccines and diagnostic tools are also presented, in brief. Generally, peptide dendrimers are promising biomaterials with high evolution rate for clinical and non-clinical applications in medicine.
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Affiliation(s)
| | - Maryam Sadat Khoramgah
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Keshavarz F
- School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Javad Ranjbari
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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9
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Qin J, Luo T, Kiick KL. Self-Assembly of Stable Nanoscale Platelets from Designed Elastin-like Peptide–Collagen-like Peptide Bioconjugates. Biomacromolecules 2019; 20:1514-1521. [DOI: 10.1021/acs.biomac.8b01681] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jingya Qin
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Tianzhi Luo
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Delaware Biotechnology
Institute, Newark, Delaware 19711, United States
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10
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Zhang W, Yu X, Li Y, Su Z, Jandt KD, Wei G. Protein-mimetic peptide nanofibers: Motif design, self-assembly synthesis, and sequence-specific biomedical applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.12.001] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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11
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Le PN, Huynh CK, Tran NQ. Advances in thermosensitive polymer-grafted platforms for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:1016-1030. [PMID: 30184725 DOI: 10.1016/j.msec.2018.02.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/16/2017] [Accepted: 02/08/2018] [Indexed: 02/06/2023]
Abstract
Studies on "smart" polymeric material performing environmental stimuli such as temperature, pH, magnetic field, enzyme and photo-sensation have recently paid much attention to practical applications. Among of them, thermo-responsive grafted copolymers, amphiphilic steroids as well as polyester molecules have been utilized in the fabrication of several multifunctional platforms. Indeed, they performed a strikingly functional improvement comparing to some original materials and exhibited a holistic approach for biomedical applications. In case of drug delivery systems (DDS), there has been some successful proof of thermal-responsive grafted platforms on clinical trials such as ThermoDox®, BIND-014, Cynviloq IG-001, Genexol-PM, etc. This review would detail the recent progress and highlights of some temperature-responsive polymer-grafted nanomaterials or hydrogels in the 'smart' DDS that covered from synthetic polymers to nature-driven biomaterials and novel generations of some amphiphilic functional platforms. These approaches could produce several types of smart biomaterials for human health care in future.
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Affiliation(s)
- Phung Ngan Le
- Institute of Research and Development, Duy Tan University, Da Nang City 550000, Viet Nam; Institute of Applied Materials Science, Vietnam Academy of Science and Technology, 1A TL29, District 12, Hochiminh City 700000, Viet Nam
| | - Chan Khon Huynh
- Biomedical Engineering Department, International University, National Universities in HCMC, HCMC 70000, Viet Nam
| | - Ngoc Quyen Tran
- Institute of Research and Development, Duy Tan University, Da Nang City 550000, Viet Nam; Institute of Applied Materials Science, Vietnam Academy of Science and Technology, 1A TL29, District 12, Hochiminh City 700000, Viet Nam; Graduate School of Science and Technology Viet Nam, Vietnam Academy of Science and Technology, 1A TL29, District 12, Hochiminh City 700000, Viet Nam.
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12
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Dual-targeting peptide probe for sequence- and structure-sensitive sensing of serum albumin. Biosens Bioelectron 2017; 94:657-662. [DOI: 10.1016/j.bios.2017.03.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/24/2017] [Accepted: 03/31/2017] [Indexed: 01/06/2023]
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13
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Zhou M, Shmidov Y, Matson JB, Bitton R. Multi-scale characterization of thermoresponsive dendritic elastin-like peptides. Colloids Surf B Biointerfaces 2017; 153:141-151. [PMID: 28236790 DOI: 10.1016/j.colsurfb.2017.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/18/2017] [Accepted: 02/12/2017] [Indexed: 12/01/2022]
Abstract
Elastin like peptides (ELPs)-polypeptides based on the protein elastin-are used widely as thermoresponsive components in biomaterials due to the presence of a sharp soluble-to-insoluble phase change at a characteristic transition temperature (Tt). While linear ELPs have been thoroughly studied, few investigations into branched ELPs have been carried out. Using lysine amino acids as branching and terminal units with 1-3 pentameric repeats between each branch, ELP dendrimers were prepared by solid-phase peptide synthesis with molecular weights as high as 14kDa. A conformation change from random coil to β-turn upon heating through the Tt, typical of ELPs, was observed by circular dichroism spectroscopy for all peptides. The high molecular weights of these peptides enabled the use of characterization techniques typically reserved for polymers. Variable-temperature small-angle X-ray scattering measurements in dilute solution revealed an increase in size and fractal dimension upon heating, even well below the Tt. These results were corroborated by cryogenic transmission electron microscopy, which confirmed the presence of aggregates below the Tt, and micro differential scanning calorimetry, which showed a broad endothermic peak below the Tt. These results collectively indicate the presence of a pre-coacervation step in the phase transition of ELP dendrimers.
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Affiliation(s)
- Mingjun Zhou
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States
| | - Yulia Shmidov
- Department of Chemical Engineering and the Ilze Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - John B Matson
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States.
| | - Ronit Bitton
- Department of Chemical Engineering and the Ilze Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
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14
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Goto M, Endo T. High-molecular-weight poly(Gly-Val-Gly-Val-Pro) synthesis through microwave irradiation. J Pept Sci 2016; 22:452-60. [PMID: 27352997 DOI: 10.1002/psc.2866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/27/2016] [Accepted: 01/28/2016] [Indexed: 11/06/2022]
Abstract
In this study, we synthesized a polypeptide from its pentapeptide unit using microwave irradiation. Effective methods for polypeptide synthesis from unit peptides have not been reported. Here, we used a key elastin peptide, H-GlyValGlyValPro-OH (GVGVP), as the monomer peptide. It is difficult to obtain poly(Gly-Val-Gly-Val-Pro) (poly(GVGVP)) from the pentapeptide unit of elastin, GVGVP, via polycondensation. Poly(GVGVP) prepared from genetically recombinant Escherichia coli is a well-known temperature-sensitive polypeptide, and this temperature sensitivity is known as the lower critical solution temperature. When microwave irradiation was performed in the presence of various additives, the pentapeptide (GVGVP) polycondensation reaction proceeded smoothly, resulting in a product with a high molecular weight in a relatively good yield. The reaction conditions, like microwave irradiation, coupling agents, and solvents, were optimized to increase the reaction efficiency. The product exhibited a molecular weight greater than Mr 7000. Further, the product could be synthesized on a gram scale. The synthesized polypeptide exhibited a temperature sensitivity that was similar to that of poly(GVGVP) prepared from genetically recombinant E. coli. Therefore, this technique offers a facile and quick approach to prepare polypeptides in large amounts. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Mitsuaki Goto
- Molecular Engineering Institute, Kinki University, 11-6 Kayanomori, Iizuka, Fukuoka, 820-8555, Japan
| | - Takeshi Endo
- Molecular Engineering Institute, Kinki University, 11-6 Kayanomori, Iizuka, Fukuoka, 820-8555, Japan
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15
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Navon Y, Bitton R. Elastin-Like Peptides (ELPs) - Building Blocks for Stimuli-Responsive Self-Assembled Materials. Isr J Chem 2016. [DOI: 10.1002/ijch.201500016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yotam Navon
- Chemical Engineering; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel
| | - Ronit Bitton
- Chemical Engineering; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel
- Ilse Katz Institute for Nanoscale Science and Technology Institution; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel)
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16
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Wan J, Alewood PF. Peptide-Decorated Dendrimers and Their Bioapplications. Angew Chem Int Ed Engl 2016; 55:5124-34. [DOI: 10.1002/anie.201508428] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/01/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Jingjing Wan
- Institute of Molecular Bioscience; The University of Queensland; 306 Carmody Road St Lucia QLD 4072 Australia
| | - Paul F. Alewood
- Institute of Molecular Bioscience; The University of Queensland; 306 Carmody Road St Lucia QLD 4072 Australia
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17
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Wan J, Alewood PF. Mit Peptiden dekorierte Dendrimere und ihre biotechnologische Nutzung. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201508428] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jingjing Wan
- Institute of Molecular Bioscience; The University of Queensland; 306 Carmody Road St Lucia QLD 4072 Australien
| | - Paul F. Alewood
- Institute of Molecular Bioscience; The University of Queensland; 306 Carmody Road St Lucia QLD 4072 Australien
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18
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Kojima C, Fukushima D. Applications of Gold Nanoparticle-Loaded Thermosensitive Elastin-Mimetic Dendrimer to Photothermal Therapy. J PHOTOPOLYM SCI TEC 2016. [DOI: 10.2494/photopolymer.29.519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Navon Y, Zhou M, Matson JB, Bitton R. Dendritic Elastin-like Peptides: The Effect of Branching on Thermoresponsiveness. Biomacromolecules 2015; 17:262-70. [DOI: 10.1021/acs.biomac.5b01371] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Mingjun Zhou
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - John B. Matson
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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20
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Liu Y, Kang Y, Wang J, Wang Z, Chen G, Jiang M. Sequence-Defined Peptidocopolymers: The Effect of Small Molecular Linkers. Biomacromolecules 2015; 16:3995-4003. [DOI: 10.1021/acs.biomac.5b01348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yijiang Liu
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai, 200433 China
| | - Yu Kang
- College
of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, People’s Republic of China
| | - Jue Wang
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai, 200433 China
| | - Zheyu Wang
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai, 200433 China
| | - Guosong Chen
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai, 200433 China
| | - Ming Jiang
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai, 200433 China
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21
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Fukushima D, Sk UH, Sakamoto Y, Nakase I, Kojima C. Dual stimuli-sensitive dendrimers: Photothermogenic gold nanoparticle-loaded thermo-responsive elastin-mimetic dendrimers. Colloids Surf B Biointerfaces 2015; 132:155-60. [PMID: 26037705 DOI: 10.1016/j.colsurfb.2015.05.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/24/2015] [Accepted: 05/07/2015] [Indexed: 11/19/2022]
Abstract
Dendrimers are synthetic macromolecules with unique structures that can work as nanoplatforms for both photothermogenic gold nanoparticles (AuNPs) and thermosensitive elastin-like peptides (ELPs) with valine-proline-glycine-valine-glycine (VPGVG) repeats. In this study, photothermogenic AuNPs were loaded into thermo-responsive elastin-mimetic dendrimers (dendrimers conjugating ELPs at their periphery) to produce dual stimuli-sensitive nanoparticles. Polyamidoamine G4 dendrimers were modified with acetylated VPGVG and (VPGVG)2, and the resulting materials were named ELP1-den and ELP2-den, respectively. The AuNPs were prepared by the reduction of Au ions using a dendrimer-nanotemplated method. The AuNP-loaded elastin-mimetic dendrimers exhibited photothermal properties. ELP1-den and ELP2-den showed similar temperature-dependent changes in their conformations. Phase transitions were observed at around 55°C and 35°C for the AuNP-loaded ELP1-den and AuNP-loaded ELP2-den, respectively, but not for the corresponding PEGylated dendrimer. In contrast to the AuNP-loaded PEGylated dendrimer, AuNP-loaded ELP2-den readily associated with cells and induced efficient photocytotoxicity at 37°C. The cell association and the photocytotoxicity properties of AuNP-loaded ELP2-den could be controlled by temperature. These results therefore suggest that dual stimuli-sensitive dendrimer nanoparticles of this type could be used for photothermal therapy.
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Affiliation(s)
- Daichi Fukushima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Ugir Hossain Sk
- Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Yasuhiro Sakamoto
- Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Ikuhiko Nakase
- Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Chie Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan.
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22
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Das AK, Hsiao PY. Charged dendrimers under the action of AC electric fields: breathing characteristics of molecular size, polarizations, and ion distributions. J Chem Phys 2015; 142:084902. [PMID: 25725752 DOI: 10.1063/1.4908563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Langevin dynamics simulations are performed to study the response of charged dendrimers in alternating current electric fields in 3:1 salt solutions. Time evolutions of molecular size show breathing characteristics which take saw-tooth-like patterns in square-wave electric fields and undulated sine-function ones in sine-wave fields. Detailed study reveals how the dendrimer and condensed ions oscillate in the electric fields, which result in polarization of the molecule. To effect a significant deformation of the dendrimer, the applied field amplitude must be larger than some critical strength Ecrit and the field frequency smaller than a threshold fcrit. The response behavior is characterized by two relaxation times in square-wave fields, both of which decrease linearly with the strong field strength larger than Ecrit. In sine-wave fields, the molecular size exhibits interesting hysteretic behavior in plotting the curves with the field variation. A Maxwell-Wagner type polarization theory is derived and proved by simulations, which connects fcrit with the strength of the applied electric field.
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Affiliation(s)
- Ashok K Das
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Pai-Yi Hsiao
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan
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23
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Kojima C, Sk UH, Fukushima D, Irie K, Akazawa N, Umeda M, Niidome T. Effect of main chain conformation on thermosensitivity in elastin-like peptide-grafted polylysine. RSC Adv 2015. [DOI: 10.1039/c5ra23865j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Conformation change of the main chain promoted the phase transition of elastin-like peptide-grafted polymer.
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Affiliation(s)
- Chie Kojima
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka Prefecture University
- Sakai
- Japan
| | - Ugir Hossain Sk
- Nanoscience and Nanotechnology Research Center
- Research Organization for the 21st Century
- Osaka Prefecture University
- Sakai
- Japan
| | - Daichi Fukushima
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka Prefecture University
- Sakai
- Japan
| | - Kotaro Irie
- Nanoscience and Nanotechnology Research Center
- Research Organization for the 21st Century
- Osaka Prefecture University
- Sakai
- Japan
| | - Naotoshi Akazawa
- Department of Applied Chemistry and Biochemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Masafumi Umeda
- Department of Applied Chemistry and Biochemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| | - Takuro Niidome
- Department of Applied Chemistry and Biochemistry
- Graduate School of Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
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