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Liang W, Zheng S, Shu Y, Huang J. Machine Learning Optimizing Enzyme/ZIF Biocomposites for Enhanced Encapsulation Efficiency and Bioactivity. JACS AU 2024; 4:3170-3182. [PMID: 39211601 PMCID: PMC11350574 DOI: 10.1021/jacsau.4c00485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 09/04/2024]
Abstract
In this study, we present the first example of using a machine learning (ML)-assisted design strategy to optimize the synthesis formulation of enzyme/ZIFs (zeolitic imidazolate framework) for enhanced performance. Glucose oxidase (GOx) and horseradish peroxidase (HRP) were chosen as model enzymes, while Zn(eIM)2 (eIM = 2-ethylimidazolate) was selected as the model ZIF to test our ML-assisted workflow paradigm. Through an iterative ML-driven training-design-synthesis-measurement workflow, we efficiently discovered GOx/ZIF (G151) and HRP/ZIF (H150) with their overall performance index (OPI) values (OPI represents the product of encapsulation efficiency (E in %), retained enzymatic activity (A in %), and thermal stability (T in %)) at least 1.3 times higher than those in systematic seed data studies. Furthermore, advanced statistical methods derived from the trained random forest model qualitatively and quantitatively reveal the relationship among synthesis, structure, and performance in the enzyme/ZIF system, offering valuable guidance for future studies on enzyme/ZIFs. Overall, our proposed ML-assisted design strategy holds promise for accelerating the development of enzyme/ZIFs and other enzyme immobilization systems for biocatalysis applications and beyond, including drug delivery and sensing, among others.
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Affiliation(s)
- Weibin Liang
- School of Chemical and Biomolecular
Engineering, The University of Sydney, Darlington, NSW 2008, Australia
| | | | - Ying Shu
- School of Chemical and Biomolecular
Engineering, The University of Sydney, Darlington, NSW 2008, Australia
| | - Jun Huang
- School of Chemical and Biomolecular
Engineering, The University of Sydney, Darlington, NSW 2008, Australia
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2
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Kalitnik A, Szefczyk M, Wojciechowska AW, Wojciechowski JW, Gąsior-Głogowska M, Olesiak-Bańska J, Kotulska M. Cytotoxic Staphylococcus aureus PSMα3 inhibits the aggregation of human insulin in vitro. Phys Chem Chem Phys 2024; 26:15587-15599. [PMID: 38757742 DOI: 10.1039/d4cp00669k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Phenol-soluble modulins (PSMs) are extracellular short amphipathic peptides secreted by the bacteria Staphylococcus aureus (S. aureus). They play an essential role in the bacterial lifecycle, biofilm formation, and stabilisation. From the PSM family, PSMα3 has been of special interest recently due to its cytotoxicity and highly stable α-helical conformation, which also remains in its amyloid fibrils. In particular, PSMα3 fibrils were shown to be composed of self-associating "sheets" of α-helices oriented perpendicular to the fibril axis, mimicking the architecture of canonical cross-β fibrils. Therefore, they were called cross-α-fibrils. PSMα3 was synthesised and verified for identity with wild-type sequences (S. aureus). Then, using several experimental techniques, we evaluated its propensity for in vitro aggregation. According to our findings, synthetic PSMα3 (which lacks the N-terminal formyl groups found in bacteria) does not form amyloid fibrils and maintains α-helical conformation in a soluble monomeric form for several days of incubation. We also evaluated the influence of PSMα3 on human insulin fibrillation in vitro, using a variety of experimental approaches in combination with computational molecular studies. First, it was shown that PSMα3 drastically inhibits the fibrillation of human insulin. The anti-fibrillation effect of PSMα3 was concentration-dependent and required a concentration ratio of PSMα3: insulin equal to or above 1 : 100. Molecular modelling revealed that PSMα3 most likely inhibits the production of insulin primary nuclei by competing for residues involved in its dimerization.
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Affiliation(s)
- Aleksandra Kalitnik
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
| | - Monika Szefczyk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Alicja W Wojciechowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
| | - Jakub W Wojciechowski
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
| | - Marlena Gąsior-Głogowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
| | - Joanna Olesiak-Bańska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Małgorzata Kotulska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland.
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3
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Szefczyk M, Szulc N, Gąsior-Głogowska M, Bystranowska D, Żak A, Sikora A, Polańska O, Ożyhar A, Berlicki Ł. The application of the hierarchical approach for the construction of foldameric peptide self-assembled nanostructures. SOFT MATTER 2023; 19:3828-3840. [PMID: 37191235 DOI: 10.1039/d3sm00005b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In this paper, we show that a hierarchical approach for the construction of nanofibrils based on α,β-peptide foldamers is a rational method for the design of novel self-assembled nanomaterials based on peptides. Incorporation of a trans-(1S,2S)-2-aminocyclopentanecarboxylic acid residue into the outer positions of the model coiled-coil peptide led to the formation of helical foldamers, which was determined by circular dichroism (CD) and vibrational spectroscopy. The oligomerization state of the obtained peptides in water was established by analytical ultracentrifugation (AUC). The thioflavin T assay and Congo red methods showed that the obtained α,β-peptides possess a strong tendency to aggregate, leading to the formation of self-assembled nanostructures, which were assessed by microscopic techniques. The location of the β-amino acid in the heptad repeat of the coiled-coil structure proved to have an influence on the secondary structure of the obtained peptides and on the morphology of the self-assembled nanostructures.
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Affiliation(s)
- Monika Szefczyk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Natalia Szulc
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland
| | - Marlena Gąsior-Głogowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Dominika Bystranowska
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Andrzej Żak
- Electron Microscopy Laboratory, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Andrzej Sikora
- Faculty of Electronics, Photonics and Microsystems, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Oliwia Polańska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Andrzej Ożyhar
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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Zinc oxide loaded chitosan-elastin-sodium alginate nanocomposite gel using freeze gelation for enhanced adipose stem cell proliferation and antibacterial properties. Int J Biol Macromol 2023; 233:123519. [PMID: 36758760 DOI: 10.1016/j.ijbiomac.2023.123519] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 02/10/2023]
Abstract
Hydrogels have been the material of choice for regenerative medicine applications due to their biocompatibility that can facilitate cellular attachment and proliferation. The present study aimed at constructing a porous hydrogel composite scaffold (chitosan, sodium alginate and elastin) for the repair of chronic skin wounds. Chitosan-based hydrogel incorporating varying concentrations of zinc oxide nanoparticles i.e. ZnO-NPs (0, 0.001, 0.01, 0.1 and 1 % w/w) as the antimicrobial agent tested against Escherichia coli (E.coli) and Staphylococcus aureus (S. aureus) exhibited good antibacterial activities. ZnO-NPs were characterized by UV visible spectroscopy, Scanning electron microscopy (SEM) analysis, Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis. Fabricated gels were characterized by SEM analysis, FTIR, XRD, swelling ratio, degradation behavior and controlled release kinetics of ZnO-NPs. In vitro cytocompatibility of the composite was investigated using human adipose stem cells (ADSCs) by MTT and lactate dehydrogenase (LDH) assay, further assessed by SEM analysis and PKH26 staining. The SEM and XRD analysis confirmed the successful loading of ZnO-NPs into these scaffolds. Fluorescence PKH26 stained images and SEM analysis of ADSCs seeded scaffolds revealed biocompatible nature. The findings suggested that the developed composite gels have potential clinically for tissue engineering and chronic wound treatment.
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Haas S, Desombre M, Kirschhöfer F, Huber MC, Schiller SM, Hubbuch J. Purification of a Hydrophobic Elastin-Like Protein Toward Scale-Suitable Production of Biomaterials. Front Bioeng Biotechnol 2022; 10:878838. [PMID: 35814018 PMCID: PMC9257828 DOI: 10.3389/fbioe.2022.878838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/10/2022] [Indexed: 11/13/2022] Open
Abstract
Elastin-like proteins (ELPs) are polypeptides with potential applications as renewable bio-based high-performance polymers, which undergo a stimulus-responsive reversible phase transition. The ELP investigated in this manuscript—ELP[V2Y-45]—promises fascinating mechanical properties in biomaterial applications. Purification process scalability and purification performance are important factors for the evaluation of potential industrial-scale production of ELPs. Salt-induced precipitation, inverse transition cycling (ITC), and immobilized metal ion affinity chromatography (IMAC) were assessed as purification protocols for a polyhistidine-tagged hydrophobic ELP showing low-temperature transition behavior. IMAC achieved a purity of 86% and the lowest nucleic acid contamination of all processes. Metal ion leakage did not propagate chemical modifications and could be successfully removed through size-exclusion chromatography. The simplest approach using a high-salt precipitation resulted in a 60% higher target molecule yield compared to both other approaches, with the drawback of a lower purity of 60% and higher nucleic acid contamination. An additional ITC purification led to the highest purity of 88% and high nucleic acid removal. However, expensive temperature-dependent centrifugation steps are required and aggregation effects even at low temperatures have to be considered for the investigated ELP. Therefore, ITC and IMAC are promising downstream processes for biomedical applications with scale-dependent economical costs to be considered, while salt-induced precipitation may be a fast and simple alternative for large-scale bio-based polymer production.
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Affiliation(s)
- Sandra Haas
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Monika Desombre
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Frank Kirschhöfer
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Matthias C. Huber
- Center for Biosystems Analysis, Albert‐Ludwigs‐University Freiburg, Freiburg, Germany
- Cluster of Excellence livMatS @ FIT, Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Freiburg, Germany
| | - Stefan M. Schiller
- Center for Biosystems Analysis, Albert‐Ludwigs‐University Freiburg, Freiburg, Germany
- Cluster of Excellence livMatS @ FIT, Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Freiburg, Germany
| | - Jürgen Hubbuch
- Institute of Process Engineering in Life Sciences, Section IV: Molecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- *Correspondence: Jürgen Hubbuch,
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6
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Komorek P, Jachimska B, Brand I. Adsorption of lysozyme on gold surfaces in the presence of an external electric potential. Bioelectrochemistry 2021; 142:107946. [PMID: 34507162 DOI: 10.1016/j.bioelechem.2021.107946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/30/2021] [Accepted: 08/29/2021] [Indexed: 10/20/2022]
Abstract
Adsorbed protein films consist of essential building blocks of many biotechnological and biomedical devices. The electrostatic potential may significantly modulate the protein behaviour on surfaces, affecting their structure and biological activity. In this study, lysozyme was used to investigate the effects of applied electric potentials on adsorption and the protein structure. The pH and the surface charge determine the amount and secondary structure of adsorbed lysozyme on a gold surface. In-situ measurements using polarization modulation infrared reflection absorption spectroscopy indicated that the concentration of both the adsorbed anions and the lysozyme led to conformational changes in the protein film, which was demonstrated by a greater amount of aggregated β-sheets in films fabricated at net positive charges of the Au electrode (Eads > Epzc). The changes in secondary structure involved two parallel processes. One comprised changes in the hydration/hydrogen-bond network at helices, leading to diverse helical structures: α-, 310- and/or π-helices. In the second process β-turns, β-sheets, and random coils displayed an ability to form aggregated β-sheet structures. The study illuminates the understanding of electrical potential-dependent changes involved in the protein misfolding process.
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Affiliation(s)
- Paulina Komorek
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow, Poland
| | - Barbara Jachimska
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow, Poland.
| | - Izabella Brand
- Department of Chemistry, University of Oldenburg, 26111 Oldenburg, Germany.
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Wu L, Wang Q, Li Y, Yang M, Dong M, He X, Zheng S, Cao CY, Zhou Z, Zhao Y, Li QL. A Dopamine Acrylamide Molecule for Promoting Collagen Biomimetic Mineralization and Regulating Crystal Growth Direction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39142-39156. [PMID: 34433244 DOI: 10.1021/acsami.1c12412] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The reconstruction of the intra/interfibrillar mineralized collagen microstructure is extremely important in biomaterial science and regeneration medicine. However, certain problems, such as low efficiency and long period of mineralization, are apparent, and the mechanism of interfibrillar mineralization is often neglected in the present literature. Thus, we propose a novel model of biomimetic collagen mineralization that uses molecules with the dual function of cross-linking collagen and regulating collagen mineralization to construct the intrafibrillar and interfibrillar collagen mineralization of the structure of mineralized collagen hard tissues. In the present study completed in vitro, N-2-(3,4-dihydroxyphenyl) acrylamide (DAA) is used to bind and cross-link collagen molecules and further stabilize the self-assembled collagen fibers. The DAA-collagen complex provides more affinity with calcium and phosphate ions, which can reduce the calcium phosphate/collagen interfacial energy to promote hydroxyapatite (HA) nucleation and accelerate the rate of collagen fiber mineralization. Besides inducing intrafibrillar mineralization, the DAA-collagen complex mineralization template can realize interfibrillar mineralization with the c-axis of the HA crystal on the surface of collagen fibers and between fibers that are parallel to the long axis of collagen fibers. The DAA-collagen complex, as a new type of mineralization template, may provide a new collagen mineralization strategy to produce a mineralized scaffold material for tissue engineering or develop bone-like materials.
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Affiliation(s)
- Leping Wu
- Department of Plastic Surgery, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, China
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Qingqing Wang
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Yuzhu Li
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Mengmeng Yang
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Menglu Dong
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Xiaoxue He
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Shunli Zheng
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Chris Ying Cao
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
| | - Zheng Zhou
- School of Dentistry, University of Detroit Mercy, Detroit, Michigan 48208-2576, United States
| | - Yuancong Zhao
- Key Lab. of Advanced Technology for Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Quan-Li Li
- Department of Plastic Surgery, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032, China
- Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei 230032, China
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8
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Szefczyk M, Szulc N, Gąsior-Głogowska M, Modrak-Wójcik A, Bzowska A, Majstrzyk W, Taube M, Kozak M, Gotszalk T, Rudzińska-Szostak E, Berlicki Ł. Hierarchical approach for the rational construction of helix-containing nanofibrils using α,β-peptides. NANOSCALE 2021; 13:4000-4015. [PMID: 33471005 DOI: 10.1039/d0nr04313c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The rational design of novel self-assembled nanomaterials based on peptides remains a great challenge in modern chemistry. A hierarchical approach for the construction of nanofibrils based on α,β-peptide foldamers is proposed. The incorporation of a helix-promoting trans-(1S,2S)-2-aminocyclopentanecarboxylic acid residue in the outer positions of the model coiled-coil peptide led to its increased conformational stability, which was established consistently by the results of CD, NMR and FT-IR spectroscopy. The designed oligomerization state in the solution of the studied peptides was confirmed using analytical ultracentrifugation. Moreover, the cyclopentane side chain allowed additional interactions between coiled-coil-like structures to direct the self-assembly process towards the formation of well-defined nanofibrils, as observed using AFM and TEM techniques.
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Affiliation(s)
- Monika Szefczyk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Natalia Szulc
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Marlena Gąsior-Głogowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Anna Modrak-Wójcik
- Division of Biophysics, Faculty of Physics, Institute of Experimental Physics, University of Warsaw, Ludwika Pasteura 5, 02-093 Warsaw, Poland
| | - Agnieszka Bzowska
- Division of Biophysics, Faculty of Physics, Institute of Experimental Physics, University of Warsaw, Ludwika Pasteura 5, 02-093 Warsaw, Poland
| | - Wojciech Majstrzyk
- Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Michał Taube
- Department of Macromolecular Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Maciej Kozak
- Department of Macromolecular Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
- National Synchrotron Radiation Centre SOLARIS, Jagiellonian University, Czerwone Maki 98, 30-392 Kraków, Poland
| | - Teodor Gotszalk
- Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Ewa Rudzińska-Szostak
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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Effects of Heavy Ion Particle Irradiation on Spore Germination of Bacillus spp. from Extremely Hot and Cold Environments. Life (Basel) 2020; 10:life10110264. [PMID: 33143156 PMCID: PMC7693761 DOI: 10.3390/life10110264] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022] Open
Abstract
Extremophiles are optimal models in experimentally addressing questions about the effects of cosmic radiation on biological systems. The resistance to high charge energy (HZE) particles, and helium (He) ions and iron (Fe) ions (LET at 2.2 and 200 keV/µm, respectively, until 1000 Gy), of spores from two thermophiles, Bacillushorneckiae SBP3 and Bacilluslicheniformis T14, and two psychrotolerants, Bacillus sp. A34 and A43, was investigated. Spores survived He irradiation better, whereas they were more sensitive to Fe irradiation (until 500 Gy), with spores from thermophiles being more resistant to irradiations than psychrotolerants. The survived spores showed different germination kinetics, depending on the type/dose of irradiation and the germinant used. After exposure to He 1000 Gy, D-glucose increased the lag time of thermophilic spores and induced germination of psychrotolerants, whereas L-alanine and L-valine increased the germination efficiency, except alanine for A43. FTIR spectra showed important modifications to the structural components of spores after Fe irradiation at 250 Gy, which could explain the block in spore germination, whereas minor changes were observed after He radiation that could be related to the increased permeability of the inner membranes and alterations of receptor complex structures. Our results give new insights on HZE resistance of extremophiles that are useful in different contexts, including astrobiology.
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10
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Destabilisation of the structure of transthyretin is driven by Ca 2. Int J Biol Macromol 2020; 166:409-423. [PMID: 33129902 DOI: 10.1016/j.ijbiomac.2020.10.199] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/08/2020] [Accepted: 10/24/2020] [Indexed: 12/19/2022]
Abstract
Tetrameric transthyretin (TTR) transports thyroid hormones and retinol in plasma and cerebrospinal fluid and performs protective functions under stress conditions. Ageing and mutations result in TTR destabilisation and the formation of the amyloid deposits that dysregulate Ca2+ homeostasis. Our aim was to determine whether Ca2+ affects the structural stability of TTR. We show, using multiple techniques, that Ca2+ does not induce prevalent TTR dissociation and/or oligomerisation. However, in the presence of Ca2+, TTR exhibits altered conformational flexibility and different interactions with the solvent molecules. These structural changes lead to the formation of the sub-populations of non-native TTR conformers and to the destabilisation of the structure of TTR. Moreover, the sub-population of TTR molecules undergoes fragmentation that is augmented by Ca2+. We postulate that Ca2+ constitutes the structural and functional switch between the native and non-native forms of TTR, and therefore tip the balance towards age-dependent pathological calcification.
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11
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Zehra M, Mehmood A, Yar M, Shahzadi L, Riazuddin S. Development of NSAID-loaded nano-composite scaffolds for skin tissue engineering applications. J Biomed Mater Res B Appl Biomater 2020; 108:3064-3075. [PMID: 32619310 DOI: 10.1002/jbm.b.34634] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 04/10/2020] [Accepted: 04/29/2020] [Indexed: 12/12/2022]
Abstract
Scar free healing together with pain management is one of the major considerations in full thickness wound healing. Extensive wounds take longer to heal without any clinical intervention and, hence, need natural or artificial extracellular matrix support for quick skin regeneration. To address these issues, medicated 3D porous biomimetic scaffolds were developed with a unique combination of biopolymers, that is, chitosan, sodium alginate, and elastin, supplemented with a non-steroidal anti-inflammatory drug (NSAID). Scaffolds were physically characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), swelling ratio analysis, and degradation studies. Findings of the performed analyses proved that these skin substitutes suitable for skin tissue engineering applications attributable to their nano-microporous structures (pore size in range of 0.085-256 μm) allowing cell infiltration and high-water absorption capacity for management of wound exudates. Optimal dose of the loaded ibuprofen was estimated by evaluating effect of variable concentrations of ibuprofen (control, ILM-10, ILM-15, and ILM-20) on adipose tissue-derived mesenchymal stem cells (ASCs) proliferation rate. Out of all experimental groups, ILM-20 constructs were found to accelerate the proliferation rate of seeded ASCs confirming their non-cytotoxic characteristics as well potential to be used for translational scaffold-based therapies.
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Affiliation(s)
- Mubashra Zehra
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan.,Wake Forest Institute of Regenerative Medicine, Winston-Salem, North Carolina, USA
| | - Azra Mehmood
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Sheikh Riazuddin
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan.,Jinnah Burn and Reconstructive Surgery Centre, Lahore, Pakistan
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12
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Cobb J, Zai-Rose V, Correia JJ, Janorkar AV. FT-IR Spectroscopic Analysis of the Secondary Structures Present during the Desiccation Induced Aggregation of Elastin-Like Polypeptide on Silica. ACS OMEGA 2020; 5:8403-8413. [PMID: 32309751 PMCID: PMC7161207 DOI: 10.1021/acsomega.0c00271] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 03/06/2020] [Indexed: 05/25/2023]
Abstract
Previously, we found that elastin-like polypeptide (ELP), when dried above the lower critical solution temperature on top of a hydrophilic fused silica disk, exhibited a dynamic coalescence behavior. The ELP initially wet the silica, but over the next 12 h, dewett the surface and formed aggregates of precise sizes and shapes. Using Fourier-transform infrared (FT-IR) spectroscopy, the present study explores the role of secondary structures present in ELP during this progressive desiccation and their effect on aggregate size. The amide I peak (1600-1700 cm-1) in the ELP's FT-IR spectrum was deconvoluted using the second derivative method into eight subpeaks (1616, 1624, 1635, 1647, 1657, 1666, 1680, 1695 cm-1). These peaks were identified to represent extended strands, β-turns, 3(10)-helix, polyproline I, and polyproline II using previous studies on ELP and molecules similar in peptide composition. Positive correlations were established between the various subpeaks, water content, and aggregate size to understand the contributions of the secondary structures in particle formation. The positive correlations suggest that type II β-turns, independent of the water content, contributed to the growth of the aggregates at earlier time points (1-3.5 h). At later time points (6-12 h), the aggregate growth was attributed to the formation of 3(10)-helices that relied on a decrease in water content. Understanding these relationships gives greater control in creating precisely sized aggregates and surface coatings with varying roughness.
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Affiliation(s)
- Jared
S. Cobb
- Department
of Biomedical Materials Science, School of Dentistry and Department of
Cell and Molecular Biology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi 39216, United States
| | - Valeria Zai-Rose
- Department
of Biomedical Materials Science, School of Dentistry and Department of
Cell and Molecular Biology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi 39216, United States
| | - John J. Correia
- Department
of Biomedical Materials Science, School of Dentistry and Department of
Cell and Molecular Biology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi 39216, United States
| | - Amol V. Janorkar
- Department
of Biomedical Materials Science, School of Dentistry and Department of
Cell and Molecular Biology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi 39216, United States
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13
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Pramounmat N, Loney CN, Kim C, Wiles L, Ayers KE, Kusoglu A, Renner JN. Controlling the Distribution of Perfluorinated Sulfonic Acid Ionomer with Elastin-like Polypeptide. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43649-43658. [PMID: 31644259 DOI: 10.1021/acsami.9b11160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Proton-exchange-membrane (PEM)-based devices are promising technologies for hydrogen production and electricity generation. Currently, the amount of expensive platinum catalyst used in these devices must be reduced to be cost-competitive with other technologies. These devices typically contain Nafion ionomer thin films in the catalyst layers, which are responsible for transporting protons and gaseous species to and from electrochemically active sites. The morphology of the Nafion ionomer thin films in the catalyst layers with reduced platinum loading is impacted by interactions with the catalyst and the confinement to nanometer thicknesses, which leads to performance losses in PEM-based devices. In this study, an elastin-like polypeptide (ELP) is designed to modulate the morphology of Nafion ionomer on platinum surfaces. The ELP shows an ability to assemble into a monolayer on platinum and change the ionomer interaction with platinum, thereby modifying its thin-film structure and improving the Nafion ionomer coverage. As a proof of concept, an ELP-modified catalyst ink was prepared and morphological differences were observed. Overall, we discovered an engineered ELP that can modulate the ionomer-catalyst interface in the electrodes of PEM-based devices.
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Affiliation(s)
- Nuttanit Pramounmat
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - Charles N Loney
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - ChulOong Kim
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - Luke Wiles
- Nel Hydrogen Inc. , 10 Technology Drive , Wallingford , Connecticut 06492 , United States
| | - Katherine E Ayers
- Nel Hydrogen Inc. , 10 Technology Drive , Wallingford , Connecticut 06492 , United States
| | - Ahmet Kusoglu
- Energy Conversion Group, Energy Technologies Area , Lawrence Berkeley National Laboratory , 1 Cyclotron Road, MS70-108B , Berkeley , California 94720 , United States
| | - Julie N Renner
- Department of Chemical and Biomolecular Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
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14
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Hansen DC, Zimlich KR, Bennett BN. Inhibition of flash rusting of HY80 by a mussel adhesive protein: Characterizing the interaction of MeFP-5 with a high strength low alloy steel. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Patel M, Park S, Lee HJ, Jeong B. Polypeptide Thermogels as Three-Dimensional Scaffolds for Cells. Tissue Eng Regen Med 2018; 15:521-530. [PMID: 30603576 PMCID: PMC6171707 DOI: 10.1007/s13770-018-0148-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Thermogel is an aqueous solution that exhibits a sol-to-gel transition as the temperature increases. Stem cells, growth factors, and differentiating factors can be incorporated in situ in the matrix during the sol-to-gel transition, leading to the formation of a three-dimensional (3D) cell-culture scaffold. METHODS The uses of thermogelling polypeptides, such as collagen, Matrigel™, elastin-like polypeptides, and synthetic polypeptides, as 3D scaffolds of cells, are summarized in this paper. RESULTS The timely supply of growth factors to the cells, cell survival, and metabolite removal is to be insured in the cell culture matrix. Various growth factors were incorporated in the matrix during the sol-to-gel transition of the thermogelling polypeptide aqueous solutions, and preferential differentiation of the incorporated stem cells into specific target cells were investigated. In addition, modulus of the matrix was controlled by post-crosslinking reactions of thermogels or employing composite systems. Chemical functional groups as well as biological factors were selected appropriately for targeted differentiation of the incorporated stem cells. CONCLUSION In addition to all the advantages of thermogels including mild conditions for cell-incorporation and controlled supplies of the growth factors, polypeptide thermogels provide neutral pH environments to the cells during the degradation of the gel. Polypeptide thermogels as an injectable scaffold can be a promising system for their eventual in vivo applications in stem cell therapy.
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Affiliation(s)
- Madhumita Patel
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
| | - Sohee Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
| | - Hyun Jung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
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16
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Selig O, Cunha AV, van Eldijk MB, van Hest JCM, Jansen TLC, Bakker HJ, Rezus YLA. Temperature-Induced Collapse of Elastin-like Peptides Studied by 2DIR Spectroscopy. J Phys Chem B 2018; 122:8243-8254. [PMID: 30067028 PMCID: PMC6143280 DOI: 10.1021/acs.jpcb.8b05221] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/31/2018] [Indexed: 12/21/2022]
Abstract
Elastin-like peptides are hydrophobic biopolymers that exhibit a reversible coacervation transition when the temperature is raised above a critical point. Here, we use a combination of linear infrared spectroscopy, two-dimensional infrared spectroscopy, and molecular dynamics simulations to study the structural dynamics of two elastin-like peptides. Specifically, we investigate the effect of the solvent environment and temperature on the structural dynamics of a short (5-residue) elastin-like peptide and of a long (450-residue) elastin-like peptide. We identify two vibrational energy transfer processes that take place within the amide I' band of both peptides. We observe that the rate constant of one of the exchange processes is strongly dependent on the solvent environment and argue that the coacervation transition is accompanied by a desolvation of the peptide backbone where up to 75% of the water molecules are displaced. We also study the spectral diffusion dynamics of the valine(1) residue that is present in both peptides. We find that these dynamics are relatively slow and indicative of an amide group that is shielded from the solvent. We conclude that the coacervation transition of elastin-like peptides is probably not associated with a conformational change involving this residue.
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Affiliation(s)
- Oleg Selig
- AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Ana V. Cunha
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Mark B. van Eldijk
- Institute
for Molecules and Materials, Radboud University
Nijmegen, Heyendaalseweg
135, 6525 AJ Nijmegen, The Netherlands
| | - Jan C. M. van Hest
- Department
of Chemical Engineering and Chemistry Kranenveld, Eindhoven University of Technology, Building 14, 5600 MB Eindhoven, The Netherlands
| | - Thomas L. C. Jansen
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Huib J. Bakker
- FOM
institute AMOLF, Science
Park 104, 1098 XG Amsterdam, The Netherlands
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17
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Mozhdehi D, Luginbuhl KM, Simon JR, Dzuricky M, Berger R, Varol HS, Huang FC, Buehne KL, Mayne NR, Weitzhandler I, Bonn M, Parekh SH, Chilkoti A. Genetically encoded lipid-polypeptide hybrid biomaterials that exhibit temperature-triggered hierarchical self-assembly. Nat Chem 2018; 10:496-505. [PMID: 29556049 PMCID: PMC6676901 DOI: 10.1038/s41557-018-0005-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 01/11/2018] [Indexed: 11/09/2022]
Abstract
Post-translational modification of proteins is a strategy widely used in biological systems. It expands the diversity of the proteome and allows for tailoring of both the function and localization of proteins within cells as well as the material properties of structural proteins and matrices. Despite their ubiquity in biology, with a few exceptions, the potential of post-translational modifications in biomaterials synthesis has remained largely untapped. As a proof of concept to demonstrate the feasibility of creating a genetically encoded biohybrid material through post-translational modification, we report here the generation of a family of three stimulus-responsive hybrid materials-fatty-acid-modified elastin-like polypeptides-using a one-pot recombinant expression and post-translational lipidation methodology. These hybrid biomaterials contain an amphiphilic domain, composed of a β-sheet-forming peptide that is post-translationally functionalized with a C14 alkyl chain, fused to a thermally responsive elastin-like polypeptide. They exhibit temperature-triggered hierarchical self-assembly across multiple length scales with varied structure and material properties that can be controlled at the sequence level.
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Affiliation(s)
- Davoud Mozhdehi
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Kelli M Luginbuhl
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Joseph R Simon
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Michael Dzuricky
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Rüdiger Berger
- Physics at Interfaces, Max Planck Institute for Polymer Research, Mainz, Germany
| | - H Samet Varol
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Mainz, Germany
| | - Fred C Huang
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Kristen L Buehne
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Nicholas R Mayne
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Isaac Weitzhandler
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Mischa Bonn
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Mainz, Germany
| | - Sapun H Parekh
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Mainz, Germany
| | - Ashutosh Chilkoti
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA.
- Department of Biomedical Engineering, Duke University, Durham, NC, USA.
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18
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Bahniuk MS, Alshememry AK, Elgersma SV, Unsworth LD. Self-assembly/disassembly hysteresis of nanoparticles composed of marginally soluble, short elastin-like polypeptides. J Nanobiotechnology 2018; 16:15. [PMID: 29454362 PMCID: PMC5816514 DOI: 10.1186/s12951-018-0342-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 02/09/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Elastin-like polypeptides (ELPs) are a fascinating biomaterial that has undergone copious development for a variety of therapeutic applications including as a nanoscale drug delivery vehicle. A comprehensive understanding of ELP self-assembly is lacking and this knowledge gap impedes the advancement of ELP-based biomaterials into the clinical realm. The systematic examination of leucine-containing ELPs endeavors to expand existing knowledge about fundamental assembly-disassembly behaviours. RESULTS It was observed that these marginally soluble, short ELPs tend to behave consistently with previous observations related to assembly-related ELP phase transitions but deviated in their disassembly. It was found that chain length, concentration and overall sequence hydrophobicity may influence the irreversible formation of sub-micron particles as well as the formation of multi-micron scale, colloidally unstable aggregates. Amino acid composition affected surface charge and packing density of the particles. Particle stability upon dilution was found to vary depending upon chain length and hydrophobicity, with particles composed of longer and/or more hydrophobic ELPs being more resistant to disassembly upon isothermal dilution. CONCLUSIONS Taken together, these results suggest marginally soluble ELPs may self-assemble but not disassemble as expected and that parameters including particle size, zeta potential and dilution resistance would benefit from widespread systematic evaluations. This information has the potential to reveal novel preparation methods capable of expanding the utility of all existing ELP-based biomaterials.
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Affiliation(s)
- Markian S. Bahniuk
- Department of Biomedical Engineering, 1098 Research Transition Facility, University of Alberta, 8308-114 Street, Edmonton, AB T6G 2V2 Canada
| | - Abdullah K. Alshememry
- Faculty of Pharmacy and Pharmaceutical Sciences, 2-35B Medical Sciences Building, University of Alberta, Edmonton, AB T6G 2H1 Canada
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Scott V. Elgersma
- Department of Chemical and Materials Engineering, University of Alberta, 12th Floor-Donadeo Innovation Centre for Engineering, 9211-116 Street, Edmonton, AB T6G 1H9 Canada
| | - Larry D. Unsworth
- Department of Biomedical Engineering, 1098 Research Transition Facility, University of Alberta, 8308-114 Street, Edmonton, AB T6G 2V2 Canada
- Department of Chemical and Materials Engineering, University of Alberta, 12th Floor-Donadeo Innovation Centre for Engineering, 9211-116 Street, Edmonton, AB T6G 1H9 Canada
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19
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Araújo A, Olsen BD, Machado AV. Engineering Elastin-Like Polypeptide-Poly(ethylene glycol) Multiblock Physical Networks. Biomacromolecules 2018; 19:329-339. [PMID: 29253332 DOI: 10.1021/acs.biomac.7b01424] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Hybrids of protein biopolymers and synthetic polymers are a promising new class of soft materials, as the advantages of each component can be complementary. A recombinant elastin-like polypeptide (ELP) was conjugated to poly(ethylene glycol) (PEG) by macromolecular coupling in solution to form multiblock ELP-PEG copolymers. The hydrated copolymer preserved the thermoresponsive properties from the ELP block and formed hydrogels with different transition temperatures depending on salt concentration. Small angle scattering indicates that the copolymer hydrogels form sphere-like aggregates with a "fuzzy" interface, while the films form a fractal network of nanoscale aggregates. The use of solutions with different salt concentrations to prepare the hydrogels was found to influence the transition temperature, the mechanical properties, and the size of the nanoscale structure of the hydrogel without changing the secondary structure of the ELP. The salt variation and the addition of a plasticizer also affected the nanoscale structure and the mechanical characteristics of the films.
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Affiliation(s)
- Andreia Araújo
- Institute for Polymers and Composites/I3N, University of Minho , Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Bradley D Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Ana Vera Machado
- Institute for Polymers and Composites/I3N, University of Minho , Campus de Azurém, 4800-058 Guimarães, Portugal
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20
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Park J, Kim JY, Choi SK, Kim JY, Kim JH, Jeon WB, Lee JE. Thermo-sensitive assembly of the biomaterial REP reduces hematoma volume following collagenase-induced intracerebral hemorrhage in rats. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1853-1862. [DOI: 10.1016/j.nano.2017.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 03/20/2017] [Accepted: 04/03/2017] [Indexed: 10/19/2022]
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21
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Shuturminska K, Tarakina NV, Azevedo HS, Bushby AJ, Mata A, Anderson P, Al-Jawad M. Elastin-Like Protein, with Statherin Derived Peptide, Controls Fluorapatite Formation and Morphology. Front Physiol 2017. [PMID: 28642715 PMCID: PMC5462913 DOI: 10.3389/fphys.2017.00368] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The process of enamel biomineralization is multi-step, complex and mediated by organic molecules. The lack of cells in mature enamel leaves it unable to regenerate and hence novel ways of growing enamel-like structures are currently being investigated. Recently, elastin-like protein (ELP) with the analog N-terminal sequence of statherin (STNA15-ELP) has been used to regenerate mineralized tissue. Here, the STNA15-ELP has been mineralized in constrained and unconstrained conditions in a fluoridated solution. We demonstrate that the control of STNA15-ELP delivery to the mineralizing solution can form layered ordered fluorapatite mineral, via a brushite precursor. We propose that the use of a constrained STNA15-ELP system can lead to the development of novel, bioinspired enamel therapeutics.
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Affiliation(s)
- Kseniya Shuturminska
- Dental Physical Sciences Unit, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of LondonLondon, United Kingdom.,School of Engineering and Materials Science, Queen Mary University of LondonLondon, United Kingdom
| | - Nadezda V Tarakina
- School of Engineering and Materials Science, Queen Mary University of LondonLondon, United Kingdom.,Materials Research Institute, Queen Mary University of LondonLondon, United Kingdom
| | - Helena S Azevedo
- School of Engineering and Materials Science, Queen Mary University of LondonLondon, United Kingdom.,Materials Research Institute, Queen Mary University of LondonLondon, United Kingdom.,Institute of Bioengineering, Queen Mary University of LondonLondon, United Kingdom
| | - Andrew J Bushby
- School of Engineering and Materials Science, Queen Mary University of LondonLondon, United Kingdom.,Materials Research Institute, Queen Mary University of LondonLondon, United Kingdom
| | - Alvaro Mata
- School of Engineering and Materials Science, Queen Mary University of LondonLondon, United Kingdom.,Materials Research Institute, Queen Mary University of LondonLondon, United Kingdom.,Institute of Bioengineering, Queen Mary University of LondonLondon, United Kingdom
| | - Paul Anderson
- Dental Physical Sciences Unit, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of LondonLondon, United Kingdom
| | - Maisoon Al-Jawad
- Dental Physical Sciences Unit, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of LondonLondon, United Kingdom.,Materials Research Institute, Queen Mary University of LondonLondon, United Kingdom
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22
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Li Y, Rodriguez-Cabello JC, Aparicio C. Intrafibrillar Mineralization of Self-Assembled Elastin-Like Recombinamer Fibrils. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5838-5846. [PMID: 28127954 DOI: 10.1021/acsami.6b15285] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Biomineralization of bone, a controlled process where hydroxyapatite nanocrystals preferentially deposit in collagen fibrils, is achieved by the interplay of the collagen matrix and noncollagenous proteins. Mimicking intrafibrillar mineralization in synthetic systems is highly attractive for the development of advanced hybrid materials with elaborated morphologies and outstanding mechanical properties, as well as understanding the mechanisms of biomineralization. Inspired by nature, intrafibrillar mineralization of collagen fibrils has been successfully replicated in vitro via biomimetic systems, where acidic polymeric additives are used as analogue of noncollagenous proteins in mediating mineralization. The development of synthetic templates that mimic the structure and functions of collagenous matrix in mineralization has yet to be explored. In this study, we demonstrated that self-assembled fibrils of elastin-like recombinamers (ELRs) can induce intrafibrillar mineralization. The ELRs displayed a disordered structure at low temperature but self-assembled into nanofibrils above its inverse transition temperature. In the presence of the self-assembled ELR fibrils, polyaspartate-stabilized amorphous calcium phosphates preferentially infiltrated into the fibrils and then crystallized into hydroxyapatite nanocrystals with their [001] axes aligned parallel to the long axis of the ELR fibril. As the recombinant technology enables designing and producing well-defined ELRs, their molecular and structural properties can be fine-tuned. By examining the ultrastructure of the self-assembled ELRs fibrils as well as their mineralization, we concluded that the spatial confinement formed by a continuum β-spiral structure in an unperturbed fibrillar structure rather than electrostatic interactions or bioactive sequences in the recombinamer composition played the crucial role in inducing intrafibrillar mineralization.
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Affiliation(s)
- Yuping Li
- Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota , Minneapolis, Minnesota 55455, United States
| | | | - Conrado Aparicio
- Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota , Minneapolis, Minnesota 55455, United States
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23
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Heyda J, Okur HI, Hladílková J, Rembert KB, Hunn W, Yang T, Dzubiella J, Jungwirth P, Cremer PS. Guanidinium can both Cause and Prevent the Hydrophobic Collapse of Biomacromolecules. J Am Chem Soc 2017; 139:863-870. [PMID: 28054487 PMCID: PMC5499822 DOI: 10.1021/jacs.6b11082] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
A combination of Fourier transform
infrared and phase transition
measurements as well as molecular computer simulations, and thermodynamic
modeling were performed to probe the mechanisms by which guanidinium
(Gnd+) salts influence the stability of the collapsed versus
uncollapsed state of an elastin-like polypeptide (ELP), an uncharged
thermoresponsive polymer. We found that the cation’s action
was highly dependent upon the counteranion with which it was paired.
Specifically, Gnd+ was depleted from the ELP/water interface
and was found to stabilize the collapsed state of the macromolecule
when paired with well-hydrated anions such as SO42–. Stabilization in this case occurred via an excluded volume (or
depletion) effect, whereby SO42– was
strongly partitioned away from the ELP/water interface. Intriguingly,
at low salt concentrations, Gnd+ was also found to stabilize
the collapsed state of the ELP when paired with SCN–, which is a strong binder for the ELP. In this case, the anion and
cation were both found to be enriched in the collapsed state of the
polymer. The collapsed state was favored because the Gnd+ cross-linked the polymer chains together. Moreover, the anion helped
partition Gnd+ to the polymer surface. At higher salt concentrations
(>1.5 M), GndSCN switched to stabilizing the uncollapsed state
because
a sufficient amount of Gnd+ and SCN– partitioned
to the polymer surface to prevent cross-linking from occurring. Finally,
in a third case, it was found that salts which interacted in an intermediate
fashion with the polymer (e.g., GndCl) favored the uncollapsed conformation
at all salt concentrations. These results provide a detailed, molecular-level,
mechanistic picture of how Gnd+ influences the stability
of polypeptides in three distinct physical regimes by varying the
anion. It also helps explain the circumstances under which guanidinium
salts can act as powerful and versatile protein denaturants.
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Affiliation(s)
- Jan Heyda
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin für Materialien und Energie , Hahn-Meitner Platz 1, 14109 Berlin, Germany.,Physical Chemistry Department, University of Chemistry and Technology, Prague , Technicka 5, 16628 Prague 6, Czech Republic
| | | | - Jana Hladílková
- Division of Theoretical Chemistry, Lund University , POB 124, 22 100 Lund, Sweden.,Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic , Flemingovo nám. 2, 16610 Prague 6, Czech Republic
| | | | - William Hunn
- Chemistry Department, Texas A&M University , 3255 TAMU, College Station, Texas 77843, United States
| | | | - Joachim Dzubiella
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin für Materialien und Energie , Hahn-Meitner Platz 1, 14109 Berlin, Germany.,Institut für Physik, Humboldt-Universität zu Berlin , Newtonstr. 15, 12489 Berlin, Germany
| | - Pavel Jungwirth
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic , Flemingovo nám. 2, 16610 Prague 6, Czech Republic
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Thapa A, Han W, Simons RH, Chilkoti A, Chi EY, López GP. Effect of detergents on the thermal behavior of elastin-like polypeptides. Biopolymers 2016; 99:55-62. [PMID: 23097230 DOI: 10.1002/bip.22137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Elastin-like polypeptide (ELP) fusions have been designed to allow large-scale, nonchromatographic purification of many soluble proteins by using the inverse transition cycling (ITC) method; however, the sensitivity of the aqueous lower critical solubility phase transition temperature (T(t)) of ELPs to the addition of cosolutes, including detergents, may be a potential hindrance in purification of proteins with surface hydrophobicity in such a manner. To identify detergents that are known to solubilize such proteins (e.g., membrane proteins) and that have little effect on the T(t) of the ELP, we screened a number of detergents with respect to their effects on the T(t) and secondary structures of a model ELP (denoted here as ELP180). We found that mild detergents (e.g., n-dodecyl-β-D-maltoside, Triton-X100, and 3-[(3-cholamidopropyl) dimethylamino]-1-propanesulfonate) do not alter the phase transition behavior or structure (as probed by circular dichroism) of ELP180. This result is in contrast to previous studies that showed a strong effect of other detergents (e.g., sodium dodecylsulfate) on the T(t) of ELPs. Our results clearly indicate that mild detergents do not preclude ITC-based separation of ELPs, and thus that ELP fusions may prove to be useful in the purification of detergent-solubilized recombinant hydrophobic proteins, including membrane proteins, which are otherwise notoriously difficult to extract and purify by conventional separation methods (e.g., chromatography).
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Affiliation(s)
- Arjun Thapa
- Department of Chemical and Nuclear Engineering, Center for Biomedical Engineering, University of New Mexico, Albuquerque, NM
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25
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Ramos J, Arufe S, O'Flaherty R, Rooney D, Moreira R, Velasco-Torrijos T. Selective aliphatic/aromatic organogelation controlled by the side chain of serine amphiphiles. RSC Adv 2016. [DOI: 10.1039/c6ra21391j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structural modifications in the side chain of N-Fmoc-l-serine amphiphiles induce the selective gelation of either aliphatic or aromatic hydrocarbon solvents.
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Affiliation(s)
- Jessica Ramos
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - Santiago Arufe
- Department of Chemical Engineering
- Universidade de Santiago de Compostela
- Santiago de Compostela
- Spain
| | | | - Denise Rooney
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - Ramon Moreira
- Department of Chemical Engineering
- Universidade de Santiago de Compostela
- Santiago de Compostela
- Spain
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Yeo GC, Aghaei-Ghareh-Bolagh B, Brackenreg EP, Hiob MA, Lee P, Weiss AS. Fabricated Elastin. Adv Healthc Mater 2015; 4:2530-2556. [PMID: 25771993 PMCID: PMC4568180 DOI: 10.1002/adhm.201400781] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 02/09/2015] [Indexed: 12/18/2022]
Abstract
The mechanical stability, elasticity, inherent bioactivity, and self-assembly properties of elastin make it a highly attractive candidate for the fabrication of versatile biomaterials. The ability to engineer specific peptide sequences derived from elastin allows the precise control of these physicochemical and organizational characteristics, and further broadens the diversity of elastin-based applications. Elastin and elastin-like peptides can also be modified or blended with other natural or synthetic moieties, including peptides, proteins, polysaccharides, and polymers, to augment existing capabilities or confer additional architectural and biofunctional features to compositionally pure materials. Elastin and elastin-based composites have been subjected to diverse fabrication processes, including heating, electrospinning, wet spinning, solvent casting, freeze-drying, and cross-linking, for the manufacture of particles, fibers, gels, tubes, sheets and films. The resulting materials can be tailored to possess specific strength, elasticity, morphology, topography, porosity, wettability, surface charge, and bioactivity. This extraordinary tunability of elastin-based constructs enables their use in a range of biomedical and tissue engineering applications such as targeted drug delivery, cell encapsulation, vascular repair, nerve regeneration, wound healing, and dermal, cartilage, bone, and dental replacement.
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Affiliation(s)
- Giselle C. Yeo
- Charles Perkins Centre, The University of Sydney, NSW 2006, Australia
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia
| | - Behnaz Aghaei-Ghareh-Bolagh
- Charles Perkins Centre, The University of Sydney, NSW 2006, Australia
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia
| | - Edwin P. Brackenreg
- Charles Perkins Centre, The University of Sydney, NSW 2006, Australia
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia
| | - Matti A. Hiob
- Charles Perkins Centre, The University of Sydney, NSW 2006, Australia
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia
| | - Pearl Lee
- Charles Perkins Centre, The University of Sydney, NSW 2006, Australia
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia
| | - Anthony S. Weiss
- Charles Perkins Centre, The University of Sydney, NSW 2006, Australia
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia
- Bosch Institute, The University of Sydney, NSW 2006, Australia
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Walker AA, Weisman S, Trueman HE, Merritt DJ, Sutherland TD. The other prey-capture silk: Fibres made by glow-worms (Diptera: Keroplatidae) comprise cross-β-sheet crystallites in an abundant amorphous fraction. Comp Biochem Physiol B Biochem Mol Biol 2015; 187:78-84. [DOI: 10.1016/j.cbpb.2015.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 05/12/2015] [Accepted: 05/14/2015] [Indexed: 10/23/2022]
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Catherine C, Oh SJ, Lee KH, Min SE, Won JI, Yun H, Kim DM. Engineering thermal properties of elastin-like polypeptides by incorporation of unnatural amino acids in a cell-free protein synthesis system. BIOTECHNOL BIOPROC E 2015. [DOI: 10.1007/s12257-015-0190-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Papaioannou A, Louis M, Dhital B, Ho HP, Chang EJ, Boutis GS. Quantitative comparison of structure and dynamics of elastin following three isolation schemes by 13C solid state NMR and MALDI mass spectrometry. BIOCHIMICA ET BIOPHYSICA ACTA 2015; 1854:391-401. [PMID: 25592991 PMCID: PMC4380551 DOI: 10.1016/j.bbapap.2014.12.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/23/2014] [Accepted: 12/29/2014] [Indexed: 10/24/2022]
Abstract
Methods for isolating elastin from fat, collagen, and muscle, commonly used in the design of artificial elastin based biomaterials, rely on exposing tissue to harsh pH levels and temperatures that usually denature many proteins. At present, a quantitative measurement of the modifications to elastin following isolation from other extracellular matrix constituents has not been reported. Using magic angle spinning (13)C NMR spectroscopy and relaxation methodologies, we have measured the modification in structure and dynamics following three known purification protocols. Our experimental data reveal that the (13)C spectra of the hydrated samples appear remarkably similar across the various purification methods. Subtle differences in the half maximum widths were observed in the backbone carbonyl suggesting possible structural heterogeneity across the different methods of purification. Additionally, small differences in the relative signal intensities were observed between purified samples. Lyophilizing the samples results in a reduction of backbone motion and reveals additional differences across the purification methods studied. These differences were most notable in the alanine motifs indicating possible changes in cross-linking or structural rigidity. The measured correlation times of glycine and proline moieties are observed to also vary considerably across the different purification methods, which may be related to peptide bond cleavage. Lastly, the relative concentration of desmosine cross-links in the samples quantified by MALDI mass spectrometry is reported.
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Affiliation(s)
- A Papaioannou
- The Graduate Center of the City University of New York, Department of Physics, New York, NY, USA
| | - M Louis
- York College of The City University of New York, Department of Chemistry, Jamaica, New York, USA
| | - B Dhital
- The Graduate Center of the City University of New York, Department of Physics, New York, NY, USA
| | - H P Ho
- York College of The City University of New York, Department of Chemistry, Jamaica, New York, USA; The Graduate Center of the City University of New York, Department of Chemistry, New York, NY, USA
| | - E J Chang
- York College of The City University of New York, Department of Chemistry, Jamaica, New York, USA; The Graduate Center of the City University of New York, Department of Chemistry, New York, NY, USA
| | - G S Boutis
- The Graduate Center of the City University of New York, Department of Physics, New York, NY, USA; The Graduate Center of the City University of New York, Department of Chemistry, New York, NY, USA; Brooklyn College, Physics Department, Brooklyn, New York, USA.
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30
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Desai MS, Lee SW. Protein-based functional nanomaterial design for bioengineering applications. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:69-97. [DOI: 10.1002/wnan.1303] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/12/2014] [Accepted: 09/02/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Malav S. Desai
- Department of Bioengineering; University of California, Berkeley; Berkeley CA USA
- Physical Biosciences Division; Lawrence Berkeley National Laboratory; Berkeley CA USA
| | - Seung-Wuk Lee
- Department of Bioengineering; University of California, Berkeley; Berkeley CA USA
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31
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Kowalczyk T, Hnatuszko-Konka K, Gerszberg A, Kononowicz AK. Elastin-like polypeptides as a promising family of genetically-engineered protein based polymers. World J Microbiol Biotechnol 2014; 30:2141-52. [PMID: 24699809 PMCID: PMC4072924 DOI: 10.1007/s11274-014-1649-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/27/2014] [Indexed: 01/01/2023]
Abstract
Elastin-like polypeptides (ELP) are artificial, genetically encodable biopolymers, belonging to elastomeric proteins, which are widespread in a wide range of living organisms. They are composed of a repeating pentapeptide sequence Val-Pro-Gly-Xaa-Gly, where the guest residue (Xaa) can be any naturally occurring amino acid except proline. These polymers undergo reversible phase transition that can be triggered by various environmental stimuli, such as temperature, pH or ionic strength. This behavior depends greatly on the molecular weight, concentration of ELP in the solution and composition of the amino acids constituting ELPs. At a temperature below the inverse transition temperature (Tt), ELPs are soluble, but insoluble when the temperature exceeds Tt. Furthermore, this feature is retained even when ELP is fused to the protein of interest. These unique properties make ELP very useful for a wide variety of biomedical applications (e.g. protein purification, drug delivery etc.) and it can be expected that smart biopolymers will play a significant role in the development of most new materials and technologies. Here we present the structure and properties of thermally responsive elastin-like polypeptides with a particular emphasis on biomedical and biotechnological application.
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Affiliation(s)
- Tomasz Kowalczyk
- Department of Genetics and Plant Molecular Biology and Biotechnology, The University of Lodz, Banacha Street 12/16, 90-237, Lodz, Poland,
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Shang Y, Yan Y, Hou X. Stimuli responsive elastin-like polypeptides and applications in medicine and biotechnology. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 25:101-20. [DOI: 10.1080/09205063.2013.841073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Panagopoulou A, Kyritsis A, Vodina M, Pissis P. Dynamics of uncrystallized water and protein in hydrated elastin studied by thermal and dielectric techniques. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:977-88. [DOI: 10.1016/j.bbapap.2013.03.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/15/2013] [Accepted: 03/16/2013] [Indexed: 11/24/2022]
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35
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Jeon WB. Application of elastin-mimetic recombinant proteins in chemotherapeutics delivery, cellular engineering, and regenerative medicine. Bioengineered 2013; 4:368-73. [PMID: 23475122 PMCID: PMC3937197 DOI: 10.4161/bioe.24158] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
With the remarkable increase in the fields of biomedical engineering and regenerative medicine, biomaterial design has become an indispensable approach for developing the biocompatible carriers for drug or gene cargo and extracellular matrix (ECM) for cell survival, proliferation and differentiation. Native ECM materials derived from animal tissues were believed to be the best choices for tissue engineering. However, possible pathogen contamination by cellular remnants from foreign animal tissues is an unavoidable issue that has limited the use of native ECM for human benefit. Some synthetic polymers have been used as alternative materials for manufacturing native ECM because of the biodegradability and ease of large-scale production of the polymers. However, the inherent polydispersity of the polymers causes batch-to-batch variation in polymer composition and possible cytotoxic interactions between chemical matrices and neighboring cells or tissues have not yet been fully resolved. Elastin-like proteins (ELPs) are genetically engineered biopolymers modeled after the naturally occurring tropoelastin and have emerged as promising materials for biomedical applications because they are biocompatible, non-immunogenic and biodegradable, and their composition, mechanical stiffness and even fate within the cell can be controlled at the gene level. This commentary highlights the recent progresses in the development of the ELP-based recombinant proteins that are being increasingly used for the delivery of chemotherapeutics and to provide a cell-friendly ECM environment.
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Affiliation(s)
- Won Bae Jeon
- Laboratory of Biochemistry and Cellular Engineering; Division of NanoBio Technology; Daegu Gyeongbuk Institute of Science and Technology; Daegu, South Korea
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36
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Abstract
Resilin is critical in the flight and jumping systems of insects as a polymeric rubber-like protein with outstanding elasticity. However, insight into the underlying molecular mechanisms responsible for resilin elasticity remains undefined. Here we report the structure and function of resilin from Drosophila CG15920. A reversible beta-turn transition was identified in the peptide encoded by exon III and for full length resilin during energy input and release, features that correlate to the rapid deformation of resilin during functions in vivo. Micellar structures and nano-porous patterns formed after beta-turn structures were present via changes in either the thermal or mechanical inputs. A model is proposed to explain the super elasticity and energy conversion mechanisms of resilin, providing important insight into structure-function relationships for this protein. Further, this model offers a view of elastomeric proteins in general where beta-turn related structures serve as fundamental units of the structure and elasticity.
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37
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Wei W, Yu J, Broomell C, Israelachvili JN, Waite JH. Hydrophobic enhancement of Dopa-mediated adhesion in a mussel foot protein. J Am Chem Soc 2012; 135:377-83. [PMID: 23214725 DOI: 10.1021/ja309590f] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dopa (3,4-dihydroxyphenylalanine) is recognized as a key chemical signature of mussel adhesion and has been adopted into diverse synthetic polymer systems. Dopa's notorious susceptibility to oxidation, however, poses significant challenges to the practical translation of mussel adhesion. Using a surface forces apparatus to investigate the adhesion of mussel foot protein 3 (Mfp3) "slow", a hydrophobic protein variant of the Mfp3 family in the plaque, we have discovered a subtle molecular strategy correlated with hydrophobicity that appears to compensate for Dopa instability. At pH 3, where Dopa is stable, Mfp3 slow, like Mfp3 "fast" adhesion to mica, is directly proportional to the mol % of Dopa present in the protein. At pH of 5.5 and 7.5, however, loss of adhesion in Mfp3 slow was less than half that occurring in Mfp3 fast, purportedly because Dopa in Mfp3 slow is less prone to oxidation. Indeed, cyclic voltammetry showed that the oxidation potential of Dopa in Mfp3 slow is significantly higher than in Mfp3 fast at pH of 7.5. A much greater difference between the two variants was revealed in the interaction energy of two symmetric Mfp3 slow films (E(ad) = -3 mJ/m(2)). This energy corresponds to the energy of protein cohesion which is notable for its reversibility and pH independence. Exploitation of aromatic hydrophobic sequences to protect Dopa against oxidation as well as to mediate hydrophobic and H-bonding interactions between proteins provides new insights for developing effective artificial underwater adhesives.
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Affiliation(s)
- Wei Wei
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
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38
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Saumonneau A, Rottier K, Conrad U, Popineau Y, Guéguen J, Francin-Allami M. Expression of a new chimeric protein with a highly repeated sequence in tobacco cells. PLANT CELL REPORTS 2011; 30:1289-302. [PMID: 21373795 DOI: 10.1007/s00299-011-1040-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 02/04/2011] [Accepted: 02/09/2011] [Indexed: 05/30/2023]
Abstract
In wheat, the high-molecular weight (HMW) glutenin subunits are known to contribute to gluten viscoelasticity, and show some similarities to elastomeric animal proteins as elastin. When combining the sequence of a glutenin with that of elastin is a way to create new chimeric functional proteins, which could be expressed in plants. The sequence of a glutenin subunit was modified by the insertion of several hydrophobic and elastic motifs derived from elastin (elastin-like peptide, ELP) into the hydrophilic repetitive domain of the glutenin subunit to create a triblock protein, the objective being to improve the mechanical (elastomeric) properties of this wheat storage protein. In this study, we investigated an expression model system to analyze the expression and trafficking of the wild-type HMW glutenin subunit (GS(W)) and an HMW glutenin subunit mutated by the insertion of elastin motifs (GS(M)-ELP). For this purpose, a series of constructs was made to express wild-type subunits and subunits mutated by insertion of elastin motifs in fusion with green fluorescent protein (GFP) in tobacco BY-2 cells. Our results showed for the first time the expression of HMW glutenin fused with GFP in tobacco protoplasts. We also expressed and localized the chimeric protein composed of plant glutenin and animal elastin-like peptides (ELP) in BY-2 protoplasts, and demonstrated its presence in protein body-like structures in the endoplasmic reticulum. This work, therefore, provides a basis for heterologous production of the glutenin-ELP triblock protein to characterize its mechanical properties.
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Affiliation(s)
- Amélie Saumonneau
- Institut National de la Recherche Agronomique, UR1268, Biopolymères Interactions Assemblages, Nantes, France
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Lambourne J, Tosi P, Marsh J, Bhandari D, Green R, Frazier R, Shewry PR. Characterisation of an s-type low molecular weight glutenin subunit of wheat and its proline and glutamine-rich repetitive domain. J Cereal Sci 2010. [DOI: 10.1016/j.jcs.2009.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Elastin-like polypeptides revolutionize recombinant protein expression and their biomedical application. Trends Biotechnol 2009; 28:37-45. [PMID: 19897265 DOI: 10.1016/j.tibtech.2009.10.004] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 10/07/2009] [Accepted: 10/08/2009] [Indexed: 11/21/2022]
Abstract
Elastin-like polypeptides (ELPs) are highly biocompatible and exhibit a potentially highly useful property: that of a thermally responsive reversible phase transition. These characteristics make ELPs attractive for drug delivery, appealing as materials for tissue repair or engineering, and improve the efficiency with which recombinant proteins can be purified. ELP fusion proteins (referred to as ELPylation) inherit the reversible phase transition property. ELPylation technology recently has been extended to plant cells, and a number of plant-based expression systems have been evaluated for the production of ELPylated proteins. Here, we discuss recent developments in ELP technology and the substantial potential of ELPs for the deployment of transgenic plants as bioreactors to synthesize both biopharmaceuticals and industrial proteins.
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41
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Cho Y, Sagle LB, Iimura S, Zhang Y, Kherb J, Chilkoti A, Scholtz JM, Cremer PS. Hydrogen Bonding of β-Turn Structure Is Stabilized in D2O. J Am Chem Soc 2009; 131:15188-93. [DOI: 10.1021/ja9040785] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Younhee Cho
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Laura B. Sagle
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Satoshi Iimura
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Yanjie Zhang
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Jaibir Kherb
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Ashutosh Chilkoti
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - J. Martin Scholtz
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Paul S. Cremer
- Department of Chemistry, Texas A&M University, 3255 TAMU, and Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas 77843, and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
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Teeuwen RLM, van Berkel SS, van Dulmen THH, Schoffelen S, Meeuwissen SA, Zuilhof H, de Wolf FA, van Hest JCM. “Clickable” elastins: elastin-like polypeptides functionalized with azide or alkyne groups. Chem Commun (Camb) 2009:4022-4. [DOI: 10.1039/b903903a] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Broomell CC, Chase SF, Laue T, Waite JH. Cutting Edge Structural Protein from the Jaws of Nereis virens. Biomacromolecules 2008; 9:1669-77. [DOI: 10.1021/bm800200a] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chris C. Broomell
- University of California at Santa Barbara, Santa Barbara, California 93106, and Center to Advance Molecular Interaction Science, University of New Hampshire, Durham, New Hampshire 03824
| | - Sue F. Chase
- University of California at Santa Barbara, Santa Barbara, California 93106, and Center to Advance Molecular Interaction Science, University of New Hampshire, Durham, New Hampshire 03824
| | - Tom Laue
- University of California at Santa Barbara, Santa Barbara, California 93106, and Center to Advance Molecular Interaction Science, University of New Hampshire, Durham, New Hampshire 03824
| | - J. Herbert Waite
- University of California at Santa Barbara, Santa Barbara, California 93106, and Center to Advance Molecular Interaction Science, University of New Hampshire, Durham, New Hampshire 03824
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