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Depenveiller C, Baud S, Belloy N, Bochicchio B, Dandurand J, Dauchez M, Pepe A, Pomès R, Samouillan V, Debelle L. Structural and physical basis for the elasticity of elastin. Q Rev Biophys 2024; 57:e3. [PMID: 38501287 DOI: 10.1017/s0033583524000040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Elastin function is to endow vertebrate tissues with elasticity so that they can adapt to local mechanical constraints. The hydrophobicity and insolubility of the mature elastin polymer have hampered studies of its molecular organisation and structure-elasticity relationships. Nevertheless, a growing number of studies from a broad range of disciplines have provided invaluable insights, and several structural models of elastin have been proposed. However, many questions remain regarding how the primary sequence of elastin (and the soluble precursor tropoelastin) governs the molecular structure, its organisation into a polymeric network, and the mechanical properties of the resulting material. The elasticity of elastin is known to be largely entropic in origin, a property that is understood to arise from both its disordered molecular structure and its hydrophobic character. Despite a high degree of hydrophobicity, elastin does not form compact, water-excluding domains and remains highly disordered. However, elastin contains both stable and labile secondary structure elements. Current models of elastin structure and function are drawn from data collected on tropoelastin and on elastin-like peptides (ELPs) but at the tissue level, elasticity is only achieved after polymerisation of the mature elastin. In tissues, the reticulation of tropoelastin chains in water defines the polymer elastin that bears elasticity. Similarly, ELPs require polymerisation to become elastic. There is considerable interest in elastin especially in the biomaterials and cosmetic fields where ELPs are widely used. This review aims to provide an up-to-date survey of/perspective on current knowledge about the interplay between elastin structure, solvation, and entropic elasticity.
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Affiliation(s)
- Camille Depenveiller
- UMR URCA/CNRS 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, SFR CAP Santé, Université de Reims Champagne-Ardenne, Reims, France
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| | - Stéphanie Baud
- UMR URCA/CNRS 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, SFR CAP Santé, Université de Reims Champagne-Ardenne, Reims, France
| | - Nicolas Belloy
- UMR URCA/CNRS 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, SFR CAP Santé, Université de Reims Champagne-Ardenne, Reims, France
| | - Brigida Bochicchio
- Laboratory of Bioinspired Materials, Department of Science, University of Basilicata, Potenza, Italy
| | - Jany Dandurand
- CIRIMAT UMR 5085, Université Paul Sabatier, Université de Toulouse, Toulouse, France
| | - Manuel Dauchez
- UMR URCA/CNRS 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, SFR CAP Santé, Université de Reims Champagne-Ardenne, Reims, France
| | - Antonietta Pepe
- Laboratory of Bioinspired Materials, Department of Science, University of Basilicata, Potenza, Italy
| | - Régis Pomès
- Molecular Medicine, Hospital for Sick Children, Toronto, ON, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Valérie Samouillan
- CIRIMAT UMR 5085, Université Paul Sabatier, Université de Toulouse, Toulouse, France
| | - Laurent Debelle
- UMR URCA/CNRS 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR Sciences Exactes et Naturelles, SFR CAP Santé, Université de Reims Champagne-Ardenne, Reims, France
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Suyama K, Murashima M, Maeda I, Nose T. Enhancement of Aggregate Formation Through Aromatic Compound Adsorption in Elastin-like Peptide (FPGVG) 5 Analogs. Biomacromolecules 2023; 24:5265-5276. [PMID: 37865930 DOI: 10.1021/acs.biomac.3c00779] [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: 10/24/2023]
Abstract
Elastin-like peptides (ELPs) exhibit temperature-dependent reversible self-assembly. Repetitive sequences derived from elastin, such as Val-Pro-Gly-Val-Gly (VPGVG), are essential for the self-assembly of ELPs. Previously, we developed (FPGVG)5 (F5), in which the first valine residue in the VPGVG sequence was replaced with phenylalanine, which showed strong self-aggregation ability. This suggests that interactions through the aromatic amino acid residues of ELPs could play an important role in self-assembly. In this study, we investigated the thermoresponsive behavior of F5 analogs in the presence of aromatic compounds. Turbidimetry, spectroscopy, and fluorescence measurements demonstrated that aromatic compounds interacted with F5 analogs below the transition temperature and enhanced the self-assembly ability of ELPs by stabilizing amyloid-like structures. Furthermore, quantitative high-performance liquid chromatography analyses showed that the F5 analogs could adsorb and remove hydrophobic aromatic compounds from aqueous solutions during aggregate formation. These results suggested that the F5 analogs can be applicable as scavengers of aromatic compounds.
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Affiliation(s)
- Keitaro Suyama
- Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Masayuki Murashima
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Iori Maeda
- Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka 820-8502, Fukuoka, Japan
| | - Takeru Nose
- Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka 819-0395, Japan
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Noh Y, Son E, Cha C. Exploring stimuli-responsive elastin-like polypeptide for biomedicine and beyond: potential application as programmable soft actuators. Front Bioeng Biotechnol 2023; 11:1284226. [PMID: 37965051 PMCID: PMC10642932 DOI: 10.3389/fbioe.2023.1284226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/17/2023] [Indexed: 11/16/2023] Open
Abstract
With the emergence of soft robotics, there is a growing need to develop actuator systems that are lightweight, mechanically compliant, stimuli-responsive, and readily programmable for precise and intelligent operation. Therefore, "smart" polymeric materials that can precisely change their physicomechanical properties in response to various external stimuli (e.g., pH, temperature, electromagnetic force) are increasingly investigated. Many different types of polymers demonstrating stimuli-responsiveness and shape memory effect have been developed over the years, but their focus has been mostly placed on controlling their mechanical properties. In order to impart complexity in actuation systems, there is a concerted effort to implement additional desired functionalities. For this purpose, elastin-like polypeptide (ELP), a class of genetically-engineered thermoresponsive polypeptides that have been mostly utilized for biomedical applications, is being increasingly investigated for stimuli-responsive actuation. Herein, unique characteristics and biomedical applications of ELP, and recent progress on utilizing ELP for programmable actuation are introduced.
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Affiliation(s)
| | | | - Chaenyung Cha
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
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Zhou M, Yao Y, Ma S, Zou M, Chen Y, Cai S, Zhao F, Wu H, Xiao F, Abudushalamu G, Fan X, Wu G. Dual-targeted and dual-sensitive self-assembled protein nanocarrier delivering hVEGI-192 for triple-negative breast cancer. Int J Biol Macromol 2023:125475. [PMID: 37353129 DOI: 10.1016/j.ijbiomac.2023.125475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/11/2023] [Accepted: 06/16/2023] [Indexed: 06/25/2023]
Abstract
Breast cancer is a highly prevalent malignancy worldwide among women with an increasing incidence in recent years. Triple-negative breast cancer (TNBC), a specific type of breast cancer, occurs primarily in young women and exhibits large tumor size, high clinical stage, and extremely poor prognosis with a high rate of lymph node, liver, and lung metastases. TNBC is insensitive to endocrine therapy and trastuzumab treatment, and there is an urgent need for effective therapeutics and treatment guidelines. However, investigations into antiangiogenic agents for the treatment of TNBC are ongoing. In this study, we successfully engineered a self-assembled protein nanocarrier TfRBP9-hVEGI-192-ELP fusion protein (TVEFP) to deliver the therapeutic protein, human vascular endothelial growth inhibitor (hVEGI-192). This was found to be effective in inhibiting tumor angiogenesis in vivo. The protein nanocarrier effectively inhibited the progression of TNBC in vivo and showed the behavior of self-assembly, thermoresponsiveness, enzyme stimulation-responsiveness, tumor-targeting, biocompatibility, and biodegradability. Near-infrared imaging studies showed that fluorescent dye-stained TVEFP effectively aggregated at the tumor site. The TVEFP nanocarrier significantly expands the application of the therapeutic protein hVEGI-192 and improves the imaging and biotherapeutic effects in TNBC, chiefly based on anti-angiogenesis effects.
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Affiliation(s)
- Meiling Zhou
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Yuming Yao
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Shuo Ma
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Mingyuan Zou
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Yaya Chen
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Shijie Cai
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Fengfeng Zhao
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Huina Wu
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Feng Xiao
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - GuliNazhaer Abudushalamu
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China
| | - Xiaobo Fan
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China.
| | - Guoqiu Wu
- Center of Clinical Laboratory Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China; Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Laboratory Medcine, School of Medicine, Southeast University, Nanjing 210009, Jiangsu, China.
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5
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Goldman J, Liu SQ, Tefft BJ. Anti-Inflammatory and Anti-Thrombogenic Properties of Arterial Elastic Laminae. Bioengineering (Basel) 2023; 10:bioengineering10040424. [PMID: 37106611 PMCID: PMC10135563 DOI: 10.3390/bioengineering10040424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 03/07/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Elastic laminae, an elastin-based, layered extracellular matrix structure in the media of arteries, can inhibit leukocyte adhesion and vascular smooth muscle cell proliferation and migration, exhibiting anti-inflammatory and anti-thrombogenic properties. These properties prevent inflammatory and thrombogenic activities in the arterial media, constituting a mechanism for the maintenance of the structural integrity of the arterial wall in vascular disorders. The biological basis for these properties is the elastin-induced activation of inhibitory signaling pathways, involving the inhibitory cell receptor signal regulatory protein α (SIRPα) and Src homology 2 domain-containing protein tyrosine phosphatase 1 (SHP1). The activation of these molecules causes deactivation of cell adhesion- and proliferation-regulatory signaling mechanisms. Given such anti-inflammatory and anti-thrombogenic properties, elastic laminae and elastin-based materials have potential for use in vascular reconstruction.
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Miserez A, Yu J, Mohammadi P. Protein-Based Biological Materials: Molecular Design and Artificial Production. Chem Rev 2023; 123:2049-2111. [PMID: 36692900 PMCID: PMC9999432 DOI: 10.1021/acs.chemrev.2c00621] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Polymeric materials produced from fossil fuels have been intimately linked to the development of industrial activities in the 20th century and, consequently, to the transformation of our way of living. While this has brought many benefits, the fabrication and disposal of these materials is bringing enormous sustainable challenges. Thus, materials that are produced in a more sustainable fashion and whose degradation products are harmless to the environment are urgently needed. Natural biopolymers─which can compete with and sometimes surpass the performance of synthetic polymers─provide a great source of inspiration. They are made of natural chemicals, under benign environmental conditions, and their degradation products are harmless. Before these materials can be synthetically replicated, it is essential to elucidate their chemical design and biofabrication. For protein-based materials, this means obtaining the complete sequences of the proteinaceous building blocks, a task that historically took decades of research. Thus, we start this review with a historical perspective on early efforts to obtain the primary sequences of load-bearing proteins, followed by the latest developments in sequencing and proteomic technologies that have greatly accelerated sequencing of extracellular proteins. Next, four main classes of protein materials are presented, namely fibrous materials, bioelastomers exhibiting high reversible deformability, hard bulk materials, and biological adhesives. In each class, we focus on the design at the primary and secondary structure levels and discuss their interplays with the mechanical response. We finally discuss earlier and the latest research to artificially produce protein-based materials using biotechnology and synthetic biology, including current developments by start-up companies to scale-up the production of proteinaceous materials in an economically viable manner.
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Affiliation(s)
- Ali Miserez
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), Singapore637553.,School of Biological Sciences, NTU, Singapore637551
| | - Jing Yu
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), Singapore637553.,Institute for Digital Molecular Analytics and Science (IDMxS), NTU, 50 Nanyang Avenue, Singapore637553
| | - Pezhman Mohammadi
- VTT Technical Research Centre of Finland Ltd., Espoo, UusimaaFI-02044, Finland
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7
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Tanaka N, Suyama K, Tomohara K, Maeda I, Nose T. Branched short elastin-like peptides with temperature responsiveness obtained by EDTA-mediated multimerization. J Pept Sci 2023; 29:e3449. [PMID: 36038531 DOI: 10.1002/psc.3449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 01/12/2023]
Abstract
Elastin-like peptides (ELPs) exhibit a reversible phase transition, known as coacervation, triggered by temperature changes. This property makes them useful as stimuli-responsive molecular materials for various applications. Among ELPs, short peptide chain lengths have some advantages over long peptide chain lengths because short ELPs can be easily obtained by chemical synthesis, allowing the use of various amino acids, including D-type and unnatural amino acids, at any position in the sequence. Moreover, the incorporated amino acids readily affect the temperature-responsive behavior of ELPs. However, to be utilized in various applications, it is necessary to develop short ELPs and to investigate their temperature-responsive properties. To obtain further insights into the temperature-responsive behavior of the short ELPs, we investigated branched short ELP analogs composed of (FPGVG)n chains (n = 1 or 2, abbreviated as F1 and F2, respectively). We synthesized multimers composed of four F1 chains or two to four F2 chains using ethylenediaminetetraacetic acid (EDTA) as a central component of multimerization. Our results show that the multimers obtained exhibited coacervation in aqueous solutions whereas linear F1 or F2 did not. Furthermore, the structural features of the obtained multimers were the same as those of linear (FPGVG)4 . In this study, we demonstrated that molecules capable of coacervation can be obtained by multimerization of F1 or F2. The temperature-responsive molecules obtained using short ELPs make it possible to use them as easy-to-synthesize peptide tags to confer temperature responsiveness to various molecules, which will aid the development of temperature-responsive biomaterials with a wide variety of functions.
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Affiliation(s)
- Naoki Tanaka
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan
| | - Keitaro Suyama
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | | | - Iori Maeda
- Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka, Japan
| | - Takeru Nose
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
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8
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Synthesis and structural characterization of elastin-based polypentapeptide/hydroxypropylmethylcellulose blend films: Assessment of miscibility, thermal stability and surface characteristics. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Procknow SS, Kozel BA. Emerging mechanisms of elastin transcriptional regulation. Am J Physiol Cell Physiol 2022; 323:C666-C677. [PMID: 35816641 PMCID: PMC9448287 DOI: 10.1152/ajpcell.00228.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 11/22/2022]
Abstract
Elastin provides recoil to tissues that stretch such as the lung, blood vessels, and skin. It is deposited in a brief window starting in the prenatal period and extending to adolescence in vertebrates, and then slowly turns over. Elastin insufficiency is seen in conditions such as Williams-Beuren syndrome and elastin-related supravalvar aortic stenosis, which are associated with a range of vascular and connective tissue manifestations. Regulation of the elastin (ELN) gene occurs at multiple levels including promoter activation/inhibition, mRNA stability, interaction with microRNAs, and alternative splicing. However, these mechanisms are incompletely understood. Better understanding of the processes controlling ELN gene expression may improve medicine's ability to intervene in these rare conditions, as well as to replace age-associated losses by re-initiating elastin production. This review describes what is known about the ELN gene promoter structure, transcriptional regulation by cytokines and transcription factors, and posttranscriptional regulation via mRNA stability and micro-RNA and highlights new approaches that may influence regenerative medicine.
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Affiliation(s)
- Sara S Procknow
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Beth A Kozel
- Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
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Suyama K, Shimizu M, Maeda I, Nose T. Flexible customization of the self-assembling abilities of short elastin-like peptide Fn analogs by substituting N-terminal amino acids. Biopolymers 2022; 113:e23521. [PMID: 35830538 DOI: 10.1002/bip.23521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/20/2022] [Accepted: 07/01/2022] [Indexed: 11/06/2022]
Abstract
Elastin-like peptides (ELPs) are thermoresponsive biopolymers inspired by the characteristic repetitive sequences of natural elastin. As ELPs exhibit temperature-dependent reversible self-assembly, they are expected to be biocompatible thermoresponsive materials for drug delivery carriers. One of the most widely studied ELPs in this field is the repetitive pentapeptide, (VPGXG)n . We previously reported that phenylalanine-containing ELP (Fn) analogs, in which the former Val residue of the repetitive sequence (VPGVG)n is replaced by Phe, show coacervation with a short chain length (n = 5). Owing to their short sequences, Fn analogs are easily modified in amino acid sequences via simple chemical synthesis, and are useful for investigating the relationship between peptide sequences and temperature responsiveness. In this study, we developed Fn analogs by replacing Phe residue(s) with other amino acids or introducing another amino acid at the N-terminus. The temperature responsiveness of the Fn analogs changed drastically with the substitution of a single Phe residue, suggesting that aromatic amino acids play an important role in their self-assembly. In addition, the self-assembling ability of Fn was enhanced by increasing the bulkiness of the N-terminal amino acids. Therefore, the N-terminal residue was considered to be important for hydrophobicity-induced intermolecular interactions between the peptides during coacervation.
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Affiliation(s)
- Keitaro Suyama
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Marin Shimizu
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan
| | - Iori Maeda
- Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
| | - Takeru Nose
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan.,Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan
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Abstract
This biography of Dr. Joel Rosenbloom is published on the occasion of the 50th anniversary of the journal. Dr. Rosenbloom presents the scientific milestones and achievements throughout his career emphasizing events that have spurred him to launch into a career in biomedical research and education. The biography spans several decades of the life and achievements of a distinguished physician scientist whose dedication to science demonstrates the development of new insights into a variety of connective tissues through technological advances and insightful approaches.
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Affiliation(s)
- Joel Rosenbloom
- Joan and Joel Research Center for Fibrotic Diseases, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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12
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Sumiyoshi S, Suyama K, Tatsubo D, Tanaka N, Tomohara K, Taniguchi S, Maeda I, Nose T. Metal ion scavenging activity of elastin-like peptide analogues containing a cadmium ion binding sequence. Sci Rep 2022; 12:1861. [PMID: 35115613 PMCID: PMC8814041 DOI: 10.1038/s41598-022-05695-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 01/17/2022] [Indexed: 12/13/2022] Open
Abstract
The development of simple and safe methods for recovering environmental pollutants, such as heavy metals, is needed for sustainable environmental management. Short elastin-like peptide (ELP) analogues conjugated with metal chelating agents are considered to be useful as metal sequestering agents as they are readily produced, environment friendly, and the metal binding domain can be selected based on any target metal of interest. Due to the temperature dependent self-assembly of ELP, the peptide-based sequestering agents can be transformed from the solution state into the particles that chelate metal ions, which can then be collected as precipitates. In this study, we developed a peptide-based sequestering agent, AADAAC-(FPGVG)4, by introducing the metal-binding sequence AADAAC on the N-terminus of a short ELP, (FPGVG)4. In turbidity measurements, AADAAC-(FPGVG)4 revealed strong self-assembling ability in the presence of metal ions such as Cd2+ and Zn2+. The results from colorimetric analysis indicated that AADAAC-(FPGVG)4 could capture Cd2+ and Zn2+. Furthermore, AADAAC-(FPGVG)4 that bound to metal ions could be readily recycled by treatment with acidic solution without compromising its metal binding affinity. The present study indicates that the fusion of the metal-binding sequence and ELP is a useful and powerful strategy to develop cost-effective heavy metal scavenging agents with low environmental impacts.
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Affiliation(s)
- Shogo Sumiyoshi
- Laboratory of Biomolecular Chemistry, Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Keitaro Suyama
- Laboratory of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Daiki Tatsubo
- Laboratory of Biomolecular Chemistry, Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Naoki Tanaka
- Laboratory of Biomolecular Chemistry, Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Keisuke Tomohara
- Laboratory of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Suguru Taniguchi
- Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Iori Maeda
- Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Takeru Nose
- Laboratory of Biomolecular Chemistry, Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan.
- Laboratory of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan.
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13
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Honjo RS, Monteleone VF, Aiello VD, Wagenfuhr J, Issa VS, Pomerantzeff PMA, Furusawa EA, Zanardo EA, Kulikowski LD, Bertola DR, Kim CA. Cardiovascular findings in Williams-Beuren Syndrome: Experience of a single center with 127 cases. Am J Med Genet A 2021; 188:676-682. [PMID: 34713566 DOI: 10.1002/ajmg.a.62542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 11/12/2022]
Abstract
Williams-Beuren syndrome (WBS) is a rare, microdeletion syndrome characterized by facial dysmorphisms, intellectual disability, a friendly personality, cardiovascular and other abnormalities. Cardiovascular defects (CVD) are among the most prevalent characteristics in WBS, being supravalvular aortic stenosis (SVAS) the most frequent, followed by peripheral pulmonary stenosis (PPS). A comprehensive retrospective review of medical records of 127 patients with molecular diagnosis of WBS, in a period of 20 years, was done to evaluate the incidence, the natural history of cardiovascular disease, and the need for surgical intervention, including heart transplantation (HT). A total of 94/127 patients presented with CVD. Of these 94 patients, 50% presented with SVAS and 22.3% needed heart surgery and/or cardiac catheterization including one that required HT due to severe SVAS-related heart failure at 19 years of age. The patient died in the postoperative period due to infectious complications. Cardiovascular problems are the major cause of sudden death in patients with WBS, who have a significantly higher mortality risk associated with surgical interventions. There is a higher risk for anesthesia-related adverse events and for major adverse cardiac events following surgery. End-stage heart failure due to myocardial ischemia has been described in WBS patients and it is important to consider that HT can become their only viable option. To our knowledge, the case mentioned here is the first HT reported in an adolescent with WBS. HT can be a viable therapeutic option in WBS patients with adequate evaluation, planning, and a multidisciplinary team to provide the required perioperative care and follow-up.
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Affiliation(s)
- Rachel Sayuri Honjo
- Genetics Unit, Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Vanessa Figueiredo Monteleone
- Genetics Unit, Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Vera Demarchi Aiello
- Pathology Laboratory, Instituto do Coração do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Jaqueline Wagenfuhr
- Pediatric Cardiology Unit, Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | | | - Pablo Maria Alberto Pomerantzeff
- Heart Transplantation Unit, Instituto do Coraçao do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Erika Arai Furusawa
- Pediatric Nephrology Unit, Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Evelin Aline Zanardo
- Cytogenomic Laboratory, LIM 03, Pathology Department, Faculdade de Medicina HC-FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Leslie Domenici Kulikowski
- Cytogenomic Laboratory, LIM 03, Pathology Department, Faculdade de Medicina HC-FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Debora Romeo Bertola
- Genetics Unit, Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Chong Ae Kim
- Genetics Unit, Instituto da Criança do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
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14
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Capuana F, Phinikaridou A, Stefania R, Padovan S, Lavin B, Lacerda S, Almouazen E, Chevalier Y, Heinrich-Balard L, Botnar RM, Aime S, Digilio G. Imaging of Dysfunctional Elastogenesis in Atherosclerosis Using an Improved Gadolinium-Based Tetrameric MRI Probe Targeted to Tropoelastin. J Med Chem 2021; 64:15250-15261. [PMID: 34661390 PMCID: PMC8558862 DOI: 10.1021/acs.jmedchem.1c01286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Dysfunctional elastin turnover plays a major role in the progression of atherosclerotic plaques. Failure of tropoelastin cross-linking into mature elastin leads to the accumulation of tropoelastin within the growing plaque, increasing its instability. Here we present Gd4-TESMA, an MRI contrast agent specifically designed for molecular imaging of tropoelastin within plaques. Gd4-TESMA is a tetrameric probe composed of a tropoelastin-binding peptide (the VVGS-peptide) conjugated with four Gd(III)-DOTA-monoamide chelates. It shows a relaxivity per molecule of 34.0 ± 0.8 mM-1 s-1 (20 MHz, 298 K, pH 7.2), a good binding affinity to tropoelastin (KD = 41 ± 12 μM), and a serum half-life longer than 2 h. Gd4-TESMA accumulates specifically in atherosclerotic plaques in the ApoE-/- murine model of plaque progression, with 2 h persistence of contrast enhancement. As compared to the monomeric counterpart (Gd-TESMA), the tetrameric Gd4-TESMA probe shows a clear advantage regarding both sensitivity and imaging time window, allowing for a better characterization of atherosclerotic plaques.
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Affiliation(s)
- Federico Capuana
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Via Nizza 52, Turin 10126, Italy
| | - Alkystis Phinikaridou
- School of Biomedical Engineering and Imaging Sciences, King's College London, Westminster Bridge Road, London SE1 7EH, United Kingdom
| | - Rachele Stefania
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Via Nizza 52, Turin 10126, Italy
| | - Sergio Padovan
- Institute for Biostructures and Bioimages (CNR) c/o Molecular Biotechnology Center, Via Nizza 52, Torino 10126, Italy
| | - Begoña Lavin
- School of Biomedical Engineering and Imaging Sciences, King's College London, Westminster Bridge Road, London SE1 7EH, United Kingdom.,Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Ciudad Universitaria s/n, Madrid 28040, Spain
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d'Orléans, Rue Charles Sadron, Orléans Cedex 2 45071, France
| | - Eyad Almouazen
- CNRS, LAGEPP UMR 5007, Univ Lyon, Université Claude Bernard Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne 69622, France
| | - Yves Chevalier
- CNRS, LAGEPP UMR 5007, Univ Lyon, Université Claude Bernard Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne 69622, France
| | - Laurence Heinrich-Balard
- INSA Lyon, CNRS, MATEIS, UMR5510, Univ Lyon, Université Claude Bernard Lyon 1, Villeurbanne 69100, France
| | - René M Botnar
- School of Biomedical Engineering and Imaging Sciences, King's College London, Westminster Bridge Road, London SE1 7EH, United Kingdom.,Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna, Santiago 4860, Chile
| | | | - Giuseppe Digilio
- Department of Science and Technologic Innovation, Università del Piemonte Orientale ″Amedeo Avogadro″, Viale T. Michel 11, Alessandria 15121, Italy
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15
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Schmelzer CEH, Duca L. Elastic fibers: formation, function, and fate during aging and disease. FEBS J 2021; 289:3704-3730. [PMID: 33896108 DOI: 10.1111/febs.15899] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 01/09/2023]
Abstract
Elastic fibers are extracellular components of higher vertebrates and confer elasticity and resilience to numerous tissues and organs such as large blood vessels, lungs, and skin. Their formation and maturation take place in a complex multistage process called elastogenesis. It requires interactions between very different proteins but also other molecules and leads to the deposition and crosslinking of elastin's precursor on a scaffold of fibrillin-rich microfibrils. Mature fibers are exceptionally resistant to most influences and, under healthy conditions, retain their biomechanical function over the life of the organism. However, due to their longevity, they accumulate damages during aging. These are caused by proteolytic degradation, formation of advanced glycation end products, calcification, oxidative damage, aspartic acid racemization, lipid accumulation, carbamylation, and mechanical fatigue. The resulting changes can lead to diminution or complete loss of elastic fiber function and ultimately affect morbidity and mortality. Particularly, the production of elastokines has been clearly shown to influence several life-threatening diseases. Moreover, the structure, distribution, and abundance of elastic fibers are directly or indirectly influenced by a variety of inherited pathological conditions, which mainly affect organs and tissues such as skin, lungs, or the cardiovascular system. A distinction can be made between microfibril-related inherited diseases that are the result of mutations in diverse microfibril genes and indirectly affect elastogenesis, and elastinopathies that are linked to changes in the elastin gene. This review gives an overview on the formation, structure, and function of elastic fibers and their fate over the human lifespan in health and disease.
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Affiliation(s)
- Christian E H Schmelzer
- Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany.,Institute of Pharmacy, Faculty of Natural Sciences I, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Laurent Duca
- UMR CNRS 7369 MEDyC, SFR CAP-Sante, Université de Reims Champagne-Ardenne, France
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16
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Sharma A, Sharma P, Roy S. Elastin-inspired supramolecular hydrogels: a multifaceted extracellular matrix protein in biomedical engineering. SOFT MATTER 2021; 17:3266-3290. [PMID: 33730140 DOI: 10.1039/d0sm02202k] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The phenomenal advancement in regenerative medicines has led to the development of bioinspired materials to fabricate a biomimetic artificial extracellular matrix (ECM) to support cellular survival, proliferation, and differentiation. Researchers have diligently developed protein polymers consisting of functional sequences of amino acids evolved in nature. Nowadays, certain repetitive bioinspired polymers are treated as an alternative to synthetic polymers due to their unique properties like biodegradability, easy scale-up, biocompatibility, and non-covalent molecular associations which imparts tunable supramolecular architecture to these materials. In this direction, elastin has been identified as a potential scaffold that renders extensibility and elasticity to the tissues. Elastin-like polypeptides (ELPs) are artificial repetitive polymers that exhibit lower critical solution temperature (LCST) behavior in a particular environment than synthetic polymers and hence have gained extensive interest in the fabrication of stimuli-responsive biomaterials. This review discusses in detail the unique structural aspects of the elastin and its soluble precursor, tropoelastin. Furthermore, the versatility of elastin-like peptides is discussed through numerous examples that bolster the significance of elastin in the field of regenerative medicines such as wound care, cardiac tissue engineering, ocular disorders, bone tissue regeneration, etc. Finally, the review highlights the importance of exploring short elastin-mimetic peptides to recapitulate the structural and functional aspects of elastin for advanced healthcare applications.
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Affiliation(s)
- Archita Sharma
- Institute of Nano Science and Technology (INST), Sector 81, Knowledge City, Mohali, 140306, Punjab, India.
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17
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Suyama K, Mawatari M, Tatsubo D, Maeda I, Nose T. Simple Regulation of the Self-Assembling Ability by Multimerization of Elastin-Derived Peptide (FPGVG) n Using Nitrilotriacetic Acid as a Building Block. ACS OMEGA 2021; 6:5705-5716. [PMID: 33681610 PMCID: PMC7931394 DOI: 10.1021/acsomega.0c06140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Elastin comprises hydrophobic repetitive sequences, such as Val-Pro-Gly-Val-Gly, which are thought to be important for the temperature-dependent reversible self-association (coacervation). Elastin and elastin-like peptides (ELPs), owing to their characteristics, are expected to be applied as base materials for the development of new molecular tools, such as drug-delivery system carrier and metal-scavenging agents. Recently, several studies have been reported on the dendritic or branching ELP analogues. Although the topological difference of the branched ELPs compared to their linear counterparts may lead to useful properties in biomaterials, the available information regarding the effect of branching on molecular architecture and thermoresponsive behavior of ELPs is scarce. To obtain further insight into the thermoresponsive behavior of branched ELPs, novel ELPs, such as nitrilotriacetic acid (NTA)-(FPGVG) n conjugates, that is, (NTA)-Fn analogues possessing 1-3 (FPGVG) n (n = 3, 5) molecule(s), were synthesized and investigated for their coacervation ability. Turbidity measurement of the synthesized peptide analogues revealed that (NTA)-Fn analogues showed strong coacervation ability with various strengths. The transition temperature of NTA-Fn analogues exponentially decreased with increasing number of residues. In the circular dichroism measurements, trimerization did not alter the secondary structure of each peptide chain of the NTA-Fn analogue. In addition, it was also revealed that the NTA-Fn analogue possesses one peptide chain that could be utilized as metal-scavenging agents. The study findings indicated that multimerization of short ELPs via NTA is a useful and powerful strategy to obtain thermoresponsive molecules.
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Affiliation(s)
- Keitaro Suyama
- Laboratory
of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mika Mawatari
- Department
of Chemistry, Faculty and Graduate School
of Science, Fukuoka 819-0395, Japan
| | - Daiki Tatsubo
- Department
of Chemistry, Faculty and Graduate School
of Science, Fukuoka 819-0395, Japan
| | - Iori Maeda
- Department
of Physics and Information Technology, Kyushu
Institute of Technology, Iizuka, Fukuoka 820-8502, Japan
| | - Takeru Nose
- Laboratory
of Biomolecular Chemistry, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
- Department
of Chemistry, Faculty and Graduate School
of Science, Fukuoka 819-0395, Japan
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18
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Ozsvar J, Yang C, Cain SA, Baldock C, Tarakanova A, Weiss AS. Tropoelastin and Elastin Assembly. Front Bioeng Biotechnol 2021; 9:643110. [PMID: 33718344 PMCID: PMC7947355 DOI: 10.3389/fbioe.2021.643110] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Elastic fibers are an important component of the extracellular matrix, providing stretch, resilience, and cell interactivity to a broad range of elastic tissues. Elastin makes up the majority of elastic fibers and is formed by the hierarchical assembly of its monomer, tropoelastin. Our understanding of key aspects of the assembly process have been unclear due to the intrinsic properties of elastin and tropoelastin that render them difficult to study. This review focuses on recent developments that have shaped our current knowledge of elastin assembly through understanding the relationship between tropoelastin’s structure and function.
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Affiliation(s)
- Jazmin Ozsvar
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.,School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Chengeng Yang
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, United States
| | - Stuart A Cain
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Clair Baldock
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Anna Tarakanova
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, United States.,Department of Mechanical Engineering, University of Connecticut, Storrs, CT, United States
| | - Anthony S Weiss
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.,School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia.,Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia
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19
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Reichheld SE, Muiznieks LD, Huynh Q, Wang N, Ing C, Miao M, Sitarz EE, Pomès R, Sharpe S, Keeley FW. The evolutionary background and functional consequences of the rs2071307 polymorphism in human tropoelastin. Biopolymers 2020; 112:e23414. [PMID: 33351193 DOI: 10.1002/bip.23414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 01/01/2023]
Abstract
Elastin is a major polymeric protein of the extracellular matrix, providing critical properties of extensibility and elastic recoil. The rs2071307 genomic polymorphism, resulting in the substitution of a serine for a glycine residue in a VPG motif in tropoelastin, has an unusually high minor allele frequency in humans. A consequence of such allelic heterozygosity would be the presence of a heterogeneous elastin polymer in up to 50% of the population, a situation which appears to be unique to Homo sapiens. VPG motifs are extremely common in hydrophobic domains of tropoelastins and are the sites of transient β-turns that are essential for maintaining the conformational flexibility required for its function as an entropic elastomer. Earlier data demonstrated that single amino acid substitutions in tropoelastin can have functional consequences for polymeric elastin, particularly when present in mixed polymers. Here, using NMR and molecular dynamics approaches, we show the rs2071307 polymorphism reduces local propensity for β-turn formation, with a consequent increase in polypeptide hydration and an expansion of the conformational ensemble manifested as an increased hydrodynamic radius, radius of gyration and asphericity. Furthermore, this substitution affects functional properties of polymeric elastin, particularly in heterogeneous polymers mimicking allelic heterozygosity. We discuss whether such effects, together with the unusually high minor allele frequency of the polymorphism, could imply some some evolutionary advantage for the heterozygous state.
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Affiliation(s)
- Sean E Reichheld
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA
| | - Lisa D Muiznieks
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA.,Elvesys Microfluidics Innovation Center, 172 rue de Charonne, 75011, Paris, France
| | - Quang Huynh
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA
| | - Nick Wang
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA.,135 W 52nd St. Apt 20A, 10019-7691, New York, New York, USA
| | - Christopher Ing
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA.,ProteinQure, Suite 304, 119 Spadina Avenue, M5V2L1, Toronto, Ontario, Canada
| | - Ming Miao
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA
| | - Eva E Sitarz
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA
| | - Régis Pomès
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA.,Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Simon Sharpe
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA.,Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Fred W Keeley
- Molecular Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, USA.,Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
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20
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Rajab TK, O’Malley TJ, Tchantchaleishvili V. Decellularized scaffolds for tissue engineering: Current status and future perspective. Artif Organs 2020; 44:1031-1043. [DOI: 10.1111/aor.13701] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/10/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022]
Affiliation(s)
| | - Thomas J. O’Malley
- Division of Cardiac Surgery Thomas Jefferson University Philadelphia PA USA
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21
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Abstract
Elastic fibers are found in the extracellular matrix (ECM) of tissues requiring resilience and depend on elasticity. Elastin and its degradation products have multiple roles in the oncologic process. In many malignancies, the remodeled ECM expresses high levels of the elastin protein which may have either positive or negative effects on tumor growth. Elastin cross-linking with other ECM components and the enzymes governing this process all have effects on tumorigenesis. Elastases, and specifically neutrophil elastase, are key drivers of invasion and metastasis and therefore are important targets for inhibition. Elastin degradation leads to the generation of bioactive fragments and elastin-derived peptides that further modulate tumor growth and spread. Interestingly, elastin-like peptides (ELP) and elastin-derived peptides (EDP) may also be utilized as nano-carriers to combat tumor growth. EDPs drive tumor development in a variety of ways, and specifically targeting EDPs and their binding proteins are major objectives for ongoing and future anti-cancer therapies. Research on both the direct anti-cancer activity and the drug delivery capabilities of ELPs is another area likely to result in novel therapeutic agents in the near future.
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22
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Vindin H, Mithieux SM, Weiss AS. Elastin architecture. Matrix Biol 2019; 84:4-16. [DOI: 10.1016/j.matbio.2019.07.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 07/08/2019] [Accepted: 07/08/2019] [Indexed: 11/15/2022]
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23
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Hedtke T, Schräder CU, Heinz A, Hoehenwarter W, Brinckmann J, Groth T, Schmelzer CEH. A comprehensive map of human elastin cross-linking during elastogenesis. FEBS J 2019; 286:3594-3610. [PMID: 31102572 DOI: 10.1111/febs.14929] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/09/2019] [Accepted: 05/15/2019] [Indexed: 01/05/2023]
Abstract
Elastin is an essential structural protein in the extracellular matrix of vertebrates. It is the core component of elastic fibers, which enable connective tissues such as those of the skin, lungs or blood vessels to stretch and recoil. This function is provided by elastin's exceptional properties, which mainly derive from a unique covalent cross-linking between hydrophilic lysine-rich motifs of units of the monomeric precursor tropoelastin. To date, elastin's cross-linking is poorly investigated. Here, we purified elastin from human tissue and cleaved it into soluble peptides using proteases with different specificities. We then analyzed elastin's molecular structure by identifying unmodified residues, post-translational modifications and cross-linked peptides by high-resolution mass spectrometry and amino acid analysis. The data revealed the presence of multiple isoforms in parallel and a complex and heterogeneous molecular interconnection. We discovered that the same lysine residues in different monomers were simultaneously involved in various cross-link types or remained unmodified. Furthermore, both types of cross-linking domains, Lys-Pro and Lys-Ala domains, participate not only in bifunctional inter- but also in intra-domain cross-links. We elucidated the sequences of several desmosine-containing peptides and the contribution of distinct domains such as 6, 14 and 25. In contrast to earlier assumptions proposing that desmosine cross-links are formed solely between two domains, we elucidated the structure of a peptide that proves a desmosine formation with participation of three Lys-Ala domains. In summary, these results provide new and detailed insights into the cross-linking process, which takes place within and between human tropoelastin units in a stochastic manner.
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Affiliation(s)
- Tobias Hedtke
- Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany.,Biomedical Materials Group, Institute of Pharmacy, Faculty of Natural Sciences I, Martin Luther University Halle-Wittenberg, Germany
| | - Christoph U Schräder
- Institute of Pharmacy, Faculty of Natural Sciences I, Martin Luther University Halle-Wittenberg, Germany
| | - Andrea Heinz
- Institute of Pharmacy, Faculty of Natural Sciences I, Martin Luther University Halle-Wittenberg, Germany.,Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Wolfgang Hoehenwarter
- Proteome Analytics Research Group, Leibniz Institute for Plant Biochemistry, Halle (Saale), Germany
| | - Jürgen Brinckmann
- Institute of Virology and Cell Biology & Department of Dermatology, University of Lübeck, Germany
| | - Thomas Groth
- Biomedical Materials Group, Institute of Pharmacy, Faculty of Natural Sciences I, Martin Luther University Halle-Wittenberg, Germany
| | - Christian E H Schmelzer
- Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany.,Institute of Pharmacy, Faculty of Natural Sciences I, Martin Luther University Halle-Wittenberg, Germany.,Institute of Applied Dermatopharmacy at the Martin Luther University Halle-Wittenberg (IADP), Germany
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24
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Cao M, Shen Y, Wang Y, Wang X, Li D. Self-Assembly of Short Elastin-like Amphiphilic Peptides: Effects of Temperature, Molecular Hydrophobicity and Charge Distribution. Molecules 2019; 24:E202. [PMID: 30625991 PMCID: PMC6337584 DOI: 10.3390/molecules24010202] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 12/31/2018] [Accepted: 01/07/2019] [Indexed: 11/21/2022] Open
Abstract
A novel type of self-assembling peptides has been developed by introducing the basic elastomeric β-turn units of elastin protein into the amphiphilic peptide molecules. The self-assembly behaviors of such peptides are affected by the overall molecular hydrophobicity, charge distribution and temperature. The molecules with higher hydrophobicity exhibit better self-assembling capability to form long fibrillar nanostructures. For some peptides, the temperature increase can not only promote the self-assembly process but also change the self-assembly routes. The self-assembly of the peptides with two charges centralized on one terminal show higher dependence on temperature than the peptides with two charges distributed separately on the two terminals. The study probes into the self-assembly behaviors of short elastin-like peptides and is of great help for developing novel self-assembling peptides with thermo sensitivity.
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Affiliation(s)
- Meiwen Cao
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao Economic Development Zone, Qingdao 266580, China.
| | - Yang Shen
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao Economic Development Zone, Qingdao 266580, China.
| | - Yu Wang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao Economic Development Zone, Qingdao 266580, China.
| | - Xiaoling Wang
- Personnel Department and School of Blue Economy Engineering, Qingdao Vocational and Technical College, Qingdao Economic and Technological Development Zone, Qingdao 266555, China.
| | - Dongxiang Li
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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25
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Gu BH, Madison MC, Corry D, Kheradmand F. Matrix remodeling in chronic lung diseases. Matrix Biol 2018; 73:52-63. [PMID: 29559389 PMCID: PMC6141350 DOI: 10.1016/j.matbio.2018.03.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/08/2018] [Accepted: 03/15/2018] [Indexed: 12/11/2022]
Abstract
Multicellular organisms synthesize and renew components of their subcellular and scaffolding proteins, collectively known as the extracellular matrix molecules (ECMs). In the lung, ECMs maintain tensile strength, elasticity, and dictate the specialized function of multiple cell lineages. These functions are critical in lung homeostatic processes including cellular migration and proliferation during morphogenesis or in response to repair. Alterations in lung ECMs that expose cells to new cryptic fragments, generated in response to endogenous proteinases or exogenous toxins, are associated with the development of several common respiratory diseases. How lung ECMs provide or relay vital signals to epithelial and mesenchymal cells has shed new light on development and progression of several common chronic respiratory diseases. This review will consider how ECMs regulate lung homeostasis and their reorganization under pathological conditions that can modulate the inflammatory diseases asthma, chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF). Better understanding of changes in the distribution of lung ECM could provide novel therapeutic approaches to treat chronic lung diseases.
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Affiliation(s)
- Bon-Hee Gu
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Matthew C Madison
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Interdepartmental Program in Translational Biology and Molecular Medicine Houston, TX 77030, USA
| | - David Corry
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Interdepartmental Program in Translational Biology and Molecular Medicine Houston, TX 77030, USA; Center for Translational Research in Inflammatory Diseases, Michael E. DeBakey VA, Houston, TX 77030, USA; Biology of Inflammation Center, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Farrah Kheradmand
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Interdepartmental Program in Translational Biology and Molecular Medicine Houston, TX 77030, USA; Center for Translational Research in Inflammatory Diseases, Michael E. DeBakey VA, Houston, TX 77030, USA; Biology of Inflammation Center, Baylor College of Medicine, Houston, TX 77030, USA.
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26
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Affiliation(s)
- Raphaël Duivenvoorden
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY (R.D., W.J.M.M.).,Division of Nephrology, Department of Internal Medicine, Amsterdam Cardiovascular Sciences (R.D.)
| | - Willem J M Mulder
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY (R.D., W.J.M.M.).,Department of Medical Biochemistry (W.J.M.M.), Amsterdam University Medical Centers, Academic Medical Center, The Netherlands.,Laboratory of Chemical Biology Cluster, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, The Netherlands (W.J.M.M.)
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27
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Suyama K, Tatsubo D, Iwasaki W, Miyazaki M, Kiyota Y, Takahashi I, Maeda I, Nose T. Enhancement of Self-Aggregation Properties of Linear Elastin-Derived Short Peptides by Simple Cyclization: Strong Self-Aggregation Properties of Cyclo[FPGVG] n, Consisting Only of Natural Amino Acids. Biomacromolecules 2018; 19:3201-3211. [PMID: 29932654 DOI: 10.1021/acs.biomac.8b00353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Elastin-like peptides (ELPs) consist of distinctive repetitive sequences, such as (VPGVG) n, exhibit temperature-dependent reversible self-assembly (coacervation), and have been considered to be useful for the development of thermoresponsive materials. Further fundamental studies evaluating coacervative properties of novel nonlinear ELPs could present design concepts for new thermoresponsive materials. In this study, we prepared novel ELPs, cyclic (FPGVG) n (cyclo[FPGVG] n, n = 1-5), and analyzed their self-assembly properties and structural characteristics. Cyclo[FPGVG] n ( n = 3-5) demonstrated stronger coacervation capacity than the corresponding linear peptides. The coacervate of cyclo[FPGVG]5 was able to retain water-soluble dye molecules at 40 °C, which implied that cyclo[FPGVG]5 could be employed as a base material of DDS (drug delivery system) matrices and other biomaterials. The results of molecular dynamics simulations and circular dichroism measurements suggested that a certain chain length was required for cyclo[FPGVG] n to demonstrate alterations in molecular structure that were critical to the exhibition of coacervation.
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Affiliation(s)
- Keitaro Suyama
- Faculty of Arts and Science , Kyushu University , Fukuoka 819-0395 , Japan
| | - Daiki Tatsubo
- Department of Chemistry, Faculty and Graduate School of Science , Kyushu University , Fukuoka 819-0395 , Japan
| | - Wataru Iwasaki
- Advanced Manufacturing Research Institute , National Institute of Advanced Industrial Science and Technology (AIST) , Tosu, Saga 841-0052 , Japan
| | - Masaya Miyazaki
- Department of Bioscience and Bioinformatics , Kyushu Institute of Technology , Iizuka, Fukuoka 820-8502 , Japan
| | - Yuhei Kiyota
- Division of Applied Chemistry , Faculty of Engineering, Hokkaido University , Sapporo 060-0810 , Japan
| | - Ichiro Takahashi
- Division of Oral Health, Growth and Development, Faculty of Dental Science , Kyushu University , Fukuoka 812-8582 , Japan
| | - Iori Maeda
- Department of Bioscience and Bioinformatics , Kyushu Institute of Technology , Iizuka, Fukuoka 820-8502 , Japan
| | - Takeru Nose
- Faculty of Arts and Science , Kyushu University , Fukuoka 819-0395 , Japan.,Department of Chemistry, Faculty and Graduate School of Science , Kyushu University , Fukuoka 819-0395 , Japan
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28
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Abstract
Polyproteins, individual protein units joined covalently in tandem, have evolved as a promising tool for measuring the dynamic folding of biomacromolecules in single-molecule force spectroscopy. However, the synthetic routes to prepare polyproteins have been a bottleneck, and urge development of in vitro methods to knit individual protein units covalently into polyprotein. Employing two enzymes of orthogonal functionalities periodically in sequence, we synthesized monodispersed polyproteins on a solid surface. We used Sortase A (SrtA), the enzyme known for sequence specific transpeptidation, to staple protein units covalently through peptide bonds. Exploiting the sequence-specific peptide cleaving ability of TEV protease, we controlled the progress of the reaction to one attachment at a time. Finally, with unique design of the unit proteins we control the orientation of proteins in polyprotein. This simple conjugation has the potential to staple proteins with different functionalities and from different expression systems, in any number in the polyprotein and, above all, via irreversible peptide bonds. Multiple chimeric constructs can also be synthesized with interchangeable protein units.
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Affiliation(s)
- S. Garg
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Punjab, India
| | - G. S. Singaraju
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Punjab, India
| | - S. Yenghkom
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Punjab, India
| | - S. Rakshit
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Punjab, India
- Centre for Protein Science Design and Engineering, Indian Institute of Science Education and Research Mohali, Punjab, India
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29
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Dzuricky M, Roberts S, Chilkoti A. Convergence of Artificial Protein Polymers and Intrinsically Disordered Proteins. Biochemistry 2018; 57:2405-2414. [PMID: 29683665 DOI: 10.1021/acs.biochem.8b00056] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A flurry of research in recent years has revealed the molecular origins of many membraneless organelles to be the liquid phase separation of intrinsically disordered proteins (IDPs). Consequently, protein disorder has emerged as an important driver of intracellular compartmentalization by providing specialized microenvironments chemically distinct from the surrounding medium. Though the importance of protein disorder and its relationship to intracellular phase behavior are clear, a detailed understanding of how such phase behavior can be predicted and controlled remains elusive. While research in IDPs has largely focused on the implications of structural disorder on cellular function and disease, another field, that of artificial protein polymers, has focused on the de novo design of protein polymers with controllable material properties. A subset of these polymers, specifically those derived from structural proteins such as elastin and resilin, are also disordered sequences that undergo liquid-liquid phase separation. This phase separation has been used in a variety of biomedical applications, and researchers studying these polymers have developed methods to precisely characterize and tune their phase behavior. Despite their disparate origins, both fields are complementary as they study the phase behavior of intrinsically disordered polypeptides. This Perspective hopes to stimulate collaborative efforts by highlighting the similarities between these two fields and by providing examples of how such collaboration could be mutually beneficial.
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Affiliation(s)
- Michael Dzuricky
- Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708-0281 , United States
| | - Stefan Roberts
- Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708-0281 , United States
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708-0281 , United States
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30
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Duque Lasio ML, Kozel BA. Elastin-driven genetic diseases. Matrix Biol 2018; 71-72:144-160. [PMID: 29501665 DOI: 10.1016/j.matbio.2018.02.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/23/2018] [Accepted: 02/23/2018] [Indexed: 02/08/2023]
Abstract
Elastic fibers provide recoil to tissues that undergo repeated deformation, such as blood vessels, lungs and skin. Composed of elastin and its accessory proteins, the fibers are produced within a restricted developmental window and are stable for decades. Their eventual breakdown is associated with a loss of tissue resiliency and aging. Rare alteration of the elastin (ELN) gene produces disease by impacting protein dosage (supravalvar aortic stenosis, Williams Beuren syndrome and Williams Beuren region duplication syndrome) and protein function (autosomal dominant cutis laxa). This review highlights aspects of the elastin molecule and its assembly process that contribute to human disease and also discusses potential therapies aimed at treating diseases of elastin insufficiency.
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Affiliation(s)
| | - Beth A Kozel
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, MD, USA.
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31
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Wang Y, Li H, Zhang Y. Understanding the viscoelastic behavior of arterial elastin in glucose via relaxation time distribution spectrum. J Mech Behav Biomed Mater 2018; 77:634-641. [DOI: 10.1016/j.jmbbm.2017.10.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 10/10/2017] [Accepted: 10/16/2017] [Indexed: 01/05/2023]
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32
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TANAKA E, AYTEMIZ D, TARA S, NAKAZAWA Y. Fabrication and Characterization of Elastin-Crosslinked Silk Fibroin Material for Tissue Engineering. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Emiri TANAKA
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology
| | - Derya AYTEMIZ
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Shuhei TARA
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Yasumoto NAKAZAWA
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology
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33
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Lee P, Yeo GC, Weiss AS. A cell adhesive peptide from tropoelastin promotes sequential cell attachment and spreading via distinct receptors. FEBS J 2017; 284:2216-2230. [DOI: 10.1111/febs.14114] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/30/2017] [Accepted: 05/17/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Pearl Lee
- School of Life and Environmental Sciences University of Sydney Australia
- Bosch Institute University of Sydney Australia
- Charles Perkins Centre University of Sydney Australia
| | - Giselle C. Yeo
- School of Life and Environmental Sciences University of Sydney Australia
- Charles Perkins Centre University of Sydney Australia
- Applied and Plasma Physics School of Physics University of Sydney Australia
| | - Anthony S. Weiss
- School of Life and Environmental Sciences University of Sydney Australia
- Bosch Institute University of Sydney Australia
- Charles Perkins Centre University of Sydney Australia
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34
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Suyama K, Taniguchi S, Tatsubo D, Maeda I, Nose T. Dimerization effects on coacervation property of an elastin-derived synthetic peptide (FPGVG)5. J Pept Sci 2016; 22:236-43. [PMID: 27028208 DOI: 10.1002/psc.2876] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/11/2016] [Accepted: 02/23/2016] [Indexed: 11/08/2022]
Abstract
Elastin, a core protein of the elastic fibers, exhibits the coacervation (temperature-dependent reversible association/dissociation) under physiological conditions. Because of this characteristic, elastin and elastin-derived peptides have been considered to be useful as base materials for developing various biomedical products, skin substitutes, synthetic vascular grafts, and drug delivery systems. Although elastin-derived polypeptide (Val-Pro-Gly-Val-Gly)n also has been known to demonstrate coacervation property, a sufficiently high (VPGVG)n repetition number (n>40) is required for coacervation. In the present study, a series of elastin-derived peptide (Phe-Pro-Gly-Val-Gly)5 dimers possessing high coacervation potential were newly developed. These novel dimeric peptides exhibited coacervation at significantly lower concentrations and temperatures than the commonly used elastin-derived peptide analogs; this result suggests that the coacervation ability of the peptides is enhanced by dimerization. Circular dichroism (CD) measurements indicate that the dimers undergo similar temperature-dependent and reversible conformational changes when coacervation occurs. The molecular dynamics calculation results reveal that the sheet-turn-sheet motif involving a type II β-turn-like structure commonly observed among the dimers and caused formation of globular conformation of them. These synthesized peptide dimers may be useful not only as model peptides for structural analysis of elastin and elastin-derived peptides, but also as base materials for developing various temperature-sensitive biomedical and industrial products.
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Affiliation(s)
- Keitaro Suyama
- Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Suguru Taniguchi
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Daiki Tatsubo
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Iori Maeda
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Takeru Nose
- Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan.,Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
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35
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Reppert M, Roy AR, Tempkin JOB, Dinner AR, Tokmakoff A. Refining Disordered Peptide Ensembles with Computational Amide I Spectroscopy: Application to Elastin-Like Peptides. J Phys Chem B 2016; 120:11395-11404. [PMID: 27736076 DOI: 10.1021/acs.jpcb.6b08678] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The characterization of intrinsically disordered protein (IDP) ensembles is complicated both by inherent heterogeneity and by the fact that many common experimental techniques function poorly when applied to IDPs. For this reason, the development of alternative structural tools for probing IDP ensembles has attracted considerable attention. Here we describe our recent work in developing experimental and computational tools for characterizing IDP ensembles using Amide I (backbone carbonyl stretch) vibrational spectroscopy. In this approach, the infrared (IR) absorption frequencies of isotope-labeled amide bonds probe their local electrostatic environments and structures. Empirical frequency maps allow us to use this spectroscopic data as a direct experimental test of atomistic structural models. We apply these methods to a family of short elastin-like peptides (ELPs), fragments of the elastin protein based around the Pro-Gly turn motif characteristic of the elastomeric segments of the full protein. Using a maximum entropy analysis that applies constraints from experimental spectra to weighting predicted spectra from molecular dynamics (MD) ensembles, we find that peptides with Ala or Val side chains preceding the Pro-Gly turn unit exhibit a stronger tendency toward extended structures than do Gly-Pro-Gly motifs, suggesting an important role for steric interactions in tuning the molecular properties of elastin.
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Affiliation(s)
- Mike Reppert
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States.,Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Anish R Roy
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States
| | - Jeremy O B Tempkin
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States
| | - Aaron R Dinner
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States
| | - Andrei Tokmakoff
- Department of Chemistry and James Franck Institute, University of Chicago , Chicago, Illinois 60637, United States
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36
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Muiznieks LD, Keeley FW. Biomechanical Design of Elastic Protein Biomaterials: A Balance of Protein Structure and Conformational Disorder. ACS Biomater Sci Eng 2016; 3:661-679. [DOI: 10.1021/acsbiomaterials.6b00469] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lisa D. Muiznieks
- Molecular
Structure and Function Program, Research Institute, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario, Canada M5G 0A4
| | - Fred W. Keeley
- Molecular
Structure and Function Program, Research Institute, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario, Canada M5G 0A4
- Department
of Biochemistry and Department of Laboratory Medicine and Pathobiology, 1 King’s College Circle, University of Toronto, Toronto, Ontario, Canada M5S 1A8
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37
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Aghaei-Ghareh-Bolagh B, Mithieux SM, Weiss AS. Elastic proteins and elastomeric protein alloys. Curr Opin Biotechnol 2016; 39:56-60. [PMID: 26780495 PMCID: PMC4899202 DOI: 10.1016/j.copbio.2015.12.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 12/26/2015] [Accepted: 12/29/2015] [Indexed: 10/22/2022]
Abstract
The elastomeric proteins elastin and resilin have been used extensively in the fabrication of biomaterials for tissue engineering applications due to their unique mechanical and biological properties. Tropoelastin is the soluble monomer component of elastin. Tropoelastin and resilin are both highly elastic with high resilience, substantial extensibility, high durability and low energy loss, which makes them excellent candidates for the fabrication of elastic tissues that demand regular and repetitive movement like the skin, lung, blood vessels, muscles and vocal folds. Combinations of these proteins with silk fibroin further enhance their biomechanical and biological properties leading to a new class of protein alloy materials with versatile properties. In this review, the properties of tropoelastin-based and resilin-based biomaterials with and without silk are described in concert with examples of their applications in tissue engineering.
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Affiliation(s)
- Behnaz Aghaei-Ghareh-Bolagh
- Molecular Bioscience, University of Sydney, NSW 2006, Australia; Charles Perkins Centre, University of Sydney, NSW 2006, Australia; Bosch Institute, University of Sydney, NSW 2006, Australia
| | - Suzanne M Mithieux
- Molecular Bioscience, University of Sydney, NSW 2006, Australia; Charles Perkins Centre, University of Sydney, NSW 2006, Australia; Bosch Institute, University of Sydney, NSW 2006, Australia
| | - Anthony S Weiss
- Molecular Bioscience, University of Sydney, NSW 2006, Australia; Charles Perkins Centre, University of Sydney, NSW 2006, Australia; Bosch Institute, University of Sydney, NSW 2006, Australia.
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38
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Li H, Kong N, Laver B, Liu J. Hydrogels Constructed from Engineered Proteins. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:973-987. [PMID: 26707834 DOI: 10.1002/smll.201502429] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/23/2015] [Indexed: 06/05/2023]
Abstract
Due to their various potential biomedical applications, hydrogels based on engineered proteins have attracted considerable interest. Benefitting from significant progress in recombinant DNA technology and protein engineering/design techniques, the field of protein hydrogels has made amazing progress. The latest progress of hydrogels constructed from engineered recombinant proteins are presented, mainly focused on biorecognition-driven physical hydrogels as well as chemically crosslinked hydrogels. The various bio-recognition based physical crosslinking strategies are discussed, as well as chemical crosslinking chemistries used to engineer protein hydrogels, and protein hydrogels' various biomedical applications. The future perspectives of this fast evolving field of biomaterials are also discussed.
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Affiliation(s)
- Hongbin Li
- Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - Na Kong
- Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - Bryce Laver
- Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - Junqiu Liu
- Key Lab for Supramolecular Structure and Materials, Jilin University, Changchun, Jilin Province, 130012, P. R. China
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39
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Taniguchi S, Watanabe N, Nose T, Maeda I. Development of short and highly potent self-assembling elastin-derived pentapeptide repeats containing aromatic amino acid residues. J Pept Sci 2015; 22:36-42. [PMID: 26662843 DOI: 10.1002/psc.2837] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/11/2015] [Accepted: 10/21/2015] [Indexed: 11/07/2022]
Abstract
Tropoelastin is the primary component of elastin, which forms the elastic fibers that make up connective tissues. The hydrophobic domains of tropoelastin are thought to mediate the self-assembly of elastin into fibers, and the temperature-mediated self-assembly (coacervation) of one such repetitive peptide sequence (VPGVG) has been utilized in various bio-applications. To elucidate a mechanism for coacervation activity enhancement and to develop more potent coacervatable elastin-derived peptides, we synthesized two series of peptide analogs containing an aromatic amino acid, Trp or Tyr, in addition to Phe-containing analogs and tested their functional characteristics. Thus, position 1 of the hydrophobic pentapeptide repeat of elastin (X(1)P(2)G(3)V(4)G(5)) was substituted by Trp or Tyr. Eventually, we acquired a novel, short Trp-containing elastin-derived peptide analog (WPGVG)3 with potent coacervation ability. From the results obtained during this process, we determined the importance of aromaticity and hydrophobicity for the coacervation potency of elastin-derived peptide analogs. Generally, however, the production of long-chain synthetic polypeptides in quantities sufficient for commercial use remain cost-prohibitive. Therefore, the identification of (WPGVG)3, which is a 15-mer short peptide consisting simply of five natural amino acids and shows temperature-dependent self-assembly activity, might serve as a foundation for the development of various kinds of biomaterials.
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Affiliation(s)
- Suguru Taniguchi
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Noriko Watanabe
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Takeru Nose
- Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Iori Maeda
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
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40
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Langton AK, Sherratt MJ, Griffiths CEM, Watson REB. A new wrinkle on old skin: the role of elastic fibres in skin ageing. Int J Cosmet Sci 2015; 32:330-9. [PMID: 20572890 DOI: 10.1111/j.1468-2494.2010.00574.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cutaneous ageing is the result of two distinct, biological processes which may occur concurrently: (i) the passage of time, termed intrinsic ageing and (ii) environmental influences, termed extrinsic ageing. Intrinsic ageing of the skin is a slow process which causes changes in tissue structure and impairs function in the absence of additional biological, chemical and physical factors. The clinical features of intrinsically aged skin are not usually evident until old age when, although smooth and unblemished, the skin surface appears pale and is characterized by fine wrinkles with occasional exaggerated expression lines. Functionally, intrinsically aged skin is dry and less elastic than more youthful skin. In contrast, extrinsically aged skin is exemplified by deep, coarse wrinkles, mottled hyperpigmentation and a marked loss of elasticity and recoil. The two major environmental influences which induce extrinsic ageing are: (i) chronic exposure to solar ultraviolet (UV) irradiation (termed photoageing) and (ii) smoking. This review discusses the changes associated with the ageing process in the skin, with particular emphasis on the role played by the elastic fibre network in maintaining dermal function. The review concludes with a discussion of a short-term assay for independent assessment of the efficacy of anti-ageing cosmetic products using the elastic fibre component fibrillin-1 as a biomarker of extracellular matrix repair.
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Affiliation(s)
- A K Langton
- Dermatological Sciences, School of Translational Medicine
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41
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Yang J, Zhao HL, Ran LY, Li CY, Zhang XY, Su HN, Shi M, Zhou BC, Chen XL, Zhang YZ. Mechanistic insights into elastin degradation by pseudolysin, the major virulence factor of the opportunistic pathogen Pseudomonas aeruginosa. Sci Rep 2015; 5:9936. [PMID: 25905792 PMCID: PMC4407726 DOI: 10.1038/srep09936] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 03/12/2015] [Indexed: 01/01/2023] Open
Abstract
Pseudolysin is the most abundant protease secreted by Pseudomonas aeruginosa and is the major extracellular virulence factor of this opportunistic human pathogen. Pseudolysin destroys human tissues by solubilizing elastin. However, the mechanisms by which pseudolysin binds to and degrades elastin remain elusive. In this study, we investigated the mechanism of action of pseudolysin on elastin binding and degradation by biochemical assay, microscopy and site-directed mutagenesis. Pseudolysin bound to bovine elastin fibers and preferred to attack peptide bonds with hydrophobic residues at the P1 and P1’ positions in the hydrophobic domains of elastin. The time-course degradation processes of both bovine elastin fibers and cross-linked human tropoelastin by pseudolysin were further investigated by microscopy. Altogether, the results indicate that elastin degradation by pseudolysin began with the hydrophobic domains on the fiber surface, followed by the progressive disassembly of macroscopic elastin fibers into primary structural elements. Moreover, our site-directed mutational results indicate that five hydrophobic residues in the S1-S1’ sub-sites played key roles in the binding of pseudolysin to elastin. This study sheds lights on the pathogenesis of P. aeruginosa infection.
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Affiliation(s)
- Jie Yang
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Hui-Lin Zhao
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Li-Yuan Ran
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Chun-Yang Li
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Xi-Ying Zhang
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Hai-Nan Su
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Mei Shi
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Bai-Cheng Zhou
- Biotechnology Research Center, Shandong University, Jinan 250100, China
| | - Xiu-Lan Chen
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China [3] Collaborative Innovation Center of Deep Sea Biology, Shandong University, Jinan 250100, China
| | - Yu-Zhong Zhang
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China [2] Biotechnology Research Center, Shandong University, Jinan 250100, China [3] Collaborative Innovation Center of Deep Sea Biology, Shandong University, Jinan 250100, China
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42
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Yang J, Zhao HL, Tang BL, Chen XL, Su HN, Zhang XY, Song XY, Zhou BC, Xie BB, Weiss AS, Zhang YZ. Mechanistic insight into the elastin degradation process by the metalloprotease myroilysin from the deep-sea bacterium Myroides profundi D25. Mar Drugs 2015; 13:1481-96. [PMID: 25793427 PMCID: PMC4377995 DOI: 10.3390/md13031481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 03/10/2015] [Indexed: 02/01/2023] Open
Abstract
Elastases have been widely studied because of their important uses as medicine and meat tenderizers. However, there are relatively few studies on marine elastases. Myroilysin, secreted by Myroides profundi D25 from deep-sea sediment, is a novel elastase. In this study, we examined the elastin degradation mechanism of myroilysin. When mixed with insoluble bovine elastin, myroilysin bound hydrophobically, suggesting that this elastase may interact with the hydrophobic domains of elastin. Consistent with this, analysis of the cleavage pattern of myroilysin on bovine elastin and recombinant tropoelastin revealed that myroilysin preferentially cleaves peptide bonds with hydrophobic residues at the P1 and/or P1′ positions. Scanning electron microscopy (SEM) of cross-linked recombinant tropoelastin degraded by myroilysin showed preferential damages of spherules over cross-links, as expected for a hydrophobic preference. The degradation process of myroilysin on bovine elastin fibres was followed by light microscopy and SEM, revealing that degradation begins with the formation of crevices and cavities at the fibre surface, with these openings increasing in number and size until the fibre breaks into small pieces, which are subsequently fragmented. Our results are helpful for developing biotechnological applications for myroilysin.
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Affiliation(s)
- Jie Yang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Hui-Lin Zhao
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Department of Pathogenic Biology, Binzhou Medical University, Shandong Province, Yantai 264003, China.
| | - Bai-Lu Tang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Xiu-Lan Chen
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Hai-Nan Su
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Xi-Ying Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Xiao-Yan Song
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Bai-Cheng Zhou
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Bin-Bin Xie
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
| | - Anthony S Weiss
- School of Molecular Bioscience, The University of Sydney, NSW 2006, Australia.
| | - Yu-Zhong Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
- Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
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Smits FCM, Buddingh BC, van Eldijk MB, van Hest JCM. Elastin-like polypeptide based nanoparticles: design rationale toward nanomedicine. Macromol Biosci 2014; 15:36-51. [PMID: 25407963 DOI: 10.1002/mabi.201400419] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 10/17/2014] [Indexed: 11/06/2022]
Abstract
Elastin-like polypeptides (ELPs) are characterized by a high sequence control, temperature responsiveness and biocompatibility, which make them highly interesting as smart materials for application in nanomedicine. In particular the construction of ELP-based nanoparticles has recently become a focal point of attention in materials research. This review will give an overview of the ELP-based nanoparticles that have been developed until now and their underlying design principles. First a short introduction on ELPs and their stimulus-responsive behavior will be given. This characteristic has been applied for the development of ELP-based block copolymers that can self-assemble into nanoparticles. Both the fully ELP-based as well as several ELP hybrid materials that have been reported to form nanoparticles will be discussed, which is followed by a concise description of the promising biomedical applications reported for this class of materials.
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Affiliation(s)
- Ferdinanda C M Smits
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525, AJ, Nijmegen, The Netherlands
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Bochicchio B, Laurita A, Heinz A, Schmelzer CEH, Pepe A. Investigating the role of (2S,4R)-4-hydroxyproline in elastin model peptides. Biomacromolecules 2013; 14:4278-88. [PMID: 24127724 DOI: 10.1021/bm4011529] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Post-translational modifications play a key role in defining the biological functions of proteins. Among them, the hydroxylation of proline producing the (2S,4R)-4-hydroxyproline (Hyp) is one of the most frequent modifications observed in vertebrates, being particularly abundant in the proteins of the extracellular matrix. In collagen, hydroxylation of proline plays a critical role, conferring the correct structure and mechanical strength to collagen fibers. In elastin, the exact role of this modification is not yet understood. Here we show that Hyp-containing elastin polypeptides have flexible molecular structures, analogously to proline-containing polypeptides. In turn, the self-assembly of the elastin peptides is significantly altered by the presence of Hyp, evidencing different supramolecular structures. Also the in vitro susceptibility to protease digestion is changed. These findings give a better insight into the elastic fiber formation and degradation processes in the extracellular matrix. Furthermore, our results could contribute in defining the subtle role of proline structural variants in the folding and self-assembly of elastin-inspired peptides, helping the rational design of elastin biomaterials.
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Affiliation(s)
- Brigida Bochicchio
- Department of Science, University of Basilicata , Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
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Shahmirzadi D, Narayanan P, Li RX, Qaqish WW, Konofagou EE. Mapping the longitudinal wall stiffness heterogeneities within intact canine aortas using Pulse Wave Imaging (PWI) ex vivo. J Biomech 2013; 46:1866-74. [PMID: 23764176 DOI: 10.1016/j.jbiomech.2013.04.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 01/25/2013] [Accepted: 04/26/2013] [Indexed: 12/22/2022]
Abstract
The aortic stiffness has been found to be a useful independent indicator of several cardiovascular diseases such as hypertension and aneurysms. Existing methods to estimate the aortic stiffness are either invasive, e.g. catheterization, or yield average global measurements which could be inaccurate, e.g., tonometry. Alternatively, the aortic pulse wave velocity (PWV) has been shown to be a reliable marker for estimating the wall stiffness based on the Moens-Korteweg (M-K) formulation. Pulse Wave Imaging (PWI) is a relatively new, ultrasound-based imaging method for noninvasive and regional estimation of PWV. The present study aims at showing the application of PWI in obtaining localized wall mechanical properties by making PWV measurements on several adjacent locations along the ascending thoracic to the suprarenal abdominal aortic trunk in its intact vessel form. The PWV estimates were used to calculate the regional wall modulus based on the M-K relationship and were compared against conventional mechanical testing. The findings indicated that for the anisotropic aortic wall, the PWI estimates of the modulus are smaller than the circumferential modulus by an average of -32.22% and larger than the longitudinal modulus by an average of 25.83%. Ongoing work is focused on the in vivo applications of PWI in normal and pathological aortas with future implications in the clinical applications of the technique.
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Affiliation(s)
- Danial Shahmirzadi
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
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46
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Li SH, Sun Z, Guo L, Han M, Wood MFG, Ghosh N, Vitkin IA, Weisel RD, Li RK. Elastin overexpression by cell-based gene therapy preserves matrix and prevents cardiac dilation. J Cell Mol Med 2013; 16:2429-39. [PMID: 22435995 PMCID: PMC3823437 DOI: 10.1111/j.1582-4934.2012.01560.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
After a myocardial infarction, thinning and expansion of the fibrotic scar contribute to progressive heart failure. The loss of elastin is a major contributor to adverse extracellular matrix remodelling of the infarcted heart, and restoration of the elastic properties of the infarct region can prevent ventricular dysfunction. We implanted cells genetically modified to overexpress elastin to re-establish the elastic properties of the infarcted myocardium and prevent cardiac failure. A full-length human elastin cDNA was cloned, subcloned into an adenoviral vector and then transduced into rat bone marrow stromal cells (BMSCs). In vitro studies showed that BMSCs expressed the elastin protein, which was deposited into the extracellular matrix. Transduced BMSCs were injected into the infarcted myocardium of adult rats. Control groups received either BMSCs transduced with the green fluorescent protein gene or medium alone. Elastin deposition in the infarcted myocardium was associated with preservation of myocardial tissue structural integrity (by birefringence of polarized light; P < 0.05 versus controls). As a result, infarct scar thickness and diastolic compliance were maintained and infarct expansion was prevented (P < 0.05 versus controls). Over a 9-week period, rats implanted with BMSCs demonstrated better cardiac function than medium controls; however, rats receiving BMSCs overexpressing elastin showed the greatest functional improvement (P < 0.01). Overexpression of elastin in the infarcted heart preserved the elastic structure of the extracellular matrix, which, in turn, preserved diastolic function, prevented ventricular dilation and preserved cardiac function. This cell-based gene therapy provides a new approach to cardiac regeneration.
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Affiliation(s)
- Shu-Hong Li
- Division of Cardiovascular Surgery and Toronto General Research Institute, University Health Network, University of Toronto, Toronto, ON, Canada
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47
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Delio M, Pope K, Wang T, Samanich J, Haldeman-Englert CR, Kaplan P, Shaikh TH, Cai J, Marion RW, Morrow BE, Babcock M. Spectrum of elastin sequence variants and cardiovascular phenotypes in 49 patients with Williams-Beuren syndrome. Am J Med Genet A 2013; 161A:527-33. [DOI: 10.1002/ajmg.a.35784] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2012] [Accepted: 10/24/2012] [Indexed: 11/11/2022]
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49
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Sivan SS, Van El B, Merkher Y, Schmelzer CEH, Zuurmond AM, Heinz A, Wachtel E, Varga PP, Lazary A, Brayda-Bruno M, Maroudas A. Longevity of elastin in human intervertebral disc as probed by the racemization of aspartic acid. Biochim Biophys Acta Gen Subj 2012; 1820:1671-7. [PMID: 22728886 DOI: 10.1016/j.bbagen.2012.06.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 04/30/2012] [Accepted: 06/15/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND Aging and degeneration of human intervertebral disc (IVD) are associated with biochemical changes, including racemization and glycation. These changes can only be counteracted by protein turnover. Little is known about the longevity of IVD elastin in health or disease. Yet, such knowledge is important for a quantitative understanding of tissue synthesis and degradation. METHODS We have measured the accumulation of d-Asp and pentosidine in IVD elastin. Samples representing a broad range of ages (28-82years) and degeneration grades (1-5) were analyzed. RESULTS d/l-Asp for elastin increased linearly with age from 3.2% (early 30s) to 14.8% (early 80s) for normal tissue (grades 1-2) and from 1.7% (late 20s) to 6.0% (until the mid 50s) for degenerate tissue (grades 3-5) with accumulation rates of 16.2±3.1×10(-4) and 11.7±3.8×10(-4)year(-1), respectively; no significant difference was found between these values (p<0.05). Above the mid 50s, a decrease in d-Asp accumulation was recorded in the degenerate tissue. d-Asp accumulation correlated well with pentosidine content for elastin from healthy and degenerate tissues combined. We conclude that IVD elastin is metabolically-stable and long-lived in both healthy and degenerate human IVDs, with signs of new synthesis in the latter. The correlation of d-Asp with pentosidine content suggests that both these agents may be used as markers in the overall aging process of IVD. GENERAL SIGNIFICANCE Accumulation of modified IVD elastin argues for its longevity and may have a negative impact on its role in disc function. Weak signs of newly synthesized molecules may act to counteract this effect in degenerate tissue.
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Affiliation(s)
- Sarit-Sara Sivan
- Department of Biomedical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
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50
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Burgess JK, Weckmann M. Matrikines and the lungs. Pharmacol Ther 2012; 134:317-37. [PMID: 22366287 DOI: 10.1016/j.pharmthera.2012.02.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 02/03/2012] [Indexed: 01/09/2023]
Abstract
The extracellular matrix is a complex network of fibrous and nonfibrous molecules that not only provide structure to the lung but also interact with and regulate the behaviour of the cells which it surrounds. Recently it has been recognised that components of the extracellular matrix proteins are released, often through the action of endogenous proteases, and these fragments are termed matrikines. Matrikines have biological activities, independent of their role within the extracellular matrix structure, which may play important roles in the lung in health and disease pathology. Integrins are the primary cell surface receptors, characterised to date, which are used by the matrikines to exert their effects on cells. However, evidence is emerging for the need for co-factors and other receptors for the matrikines to exert their effects on cells. The potential for matrikines, and peptides derived from these extracellular matrix protein fragments, as therapeutic agents has recently been recognised. The natural role of these matrikines (including inhibitors of angiogenesis and possibly inflammation) make them ideal targets to mimic as therapies. A number of these peptides have been taken forward into clinical trials. The focus of this review will be to summarise our current understanding of the role, and potential for highly relevant actions, of matrikines in lung health and disease.
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Affiliation(s)
- Janette K Burgess
- Cell Biology, Woolcock Institute of Medical Research, Sydney, NSW, Australia.
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