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Biswas S, Melton LD, Nelson ARJ, Le Brun AP, Heinrich F, McGillivray DJ, Xu AY. The Assembly Mechanism and Mesoscale Architecture of Protein-Polysaccharide Complexes Formed at the Solid-liquid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12551-12561. [PMID: 36194692 DOI: 10.1021/acs.langmuir.2c02003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Protein-polysaccharide composite materials have generated much interest due to their potential use in medical science and biotechnology. A comprehensive understanding of the assembly mechanism and the mesoscale architecture is needed for fabricating protein-polysaccharide composite materials with desired properties. In this study, complex assemblies were built on silica surfaces through a layer-by-layer (LbL) approach using bovine beta-lactoglobulin variant A (βLgA) and pectin as model protein and polysaccharide, respectively. We demonstrated the combined use of quartz crystal microbalance with dissipation monitoring (QCM-D) and neutron reflectometry (NR) for elucidating the assembly mechanism as well as the internal architecture of the protein-polysaccharide complexes formed at the solid-liquid interface. Our results show that βLgA and pectin interacted with each other and formed a cohesive matrix structure at the interface consisting of intertwined pectin chains that were cross-linked by βLgA-rich domains. Although the complexes were fabricated in an LbL fashion, the complexes appeared to be relatively homogeneous with βLgA and pectin molecules spatially distributed within the matrix structure. Our results also demonstrate that the density of βLgA-pectin complex assemblies increased with both the overall and local charge density of pectin molecules. Therefore, the physical properties of the protein-polysaccharide matrix structure, including density and level of hydration, can be tuned by using polysaccharides with varying charge patterns, thus promoting the development of composite materials with desired properties.
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Affiliation(s)
- Shanta Biswas
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana70803, United States
| | - Laurence D Melton
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland1142, New Zealand
| | - Andrew R J Nelson
- Australian Centre for Neutron Scattering, ANSTO, Locked Bag 2001, Kirrawee DC, New South Wales2232, Australia
| | - Anton P Le Brun
- Australian Centre for Neutron Scattering, ANSTO, Locked Bag 2001, Kirrawee DC, New South Wales2232, Australia
| | - Frank Heinrich
- Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania15213, United States
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, Maryland20899, United States
| | - Duncan J McGillivray
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland1142, New Zealand
| | - Amy Y Xu
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana70803, United States
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Miller K, Tsyrenova A, Anthony SM, Qin S, Yong X, Jiang S. Drying mediated orientation and assembly structure of amphiphilic Janus particles. SOFT MATTER 2018; 14:6793-6798. [PMID: 29972196 DOI: 10.1039/c8sm01147h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Amphiphilic Janus particles demonstrate unique assembly structures when dried on a hydrophilic substrate. Particle orientations are influenced by amphiphilicity and Janus balance. A three-stage model is developed to describe the process. Simulation further indicates the dominant force is capillary attraction due to the interface pinning at rough Janus boundaries.
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Affiliation(s)
- Kyle Miller
- Department of Materials Science and Engineering, Iowa State University of Science and Technology, Ames, IA 50011, USA.
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Girotti A, Orbanic D, Ibáñez-Fonseca A, Gonzalez-Obeso C, Rodríguez-Cabello JC. Recombinant Technology in the Development of Materials and Systems for Soft-Tissue Repair. Adv Healthc Mater 2015; 4:2423-55. [PMID: 26172311 DOI: 10.1002/adhm.201500152] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/04/2015] [Indexed: 12/16/2022]
Abstract
The field of biomedicine is constantly investing significant research efforts in order to gain a more in-depth understanding of the mechanisms that govern the function of body compartments and to develop creative solutions for the repair and regeneration of damaged tissues. The main overall goal is to develop relatively simple systems that are able to mimic naturally occurring constructs and can therefore be used in regenerative medicine. Recombinant technology, which is widely used to obtain new tailored synthetic genes that express polymeric protein-based structures, now offers a broad range of advantages for that purpose by permitting the tuning of biological and mechanical properties depending on the intended application while simultaneously ensuring adequate biocompatibility and biodegradability of the scaffold formed by the polymers. This Progress Report is focused on recombinant protein-based materials that resemble naturally occurring proteins of interest for use in soft tissue repair. An overview of recombinant biomaterials derived from elastin, silk, collagen and resilin is given, along with a description of their characteristics and suggested applications. Current endeavors in this field are continuously providing more-improved materials in comparison with conventional ones. As such, a great effort is being made to put these materials through clinical trials in order to favor their future use.
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Affiliation(s)
- Alessandra Girotti
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Doriana Orbanic
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Arturo Ibáñez-Fonseca
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Constancio Gonzalez-Obeso
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - José Carlos Rodríguez-Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
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Du X, Chen NLH, Wong A, Craik CS, Brömme D. Elastin degradation by cathepsin V requires two exosites. J Biol Chem 2013; 288:34871-81. [PMID: 24121514 DOI: 10.1074/jbc.m113.510008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cathepsin V is a highly effective elastase and has been implicated in physiological and pathological extracellular matrix degradation. However, its mechanism of action remains elusive. Whereas human cathepsin V exhibits a potent elastolytic activity, the structurally homologous cathepsin L, which shares a 78% amino acid sequence, has only a minimal proteolytic activity toward insoluble elastin. This suggests that there are distinct structural domains that play an important role in elastinolysis. In this study, a total of 11 chimeras of cathepsins V and L were generated to identify elastin-binding domains in cathepsin V. Evaluation of these chimeras revealed two exosites contributing to the elastolytic activity of cathepsin V that are distant from the active cleft of the protease and are located in surface loop regions. Replacement of exosite 1 or 2 with analogous residues from cathepsin L led to a 75 and 43% loss in the elastolytic activity, respectively. Replacement of both exosites yielded a non-elastase variant similar to that of cathepsin L. Identification of these exosites may contribute to the design of inhibitors that will only affect the elastolytic activity of cysteine cathepsins without interfering with other physiological protease functions.
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Affiliation(s)
- Xin Du
- From the Department of Biochemistry and Molecular Biology, Faculty of Medicine, Center for Blood Research, and
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Han J, Gerstenhaber JA, Lazarovici P, Lelkes PI. Tissue Factor Activity and ECM-Related Gene Expression in Human Aortic Endothelial Cells Grown on Electrospun Biohybrid Scaffolds. Biomacromolecules 2013; 14:1338-48. [DOI: 10.1021/bm400450m] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jingjia Han
- School
of Biomedical
Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104,
United States
| | - Jonathan A. Gerstenhaber
- School
of Biomedical
Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104,
United States
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, Pennsylvania 19122,
United States
| | - Philip Lazarovici
- School
of Biomedical
Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104,
United States
- School of Pharmacy
Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120,
Israel
| | - Peter I. Lelkes
- School
of Biomedical
Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104,
United States
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, Pennsylvania 19122,
United States
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Srokowski EM, Woodhouse KA. Surface and adsorption characteristics of three elastin-like polypeptide coatings with varying sequence lengths. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:71-84. [PMID: 23053802 PMCID: PMC3540362 DOI: 10.1007/s10856-012-4772-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 09/17/2012] [Indexed: 06/01/2023]
Abstract
The surface properties of a family of elastin-like polypeptides (ELPs), differing in molecular weight and sequence length, were investigated to understand how the nature of the polypeptide film might contribute to their thrombogenic profile. Physical adsorption of the ELPs onto Mylar increased surface wettability as the sequence length decreased while X-ray spectroscopy analysis showed an increasing amide content with sequence length. Chemical force microscopy analysis revealed that the ELP-coated surfaces displayed purely hydrophilic adhesion forces that increased as the ELP sequence length decreased. Adsorption isotherms performed using the quartz crystal microbalance with dissipation, showed that the surface coverage increased with ELP sequence length. The longer polypeptides (ELP2 and ELP4) also displayed higher specific dissipation values indicating that they established films with greater structural flexibility and associated water content than the shorter polypeptide, ELP1. Additionally, the stability of the ELP coating was lower with the shorter polypeptides. This study highlights the different surface properties of the ELP coatings as well as the dynamic nature of the ELP adsorbed layer wherein the conformational state may be an important factor contributing to their blood response.
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Affiliation(s)
- Elizabeth M. Srokowski
- Department of Chemical Engineering and Applied Science, University of Toronto, Toronto, ON Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON Canada
| | - Kimberly A. Woodhouse
- Department of Chemical Engineering and Applied Science, University of Toronto, Toronto, ON Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON Canada
- Department of Chemical Engineering, Queen’s University, Kingston, ON Canada
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