1
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Pipis N, Stewart KA, Tabatabaei M, Williams LN, Allen JB. Exploring the Fibrous Nature of Single-Stranded DNA-Collagen Complexes: Nanostructural Observations and Physicochemical Insights. ACS OMEGA 2024; 9:32052-32058. [PMID: 39072094 PMCID: PMC11270544 DOI: 10.1021/acsomega.4c04104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/26/2024] [Accepted: 07/08/2024] [Indexed: 07/30/2024]
Abstract
Nucleic acid-collagen complexes (NACCs) are a self-assembled biomimetic fibrillary platform arising from the spontaneous complexation of single-stranded DNA (ssDNA) oligonucleotides and collagen. NACCs merge the extracellular matrix functionality of collagen with the tunable bioactivity of ssDNA as aptamers for broad biomedical applications. We hypothesize that NACCs offer a hierarchical architecture across multiple length scales that significantly varies compared to native collagen. We investigate this using atomic force microscopy and electron microscopy (transmission electron microscopy and cryogenic electron microscopy). Results demonstrate key topographical differences induced by adding ssDNA oligonucleotides to collagen type I. NACCs form a dense network of intertwined collagen fiber bundles in the microscale and nanoscale while retaining their characteristic D-band periodicities (∼67 nm). Additionally, our exploration of thermodynamic parameters governing the interaction indicates an entropically favorable NACC formation driven by ssDNA. Thermal analysis demonstrates the preservation of collagen's triple helical domains and a more stabilized polypeptide structure at higher temperatures than native collagen. These findings offer important insights into our understanding of the ssDNA-induced complexation of collagen toward the further establishment of structure-property relationships in NACCs and their future development into practical biomaterials. They also provide pathways for manipulating and enhancing collagenous matrices' properties without requiring complex chemical modifications or fabrication procedures.
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Affiliation(s)
- Nikolaos Pipis
- J.
Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Kevin A. Stewart
- George
& Josephine Butler Polymer Research Laboratory, Department of
Chemistry, Center for Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Mohammad Tabatabaei
- J.
Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Lakiesha N. Williams
- J.
Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Josephine B. Allen
- J.
Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
- Department
of Materials Science & Engineering, University of Florida, Gainesville, Florida 32611, United States
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2
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Garcia-Sacristan C, Gisbert VG, Klein K, Šarić A, Garcia R. In Operando Imaging Electrostatic-Driven Disassembly and Reassembly of Collagen Nanostructures. ACS NANO 2024; 18:18485-18492. [PMID: 38958189 PMCID: PMC11256892 DOI: 10.1021/acsnano.4c03839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 07/04/2024]
Abstract
Collagen is the most abundant protein in tissue scaffolds in live organisms. Collagen can self-assemble in vitro, which has led to a number of biotechnological and biomedical applications. To understand the dominant factors that participate in the formation of collagen nanostructures, here we study in real time and with nanoscale resolution the disassembly and reassembly of collagens. We implement a high-speed force microscope, which provides in situ high spatiotemporal resolution images of collagen nanostructures under changing pH conditions. The disassembly and reassembly are dominated by the electrostatic interactions among amino-acid residues of different molecules. Acidic conditions favor disassembly by neutralizing negatively charged residues. The process sets a net repulsive force between collagen molecules. A neutral pH favors the presence of negative and positively charged residues along the collagen molecules, which promotes their electrostatic attraction. Molecular dynamics simulations reproduce the experimental behavior and validate the electrostatic-based model of the disassembly and reassembly processes.
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Affiliation(s)
- Clara Garcia-Sacristan
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
| | - Victor G. Gisbert
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
| | - Kevin Klein
- Institute
of Science and Technology Austria, Klosterneuburg 3400, Austria
- Department
of Physics and Astronomy, University College
London, London WC1E 6BT, United Kingdom
| | - Anđela Šarić
- Institute
of Science and Technology Austria, Klosterneuburg 3400, Austria
| | - Ricardo Garcia
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
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3
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Arvelo DM, Garcia-Sacristan C, Chacón E, Tarazona P, Garcia R. Interfacial water on collagen nanoribbons by 3D AFM. J Chem Phys 2024; 160:164714. [PMID: 38656444 DOI: 10.1063/5.0205611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024] Open
Abstract
Collagen is the most abundant structural protein in mammals. Type I collagen in its fibril form has a characteristic pattern structure that alternates two regions called gap and overlap. The structure and properties of collagens are highly dependent on the water and mineral content of the environment. Here, we apply 3D AFM to characterize at angstrom-scale resolution the interfacial water structure of collagen nanoribbons. For a neutral tip, the interfacial water structure is characterized by the oscillation of the water particle density distribution with a value of 0.3 nm (hydration layers). The interfacial structure does not depend on the collagen region. For a negatively charged tip, the interfacial structure might depend on the collagen region. Hydration layers are observed in overlap regions, while in gap regions, the interfacial solvent structure is dominated by electrostatic interactions. These interactions generate interlayer distances of 0.2 nm.
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Affiliation(s)
- Diana M Arvelo
- Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain
| | | | - Enrique Chacón
- Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain
| | - Pedro Tarazona
- Departamento de Física Teórica de la Materia Condensada, IFIMAC Condensed Matter Physics Center, Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - Ricardo Garcia
- Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain
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4
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Meli V, Rowley AT, Veerasubramanian PK, Heedy SE, Liu WF, Wang SW. Modulation of Stiffness-Dependent Macrophage Inflammatory Responses by Collagen Deposition. ACS Biomater Sci Eng 2024; 10:2212-2223. [PMID: 38467019 PMCID: PMC11005009 DOI: 10.1021/acsbiomaterials.3c01892] [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: 12/15/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/13/2024]
Abstract
Macrophages are innate immune cells that interact with complex extracellular matrix environments, which have varied stiffness, composition, and structure, and such interactions can lead to the modulation of cellular activity. Collagen is often used in the culture of immune cells, but the effects of substrate functionalization conditions are not typically considered. Here, we show that the solvent system used to attach collagen onto a hydrogel surface affects its surface distribution and organization, and this can modulate the responses of macrophages subsequently cultured on these surfaces in terms of their inflammatory activation and expression of adhesion and mechanosensitive molecules. Collagen was solubilized in either acetic acid (Col-AA) or N-(2-hydroxyethyl)piperazine-N'-ethanesulfonic acid (HEPES) (Col-HEP) solutions and conjugated onto soft and stiff polyacrylamide (PA) hydrogel surfaces. Bone marrow-derived macrophages cultured under standard conditions (pH 7.4) on the Col-HEP-derived surfaces exhibited stiffness-dependent inflammatory activation; in contrast, the macrophages cultured on Col-AA-derived surfaces expressed high levels of inflammatory cytokines and genes, irrespective of the hydrogel stiffness. Among the collagen receptors that were examined, leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) was the most highly expressed, and knockdown of the Lair-1 gene enhanced the secretion of inflammatory cytokines. We found that the collagen distribution was more homogeneous on Col-AA surfaces but formed aggregates on Col-HEP surfaces. The macrophages cultured on Col-AA PA hydrogels were more evenly spread, expressed higher levels of vinculin, and exerted higher traction forces compared to those of cells on Col-HEP. These macrophages on Col-AA also had higher nuclear-to-cytoplasmic ratios of yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), key molecules that control inflammation and sense substrate stiffness. Our results highlight that seemingly slight variations in substrate deposition for immunobiology studies can alter critical immune responses, and this is important to elucidate in the broader context of immunomodulatory biomaterial design.
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Affiliation(s)
- Vijaykumar
S. Meli
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- UCI
Edwards Lifesciences Foundation Cardiovascular Innovation and Research
Center, University of California Irvine, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Andrew T. Rowley
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Praveen K. Veerasubramanian
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- UCI
Edwards Lifesciences Foundation Cardiovascular Innovation and Research
Center, University of California Irvine, Irvine, California 92697, United States
| | - Sara E. Heedy
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Wendy F. Liu
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- UCI
Edwards Lifesciences Foundation Cardiovascular Innovation and Research
Center, University of California Irvine, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
- Department
of Molecular Biology and Biochemistry, University
of California Irvine, Irvine, California 92697, United States
- Institute
for Immunology, University of California
Irvine, Irvine, California 92697, United States
| | - Szu-Wen Wang
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
- Institute
for Immunology, University of California
Irvine, Irvine, California 92697, United States
- Chao Family
Comprehensive Cancer Center, University
of California Irvine, Irvine, California 92697, United States
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5
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Roy C, Chowdhury D, Sanfui MDH, Roy JSD, Mitra M, Dutta A, Chattopadhyay PK, Singha NR. Solid waste collagen-associated fabrication of magnetic hematite nanoparticle@collagen nanobiocomposite for emission-adsorption of dyes. Int J Biol Macromol 2023; 242:124774. [PMID: 37196727 DOI: 10.1016/j.ijbiomac.2023.124774] [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: 01/05/2023] [Revised: 04/20/2023] [Accepted: 05/03/2023] [Indexed: 05/19/2023]
Abstract
The strategic utilization of hazardous particulate waste in eliminating environmental pollution is an important research hotspot. Herein, abundantly available hazardous solid collagenic waste of leather industry is converted into stable hybrid nanobiocomposite (HNP@SWDC) comprising magnetic hematite nanoparticles (HNP) and solid waste derived collagen (SWDC) via co-precipitation method. The structural, spectroscopic, surface, thermal, and magnetic properties; fluorescence quenching; dye selectivity; and adsorption are explored via microstructural analyzes of HNP@SWDC and dye adsorbed-HNP@SWDC using 1H nuclear magnetic resonance, Raman, ultraviolet-visible, Fourier-transform infrared (FTIR), X-ray photoelectron, and fluorescence spectroscopies; thermogravimetry; field-emission scanning electron microscopy; and vibrating-sample magnetometry (VSM). The intimate interaction of SWDC with HNP and elevated magnetic properties of HNP@SWDC are apprehended via amide-imidol tautomerism associated nonconventional hydrogen bondings, disappearance of goethite specific -OH def. in HNP@SWDC, and VSM. The as-fabricated reusable HNP@SWDC is employed for removing methylene blue (MB) and rhodamine B (RhB). Chemisorption of RhB/MB in HNP@SWDC via ionic, electrostatic, and hydrogen bonding interactions alongside dimerization of dyes are realized by ultraviolet-visible, FTIR, and fluorescence studies; pseudosecond order fitting; and activation energies. The adsorption capacity = 46.98-56.14/22.89-27.57 mg g-1 for RhB/MB is noted using 0.01 g HNP@SWDC within 5-20 ppm dyes and 288-318 K.
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Affiliation(s)
- Chandan Roy
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India; Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Deepak Chowdhury
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - M D Hussain Sanfui
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Joy Sankar Deb Roy
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Madhushree Mitra
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Arnab Dutta
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Pijush Kanti Chattopadhyay
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India
| | - Nayan Ranjan Singha
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata 700106, West Bengal, India.
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6
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Rajkumar DS, Murugan G, Padmanaban R. Unraveling the interaction of bisphenol A with collagen and its effect on conformational and thermal stability. Biophys Chem 2023; 298:107026. [PMID: 37182236 DOI: 10.1016/j.bpc.2023.107026] [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: 01/27/2023] [Revised: 04/22/2023] [Accepted: 04/22/2023] [Indexed: 05/16/2023]
Abstract
Evidence suggests the association of bisphenol A (BPA) with increased collagen (COL) expression in the development of fibrosis. Ultraviolet and fluorescence spectra on collagen-BPA interaction showed that 100 ng/ml of BPA initiated loosening of protein backbone through unfolding with exposure of tyrosine residues resulting in an intermediate "Molten Globule" state, which later aggregated with 1 μg/ml of BPA indicated with an apparent red-shift. Conformational changes with CD and ATR-FTIR showed disappearance of negative band with broadening and shifting of peptide carbonyl groups. Light scattering findings with TEM images presented initial dissolution followed by unordered thick fibrillar bundles with 30 μg/ml BPA. The complex was pH sensitive, with calorimetric thermogram revealing increased thermal stability requiring 83°C to denature. Hydrogen bonds of 2.8 Å with hydrophobic interactions of BPA in all grooves of collagen molecule with same pattern and binding energy (-4.1 to -3.9 kcal/mol) confirmed the intensity of aggregate formation via in-silico docking.
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Affiliation(s)
- Divya Sangeetha Rajkumar
- Immunodynamics & Interface Laboratory, Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Chennai, India
| | - Gopinath Murugan
- Immunodynamics & Interface Laboratory, Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Chennai, India
| | - Rajashree Padmanaban
- Immunodynamics & Interface Laboratory, Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Chennai, India.
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7
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Physical Chemistry Study of Collagen-Based Multilayer Films. Gels 2023; 9:gels9030192. [PMID: 36975641 PMCID: PMC10048292 DOI: 10.3390/gels9030192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/17/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
The surface properties of a biomaterial play an important role in cell behavior, e.g., recolonization, proliferation, and migration. Collagen is known to favor wound healing. In this study, collagen (COL)-based layer-by-layer (LbL) films were built using different macromolecules as a partner, i.e., tannic acid (TA), a natural polyphenol known to establish hydrogen bonds with protein, heparin (HEP), an anionic polysaccharide, and poly(sodium 4-styrene sulfonate) (PSS), an anionic synthetic polyelectrolyte. To cover the whole surface of the substrate with a minimal number of deposition steps, several parameters of the film buildup were optimized, such as the pH value of the solutions, the dipping time, and the salt (sodium chloride) concentration. The morphology of the films was characterized by atomic force microscopy. Built at an acidic pH, the stability of COL-based LbL films was studied when in contact with a physiological medium as well as the TA release from COL/TA films. In contrast to COL/PSS and COL/HEP LbL films, COL/TA films showed a good proliferation of human fibroblasts. These results validate the choice of TA and COL as components of LbL films for biomedical coatings.
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8
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Collagen-Based Biomimetic Systems to Study the Biophysical Tumour Microenvironment. Cancers (Basel) 2022; 14:cancers14235939. [PMID: 36497421 PMCID: PMC9739814 DOI: 10.3390/cancers14235939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/22/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022] Open
Abstract
The extracellular matrix (ECM) is a pericellular network of proteins and other molecules that provides mechanical support to organs and tissues. ECM biophysical properties such as topography, elasticity and porosity strongly influence cell proliferation, differentiation and migration. The cell's perception of the biophysical microenvironment (mechanosensing) leads to altered gene expression or contractility status (mechanotransduction). Mechanosensing and mechanotransduction have profound implications in both tissue homeostasis and cancer. Many solid tumours are surrounded by a dense and aberrant ECM that disturbs normal cell functions and makes certain areas of the tumour inaccessible to therapeutic drugs. Understanding the cell-ECM interplay may therefore lead to novel and more effective therapies. Controllable and reproducible cell culturing systems mimicking the ECM enable detailed investigation of mechanosensing and mechanotransduction pathways. Here, we discuss ECM biomimetic systems. Mainly focusing on collagen, we compare and contrast structural and molecular complexity as well as biophysical properties of simple 2D substrates, 3D fibrillar collagen gels, cell-derived matrices and complex decellularized organs. Finally, we emphasize how the integration of advanced methodologies and computational methods with collagen-based biomimetics will improve the design of novel therapies aimed at targeting the biophysical and mechanical features of the tumour ECM to increase therapy efficacy.
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9
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Zalieckas J, Mondragon IR, Pobedinskas P, Kristoffersen AS, Mohamed-Ahmed S, Gjerde C, Høl PJ, Hallan G, Furnes ON, Cimpan MR, Haenen K, Holst B, Greve MM. Polycrystalline Diamond Coating on Orthopedic Implants: Realization and Role of Surface Topology and Chemistry in Adsorption of Proteins and Cell Proliferation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44933-44946. [PMID: 36135965 PMCID: PMC9542704 DOI: 10.1021/acsami.2c10121] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Polycrystalline diamond has the potential to improve the osseointegration of orthopedic implants compared to conventional materials such as titanium. However, despite the excellent biocompatibility and superior mechanical properties, the major challenge of using diamond for implants, such as those used for hip arthroplasty, is the limitation of microwave plasma chemical vapor deposition (CVD) techniques to synthesize diamond on complex-shaped objects. Here, for the first time, we demonstrate diamond growth on titanium acetabular shells using the surface wave plasma CVD method. Polycrystalline diamond coatings were synthesized at low temperatures (∼400 °C) on three types of acetabular shells with different surface structures and porosities. We achieved the growth of diamond on highly porous surfaces designed to mimic the structure of the trabecular bone and improve osseointegration. Biocompatibility was investigated on nanocrystalline diamond (NCD) and ultrananocrystalline diamond (UNCD) coatings terminated either with hydrogen or oxygen. To understand the role of diamond surface topology and chemistry in the attachment and proliferation of mammalian cells, we investigated the adsorption of extracellular matrix proteins and monitored the metabolic activity of fibroblasts, osteoblasts, and bone-marrow-derived mesenchymal stem cells (MSCs). The interaction of bovine serum albumin and type I collagen with the diamond surfaces was investigated by confocal fluorescence lifetime imaging microscopy (FLIM). We found that the proliferation of osteogenic cells was better on hydrogen-terminated UNCD than on the oxygen-terminated counterpart. These findings correlated with the behavior of collagen on diamond substrates observed by FLIM. Hydrogen-terminated UNCD provided better adhesion and proliferation of osteogenic cells, compared to titanium, while the growth of fibroblasts was poorest on hydrogen-terminated NCD and MSCs behaved similarly on all tested surfaces. These results open new opportunities for application of diamond coatings on orthopedic implants to further improve bone fixation and osseointegration.
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Affiliation(s)
- Justas Zalieckas
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
| | - Ivan R. Mondragon
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Paulius Pobedinskas
- Institute
for Materials Research (IMO), Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium
- IMOMEC,
Interuniversity MicroElectronics Center (IMEC) vzw, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Arne S. Kristoffersen
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
| | - Samih Mohamed-Ahmed
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Cecilie Gjerde
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Paul J. Høl
- Department
of Orthopaedic Surgery, Haukeland University
Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Department
of Clinical Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
| | - Geir Hallan
- Department
of Orthopaedic Surgery, Haukeland University
Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Department
of Clinical Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
| | - Ove N. Furnes
- Department
of Orthopaedic Surgery, Haukeland University
Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Department
of Clinical Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
| | - Mihaela Roxana Cimpan
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Ken Haenen
- Institute
for Materials Research (IMO), Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium
- IMOMEC,
Interuniversity MicroElectronics Center (IMEC) vzw, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Bodil Holst
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
| | - Martin M. Greve
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
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10
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Casanellas I, Samitier J, Lagunas A. Recent advances in engineering nanotopographic substrates for cell studies. Front Bioeng Biotechnol 2022; 10:1002967. [PMID: 36147534 PMCID: PMC9486185 DOI: 10.3389/fbioe.2022.1002967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
Cells sense their environment through the cell membrane receptors. Interaction with extracellular ligands induces receptor clustering at the nanoscale, assembly of the signaling complexes in the cytosol and activation of downstream signaling pathways, regulating cell response. Nanoclusters of receptors can be further organized hierarchically in the cell membrane at the meso- and micro-levels to exert different biological functions. To study and guide cell response, cell culture substrates have been engineered with features that can interact with the cells at different scales, eliciting controlled cell responses. In particular, nanoscale features of 1–100 nm in size allow direct interaction between the material and single cell receptors and their nanoclusters. Since the first “contact guidance” experiments on parallel microstructures, many other studies followed with increasing feature resolution and biological complexity. Here we present an overview of the advances in the field summarizing the biological scenario, substrate fabrication techniques and applications, highlighting the most recent developments.
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Affiliation(s)
- Ignasi Casanellas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronics and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronics and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Anna Lagunas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
- *Correspondence: Anna Lagunas,
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11
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Tran PL, Kim JH, Jung YH, Lee DC, Choi JU, Le DN, Nam JW, Shrestha M, Kim JY, Pham TT, Jeong J. Prolongation of graft survival via layer-by-layer assembly of collagen and immunosuppressive particles on pancreatic islets. Biomaterials 2022; 290:121804. [DOI: 10.1016/j.biomaterials.2022.121804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/18/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022]
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12
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Casanellas I, Lagunas A, Vida Y, Pérez-Inestrosa E, Rodríguez-Pereira C, Magalhaes J, Andrades JA, Becerra J, Samitier J. Nanoscale ligand density modulates gap junction intercellular communication of cell condensates during chondrogenesis. Nanomedicine (Lond) 2022; 17:775-791. [PMID: 35642556 DOI: 10.2217/nnm-2021-0399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To unveil the influence of cell-matrix adhesions in the establishment of gap junction intercellular communication (GJIC) during cell condensation in chondrogenesis. Materials & methods: Previously developed nanopatterns of the cell adhesive ligand arginine-glycine-aspartic acid were used as cell culture substrates to control cell adhesion at the nanoscale. In vitro chondrogenesis of mesenchymal stem cells was conducted on the nanopatterns. Cohesion and GJIC were evaluated in cell condensates. Results: Mechanical stability and GJIC are enhanced by a nanopattern configuration in which 90% of the surface area presents adhesion sites separated less than 70 nm, thus providing an onset for cell signaling. Conclusion: Cell-matrix adhesions regulate GJIC of mesenchymal cell condensates during in vitro chondrogenesis from a threshold configuration at the nanoscale.
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Affiliation(s)
- Ignasi Casanellas
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science &Technology (BIST). c/Baldiri Reixac, 10-12, Barcelona, 08028, Spain.,Department of Electronics & Biomedical Engineering, University of Barcelona (UB). c/Martí i Franquès, 1, 08028, Barcelona, Spain.,Biomedical Research Networking Center in Bioengineering,Biomaterials & Nanomedicine (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid, 28029, Spain
| | - Anna Lagunas
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science &Technology (BIST). c/Baldiri Reixac, 10-12, Barcelona, 08028, Spain.,Biomedical Research Networking Center in Bioengineering,Biomaterials & Nanomedicine (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid, 28029, Spain
| | - Yolanda Vida
- Universidad de Málaga-IBIMA, Dpto. Química Orgánica. Campus de Teatinos s/n, Málaga, 29071, Spain.,Centro Andaluz de Nanomedicina y Biotecnología-BIONAND. Parque Tecnológico de Andalucía, c/Severo Ochoa 35, C,ampanillas, Málaga, 29590, Spain
| | - Ezequiel Pérez-Inestrosa
- Universidad de Málaga-IBIMA, Dpto. Química Orgánica. Campus de Teatinos s/n, Málaga, 29071, Spain.,Centro Andaluz de Nanomedicina y Biotecnología-BIONAND. Parque Tecnológico de Andalucía, c/Severo Ochoa 35, C,ampanillas, Málaga, 29590, Spain
| | - Cristina Rodríguez-Pereira
- Unidad de Medicina Regenerativa, Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC). c/Xubias de Arriba, 84, A Coruña, 15006, Spain
| | - Joana Magalhaes
- Biomedical Research Networking Center in Bioengineering,Biomaterials & Nanomedicine (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid, 28029, Spain.,Unidad de Medicina Regenerativa, Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC). c/Xubias de Arriba, 84, A Coruña, 15006, Spain
| | - José A Andrades
- Biomedical Research Networking Center in Bioengineering,Biomaterials & Nanomedicine (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid, 28029, Spain.,Centro Andaluz de Nanomedicina y Biotecnología-BIONAND. Parque Tecnológico de Andalucía, c/Severo Ochoa 35, C,ampanillas, Málaga, 29590, Spain.,Department of Cell Biology, Genetics & Physiology, Universidad de Málaga (UMA), Instituto de Investigación Biomédica de Málaga (IBIMA). Av. Cervantes, 2, Málaga, 29071, Spain
| | - José Becerra
- Biomedical Research Networking Center in Bioengineering,Biomaterials & Nanomedicine (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid, 28029, Spain.,Centro Andaluz de Nanomedicina y Biotecnología-BIONAND. Parque Tecnológico de Andalucía, c/Severo Ochoa 35, C,ampanillas, Málaga, 29590, Spain.,Department of Cell Biology, Genetics & Physiology, Universidad de Málaga (UMA), Instituto de Investigación Biomédica de Málaga (IBIMA). Av. Cervantes, 2, Málaga, 29071, Spain
| | - Josep Samitier
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science &Technology (BIST). c/Baldiri Reixac, 10-12, Barcelona, 08028, Spain.,Department of Electronics & Biomedical Engineering, University of Barcelona (UB). c/Martí i Franquès, 1, 08028, Barcelona, Spain.,Biomedical Research Networking Center in Bioengineering,Biomaterials & Nanomedicine (CIBER-BBN). Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid, 28029, Spain
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13
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Synthesis and Assembly of Recombinant Collagen. Methods Mol Biol 2021. [PMID: 34472057 DOI: 10.1007/978-1-0716-1574-4_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Collagen represents the major structural protein of the extracellular matrix. The desired mechanical and biological performances of collagen that have led to its broad applications as a building block in a great deal of fields, such as tissue engineering, drug delivery, and nanodevices. The most direct way to obtain collagen is to separate and extract it from biological tissues, but these top-down methods are usually cumbersome, and the structure of collagen is usually destroyed during the preparation process. Moreover, there is currently no effective method to separate some scarce collagens (such as collagen from human beings). Alternatively, bottom-up assembly methods have been developed to obtain collagen assembly or their analogs. The collagen used in this type of method is usually obtained by genetic recombination. A distinct advantage of gene recombination is that the sequence structure of collagen can be directly customized, so its assembly mode can be regulated at the primary structure level, and then a collagen assembly with a predesigned configuration can be achieved. Additionally, insights into the assembly behavior of these specific structures provide a rational approach to understand the pathogenic mechanisms of collagen-associated diseases, such as diabetes. In this chapter, Type I collagen is used as an example to introduce the key methods and procedures of collagen recombination, and on this basis, we will introduce in detail the experimental protocols for further assembly of these recombinant proteins to specific structures, such as fibril.
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14
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Gleaton J, Curtis RW, Chmielewski J. Formation of Microcages from a Collagen Mimetic Peptide via Metal-Ligand Interactions. Molecules 2021; 26:molecules26164888. [PMID: 34443477 PMCID: PMC8401520 DOI: 10.3390/molecules26164888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 11/16/2022] Open
Abstract
Here, the hierarchical assembly of a collagen mimetic peptide (CMP) displaying four bipyridine moieties is described. The CMP was capable of forming triple helices followed by self-assembly into disks and domes. Treatment of these disks and domes with metal ions such as Fe(II), Cu(II), Zn(II), Co(II), and Ru(III) triggered the formation of microcages, and micron-sized cup-like structures. Mechanistic studies suggest that the formation of the microcages proceeds from the disks and domes in a metal-dependent fashion. Fluorescently-labeled dextrans were encapsulated within the cages and displayed a time-dependent release using thermal conditions.
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15
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Ahmed A, Joshi IM, Mansouri M, Ahamed NNN, Hsu MC, Gaborski TR, Abhyankar VV. Engineering fiber anisotropy within natural collagen hydrogels. Am J Physiol Cell Physiol 2021; 320:C1112-C1124. [PMID: 33852366 PMCID: PMC8285641 DOI: 10.1152/ajpcell.00036.2021] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 12/14/2022]
Abstract
It is well known that biophysical properties of the extracellular matrix (ECM), including stiffness, porosity, composition, and fiber alignment (anisotropy), play a crucial role in controlling cell behavior in vivo. Type I collagen (collagen I) is a ubiquitous structural component in the ECM and has become a popular hydrogel material that can be tuned to replicate the mechanical properties found in vivo. In this review article, we describe popular methods to create 2-D and 3-D collagen I hydrogels with anisotropic fiber architectures. We focus on methods that can be readily translated from engineering and materials science laboratories to the life-science community with the overall goal of helping to increase the physiological relevance of cell culture assays.
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Affiliation(s)
- Adeel Ahmed
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Indranil M Joshi
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York
| | - Mehran Mansouri
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Nuzhet N N Ahamed
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Meng-Chun Hsu
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Thomas R Gaborski
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York
| | - Vinay V Abhyankar
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York
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16
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Riker KD, Daly ML, Papanikolas MJ, Jian T, Klawa SJ, Shin Sahin JYS, Liu D, Singh A, Miller AG, Freeman R. A Programmable Toolkit to Dynamically Signal Cells Using Peptide Strand Displacement. ACS APPLIED MATERIALS & INTERFACES 2021; 13:21018-21029. [PMID: 33938725 DOI: 10.1021/acsami.1c03370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The native extracellular matrix communicates and interacts with cells by dynamically displaying signals to control their behavior. Mimicking this dynamic environment in vitro is essential in order to unravel how cell-matrix interactions guide cell fate. Here, we present a synthetic platform for the temporal display of cell-adhesive signals using coiled-coil peptides. By designing an integrin-engaging coiled-coil pair to have a toehold (unpaired domain), we were able to use a peptide strand displacement reaction to remove the cell cue from the surface. This allowed us to test how the user-defined display of RGDS ligands at variable duration and periodicity of ligand exposure influence cell spreading degree and kinetics. Transient display of αVβ3-selective ligands instructed fibroblast cells to reversibly spread and contract in response to changes in ligand exposure over multiple cycles, exhibiting a universal kinetic response. Also, cells that were triggered to spread and contract repeatedly exhibited greater enrichment of integrins in focal adhesions versus cells cultured on persistent RGDS-displaying surfaces. This dynamic platform will allow us to uncover the molecular code by which cells sense and respond to changes in their environment and will provide insights into ways to program cellular behavior.
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Affiliation(s)
- Kyle D Riker
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Margaret L Daly
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Micah J Papanikolas
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Tengyue Jian
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Stephen J Klawa
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jacqueline Yalin S Shin Sahin
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Dingyuan Liu
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Anamika Singh
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - A Griffin Miller
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Ronit Freeman
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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17
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Gisbert V, Benaglia S, Uhlig MR, Proksch R, Garcia R. High-Speed Nanomechanical Mapping of the Early Stages of Collagen Growth by Bimodal Force Microscopy. ACS NANO 2021; 15:1850-1857. [PMID: 33412008 PMCID: PMC8477367 DOI: 10.1021/acsnano.0c10159] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/05/2021] [Indexed: 05/07/2023]
Abstract
High-speed atomic force microscopy (AFM) enabled the imaging of protein interactions with millisecond time resolutions (10 fps). However, the acquisition of nanomechanical maps of proteins is about 100 times slower. Here, we developed a high-speed bimodal AFM that provided high-spatial resolution maps of the elastic modulus, the loss tangent, and the topography at imaging rates of 5 fps. The microscope was applied to identify the initial stages of the self-assembly of the collagen structures. By following the changes in the physical properties, we identified four stages, nucleation and growth of collagen precursors, formation of tropocollagen molecules, assembly of tropocollagens into microfibrils, and alignment of microfibrils to generate microribbons. Some emerging collagen structures never matured, and after an existence of several seconds, they disappeared into the solution. The elastic modulus of a microfibril (∼4 MPa) implied very small stiffness (∼3 × 10-6 N/m). Those values amplified the amplitude of the collagen thermal fluctuations on the mica plane, which facilitated microribbon build-up.
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Affiliation(s)
- Victor
G. Gisbert
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
| | - Simone Benaglia
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
| | - Manuel R. Uhlig
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
| | - Roger Proksch
- Asylum
Research an Oxford Instruments Company, Santa Barbara, California 93117, United States
| | - Ricardo Garcia
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
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18
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Thankachan SN, Ilamaran M, Ayyadurai N, Shanmugam G. Insights into the effect of artificial sweeteners on the structure, stability, and fibrillation of type I collagen. Int J Biol Macromol 2020; 164:748-758. [PMID: 32693139 DOI: 10.1016/j.ijbiomac.2020.07.152] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 01/05/2023]
Abstract
Artificial sweeteners (AS) are widely used as sugar substitutes because natural sweetener (sugar) leads to a number of health issues, including diabetes, obesity, and tooth decay. Since natural sugar (sucrose), diabetes and skin are highly interlinked, and also sucrose is known to inhibit the fibrillation of collagen, the major protein of the skin, a study on the impact of AS on collagen is important and essential. Herein, we have studied the influence of commonly used AS such as Sucralose (SUC), Aspartame (APM), and Saccharin (SAC) on the structure, stability, and fibrillation of collagen using various spectroscopic methods. The circular dichroism and turbidity results suggest that the AS does not disrupt the triple helix structure and also the fibrillar property of collagen, respectively. The fibrillar morphology was sustained, although there was a trivial difference in the entanglement of fibrils in the presence of SAC, compared to native collagen fibrils. The thermal stability of collagen is maintained in the presence of AS. Fluorescence and STD-NMR results indicate that the interaction between AS and collagen was weak, which supports the intact structure, stability, and fibrillation property of collagen. The current study thus suggests that the chosen AS does not influence collagen properties.
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Affiliation(s)
- Soumya N Thankachan
- Organic & Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India
| | - Meganathan Ilamaran
- Biochemistry and Biotechnology Division, CSIR-CLRI, Adyar, Chennai 600020, India
| | - Niraikulam Ayyadurai
- Biochemistry and Biotechnology Division, CSIR-CLRI, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CLRI Campus, Chennai 600020, India
| | - Ganesh Shanmugam
- Organic & Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CLRI Campus, Chennai 600020, India.
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19
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González-Masís J, Cubero-Sesin JM, Guerrero S, González-Camacho S, Corrales-Ureña YR, Redondo-Gómez C, Vega-Baudrit JR, Gonzalez-Paz RJ. Self-assembly study of type I collagen extracted from male Wistar Hannover rat tail tendons. Biomater Res 2020; 24:19. [PMID: 33292808 PMCID: PMC7681980 DOI: 10.1186/s40824-020-00197-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/21/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Collagen, the most abundant protein in the animal kingdom, represents a promising biomaterial for regenerative medicine applications due to its structural diversity and self-assembling complexity. Despite collagen's widely known structural and functional features, the thermodynamics behind its fibrillogenic self-assembling process is still to be fully understood. In this work we report on a series of spectroscopic, mechanical, morphological and thermodynamic characterizations of high purity type I collagen (with a D-pattern of 65 nm) extracted from Wistar Hannover rat tail. Our herein reported results can be of help to elucidate differences in self-assembly states of proteins using ITC to improve the design of energy responsive and dynamic materials for applications in tissue engineering and regenerative medicine. METHODS Herein we report the systematic study on the self-assembling fibrillogenesis mechanism of type I collagen, we provide morphological and thermodynamic evidence associated to different self-assembly events using ITC titrations. We provide thorough characterization of the effect of pH, effect of salts and protein conformation on self-assembled collagen samples via several complementary biophysical techniques, including circular dichroism (CD), Fourier Transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), atomic force microscopy (AFM), scanning electron microscopy (SEM), dynamic mechanical thermal analysis (DMTA) and thermogravimetric analysis (TGA). RESULTS Emphasis was made on the use of isothermal titration calorimetry (ITC) for the thermodynamic monitoring of fibrillogenesis stages of the protein. An overall self-assembly enthalpy value of 3.27 ± 0.85 J/mol was found. Different stages of the self-assembly mechanism were identified, initial stages take place at pH values lower than the protein isoelectric point (pI), however, higher energy release events were recorded at collagen's pI. Denatured collagen employed as a control exhibited higher energy absorption at its pI, suggesting different energy exchange mechanisms as a consequence of different aggregation routes.
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Affiliation(s)
- Jeimmy González-Masís
- Escuela de Ciencia e Ingeniería de los Materiales, Instituto Tecnológico de Costa Rica, Cartago, 159-7050, Costa Rica
| | - Jorge M Cubero-Sesin
- Escuela de Ciencia e Ingeniería de los Materiales, Instituto Tecnológico de Costa Rica, Cartago, 159-7050, Costa Rica
| | - Simón Guerrero
- Instituto de Investigación Interdisciplinar en Ciencias Biomedicas SEK (I3CBSEK), Facultad de Ciencias de la Salud, Universidad SEK, Fernando Manterola 0789, 7500000, Santiago, Chile
| | - Sara González-Camacho
- Biological Assays Laboratory (LEBi), Universidad de Costa Rica, San Pedro de Montes de Oca, San José, Costa Rica
| | - Yendry Regina Corrales-Ureña
- National Nanotechnology Laboratory, National Center for High Technology (LANOTEC-CeNAT-CONARE), 1174-1200, Pavas, San José, Costa Rica
| | - Carlos Redondo-Gómez
- National Nanotechnology Laboratory, National Center for High Technology (LANOTEC-CeNAT-CONARE), 1174-1200, Pavas, San José, Costa Rica
| | - José Roberto Vega-Baudrit
- National Nanotechnology Laboratory, National Center for High Technology (LANOTEC-CeNAT-CONARE), 1174-1200, Pavas, San José, Costa Rica
- National University of Costa Rica, UNA, 86-3000, San José, Heredia, Costa Rica
| | - Rodolfo J Gonzalez-Paz
- National Nanotechnology Laboratory, National Center for High Technology (LANOTEC-CeNAT-CONARE), 1174-1200, Pavas, San José, Costa Rica.
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20
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Siddique A, Pause I, Narayan S, Kruse L, Stark RW. Endothelialization of PDMS-based microfluidic devices under high shear stress conditions. Colloids Surf B Biointerfaces 2020; 197:111394. [PMID: 33075662 DOI: 10.1016/j.colsurfb.2020.111394] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/02/2020] [Accepted: 09/28/2020] [Indexed: 10/23/2022]
Abstract
Microfluidic systems made out of polydimethylsiloxane (PDMS) offer a platform to mimic vascular flow conditions in model systems at well-defined shear stresses. However, extracellular matrix (ECM) proteins that are physisorbed on the PDMS are not reliably attached under high shear stress conditions, which makes long-term experiments difficult. To overcome this limitation, we functionalized PDMS surfaces with 3-aminopropyltriethoxysilane (APTES) by using different surface activation methods to develop a stable linkage between the PDMS surface and collagen, which served as a model ECM protein. The stability of the protein coating inside the microfluidic devices was evaluated in perfusion experiments with phosphate-buffered saline (PBS) at 10-40 dynes/cm2 wall shear stress. To assess the stability of cell adhesion, endothelial cells were grown in a multi-shear device over a shear stress range of 20-150 dynes/cm2. Cells on the APTES-mediated collagen coating were stable over the entire shear stress range in PBS (pH 9) for 48 h. The results suggest that at high pH values, the electrostatic interaction between APTES-coated surfaces and collagen molecules offer a very promising tool to modify PDMS-based microfluidic devices for long-term endothelialization under high shear stress conditions.
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Affiliation(s)
- Asma Siddique
- Physics of Surfaces, Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 16, 64287, Darmstadt, Germany
| | - Isabelle Pause
- Physics of Surfaces, Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 16, 64287, Darmstadt, Germany
| | - Suman Narayan
- Physics of Surfaces, Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 16, 64287, Darmstadt, Germany
| | - Larissa Kruse
- Macromolecular Chemistry and Paper Chemistry, Department of Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, 64287, Darmstadt, Germany
| | - Robert W Stark
- Physics of Surfaces, Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 16, 64287, Darmstadt, Germany.
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21
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Shi L, Tian H, Wang Y, Hao G, Chen J, Weng W. Effect of pH on properties of golden pompano skin collagen-based fibril gels by self-assembly in vitro. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4801-4807. [PMID: 32478438 DOI: 10.1002/jsfa.10539] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/21/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Application of fish skin collagen has received increasing attention due to mammalian derived diseases and religious limitations. Collagen fibril gel could be formed in vitro through the self-assembly process. The present study investigated the effect of pH on the self-assembly in vitro of acid-solubilized collagen (ASC) from golden pompano skin by determining the turbidity, rheological viscoelasticity, network structure, gel strength, and thermal stability of collagen fibril gel. RESULTS The isoelectric point of ASC was pH 5.27. The turbidity-time and rheological viscoelasticity results indicate that the collagen self-assembly rate in vitro at pH 7.0 was the slowest. The rate was accelerated by increasing or decreasing the pH. Scanning electron microscopy images show that the fibril diameters of the collagen fibril gels and the collagenous fibril number in the collagen fiber increased with the pH. The gel strength of the collagen fibril gel prepared at pH 5.0 was 22.06 g and increased up to 220.46 g when pH increased to 8.0. No obvious peaks were observed in the differential scanning calorimetry curves of the collagen fibril gels prepared at pH 5.0, whereas high endothermic peak temperature (Tm ) and enthalpy change (ΔH) were found in the collagen fibril gels prepared at pH 6.0-8.0. CONCLUSION It is concluded that the physical properties of ASC fibril gels can be improved by increasing the fibril diameter controlled by pH. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Linfan Shi
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Haohao Tian
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Yanxia Wang
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Gengxin Hao
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Jun Chen
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Wuyin Weng
- College of Food and Biological Engineering, Jimei University, Xiamen, China
- Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, China
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22
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McCluskey AR, Hung KSW, Marzec B, Sindt JO, Sommerdijk NAJM, Camp PJ, Nudelman F. Disordered Filaments Mediate the Fibrillogenesis of Type I Collagen in Solution. Biomacromolecules 2020; 21:3631-3643. [DOI: 10.1021/acs.biomac.0c00667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew R. McCluskey
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Kennes S. W. Hung
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Bartosz Marzec
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Julien O. Sindt
- EPCC, University of Edinburgh, Bayes Centre, 47 Potterrow, Edinburgh EH8 9BT, U.K
| | - Nico A. J. M. Sommerdijk
- Department of Biochemistry, Radboud Institute of Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein, 6525 GA Nijmegen, The Netherlands
| | - Philip J. Camp
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Fabio Nudelman
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
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The Janus Role of Adhesion in Chondrogenesis. Int J Mol Sci 2020; 21:ijms21155269. [PMID: 32722300 PMCID: PMC7432906 DOI: 10.3390/ijms21155269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 12/20/2022] Open
Abstract
Tackling the first stages of the chondrogenic commitment is essential to drive chondrogenic differentiation to healthy hyaline cartilage and minimize hypertrophy. During chondrogenesis, the extracellular matrix continuously evolves, adapting to the tissue adhesive requirements at each stage. Here, we take advantage of previously developed nanopatterns, in which local surface adhesiveness can be precisely tuned, to investigate its effects on prechondrogenic condensation. Fluorescence live cell imaging, immunostaining, confocal microscopy and PCR analysis are used to follow the condensation process on the nanopatterns. Cell tracking parameters, condensate morphology, cell-cell interactions, mechanotransduction and chondrogenic commitment are evaluated in response to local surface adhesiveness. Results show that only condensates on the nanopatterns of high local surface adhesiveness are stable in culture and able to enter the chondrogenic pathway, thus highlighting the importance of controlling cell-substrate adhesion in the tissue engineering strategies for cartilage repair.
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Sayed M, Hiraishi N, Matin K, Abdou A, Burrow MF, Tagami J. Effect of silver-containing agents on the ultra-structural morphology of dentinal collagen. Dent Mater 2020; 36:936-944. [DOI: 10.1016/j.dental.2020.04.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/15/2020] [Accepted: 04/30/2020] [Indexed: 01/04/2023]
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25
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Zhao M, Anouz R, Groth T. Effect of microenvironment on adhesion and differentiation of murine C3H10T1/2 cells cultured on multilayers containing collagen I and glycosaminoglycans. J Tissue Eng 2020; 11:2041731420940560. [PMID: 32728412 PMCID: PMC7366406 DOI: 10.1177/2041731420940560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/18/2020] [Indexed: 12/14/2022] Open
Abstract
Polyelectrolyte multilayer coating is a promising tool to control cellular behavior. Murine C3H10T1/2 embryonic fibroblasts share many features with mesenchymal stem cells, which are good candidates for use in regenerative medicine. However, the interactions of C3H10T1/2 cells with polyelectrolyte multilayers have not been studied yet. Hence, the effect of molecular composition of biomimetic multilayers, by pairing collagen I (Col I) with either hyaluronic acid or chondroitin sulfate, based primarily on ion pairing and on additional intrinsic cross-linking was studied regarding the adhesion and differentiation of C3H10T1/2 cells. It was found that the adhesion and osteogenic differentiation of C3H10T1/2 cells were more pronounced on chondroitin sulfate-based multilayers when cultured in the absence of osteogenic supplements, which corresponded to the significant larger amounts of Col I fibrils in these multilayers. By contrast, the staining of cartilage-specific matrixes was more intensive when cells were cultured on hyaluronic acid-based multilayers. Moreover, it is of note that a limited osteogenic and chondrogenic differentiation were detected when cells were cultured in osteogenic or chondrogenic medium. Specifically, cells were largely differentiated into an adipogenic lineage when cultured in osteogenic medium or 100 ng mL-1 bone morphogenic protein 2, and it was more evident on the oxidized glycosaminoglycans-based multilayers, which corresponded also to the higher stiffness of cross-linked multilayers. Overall, polyelectrolyte multilayer composition and stiffness can be used to direct cell-matrix interactions, and hence the fate of C3H10T1/2 cells. However, these cells have a higher adipogenic potential than osteogenic or chondrogenic potential.
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Affiliation(s)
- Mingyan Zhao
- Stem Cell Research and Cellular Therapy
Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Reema Anouz
- Department Biomedical Materials,
Institute of Pharmacy, Martin Luther University Halle Wittenberg, Halle (Saale),
Germany
| | - Thomas Groth
- Department Biomedical Materials,
Institute of Pharmacy, Martin Luther University Halle Wittenberg, Halle (Saale),
Germany
- Laboratory of Biomedical
Nanotechnologies, Institute of Bionic Technologies and Engineering, I.M. Sechenov
First Moscow State University, Moscow, Russian Federation
- Interdisciplinary Center of Materials
Research, Martin Luther University Halle Wittenberg, Halle (Saale), Germany
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26
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Fuentes-Corona CG, Licea-Rodriguez J, Younger R, Rangel-Rojo R, Potma EO, Rocha-Mendoza I. Second harmonic generation signal from type I collagen fibers grown in vitro. BIOMEDICAL OPTICS EXPRESS 2019; 10:6449-6461. [PMID: 31853410 PMCID: PMC6913412 DOI: 10.1364/boe.10.006449] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/11/2019] [Accepted: 11/16/2019] [Indexed: 05/02/2023]
Abstract
We present a study of the optical second-order nonlinearity of type I collagen fibers grown in vitro via second harmonic generation (SHG) experiments and analyze the observed polarization-resolved SHG signal using previously reported SHG analytical expressions obtained for anisotropic tissue. Our results indicate that the effective second-order nonlinearity measured in the grown fibers is one order of magnitude lower than that of native collagen fibers. This is attributed to the formation of loose and dispersive fibrillar networks of thinner collagen fibrils that constitute the reassembled collagen fibers. This is confirmed by scanning electronic microscopy (SEM) imaging and the polarization dependence of the SHG signal. The measured values of the anisotropy parameter ρ of the reassembled collagen fibers are found to be similar to that obtained for native fibers on the relevant sub-µm scale.
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Affiliation(s)
- Cindy Grethel Fuentes-Corona
- Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, 22860 Ensenada B.C., Mexico
| | - Jacob Licea-Rodriguez
- Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, 22860 Ensenada B.C., Mexico
- Cátedras CONACYT-Centro de Investigación Científica y de Educación Superior de Ensenada, Carr Tijuana-Ensenada 3918, C.I.C.E.S.E., 22860 Ensenada, B.C., Mexico
| | - Rebecca Younger
- Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - Raul Rangel-Rojo
- Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, 22860 Ensenada B.C., Mexico
| | - Eric O Potma
- Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - Israel Rocha-Mendoza
- Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, 22860 Ensenada B.C., Mexico
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27
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Han P, Frith JE, Gomez GA, Yap AS, O'Neill GM, Cooper-White JJ. Five Piconewtons: The Difference between Osteogenic and Adipogenic Fate Choice in Human Mesenchymal Stem Cells. ACS NANO 2019; 13:11129-11143. [PMID: 31580055 DOI: 10.1021/acsnano.9b03914] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The ability of mesenchymal stem cells to sense nanoscale variations in extracellular matrix (ECM) compositions in their local microenvironment is crucial to their survival and their fate; however, the underlying molecular mechanisms defining how such fates are temporally modulated remain poorly understood. In this work, we have utilized self-assembled block copolymer surfaces to present nanodomains of an adhesive peptide found in many ECM proteins at different lateral spacings (from 30 to 60 nm) and studied the temporal response (2 h to 14 days) of human mesenchymal stem cells (hMSCs) using a panel of real-time localization and activity biosensors. Our findings revealed that within the first 4 to 24 h postadhesion and spreading, hMSCs on smaller nanodomain spacings recruit more activated FAK and Src proteins to produce larger, longer-lived, and increased numbers of focal adhesions (FAs). The adhesions formed on smaller nanospacings rapidly recruit higher amounts of nonmuscle myosin IIA and vinculin and experience tension forces (by >5 pN/FA) significantly higher than those observed on larger nanodomain spacings. The transmission of higher levels of tension into the cytoskeleton at short times was accompanied by higher Rac1, cytosolic β-catenin, and nuclear localization of YAP/TAZ and RUNX2, which together biased the commitment of hMSCs to an osteogenic fate. This investigation provides mechanistic insights to confirm that smaller lateral spacings of adhesive nanodomains alter hMSC mechanosensing and biases mechanotransduction at short times via differential coupling of FAK/Src/Rac1/myosin IIA/YAP/TAZ signaling pathways to support longer-term changes in stem cell differentiation and state.
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Affiliation(s)
- Pingping Han
- Tissue Engineering and Microfluidics Laboratory (TE&M), Australian Institute for Bioengineering and Nanotechnology (AIBN) , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
- The UQ Centre in Stem Cell Ageing and Regenerative Engineering (StemCARE), Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
| | - Jessica E Frith
- Tissue Engineering and Microfluidics Laboratory (TE&M), Australian Institute for Bioengineering and Nanotechnology (AIBN) , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
- Materials Science and Engineering , Monash University , Melbourne , VIC 3168 , Australia
| | - Guillermo A Gomez
- Institute of Molecular Biosciences , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
- Centre for Cancer Biology , South Australia Pathology and The University of South Australia , Adelaide , SA 5001 , Australia
| | - Alpha S Yap
- Institute of Molecular Biosciences , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
| | - Geraldine M O'Neill
- Kids Research Institute , Children's Hospital at Westmead , Sydney , NSW 2006 , Australia
- Discipline of Child and Adolescent Health , University of Sydney , Sydney , NSW 2006 , Australia
| | - Justin J Cooper-White
- Tissue Engineering and Microfluidics Laboratory (TE&M), Australian Institute for Bioengineering and Nanotechnology (AIBN) , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
- The UQ Centre in Stem Cell Ageing and Regenerative Engineering (StemCARE), Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Manufacturing , Melbourne , Clayton, VIC 3168 , Australia
- School of Chemical Engineering , The University of Queensland , Brisbane , St. Lucia, QLD 4067 , Australia
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28
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Eryilmaz E, Teizer W, Hwang W. Macromolecular and nanoscale investigation of intermolecular interactions driving the self-assembly of collagen. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/ab1ee6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Zhao Z, Li F, Guo Q, Zhou Y, Miao Y, Li Y, Wang Z, Jiang R, Dong JF, Liu X, Zhang J, Zhang Y. Structural and Functional Plasticity of Collagen Fibrils. DNA Cell Biol 2019; 38:367-373. [PMID: 30724579 DOI: 10.1089/dna.2018.4494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Collagen is a major component of the subendothelial matrix and participates in bleeding arrest by activating and aggregating platelets at the site of vascular injury. The most common type I collagen exists in both soluble and fibrillar forms, but structural exchangeability between the two forms is currently unknown. Using atomic force microscopy, we show that type I collagen switches between soluble and fibrillar forms in a pH-dependent and ion-independent manner. Fibrillar collagen is rope like with characteristic "D-bands." The collagen fibrils can be disrupted with 0.1 M acetic acid and will reform when the pH is adjusted to 7.4. This structural plasticity leads to drastically different activities, with fibrillar collagen being significantly more active for platelets under static and flow conditions. More important, by probing with noncontact hopping probe ion-conductance microscopy, we find that platelets adherent to fibrillar collagen present primarily as high-density bubble shapes that have undergone rapid microvesiculation.
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Affiliation(s)
- Zilong Zhao
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Fanjian Li
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Qi Guo
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuan Zhou
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuyang Miao
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Ying Li
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Zengguang Wang
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Rongcai Jiang
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing-Fei Dong
- 2 BloodWorks Research Institute and the Division of Hematology, Department of Medicine, School of Medicine, University of Washington, Seattle, Washington
| | - Xiao Liu
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,3 Nanomedicine Laboratory, Chinese National Academy of Nanotechnology and Engineering, Tianjin, China
| | - Jianning Zhang
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yanjun Zhang
- 1 Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,3 Nanomedicine Laboratory, Chinese National Academy of Nanotechnology and Engineering, Tianjin, China.,4 Department of Medicine, Imperial College London, London, United Kingdom
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30
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Wang J, Boddupalli A, Koelbl J, Nam DH, Ge X, Bratlie KM, Schneider IC. Degradation and Remodeling of Epitaxially Grown Collagen Fibrils. Cell Mol Bioeng 2019; 12:69-84. [PMID: 31007771 PMCID: PMC6472930 DOI: 10.1007/s12195-018-0547-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 08/07/2018] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION— The extracellular matrix (ECM) in the tumor microenvironment contains high densities of collagen that are highly aligned, resulting in directional migration called contact guidance that facilitates efficient migration out of the tumor. Cancer cells can remodel the ECM through traction force controlled by myosin contractility or proteolytic activity controlled by matrix metalloproteinase (MMP) activity, leading to either enhanced or diminished contact guidance. METHODS— Recently, we have leveraged the ability of mica to epitaxially grow aligned collagen fibrils in order to assess contact guidance. In this article, we probe the mechanisms of remodeling of aligned collagen fibrils on mica by breast cancer cells. RESULTS— We show that cells that contact guide with high fidelity (MDA-MB-231 cells) exert more force on the underlying collagen fibrils than do cells that contact guide with low fidelity (MTLn3 cells). These high traction cells (MDA-MB-231 cells) remodel collagen fibrils over hours, pulling so hard that the collagen fibrils detach from the surface, effectively delaminating the entire contact guidance cue. Myosin or MMP inhibition decreases this effect. Interestingly, blocking MMP appears to increase the alignment of cells on these substrates, potentially allowing the alignment through myosin contractility to be uninhibited. Finally, amplification or dampening of contact guidance with respect to a particular collagen fibril organization is seen under different conditions. CONCLUSIONS— Both myosin II contractility and MMP activity allow MDA-MB-231 cells to remodel and eventually destroy epitaxially grown aligned collagen fibrils.
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Affiliation(s)
- Juan Wang
- Present Address: Department of Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50011-2230 USA
| | - Anuraag Boddupalli
- Present Address: Department of Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50011-2230 USA
| | - Joseph Koelbl
- Present Address: Department of Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50011-2230 USA
| | - Dong Hyun Nam
- Department of Chemical Engineering, University of California Riverside, Riverside, CA USA
| | - Xin Ge
- Department of Chemical Engineering, University of California Riverside, Riverside, CA USA
| | - Kaitlin M. Bratlie
- Present Address: Department of Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50011-2230 USA
- Department of Materials Science and Engineering, Iowa State University, Ames, IA USA
| | - Ian C. Schneider
- Present Address: Department of Chemical and Biological Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50011-2230 USA
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA USA
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31
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Chen J, Li M, Yi R, Bai K, Wang G, Tan R, Sun S, Xu N. Electrodialysis Extraction of Pufferfish Skin ( Takifugu flavidus): A Promising Source of Collagen. Mar Drugs 2019; 17:E25. [PMID: 30621157 PMCID: PMC6356396 DOI: 10.3390/md17010025] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/12/2018] [Accepted: 12/27/2018] [Indexed: 01/12/2023] Open
Abstract
Collagen is widely used in drugs, biomaterials, foods, and cosmetics. By-products of the fishing industry are rich sources of collagen, which can be used as an alternative to collagen traditionally harvested from land mammals. However, commercial applications of fish-based collagen are limited by the low efficiency, low productivity, and low sustainability of the extraction process. This study applied a new technique (electrodialysis) for the extraction of Takifugu flavidus skin collagen. We found electrodialysis to have better economic and environmental outcomes than traditional dialysis as it significantly reduced the purification time and wastewater (~95%) while maintaining high extraction yield (67.3 ± 1.3 g/100 g dry weight, p < 0.05). SDS-PAGE, amino acid composition analysis, and spectrophotometric characterization indicated that electrodialysis treatment retained the physicochemical properties of T. flavidus collagen. Heavy metals and tetrodotoxin analyses indicated the safety of T. flavidus collagen. Notably, the collagen had similar thermal stability to calf skin collagen, with the maximum transition temperature and denaturation temperature of 41.8 ± 0.35 and 28.4 ± 2.5 °C, respectively. All evidence suggests that electrodialysis is a promising technique for extracting collagen in the fishing industry and that T. flavidus skin collagen could serve as an alternative source of collagen to meet the increasing demand from consumers.
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Affiliation(s)
- Junde Chen
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
| | - Min Li
- Plants for Human Health Institutes, North Carolina State University, Kannapolis, NC 28081, USA.
| | - Ruizao Yi
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
| | - Kaikai Bai
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
| | - Guangyu Wang
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
| | - Ran Tan
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
| | - Shanshan Sun
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
| | - Nuohua Xu
- Marine Biological Resource Comprehensive Utilization Engineering Research Center of the State Oceanic Administration, The Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, China.
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33
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Yao S, Xu Y, Shao C, Nudelman F, Sommerdijk NAJM, Tang R. A Biomimetic Model for Mineralization of Type-I Collagen Fibrils. Methods Mol Biol 2019; 1944:39-54. [PMID: 30840234 DOI: 10.1007/978-1-4939-9095-5_4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The bone and dentin mainly consist of type-I collagen fibrils mineralized by hydroxyapatite (HAP) nanocrystals. In vitro biomimetic models based on self-assembled collagen fibrils have been widely used in studying the mineralization mechanism of type-I collagen. In this chapter, the protocol we used to build a biomimetic model for the mechanistic study of type-I collagen mineralization is described. Type-I collagen extracted from rat tail tendon or horse tendon is self-assembled into fibrils and mineralized by HAP in vitro. The mineralization process is monitored by cryoTEM in combination with two-dimensional (2D) and three-dimensional (3D) stochastic optical reconstruction microscopy (STORM), which enables in situ and high-resolution visualization of the process.
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Affiliation(s)
- Shasha Yao
- Department of Chemistry, Center for Biomaterials and Biopathways, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yifei Xu
- Laboratory of Materials and Interface Chemistry, Department of Chemical Engineering and Chemistry, Center for Multiscale Electron Microscopy, Eindhoven University of Technology, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Changyu Shao
- Department of Chemistry, Center for Biomaterials and Biopathways, Zhejiang University, Hangzhou, Zhejiang, China
| | - Fabio Nudelman
- School of Chemistry, University of Edinburgh, Edinburgh, UK
| | - Nico A J M Sommerdijk
- Laboratory of Materials and Interface Chemistry, Department of Chemical Engineering and Chemistry, Center for Multiscale Electron Microscopy, Eindhoven University of Technology, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Ruikang Tang
- Department of Chemistry, Center for Biomaterials and Biopathways, Zhejiang University, Hangzhou, Zhejiang, China.
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34
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Xia Y, Cho S, Vashisth M, Ivanovska IL, Dingal PCDP, Discher DE. Manipulating the mechanics of extracellular matrix to study effects on the nucleus and its structure. Methods 2018; 157:3-14. [PMID: 30593865 DOI: 10.1016/j.ymeth.2018.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 12/29/2022] Open
Abstract
Tissues such as brain, muscle, and bone differ greatly not only in their biological functions but also in their mechanical properties. Brain is far softer than muscle while bone is the stiffest tissue. Stiffness of extracellular microenvironments affects fundamental cell biological processes such as polarization and DNA replication, which affect nuclear size, shape, and levels of nuclear proteins such as the lamins that modulate gene expression. Reductionist approaches have helped dissect the effects of matrix mechanics away from confounding biochemical signals. Here, we summarize materials and methods for synthesizing and characterizing soft and stiff synthetic hydrogels widely used for mechanobiological studies. Such gels are also easily made to mimic the mechanical heterogeneity of fibrotic tissues. We further describe a nano-thin collagen fiber system, which enables control of anisotropy in addition to stiffness. With the different systems, we illustrate the effects of matrix mechanics on nuclear size, shape, and proteins including the lamins.
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Affiliation(s)
- Yuntao Xia
- Molecular & Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA; Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sangkyun Cho
- Molecular & Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA; Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Manasvita Vashisth
- Molecular & Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA; Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Irena L Ivanovska
- Molecular & Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA; Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - P C Dave P Dingal
- Molecular & Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA; Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Dennis E Discher
- Molecular & Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA; Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Wang J, Koelbl J, Boddupalli A, Yao Z, Bratlie KM, Schneider IC. Transfer of assembled collagen fibrils to flexible substrates for mechanically tunable contact guidance cues. Integr Biol (Camb) 2018; 10:705-718. [PMID: 30320857 PMCID: PMC6267882 DOI: 10.1039/c8ib00127h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Contact guidance or bidirectional migration along aligned fibers modulates many physiological and pathological processes such as wound healing and cancer invasion. Aligned 2D collagen fibrils epitaxially grown on mica substrates replicate many features of contact guidance seen in aligned 3D collagen fiber networks. However, these 2D collagen self-assembled substrates are difficult to image through, do not have known or tunable mechanical properties and cells degrade and mechanically detach collagen fibrils from the surface, leading to an inability to assess contact guidance over long times. Here, we describe the transfer of aligned collagen fibrils from mica substrates to three different functionalized target substrates: glass, polydimethylsiloxane (PDMS) and polyacrylamide (PA). Aligned collagen fibrils can be efficiently transferred to all three substrates. This transfer resulted in substrates that were to varying degrees resistant to cell-mediated collagen fibril deformation that resulted in detachment of the collagen fibril field, allowing for contact guidance to be observed over longer time periods. On these transferred substrates, cell speed is lowest on softer contact guidance cues for both MDA-MB-231 and MTLn3 cells. Intermediate stiffness resulted in the fastest migration. MTLn3 cell directionality was low on soft contact guidance cues, whereas MDA-MB-231 cell directionality marginally increased. It appears that the stiffness of the contact guidance cue regulates contact guidance differently between cell types. The development of this collagen fibril transfer method allows for the attachment of aligned collagen fibrils on substrates, particularly flexible substrates, that do not normally promote aligned collagen fibril growth, increasing the utility of this collagen self-assembly system for the fundamental examination of mechanical regulation of contact guidance.
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Affiliation(s)
- Juan Wang
- Department of Chemical and Biological Engineering, Iowa State University, USA.
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Rezaei N, Lyons A, Forde NR. Environmentally Controlled Curvature of Single Collagen Proteins. Biophys J 2018; 115:1457-1469. [PMID: 30269884 PMCID: PMC6260212 DOI: 10.1016/j.bpj.2018.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/02/2018] [Accepted: 09/04/2018] [Indexed: 12/01/2022] Open
Abstract
The predominant structural protein in vertebrates is collagen, which plays a key role in extracellular matrix and connective tissue mechanics. Despite its prevalence and physical importance in biology, the mechanical properties of molecular collagen are far from established. The flexibility of its triple helix is unresolved, with descriptions from different experimental techniques ranging from flexible to semirigid. Furthermore, it is unknown how collagen type (homo- versus heterotrimeric) and source (tissue derived versus recombinant) influence flexibility. Using SmarTrace, a chain-tracing algorithm we devised, we performed statistical analysis of collagen conformations collected with atomic force microscopy to determine the protein's mechanical properties. Our results show that types I, II, and III collagens-the key fibrillar varieties-exhibit similar molecular flexibilities. However, collagen conformations are strongly modulated by salt, transitioning from compact to extended as KCl concentration increases in both neutral and acidic pH. Although analysis with a standard worm-like chain model suggests that the persistence length of collagen can attain a wide range of values within the literature range, closer inspection reveals that this modulation of collagen's conformational behavior is not due to changes in flexibility but rather arises from the induction of curvature (either intrinsic or induced by interactions with the mica surface). By modifying standard polymer theory to include innate curvature, we show that collagen behaves as an equilibrated curved worm-like chain in two dimensions. Analysis within the curved worm-like chain model shows that collagen's curvature depends strongly on pH and salt, whereas its persistence length does not. Thus, we find that triple-helical collagen is well described as semiflexible irrespective of source, type, pH, and salt environment. These results demonstrate that collagen is more flexible than its conventional description as a rigid rod, which may have implications for its cellular processing and secretion.
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Affiliation(s)
- Nagmeh Rezaei
- Department of Physics, Simon Fraser University, Burnaby, Canada
| | - Aaron Lyons
- Department of Physics, Simon Fraser University, Burnaby, Canada
| | - Nancy R Forde
- Department of Physics, Simon Fraser University, Burnaby, Canada.
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Ling S, Chen W, Fan Y, Zheng K, Jin K, Yu H, Buehler MJ, Kaplan DL. Biopolymer nanofibrils: structure, modeling, preparation, and applications. Prog Polym Sci 2018; 85:1-56. [PMID: 31915410 PMCID: PMC6948189 DOI: 10.1016/j.progpolymsci.2018.06.004] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biopolymer nanofibrils exhibit exceptional mechanical properties with a unique combination of strength and toughness, while also presenting biological functions that interact with the surrounding environment. These features of biopolymer nanofibrils profit from their hierarchical structures that spun angstrom to hundreds of nanometer scales. To maintain these unique structural features and to directly utilize these natural supramolecular assemblies, a variety of new methods have been developed to produce biopolymer nanofibrils. In particular, cellulose nanofibrils (CNFs), chitin nanofibrils (ChNFs), silk nanofibrils (SNFs) and collagen nanofibrils (CoNFs), as the four most abundant biopolymer nanofibrils on earth, have been the focus of research in recent years due to their renewable features, wide availability, low-cost, biocompatibility, and biodegradability. A series of top-down and bottom-up strategies have been accessed to exfoliate and regenerate these nanofibrils for versatile advanced applications. In this review, we first summarize the structures of biopolymer nanofibrils in nature and outline their related computational models with the aim of disclosing fundamental structure-property relationships in biological materials. Then, we discuss the underlying methods used for the preparation of CNFs, ChNFs, SNF and CoNFs, and discuss emerging applications for these biopolymer nanofibrils.
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Affiliation(s)
- Shengjie Ling
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Wenshuai Chen
- Key Laboratory of Bio-based Material Science & Technology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Yimin Fan
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Ke Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Kai Jin
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Haipeng Yu
- Key Laboratory of Bio-based Material Science & Technology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Markus J. Buehler
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
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Casanellas I, García-Lizarribar A, Lagunas A, Samitier J. Producing 3D Biomimetic Nanomaterials for Musculoskeletal System Regeneration. Front Bioeng Biotechnol 2018; 6:128. [PMID: 30294596 PMCID: PMC6159749 DOI: 10.3389/fbioe.2018.00128] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/29/2018] [Indexed: 12/21/2022] Open
Abstract
The human musculoskeletal system is comprised mainly of connective tissues such as cartilage, tendon, ligaments, skeletal muscle, and skeletal bone. These tissues support the structure of the body, hold and protect the organs, and are responsible of movement. Since it is subjected to continuous strain, the musculoskeletal system is prone to injury by excessive loading forces or aging, whereas currently available treatments are usually invasive and not always effective. Most of the musculoskeletal injuries require surgical intervention facing a limited post-surgery tissue regeneration, especially for widespread lesions. Therefore, many tissue engineering approaches have been developed tackling musculoskeletal tissue regeneration. Materials are designed to meet the chemical and mechanical requirements of the native tissue three-dimensional (3D) environment, thus facilitating implant integration while providing a good reabsorption rate. With biological systems operating at the nanoscale, nanoengineered materials have been developed to support and promote regeneration at the interprotein communication level. Such materials call for a great precision and architectural control in the production process fostering the development of new fabrication techniques. In this mini review, we would like to summarize the most recent advances in 3D nanoengineered biomaterials for musculoskeletal tissue regeneration, with especial emphasis on the different techniques used to produce them.
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Affiliation(s)
- Ignasi Casanellas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, Spain
- Department of Electronics and Biomedical Engineering, University of Barcelona, Barcelona, Spain
| | - Andrea García-Lizarribar
- Nanobioengineering Group, Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, Spain
- Department of Electronics and Biomedical Engineering, University of Barcelona, Barcelona, Spain
| | - Anna Lagunas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, Spain
- Networking Biomedical Research Center (CIBER), Madrid, Spain
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, Spain
- Department of Electronics and Biomedical Engineering, University of Barcelona, Barcelona, Spain
- Networking Biomedical Research Center (CIBER), Madrid, Spain
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Koçer G, Jonkheijm P. About Chemical Strategies to Fabricate Cell-Instructive Biointerfaces with Static and Dynamic Complexity. Adv Healthc Mater 2018; 7:e1701192. [PMID: 29717821 DOI: 10.1002/adhm.201701192] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 02/12/2018] [Indexed: 12/21/2022]
Abstract
Properly functioning cell-instructive biointerfaces are critical for healthy integration of biomedical devices in the body and serve as decisive tools for the advancement of our understanding of fundamental cell biological phenomena. Studies are reviewed that use covalent chemistries to fabricate cell-instructive biointerfaces. These types of biointerfaces typically result in a static presentation of predefined cell-instructive cues. Chemically defined, but dynamic cell-instructive biointerfaces introduce spatiotemporal control over cell-instructive cues and present another type of biointerface, which promises a more biomimetic way to guide cell behavior. Therefore, strategies that offer control over the lateral sorting of ligands, the availability and molecular structure of bioactive ligands, and strategies that offer the ability to induce physical, chemical and mechanical changes in situ are reviewed. Specific attention is paid to state-of-the-art studies on dynamic, cell-instructive 3D materials. Future work is expected to further deepen our understanding of molecular and cellular biological processes investigating cell-type specific responses and the translational steps toward targeted in vivo applications.
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Affiliation(s)
- Gülistan Koçer
- TechMed Centre and MESA Institute for Nanotechnology; University of Twente; 7500 AE Enschede The Netherlands
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Pascal Jonkheijm
- TechMed Centre and MESA Institute for Nanotechnology; University of Twente; 7500 AE Enschede The Netherlands
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
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Jiang C, Zurick K, Qin C, Bernards MT. Probing the influence of SIBLING proteins on collagen-I fibrillogenesis and denaturation. Connect Tissue Res 2018; 59:274-286. [PMID: 28910556 PMCID: PMC6112244 DOI: 10.1080/03008207.2017.1379514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Bone tissue is comprised of collagen, non-collagenous proteins, and hydroxyapatite and the SIBLING (small integrin binding, N-linked glycoprotein) family of proteins is the primary group of non-collagenous proteins. By replicating the native interactions between collagen and the SIBLING proteins at the interface of an implant, it is believed that a bone scaffold will more easily integrate with the surrounding tissue. In this work, bone sialoprotein, osteopontin (OPN), dentin sialoprotein (DSP), dentin phosphoprotein (DPP), C-terminal fragment of dentin matrix protein 1 (DMP1-C), and proteoglycan versions of DSP (DSP-PG) and DMP1 (DMP1-PG) were tested individually to determine their roles in collagen fibrillogenesis and the prevention of denaturation. It was shown that DSP and DPP slowed down fibrillogenesis, while other SIBLINGs had limited impact. In addition, the denaturation time was faster in the presence of DSP and OPN, indicating a negative impact. The role of calcium ions in these processes was also investigated. The presence of calcium ions sped up fibrillogenesis in all scenarios tested, but it had a negative impact by reducing the extent. Calcium also sped up the denaturation in most cases, with the exception of DMP1-C and DSP where the opposite was seen. Calcium had a similar effect on the proteoglycan variants in the fibrillogenesis process, but had no impact on the denaturation process in the presence of these two. It is believed that incorporating DMP1-C or DSP on the surface of a bone implant may improve the collagen interactions with the implant, thereby facilitating improved osteointegration.
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Affiliation(s)
- Chengyu Jiang
- Departments of Chemical Engineering and University of Missouri, Columbia, MO 65211
| | - Kevin Zurick
- Departments of Chemical Engineering and University of Missouri, Columbia, MO 65211
| | - Chunlin Qin
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246
| | - Matthew T. Bernards
- Departments of Chemical Engineering and University of Missouri, Columbia, MO 65211,Bioengineering University of Missouri, Columbia, MO 65211,Corresponding Author: Matthew T., Current Address: Chemical & Materials Engineering Department, University of Idaho, Bernards Moscow, ID 83844.
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Disintegration of collagen fibrils by Glucono-δ-lactone: An implied lead for disintegration of fibrosis. Int J Biol Macromol 2018; 107:175-185. [DOI: 10.1016/j.ijbiomac.2017.08.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/27/2017] [Accepted: 08/29/2017] [Indexed: 11/23/2022]
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Mukhey D, Phillips JB, Daniels JT, Kureshi AK. Controlling human corneal stromal stem cell contraction to mediate rapid cell and matrix organization of real architecture for 3-dimensional tissue equivalents. Acta Biomater 2018; 67:229-237. [PMID: 29208552 DOI: 10.1016/j.actbio.2017.11.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 11/07/2017] [Accepted: 11/28/2017] [Indexed: 12/13/2022]
Abstract
The architecture of the human corneal stroma consists of a highly organized extracellular matrix (ECM) interspersed with keratocytes. Their progenitor cells; corneal stromal stem cells (CSSC) are located at the periphery, in the limbal stroma. A highly organized corneal ECM is critical for effective transmission of light but this structure may be compromised during injury or disease, resulting in loss of vision. Re-creating normal organization in engineered tissue equivalents for transplantation often involves lengthy culture times that are inappropriate for clinical use or utilisation of synthetic substrates that bring complications such as corneal melting. CSSC have great therapeutic potential owing to their ability to reorganize a disorganized matrix, restoring transparency in scarred corneas. We examined CSSC contractile behavior to assess whether this property could be exploited to rapidly generate cell and ECM organization in Real Architecture For 3D Tissues (RAFT) tissue equivalents (TE) for transplantation. Free-floating collagen gels were characterized to assess contractile behavior of CSSC and establish optimum cell density and culture times. To mediate cell and collagen organization, tethered collagen gels seeded with CSSC were cultured and subsequently stabilized with the RAFT process. We demonstrated rapid creation of biomimetic RAFT TE with tunable structural properties. These displayed three distinct regions of varying degrees of cellular and collagen organization. Interestingly, increased organization coincided with a dramatic loss of PAX6 expression in CSSC, indicating rapid differentiation into keratocytes. The organized RAFT TE system could be a useful bioengineering tool to rapidly create an organized ECM while simultaneously controlling cell phenotype. STATEMENT OF SIGNIFICANCE For the first time, we have demonstrated that human CSSC exhibit the phenomenon of cellular self-alignment in tethered collagen gels. We found this mediated rapid co-alignment of collagen fibrils and thus subsequently exploited this property in vitro to improve the architecture of engineered RAFT tissue equivalents of the corneal stroma. Existing techniques are extremely lengthy and carry significant risk and cost for GMP manufacture. This rapid and tunable technique takes just 8 h of culture and is therefore ideal for clinical manufacture, creating biomimetic tissue equivalents with both cellular and ECM organization. Thus, cellular self-alignment can be a useful bioengineering tool for the development of organized tissue equivalents in a variety of applications.
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Gu W, Bai X, Ren K, Zhao X, Xia S, Zhang J, Qin Y, Lei R, Chen K, Chang YN, Zeng L, Li J, Xing G. Mono-fullerenols modulating cell stiffness by perturbing actin bundling. NANOSCALE 2018; 10:1750-1758. [PMID: 29308471 DOI: 10.1039/c7nr07231g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Understanding what modulates the cell stiffness is important given its potential application as a diagnostic and medical target. Here, we investigated why and how mono-fullerenols affect the cell stiffness. We confirmed the fullerenol-modulation of cell stiffness using atomic force microscopy (AFM) with sphere tips and ascertained that the particles reduce the cell polarity. The structures of b-actin and f-actin were evaluated by inverted fluorescence microscopy, synchrotron radiation small angle X-ray scattering (SAXS), transmission electron microscopy (TEM) and AFM. Statistical and quantitative analyses of the SAXS data of fullerenol-treated b-actin and f-actin reveal a transformation from large-size to small-size b-actin and simultaneously to f-actin. The slight increase in f-actin diameter in the treated group suggests that fullerenols attach to the actin surface. We verified the attachment using AFM and high-resolution probes. Collectively, our results suggest that fullerenols hamper the bundling of f-actin to form b-actin by adhering to the surface of f-actin, weakening the bundle-based cell stiffness.
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Affiliation(s)
- Weihong Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China.
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Casanellas I, Lagunas A, Tsintzou I, Vida Y, Collado D, Pérez-Inestrosa E, Rodríguez-Pereira C, Magalhaes J, Gorostiza P, Andrades JA, Becerra J, Samitier J. Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation. J Vis Exp 2018:56347. [PMID: 29443025 PMCID: PMC5908668 DOI: 10.3791/56347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cellular adhesion and differentiation is conditioned by the nanoscale disposition of the extracellular matrix (ECM) components, with local concentrations having a major effect. Here we present a method to obtain large-scale uneven nanopatterns of arginine-glycine-aspartic acid (RGD)-functionalized dendrimers that permit the nanoscale control of local RGD surface density. Nanopatterns are formed by surface adsorption of dendrimers from solutions at different initial concentrations and are characterized by water contact angle (CA), X-ray photoelectron spectroscopy (XPS), and scanning probe microscopy techniques such as scanning tunneling microscopy (STM) and atomic force microscopy (AFM). The local surface density of RGD is measured using AFM images by means of probability contour maps of minimum interparticle distances and then correlated with cell adhesion response and differentiation. The nanopatterning method presented here is a simple procedure that can be scaled up in a straightforward manner to large surface areas. It is thus fully compatible with cell culture protocols and can be applied to other ligands that exert concentration-dependent effects on cells.
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Affiliation(s)
- Ignasi Casanellas
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST); Department of Engineering Electronics, University of Barcelona (UB)
| | - Anna Lagunas
- Networking Biomedical Research Center (CIBER); Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST);
| | - Iro Tsintzou
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST)
| | - Yolanda Vida
- Instituto de Investigacin Biomédica de Málaga (IBIMA), Department of Organic Chemistry, Universidad de Málaga (UMA); Andalusian Centre for Nanomedicine and Biotechnology-BIONAND
| | - Daniel Collado
- Instituto de Investigacin Biomédica de Málaga (IBIMA), Department of Organic Chemistry, Universidad de Málaga (UMA); Andalusian Centre for Nanomedicine and Biotechnology-BIONAND
| | - Ezequiel Pérez-Inestrosa
- Instituto de Investigacin Biomédica de Málaga (IBIMA), Department of Organic Chemistry, Universidad de Málaga (UMA); Andalusian Centre for Nanomedicine and Biotechnology-BIONAND
| | - Cristina Rodríguez-Pereira
- Unidad de Bioingeniería Tisular y Terapia Celular (GBTTC-CHUAC), Grupo de Reumatolog ía, Instituto de Investigación Biomèdica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC)
| | - Joana Magalhaes
- Networking Biomedical Research Center (CIBER); Unidad de Bioingeniería Tisular y Terapia Celular (GBTTC-CHUAC), Grupo de Reumatolog ía, Instituto de Investigación Biomèdica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC)
| | - Pau Gorostiza
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST); Networking Biomedical Research Center (CIBER); Institució Catalana de Recerca i Estudis Avançats (ICREA)
| | - José A Andrades
- Instituto de Investigación Biomédica de Málaga (IBIMA), Department of Cell Biology, Genetics and Physiology, Universidad de Málaga (UMA); Networking Biomedical Research Center (CIBER)
| | - José Becerra
- Instituto de Investigación Biomédica de Málaga (IBIMA), Department of Cell Biology, Genetics and Physiology, Universidad de Málaga (UMA); Networking Biomedical Research Center (CIBER); Andalusian Centre for Nanomedicine and Biotechnology-BIONAND
| | - Josep Samitier
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST); Networking Biomedical Research Center (CIBER); Department of Engineering Electronics, University of Barcelona (UB)
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Kim YA, Tarahovsky YS, Gaidin SG, Yagolnik EA, Muzafarov EN. Flavonoids determine the rate of fibrillogenesis and structure of collagen type I fibrils in vitro. Int J Biol Macromol 2017. [DOI: 10.1016/j.ijbiomac.2017.06.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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46
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YANG DL, ZENG FX, SUN M, GU WH, LI L. Investigation on Properties of Collagen Nanowires Quasiepitaxially Grown on Mica Lattice Plane. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1016/s1872-2040(17)61003-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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47
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Wang J, Schneider IC. Myosin phosphorylation on stress fibers predicts contact guidance behavior across diverse breast cancer cells. Biomaterials 2017; 120:81-93. [PMID: 28039755 PMCID: PMC5291342 DOI: 10.1016/j.biomaterials.2016.11.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/22/2016] [Accepted: 11/24/2016] [Indexed: 11/24/2022]
Abstract
During cancer progression the extracellular matrix is remodeled, forming aligned collagen fibers that proceed radially from the tumor, resulting in invasion. We have recently shown that different invasive breast cancer cells respond to epitaxially grown, aligned collagen fibrils differently. This article develops insight into why these cells differ in their contact guidance fidelity. Small changes in contractility or adhesion dramatically alter directional persistence on aligned collagen fibrils, while migration speed remains constant. The directionality of highly contractile and adhesive MDA-MB-231 cells can be diminished by inhibiting Rho kinase or β1 integrin binding. Inversely, the directionality of less contractile and adhesive MTLn3 cells can be enhanced by activating contractility or integrins. Subtle, but quantifiable alterations in myosin II regulatory light chain phosphorylation on stress fibers explain the tuning of contact guidance fidelity, separate from migration per se indicating that the contractile and adhesive state of the cell in combination with collagen organization in the tumor microenvironment determine the efficiency of migration. Understanding how distinct cells respond to contact guidance cues will not only illuminate mechanisms for cancer invasion, but will also allow for the design of environments to separate specific subpopulations of cells from patient-derived tissues by leveraging differences in responses to directional migration cues.
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Affiliation(s)
- Juan Wang
- Department of Chemical and Biological Engineering, Iowa State University, USA
| | - Ian C Schneider
- Department of Chemical and Biological Engineering, Iowa State University, USA; Department of Genetics, Development and Cell Biology, Iowa State University, USA.
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48
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Observing Effects of Calcium/Magnesium Ions and pH Value on the Self-Assembly of Extracted Swine Tendon Collagen by Atomic Force Microscopy. J FOOD QUALITY 2017. [DOI: 10.1155/2017/9257060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Self-assembly of extracted collagen from swine trotter tendon under different conditions was firstly observed using atomic force microscopy; then the effects of collagen concentration, pH value, and metal ions to the topography of the collagen assembly were analyzed with the height images and section analysis data. Collagen assembly under 0.1 M, 0.2 M, 0.3 M CaCl2, and MgCl2 solutions in different pH values showed significant differences (P < 0.05) in the topographical properties including height, width, and roughness. With the concentration being increased, the width of collagen decreased significantly (P < 0.05). The width of collagen fibers was first increased significantly (P < 0.05) and then decreased with the increasing of pH. The collagen was assembled with network structure on the mica in solution with Ca2+ ions. However, it had shown uniformed fibrous structure with Mg2+ ions on the new cleaved mica sheet. In addition, the width of collagen fibrous was 31~58 nm in solution with Mg2+ but 21~50 nm in Ca2+ solution. The self-assembly collagen displayed various potential abilities to construct fibers or membrane on mica surfaces with Ca2+ ions and Mg2+ irons. Besides, the result of collagen self-assembly had shown more relations among solution pH value, metal ions, and collagen molecular concentration, which will provide useful information on the control of collagen self-assembly in tissue engineering and food packaging engineering.
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Kłosowski MM, Carzaniga R, Abellan P, Ramasse Q, McComb DW, Porter AE, Shefelbine SJ. Electron Microscopy Reveals Structural and Chemical Changes at the Nanometer Scale in the Osteogenesis Imperfecta Murine Pathology. ACS Biomater Sci Eng 2016; 3:2788-2797. [DOI: 10.1021/acsbiomaterials.6b00300] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Michał M. Kłosowski
- Department
of Materials and Engineering, Royal School of Mines, South Kensington
Campus, Imperial College London, London SW7 2AZ, U.K
| | - Raffaella Carzaniga
- Cancer
Research U.K., Francis Crick Institute, 44 Lincoln’s Inn Fields, London WC2A 3LY, U.K
| | - Patricia Abellan
- SuperSTEM Laboratory, SciTech Daresbury Campus, Keckwick Lane, Daresbury, Warrington WA4 4AD, U.K
| | - Quentin Ramasse
- SuperSTEM Laboratory, SciTech Daresbury Campus, Keckwick Lane, Daresbury, Warrington WA4 4AD, U.K
| | - David W. McComb
- Department
of Materials Science and Engineering, Center for Electron Microscopy
and Analysis, The Ohio State University, 1305 Kinnear Road, Columbus, Ohio 43212, United States
| | - Alexandra E. Porter
- Department
of Materials and Engineering, Royal School of Mines, South Kensington
Campus, Imperial College London, London SW7 2AZ, U.K
| | - Sandra J. Shefelbine
- Department
of Mechanical and Industrial Engineering, Northeastern University, 334 Snell Engineering Center, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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Zhao M, Altankov G, Grabiec U, Bennett M, Salmeron-Sanchez M, Dehghani F, Groth T. Molecular composition of GAG-collagen I multilayers affects remodeling of terminal layers and osteogenic differentiation of adipose-derived stem cells. Acta Biomater 2016; 41:86-99. [PMID: 27188244 DOI: 10.1016/j.actbio.2016.05.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/03/2016] [Accepted: 05/13/2016] [Indexed: 12/15/2022]
Abstract
UNLABELLED The effect of molecular composition of multilayers, by pairing type I collagen (Col I) with either hyaluronic acid (HA) or chondroitin sulfate (CS) was studied regarding the osteogenic differentiation of adhering human adipose-derived stem cells (hADSCs). Polyelectrolyte multilayer (PEM) formation was based primarily on ion pairing and on additional intrinsic cross-linking through imine bond formation with Col I replacing native by oxidized HA (oHA) or CS (oCS). Significant amounts of Col I fibrils were found on both native and oxidized CS-based PEMs, resulting in higher water contact angles and surface potential under physiological condition, while much less organized Col I was detected in either HA-based multilayers, which were more hydrophilic and negatively charged. An important finding was that hADSCs remodeled Col I at the terminal layers of PEMs by mechanical reorganization and pericellular proteolytic degradation, being more pronounced on CS-based PEMs. This was in accordance with the higher quantity of Col I deposition in this system, accompanied by more cell spreading, focal adhesions (FA) formation and significant α2β1 integrin recruitment compared to HA-based PEMs. Both CS-based PEMs caused also an increased fibronectin (FN) secretion and cell growth. Furthermore, significant calcium phosphate deposition, enhanced ALP, Col I and Runx2 expression were observed in hADSCs on CS-based PEMs, particularly on oCS-containing one. Overall, multilayer composition can be used to direct cell-matrix interactions, and hence stem cell fates showing for the first time that PEMs made of biogenic polyelectrolytes undergo significant remodeling of terminal protein layers, which seems to enable cells to form a more adequate extracellular matrix-like environment. STATEMENT OF SIGNIFICANCE Natural polymer derived polyelectrolyte multilayers (PEMs) have been recently applied to adjust biomaterials to meet specific tissue demands. However, the effect of molecular composition of multilayers on both surface properties and cellular response, especially the fate of human adipose derived stem cells (hADSCs) upon osteogenic differentiation has not been studied extensively, yet. In addition, no studies exist that investigate a potential cell-dependent remodeling of PEMs made of extracellular matrix (ECM) components like collagens and glycosaminoglycans (GAGs). Furthermore, there is no knowledge whether the ability of cells to remodel PEM components may provide an added value regarding cell growth and differentiation. Finally, it has not been explored yet, how intrinsic cross-linking of ECM derived polyelectrolytes that improve the stability of PEMs will affect the differentiation potential of hADSCs. The current work aims to address these questions and found that the type of GAG has a strong effect on properties of multilayers and osteogenic differentiation of hADSCs. Additionally, we also show for the first time that PEMs made of biogenic polyelectrolytes undergo significant remodeling of terminal layers as completely new finding, which allows cells to form an ECM-like environment supporting differentiation upon osteogenic lineage. The finding of this work may open new avenues of application of PEM systems made by layer by layer (LbL) technique in tissue engineering and regenerative medicine.
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