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Ramaraju H, Garcia-Gomez E, McAtee AM, Verga AS, Hollister SJ. Shape memory cycle conditions impact human bone marrow stromal cell binding to RGD- and YIGSR-conjugated poly (glycerol dodecanedioate). Acta Biomater 2024; 186:246-259. [PMID: 39111679 DOI: 10.1016/j.actbio.2024.07.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 07/21/2024] [Accepted: 07/30/2024] [Indexed: 08/16/2024]
Abstract
Bioresorbable shape memory polymers (SMP) are an emerging class of polymers that can help address several challenges associated with minimally invasive surgery by providing a solution for structural tissue repair. Like most synthetic polymer networks, SMPs require additional biorelevance and modification for biomedical applications. Methodologies used to incorporate bioactive ligands must preserve SMP thermomechanics and ensure biofunctionality following in vivo delivery. We have previously described the development of a novel thermoresponsive bioresorbable SMP, poly (glycerol dodecanedioate) (PGD). In this study, cell-adhesive peptide sequences RGD and YIGSR were conjugated with PGD. We investigated 1) the impact of conjugated peptides on the fixity (Rf), recovery (Rr), and recovery rate (dRr/dT), 2) the impact of conjugated peptides on cell binding, and 3) the impact of the shape memory cycle (Tprog) on conjugated peptide functionality towards binding human bone marrow stromal cells (BMSC). Peptide conjugation conditions impact fixity but not the recovery or recovery rate (p < 0.01). Peptide-conjugated substrates increased cell attachment and proliferation compared with controls (p < 0.001). Using complementary integrin binding cell-adhesive peptides increased proliferation compared with using single peptides (p < 0.05). Peptides bound to PGD substrates exhibited specificity to their respective integrin targets. Following the shape memory cycle, peptides maintained functionality and specificity depending on the shape memory cycle conditions (p < 0.001). The dissipation of strain energy during recovery can drive differential arrangement of conjugated sequences impacting functionality, an important design consideration for functionalized SMPs. STATEMENT OF SIGNIFICANCE: Shape memory elastomers are an emerging class of polymers that are well-suited for minimally invasive repair of soft tissues. Tissue engineering approaches commonly utilize biodegradable scaffolds to deliver instructive cues, including cells and bioactive signals. Delivering these instructive cues on biodegradable shape memory elastomers requires modification with bioactive ligands. Furthermore, it is necessary to ensure the specificity of the ligands to their biological targets when conjugated to the polymer. Moreover, the bioactive ligand functionality must be conserved after completing the shape memory cycle, for applications in tissue engineering.
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Affiliation(s)
- Harsha Ramaraju
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States.
| | - Elisa Garcia-Gomez
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Annabel M McAtee
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Adam S Verga
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Scott J Hollister
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
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2
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Wang B, Wu Z, Han P, Zhu J, Yang H, Lin H, Qiao H, Lan J, Huang X. Casein phosphopeptide/antimicrobial peptide co-modified SrTiO 3 nanotubes for prevention of bacterial infections and repair of bone defects. Biochem Biophys Res Commun 2024; 733:150571. [PMID: 39197197 DOI: 10.1016/j.bbrc.2024.150571] [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: 06/05/2024] [Revised: 07/31/2024] [Accepted: 08/19/2024] [Indexed: 09/01/2024]
Abstract
Endowing titanium surfaces with multifunctional properties can reduce implant-related infections and enhance osseointegration. In this study, titanium dioxide nanotubes with strontium doping (STN) were first created on the titanium surface using anodic oxidation and hydrothermal synthesis techniques. Next, casein phosphopeptide (CCP) and an antimicrobial peptide (HHC36) were loaded into the STN with the aid of vacuum physical adsorption (STN-CP-H), giving the titanium surface a dual function of "antimicrobial-osteogenic". The surface of STN-CP-H has a suitable roughness and good hydrophilicity, which is conducive to osteoblasts. STN-CP-H had a 99 % antibacterial rate against S. aureus and E. coli and effectively prevented the growth of bacterial biofilm. Meanwhile, the antibacterial mechanism of STN-CP-H was initially explored with the help of transcriptome sequencing technology. STN-CP-H could greatly increase osteoblast adhesion, proliferation, and expression of osteogenic markers (alkaline phosphatase, runt-related transcription) when CCP and Sr worked together synergistically. In vivo, the STN-CP-H coating could effectively promote new osteogenesis around titanium implant bone and had no toxic effects on heart, liver, spleen, lung and kidney tissues. A potential anti-infection bone healing material, STN-CP-H bifunctional coating developed in this work efficiently inhibited bacterial infection of titanium implants and encouraged early osseointegration.
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Affiliation(s)
- Bingbing Wang
- College of Lab Medicine, Life Sciences Research Centre, Hebei North University, Zhangjiakou, 075000, China
| | - Zongze Wu
- Shenzhen Kurher Life Technology Co., Shenzhen, 518000, China
| | - Pengde Han
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Jialiang Zhu
- College of Lab Medicine, Life Sciences Research Centre, Hebei North University, Zhangjiakou, 075000, China
| | - Hao Yang
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, 430205, China
| | - He Lin
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Haixia Qiao
- College of Lab Medicine, Life Sciences Research Centre, Hebei North University, Zhangjiakou, 075000, China.
| | - Jinping Lan
- College of Lab Medicine, Life Sciences Research Centre, Hebei North University, Zhangjiakou, 075000, China.
| | - Xiao Huang
- Hunan Provincial Key Laboratory of Dong Medicine, Ethnic Medicine Research Center, Hunan University of Medicine, Huaihua, 418000, China.
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3
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Chen X, Xia C, Guo P, Wang C, Zuo X, Jiang YB, Jiang T. Preserving Structurally Labile Peptide Nanosheets After Molecular Functionalization of the Self-Assembling Peptides. Angew Chem Int Ed Engl 2024; 63:e202315296. [PMID: 38009674 DOI: 10.1002/anie.202315296] [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: 10/10/2023] [Revised: 11/14/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
A significant challenge in creating supramolecular materials is that conjugating molecular functionalities to building blocks often results in dissociation or undesired morphological transformation of their assemblies. Here we present a facile strategy to preserve structurally labile peptide assemblies after molecular modification of the self-assembling peptides. Sheet-forming peptides are designed to afford a staggered alignment with the segments bearing chemical modification sites protruding from the sheet surfaces. The staggered assembly allows for simultaneous separation of attached molecules from each other and from the underlying assembly motifs. Strikingly, using PEGs as the external molecules, PEG400 - and PEG700 -peptide conjugates directly self-associate into nanosheets with the PEG chains localized on the sheet surfaces. In contrast, the sheet formation based on in-register lateral packing of peptides does not recur upon the peptide PEGylation. This strategy allows for fabrication of densely modified assemblies with a variety of molecules, as demonstrated using biotin (hydrophobic molecule), c(RGDfK) (cyclic pentapeptide), and nucleic acid aptamer (negatively charged ssDNA). The staggered co-assembly also enables extended tunability of the amount/density of surface molecules, as exemplified by screening ligand-appended assemblies for cell targeting. This study paves the way for functionalization of historically challenging fragile assemblies while maintaining their overall morphology.
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Affiliation(s)
- Xin Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Xiamen, 361005, China
| | - Cai Xia
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Xiamen, 361005, China
| | - Pan Guo
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Xiamen, 361005, China
| | - Chenru Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Xiamen, 361005, China
| | - Xiaobing Zuo
- X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Xiamen, 361005, China
| | - Tao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Xiamen, 361005, China
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4
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Kowalczyk P, Kopeć K, Wojasiński M, Jaroszewicz J, Ciach T. Composite microgranular scaffolds with surface modifications for improved initial osteoblastic cell proliferation. BIOMATERIALS ADVANCES 2023; 151:213489. [PMID: 37267750 DOI: 10.1016/j.bioadv.2023.213489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/22/2023] [Accepted: 05/28/2023] [Indexed: 06/04/2023]
Abstract
Polyester-based granular scaffolds are a potent material for tissue engineering due to their porosity, controllable pore size, and potential to be molded into various shapes. Additionally, they can be produced as composite materials, e.g., mixed with osteoconductive β-tricalcium phosphate or hydroxyapatite. Such polymer-based composite materials often happen to be hydrophobic, which disrupts cell attachment and decreases cell growth on the scaffold, undermining its primary function. In this work, we propose the experimental comparison of three modification techniques for granular scaffolds to increase their hydrophilicity and cell attachment. Those techniques include atmospheric plasma treatment, polydopamine coating, and polynorepinephrine coating. Composite polymer/β-tricalcium phosphate granules have been produced in a solution-induced phase separation (SIPS) process using commercially available biomedical polymers: poly(lactic acid), poly(lactic-co-glycolic acid), and polycaprolactone. We used thermal assembly to prepare cylindrical scaffolds from composite microgranules. Atmospheric plasma treatment, polydopamine coating, and polynorepinephrine coating showed similar effects on polymer composites' hydrophilic and bioactive properties. All modifications significantly increased human osteosarcoma MG-63 cell adhesion and proliferation in vitro compared to cells cultured on unmodified materials. In the case of polycaprolactone/β-tricalcium phosphate scaffolds, modifications were the most necessary, as unmodified polycaprolactone-based material disrupted the cell attachment. Modified polylactide/β-tricalcium phosphate scaffold supported excellent cell growth and showed ultimate compressive strength exceeding this of human trabecular bone. This suggests that all investigated modification techniques can be used interchangeably for increasing wettability and cell attachment properties of various scaffolds for medical applications, especially those with high surface and volumetric porosity, like granular scaffolds.
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Affiliation(s)
- Piotr Kowalczyk
- Warsaw University of Technology, Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Ludwika Waryńskiego 1, 00-645 Warsaw, Poland; Centre for Advanced Materials and Technology CEZAMAT, Poleczki 19, 02-822 Warsaw, Poland.
| | - Kamil Kopeć
- Warsaw University of Technology, Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Ludwika Waryńskiego 1, 00-645 Warsaw, Poland
| | - Michał Wojasiński
- Warsaw University of Technology, Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Ludwika Waryńskiego 1, 00-645 Warsaw, Poland
| | - Jakub Jaroszewicz
- Warsaw University of Technology, Faculty of Material Science and Engineering, Wołoska 141, 02-507 Warsaw, Poland
| | - Tomasz Ciach
- Warsaw University of Technology, Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Ludwika Waryńskiego 1, 00-645 Warsaw, Poland; Centre for Advanced Materials and Technology CEZAMAT, Poleczki 19, 02-822 Warsaw, Poland
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5
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Parfenova LV, Galimshina ZR, Gil’fanova GU, Alibaeva EI, Danilko KV, Aubakirova VR, Farrakhov RG, Parfenov EV, Valiev RZ. Modeling of Biological Activity of PEO-Coated Titanium Implants with Conjugates of Cyclic RGD Peptide with Amino Acid Bisphosphonates. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8120. [PMID: 36431607 PMCID: PMC9699121 DOI: 10.3390/ma15228120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/07/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Titanium is considered to be the most essential metal in the field of implantology. The main factors determining metal biocompatibility, among others, include the morphology and chemical composition of the titanium surface. Therefore, the aim of this work was to develop approaches to control the biological activity of the titanium surface by creating coatings that combine both an inorganic phase with a given morphology and organic molecules containing an integrin-selective peptide that regulate cell adhesion and proliferation. As such, we synthesized new c(RGDfC) derivatives of amino acid bisphosphonates (four examples) with different bisphosphonate anchors and maleimide linkers. These molecules were deposited on a highly developed porous surface obtained via the plasma electrolytic oxidation (PEO) of coarse-grained and nanostructured titanium. In vitro studies demonstrated the increase in the viability degree of mesenchymal stem cells and fibroblasts on the surface of coarse-grained or nanostructured titanium modified with PEO and a c(RGDfC) derivative of ε-aminocaproic acid bisphophonate with an SMCC linker. As a result, the use of conjugates of amino acid bisphosphonates with a cyclic RGD peptide for the modification of PEO-coated titanium opens the ways for the effective control of the biological activity of the metal implant surface.
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Affiliation(s)
- Lyudmila V. Parfenova
- Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences, 141, Prospekt Oktyabrya, 450075 Ufa, Russia
| | - Zulfiya R. Galimshina
- Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences, 141, Prospekt Oktyabrya, 450075 Ufa, Russia
| | - Guzel U. Gil’fanova
- Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences, 141, Prospekt Oktyabrya, 450075 Ufa, Russia
| | - Eliza I. Alibaeva
- Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences, 141, Prospekt Oktyabrya, 450075 Ufa, Russia
| | - Ksenia V. Danilko
- Central Research Laboratory, Bashkir State Medical University, 3 Lenin Street, 450000 Ufa, Russia
| | - Veta R. Aubakirova
- Department of Electronic Engineering, Ufa State Aviation Technical University, 12 Karl Marx Street, 450008 Ufa, Russia
| | - Ruzil G. Farrakhov
- Department of Electronic Engineering, Ufa State Aviation Technical University, 12 Karl Marx Street, 450008 Ufa, Russia
| | - Evgeny V. Parfenov
- Department of Materials Science and Physics of Metals, Ufa State Aviation Technical University, 12 Karl Marx Street, 450008 Ufa, Russia
| | - Ruslan Z. Valiev
- Department of Materials Science and Physics of Metals, Ufa State Aviation Technical University, 12 Karl Marx Street, 450008 Ufa, Russia
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6
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Rao TC, Beggs RR, Ankenbauer KE, Hwang J, Ma VPY, Salaita K, Bellis SL, Mattheyses AL. ST6Gal-I-mediated sialylation of the epidermal growth factor receptor modulates cell mechanics and enhances invasion. J Biol Chem 2022; 298:101726. [PMID: 35157848 PMCID: PMC8956946 DOI: 10.1016/j.jbc.2022.101726] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 12/19/2022] Open
Abstract
Heterogeneity within the glycocalyx influences cell adhesion mechanics and signaling. However, the role of specific glycosylation subtypes in influencing cell mechanics via alterations of receptor function remains unexplored. It has been shown that the addition of sialic acid to terminal glycans impacts growth, development, and cancer progression. In addition, the sialyltransferase ST6Gal-I promotes epidermal growth factor receptor (EGFR) activity, and we have shown EGFR is an 'allosteric mechano-organizer' of integrin tension. Here, we investigated the impact of ST6Gal-I on cell mechanics. Using DNA-based tension gauge tether probes of variable thresholds, we found that high ST6Gal-I activity promotes increased integrin forces and spreading in Cos-7 and OVCAR3, OVCAR5, and OV4 cancer cells. Further, employing inhibitors and function-blocking antibodies against β1, β3, and β5 integrins and ST6Gal-I targets EGFR, tumor necrosis factor receptor, and Fas cell surface death receptor, we validated that the observed phenotypes are EGFR-specific. We found that while tension, contractility, and adhesion are extracellular-signal-regulated kinase pathway-dependent, spreading, proliferation, and invasion are phosphoinositide 3-kinase-Akt serine/threonine kinase dependent. Using total internal reflection fluorescence microscopy and flow cytometry, we also show that high ST6Gal-I activity leads to sustained EGFR membrane retention, making it a key regulator of cell mechanics. Our findings suggest a novel sialylation-dependent mechanism orchestrating cellular mechanics and enhancing cell motility via EGFR signaling.
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Affiliation(s)
- Tejeshwar C Rao
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Reena R Beggs
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Katherine E Ankenbauer
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jihye Hwang
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Khalid Salaita
- Department of Chemistry, Emory University, Atlanta, Georgia, USA
| | - Susan L Bellis
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Alexa L Mattheyses
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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7
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Robitaille MC, Christodoulides JA, Calhoun PJ, Byers JM, Raphael MP. Interfacing Live Cells with Surfaces: A Concurrent Control Technique for Quantifying Surface Ligand Activity. ACS APPLIED BIO MATERIALS 2021; 4:7856-7864. [PMID: 35006767 DOI: 10.1021/acsabm.1c00797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Surface ligand activity is a key design parameter for successfully interfacing surfaces with cells─whether in the context of in vitro investigations for understanding cellular signaling pathways or more applied applications in drug delivery and medical implants. Unlike other crucial surface parameters, such as stiffness and roughness, surface ligand activity is typically based on a set of assumptions rather than directly measured, giving rise to interpretations of cell adhesion that can vary with the assumptions made. To fill this void, we have developed a concurrent control technique for directly characterizing in vitro ligand surface activity. Pairs of gold-coated glass chips were biofunctionalized with RGD ligand in a parallel workflow: one chip for in vitro applications and the other for surface plasmon resonance (SPR)-based RGD activity characterization. Recombinant αVβ3 integrins were injected over the SPR chip surface as mimics of the cellular-membrane-bound receptors and the resulting binding kinetics parameterized to quantify surface ligand activity. These activity measurements were correlated with cell morphological features, measured by interfacing MDA-MB-231 cells with the in vitro chip surfaces on the live cell microscope. We demonstrate how the interpretation of a cell phenotype based on direct activity measurements can vary markedly from interpretations based on assumed activity. The SPR concurrent control approach has multiple advantages due to the fact that SPR is a standardized technique and has the sensitivity to measure ligand activity across the most relevant range of extracellular surface densities, while the in vitro chip design can be used with all commonly used light microscopy modalities (e.g., phase contrast, DIC, and fluorescence) so that a wide range of phenotypic and molecular markers can be correlated to the ligand surface activity.
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Affiliation(s)
- Michael C Robitaille
- Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375-5320, United States
| | | | | | - Jeff M Byers
- Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375-5320, United States
| | - Marc P Raphael
- Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375-5320, United States
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8
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Whitaker R, Hernaez-Estrada B, Hernandez RM, Santos-Vizcaino E, Spiller KL. Immunomodulatory Biomaterials for Tissue Repair. Chem Rev 2021; 121:11305-11335. [PMID: 34415742 DOI: 10.1021/acs.chemrev.0c00895] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
All implanted biomaterials are targets of the host's immune system. While the host inflammatory response was once considered a detrimental force to be blunted or avoided, in recent years, it has become a powerful force to be leveraged to augment biomaterial-tissue integration and tissue repair. In this review, we will discuss the major immune cells that mediate the inflammatory response to biomaterials, with a focus on how biomaterials can be designed to modulate immune cell behavior to promote biomaterial-tissue integration. In particular, the intentional activation of monocytes and macrophages with controlled timing, and modulation of their interactions with other cell types involved in wound healing, have emerged as key strategies to improve biomaterial efficacy. To this end, careful design of biomaterial structure and controlled release of immunomodulators can be employed to manipulate macrophage phenotype for the maximization of the wound healing response with enhanced tissue integration and repair, as opposed to a typical foreign body response characterized by fibrous encapsulation and implant isolation. We discuss current challenges in the clinical translation of immunomodulatory biomaterials, such as limitations in the use of in vitro studies and animal models to model the human immune response. Finally, we describe future directions and opportunities for understanding and controlling the biomaterial-immune system interface, including the application of new imaging tools, new animal models, the discovery of new cellular targets, and novel techniques for in situ immune cell reprogramming.
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Affiliation(s)
- Ricardo Whitaker
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Beatriz Hernaez-Estrada
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States.,NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz 01006, Spain
| | - Rosa Maria Hernandez
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz 01006, Spain.,Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz 01006, Spain
| | - Edorta Santos-Vizcaino
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz 01006, Spain.,Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz 01006, Spain
| | - Kara L Spiller
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
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9
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Pedrero SG, Llamas-Sillero P, Serrano-López J. A Multidisciplinary Journey towards Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4896. [PMID: 34500986 PMCID: PMC8432705 DOI: 10.3390/ma14174896] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/14/2021] [Accepted: 08/25/2021] [Indexed: 01/08/2023]
Abstract
Millions of patients suffer yearly from bone fractures and disorders such as osteoporosis or cancer, which constitute the most common causes of severe long-term pain and physical disabilities. The intrinsic capacity of bone to repair the damaged bone allows normal healing of most small bone injuries. However, larger bone defects or more complex diseases require additional stimulation to fully heal. In this context, the traditional routes to address bone disorders present several associated drawbacks concerning their efficacy and cost-effectiveness. Thus, alternative therapies become necessary to overcome these limitations. In recent decades, bone tissue engineering has emerged as a promising interdisciplinary strategy to mimic environments specifically designed to facilitate bone tissue regeneration. Approaches developed to date aim at three essential factors: osteoconductive scaffolds, osteoinduction through growth factors, and cells with osteogenic capability. This review addresses the biological basis of bone and its remodeling process, providing an overview of the bone tissue engineering strategies developed to date and describing the mechanisms that underlie cell-biomaterial interactions.
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Affiliation(s)
- Sara G. Pedrero
- Experimental Hematology Lab, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (S.G.P.); (P.L.-S.)
| | - Pilar Llamas-Sillero
- Experimental Hematology Lab, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (S.G.P.); (P.L.-S.)
- Hematology Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
| | - Juana Serrano-López
- Experimental Hematology Lab, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (S.G.P.); (P.L.-S.)
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10
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Review on material parameters to enhance bone cell function in vitro and in vivo. Biochem Soc Trans 2021; 48:2039-2050. [PMID: 32940685 DOI: 10.1042/bst20200210] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 02/07/2023]
Abstract
Bone plays critical roles in support, protection, movement, and metabolism. Although bone has an innate capacity for regeneration, this capacity is limited, and many bone injuries and diseases require intervention. Biomaterials are a critical component of many treatments to restore bone function and include non-resorbable implants to augment bone and resorbable materials to guide regeneration. Biomaterials can vary considerably in their biocompatibility and bioactivity, which are functions of specific material parameters. The success of biomaterials in bone augmentation and regeneration is based on their effects on the function of bone cells. Such functions include adhesion, migration, inflammation, proliferation, communication, differentiation, resorption, and vascularization. This review will focus on how different material parameters can enhance bone cell function both in vitro and in vivo.
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11
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Zhang RM, Zeyer KA, Odenthal N, Zhang Y, Reinhardt DP. The fibrillin-1 RGD motif posttranscriptionally regulates ERK1/2 signaling and fibroblast proliferation via miR-1208. FASEB J 2021; 35:e21598. [PMID: 33871068 DOI: 10.1096/fj.202100282r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 12/17/2022]
Abstract
Fibrillin-1 is an extracellular matrix protein which contains one conserved RGD integrin-binding motif. It constitutes the backbone of microfibrils in many tissues, and mutations in fibrillin-1 cause various connective tissue disorders. Although it is well established that fibrillin-1 interacts with several RGD-dependent integrins, very little is known about the associated intracellular signaling pathways. Recent published evidence identified a subset of miRNAs regulated by fibrillin-1 RGD-cell adhesion, with miR-1208 among the most downregulated. The present study shows that the downregulated miR-1208 controls fibroblast proliferation. Inhibitor experiments revealed that fibrillin-1 RGD suppressed miR-1208 expression via c-Src kinase and the downstream JNK signaling. Bioinformatic prediction and experimental target sequence validation demonstrated four miR-1208 binding sites on the ERK2 mRNA and one on the MEK1 mRNA. ERK2 and MEK1 are critical proliferation-promoting kinases. Decreased miR-1208 levels elevated the total and phosphorylated ERK1/2 and MEK1/2 protein levels and the phosphorylated to total ERK1/2 ratio. Together, the data demonstrate a novel outside-in signaling mechanism explaining how fibrillin-1 RGD-cell binding regulates fibroblast proliferation.
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Affiliation(s)
- Rong-Mo Zhang
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Karina A Zeyer
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Nadine Odenthal
- Department of Natural Science, University of Lübeck, Lübeck, Germany
| | - Yiyun Zhang
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Dieter P Reinhardt
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada.,Faculty of Dentistry, McGill University, Montreal, Canada
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12
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Vedaraman S, Bernhagen D, Haraszti T, Licht C, Castro Nava A, Omidinia Anarkoli A, Timmerman P, De Laporte L. Bicyclic RGD peptides enhance nerve growth in synthetic PEG-based Anisogels. Biomater Sci 2021; 9:4329-4342. [PMID: 33724266 PMCID: PMC8204161 DOI: 10.1039/d0bm02051f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/16/2021] [Indexed: 02/03/2023]
Abstract
Nerve regeneration scaffolds often consist of soft hydrogels modified with extracellular matrix (ECM) proteins or fragments, as well as linear and cyclic peptides. One of the commonly used integrin-mediated cell adhesive peptide sequences is Arg-Gly-Asp (RGD). Despite its straightforward coupling mechanisms to artificial extracellular matrix (aECM) constructs, linear RGD peptides suffer from low stability towards degradation and lack integrin selectivity. Cyclization of RGD improves the affinity towards integrin subtypes but lacks selectivity. In this study, a new class of short bicyclic peptides with RGD in a cyclic loop and 'random screened' tri-amino acid peptide sequences in the second loop is investigated as a biochemical cue for cell growth inside three-dimensional (3D) synthetic poly(ethylene glycol) (PEG)-based Anisogels. These peptides impart high integrin affinity and selectivity towards either αvβ3 or α5β1 integrin subunits. Enzymatic conjugation of such bicyclic peptides to the PEG backbone enables the formulation of an aECM hydrogel that supports nerve growth. Furthermore, different proteolytic cleavable moieties are incorporated and compared to promote cell migration and proliferation, resulting in enhanced cell growth with different degradable peptide crosslinkers. Mouse fibroblasts and primary nerve cells from embryonic chick dorsal root ganglions (DRGs) show superior growth in bicyclic RGD peptide conjugated gels selective towards αvβ3 or α5β1, compared to monocyclic or linear RGD peptides, with a slight preference to αvβ3 selective bicyclic peptides in the case of nerve growth. Synthetic Anisogels, modified with bicyclic RGD peptides and containing short aligned, magneto-responsive fibers, show oriented DRG outgrowth parallel to the fibers. This report shows the potential of PEG hydrogels coupled with bicyclic RGD peptides as an aECM model and paves the way for a new class of integrin selective biomolecules for cell growth and nerve regeneration.
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Affiliation(s)
- Sitara Vedaraman
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, 52074 Aachen, Germany and Institute for Technical and Macromolecular Chemistry, RWTH Aachen, Worringerweg 1-2, 52074 Aachen, Germany.
| | - Dominik Bernhagen
- Pepscan Therapeutics, Zuidersluisweg 2, 8243 RC Lelystad, the Netherlands
| | - Tamas Haraszti
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, 52074 Aachen, Germany and Institute for Technical and Macromolecular Chemistry, RWTH Aachen, Worringerweg 1-2, 52074 Aachen, Germany.
| | - Christopher Licht
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, 52074 Aachen, Germany and Institute for Technical and Macromolecular Chemistry, RWTH Aachen, Worringerweg 1-2, 52074 Aachen, Germany.
| | - Arturo Castro Nava
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, 52074 Aachen, Germany and Institute for Technical and Macromolecular Chemistry, RWTH Aachen, Worringerweg 1-2, 52074 Aachen, Germany.
| | - Abdolrahman Omidinia Anarkoli
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, 52074 Aachen, Germany and Institute for Technical and Macromolecular Chemistry, RWTH Aachen, Worringerweg 1-2, 52074 Aachen, Germany.
| | - Peter Timmerman
- Pepscan Therapeutics, Zuidersluisweg 2, 8243 RC Lelystad, the Netherlands and Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands
| | - Laura De Laporte
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, 52074 Aachen, Germany and Institute for Technical and Macromolecular Chemistry, RWTH Aachen, Worringerweg 1-2, 52074 Aachen, Germany. and Institute of Applied Medical Engineering, RWTH University, Pauwelsstraße 20, 52074 Aachen, Germany
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A Novel Bone Substitute Based on Recombinant Type I Collagen for Reconstruction of Alveolar Cleft. MATERIALS 2021; 14:ma14092306. [PMID: 33946797 PMCID: PMC8125289 DOI: 10.3390/ma14092306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/22/2021] [Accepted: 04/22/2021] [Indexed: 11/29/2022]
Abstract
This study aimed to examine the optimal cross-link density of recombinant peptide (RCP) particles, based on human collagen type I, for bone reconstruction in human alveolar cleft. Low- (group 1), medium- (group 2), and high- (group 3) cross-linked RCP particles were prepared by altering the duration of the heat-dependent dehydration reaction. Rat palatine fissures (n = 45), analogous to human congenital bone defects, were examined to evaluate the potential of bone formation by the three different RCP particles. Microcomputed tomography images were obtained to measure bone volume and bone mineral density at 4, 8, 12, and 16 weeks post grafting. Specimens were obtained for histological analysis at 16 weeks after grafting. Additionally, alkaline phosphatase and tartrate acid phosphatase staining were performed to visualize the presence of osteoblasts and osteoclasts. At 16 weeks, bone volume, bone mineral density, and new bone area measurements in group 2 were significantly higher than in any other group. In addition, the number of osteoblasts and osteoclasts on the new bone surface in group 2 was significantly higher than in any other group. Our results demonstrated that medium cross-linking was more suitable for bone formation—and could be useful in human alveolar cleft repairs as well.
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14
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Li P, Gao Z, Tan Z, Xiao J, Wei L, Chen Y. New developments in anti-biofilm intervention towards effective management of orthopedic device related infections (ODRI's). BIOFOULING 2021; 37:1-35. [PMID: 33618584 DOI: 10.1080/08927014.2020.1869725] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 12/15/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Orthopedic device related infections (ODRI's) represent a difficult to treat situation owing to their biofilm based nature. Biofilm infections once established are difficult to eradicate even with an aggressive treatment regimen due to their recalcitrance towards antibiotics and immune attack. The involvement of antibiotic resistant pathogens as the etiological agent further worsens the overall clinical picture, pressing on the need to look into alternative treatment strategies. The present review highlightes the microbiological challenges associated with treatment of ODRI's due to biofilm formation on the implant surface. Further, it details the newer anti-infective modalities that work either by preventing biofilm formation and/or through effective disruption of the mature biofilms formed on the medical implant. The study, therefore aims to provide a comprehensive insight into the newer anti-biofilm interventions (non-antibiotic approaches) and a better understanding of their mechanism of action essential for improved management of orthopedic implant infections.
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Affiliation(s)
- Ping Li
- Department of Orthopedics, Ya'an People's Hospital, Yaan City, China
| | - Zhenwu Gao
- Department of Orthopedics, Shanxi Bethune Hospital, Taiyuan City, China
| | - Zhenwei Tan
- Department of Orthopedics, Western Theater Air Force Hospital of PLA, Chengdu, China
| | - Jun Xiao
- Department of Orthopedics, Ya'an People's Hospital, Yaan City, China
| | - Li Wei
- Nursing Department, Three Gorges Hospital Affiliated to Chongqing University, Chongqing, China
| | - Yirui Chen
- Department of Orthopedics, Three Gorges Hospital Affiliated to Chongqing University, Chongqing, China
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15
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Akiyama Y, Ito M, Toriumi T, Hiratsuka T, Arai Y, Tanaka S, Futenma T, Akiyama Y, Yamaguchi K, Azuma A, Hata KI, Natsume N, Honda M. Bone formation potential of collagen type I-based recombinant peptide particles in rat calvaria defects. Regen Ther 2020; 16:12-22. [PMID: 33426238 PMCID: PMC7773759 DOI: 10.1016/j.reth.2020.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/25/2020] [Accepted: 12/03/2020] [Indexed: 12/28/2022] Open
Abstract
Introduction This study aimed to examine the bone-forming ability of medium-cross-linked recombinant collagen peptide (mRCP) particles developedbased on human collagen type I, contains an arginyl-glycyl-aspartic acid-rich motif, fabricated as bone filling material, compared to that of the autologous bone graft. Methods Calvarial bone defects were created in immunodeficient rats though a surgical procedure. The rats were divided into 2 groups: mRCP graft and tibia bone graft (bone graft). The bone formation potential of mRCP was evaluated by micro-computed tomography and hematoxylin-eosin staining at 1, 2, 3, and 4 weeks after surgery, and the data were analyzed and compared to those of the bone graft. Results The axial volume-rendered images demonstrated considerable bony bridging with the mRCP graft, but there was no significant difference in the bone volume and bone mineral density between the mRCP graft and bone graft at 4 weeks. The peripheral new bone density was significantly higher than the central new bone density and the bottom side score was significantly higher than the top side score at early stage in the regenerated bone within the bone defects. Conclusion These results indicate that mRCP has a high potential of recruiting osteogenic cells, comparable to that of autologous bone chips. Bone formation potential of mRCP were comparable to that of autogenous bone. mRCP particles exhibit high new bone formation potential in the calvaria defect. Bone bridging was observed over the entire defect in mRCP graft at 4 weeks. mRCP has a high potential of recruiting osteogenic cells comparable to bone graft.
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Key Words
- ALP, alkaline phosphatase
- Autologous bone
- BMD, bone mineral density
- BMSCs, bone marrow derived mesenchymal stem cells
- Bone reconstruction
- Bone substitute
- CSD, critical-size defect
- Calvaria
- Collagen scaffold
- DHT, dehydothermal treatment
- H&E, hematoxylin and eosin
- RCP, recombinant collagen peptide
- RGD, arginyl-glycyl-aspartic acid
- ROIs, regions of interest
- Recombinant human collagen peptide
- SD, standard deviation
- TRAP, tartrate-resistant acid phosphatase
- mRCP, medium-cross-linked RCP
- micro-CT, micro-computed tomography
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Affiliation(s)
- Yasunori Akiyama
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Aichi, 464-8651, Japan
| | - Masaaki Ito
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Aichi, 464-8651, Japan
| | - Taku Toriumi
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
| | - Takahiro Hiratsuka
- Bio Science & Engineering Laboratory, Research & Development Management Headquarters FUJIFILM Corporation, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa, 258-8577, Japan
| | - Yoshinori Arai
- Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan
| | - Sho Tanaka
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
| | - Taku Futenma
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
| | - Yuhki Akiyama
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Aichi, 464-8651, Japan
| | - Kazuhiro Yamaguchi
- Bio Science & Engineering Laboratory, Research & Development Management Headquarters FUJIFILM Corporation, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa, 258-8577, Japan
| | - Akihiko Azuma
- Bio Science & Engineering Laboratory, Research & Development Management Headquarters FUJIFILM Corporation, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa, 258-8577, Japan
| | - Ken-Ichiro Hata
- Bio Science & Engineering Laboratory, Research & Development Management Headquarters FUJIFILM Corporation, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa, 258-8577, Japan
| | - Nagato Natsume
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Aichi, 464-8651, Japan
| | - Masaki Honda
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan
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16
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Martin-Gómez H, Oliver-Cervelló L, Buxadera-Palomero J, Ginebra MP, Mas-Moruno C. Chemically Diverse Multifunctional Peptide Platforms with Antimicrobial and Cell Adhesive Properties. Chembiochem 2020; 22:839-844. [PMID: 33094896 DOI: 10.1002/cbic.202000670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/22/2020] [Indexed: 12/16/2022]
Abstract
Bacterial infections and incomplete biomaterial integration are major problems that can lead to the failure of medical implants. However, simultaneously addressing these two issues remains a challenge. Here, we present a chemical peptide library based on a multifunctional platform containing the antimicrobial peptide LF1-11 and the cell-adhesive motif RGD. The scaffolds were customized with catechol groups to ensure straightforward functionalization of the implant surface, and linkers of different length to assess the effect of peptide accessibility on the biological response. The peptidic platforms significantly improved the adhesion of mesenchymal stem cells and showed antimicrobial effects against Staphylococcus aureus. Of note is that peptides bearing spacers that were too long displayed the lowest efficiency. Subsequently, we designed a platform replacing linear RGD by cyclic RGD; this further enhanced eukaryotic cell adhesion while retaining excellent antimicrobial properties, thus being a suitable candidate for tissue engineering applications.
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Affiliation(s)
- Helena Martin-Gómez
- Department of Materials Science and Engineering, Biomaterials Biomechanics and Tissue Engineering Group (BBT), Universitat Politècnica de Catalunya (UPC), Diagonal, 647, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019, Barcelona, Spain
| | - Lluís Oliver-Cervelló
- Department of Materials Science and Engineering, Biomaterials Biomechanics and Tissue Engineering Group (BBT), Universitat Politècnica de Catalunya (UPC), Diagonal, 647, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019, Barcelona, Spain
| | - Judit Buxadera-Palomero
- Department of Materials Science and Engineering, Biomaterials Biomechanics and Tissue Engineering Group (BBT), Universitat Politècnica de Catalunya (UPC), Diagonal, 647, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019, Barcelona, Spain
| | - Maria-Pau Ginebra
- Department of Materials Science and Engineering, Biomaterials Biomechanics and Tissue Engineering Group (BBT), Universitat Politècnica de Catalunya (UPC), Diagonal, 647, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019, Barcelona, Spain
| | - Carles Mas-Moruno
- Department of Materials Science and Engineering, Biomaterials Biomechanics and Tissue Engineering Group (BBT), Universitat Politècnica de Catalunya (UPC), Diagonal, 647, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, 08019, Barcelona, Spain
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17
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Trujillo S, Vega SL, Song KH, San Félix A, Dalby MJ, Burdick JA, Salmeron‐Sanchez M. Engineered Full-Length Fibronectin-Hyaluronic Acid Hydrogels for Stem Cell Engineering. Adv Healthc Mater 2020; 9:e2000989. [PMID: 33002348 DOI: 10.1002/adhm.202000989] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/04/2020] [Indexed: 11/09/2022]
Abstract
Mechanical cues induce a variety of downstream effects on cells, including the regulation of stem cell behavior. Cell fate is typically characterized on biomaterial substrates where mechanical and chemical properties can be precisely tuned; however, most of these substrates do not recapitulate the biological complexity of the extracellular matrix (ECM). Here, hydrogels are engineered for mechanobiological studies using two major components of the ECM: hyaluronic acid (HA) and fibronectin (FN). Rather than typical surface chemisorption of FN to substrates, the system contains full-length FN covalently crosslinked to HA throughout the hydrogel. The control over the mechanical properties of the hydrogel independent of the concentration of FN and the ability to culture viable cells either on top or encapsulated within the hydrogels are shown. Interestingly, human mesenchymal stem cells (MSCs) experience an increase in nuclear translocation of the yes-associated protein (YAP) to the nucleus when cultured on (2D) substrates with increasing amounts of FN while maintaining constant hydrogel stiffness. However, this FN dependence on nuclear YAP translocation is not observed for MSCs encapsulated in (3D) hydrogels. This work develops complex hydrogels that recapitulate features of the ECM for the control of stem cells in both 2D and 3D environments.
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Affiliation(s)
- Sara Trujillo
- Centre for the Cellular Microenvironment University of Glasgow Glasgow G12 8LT UK
| | - Sebastián L. Vega
- Department of Biomedical Engineering Rowan University Glassboro NJ 08028 USA
| | - Kwang Hoon Song
- Division of Bioengineering Incheon National University Incheon 22012 Korea
| | - Ana San Félix
- Centre for the Cellular Microenvironment University of Glasgow Glasgow G12 8LT UK
| | - Matthew J. Dalby
- Centre for the Cellular Microenvironment University of Glasgow Glasgow G12 8LT UK
| | - Jason A. Burdick
- Department of Bioengineering University of Pennsylvania Philadelphia PA 19104 USA
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18
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Rao TC, Ma VPY, Blanchard A, Urner TM, Grandhi S, Salaita K, Mattheyses AL. EGFR activation attenuates the mechanical threshold for integrin tension and focal adhesion formation. J Cell Sci 2020; 133:jcs238840. [PMID: 32546532 PMCID: PMC7358133 DOI: 10.1242/jcs.238840] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 06/04/2020] [Indexed: 02/06/2023] Open
Abstract
Mechanical forces, growth factors and the extracellular matrix all play crucial roles in cell adhesion. To understand how epidermal growth factor receptor (EGFR) impacts the mechanics of adhesion, we employed tension gauge tether (TGT) probes displaying the integrin ligand cRGDfK and quantified integrin tension. EGF exposure significantly increased spread area, cell circularity, integrated integrin tension, mechanical rupture density, radial organization and size of focal adhesions in Cos-7 cells on TGT surfaces. These findings suggest that EGFR regulates integrin tension and the spatial organization of focal adhesions. Additionally, we found that the mechanical tension threshold for outside-in integrin activation is tunable by EGFR. Parallel genetic and pharmacologic strategies demonstrated that these phenotypes are driven by ligand-dependent EGFR signaling. Our results establish a novel mechanism whereby EGFR regulates integrin activation and cell adhesion, providing control over cellular responses to the environment.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Tejeshwar C Rao
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Aaron Blanchard
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30322, USA
| | - Tara M Urner
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Shreya Grandhi
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Khalid Salaita
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30322, USA
| | - Alexa L Mattheyses
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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19
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Robitaille MC, Christodoulides JA, Liu J, Kang W, Byers JM, Raphael MP. Problem of Diminished cRGD Surface Activity and What Can Be Done about It. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19337-19344. [PMID: 32249578 DOI: 10.1021/acsami.0c04340] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
RGD peptides play a pivotal role in growing and diverse areas of biological research, ranging from in vitro experiments probing fundamental molecular mechanisms of cell adhesion to more applied in vivo strategies in medical imaging and cancer therapeutics. To better understand the outcomes of RGD-based approaches, we quantified the degree to which cyclic RGD (cRGD) activity is blocked by nonspecific binding of commonly used medium constituents. First, we show that recombinant αVβ3 integrins can be used as a highly sensitive cell-free sensor to quantitatively and reliably characterize the activity of cRGD-functionalized surfaces via surface plasmon resonance (SPR). Next, SPR experiments were utilized to measure the extent of blocking of cRGD-functionalized surfaces by the commonly used agents BSA, PLL-g-PEG, and fetal calf serum (FCS)-supplemented media, using recombinant αVβ3 integrin as a probe for cRGD binding activity in the presence of blocking agents. All three additives were highly efficient blockers of cRGD activity, as exemplified by cell culture media containing 1% FCS which reduced the cRGD activity by 33-fold. We then developed a strategy to combat these deleterious effects by employing the recombinant integrins as a protective cap. We show that the unblocked cRGD activity can be preserved in the presence of PLL-g-PEG by employing the αVβ3 integrin as a removable protective cap, both in cell-free and in vitro experiments. In vitro studies with MDA-MB-231 cells cultured atop cRGD-functionalized surfaces found that cell adhesion and migration prevented by PLL-g-PEG were restored when this protective cap approach was used.
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Affiliation(s)
- Michael C Robitaille
- Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5320, United States
| | | | - Jinny Liu
- Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5320, United States
| | - Wonmo Kang
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Jeff M Byers
- Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5320, United States
| | - Marc P Raphael
- Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5320, United States
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20
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Hasturk O, Jordan KE, Choi J, Kaplan DL. Enzymatically crosslinked silk and silk-gelatin hydrogels with tunable gelation kinetics, mechanical properties and bioactivity for cell culture and encapsulation. Biomaterials 2020; 232:119720. [PMID: 31896515 PMCID: PMC7667870 DOI: 10.1016/j.biomaterials.2019.119720] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/14/2019] [Accepted: 12/20/2019] [Indexed: 12/18/2022]
Abstract
Silk fibroin (SF) was enzymatically crosslinked with tyramine-substituted silk fibroin (SF-TA) or gelatin (G-TA) to fabricate hybrid hydrogels with tunable gelation kinetics, mechanical properties and bioactivity. Horseradish peroxidase (HRP)/hydrogen peroxide (H2O2) mediated crosslinking of SF in physiological buffers results in slow gelation and limited mechanical properties. Moreover, SF lacks cell attachment sequences, leading to poor cell-material interactions. These shortcomings can limit the uses of enzymatically crosslinked silk hydrogels in injectable tissue fillings, 3D bioprinting or cell microencapsulation, where rapid gelation and high bioactivity are desired. Here SF/SF-TA and SF/G-TA composite hydrogels were characterized for hydrogel properties and the influence of conjugated cyclic arginine-glycine-aspartic acid (RGD) peptide or G-TA content on bioactivity was explored. Both SF-TA and G-TA significantly increased gelation kinetics, improved mechanical properties and delayed enzymatic degradation in a concentration-dependent manner. β-Sheet formation and hydrogel stiffening were accelerated by SF-TA content but delayed by G-TA. Both cyclic RGD and G-TA significantly improved morphology and metabolic activity of human mesenchymal stem cells (hMSCs) cultured on or encapsulated in composite hydrogels. The hydrogel formulations introduced in this study provide improved control of gel formation and properties, along with biocompatible systems that can be utilized in tissue engineering and cell delivery applications.
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Affiliation(s)
- Onur Hasturk
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA, 02155, USA
| | - Kathryn E Jordan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA, 02155, USA
| | - Jaewon Choi
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA, 02155, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA, 02155, USA.
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21
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Han WM, Jang YC, García AJ. The Extracellular Matrix and Cell–Biomaterial Interactions. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00045-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Augmented osteogenesis of mesenchymal stem cells using a fragmented Runx2 mixed with cell-penetrating, dimeric a-helical peptide. Eur J Pharm Sci 2019; 144:105210. [PMID: 31899341 DOI: 10.1016/j.ejps.2019.105210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/15/2019] [Accepted: 12/30/2019] [Indexed: 12/13/2022]
Abstract
The intracellular delivery of transcription factor/cofactor using cell penetrating peptide (CPP) can lead to selective osteogenesis. The present work investigates the cell-penetrating potential of the a cyclic, α-helical cell-penetrating peptide based on leucine and lysine residues (cLK) for intracellular delivery in MC3T3 cells and the osteogenic effects of a C-terminal proline‑serine‑threonine-rich (PST) domain of Runx2 using cLK in rat mesenchymal stem cells (MSCs). We confirmed that the combination of cLK and fluorescein 5-isothiocyanate (FITC)-fragmented-Runx2 (fRunx2) showed an enhanced cell-penetrating activity of FITC-fRunx2 compared with FITC-fRunx2 alone. In addition, the fRunx2-cLK group showed strong staining with alizarin red compared with other groups and the degree of alizarin red staining in the fRunx2-cLK group was also 1.2-fold higher than that in the fRunx2-Tat group. The ALP and osteocalcin gene expression levels in the fRunx2-cLK group were higher than those in the other groups. The fRunx2 transferred effectively into the cytoplasm aided by the cLK peptide and augmented the osteogenic differentiation of MSCs.
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23
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Tateno A, Asano M, Akita D, Toriumi T, Tsurumachi-Iwasaki N, Kazama T, Arai Y, Matsumoto T, Kano K, Honda M. Transplantation of dedifferentiated fat cells combined with a biodegradable type I collagen-recombinant peptide scaffold for critical-size bone defects in rats. J Oral Sci 2019; 61:534-538. [PMID: 31631097 DOI: 10.2334/josnusd.18-0458] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Tissue engineering is a promising approach to supplement existing treatment strategies for craniofacial bone regeneration. In this study, a type I collagen scaffold made from a recombinant peptide (RCP) with an Arg-Gly-Asp motif was developed, and its effect on regeneration in critical-size mandibular bone defects was evaluated. Additionally, the combined effect of the scaffold and lipid-free dedifferentiated fat (DFAT) cells was assessed. Briefly, DFAT cells were separated from mature adipocytes by using a ceiling culture technique based on buoyancy. A 3 cm × 4 cm critical-size bone defect was created in the rat mandible, and regeneration was evaluated by using RCP with DFAT cells. Then, cultured DFAT cells and adipose-derived stem cells (ASCs) were seeded onto RCP scaffolds (DFAT/RCP and ASC/RCP) and implanted into the bone defects. Micro-computed tomography imaging at 8 weeks after implantation showed significantly greater bone regeneration in the DFAT/RCP group than in the ASC/RCP and RCP-alone groups. Similarly, histological analysis showed significantly greater bone width in the DFAT/RCP group than in the ASC/RCP and RCP-alone groups. These findings suggest that DFAT/RCP is effective for bone formation in critical-size bone defects and that DFAT cells are a promising source for bone regeneration.
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Affiliation(s)
- Atsushi Tateno
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry
| | - Masatake Asano
- Department of Pathology, Nihon University School of Dentistry.,Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry
| | - Daisuke Akita
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
| | - Taku Toriumi
- Department of Oral Anatomy, Aichi Gakuin University School of Dentistry
| | | | - Tomohiko Kazama
- Department of Functional Morphology, Division of Cell Regeneration and Transplantation, Nihon University School of Medicine
| | - Yoshinori Arai
- Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry
| | - Taro Matsumoto
- Department of Functional Morphology, Division of Cell Regeneration and Transplantation, Nihon University School of Medicine
| | - Koichiro Kano
- Laboratory of Cell and Tissue Biology, College of Bioresource Sciences, Nihon University
| | - Masaki Honda
- Department of Oral Anatomy, Aichi Gakuin University School of Dentistry
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24
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Baldwin M, Snelling S, Dakin S, Carr A. Augmenting endogenous repair of soft tissues with nanofibre scaffolds. J R Soc Interface 2019; 15:rsif.2018.0019. [PMID: 29695606 DOI: 10.1098/rsif.2018.0019] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/04/2018] [Indexed: 12/21/2022] Open
Abstract
As our ability to engineer nanoscale materials has developed we can now influence endogenous cellular processes with increasing precision. Consequently, the use of biomaterials to induce and guide the repair and regeneration of tissues is a rapidly developing area. This review focuses on soft tissue engineering, it will discuss the types of biomaterial scaffolds available before exploring physical, chemical and biological modifications to synthetic scaffolds. We will consider how these properties, in combination, can provide a precise design process, with the potential to meet the requirements of the injured and diseased soft tissue niche. Finally, we frame our discussions within clinical trial design and the regulatory framework, the consideration of which is fundamental to the successful translation of new biomaterials.
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Affiliation(s)
- Mathew Baldwin
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah Snelling
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Stephanie Dakin
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Andrew Carr
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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25
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Przykaza K, Woźniak K, Jurak M, Wiącek AE. Characteristics of Polypeptide/Phospholipid Monolayers on Water and the Plasma‐Activated Polyetheretherketone Support. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kacper Przykaza
- Department of Physical Chemistry‐Interfacial Phenomena, Faculty of ChemistryUniversity of Maria Curie‐Skłodowska Maria Curie‐Skłodowska Sq. 3, 20031 Lublin Poland
| | - Klaudia Woźniak
- Department of Physical Chemistry‐Interfacial Phenomena, Faculty of ChemistryUniversity of Maria Curie‐Skłodowska Maria Curie‐Skłodowska Sq. 3, 20031 Lublin Poland
| | - Małgorzata Jurak
- Department of Physical Chemistry‐Interfacial Phenomena, Faculty of ChemistryUniversity of Maria Curie‐Skłodowska Maria Curie‐Skłodowska Sq. 3, 20031 Lublin Poland
| | - Agnieszka Ewa Wiącek
- Department of Physical Chemistry‐Interfacial Phenomena, Faculty of ChemistryUniversity of Maria Curie‐Skłodowska Maria Curie‐Skłodowska Sq. 3, 20031 Lublin Poland
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26
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Lee D, Park K, Yoon GJ, Lee HJ, Lee J, Park YS, Park J, Lee G, Chung CP, Park YJ. Identification of cell‐penetrating osteogenic peptide from copine‐7 protein and its delivery system for enhanced bone formation. J Biomed Mater Res A 2019; 107:2392-2402. [DOI: 10.1002/jbm.a.36746] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/09/2019] [Accepted: 06/03/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Dongwoo Lee
- Department of Oral BiochemistryDental Regenerative Bioengineering Major and Dental Research Institute, School of Dentistry, Seoul National University Seoul Republic of Korea
- Central Research Institute, Nano Intelligent Biomedical Engineering Corporation (NIBEC) Seoul Republic of Korea
| | - Kwang‐Sook Park
- Department of Oral BiochemistryDental Regenerative Bioengineering Major and Dental Research Institute, School of Dentistry, Seoul National University Seoul Republic of Korea
| | - Gook Jin Yoon
- Department of Oral BiochemistryDental Regenerative Bioengineering Major and Dental Research Institute, School of Dentistry, Seoul National University Seoul Republic of Korea
| | - Hyun Jung Lee
- Department of Oral BiochemistryDental Regenerative Bioengineering Major and Dental Research Institute, School of Dentistry, Seoul National University Seoul Republic of Korea
| | - Jue‐Yeon Lee
- Central Research Institute, Nano Intelligent Biomedical Engineering Corporation (NIBEC) Seoul Republic of Korea
| | - Yoon Shin Park
- Major in MicrobiologySchool of Biological Sciences, College of Natural Sciences, Chungbuk National University Cheongju Republic of Korea
| | - Joo‐Cheol Park
- Department of Oral Histology‐Developmental Biology and Dental Research InstituteSchool of Dentistry, Seoul National University Seoul Republic of Korea
| | - Gene Lee
- Department of Oral BiochemistryDental Regenerative Bioengineering Major and Dental Research Institute, School of Dentistry, Seoul National University Seoul Republic of Korea
| | - Chong Pyoung Chung
- Central Research Institute, Nano Intelligent Biomedical Engineering Corporation (NIBEC) Seoul Republic of Korea
| | - Yoon Jeong Park
- Department of Oral BiochemistryDental Regenerative Bioengineering Major and Dental Research Institute, School of Dentistry, Seoul National University Seoul Republic of Korea
- Central Research Institute, Nano Intelligent Biomedical Engineering Corporation (NIBEC) Seoul Republic of Korea
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27
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Properties of the Langmuir and Langmuir–Blodgett monolayers of cholesterol-cyclosporine A on water and polymer support. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00117-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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28
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Yao X, Liu R, Liang X, Ding J. Critical Areas of Proliferation of Single Cells on Micropatterned Surfaces and Corresponding Cell Type Dependence. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15366-15380. [PMID: 30964630 DOI: 10.1021/acsami.9b03780] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Material cues to influence cell proliferation are a fundamental issue in the fields of biomaterials, cell biology, tissue engineering, and regenerative medicine. This paper aims to investigate the proliferation of single mammal cells on micropatterned material surfaces. To this end, we prepared cell-adhesive circular microislands with 20 areas on the nonfouling background and systematically examined adhesion and proliferation behaviors of different kinds of single cells (primary stem and nonstem cells, cancer and normal cell lines) on micropatterns. On the basis of the analysis of experimental data, we found two critical areas about cell proliferation: (1) the critical spreading area of cells from almost no proliferation to confined proliferation, denoted as AP and (2) the critical spreading area of cells from confined proliferation to almost free proliferation, denoted as AFP. We further summarized the relative size relationship between these two critical areas and the characteristic areas of cell adhesion on both patterned and nonpatterned surfaces. While proliferation of single primary cells was affected by cell spreading, those cell lines, irrespective of normal and cancer cells, did not exhibit significant cell-spreading effects. As a result, this study reveals that proliferation of single cells is dependent upon spreading area, in particular for primary cells on material surfaces.
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Affiliation(s)
- Xiang Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , People's Republic of China
| | - Ruili Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , People's Republic of China
| | - Xiangyu Liang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , People's Republic of China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , People's Republic of China
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29
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Abstract
Natural cyclic peptides are conformationally constrained notable biomolecules and reveal several drug-like properties such as high binding affinity, metabolic stability, target selectivity, bioavailability, low toxicity and flexibility. They have attracted a lot of attention as alternative sources of new drugs to traditional small molecules in drug discovery. Compared to classical medicines, cyclic peptides with a novel mechanism of action are attractive for their potential therapeutic applications particularly for cancer therapy and several diseases caused by resistant and non-resistant bacteria, virus, and fungi. Herein, we provide an overview of the naturally occurring biologically active cyclic peptide therapeutic landscape, including promising candidates, which are under trial in different stages for future and/or clinically used drugs against different diseases. This will certainly be an essential resource for upcoming and existing researchers and scientists within industry and academia in medicinal, bioorganic, and natural product chemistry.
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Affiliation(s)
- Smritilekha Bera
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar - 382030, India
| | - Dhananjoy Mondal
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar - 382030, India
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30
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Yan Y, Cheng B, Chen K, Cui W, Qi J, Li X, Deng L. Enhanced Osteogenesis of Bone Marrow-Derived Mesenchymal Stem Cells by a Functionalized Silk Fibroin Hydrogel for Bone Defect Repair. Adv Healthc Mater 2019; 8:e1801043. [PMID: 30485718 DOI: 10.1002/adhm.201801043] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/05/2018] [Indexed: 12/25/2022]
Abstract
Silk fibroin (SF) from Bombyx mori is a promising natural material for the synthesis of biocompatible and biodegradable hydrogels for use in biomedical applications from tissue engineering to drug delivery. However, weak gelation performance and the lack of biochemical cues to trigger cell proliferation and differentiation currently significantly limit its application in these areas. Herein, a biofunctional hydrogel containing SF (2.0%) and a small peptide gelator (e.g., NapFFRGD = 1.0 wt%) is generated via cooperative molecular self-assembly. The introduction of NapFFRGD to SF is shown to significantly improve its gelation properties by lowering both its threshold gelation concentration to 2.0% and gelation time to 20 min under physiological conditions (pH = 7.4, 37 °C), as well as functionalizing the SF hydrogel with cell-adhesive motifs (e.g., RGD). Besides mediating cell adhesion, the RGD ligands incorporated within the SF-RGD gel promote the osteogenic differentiation of bone marrow-derived mesenchymal stem cells encapsulated within the gel matrix, leading to bone regeneration in a mouse calvarial defect model, compared with a blank SF gel (2.0%, pH = 7.4). This work suggests that SF could be easily tailored with bioactive peptide gelators to afford bioactive hydrogels with favorable microenvironments for tissue regeneration applications.
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Affiliation(s)
- Yufei Yan
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Baochang Cheng
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Kaizhe Chen
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Wenguo Cui
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Jin Qi
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Xinming Li
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Lianfu Deng
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
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31
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Duque-Sanchez L, Brack N, Postma A, Meagher L, Pigram PJ. Engineering the Biointerface of Electrospun 3D Scaffolds with Functionalized Polymer Brushes for Enhanced Cell Binding. Biomacromolecules 2018; 20:813-825. [DOI: 10.1021/acs.biomac.8b01427] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Lina Duque-Sanchez
- Centre for Materials and Surface Science and Department of Chemistry and Physics, La Trobe University, Melbourne, Victoria 3086, Australia
- CSIRO Manufacturing, Bayview Avenue, Clayton, Vic 3168, Australia
| | - Narelle Brack
- Centre for Materials and Surface Science and Department of Chemistry and Physics, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Almar Postma
- CSIRO Manufacturing, Bayview Avenue, Clayton, Vic 3168, Australia
| | - Laurence Meagher
- Monash Institute of Medical Engineering and Department of Materials Science and Engineering, Monash University, Clayton, Vic 3800, Australia
| | - Paul J. Pigram
- Centre for Materials and Surface Science and Department of Chemistry and Physics, La Trobe University, Melbourne, Victoria 3086, Australia
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32
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Abstract
The conjugation of biomolecules can impart materials with the bioactivity necessary to modulate specific cell behaviors. While the biological roles of particular polypeptide, oligonucleotide, and glycan structures have been extensively reviewed, along with the influence of attachment on material structure and function, the key role played by the conjugation strategy in determining activity is often overlooked. In this review, we focus on the chemistry of biomolecule conjugation and provide a comprehensive overview of the key strategies for achieving controlled biomaterial functionalization. No universal method exists to provide optimal attachment, and here we will discuss both the relative advantages and disadvantages of each technique. In doing so, we highlight the importance of carefully considering the impact and suitability of a particular technique during biomaterial design.
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Affiliation(s)
- Christopher D. Spicer
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
| | - E. Thomas Pashuck
- NJ
Centre for Biomaterials, Rutgers University, 145 Bevier Road, Piscataway, New Jersey United States
| | - Molly M. Stevens
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, Exhibition Road, London, United Kingdom
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33
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Karel S, Sogorkova J, Hermannova M, Nesporova K, Marholdova L, Chmelickova K, Bednarova L, Flegel M, Drasar P, Velebny V. Stabilization of hyaluronan-based materials by peptide conjugation and its use as a cell-seeded scaffold in tissue engineering. Carbohydr Polym 2018; 201:300-307. [PMID: 30241822 DOI: 10.1016/j.carbpol.2018.08.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 01/07/2023]
Abstract
New materials based on molecules naturally occurred in body are assumed to be fully biocompatible and biodegradable. In our study, we used hyaluronic acid (HA) modified with peptides, which meet all this criterion and could be advantageously used in tissue engineering. Peptides with RGD, IKVAV or SIKVAV adhesive motif were attached to HA-based fiber or non-woven textile through ester bond in the term of solid phase peptide synthesis. A linker between HA and peptide containing three glycine or two 6-aminohexanoyl units was applied to make peptides more available for cell surface receptors. Dermal fibroblasts adhered readily on this material, preferentially to RGD peptide with 6-aminohexanoyl linker. Contrary, the absence of adhesive peptide did not allow the cell attachment but maintained the material stability.
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Affiliation(s)
- Sergej Karel
- Contipro a. s., Dolni Dobrouc 401, CZ-561 02 Dolni Dobrouc, Czech Republic; Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ-166 10 Prague, Czech Republic.
| | - Jana Sogorkova
- Contipro a. s., Dolni Dobrouc 401, CZ-561 02 Dolni Dobrouc, Czech Republic
| | - Martina Hermannova
- Contipro a. s., Dolni Dobrouc 401, CZ-561 02 Dolni Dobrouc, Czech Republic
| | - Kristina Nesporova
- Contipro a. s., Dolni Dobrouc 401, CZ-561 02 Dolni Dobrouc, Czech Republic
| | - Lucie Marholdova
- Contipro a. s., Dolni Dobrouc 401, CZ-561 02 Dolni Dobrouc, Czech Republic
| | | | - Lucie Bednarova
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ-166 10 Prague, Czech Republic
| | - Martin Flegel
- University of Chemistry and Technology, Department of Chemistry of Natural Compounds, CZ-166 28 Prague, Czech Republic
| | - Pavel Drasar
- University of Chemistry and Technology, Department of Chemistry of Natural Compounds, CZ-166 28 Prague, Czech Republic
| | - Vladimir Velebny
- Contipro a. s., Dolni Dobrouc 401, CZ-561 02 Dolni Dobrouc, Czech Republic
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34
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Holik HA, Uehara T, Nemoto S, Rokugawa T, Tomizawa Y, Sakuma A, Mizuno Y, Suzuki H, Arano Y. Coordination-Mediated Synthesis of 67Ga-Labeled Purification-Free Trivalent Probes for in Vivo Imaging of Saturable Systems. Bioconjug Chem 2018; 29:2909-2919. [DOI: 10.1021/acs.bioconjchem.8b00337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Holis A. Holik
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang KM 21, Sumedang 46363, Indonesia
| | - Tomoya Uehara
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Soki Nemoto
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Takemi Rokugawa
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Yuumi Tomizawa
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Ayako Sakuma
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Yuki Mizuno
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Laboratory of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Hiroyuki Suzuki
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Yasushi Arano
- Laboratory of Molecular Imaging and Radiotherapy, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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35
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Chen H, Xu Z, Fan F, Shi P, Tu M, Wang Z, Du M. Identification and mechanism evaluation of a novel osteogenesis promoting peptide from Tubulin Alpha-1C chain in Crassostrea gigas. Food Chem 2018; 272:751-757. [PMID: 30309606 DOI: 10.1016/j.foodchem.2018.07.063] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 07/07/2018] [Accepted: 07/11/2018] [Indexed: 02/06/2023]
Abstract
Marine shellfish provides a series of biofunctionality account of its high-protein level. In this study, the osteogenic effect of a novel peptide, YRGDVVPK, from Crassostrea gigas protein hydrolysates on preosteoblast MC3T3-E1 proliferation was examined. Synthetic peptide with 100 nM significantly promoted the proliferation of MC3T3-E1 cells for a treatment of 72 h assayed by MTT method, and which was confirmed by the increase of alkaline phosphatase (ALP) activity. The peptide, YRGDVVPK, was docked with integrin α5β1 (PDB ID: 3VI4), which is a surface receptor of MC3T3-E1. The interaction of the peptide with integrin α5β1 (PDB ID: 3VI4) was analyzed by the molecular modeling algorithm of CDOCKER, which showed a more stable combination than the original ligand. The results suggested the novel peptide could promote the preosteoblast MC3T3-E1 proliferation probably by activating the signaling pathway of MAPK, which is induced through binding with peptide YRGDVVPK.
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Affiliation(s)
- Hui Chen
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Zhe Xu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Fengjiao Fan
- Department of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
| | - Pujie Shi
- Department of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
| | - Maolin Tu
- Department of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
| | - Zhenyu Wang
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Ming Du
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
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36
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Chahal AS, Schweikle M, Heyward CA, Tiainen H. Attachment and spatial organisation of human mesenchymal stem cells on poly(ethylene glycol) hydrogels. J Mech Behav Biomed Mater 2018; 84:46-53. [PMID: 29734041 DOI: 10.1016/j.jmbbm.2018.04.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/18/2018] [Accepted: 04/30/2018] [Indexed: 12/14/2022]
Abstract
Strategies that enable hydrogel substrates to support cell attachment typically incorporate either entire extracellular matrix proteins or synthetic peptide fragments such as the RGD (arginine-glycine-aspartic acid) motif. Previous studies have carefully analysed how material characteristics can affect single cell morphologies. However, the influence of substrate stiffness and ligand presentation on the spatial organisation of human mesenchymal stem cells (hMSCs) have not yet been examined. In this study, we assessed how hMSCs organise themselves on soft (E = 7.4-11.2 kPa) and stiff (E = 27.3-36.8 kPa) poly(ethylene glycol) (PEG) hydrogels with varying concentrations of RGD (0.05-2.5 mM). Our results indicate that hMSCs seeded on soft hydrogels clustered with reduced cell attachment and spreading area, irrespective of RGD concentration and isoform. On stiff hydrogels, in contrast, cells spread with high spatial coverage for RGD concentrations of 0.5 mM or higher. In conclusion, we identified that an interplay of hydrogel stiffness and the availability of cell attachment motifs are important factors in regulating hMSC organisation on PEG hydrogels. Understanding how cells initially interact and colonise the surface of this material is a fundamental prerequisite for the design of controlled platforms for tissue engineering and mechanobiology studies.
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Affiliation(s)
- Aman S Chahal
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Norway
| | - Manuel Schweikle
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Norway
| | - Catherine A Heyward
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Norway
| | - Hanna Tiainen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Norway.
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37
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Green H, Ochbaum G, Gitelman-Povimonsky A, Bitton R, Rapaport H. RGD-presenting peptides in amphiphilic and anionic β-sheet hydrogels for improved interactions with cells. RSC Adv 2018; 8:10072-10080. [PMID: 35540811 PMCID: PMC9078708 DOI: 10.1039/c7ra12503h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/27/2018] [Indexed: 11/21/2022] Open
Abstract
The interest in developing functional biomaterials based on designed peptides has been increasing in recent years. The amphiphilic and anionic β-sheet peptide Pro-Asp-(Phe-Asp)5-Pro, denoted FD, was previously shown to assemble into a hydrogel that induces adsorption of calcium and phosphate ions and formation of the bone mineral hydroxyapatite. In this study the integrin binding peptide, Arg-Gly-Asp (RGD), was incorporated into the hydrogel to assess its influence on an osteoblast culture. In solutions and in hydrogels FD fibrils dominated the assembly structures for up to 25 mol% FD-RGD incorporation. The cellular density of osteoblasts cultured in hydrogels composed of 25 mol% FD-RGD in FD was higher than that of only FD hydrogel cultures. These results demonstrate that RGD and possibly other cell binding motifs can be combined into amphiphilic and anionic β-sheet hydrogels, using the design principles of FD and FD-RGD systems, to enhance interactions with cells.
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Affiliation(s)
- Hodaya Green
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Guy Ochbaum
- Department of Chemical Engineering, Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Anna Gitelman-Povimonsky
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Ronit Bitton
- Department of Chemical Engineering, Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Hanna Rapaport
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
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Taira Y, Uehara T, Tsuchiya M, Takemori H, Mizuno Y, Takahashi S, Suzuki H, Hanaoka H, Akizawa H, Arano Y. Coordination-Mediated Synthesis of Purification-Free Bivalent 99mTc-Labeled Probes for in Vivo Imaging of Saturable System. Bioconjug Chem 2018; 29:459-466. [PMID: 29320158 DOI: 10.1021/acs.bioconjchem.7b00788] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the synthesis of technetium-99m (99mTc) labeled target-specific ligands, the presence of a large excess of unlabeled ligands over 99mTc in the injectate hinders target accumulation of 99mTc-labeled ligands by competing for target molecules. To circumvent the problem, we recently developed a concept of the metal coordination-mediated multivalency, and proved the concept with a 99mTc-labeled trivalent compound [99mTc(CO)3(CN-RGD)3]+. In this study, D-penicillamine (Pen) was selected as a chelating molecule and a cyclic RGDfK peptide was conjugated to Pen via a hexanoic linkage (Pen-Ahx-c(RGDfK)). 99mTc complexation reaction, and the stability, integrin αvβ3 binding affinity, and biodistribution of the 99mTc-labeled probe were investigated to evaluate the applicability of the concept to bivalent probes. 99mTc-[Pen-Ahx-c(RGDfK)]2 was obtained over 95% radiochemical yields under low Pen-Ahx-c(RGDfK) concentration (50 μM). 99mTc-[Pen-Ahx-c(RGDfK)]2 showed approximately 10-times higher integrin αvβ3 binding affinity than the monovalent compounds, Pen-Ahx-c(RGDfK) and c(RGDyV). In biodistribution studies, the tumor accumulation of 99mTc-[Pen-Ahx-c(RGDfK)]2 was decreased to 77% and 43% of HPLC-purified (Pen-Ahx-c(RGDfK)-free) 99mTc-[Pen-Ahx-c(RGDfK)]2 by the presence of 5 nmol of unlabeled Pen-Ahx-c(RGDfK) and Re-[Pen-Ahx-c(RGDfK)]2, respectively. 99mTc-[Pen-Ahx-c(RGDfK)]2 provided tumor image without removing unlabeled ligand, while a 99mTc-labeled monovalent probe prepared from a monovalent ligand could not. These findings indicate the availability of the design concept to prepare 99mTc-labeled bivalent probes with a variety of 99mTc core and other metallic radionuclides of clinical relevance.
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Affiliation(s)
- Yuichiro Taira
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
| | - Tomoya Uehara
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
| | - Masao Tsuchiya
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
| | - Hideaki Takemori
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
| | - Yuki Mizuno
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan.,Showa Pharmaceutical University , Machida, 194-8543, Japan
| | - Shiori Takahashi
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
| | - Hiroyuki Suzuki
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
| | - Hirofumi Hanaoka
- Graduate School of Medicine, Gunma University , Maebashi, 371-8511, Japan
| | | | - Yasushi Arano
- Graduate School of Pharmaceutical Sciences, Chiba University , Chiba, 260-8675, Japan
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Long-Term Maintenance of Human Pluripotent Stem Cells on cRGDfK-Presenting Synthetic Surfaces. Sci Rep 2018; 8:701. [PMID: 29335618 PMCID: PMC5768753 DOI: 10.1038/s41598-018-19209-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 12/27/2017] [Indexed: 12/12/2022] Open
Abstract
Synthetic human pluripotent stem cell (hPSC) culture surfaces with defined physical and chemical properties will facilitate improved research and therapeutic applications of hPSCs. In this study, synthetic surfaces for hPSC culture in E8 medium were produced for screening by modifying two polymer brush coatings [poly(acrylamide-co-acrylic acid) (PAAA) and poly(acrylamide-co-propargyl acrylamide) (PAPA)] to present single peptides. Adhesion of hPSC colonies was more consistently observed on surfaces modified with cRGDfK compared to surfaces modified with other peptide sequences tested. PAPA-coated polystyrene flasks with coupled cRGDfK (cRGDfK-PAPA) were then used for long-term studies of three hPSC lines (H9, hiPS-NHF1.3, Genea-02). Cell lines maintained for ten passages on cRGDfK-PAPA were assessed for colony morphology, proliferation rate, maintenance of OCT4 expression, cell viability at harvest, teratoma formation potential, and global gene expression as assessed by the PluriTest™ assay. cRGDfK-PAPA and control cultures maintained on Geltrex™ produced comparable results in most assays. No karyotypic abnormalities were detected in cultures maintained on cRGDfK-PAPA, while abnormalities were detected in cultures maintained on Geltrex™, StemAdhere™ or Synthemax™. This is the first report of long term maintenance of hPSC cultures on the scalable, stable, and cost-effective cRGDfK-PAPA coating.
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Sondermeijer HP, Witkowski P, Seki T, van der Laarse A, Itescu S, Hardy MA. RGDfK-Peptide Modified Alginate Scaffold for Cell Transplantation and Cardiac Neovascularization. Tissue Eng Part A 2017; 24:740-751. [PMID: 28938862 DOI: 10.1089/ten.tea.2017.0221] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cell implantation for tissue repair is a promising new therapeutic strategy. Although direct injection of cells into tissue is appealing, cell viability and retention are not very good. Cell engraftment and survival following implantation are dependent on a sufficient supply of oxygen and nutrients through functional microcirculation as well as a suitable local microenvironment for implanted cells. In this study, we describe the development of a porous, biocompatible, three-dimensional (3D) alginate scaffold covalently modified with the synthetic cyclic RGDfK (Arg-Gly-Asp-D-Phe-Lys) peptide. Cyclic RGDfK peptide is protease resistant, highly stable in aqueous solutions, and has high affinity for cellular integrins. Cyclic RGDfK-modified alginate scaffolds were generated using a novel silicone sheet sandwich technique in combination with freeze-gelation, resulting in highly porous nonimmunogenic scaffolds that promoted both human and rodent cell survival in vitro, and neoangiogenesis in vivo. Two months following implantation in abdominal rectus muscles in rats, cyclic RGDfK-modified scaffolds were fully populated by host cells, especially microvasculature without an overt immune response or fibrosis, whereas unmodified control scaffolds did not show cell ingrowth. Importantly, modified scaffolds that were seeded with human mesenchymal precursor cells and were patched to the epicardial surface of infarcted myocardium induced myocardial neoangiogenesis and significantly improved cardiac function. In summary, purified cyclic RGDfK peptide-modified 3D alginate scaffolds are biocompatible and nonimmunogenic, enhance cell viability, promote angiogenesis, and may be used as a means to deliver cells to myocardial infarct areas to improve neovascularization and cardiac function.
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Affiliation(s)
- Hugo P Sondermeijer
- 1 Department of Surgery, Columbia University Medical Center , New York, New York.,2 Department of Medicine, Columbia University Medical Center , New York, New York.,3 Department of Physiology, Maastricht University Medical Center , Maastricht, The Netherlands
| | - Piotr Witkowski
- 4 Section of Transplantation, Department of Surgery, University of Chicago , Chicago, Illinois
| | - Tetsunori Seki
- 1 Department of Surgery, Columbia University Medical Center , New York, New York.,2 Department of Medicine, Columbia University Medical Center , New York, New York
| | - Arnoud van der Laarse
- 5 Department of Cardiology and Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center , Leiden, The Netherlands
| | - Silviu Itescu
- 1 Department of Surgery, Columbia University Medical Center , New York, New York.,2 Department of Medicine, Columbia University Medical Center , New York, New York.,6 Mesoblast Limited, Melbourne, Australia
| | - Mark A Hardy
- 1 Department of Surgery, Columbia University Medical Center , New York, New York
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Thrivikraman G, Athirasala A, Twohig C, Boda SK, Bertassoni LE. Biomaterials for Craniofacial Bone Regeneration. Dent Clin North Am 2017; 61:835-856. [PMID: 28886771 PMCID: PMC5663293 DOI: 10.1016/j.cden.2017.06.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Functional reconstruction of craniofacial defects is a major clinical challenge in craniofacial sciences. The advent of biomaterials is a potential alternative to standard autologous/allogenic grafting procedures to achieve clinically successful bone regeneration. This article discusses various classes of biomaterials currently used in craniofacial reconstruction. Also reviewed are clinical applications of biomaterials as delivery agents for sustained release of stem cells, genes, and growth factors. Recent promising advancements in 3D printing and bioprinting techniques that seem to be promising for future clinical treatments for craniofacial reconstruction are covered. Relevant topics in the bone regeneration literature exemplifying the potential of biomaterials to repair bone defects are highlighted.
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Affiliation(s)
- Greeshma Thrivikraman
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, OHSU School of Dentistry, 2730 SW Moody Avenue, Portland, OR 97201, USA
| | - Avathamsa Athirasala
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, OHSU School of Dentistry, 2730 SW Moody Avenue, Portland, OR 97201, USA
| | - Chelsea Twohig
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, OHSU School of Dentistry, 2730 SW Moody Avenue, Portland, OR 97201, USA
| | - Sunil Kumar Boda
- Mary and Dick Holland Regenerative Medicine Program, Department of Surgery-Transplant, University of Nebraska Medical Center, Omaha, NE 68198-5965, USA
| | - Luiz E Bertassoni
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, OHSU School of Dentistry, 2730 SW Moody Avenue, Portland, OR 97201, USA; Department of Biomedical Engineering, OHSU School of Medicine, 3303 SW Bond Avenue, Portland, OR 97239, USA; OHSU Center for Regenerative Medicine, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
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42
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Ramaraju H, Miller SJ, Kohn DH. Dual-functioning peptides discovered by phage display increase the magnitude and specificity of BMSC attachment to mineralized biomaterials. Biomaterials 2017; 134:1-12. [PMID: 28453953 DOI: 10.1016/j.biomaterials.2017.04.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 04/17/2017] [Indexed: 02/09/2023]
Abstract
Design of biomaterials for cell-based therapies requires presentation of specific physical and chemical cues to cells, analogous to cues provided by native extracellular matrices (ECM). We previously identified a peptide sequence with high affinity towards apatite (VTKHLNQISQSY, VTK) using phage display. The aims of this study were to identify a human MSC-specific peptide sequence through phage display, combine it with the apatite-specific sequence, and verify the specificity of the combined dual-functioning peptide to both apatite and human bone marrow stromal cells. In this study, a combinatorial phage display identified the cell binding sequence (DPIYALSWSGMA, DPI) which was combined with the mineral binding sequence to generate the dual peptide DPI-VTK. DPI-VTK demonstrated significantly greater binding affinity (1/KD) to apatite surfaces compared to VTK, phosphorylated VTK (VTKphos), DPI-VTKphos, RGD-VTK, and peptide-free apatite surfaces (p < 0.01), while significantly increasing hBMSC adhesion strength (τ50, p < 0.01). MSCs demonstrated significantly greater adhesion strength to DPI-VTK compared to other cell types, while attachment of MC3T3 pre-osteoblasts and murine fibroblasts was limited (p < 0.01). MSCs on DPI-VTK coated surfaces also demonstrated increased spreading compared to pre-osteoblasts and fibroblasts. MSCs cultured on DPI-VTK coated apatite films exhibited significantly greater proliferation compared to controls (p < 0.001). Moreover, early and late stage osteogenic differentiation markers were elevated on DPI-VTK coated apatite films compared to controls. Taken together, phage display can identify non-obvious cell and material specific peptides to increase human MSC adhesion strength to specific biomaterial surfaces and subsequently increase cell proliferation and differentiation. These new peptides expand biomaterial design methodology for cell-based regeneration of bone defects. This strategy of combining cell and material binding phage display derived peptides is broadly applicable to a variety of systems requiring targeted adhesion of specific cell populations, and may be generalized to the engineering of any adhesion surface.
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Affiliation(s)
- Harsha Ramaraju
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Sharon J Miller
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - David H Kohn
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA; Department of Biologic and Material Sciences, University of Michigan, Ann Arbor, MI, USA.
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43
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Wang H, Li Q, Wang Q, Zhang H, Shi W, Gan H, Song H, Wang Z. Enhanced repair of segmental bone defects in rabbit radius by porous tantalum scaffolds modified with the RGD peptide. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:50. [PMID: 28197822 DOI: 10.1007/s10856-017-5860-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 01/30/2017] [Indexed: 06/06/2023]
Abstract
Fast and stable repair of segmental bone defects remains a challenge for clinical orthopedic surgery. In recent years, porous tantalum has been widely applied in clinical orthopedics for low modulus of elasticity, with three-dimensional microstructures similar to cancellous bone and excellent biocompatibility. To further improve bone the repairing ability of porous tantalum, the cyclo(-RGDfK-) peptide was coated on the surface of porous tantalum scaffolds. A model of 15 mm segmental defect was made at the midshaft of right radius in New Zealand White rabbits. In the experimental group, defects were implanted (press-fit) using porous tantalum scaffolds modified with cyclo(-RGDfK-) peptide. Control animals were implanted with non-modified porous tantalum scaffolds or xenogeneic cancellous bone scaffolds, respectively. No implant was provided for the blank group. Bone repair was assessed by X-ray and histological observations at 4, 8, and 16 weeks post-operation, with biomechanical tests and micro-computed tomography performed at 16 weeks post-surgery. The results showed that bone formation was increased at the interface and inside the inner pores of modified porous tantalum scaffolds than those of non-modified porous tantalum scaffolds; biomechanical properties in the modified porous tantalum group were superior to those of the non-modified porous tantalum and xenogeneic cancellous bone groups, while new bone volume fractions using micro-computed tomography analysis were similar between the modified porous tantalum and xenogeneic cancellous bone groups. Our findings suggested that modified porous tantalum scaffolds had enhanced repairing ability in segmental bone defect in rabbit radius, and may serve as a potential material for repairing large bone defects.
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Affiliation(s)
- Hui Wang
- Hand Surgery Department, Tangshan orthopaedic hospital affiliated, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Qijia Li
- Experimental Center, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Qian Wang
- Department of Anatomy, Basic Medical College, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Hui Zhang
- Department of Joint Surgery, Tangshan orthopaedic hospital affiliated, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Wei Shi
- Department of Orthopaedics, Affiliated Hospital, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Hongquan Gan
- Department of Orthopaedics, Affiliated Hospital, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Huiping Song
- Department of Orthopaedics, Affiliated Hospital, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China
| | - Zhiqiang Wang
- Department of Orthopaedics, Affiliated Hospital, North China University of Science and Technology, Tangshan, Hebei, 063000, P.R. China.
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Kapp TG, Rechenmacher F, Neubauer S, Maltsev OV, Cavalcanti-Adam EA, Zarka R, Reuning U, Notni J, Wester HJ, Mas-Moruno C, Spatz J, Geiger B, Kessler H. A Comprehensive Evaluation of the Activity and Selectivity Profile of Ligands for RGD-binding Integrins. Sci Rep 2017; 7:39805. [PMID: 28074920 PMCID: PMC5225454 DOI: 10.1038/srep39805] [Citation(s) in RCA: 380] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 11/25/2016] [Indexed: 12/12/2022] Open
Abstract
Integrins, a diverse class of heterodimeric cell surface receptors, are key regulators of cell structure and behaviour, affecting cell morphology, proliferation, survival and differentiation. Consequently, mutations in specific integrins, or their deregulated expression, are associated with a variety of diseases. In the last decades, many integrin-specific ligands have been developed and used for modulation of integrin function in medical as well as biophysical studies. The IC50-values reported for these ligands strongly vary and are measured using different cell-based and cell-free systems. A systematic comparison of these values is of high importance for selecting the optimal ligands for given applications. In this study, we evaluate a wide range of ligands for their binding affinity towards the RGD-binding integrins αvβ3, αvβ5, αvβ6, αvβ8, α5β1, αIIbβ3, using homogenous ELISA-like solid phase binding assay.
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Affiliation(s)
- Tobias G Kapp
- Institute for Advanced Study and Center for Integrated Protein Science, Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Florian Rechenmacher
- Institute for Advanced Study and Center for Integrated Protein Science, Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Stefanie Neubauer
- Institute for Advanced Study and Center for Integrated Protein Science, Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Oleg V Maltsev
- Institute for Advanced Study and Center for Integrated Protein Science, Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Elisabetta A Cavalcanti-Adam
- Max-Planck-Institute for Medical Research, Department of Biointerface Science and Technology, Heidelberg, Postal address: Heisenbergstr. 3, 70 569 Stuttgart, Germany
| | - Revital Zarka
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Ute Reuning
- Clinical Research Unit, Department of Obstetrics &Gynecology, Technische Universität München, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Johannes Notni
- Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany
| | - Hans-Jürgen Wester
- Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany
| | - Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, and Centre for Research in NanoEngineering (CRNE), Technical University of Catalonia, 08028-Barcelona, Spain
| | - Joachim Spatz
- Max-Planck-Institute for Medical Research, Department of Biointerface Science and Technology, Heidelberg, Postal address: Heisenbergstr. 3, 70 569 Stuttgart, Germany
| | - Benjamin Geiger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Horst Kessler
- Institute for Advanced Study and Center for Integrated Protein Science, Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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Kadem LF, Suana KG, Holz M, Wang W, Westerhaus H, Herges R, Selhuber‐Unkel C. High-Frequency Mechanostimulation of Cell Adhesion. Angew Chem Int Ed Engl 2017; 56:225-229. [PMID: 27900823 PMCID: PMC6680150 DOI: 10.1002/anie.201609483] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Indexed: 12/28/2022]
Abstract
Cell adhesion is regulated by molecularly defined protein interactions and by mechanical forces, which can activate a dynamic restructuring of adhesion sites. Previous attempts to explore the response of cell adhesion to forces have been limited to applying mechanical stimuli that involve the cytoskeleton. In contrast, we here apply a new, oscillatory type of stimulus through push-pull azobenzenes. Push-pull azobenzenes perform a high-frequency, molecular oscillation upon irradiation with visible light that has frequently been applied in polymer surface relief grating. We here use these oscillations to address single adhesion receptors. The effect of molecular oscillatory forces on cell adhesion has been analyzed using single-cell force spectroscopy and gene expression studies. Our experiments demonstrate a reinforcement of cell adhesion as well as upregulated expression levels of adhesion-associated genes as a result of the nanoscale "tickling" of integrins. This novel type of mechanical stimulus provides a previously unprecedented molecular control of cellular mechanosensing.
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Affiliation(s)
- Laith F. Kadem
- Institute of Materials ScienceUniversity of KielKaiserstr. 224143KielGermany
| | - K. Grace Suana
- Otto-Diels-Institute of Organic ChemistryUniversity of KielOtto-Hahn-Platz 4KielGermany
| | - Michelle Holz
- Otto-Diels-Institute of Organic ChemistryUniversity of KielOtto-Hahn-Platz 4KielGermany
| | - Wei Wang
- Institute of Materials ScienceUniversity of KielKaiserstr. 224143KielGermany
- High Magnetic Field LaboratoryChinese Academy of Sciences230031Hefei, AnhuiChina
| | - Hannes Westerhaus
- Institute of Materials ScienceUniversity of KielKaiserstr. 224143KielGermany
| | - Rainer Herges
- Otto-Diels-Institute of Organic ChemistryUniversity of KielOtto-Hahn-Platz 4KielGermany
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Jie W, Song F, Li X, Li W, Wang R, Jiang Y, Zhao L, Fan Z, Wang J, Liu B. Enhancing the proliferation of MC3T3-E1 cells on casein phosphopeptide-biofunctionalized 3D reduced-graphene oxide/polypyrrole scaffolds. RSC Adv 2017. [DOI: 10.1039/c7ra02146a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The CPP-biofunctionalized 3D rGO/PPY scaffold can greatly boost the proliferation and differentiation of MC3T3-E1 cells, especially the 3D rGO/PPY/CPP20 scaffold.
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Affiliation(s)
- Weibo Jie
- Key Laboratory of Mechanics on Disaster and Environment in Western China
- The Ministry of Education
- College of Civil Engineering and Mechanics
- Lanzhou University
- Lanzhou 730000
| | - Fuxiang Song
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
- Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
| | - Xiaocheng Li
- Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou
- China
| | - Wen Li
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
| | - Rui Wang
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
| | - Yanjiao Jiang
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
| | - Libo Zhao
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
| | - Zengjie Fan
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
| | - Jizeng Wang
- Key Laboratory of Mechanics on Disaster and Environment in Western China
- The Ministry of Education
- College of Civil Engineering and Mechanics
- Lanzhou University
- Lanzhou 730000
| | - Bin Liu
- School of Stomatology of Lanzhou University
- Lanzhou 730000
- China
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47
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Kadem LF, Suana KG, Holz M, Wang W, Westerhaus H, Herges R, Selhuber‐Unkel C. High‐Frequency Mechanostimulation of Cell Adhesion. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609483] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Laith F. Kadem
- Institute of Materials Science University of Kiel Kaiserstr. 2 24143 Kiel Germany
| | - K. Grace Suana
- Otto-Diels-Institute of Organic Chemistry University of Kiel Otto-Hahn-Platz 4 Kiel Germany
| | - Michelle Holz
- Otto-Diels-Institute of Organic Chemistry University of Kiel Otto-Hahn-Platz 4 Kiel Germany
| | - Wei Wang
- Institute of Materials Science University of Kiel Kaiserstr. 2 24143 Kiel Germany
- High Magnetic Field Laboratory Chinese Academy of Sciences 230031 Hefei, Anhui China
| | - Hannes Westerhaus
- Institute of Materials Science University of Kiel Kaiserstr. 2 24143 Kiel Germany
| | - Rainer Herges
- Otto-Diels-Institute of Organic Chemistry University of Kiel Otto-Hahn-Platz 4 Kiel Germany
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Clements LE, Garvican ER, Dudhia J, Smith RKW. Modulation of mesenchymal stem cell genotype and phenotype by extracellular matrix proteins. Connect Tissue Res 2016; 57:443-453. [PMID: 27448620 DOI: 10.1080/03008207.2016.1215442] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AIM To investigate the effect of extracellular matrix (ECM) proteins on characteristics of mesenchymal stem cells (MSCs) and tendon-derived cells (TDCs). MATERIALS AND METHODS MSCs and TDCs, cultured in a monolayer (2D) or hydrogels (3D), with or without ECM protein supplementation, and on a non-viable native tendon (NNT) matrix were assayed for adhesion, proliferation, gene expression, and integrin expression. RESULTS MSCs exhibited a fibroblastic, spindle-shaped morphology on 2D matrices except in the presence of fibronectin. In 3D matrices, MSCs displayed a rounded phenotype except when cultured on NNTs where cells aligned along the collagen fibrils but, unlike TDCs, did not form inter-cellular cytoplasmic processes. MSC proliferation was significantly (p < 0.01) increased by collagen type I in 2D culture and fibronectin in 3D culture. TDC proliferation was unaffected by substrata. MSCs and TDCs differentially expressed α2 integrin. Adhesion to substrata was reduced by RGD-blocking peptide and β1 integrin antibody. The presence of collagen I or fibronectin upregulated MSC expression of collagen type I and collagen type III, COMP, decorin, osteopontin, and fibronectin. CONCLUSIONS The morphology, gene expression, and adhesion of both MSCs and TDCs are sensitive to the presence of specific ECM components. Interaction with the ECM is, therefore, likely to affect the mechanism of action of MSCs in vitro and may contribute to phenotypic modulation in vivo.
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Affiliation(s)
- Lucy E Clements
- a Department Clinical Sciences and Services , Royal Veterinary College , Hatfield , UK
| | - Elaine R Garvican
- a Department Clinical Sciences and Services , Royal Veterinary College , Hatfield , UK
| | - Jayesh Dudhia
- a Department Clinical Sciences and Services , Royal Veterinary College , Hatfield , UK
| | - Roger K W Smith
- a Department Clinical Sciences and Services , Royal Veterinary College , Hatfield , UK
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Ozcelik B, Chen R, Glattauer V, Kumar N, Willcox M, Thissen H. Crosslinked Platform Coatings Incorporating Bioactive Signals for the Control of Biointerfacial Interactions. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/01/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Berkay Ozcelik
- Commonwealth Scientific and Industrial Research Organisation (CSIRO); Clayton VIC 3168 Australia
| | - Renxun Chen
- School of Chemistry; University of New South Wales; Sydney NSW 2052 Australia
| | - Veronica Glattauer
- Commonwealth Scientific and Industrial Research Organisation (CSIRO); Clayton VIC 3168 Australia
| | - Naresh Kumar
- School of Chemistry; University of New South Wales; Sydney NSW 2052 Australia
| | - MarkD.P. Willcox
- School of Optometry and Vision Science; University of New South Wales; Sydney NSW 2052 Australia
| | - Helmut Thissen
- Commonwealth Scientific and Industrial Research Organisation (CSIRO); Clayton VIC 3168 Australia
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Sallouh M, Jarocki M, Sallouh O, Degen P, Faissner A, Weberskirch R. The Synergistic Effect of Cationic Moieties and GRGDSF-Peptides in Hydrogels on Neural Stem Cell Behavior. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/27/2016] [Indexed: 01/11/2023]
Affiliation(s)
- Muhammad Sallouh
- Faculty of Chemistry and Chemical Biology; Otto-Hahn Str. 6, TU Dortmund 44227 Dortmund Germany
| | - Marvin Jarocki
- Department of Cell Morphology and Molecular Neurobiology; Ruhr-University Bochum; 44801 Bochum Germany
| | - Omar Sallouh
- Faculty of Chemistry and Chemical Biology; Otto-Hahn Str. 6, TU Dortmund 44227 Dortmund Germany
| | - Patrick Degen
- Dortmunder Elektronenspeicherringanlage (DELTA); Maria-Goeppert-Meyer Str. 2, TU Dortmund 44227 Dortmund Germany
| | - Andreas Faissner
- Department of Cell Morphology and Molecular Neurobiology; Ruhr-University Bochum; 44801 Bochum Germany
| | - Ralf Weberskirch
- Faculty of Chemistry and Chemical Biology; Otto-Hahn Str. 6, TU Dortmund 44227 Dortmund Germany
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