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Asadian M, Tomasina C, Onyshchenko Y, Chan KV, Norouzi M, Zonderland J, Camarero-Espinosa S, Morent R, De Geyter N, Moroni L. The role of plasma-induced surface chemistry on polycaprolactone nanofibers to direct chondrogenic differentiation of human mesenchymal stem cells. J Biomed Mater Res A 2024; 112:210-230. [PMID: 37706337 DOI: 10.1002/jbm.a.37607] [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: 03/27/2023] [Revised: 08/12/2023] [Accepted: 08/24/2023] [Indexed: 09/15/2023]
Abstract
Bone marrow-derived mesenchymal stromal cells (BMSCs) are extensively being utilized for cartilage regeneration owing to their excellent differentiation potential and availability. However, controlled differentiation of BMSCs towards cartilaginous phenotypes to heal full-thickness cartilage defects remains challenging. This study investigates how different surface properties induced by either coating deposition or biomolecules immobilization onto nanofibers (NFs) could affect BMSCs chondro-inductive behavior. Accordingly, electrospun poly(ε-caprolactone) (PCL) NFs were exposed to two surface modification strategies based on medium-pressure plasma technology. The first strategy is plasma polymerization, in which cyclopropylamine (CPA) or acrylic acid (AcAc) monomers were plasma polymerized to obtain amine- or carboxylic acid-rich NFs, respectively. The second strategy uses a combination of CPA plasma polymerization and a post-chemical technique to immobilize chondroitin sulfate (CS) onto the NFs. These modifications could affect surface roughness, hydrophilicity, and chemical composition while preserving the NFs' nano-morphology. The results of long-term BMSCs culture in both basic and chondrogenic media proved that the surface modifications modulated BMSCs chondrogenic differentiation. Indeed, the incorporation of polar groups by different modification strategies had a positive impact on the cell proliferation rate, production of the glycosaminoglycan matrix, and expression of extracellular matrix proteins (collagen I and collagen II). The chondro-inductive behavior of the samples was highly dependent on the nature of the introduced polar functional groups. Among all samples, carboxylic acid-rich NFs promoted chondrogenesis by higher expression of aggrecan, Sox9, and collagen II with downregulation of hypertrophic markers. Hence, this approach showed an intrinsic potential to have a non-hypertrophic chondrogenic cell phenotype.
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Affiliation(s)
- Mahtab Asadian
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Ghent, Belgium
- Prometheus Division of Skeletal Tissue Engineering, Department of Materials Science, KU Leuven University, Leuven, Belgium
| | - Clarissa Tomasina
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
| | - Yuliia Onyshchenko
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Ghent, Belgium
| | - Ke Vin Chan
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Ghent, Belgium
| | - Mohammad Norouzi
- Department of Pharmacology, University of Montreal, Montreal, Québec, Canada
| | - Jip Zonderland
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
| | - Sandra Camarero-Espinosa
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
- POLYMAT University of the Basque Country UPV/EHU Avenida Tolosa 72, Donostia/San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Euskadi Pl. 5, Bilbao, Spain
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Ghent, Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Ghent University, Ghent, Belgium
| | - Lorenzo Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
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Bi S, Lin H, Zhu K, Zhu Z, Zhang W, Yang X, Chen S, Zhao J, Liu M, Pan P, Liang G. Chitosan-salvianolic acid B coating on the surface of nickel-titanium alloy inhibits proliferation of smooth muscle cells and promote endothelialization. Front Bioeng Biotechnol 2023; 11:1300336. [PMID: 38026871 PMCID: PMC10679528 DOI: 10.3389/fbioe.2023.1300336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 11/01/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction: Intracranial stents are of paramount importance in managing cerebrovascular disorders. Nevertheless, the currently employed drug-eluting stents, although effective in decreasing in-stent restenosis, might impede the re-endothelialization process within blood vessels, potentially leading to prolonged thrombosis development and restenosis over time. Methods: This study aims to construct a multifunctional bioactive coating to enhance the biocompatibility of the stents. Salvianolic acid B (SALB), a bioactive compound extracted from Salvia miltiorrhiza, exhibits potential for improving cardiovascular health. We utilized dopamine as the base and adhered chitosan-coated SALB microspheres onto nickel-titanium alloy flat plates, resulting in a multifunctional drug coating. Results: By encapsulating SALB within chitosan, the release period of SALB was effectively prolonged, as evidenced by the in vitro drug release curve showing sustained release over 28 days. The interaction between the drug coating and blood was examined through experiments on water contact angle, clotting time, and protein adsorption. Cellular experiments showed that the drug coating stimulates the proliferation, adhesion, and migration of human umbilical vein endothelial cells. Discussion: These findings indicate its potential to promote re-endothelialization. In addition, the bioactive coating effectively suppressed smooth muscle cells proliferation, adhesion, and migration, potentially reducing the occurrence of neointimal hyperplasia and restenosis. These findings emphasize the exceptional biocompatibility of the newly developed bioactive coating and demonstrate its potential clinical application as an innovative strategy to improve stent therapy efficacy. Thus, this coating holds great promise for the treatment of cerebrovascular disease.
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Affiliation(s)
- Shijun Bi
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
- Graduate School, Dalian Medical University, Dalian, China
| | - Hao Lin
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Kunyuan Zhu
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
- Graduate School, China Medical University, Shenyang, China
| | - Zechao Zhu
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Wenxu Zhang
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Xinyu Yang
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Shanshan Chen
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Jing Zhao
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Meixia Liu
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Pengyu Pan
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Guobiao Liang
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
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Seemann S, Dubs M, Koczan D, Salapare HS, Ponche A, Pieuchot L, Petithory T, Wartenberg A, Staehlke S, Schnabelrauch M, Anselme K, Nebe JB. Response of Osteoblasts on Amine-Based Nanocoatings Correlates with the Amino Group Density. Molecules 2023; 28:6505. [PMID: 37764281 PMCID: PMC10534789 DOI: 10.3390/molecules28186505] [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: 07/28/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Increased life expectancy in industrialized countries is causing an increased incidence of osteoporosis and the need for bioactive bone implants. The integration of implants can be improved physically, but mainly by chemical modifications of the material surface. It was recognized that amino-group-containing coatings improved cell attachment and intracellular signaling. The aim of this study was to determine the role of the amino group density in this positive cell behavior by developing controlled amino-rich nanolayers. This work used covalent grafting of polymer-based nanocoatings with different amino group densities. Titanium coated with the positively-charged trimethoxysilylpropyl modified poly(ethyleneimine) (Ti-TMS-PEI), which mostly improved cell area after 30 min, possessed the highest amino group density with an N/C of 32%. Interestingly, changes in adhesion-related genes on Ti-TMS-PEI could be seen after 4 h. The mRNA microarray data showed a premature transition of the MG-63 cells into the beginning differentiation phase after 24 h indicating Ti-TMS-PEI as a supportive factor for osseointegration. This amino-rich nanolayer also induced higher bovine serum albumin protein adsorption and caused the cells to migrate slower on the surface after a more extended period of cell settlement as an indication of a better surface anchorage. In conclusion, the cell spreading on amine-based nanocoatings correlated well with the amino group density (N/C).
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Affiliation(s)
- Susanne Seemann
- Institute for Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany (J.B.N.)
| | - Manuela Dubs
- Department of Biomaterials, INNOVENT e.V., 07745 Jena, Germany; (M.D.); (A.W.); (M.S.)
| | - Dirk Koczan
- Department of Immunology, Rostock University Medical Center, 18057 Rostock, Germany;
| | - Hernando S. Salapare
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, Université de Haute-Alsace, UMR 7361, 68100 Mulhouse, France (A.P.); (L.P.); (T.P.); (K.A.)
| | - Arnaud Ponche
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, Université de Haute-Alsace, UMR 7361, 68100 Mulhouse, France (A.P.); (L.P.); (T.P.); (K.A.)
| | - Laurent Pieuchot
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, Université de Haute-Alsace, UMR 7361, 68100 Mulhouse, France (A.P.); (L.P.); (T.P.); (K.A.)
| | - Tatiana Petithory
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, Université de Haute-Alsace, UMR 7361, 68100 Mulhouse, France (A.P.); (L.P.); (T.P.); (K.A.)
| | - Annika Wartenberg
- Department of Biomaterials, INNOVENT e.V., 07745 Jena, Germany; (M.D.); (A.W.); (M.S.)
| | - Susanne Staehlke
- Institute for Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany (J.B.N.)
| | | | - Karine Anselme
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, Université de Haute-Alsace, UMR 7361, 68100 Mulhouse, France (A.P.); (L.P.); (T.P.); (K.A.)
| | - J. Barbara Nebe
- Institute for Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany (J.B.N.)
- Department Life, Light & Matter, Interdisciplinary Faculty, University of Rostock, 18059 Rostock, Germany
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Yadav TC, Bachhuka A. Tuning foreign body response with tailor-engineered nanoscale surface modifications: fundamentals to clinical applications. J Mater Chem B 2023; 11:7834-7854. [PMID: 37528807 DOI: 10.1039/d3tb01040f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Biomaterials are omnipresent in today's healthcare services and are employed in various applications, including implants, sensors, healthcare accessories, and drug delivery systems. Unfavorable host immunological responses frequently jeopardize the efficacy of biomaterials. As a result, surface modification has received much attention in controlling inflammatory responses since it helps camouflage the biomaterial from the host immune system, influencing the foreign body response (FBR) from protein adsorption to fibrous capsule formation. Surfaces with controlled nanotopography and chemistry, among other surface modification methodologies, have effectively altered the immune response to biomaterials. However, the field is still in its early stages, with only a few studies showing a synergistic effect of surface chemistry and nanotopography on inflammatory and wound healing pathways. Therefore, this review will concentrate on the individual and synergistic effects of surface chemistry and nanotopography on FBR modulation and the molecular processes known to modulate these responses. This review will also provide insights into crucial research gaps and advancements in various tactics for modulating FBR, opening new paths for future research. This will further aid in improving our understanding of the immune response to biomaterials, developing advanced surface modification techniques, designing immunomodulatory biomaterials, and translating discoveries into clinical applications.
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Affiliation(s)
- Tara Chand Yadav
- Department of Bioinformatics, Faculty of Engineering & Technology, Marwadi University, Gujarat, 360003, India
- Department of Electronics, Electric, and Automatic Engineering, Rovira I Virgili University (URV), Tarragona, 43003, Spain.
| | - Akash Bachhuka
- Department of Electronics, Electric, and Automatic Engineering, Rovira I Virgili University (URV), Tarragona, 43003, Spain.
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Tang C, Dang Z, Lu T, Ye J. A novel anti-washout curing solution of calcium phosphate cement prepared via irradiation polymerization. J Mater Chem B 2023; 11:7410-7423. [PMID: 37431779 DOI: 10.1039/d3tb00544e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
The anti-washout ability of calcium phosphate cement (CPC) determines its effectiveness in clinical application. In the current research, the common method for improving the anti-washout ability of CPC is to add anti-washout polymer agents. Sodium polyacrylate powder is an excellent anti-washout agent but when bonded with CPC it basically degrades the anti-washout performance of CPC after γ-ray irradiation, and is widely used in the sterilization process of CPC products. Therefore, we propose a method for the preparation of a sodium polyacrylate solution through irradiation polymerization as curing solution for CPC. This method first uses γ-ray irradiation sterilization to improve the anti-washout ability of CPC directly. It not only avoids the adverse effects of γ-rays on anti-washout agents, but also the CPC blended using this sodium polyacrylate solution had good biological properties and injectability. It provides a new method for promoting the anti-washout properties of calcium phosphate cement, which is of great significance for expanding the clinical application of CPC.
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Affiliation(s)
- Chenyu Tang
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou 510641, China.
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Zhaohui Dang
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou 510641, China.
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Teliang Lu
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou 510641, China.
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Jiandong Ye
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, Guangzhou 510641, China.
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510641, China
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6
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Song Q, Zhu M, Shi Y, Smay J, Mao Y. Surface Tailoring of 3D Scaffolds to Promote Osteogenic Differentiation. ACS APPLIED BIO MATERIALS 2023; 6:891-898. [PMID: 36749952 DOI: 10.1021/acsabm.2c01036] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Customized bone scaffolds with osteogenic activities are desired for the regenerative repair of large-scale or irregularly shaped bone defects. This study developed a facile method to create osteogenic surfaces on three-dimensional (3D) printed scaffolds through coating-induced mineralization. The coating was synthesized using chemical vapor deposition of a polyelectrolyte containing oppositely charged groups. The opposite charges on the 3D scaffold played a crucial role in promoting the formation of nanoapatites without agglomeration, resulting in the retention of micro- and nanoscale pore openings needed for preosteoblasts to proliferate, differentiate, and migrate. The nanoapatite scaffold exhibited significant enhancement in osteoinductivity with a 107% increase in alkaline phosphatase expression and a 163% increase in osteocalcin activity compared to the pristine scaffold. The nanoapatite scaffold provided cues for preosteoblasts to grow along aligned features and migrate collectively. The findings of this study demonstrate the synergistic effect of oppositely charged polyelectrolytes and mineralized nanoapatites on promoting osteogenic activities on scaffold surfaces.
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Affiliation(s)
- Qing Song
- Department of Biosystems Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Mengfan Zhu
- Department of Biosystems Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Yang Shi
- Department of Materials Science and Engineering, Oklahoma State University, Tulsa, Oklahoma 74106, United States
| | - James Smay
- Department of Materials Science and Engineering, Oklahoma State University, Tulsa, Oklahoma 74106, United States
| | - Yu Mao
- Department of Biosystems Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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Nellinger S, Kluger PJ. How Mechanical and Physicochemical Material Characteristics Influence Adipose-Derived Stem Cell Fate. Int J Mol Sci 2023; 24:ijms24043551. [PMID: 36834966 PMCID: PMC9961531 DOI: 10.3390/ijms24043551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/28/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Adipose-derived stem cells (ASCs) are a subpopulation of mesenchymal stem cells. Compared to bone marrow-derived stem cells, they can be harvested with minimal invasiveness. ASCs can be easily expanded and were shown to be able to differentiate into several clinically relevant cell types. Therefore, this cell type represents a promising component in various tissue engineering and medical approaches (e.g., cell therapy). In vivo cells are surrounded by the extracellular matrix (ECM) that provides a wide range of tissue-specific physical and chemical cues, such as stiffness, topography, and chemical composition. Cells can sense the characteristics of their ECM and respond to them in a specific cellular behavior (e.g., proliferation or differentiation). Thus, in vitro biomaterial properties represent an important tool to control ASCs behavior. In this review, we give an overview of the current research in the mechanosensing of ASCs and current studies investigating the impact of material stiffens, topography, and chemical modification on ASC behavior. Additionally, we outline the use of natural ECM as a biomaterial and its interaction with ASCs regarding cellular behavior.
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Affiliation(s)
- Svenja Nellinger
- Reutlingen Research Institute, Reutlingen University, 72762 Reutlingen, Germany
| | - Petra Juliane Kluger
- School of Life Sciences, Reutlingen University, 72762 Reutlingen, Germany
- Correspondence: ; Tel.: +49-07121-271-2061
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8
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Flores‐Nava FG, Ramírez R, Olayo González MG, Colín‐Orozco E, Palacios González JC, Cruz GJ. Amined polyallylamine particles synthesized by plasma. J Appl Polym Sci 2023. [DOI: 10.1002/app.53604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Fernando G. Flores‐Nava
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
- Facultad de Ingeniería Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Mexico
| | - Rosario Ramírez
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
- Facultad de Ingeniería Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Mexico
| | - M. Guadalupe Olayo González
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
| | - Elena Colín‐Orozco
- Facultad de Ingeniería Universidad Autónoma del Estado de México, Cerro de Coatepec s/n, Ciudad Universitaria Toluca Mexico
| | | | - Guillermo J. Cruz
- Departamento de Física Instituto Nacional de Investigaciones Nucleares Carretera México‐Toluca S/N, La Marquesa Ocoyoacac Estado de México México
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Comprehensive Analysis of Novel Genes and Pathways Associated with Osteogenic Differentiation of Adipose Stem Cells. DISEASE MARKERS 2022; 2022:4870981. [PMID: 36133435 PMCID: PMC9484926 DOI: 10.1155/2022/4870981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/20/2022] [Indexed: 11/18/2022]
Abstract
Background. Adipose-derived stem cells (ADSCs) are an important alternative source of mesenchymal stem cells (MSCs) and show great promise in tissue engineering and regenerative medicine applications. However, identifying the novel genes and pathways and finding the underlying mechanisms regulating ADSCs osteogenic differentiation remain urgent. Methods. We downloaded the gene expression profiles of GSE63754 and GSE37329 from the Gene Expression Omnibus (GEO) Database. We derived differentially expressed genes (DEGs) before and after ADSC osteogenic differentiation, followed by Gene Ontology (GO) functional and KEGG pathway analysis and protein-protein interaction (PPI) network analysis. 211 differentially expressed genes (142 upregulated genes and 69 downregulated genes) were aberrantly expressed. GO analysis revealed that these DEGs were associated with extracellular matrix organization, protein extracellular matrix, and semaphorin receptor binding. Conclusions. Our study provides novel genes and pathways that play important roles in regulating ADSC osteogenic differentiation, which may have potential therapeutic targets for clinic.
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Poddar D, Jain P. Surface modification of three-dimensional porous polymeric scaffolds in tissue engineering applications: A focus review on physical modifications methods. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2061863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Deepak Poddar
- Department of Chemistry, Netaji Subhas University of Technology, New Delhi, India
| | - Purnima Jain
- Department of Chemistry, Netaji Subhas University of Technology, New Delhi, India
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Gulfam R, Chen Y. Recent Growth of Wettability Gradient Surfaces: A Review. Research (Wash D C) 2022; 2022:9873075. [PMID: 35935132 PMCID: PMC9327586 DOI: 10.34133/2022/9873075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/01/2022] [Indexed: 11/06/2022] Open
Abstract
This review reports the recent progress and future prospects of wettability gradient surfaces (WGSs), particularly focusing on the governing principles, fabrication methods, classification, characterization, and applications. While transforming the inherent wettability into artificial wettability via bioinspiration, topographic micro/nanostructures are produced with changed surface energy, resulting in new droplet wetting regimes and droplet dynamic regimes. WGSs have been mainly classified in dry and wet surfaces, depending on the apparent surface states. Wettability gradient has long been documented as a surface phenomenon inducing the droplet mobility in the direction of decreasing wettability. However, it is herein critically emphasized that the wettability gradient does not always result in droplet mobility. Indeed, the sticky and slippery dynamic regimes exist in WGSs, prohibiting or allowing the droplet mobility, respectively. Lastly, the stringent bottlenecks encountered by WGSs are highlighted along with solution-oriented recommendations, and furthermore, phase change materials are strongly anticipated as a new class in WGSs. In all, WGSs intend to open up new technological insights for applications, encompassing water harvesting, droplet and bubble manipulation, controllable microfluidic systems, and condensation heat transfer, among others.
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Affiliation(s)
- Raza Gulfam
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Yongping Chen
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
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12
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Kim HY, Kim BH, Kim MS. Amine Plasma-Polymerization of 3D Polycaprolactone/β-Tricalcium Phosphate Scaffold to Improving Osteogenic Differentiation In Vitro. MATERIALS 2022; 15:ma15010366. [PMID: 35009509 PMCID: PMC8745968 DOI: 10.3390/ma15010366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/20/2021] [Accepted: 01/02/2022] [Indexed: 01/19/2023]
Abstract
This study aims to investigate the surface characterization and pre-osteoblast biological behaviors on the three-dimensional (3D) poly(ε-caprolactone)/β-tricalcium phosphate (β-TCP) scaffold modified by amine plasma-polymerization. The 3D PCL scaffolds were fabricated using fused deposition modeling (FDM) 3D printing. To improve the pre-osteoblast bioactivity, the 3D PCL scaffold was modified by adding β-TCP nanoparticles, and then scaffold surfaces were modified by amine plasma-polymerization using monomer allylamine (AA) and 1,2-diaminocyclohexane (DACH). After the plasma-polymerization of PCL/β-TCP, surface characterizations such as contact angle, AFM, XRD, and FTIR were evaluated. In addition, mechanical strength was measured by UTM. The pre-osteoblast bioactivities were evaluated by focal adhesion and cell proliferation. Osteogenic differentiation was investigated by ALP activity, Alizarin red staining, and Western blot. Plasma-polymerization induced the increase in hydrophilicity of the surface of the 3D PCL/β-TCP scaffold due to the deposition of amine polymeric thin film on the scaffold surface. Focal adhesion and proliferation of pre-osteoblast improved, and osteogenic differentiation was increased. These results indicated that 3D PCL/β-TCP scaffolds treated with DACH plasma-polymerization showed the highest bioactivity compared to the other samples. We suggest that 3D PCL/β-TCP scaffolds treated with DACH and AA plasma-polymerization can be used as a promising candidate for osteoblast differentiation of pre-osteoblast.
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Affiliation(s)
- Hee-Yeon Kim
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Korea;
- Department of Dental Materials, College of Dentistry, Chosun University, Gwangju 61452, Korea
| | - Byung-Hoon Kim
- Department of Dental Materials, College of Dentistry, Chosun University, Gwangju 61452, Korea
- Correspondence: (B.-H.K.); (M.-S.K.); Tel.: +82-62-230-6447 (B.-H.K.); +82-62-227-1640 (M.-S.K.)
| | - Myung-Sun Kim
- Department of Orthopaedic Surgery, College of Medicine, Chonnam National University, Gwangju 61469, Korea
- Correspondence: (B.-H.K.); (M.-S.K.); Tel.: +82-62-230-6447 (B.-H.K.); +82-62-227-1640 (M.-S.K.)
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13
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Zhang ZQ, Yang YX, Li JA, Zeng RC, Guan SK. Advances in coatings on magnesium alloys for cardiovascular stents - A review. Bioact Mater 2021; 6:4729-4757. [PMID: 34136723 PMCID: PMC8166647 DOI: 10.1016/j.bioactmat.2021.04.044] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 12/15/2022] Open
Abstract
Magnesium (Mg) and its alloys, as potential biodegradable materials, have drawn wide attention in the cardiovascular stent field because of their appropriate mechanical properties and biocompatibility. Nevertheless, the occurrence of thrombosis, inflammation, and restenosis of implanted Mg alloy stents caused by their poor corrosion resistance and insufficient endothelialization restrains their anticipated clinical applications. Numerous surface treatment tactics have mainly striven to modify the Mg alloy for inhibiting its degradation rate and enduing it with biological functionality. This review focuses on highlighting and summarizing the latest research progress in functionalized coatings on Mg alloys for cardiovascular stents over the last decade, regarding preparation strategies for metal oxide, metal hydroxide, inorganic nonmetallic, polymer, and their composite coatings; and the performance of these strategies in regulating degradation behavior and biofunction. Potential research direction is also concisely discussed to help guide biological functionalized strategies and inspire further innovations. It is hoped that this review can give assistance to the surface modification of cardiovascular Mg-based stents and promote future advancements in this emerging research field.
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Affiliation(s)
- Zhao-Qi Zhang
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of Materials Processing and Mold Technology (Ministry of Education), Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Yong-Xin Yang
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of Materials Processing and Mold Technology (Ministry of Education), Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Jing-An Li
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of Materials Processing and Mold Technology (Ministry of Education), Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Rong-Chang Zeng
- Corrosion Laboratory for Light Metals, College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shao-Kang Guan
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of Materials Processing and Mold Technology (Ministry of Education), Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
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14
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Kodama J, Harumningtyas AA, Ito T, Michlíček M, Sugimoto S, Kita H, Chijimatsu R, Ukon Y, Kushioka J, Okada R, Kamatani T, Hashimoto K, Tateiwa D, Tsukazaki H, Nakagawa S, Takenaka S, Makino T, Sakai Y, Nečas D, Zajíčková L, Hamaguchi S, Kaito T. Amine modification of calcium phosphate by low-pressure plasma for bone regeneration. Sci Rep 2021; 11:17870. [PMID: 34504247 PMCID: PMC8429709 DOI: 10.1038/s41598-021-97460-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 08/26/2021] [Indexed: 11/30/2022] Open
Abstract
Regeneration of large bone defects caused by trauma or tumor resection remains one of the biggest challenges in orthopedic surgery. Because of the limited availability of autograft material, the use of artificial bone is prevalent; however, the primary role of currently available artificial bone is restricted to acting as a bone graft extender owing to the lack of osteogenic ability. To explore whether surface modification might enhance artificial bone functionality, in this study we applied low-pressure plasma technology as next-generation surface treatment and processing strategy to chemically (amine) modify the surface of beta-tricalcium phosphate (β-TCP) artificial bone using a CH4/N2/He gas mixture. Plasma-treated β-TCP exhibited significantly enhanced hydrophilicity, facilitating the deep infiltration of cells into interconnected porous β-TCP. Additionally, cell adhesion and osteogenic differentiation on the plasma-treated artificial bone surfaces were also enhanced. Furthermore, in a rat calvarial defect model, the plasma treatment afforded high bone regeneration capacity. Together, these results suggest that amine modification of artificial bone by plasma technology can provide a high osteogenic ability and represents a promising strategy for resolving current clinical limitations regarding the use of artificial bone.
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Affiliation(s)
- Joe Kodama
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Anjar Anggraini Harumningtyas
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Center for Accelerator Science and Technology, National Nuclear Energy Agency of Indonesia (BATAN), Jalan Babarsari Kotak Pos 6101 ykbb, Yogyakarta, 55281, Indonesia
| | - Tomoko Ito
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Miroslav Michlíček
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 61137, Brno, Czech Republic
| | - Satoshi Sugimoto
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hidekazu Kita
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryota Chijimatsu
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yuichiro Ukon
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Junichi Kushioka
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Rintaro Okada
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takashi Kamatani
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kunihiko Hashimoto
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Daisuke Tateiwa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroyuki Tsukazaki
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shinichi Nakagawa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shota Takenaka
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takahiro Makino
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yusuke Sakai
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - David Nečas
- CEITEC - Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno, 61200, Czech Republic
| | - Lenka Zajíčková
- CEITEC - Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno, 61200, Czech Republic.,Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlarska 2, Brno, 61137, Czech Republic
| | - Satoshi Hamaguchi
- Center for Atomic and Molecular Technologies (CAMT), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Takashi Kaito
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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15
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Amine-Rich Coatings to Potentially Promote Cell Adhesion, Proliferation and Differentiation, and Reduce Microbial Colonization: Strategies for Generation and Characterization. COATINGS 2021. [DOI: 10.3390/coatings11080983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Biomaterial surface modification represents an important approach to obtain a better integration of the material in surrounding tissues. Different techniques are focused on improving cell support as well as avoiding efficiently the development of infections, such as by modifying the biomaterial surface with amine groups (–NH2). Previous studies showed that –NH2 groups could promote cell adhesion and proliferation. Moreover, these chemical functionalities may be used to facilitate the attachment of molecules such as proteins or to endow antimicrobial properties. This mini-review gives an overview of different techniques which have been used to obtain amine-rich coatings such as plasma methods and adsorption of biomolecules. In fact, different plasma treatment methods are commonly used with ammonia gas or by polymerization of precursors such as allylamine, as well as coatings of proteins (for example, collagen) or polymers containing –NH2 groups (for example, polyethyleneimine). Moreover, this mini-review will present the methods used to characterize such coatings and, in particular, quantify the –NH2 groups present on the surface by using dyes or chemical derivatization methods.
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16
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Liu X, Wang Y, He Y, Wang X, Zhang R, Bachhuka A, Madathiparambil Visalakshan R, Feng Q, Vasilev K. Synergistic Effect of Surface Chemistry and Surface Topography Gradient on Osteogenic/Adipogenic Differentiation of hMSCs. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30306-30316. [PMID: 34156811 DOI: 10.1021/acsami.1c03915] [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] [Indexed: 06/13/2023]
Abstract
Much attention has been paid to understanding the individual effects of surface chemistry or topography on cell behavior. However, the synergistic influence of both surface chemistry and surface topography on differentiation of human mesenchymal stem cells (hMSCs) should also be addressed. Here, gold nanoparticles were immobilized in an increasing number density manner to achieve a surface topography gradient; a thin film rich in amine (-NH2) or methyl (-CH3) chemical groups was plasma-polymerized to adjust the surface chemistry of the outermost layer (ppAA and ppOD, respectively). hMSCs were cultured on these model substrates with defined surface chemistry and surface topography gradient. The morphology and focal adhesion (FA) formation of hMSCs were first examined. hMSC differentiation was then co-induced in osteogenic and adipogenic medium, as well as in the presence of extracellular-signal-regulated kinase1/2 (ERK1/2) and RhoA/Rho-associated protein kinase (ROCK) inhibitors. The results show that the introduction of nanotopography could enhance FA formation and osteogenesis but inhibited adipogenesis on both ppAA and ppOD surfaces, indicating that the surface chemistry could regulate hMSC differentiation, in a surface topography-dependent manner. RhoA/ROCK and ERK1/2 signaling pathways may participate in this process. This study demonstrated that surface chemistry and surface topography can jointly affect cell morphology, FA formation, and thus osteogenic/adipogenic differentiation of hMSCs. These findings highlight the importance of the synergistic effect of different material properties on regulation of cell response, which has important implications in designing functional biomaterials.
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Affiliation(s)
- Xujie Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yakun Wang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yan He
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaofeng Wang
- Department of Hand Surgery, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315040, China
| | - Ranran Zhang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Akash Bachhuka
- Unit of STEM, University of South Australia, Mawson Lakes 5095, Australia
| | | | - Qingling Feng
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Krasimir Vasilev
- Unit of STEM, University of South Australia, Mawson Lakes 5095, Australia
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17
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Zuo Y, Jiao Y, Ma C, Duan C. A Novel Fluorescent Probe for Hydrogen Peroxide and Its Application in Bio-Imaging. Molecules 2021; 26:3352. [PMID: 34199465 PMCID: PMC8199646 DOI: 10.3390/molecules26113352] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/23/2021] [Accepted: 05/28/2021] [Indexed: 01/31/2023] Open
Abstract
Hydrogen peroxide (H2O2) plays an important role in the human body and monitoring its level is meaningful due to the relationship between its level and diseases. A fluorescent sensor (CMB) based on coumarin was designed and its ability for detecting hydrogen peroxide by fluorescence signals was also studied. The CMB showed an approximate 25-fold fluorescence enhancement after adding H2O2 due to the interaction between the CMB and H2O2 and had the potential for detecting physiological H2O2. It also showed good biocompatibility and permeability, allowing it to penetrate cell membranes and zebrafish tissues, thus it can perform fluorescence imaging of H2O2 in living cells and zebrafish. This probe is a promising tool for monitoring the level of H2O2 in related physiological and pathological research.
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Affiliation(s)
| | - Yang Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China; (Y.Z.); (C.M.); (C.D.)
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18
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Abstract
BACKGROUND This manuscript is a review of the literature investigating the use of mesenchymal stem cells (MSCs) being applied in the setting of spinal fusion surgery. We mention the rates of pseudarthrosis, discuss current bone grafting options, and examine the preclinical and clinical outcomes of utilizing MSCs to assist in successfully fusing the spine. METHODS A thorough literature review was conducted to look at current and previous preclinical and clinical studies using stem cells for spinal fusion augmentation. Searches for PubMed/MEDLINE and ClinicalTrials.gov through January 2021 were conducted for literature mentioning stem cells and spinal fusion. RESULTS All preclinical and clinical studies investigating MSC use in spinal fusion were examined. We found 19 preclinical and 17 clinical studies. The majority of studies, both preclinical and clinical, were heterogeneous in design due to different osteoconductive scaffolds, cells, and techniques used. Preclinical studies showed promising outcomes in animal models when using appropriate osteoconductive scaffolds and factors for osteogenic differentiation. Similarly, clinical studies have promising outcomes but differ in their methodologies, surgical techniques, and materials used, making it difficult to adequately compare between the studies. CONCLUSION MSCs may be a promising option to use to augment grafting for spinal fusion surgery. MSCs must be used with appropriate osteoconductive scaffolds. Cell-based allografts and the optimization of their use have yet to be fully elucidated. Further studies are necessary to determine the efficacy of MSCs with different osteoconductive scaffolds and growth/osteogenic differentiation factors. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- Stephen R Stephan
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Linda E Kanim
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Hyun W Bae
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California.,Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California
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19
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Liu Z, Xiang C, Han M, Meng N, Luo J, Fu R. Study on Tim3 Regulation of Multiple Myeloma Cell Proliferation via NF-κB Signal Pathways. Front Oncol 2020; 10:584530. [PMID: 33330064 PMCID: PMC7710973 DOI: 10.3389/fonc.2020.584530] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/23/2020] [Indexed: 01/24/2023] Open
Abstract
Objective As an important negative regulatory factor of immunological cells, Tim3 plays a regulating role in tumor immune microenvironment. The purpose of this study was to investigate the expression of Tim3 on MM cells and its effect on the proliferation and apoptosis of MM cells, as well as its potential mechanism. Methods In this study, the expression of Tim3 was detected on myeloma cells (CD38+CD138+ cells) of bone marrow by flow cytometry (FCM) from 167 patients with MM and 51 healthy donors as controls and making correlation analysis with related clinical indexes. In vitro, MM cell lines (RPMI-8226 and U266) were treated with Tim3 knock-down alone, bortezomib alone and combination of Tim3 knock-down and bortezomib, then cell proliferation, cell apoptosis and downstream signaling pathway were detected by CCK-8, FCM, RT-PCR and western blot. Results The expression of Tim3 on myeloma cells in MM patients was significantly higher than normal control group and positively correlated with β2 microglobulin, creatine, and plasma cells of bone marrow, negatively correlated with hemoglobin and red blood cells. In vitro, we validated the high expression of Tim3 in RPMI-8226 and U266 cell lines. After Tim3 knock-down, the cell proliferation was inhibited and cell apoptosis was induced, the relative mRNA and protein expression of Tim3 and NF-κB signal pathway (PI3K, AKT, mTOR, NF-κB) were significantly decreased. Also, the cell proliferation was inhibited, cell apoptosis was increased, the relative mRNA and protein expression of NF-κB were decreased significantly in combination group than bortezomib or Tim3 knock-down group. Conclusions The high expression of Tim3 on MM cells is associated with progression of MM patients. Tim3 maybe regulate the proliferation of MM cells via NF-κB signal pathway. Down-regulation of Tim3 expression can inhibit proliferation and induce apoptosis of MM cells, also has an additive inhibitory effect of bortezomib on NF-κB signaling pathway, then inhibit proliferation and induce apoptosis. Therefore, Tim3 may be a potential target for the treatment of MM.
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Affiliation(s)
- Zhaoyun Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Chenhuan Xiang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Mei Han
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Nanhao Meng
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jingyi Luo
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Rong Fu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
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20
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Yan L, Wang H, Xu H, Zheng R, Shen Z. Epidermal stimulating factors-gelatin/polycaprolactone coaxial electrospun nanofiber: ideal nanoscale material for dermal substitute. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 32:60-75. [PMID: 32896222 DOI: 10.1080/09205063.2020.1816110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In this study, an ideal nano-scale material, named epidermal stimulating (ES) factors-gelatin/polycaprolactone (GT/PCL) nanofiber, was fabricated using a coaxial electrospinning technique. The ES-GT/PCL nanofibers possessed a highly porous structure with qualified mechanical properties for transplantation. With ES factors stored in the core and GT/PCL in the shell, the ES factors could be protected and released in a sustained manner. After seeding L929 cell line on ES-GT/PCL nanofibers for 7 days in vitro, the proliferation of cells was nearly 1.5 folds compared to the control group. The in vivo study showed that ES-GT/PCL nanofibers can accelerate skin wound healing rate during the healing course, especially on the early stage. The epidermal and dermal thickness, as well as skin appendages and fat tissue, were the most similar to the native skin. These findings provided valuable insights into the addition of multiple bioactive factors to nanometre biomaterials, and optimising the advantages of the compositions as a promising potential dermal substitute construct.
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Affiliation(s)
- Li Yan
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Haoyu Wang
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Hui Xu
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Rui Zheng
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Zhengyu Shen
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
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21
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Rohr N, Fricke K, Bergemann C, Nebe JB, Fischer J. Efficacy of Plasma-Polymerized Allylamine Coating of Zirconia after Five Years. J Clin Med 2020; 9:jcm9092776. [PMID: 32867239 PMCID: PMC7565740 DOI: 10.3390/jcm9092776] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 12/19/2022] Open
Abstract
Plasma-polymerized allylamine (PPAAm) coatings of titanium enhance the cell behavior of osteoblasts. The purpose of the present study was to evaluate a PPAAm nanolayer on zirconia after a storage period of 5 years. Zirconia specimens were directly coated with PPAAm (ZA0) or stored in aseptic packages at room temperature for 5 years (ZA5). Uncoated zirconia specimens (Zmt) and the micro-structured endosseous surface of a zirconia implant (Z14) served as controls. The elemental compositions of the PPAAm coatings were characterized and the viability, spreading and gene expression of human osteoblastic cells (MG-63) were assessed. The presence of amino groups in the PPAAm layer was significantly decreased after 5 years due to oxidation processes. Cell viability after 24 h was significantly higher on uncoated specimens (Zmt) than on all other surfaces. Cell spreading after 20 min was significantly higher for Zmt = ZA0 > ZA5 > Z14, while, after 24 h, spreading also varied significantly between Zmt > ZA0 > ZA5 > Z14. The expression of the mRNA differentiation markers collagen I and osteocalcin was upregulated on untreated surfaces Z14 and Zmt when compared to the PPAAm specimens. Due to the high biocompatibility of zirconia itself, a PPAAm coating may not additionally improve cell behavior.
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Affiliation(s)
- Nadja Rohr
- Biomaterials and Technology, Department of Reconstructive Dentistry, University Center for Dental Medicine, University of Basel, 4058 Basel, Switzerland;
- Department of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany; (C.B.); (J.B.N.)
- Correspondence: ; Tel.: +41-612-672-799
| | - Katja Fricke
- Leibniz Institute for Plasma Science and Technology e.V. (INP), 17489 Greifswald, Germany;
| | - Claudia Bergemann
- Department of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany; (C.B.); (J.B.N.)
| | - J Barbara Nebe
- Department of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany; (C.B.); (J.B.N.)
| | - Jens Fischer
- Biomaterials and Technology, Department of Reconstructive Dentistry, University Center for Dental Medicine, University of Basel, 4058 Basel, Switzerland;
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22
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Vijayan VM, Tucker BS, Hwang PTJ, Bobba PS, Jun HW, Catledge SA, Vohra YK, Thomas V. Non-equilibrium organosilane plasma polymerization for modulating the surface of PTFE towards potential blood contact applications. J Mater Chem B 2020; 8:2814-2825. [PMID: 32163093 PMCID: PMC7453349 DOI: 10.1039/c9tb02757b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report a novel and facile organosilane plasma polymerization method designed to improve the surface characteristics of poly(tetrafluoroethylene) (PTFE). We hypothesized that the polymerized silane coating would provide an adhesive surface for endothelial cell proliferation due to a large number of surface hydroxyl groups, while the large polymer networks on the surface of PTFE would hinder platelet attachment. The plasma polymerized PTFE surfaces were then systematically characterized via different analytical techniques such as FTIR, XPS, XRD, Contact angle, and SEM. The key finding of the characterization is the time-dependent deposition of an organosilane layer on the surface of PTFE. This layer was found to provide favorable surface properties to PTFE such as a very high surface oxygen content, high hydrophilicity and improved surface mechanics. Additionally, in vitro cellular studies were conducted to determine the bio-interface properties of the plasma-treated and untreated PTFE. The important results of these experiments were rapid endothelial cell growth and decreased platelet attachment on the plasma-treated PTFE compared to untreated PTFE. Thus, this new surface modification technique could potentially address the current challenges associated with PTFE for blood contact applications, specifically poor endothelial cell growth and risk of thrombosis.
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Affiliation(s)
- Vineeth M Vijayan
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA. and Department of Material Science and Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Bernabe S Tucker
- Department of Material Science and Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Pratheek S Bobba
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Ho-Wook Jun
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Shane A Catledge
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Yogesh K Vohra
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Vinoy Thomas
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA. and Department of Material Science and Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
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23
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Jiao Y, Zhang L, Gao X, Si W, Duan C. A Cofactor-Substrate-Based Supramolecular Fluorescent Probe for the Ultrafast Detection of Nitroreductase under Hypoxic Conditions. Angew Chem Int Ed Engl 2020; 59:6021-6027. [PMID: 31845434 DOI: 10.1002/anie.201915040] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Indexed: 12/18/2022]
Abstract
Identifying the location and expression levels of enzymes under hypoxic conditions in cancer cells is vital in early-stage cancer diagnosis and monitoring. By encapsulating a fluorescent substrate, L-NO2 , within the NADH mimic-containing metal-organic capsule Zn-MPB, we developed a cofactor-substrate-based supramolecular luminescent probe for ultrafast detection of hypoxia-related enzymes in solution in vitro and in vivo. The host-guest structure fuses the coenzyme and substrate into one supramolecular probe to avoid control by NADH, switching the catalytic process of nitroreductase from a double-substrate mechanism to a single-substrate one. This probe promotes enzyme efficiency by altering the substrate catalytic process and enhances the electron transfer efficiency through an intra-molecular pathway with increased activity. The enzyme content and fluorescence intensity showed a linear relationship and equilibrium was obtained in seconds, showing potential for early tumor diagnosis, biomimetic catalysis, and prodrug activation.
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Affiliation(s)
- Yang Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian City, 116024, China
| | - Lei Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian City, 116024, China
| | - Xu Gao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian City, 116024, China
| | - Wen Si
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian City, 116024, China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian City, 116024, China
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24
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Jiao Y, Zhang L, Gao X, Si W, Duan C. A Cofactor‐Substrate‐Based Supramolecular Fluorescent Probe for the Ultrafast Detection of Nitroreductase under Hypoxic Conditions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yang Jiao
- State Key Laboratory of Fine ChemicalsDalian University of Technology Dalian City 116024 China
| | - Lei Zhang
- State Key Laboratory of Fine ChemicalsDalian University of Technology Dalian City 116024 China
| | - Xu Gao
- State Key Laboratory of Fine ChemicalsDalian University of Technology Dalian City 116024 China
| | - Wen Si
- State Key Laboratory of Fine ChemicalsDalian University of Technology Dalian City 116024 China
| | - Chunying Duan
- State Key Laboratory of Fine ChemicalsDalian University of Technology Dalian City 116024 China
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25
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Bachhuka A, Madathiparambil Visalakshan R, Law CS, Santos A, Ebendorff-Heidepriem H, Karnati S, Vasilev K. Modulation of Macrophages Differentiation by Nanoscale-Engineered Geometric and Chemical Features. ACS APPLIED BIO MATERIALS 2020; 3:1496-1505. [DOI: 10.1021/acsabm.9b01125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Bachhuka
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - R. Madathiparambil Visalakshan
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia
| | - C. S. Law
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
- School of Chemical Engineering, University of Adelaide, Engineering North Building, Adelaide, South Australia 5005, Australia
| | - A. Santos
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
- School of Chemical Engineering, University of Adelaide, Engineering North Building, Adelaide, South Australia 5005, Australia
| | - H. Ebendorff-Heidepriem
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - S. Karnati
- Institute for Anatomy and Cell Biology, Julius Maximilians University, Koellikerstrasse 6, Wuerzburg 97070, Germany
| | - K. Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia
- School of Engineering, University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia
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26
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Wang C, Cao G, Zhao T, Wang X, Niu X, Fan Y, Li X. Terminal Group Modification of Carbon Nanotubes Determines Covalently Bound Osteogenic Peptide Performance. ACS Biomater Sci Eng 2020; 6:865-878. [PMID: 33464866 DOI: 10.1021/acsbiomaterials.9b01501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Osteogenic peptides are often introduced to improve biological activities and the osteogenic ability of artificial bone materials as an effective approach. Covalent bindings between the peptide and the host material can increase the molecular interactions and make the functionalized surface more stable. However, covalent bindings through different functional groups can bring different effects on the overall bioactivities. In this study, carboxyl and amino groups were respectively introduced onto carbon nanotubes, a nanoreinforcement for synthetic scaffold materials, which were subsequently covalently attached to the RGD/BMP-2 osteogenic peptide. MC3T3-E1 cells were cultured on scaffolds containing peptide-modified carbon nanotubes. The results showed that the peptide through the amino group binding could promote cell functions more effectively than those through carboxyl groups. The mechanism may be that the amino group could bring more positive charges to carbon nanotube surfaces, which further led to differences in the peptide conformation, protein adsorption, and targeting osteogenic effects. Our results provided an effective way of improving the bioactivities of artificial bone materials by chemically binding osteogenic peptides.
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Affiliation(s)
- Cunyang Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
| | - Guangxiu Cao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
| | - Tianxiao Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xiumei Wang
- State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing 100084, China
| | - Xufeng Niu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
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27
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Sulfur and nitrogen containing plasma polymers reduces bacterial attachment and growth. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110225. [PMID: 31761201 DOI: 10.1016/j.msec.2019.110225] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 09/06/2019] [Accepted: 09/17/2019] [Indexed: 11/23/2022]
Abstract
Role of sulfur (S) and nitrogen (N) groups in promoting cell adhesion or commonly known as biocompatibility, is well established, but their role in reducing bacterial attachment and growth is less explored or not well-understood. Natural sulfur-based compounds, i.e. sulfide, sulfoxide and sulfinic groups, have shown to inhibit bacterial adhesion and biofilm formation. Hence, we mimicked these surfaces by plasma polymerizing thiophene (ppT) and air-plasma treating this ppT to achieve coatings with S of similar oxidation states as natural compounds (ppT-air). In addition, the effects of these N and S groups from ppT-air were also compared with the biocompatible amine-amide from n-heptylamine plasma polymer. Crystal violet assay and live and dead fluorescence staining of E. coli and S. aureus showed that all the N and S coated surfaces generated, including ppHA, ppT and ppT-air, produced similarly potent, growth reduction of both bacteria by approximately 65% at 72 h compared to untreated glass control. The ability of osteogenic differentiation in Wharton's jelly mesenchymal stem cells (WJ-MSCs) were also used to test the cell biocompatibility of these surfaces. Alkaline phosphatase assay and scanning electron microscopy imaging of these WJ-MSCs growths indicated that ppHA, and ppT-air were cell-friendly surfaces, with ppHA showing the highest osteogenic activity. In summary, the N and S containing surfaces could reduce bacteria growth while promoting mammalian cell growth, thus serve as potential candidate surfaces to be explored further for biomaterial applications.
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28
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Aidun A, Zamanian A, Ghorbani F. Immobilization of polyvinyl alcohol‐siloxane on the oxygen plasma‐modified polyurethane‐carbon nanotube composite matrix. J Appl Polym Sci 2019. [DOI: 10.1002/app.48477] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Amir Aidun
- National Cell Bank of IranPasteur Institute of Iran Tehran Iran
- Tissues and Biomaterials Research Group (TBRG)Universal Scientific Education and Research Network (USERN) Tehran Iran
| | - Ali Zamanian
- Biomaterials Research Group, Department of Nanotechnology and Advanced MaterialsMaterials and Energy Research Center Tehran Iran
| | - Farnaz Ghorbani
- Department of Orthopedics, Shanghai Pudong HospitalFudan University Pudong Medical Center Shanghai China
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29
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Biocompatibility of Cyclopropylamine-Based Plasma Polymers Deposited at Sub-Atmospheric Pressure on Poly (ε-caprolactone) Nanofiber Meshes. NANOMATERIALS 2019; 9:nano9091215. [PMID: 31466357 PMCID: PMC6780329 DOI: 10.3390/nano9091215] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/21/2019] [Accepted: 08/26/2019] [Indexed: 01/17/2023]
Abstract
In this work, cyclopropylamine (CPA) monomer was plasma-polymerized on poly (ε-caprolactone) nanofiber meshes using various deposition durations to obtain amine-rich surfaces in an effort to improve the cellular response of the meshes. Scanning electron microscopy and X-ray photoelectron spectroscopy (XPS) were used to investigate the surface morphology and surface chemical composition of the PCL samples, respectively. The measured coating thickness was found to linearly increase with deposition duration at a deposition rate of 0.465 nm/s. XPS analysis revealed that plasma exposure time had a considerable effect on the surface N/C and O/C ratio as well as on amino grafting efficiency and amino selectivity. In addition, cell studies showed that cell adhesion and proliferation significantly improved for all coated samples.
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30
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Van Guyse JFR, Cools P, Egghe T, Asadian M, Vergaelen M, Rigole P, Yan W, Benetti EM, Jerca VV, Declercq H, Coenye T, Morent R, Hoogenboom R, De Geyter N. Influence of the Aliphatic Side Chain on the Near Atmospheric Pressure Plasma Polymerization of 2-Alkyl-2-oxazolines for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:31356-31366. [PMID: 31381296 DOI: 10.1021/acsami.9b09999] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Plasma polymerization is gaining popularity as a technique for coating surfaces due to the low cost, ease of operation, and substrate-independent nature. Recently, the plasma polymerization (or deposition) of 2-oxazoline monomers was reported resulting in coatings that have potential applications in regenerative medicine. Despite the structural versatility of 2-oxazolines, only a few monomers have been subjected to plasma polymerization. Within this study, however, we explore the near atmospheric pressure plasma polymerization of a range of 2-oxazoline monomers, focusing on the influence of the aliphatic side-chain length (methyl to butyl) on the plasma polymerization process conditions as well as the properties of the obtained coatings. While side-chain length had only a minor influence on the chemical composition, clear effects on the plasma polymerization conditions were observed, thus gaining valuable insights in the plasma polymerization process as a function of monomer structure. Additionally, cytocompatibility and cell attachment on the coatings obtained by 2-oxazoline plasma polymerization was assessed. The coatings displayed strong cell interactive properties, whereby cytocompatibility increased with increasing aliphatic side-chain length of the monomer, reaching up to 93% cell viability after 1 day of cell culture compared to tissue culture plates. As this is in stark contrast to the antifouling behavior of the parent polymers, we compared the properties and composition of the plasma-polymerized coatings to the parent polymers revealing that a significantly different coating structure was obtained by plasma polymerization.
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Affiliation(s)
- Joachim F R Van Guyse
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences , Ghent University , Krijgslaan 281 S4 , 9000 Ghent , Belgium
| | - Pieter Cools
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture , Ghent University , Sint-Pietersnieuwstraat 41 B4 , 9000 Ghent , Belgium
| | - Tim Egghe
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences , Ghent University , Krijgslaan 281 S4 , 9000 Ghent , Belgium
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture , Ghent University , Sint-Pietersnieuwstraat 41 B4 , 9000 Ghent , Belgium
| | - Mahtab Asadian
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture , Ghent University , Sint-Pietersnieuwstraat 41 B4 , 9000 Ghent , Belgium
| | - Maarten Vergaelen
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences , Ghent University , Krijgslaan 281 S4 , 9000 Ghent , Belgium
| | - Petra Rigole
- Laboratory of Pharmaceutical Microbiology (LPM), Department of Pharmaceutical Analysis, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , 9000 Ghent , Belgium
| | - Wenqing Yan
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , CH-8093 Zurich , Switzerland
| | - Edmondo M Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , CH-8093 Zurich , Switzerland
- Biointerfaces , Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
| | - Valentin-Victor Jerca
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences , Ghent University , Krijgslaan 281 S4 , 9000 Ghent , Belgium
- Centre for Organic Chemistry "Costin D. Nenitescu" , Romanian Academy , 202B Spl. Independentei CP 35-108 , 060023 Bucharest , Romania
| | - Heidi Declercq
- Department of Basic Medical Science, Faculty of Medicine and Health Science , Ghent University , De Pintelaan 185 6B3 , 9000 Ghent , Belgium
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology (LPM), Department of Pharmaceutical Analysis, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , 9000 Ghent , Belgium
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture , Ghent University , Sint-Pietersnieuwstraat 41 B4 , 9000 Ghent , Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences , Ghent University , Krijgslaan 281 S4 , 9000 Ghent , Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture , Ghent University , Sint-Pietersnieuwstraat 41 B4 , 9000 Ghent , Belgium
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31
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Taunk A, Chen R, Iskander G, Ho KKK, Almohaywi B, Black DS, Willcox MDP, Kumar N. The Role of Orientation of Surface Bound Dihydropyrrol-2-ones (DHP) on Biological Activity. Molecules 2019; 24:E2676. [PMID: 31340597 PMCID: PMC6680537 DOI: 10.3390/molecules24142676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 11/16/2022] Open
Abstract
Quorum sensing (QS) signaling system is important for bacterial growth, adhesion, and biofilm formation resulting in numerous infectious diseases. Dihydropyrrol-2-ones (DHPs) represent a novel class of antimicrobial agents that inhibit QS, and are less prone to develop bacterial resistance due to their non-growth inhibition mechanism of action which does not cause survival pressure on bacteria. DHPs can prevent bacterial colonization and quorum sensing when covalently bound to substrates. In this study, the role of orientation of DHP compounds was investigated after covalent attachment by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC)/N-hydroxysuccinimide (NHS) coupling reaction to amine-functionalized glass surfaces via various positions of the DHP scaffold. The functionalized glass surfaces were characterized by X-ray photoelectron spectroscopy (XPS) and contact angle measurements and tested for their in vitro biological activity against S. aureus and P. aeruginosa. DHPs attached via the N-1 position resulted in the highest antibacterial activities against S. aureus, while no difference was observed for DHPs attached either via the N-1 position or the C-4 phenyl ring against P. aeruginosa.
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Affiliation(s)
- Aditi Taunk
- School of Chemistry, University of New South Wales, Sydney 2052, Australia
| | - Renxun Chen
- School of Chemistry, University of New South Wales, Sydney 2052, Australia
| | - George Iskander
- School of Chemistry, University of New South Wales, Sydney 2052, Australia
| | - Kitty K K Ho
- School of Chemistry, University of New South Wales, Sydney 2052, Australia
| | - Basmah Almohaywi
- School of Chemistry, University of New South Wales, Sydney 2052, Australia
| | | | - Mark D P Willcox
- School of Optometry and Vision Science, University of New South Wales, Sydney 2052, Australia
| | - Naresh Kumar
- School of Chemistry, University of New South Wales, Sydney 2052, Australia.
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32
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Hopp I, MacGregor MN, Doherty K, Visalakshan RM, Vasilev K, Williams RL, Murray P. Plasma Polymer Coatings To Direct the Differentiation of Mouse Kidney-Derived Stem Cells into Podocyte and Proximal Tubule-like Cells. ACS Biomater Sci Eng 2019; 5:2834-2845. [PMID: 33405588 DOI: 10.1021/acsbiomaterials.9b00299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Kidney disease is now recognized as a global health problem and is associated with increased morbidity and mortality, along with high economic costs. To develop new treatments for ameliorating kidney injury and preventing disease progression, there is a need for appropriate renal culture systems for screening novel drugs and investigating the cellular mechanisms underlying renal pathogenesis. There is a need for in vitro culture systems that promote the growth and differentiation of specialized renal cell types. In this work, we have used plasma polymerization technology to generate gradients of chemical functional groups to explore whether specific concentrations of these functional groups can direct the differentiation of mouse kidney-derived stem cells into specialized renal cell types. We found that amine-rich (-NH2) allylamine-based plasma-polymerized coatings could promote differentiation into podocyte-like cells, whereas methyl-rich (CH3) 1,7-octadiene-based coatings promoted differentiation into proximal tubule-like cells (PTC). Importantly, the PT-like cells generated on the substrates expressed the marker megalin and were able to endocytose albumin, indicating that the cells were functional.
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Affiliation(s)
- Isabel Hopp
- Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3GE, United Kingdom
| | - Melanie N MacGregor
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, Australia
| | - Kyle Doherty
- Department of Eye and Vision Science, University of Liverpool, 6 West Derby Street, Liverpool L7 8TX, United Kingdom
| | - Rahul M Visalakshan
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, Australia
| | - Krasimir Vasilev
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, Australia
| | - Rachel L Williams
- Department of Eye and Vision Science, University of Liverpool, 6 West Derby Street, Liverpool L7 8TX, United Kingdom
| | - Patricia Murray
- Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3GE, United Kingdom
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33
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Nebe JB, Rebl H, Schlosser M, Staehlke S, Gruening M, Weltmann KD, Walschus U, Finke B. Plasma Polymerized Allylamine-The Unique Cell-Attractive Nanolayer for Dental Implant Materials. Polymers (Basel) 2019; 11:polym11061004. [PMID: 31195717 PMCID: PMC6631006 DOI: 10.3390/polym11061004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/27/2019] [Accepted: 05/31/2019] [Indexed: 12/02/2022] Open
Abstract
Biomaterials should be bioactive in stimulating the surrounding tissue to accelerate the ingrowth of permanent implants. Chemical and topographical features of the biomaterial surface affect cell physiology at the interface. A frequently asked question is whether the chemistry or the topography dominates the cell-material interaction. Recently, we demonstrated that a plasma-chemical modification using allylamine as a precursor was able to boost not only cell attachment and cell migration, but also intracellular signaling in vital cells. This microwave plasma process generated a homogenous nanolayer with randomly distributed, positively charged amino groups. In contrast, the surface of the human osteoblast is negatively charged at −15 mV due to its hyaluronan coat. As a consequence, we assumed that positive charges at the material surface—provoking electrostatic interaction forces—are attractive for the first cell encounter. This plasma-chemical nanocoating can be used for several biomaterials in orthopedic and dental implantology like titanium, titanium alloys, calcium phosphate scaffolds, and polylactide fiber meshes produced by electrospinning. In this regard, we wanted to ascertain whether plasma polymerized allylamine (PPAAm) is also suitable for increasing the attractiveness of a ceramic surface for dental implants using Yttria-stabilized tetragonal zirconia.
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Affiliation(s)
- J Barbara Nebe
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, 18057 Rostock, Germany.
- Department Life, Light & Matter, University of Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany.
| | - Henrike Rebl
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, 18057 Rostock, Germany.
| | - Michael Schlosser
- Department of Surgery, University Medical Center Greifswald, 17475 Greifswald, Germany.
- Department of Medical Biochemistry and Molecular Biology, University Medical Center Greifswald, 17475 Greifswald, Germany.
| | - Susanne Staehlke
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, 18057 Rostock, Germany.
| | - Martina Gruening
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, 18057 Rostock, Germany.
| | - Klaus-Dieter Weltmann
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Uwe Walschus
- Department of Medical Biochemistry and Molecular Biology, University Medical Center Greifswald, 17475 Greifswald, Germany.
| | - Birgit Finke
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
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34
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Lowe B, Ottensmeyer MP, Xu C, He Y, Ye Q, Troulis MJ. The Regenerative Applicability of Bioactive Glass and Beta-Tricalcium Phosphate in Bone Tissue Engineering: A Transformation Perspective. J Funct Biomater 2019; 10:E16. [PMID: 30909518 PMCID: PMC6463135 DOI: 10.3390/jfb10010016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/15/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022] Open
Abstract
The conventional applicability of biomaterials in the field of bone tissue engineering takes into consideration several key parameters to achieve desired results for prospective translational use. Hence, several engineering strategies have been developed to model in the regenerative parameters of different forms of biomaterials, including bioactive glass and β-tricalcium phosphate. This review examines the different ways these two materials are transformed and assembled with other regenerative factors to improve their application for bone tissue engineering. We discuss the role of the engineering strategy used and the regenerative responses and mechanisms associated with them.
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Affiliation(s)
- Baboucarr Lowe
- School of Dentistry, The University of Queensland, Brisbane, Herston 4006, Queensland, Australia.
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA 02114, USA.
| | - Mark P Ottensmeyer
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, Herston 4006, Queensland, Australia.
| | - Yan He
- School of Dentistry, The University of Queensland, Brisbane, Herston 4006, Queensland, Australia.
| | - Qingsong Ye
- School of Dentistry, The University of Queensland, Brisbane, Herston 4006, Queensland, Australia.
| | - Maria J Troulis
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA 02114, USA.
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35
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Macgregor M, Vasilev K. Perspective on Plasma Polymers for Applied Biomaterials Nanoengineering and the Recent Rise of Oxazolines. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E191. [PMID: 30626075 PMCID: PMC6337614 DOI: 10.3390/ma12010191] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/21/2018] [Accepted: 01/02/2019] [Indexed: 11/16/2022]
Abstract
Plasma polymers are unconventional organic thin films which only partially share the properties traditionally attributed to polymeric materials. For instance, they do not consist of repeating monomer units but rather present a highly crosslinked structure resembling the chemistry of the precursor used for deposition. Due to the complex nature of the deposition process, plasma polymers have historically been produced with little control over the chemistry of the plasma phase which is still poorly understood. Yet, plasma polymer research is thriving, in par with the commercialisation of innumerable products using this technology, in fields ranging from biomedical to green energy industries. Here, we briefly summarise the principles at the basis of plasma deposition and highlight recent progress made in understanding the unique chemistry and reactivity of these films. We then demonstrate how carefully designed plasma polymer films can serve the purpose of fundamental research and biomedical applications. We finish the review with a focus on a relatively new class of plasma polymers which are derived from oxazoline-based precursors. This type of coating has attracted significant attention recently due to its unique properties.
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Affiliation(s)
- Melanie Macgregor
- School of Engineering, University of South Australia, Adelaide, SA 5000, Australia.
- Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia.
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Adelaide, SA 5000, Australia.
- Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia.
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36
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Taunk A, Chen R, Iskander G, Ho KKK, Black DS, Willcox MDP, Kumar N. Dual-Action Biomaterial Surfaces with Quorum Sensing Inhibitor and Nitric Oxide To Reduce Bacterial Colonization. ACS Biomater Sci Eng 2018; 4:4174-4182. [DOI: 10.1021/acsbiomaterials.8b00816] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Aditi Taunk
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Renxun Chen
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - George Iskander
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Kitty K. K. Ho
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | | | - Mark D. P. Willcox
- School of Optometry and Vision Science, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Naresh Kumar
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
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37
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Griffin M, Palgrave R, Baldovino-Medrano VG, Butler PE, Kalaskar DM. Argon plasma improves the tissue integration and angiogenesis of subcutaneous implants by modifying surface chemistry and topography. Int J Nanomedicine 2018; 13:6123-6141. [PMID: 30349241 PMCID: PMC6181122 DOI: 10.2147/ijn.s167637] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Tissue integration and vessel formation are important criteria for the successful implantation of synthetic biomaterials for subcutaneous implantation. OBJECTIVE We report the optimization of plasma surface modification (PSM) using argon (Ar), oxygen (O2) and nitrogen (N2) gases of a polyurethane polymer to enhance tissue integration and angiogenesis. METHODS The scaffold's bulk and surface characteristics were compared before and after PSM with either Ar, O2 and N2. The viability and adhesion of human dermal fibroblasts (HDFs) on the modified scaffolds were compared. The formation of extracellular matrix by the HDFs on the modified scaffolds was evaluated. Scaffolds were subcutaneously implanted in a mouse model for 3 months to analyze tissue integration, angiogenesis and capsule formation. RESULTS Surface analysis demonstrated that interfacial modification (chemistry, topography and wettability) achieved by PSM is unique and varies according to the gas used. O2 plasma led to extensive changes in interfacial properties, whereas Ar treatment caused moderate changes. N2 plasma caused the least effect on surface chemistry of the polymer. PSM-treated scaffolds significantly (P<0.05) enhanced HDF activity and growth over 21 days. Among all three gases, Ar modification showed the highest protein adsorption. Ar-modified scaffolds also showed a significant upregulation of adhesion-related proteins (vinculin, focal adhesion kinase, talin and paxillin; P<0.05) and extracellular matrix marker genes (collagen type I, fibronectin, laminin and elastin) and deposition of associated proteins by the HDFs. Subcutaneous implantation after 3 months demonstrated the highest tissue integration and angiogenesis and the lowest capsule formation on Ar-modified scaffolds compared with O2- and N2-modified scaffolds. CONCLUSION PSM using Ar is a cost-effective and efficient method to improve the tissue integration and angiogenesis of subcutaneous implants.
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Affiliation(s)
- Michelle Griffin
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK,
- Royal Free London NHS Foundation Trust Hospital, London, UK
- The Charles Wolfson Center for Reconstructive Surgery, Royal Free London NHS Foundation Trust Hospital, London, UK
| | - Robert Palgrave
- Department of Chemistry, University College London, London, UK
| | | | - Peter E Butler
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK,
- Royal Free London NHS Foundation Trust Hospital, London, UK
- The Charles Wolfson Center for Reconstructive Surgery, Royal Free London NHS Foundation Trust Hospital, London, UK
| | - Deepak M Kalaskar
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK,
- UCL Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery and Interventional Science, University College London, London, UK,
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Zhang Y, Yu W, Ba Z, Cui S, Wei J, Li H. 3D-printed scaffolds of mesoporous bioglass/gliadin/polycaprolactone ternary composite for enhancement of compressive strength, degradability, cell responses and new bone tissue ingrowth. Int J Nanomedicine 2018; 13:5433-5447. [PMID: 30271139 PMCID: PMC6149932 DOI: 10.2147/ijn.s164869] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Due to the increasing number of patients with bone defects, bone nonunion and osteo-myelitis, tumor and congenital diseases, bone repair has become an urgent problem to be solved. METHODS In this study, the 3D-printed scaffolds of ternary composites containing mesoporous bioglass fibers of magnesium calcium silicate (mMCS), gliadin (GA) and polycaprolactone (PCL) were fabricated using a 3D Bioprinter. RESULTS The compressive strength and in vitro degradability of the mMCS/GA/PCL composites (MGPC) scaffolds were improved with the increase of mMCS content. In addition, the attachment and proliferation of MC3T3-E1 cells on the scaffolds were significantly promoted with the increase of mMCS content. Moreover, the cells with normal phenotype attached and spread well on the scaffolds surfaces, indicating good cytocompatibility. The scaffolds were implanted into the femur defects of rabbits, and the results demonstrated that the scaffold containing mMCS stimulated new bone formation and ingrowth into the scaffolds through scaffolds degradation in vivo. Moreover, the expression of type I collagen into scaffolds was enhanced with the increase of mMCS content. CONCLUSION The 3D-printed MGPC scaffold with controllable architecture, good biocompatibility, high compressive strength, proper degradability and excellent in vivo osteogenesis has great potential for bone regeneration.
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Affiliation(s)
- Yiqun Zhang
- Department of Hand Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China,
| | - Wei Yu
- Department of Hand Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China,
| | - Zhaoyu Ba
- Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China,
| | - Shusen Cui
- Department of Hand Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China,
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Hong Li
- College of Physical Science and Technology, Sichuan University, Chengdu 610041, China
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Li J, Liu Z, Li Y, Jing Q, Wang H, Liu H, Chen J, Feng J, Shao Q, Fu R. Everolimus shows synergistic antimyeloma effects with bortezomib via the AKT/mTOR pathway. J Investig Med 2018; 67:39-47. [PMID: 29997148 DOI: 10.1136/jim-2018-000780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2018] [Indexed: 01/07/2023]
Abstract
Multiple myeloma (MM) is characterized by the proliferation of malignant plasma cells and a subsequent overabundance of monoclonal paraproteins (M proteins). Everolimus works similarly to sirolimus as a mammalian target of rapamycin (mTOR) inhibitor. Bortezomib was the first therapeutic proteasome inhibitor to be tested in humans with MM. However, the combination of these two drugs for the treatment of MM has been rarely reported. In this study, we compared the therapeutic effects of everolimus and bortezomib, as well as those of a combination of everolimus and bortezomib, using an in vitro MM cell line model and in vivo xenograft mouse model. Our results showed that the synergistic antitumor effects of everolimus and bortezomib have significant inhibitory effect through inhibition of the AKT/mTOR pathway in both the MM cell lines and MM-bearing mice model. Our results provided evidence that the mTOR inhibitor, everolimus, will be a potential drug in MM therapy.
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Affiliation(s)
- Jing Li
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhaoyun Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yanqi Li
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Qian Jing
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Honglei Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Hui Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jin Chen
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Junru Feng
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Qing Shao
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Rong Fu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
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Chan KV, Onyshchenko I, Nikiforov A, Aziz G, Morent R, De Geyter N. Plasma polymerization of cyclopropylamine with a sub-atmospheric pressure DBD. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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41
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Kapat K, Rameshbabu AP, Maity PP, Mandal A, Bankoti K, Dutta J, Das DK, Dey G, Mandal M, Dhara S. Osteochondral Defects Healing Using Extracellular Matrix Mimetic Phosphate/Sulfate Decorated GAGs-Agarose Gel and Quantitative Micro-CT Evaluation. ACS Biomater Sci Eng 2018; 5:149-164. [DOI: 10.1021/acsbiomaterials.8b00253] [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)
| | | | - Priti Prasanna Maity
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur 711103, India
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Niepel MS, Almouhanna F, Ekambaram BK, Menzel M, Heilmann A, Groth T. Cross-linking multilayers of poly-l-lysine and hyaluronic acid: Effect on mesenchymal stem cell behavior. Int J Artif Organs 2018. [PMID: 29528795 DOI: 10.1177/0391398817752598] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Cells possess a specialized machinery through which they can sense physical as well as chemical alterations in their surrounding microenvironment that affect their cellular behavior. AIM In this study, we aim to establish a polyelectrolyte multilayer system of 24 layers of poly-l-lysine and hyaluronic acid to control stem cell response after chemical cross-linking. METHODS AND RESULTS The multilayer build-up process is monitored using different methods, which show that the studied polyelectrolyte multilayer system grows exponentially following the islands and islets theory. Successful chemical cross-linking is monitored by an increased zeta potential toward negative magnitude and an extraordinary growth in thickness. Human adipose-derived stem cells are used here and a relationship between cross-linking degree and cell spreading is shown as cells seeded on higher cross-linked polyelectrolyte multilayer show enhanced spreading. Furthermore, cells that fail to establish focal adhesions on native and low cross-linked polyelectrolyte multilayer films do not proliferate to a high extent in comparison to cells seeded on highly cross-linked polyelectrolyte multilayer, which also show an increased metabolic activity. Moreover, this study shows the relation between cross-linking degree and human adipose-derived stem cell lineage commitment. Histological staining reveals that highly cross-linked polyelectrolyte multilayers support osteogenic differentiation, whereas less cross-linked and native polyelectrolyte multilayers support adipogenic differentiation in the absence of any specific inducers. CONCLUSION Owing to the precise control of polyelectrolyte multilayer properties such as potential, wettability, and viscoelasticity, the system presented here offers great potential for guided stem cell differentiation in regenerative medicine, especially in combination with materials exhibiting a defined surface topography.
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Affiliation(s)
- Marcus S Niepel
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,2 Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Fadi Almouhanna
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,3 Pharmaceutical Biology, Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany
| | - Bhavya K Ekambaram
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Matthias Menzel
- 4 Biological and Macromolecular Materials Business Unit, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany
| | - Andreas Heilmann
- 4 Biological and Macromolecular Materials Business Unit, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany
| | - Thomas Groth
- 1 Institute of Pharmacy, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,2 Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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Moerke C, Staehlke S, Rebl H, Finke B, Nebe JB. Restricted cell functions on micropillars are alleviated by surface-nanocoating with amino groups. J Cell Sci 2018; 131:jcs.207001. [PMID: 29122983 DOI: 10.1242/jcs.207001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 11/05/2017] [Indexed: 01/13/2023] Open
Abstract
The topographical and chemical surface features of biomaterials are sensed by the cells, affecting their physiology at the interface. When placed on titanium, we recently discovered osteoblasts attempted caveolae-mediated phagocytosis of the sharp-edged microstructures. This active, energy-consuming process resulted in decreased osteoblastic cell functions (e.g. secretion of extracellular matrix proteins). However, chemical modification with plasma polymerized allylamine (PPAAm) was able to amplify osteoblast adhesion and spreading, resulting in better implant osseointegration in vivo In the present in vitro study, we analyzed whether this plasma polymer nanocoating is able to attenuate the microtopography-induced changes of osteoblast physiology. On PPAAm, we found cells showed a higher cell interaction with the geometrical micropillars by 30 min, and a less distinct reduction in the mRNA expression of collagen type I, osteocalcin and fibronectin after 24 h of cell growth. Interestingly, the cells were more active and sensitive on PPAAm-coated micropillars, and react with a substantial Ca2+ ion mobilization after stimulation with ATP. These results highlight that it is important for osteoblasts to establish cell surface contact for them to perform their functions.
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Affiliation(s)
- Caroline Moerke
- University Medical Center Rostock, Dept. of Cell Biology, Schillingallee 69, 18057 Rostock, Germany
| | - Susanne Staehlke
- University Medical Center Rostock, Dept. of Cell Biology, Schillingallee 69, 18057 Rostock, Germany
| | - Henrike Rebl
- University Medical Center Rostock, Dept. of Cell Biology, Schillingallee 69, 18057 Rostock, Germany
| | - Birgit Finke
- Leibniz-Institute for Plasma Science and Technology e.V. (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - J Barbara Nebe
- University Medical Center Rostock, Dept. of Cell Biology, Schillingallee 69, 18057 Rostock, Germany
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Liu X, Xie Y, Liu R, Zhang R, Yan H, Yang X, Huang Q, He W, Yu B, Feng Q, Mi S, Cai Q. A cyclo-trimer of acetonitrile combining fluorescent property with ability to induce osteogenesis and its potential as multifunctional biomaterial. Acta Biomater 2018; 65:163-173. [PMID: 29061377 DOI: 10.1016/j.actbio.2017.10.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/17/2017] [Accepted: 10/17/2017] [Indexed: 12/24/2022]
Abstract
A biomaterial combining fluorescent property with ability to induce osteogenesis can serve as an ideal multifunctional scaffold in bone tissue engineering. However, the frequently used fluorescent agents can only serve as imaging probes. The polymer or oligomer with a conjugated system containing nitrogen atoms will fulfill these criteria. In this study, a cyclo-trimer of acetonitrile is synthesized using a facile method, which is proved to be 4-amino-2,6-dimethylpyrimidine. The cyclo-trimer of acetonitrile demonstrates strong intrinsic photoluminescence and has the potential for in vivo imaging. The cyclo-trimer of acetonitrile shows no toxicity both in vitro and in vivo. Moreover, the cyclo-trimer of acetonitrile significantly promotes the osteogenesis of SaOS-2 cells by improving alkaline phosphatase activity, collagen type I and osteocalcin expression, as well as expressions of osteoblastic genes, and enhances the matrix mineralization of rBMSCs. Thus, the cyclo-trimer of acetonitrile synthesized in present study illustrates the employment of this kind multifunctional biomaterial in bone tissue engineering and may offer great potential in biomedical applications where bioimaging and osteogenesis are both required. STATEMENT OF SIGNIFICANCE A conjugated cyclo-trimer of acetonitrile combining intrinsic fluorescent property with ability to induce osteogenesis was reported. Different from the traditional fluorescent dye or quantum dots, which are just "imaging agents", the cyclo-trimer of acetonitrile can serve as a multifunctional biomaterial and offer great potential in biomedical applications where bioimaging and osteogenesis are both required. To our best knowledge, the fluorescent property, especially fluorescent property in vivo and the ability of this molecule to induce osteogenesis have not been reported before. Our work illustrates the employment of this kind multifunctional biomaterial in bone tissue engineering and will highlight the importance of multifunctional biomaterial in biomedical applications.
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45
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Hsieh YF, Sahagian K, Huang F, Xu K, Patel S, Li S. Comparison of plasma and chemical modifications of poly-L-lactide-co-caprolactone scaffolds for heparin conjugation. ACTA ACUST UNITED AC 2017; 12:065004. [PMID: 28980527 DOI: 10.1088/1748-605x/aa81aa] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Biodegradable polymers have potential as a scaffold material for making small diameter artery bypass grafts. To resist thrombosis, maintain biocompatibility and enhance the remodeling of the grafts, it is crucial to modify polymer scaffolds so that the grafts have antithrombogenic capacity and allow cell infiltration. In this study, two methods of aminolysis on electrospun poly-L-lactide-co-caprolactone (PLCL) microfiber vascular grafts are compared: plasma treatment method and Fmoc-PEG-diamine insertion method. Both methods successfully inserted amino groups on the polymer graft for heparin conjugation. However, plasma treatment resulted in significantly higher initial heparin density and higher heparin stability on PLCL microfibers than Fmoc-PEG-diamine treatment. In addition, mechanical testing demonstrated that the plasma treatment method maintained PLCL microfiber tensile strength after heparin conjugation. Fmoc-PEG-diamine insertion method compromised the mechanical property due to partial fiber melting and structure disruption. Subcutaneous implantation of the grafts in a rat model showed that heparin coating with both methods promoted cell infiltration. This study provides a rationale to optimize the biomolecule conjugation on electrospun PLCL scaffolds, and will have applications in tissue engineering vascular grafts and other tissues.
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Affiliation(s)
- Yu-Fang Hsieh
- Department of Bioengineering, University of California at Berkeley, CA, United States of America
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46
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Bachhuka A, Delalat B, Ghaemi SR, Gronthos S, Voelcker NH, Vasilev K. Nanotopography mediated osteogenic differentiation of human dental pulp derived stem cells. NANOSCALE 2017; 9:14248-14258. [PMID: 28914948 DOI: 10.1039/c7nr03131a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Advanced medical devices, treatments and therapies demand an understanding of the role of interfacial properties on the cellular response. This is particularly important in the emerging fields of cell therapies and tissue regeneration. In this study, we evaluate the role of surface nanotopography on the fate of human dental pulp derived stem cells (hDPSC). These stem cells have attracted interest because of their capacity to differentiate to a range of useful lineages but are relatively easy to isolate. We generated and utilized density gradients of gold nanoparticles which allowed us to examine, on a single substrate, the influence of nanofeature density and size on stem cell behavior. We found that hDPSC adhered in greater numbers and proliferated faster on the sections of the gradients with higher density of nanotopography features. Furthermore, greater surface nanotopography density directed the differentiation of hDPSC to osteogenic lineages. This study demonstrates that carefully tuned surface nanotopography can be used to manipulate and guide the proliferation and differentiation of these cells. The outcomes of this study can be important in the rational design of culture substrates and vehicles for cell therapies, tissue engineering constructs and the next generation of biomedical devices where control over the growth of different tissues is required.
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Affiliation(s)
- Akash Bachhuka
- Future Industries Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia. and ARC Centre of Excellence for Nanoscale Bio Photonics, Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Bahman Delalat
- Future Industries Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia.
| | - Soraya Rasi Ghaemi
- Future Industries Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia.
| | - Stan Gronthos
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, 5005, SA, Australia
| | - Nicolas H Voelcker
- Future Industries Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia. and Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, 151 Wellington Road, Clayton, Victoria 3168, Australia. and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia and Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria 3168, Australia and INM-Leibniz Institute for New Materials, Campus D2 2, Saarbrücken, 66123, Germany
| | - Krasimir Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia. and School of Engineering, University of South Australia, Adelaide, SA 5000, Australia
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Macgregor M, Williams R, Downes J, Bachhuka A, Vasilev K. The Role of Controlled Surface Topography and Chemistry on Mouse Embryonic Stem Cell Attachment, Growth and Self-Renewal. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1081. [PMID: 28906470 PMCID: PMC5615735 DOI: 10.3390/ma10091081] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 12/17/2022]
Abstract
The success of stem cell therapies relies heavily on our ability to control their fate in vitro during expansion to ensure an appropriate supply. The biophysical properties of the cell culture environment have been recognised as a potent stimuli influencing cellular behaviour. In this work we used advanced plasma-based techniques to generate model culture substrates with controlled nanotopographical features of 16 nm, 38 nm and 68 nm in magnitude, and three differently tailored surface chemical functionalities. The effect of these two surface properties on the adhesion, spreading, and self-renewal of mouse embryonic stem cells (mESCs) were assessed. The results demonstrated that physical and chemical cues influenced the behaviour of these stem cells in in vitro culture in different ways. The size of the nanotopographical features impacted on the cell adhesion, spreading and proliferation, while the chemistry influenced the cell self-renewal and differentiation.
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Affiliation(s)
- Melanie Macgregor
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.
| | - Rachel Williams
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK.
| | - Joni Downes
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK.
| | - Akash Bachhuka
- Institute for Photonics and Advanced Sensing, University of Adelaide, Adelaide, SA 5000, Australia.
| | - Krasimir Vasilev
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.
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Cao B, Peng Y, Liu X, Ding J. Effects of Functional Groups of Materials on Nonspecific Adhesion and Chondrogenic Induction of Mesenchymal Stem Cells on Free and Micropatterned Surfaces. ACS APPLIED MATERIALS & INTERFACES 2017; 9:23574-23585. [PMID: 28616967 DOI: 10.1021/acsami.7b08339] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Functional groups of materials are known to affect cell behaviors, yet the corresponding effect on stem cell differentiation is always coupled with that of cell spreading; it is thus unclear whether the chemical groups influence cell differentiation directly or via cell spreading indirectly. Herein we used a unique surface patterning technique to decouple the corresponding effects. Mesenchymal stem cells (MSCs) derived from bone marrow were seeded on surfaces coated with alkanethiols with one of four functional end groups (-CH3, -OH, -COOH, and -NH2) and underwent 9 days of chondrogenic induction. The measurements of quartz crystal microbalance with dissipation confirmed less proteins adsorbed from the cell culture media on the neutral -CH3 and -OH surfaces than on the charged -COOH and -NH2 surfaces. The neutral surfaces exhibited less cell spreading and higher extents of chondrogenic differentiation than the charged surfaces, according to the characterizations of immunofluorescence staining and quantitative real-time polymerase chain reaction. We further used a transfer lithography technique to prepare patterned surfaces on nonfouling poly(ethylene glycol) hydrogels to localize single MSCs on microislands with self-assembly monolayers of different alkanethiols, under given microisland areas and thus well-defined spreading areas of cells. While small microislands were always beneficial for chondrogenic induction, we found that the type of functional groups had no significant effect on chondrogenic induction under the given cell spreading areas, implying that the chemical groups influence cell differentiation only indirectly. Our results hence illustrate that functional groups regulate stem cell differentiation via tuning protein adsorption and then nonspecific cell adhesion and thus cell spreading.
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Affiliation(s)
- Bin Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Yuanmeng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Xiangnan Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
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Griffin M, Ibrahim A, Seifalian A, Butler P, Kalaskar D, Ferretti P. Chemical group-dependent plasma polymerisation preferentially directs adipose stem cell differentiation towards osteogenic or chondrogenic lineages. Acta Biomater 2017; 50:450-461. [PMID: 27956359 PMCID: PMC5331891 DOI: 10.1016/j.actbio.2016.12.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/25/2016] [Accepted: 12/07/2016] [Indexed: 12/17/2022]
Abstract
Human adipose derived stem cells (ADSCs) are being explored for the repair of craniofacial defects due to their multi-differentiation potential and ease of isolation and expansion. Crucial to using ADSCs for craniofacial repair is the availability of materials with appropriate biomechanical properties that can support their differentiation into bone and cartilage. We tested the hypothesis that different modifications of chemical groups on the surface of a nanocomposite polymer could increase human ADSC adhesion and selectively enhance their osteogenic and chondrogenic differentiation. We show that the COOH modification significantly promoted initial cell adhesion and proliferation over 14 days compared to NH2 surfaces. Expression of focal adhesion kinase and vinculin was enhanced after plasma surface polymerisation at 24 h. The COOH modification significantly enhanced chondrogenic differentiation as indicated by up-regulation of aggrecan and collagen II transcripts. In contrast, NH2 group functionalised scaffolds promoted osteogenic differentiation with significantly enhanced expression of collagen I, alkaline phosphatase and osteocalcin both at the gene and protein level. Finally, chorioallantoic membrane grafting demonstrated that both NH2 and COOH functionalised scaffolds seeded with ADSCs were biocompatible and supported vessel ingrowth apparently to a greater degree than unmodified scaffolds. In summary, our study shows the ability to direct ADSC chondrogenic and osteogenic differentiation by deposition of different chemical groups through plasma surface polymerisation. Hence this approach could be used to selectively enhance bone or cartilage formation before implantation in vivo to repair skeletal defects. Statement of Significance Human adipose derived stem cells (hADSCs) are an exciting stem cell source for regenerative medicine due to their plentiful supply and ease of isolation. However, the optimal environmental cues to direct stem cells towards certain lineages change have to has not been identified. We have shown that by modifying the surface of the scaffold with specific chemical groups using plasma surface polymerisation techniques we can control ADSCs differentiation. This study shows that ADSCs can be differentiated towards osteogenic and chondrogenic lineages on amine (NH2) and carboxyl (COOH) modified scaffolds respectively. Plasma polymerisation can be easily applied to other biomaterial surfaces to direct stem cell differentiation for the regeneration of bone and cartilage.
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Mesenchymal Stem Cells for the Treatment of Spinal Arthrodesis: From Preclinical Research to Clinical Scenario. Stem Cells Int 2017; 2017:3537094. [PMID: 28286524 PMCID: PMC5327761 DOI: 10.1155/2017/3537094] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/05/2017] [Indexed: 02/07/2023] Open
Abstract
The use of spinal fusion procedures has rapidly augmented over the last decades and although autogenous bone graft is the “gold standard” for these procedures, alternatives to its use have been investigated over many years. A number of emerging strategies as well as tissue engineering with mesenchymal stem cells (MSCs) have been planned to enhance spinal fusion rate. This descriptive systematic literature review summarizes the in vivo studies, dealing with the use of MSCs in spinal arthrodesis surgery and the state of the art in clinical applications. The review has yielded promising evidence supporting the use of MSCs as a cell-based therapy in spinal fusion procedures, thus representing a suitable biological approach able to reduce the high cost of osteoinductive factors as well as the high dose needed to induce bone formation. Nevertheless, despite the fact that MSCs therapy is an interesting and important opportunity of research, in this review it was detected that there are still doubts about the optimal cell concentration and delivery method as well as the ideal implantation techniques and the type of scaffolds for cell delivery. Thus, further inquiry is necessary to carefully evaluate the clinical safety and efficacy of MSCs use in spine fusion.
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