1
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Kim J. Characterization of Biocompatibility of Functional Bioinks for 3D Bioprinting. Bioengineering (Basel) 2023; 10:bioengineering10040457. [PMID: 37106644 PMCID: PMC10135811 DOI: 10.3390/bioengineering10040457] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/02/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Three-dimensional (3D) bioprinting with suitable bioinks has become a critical tool for fabricating 3D biomimetic complex structures mimicking physiological functions. While enormous efforts have been devoted to developing functional bioinks for 3D bioprinting, widely accepted bioinks have not yet been developed because they have to fulfill stringent requirements such as biocompatibility and printability simultaneously. To further advance our knowledge of the biocompatibility of bioinks, this review presents the evolving concept of the biocompatibility of bioinks and standardization efforts for biocompatibility characterization. This work also briefly reviews recent methodological advances in image analyses to characterize the biocompatibility of bioinks with regard to cell viability and cell-material interactions within 3D constructs. Finally, this review highlights a number of updated contemporary characterization technologies and future perspectives to further advance our understanding of the biocompatibility of functional bioinks for successful 3D bioprinting.
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Affiliation(s)
- Jinku Kim
- Department of Biological and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
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2
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Antmen E, Ermis M, Kuren O, Beksac K, Irkkan C, Hasirci V. Nuclear Deformability of Breast Cells Analyzed from Patients with Malignant and Benign Breast Diseases. ACS Biomater Sci Eng 2023; 9:1629-1643. [PMID: 36706038 DOI: 10.1021/acsbiomaterials.2c01059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Breast cancer is a heterogeneous and dynamic disease, in which cancer cells are highly responsive to alterations in the microenvironment. Today, conventional methods of detecting cancer give a rather static image of the condition of the disease, so dynamic properties such as invasiveness and metastasis are difficult to capture. In this study, conventional molecular-level evaluations of the patients with breast adenocarcinoma were combined with in vitro methods on micropatterned poly(methyl methacrylate) (PMMA) biomaterial surfaces that deform cells. A correlation between deformability of the nuclei and cancer stemness, invasiveness, and metastasis was sought. Clinical patient samples were from regions of the breast with different proximities to the tumor. Responses at the single-cell level toward the micropatterned surfaces were studied using CD44/24, epithelial cell adhesion marker (EpCAM), MUC1, and PCK. Results showed that molecular markers and shape descriptors can discriminate the cells from different proximities to the tumor center and from different patients. The cells with the most metastatic and invasive properties showed both the highest deformability and the highest level of metastatic markers. In conclusion, by using a combination of molecular markers together with nuclear deformation, it is possible to improve detection and separation of subpopulations in heterogenous breast cancer specimens at the single-cell level.
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Affiliation(s)
- Ezgi Antmen
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
| | - Menekse Ermis
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
| | - Ozgur Kuren
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
| | - Kemal Beksac
- Department of General Surgery, Ankara Oncology Hospital, Yenimahalle, Ankara06800, Turkey
| | - Cigdem Irkkan
- Department of Pathology, Ankara Oncology Hospital, Yenimahalle, Ankara06800, Turkey
| | - Vasif Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara06800, Turkey
- Department of Biomedical Engineering, Acibadem Mehmet Ali Aydinlar University (ACU), Istanbul34752, Turkey
- ACU Biomaterials Center, Acibadem Mehmet Ali Aydinlar University (ACU), Atasehir, Istanbul34752, Turkey
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3
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Liu Y, Krastev R, Wei J, Jiang M. Editorial: Functional surfaces and biomaterials. Front Bioeng Biotechnol 2023; 11:1138172. [PMID: 36733968 PMCID: PMC9887170 DOI: 10.3389/fbioe.2023.1138172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Affiliation(s)
- Yuangang Liu
- College of Chemical Engineering, Huaqiao University, Xiamen, China,*Correspondence: Yuangang Liu,
| | - Rumen Krastev
- Faculty for Life Sciences, Reutlingen University, Reutlingen, Germany
| | - Junchao Wei
- School of Stomatology, Nanchang University, Nanchang, China
| | - Min Jiang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
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4
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Romero‐Gavilán F, Cerqueira A, García‐Arnáez I, Azkargorta M, Elortza F, Gurruchaga M, Goñi I, Suay J. Proteomic evaluation of human osteoblast responses to titanium implants over time. J Biomed Mater Res A 2023; 111:45-59. [PMID: 36054528 PMCID: PMC9804409 DOI: 10.1002/jbm.a.37444] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/13/2022] [Accepted: 08/18/2022] [Indexed: 01/05/2023]
Abstract
Titanium is widely used in bone prostheses due to its excellent biocompatibility and osseointegration capacity. To understand the effect of sandblasted acid-etched (SAE) Ti implants on the biological responses of human osteoblast (HOb), their proteomic profiles were analyzed using nLC-MS/MS. The cells were cultured with the implant materials, and 2544 distinct proteins were detected in samples taken after 1, 3, and 7 days. Comparative analyses of proteomic data were performed using Perseus software. The expression of proteins related to EIF2, mTOR, insulin-secretion and IGF pathways showed marked differences in cells grown with SAE-Ti in comparison with cells cultured without Ti. Moreover, the proteomic profiles obtained with SAE-Ti were compared over time. The affected proteins were related to adhesion, immunity, oxidative stress, coagulation, angiogenesis, osteogenesis, and extracellular matrix formation functions. The proliferation, mineralization and osteogenic gene expression in HObs cultured with SAE-Ti were characterized in vitro. The results showed that the osteoblasts exposed to this material increase their mineralization rate and expression of COLI, RUNX2, SP7, CTNNB1, CAD13, IGF2, MAPK2, and mTOR. Overall, the observed proteomic profiles can explain the SAE-Ti osteogenic properties, widening our knowledge of key signaling pathways taking part in the early stages of the osseointegration process in this type of implantations.
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Affiliation(s)
- Francisco Romero‐Gavilán
- Department of Industrial Systems Engineering and DesignUniversitat Jaume ICastellón de la PlanaSpain
| | - Andreia Cerqueira
- Department of Industrial Systems Engineering and DesignUniversitat Jaume ICastellón de la PlanaSpain
| | - Iñaki García‐Arnáez
- Department of Polymers and Advanced Materials: Physics, Chemistry and TechnologyUniversidad del País VascoSan SebastiánSpain
| | - Mikel Azkargorta
- Proteomics Platform, CIC bioGUNE, Basque Research and Technology Alliance (BRTA), CIBERehd, ProteoRed‐ISCIIIBizkaia Science and Technology ParkDerioSpain
| | - Félix Elortza
- Proteomics Platform, CIC bioGUNE, Basque Research and Technology Alliance (BRTA), CIBERehd, ProteoRed‐ISCIIIBizkaia Science and Technology ParkDerioSpain
| | - Mariló Gurruchaga
- Department of Polymers and Advanced Materials: Physics, Chemistry and TechnologyUniversidad del País VascoSan SebastiánSpain
| | - Isabel Goñi
- Department of Polymers and Advanced Materials: Physics, Chemistry and TechnologyUniversidad del País VascoSan SebastiánSpain
| | - Julio Suay
- Department of Industrial Systems Engineering and DesignUniversitat Jaume ICastellón de la PlanaSpain
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Wang L, Wu TH, Hu X, Liu J, Wu D, Miguez PA, Wright JT, Zhang S, Chi JT, Tseng HC, Ko CC. Biomimetic polydopamine-laced hydroxyapatite collagen material orients osteoclast behavior to an anti-resorptive pattern without compromising osteoclasts' coupling to osteoblasts. Biomater Sci 2021; 9:7565-7574. [PMID: 34664567 PMCID: PMC10547016 DOI: 10.1039/d1bm01119g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Polydopamine-assisted modification for bone substitute materials has recently shown great application potential in bone tissue engineering due to its excellent biocompatibility and adhesive properties. A scaffold material's impact on osteoclasts is equally as important as its impact on osteoblasts when considering tissue engineering for bone defect repair, as healthy bone regeneration requires an orchestrated coupling between osteoclasts and osteoblasts. How polydopamine-functionalized bone substitute materials modulate the activity of osteoblast lineage cells has been extensively investigated, but much less is known about their impact on osteoclasts. Moreover, most of the polydopamine-functionalized materials would need to additionally load a biomolecule to exert the modulation on osteoclast activity. Herein, we demonstrated that our biomimetic polydopamine-laced hydroxyapatite collagen (PDHC) scaffold material, which does not need to load additional bioactive agent, is sufficiently able to modulate osteoclast activity in vitro. First, PDHC showed an anti-resorptive potential, characterized by decreased osteoclast differentiation and resorption capacity and changes in osteoclasts' transcriptome profile. Next, cAMP response element-binding protein (CREB) activity was found to mediate PDHC's anti-osteoclastogenic effect. Finally, although PDHC altered clastokines expression pattern of osteoclasts, as revealed by transcriptomic and secretomic analysis, osteoclasts' coupling to osteoblasts was not compromised by PDHC. Collectively, this study demonstrated the PDHC material orients osteoclast behavior to an anti-resorptive pattern without compromising osteoclasts' coupling to osteoblasts. Such a feature is favorable for the net increase of bone mass, which endows the PDHC material with great application potential in preclinical/clinical bone defect repair.
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Affiliation(s)
- Lufei Wang
- Division of Oral and Craniofacial Health Sciences, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, USA
| | - Tai-Hsien Wu
- Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH, USA.
| | - Xiangxiang Hu
- Division of Oral and Craniofacial Health Sciences, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, USA
| | - Jie Liu
- Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH, USA.
| | - Di Wu
- Division of Oral and Craniofacial Health Sciences, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, USA
- Department of Biostatistics, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Patricia A Miguez
- Division of Comprehensive Oral Health, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, USA
| | - John Timothy Wright
- Division of Pediatric and Public Health, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, USA
| | - Shaoping Zhang
- Department of Periodontics, University of Iowa College of Dentistry, Iowa City, IA, USA
| | - Jen-Tsan Chi
- Department of Molecular Genetics and Microbiology, Center for Genomics and Computational Biology, Duke University Medical Center, Durham, NC, USA
| | - Henry C Tseng
- Duke Eye Center and Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - Ching-Chang Ko
- Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH, USA.
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Kitsara M, Tassis G, Papagiannopoulos A, Simon A, Agbulut O, Pispas S. Polysaccharide-Protein Multilayers Based on Chitosan-Fibrinogen Assemblies for Cardiac Cell Engineering. Macromol Biosci 2021; 22:e2100346. [PMID: 34648684 DOI: 10.1002/mabi.202100346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/10/2021] [Indexed: 12/11/2022]
Abstract
The cell and tissue culture substrates play a pivotal role in the regulation of cell-matrix and cell-cell interactions. The surface properties of the materials control a wide variety of cell functions. Amongst various methods, layer-by-layer (LbL) assembly is a versatile surface coating technique for creating controllable bio-coatings. Here, polysaccharide/protein multilayers are proposed, which are fabricated by immersive LbL assembly and based on the chitosan/fibrinogen pair for improving the adhesion and spreading of cardiomyocytes. Two approaches in LbL assembly are employed for clarifying the effect of the bilayers order and their concentration on cardiomyocytes viability and morphology. Fourier transform infrared spectroscopy (FTIR) measurements show that the adsorption of the biopolymers is enhanced during the LbL deposition in a synergistic manner. Contact angle measurements indicate that the multilayers are alternating from less to more hydrophilic behavior depending on the biopolymer that is added last. Confocal microscopy with immunostained fibrinogen reveals that the amount of the protein is higher when the concentration of the immersion solution is increased, however, for low solution concentration it is speculated that interdigitation between the separate biopolymer layers takes place. This work motivates the use of fibrinogen in polysaccharide/protein multilayers for enhanced cytocompatibility in cardiac tissue engineering.
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Affiliation(s)
- Maria Kitsara
- Institut de Biologie Paris-Seine, CNRS UMR 8256, INSERM ERL 1164, Biological Adaptation and Ageing, Sorbonne Université, Paris, 75005, France
| | - George Tassis
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens, 11635, Greece.,Department of Physics, University of Patras, Patras, 26504, Greece
| | - Aristeidis Papagiannopoulos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens, 11635, Greece
| | - Alexandre Simon
- Institut de Biologie Paris-Seine, CNRS UMR 8256, INSERM ERL 1164, Biological Adaptation and Ageing, Sorbonne Université, Paris, 75005, France
| | - Onnik Agbulut
- Institut de Biologie Paris-Seine, CNRS UMR 8256, INSERM ERL 1164, Biological Adaptation and Ageing, Sorbonne Université, Paris, 75005, France
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens, 11635, Greece
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7
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James BD, Allen JB. Sex-Specific Response to Combinations of Shear Stress and Substrate Stiffness by Endothelial Cells In Vitro. Adv Healthc Mater 2021; 10:e2100735. [PMID: 34142471 PMCID: PMC8458248 DOI: 10.1002/adhm.202100735] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 12/25/2022]
Abstract
By using a full factorial design of experiment, the combinatorial effects of biological sex, shear stress, and substrate stiffness on human umbilical vein endothelial cell (HUVEC) spreading and Yes-associated protein 1 (YAP1) activity are able to be efficiently evaluated. Within the range of shear stress (0.5-1.5 Pa) and substrate stiffness (10-100 kPa), male HUVECs are smaller than female HUVECs. Only with sufficient mechanical stimulation do they spread to a similar size. More importantly, YAP1 nuclear localization in female HUVECs is invariant to mechanical stimulation within the range of tested conditions whereas for male HUVECs it increases nonlinearly with increasing shear stress and substrate stiffness. The sex-specific response of HUVECs to combinations of shear stress and substrate stiffness reinforces the need to include sex as a biological variable and multiple mechanical stimuli in experiments, informs the design of precision biomaterials, and offers insight for understanding cardiovascular disease sexual dimorphisms. Moreover, here it is illustrated that different complex mechanical microenvironments can lead to sex-specific phenotypes and sex invariant phenotypes in cultured endothelial cells.
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Affiliation(s)
- Bryan D James
- Department of Materials Science and Engineering, University of Florida, 206 Rhines Hall, PO Box 116400, Gainesville, FL, 32611-6400, USA
| | - Josephine B Allen
- Department of Materials Science and Engineering, University of Florida, 206 Rhines Hall, PO Box 116400, Gainesville, FL, 32611-6400, USA
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8
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Wu X, Tang N, Liu C, Zhao Q, Liu X, Xu Q, Chen C, Sun B, Chen H. Enhancing interactions between cells and hierarchical micro/nanostructured TiO 2films for efficient capture of circulating tumor cells. Biomed Phys Eng Express 2021; 7. [PMID: 34261055 DOI: 10.1088/2057-1976/ac14a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/14/2021] [Indexed: 11/12/2022]
Abstract
Micro/nano hierarchical substrates with different micropillar spacings were designed and prepared for capture of tumor cells. The cell capture efficiency of hierarchical substrates with low-density micropillar arrays was similar to that of nanostructured substrate. Increasing the density of micopillars could significantly improve the capture efficiency. The maximum capture efficiency was achieved on the hierarchical substrate with micropillar spacings of 15μm, but further reducing the micropillar spacings did not increase the cell capture efficiency. It was also found that hierarchical substrates with appropriate spacing of micropillars appeared more favorable for cell attachment and spreading, and thus enhancing the cell-material interaction. These results suggested that optimizing the micropillar arrays, such as the spacing between adjacent micropillars, could give full play to the synergistic effect of hierarchical hybrid micro/nanostructures in the interaction with cells. This study may provide promising guidance to design and optimize micro/nano hierarchical structures of biointerfaces for biomedical application.
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Affiliation(s)
- Xingda Wu
- School of Biomedical Engineering, Guangdong Medical University, Dongguan 523808, People's Republic of China
| | - Nan Tang
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, People's Republic of China
| | - Cuijuan Liu
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, People's Republic of China
| | - Qin Zhao
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, People's Republic of China
| | - Xingyan Liu
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, 523808, People's Republic of China
| | - Qiuyan Xu
- Department of Critical Care Medicine, Central People's Hospital of Zhanjiang, Zhanjiang, 524045 People's Republic of China
| | - Chunmei Chen
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, People's Republic of China
| | - Binying Sun
- The Second Clinical Medical College, Guangdong Medical University, Dongguan, 523808, People's Republic of China
| | - Hongpeng Chen
- School of Biomedical Engineering, Guangdong Medical University, Dongguan 523808, People's Republic of China
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Herzer R, Gebert A, Hempel U, Hebenstreit F, Oswald S, Damm C, Schmidt OG, Medina-Sánchez M. Rolled-Up Metal Oxide Microscaffolds to Study Early Bone Formation at Single Cell Resolution. Small 2021; 17:e2005527. [PMID: 33599055 DOI: 10.1002/smll.202005527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Titanium and its alloys are frequently used to replace structural components of the human body due to their high mechanical strength, low stiffness, and biocompatibility. In particular, the use of porous materials has improved implant stabilization and the promotion of bone. However, it remains unclear which material properties and geometrical cues are optimal for a proper osteoinduction and osseointegration. To that end, transparent tubular microscaffolds are fabricated, mimicking the typical pores of structural implants, with the aim of studying early bone formation and cell-material interactions at the single cell level. Here, a β-stabilized alloy Ti-45Nb (wt%) is used for the microscaffold's fabrication due to its elastic modulus close to that of natural bone. Human mesenchymal stem cell migration, adhesion, and osteogenic differentiation is thus investigated, paying particular attention to the CaP formation and cell-body crystallization, both analyzed via optical and electron microscopy. It is demonstrated that the developed platform is suited for the long-term study of living single cells in an appropriate microenvironment, obtaining in the process deeper insights on early bone formation and providing cues to improve the stability and biocompatibility of current structural implants.
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Affiliation(s)
- Raffael Herzer
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Annett Gebert
- Institute for Complex Materials, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Ute Hempel
- Institut für Physiologische Chemie, MTZ, Medizinische Fakultät der TU Dresden, Fiedlerstraße 42, Dresden, 01307, Germany
| | - Franziska Hebenstreit
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Steffen Oswald
- Institute for Complex Materials, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Christine Damm
- Institute for Metallic Materials, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Oliver G Schmidt
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
- School of Science, TU Dresden, Dresden, 01062, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), TU Chemnitz, Rosenbergstraße 6, Chemnitz, 09126, Germany
| | - Mariana Medina-Sánchez
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
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Alhudaithy S, Abdulmalik S, Kumbar SG, Hoshino K. Design, Fabrication, and Validation of a Petri Dish-Compatible PDMS Bioreactor for the Tensile Stimulation and Characterization of Microtissues. Micromachines (Basel) 2020; 11:E892. [PMID: 32993158 PMCID: PMC7650815 DOI: 10.3390/mi11100892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/11/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022]
Abstract
In this paper, we report on a novel biocompatible micromechanical bioreactor (actuator and sensor) designed for the in situ manipulation and characterization of live microtissues. The purpose of this study was to develop and validate an application-targeted sterile bioreactor that is accessible, inexpensive, adjustable, and easily fabricated. Our method relies on a simple polydimethylsiloxane (PDMS) molding technique for fabrication and is compatible with commonly-used laboratory equipment and materials. Our unique design includes a flexible thin membrane that allows for the transfer of an external actuation into the PDMS beam-based actuator and sensor placed inside a conventional 35 mm cell culture Petri dish. Through computational analysis followed by experimental testing, we demonstrated its functionality, accuracy, sensitivity, and tunable operating range. Through time-course testing, the actuator delivered strains of over 20% to biodegradable electrospun poly (D, L-lactide-co-glycolide) (PLGA) 85:15 non-aligned nanofibers (~91 µm thick). At the same time, the sensor was able to characterize time-course changes in Young's modulus (down to 10-150 kPa), induced by an application of isopropyl alcohol (IPA). Furthermore, the actuator delivered strains of up to 4% to PDMS monolayers (~30 µm thick), simultaneously characterizing their elastic modulus up to ~2.2 MPa. The platform repeatedly applied dynamic (0.23 Hz) tensile stimuli to live Human Dermal Fibroblast (HDF) cells for 12 hours (h) and recorded the cellular reorientation towards two angle regimes, with averages of -58.85° and +56.02°. The device biocompatibility with live cells was demonstrated for one week, with no signs of cytotoxicity. We can conclude that our PDMS bioreactor is advantageous for low-cost tissue/cell culture micromanipulation studies involving mechanical actuation and characterization. Our device eliminates the need for an expensive experimental setup for cell micromanipulation, increasing the ease of live-cell manipulation studies by providing an affordable way of conducting high-throughput experiments without the need to open the Petri dish, reducing manual handling, cross-contamination, supplies, and costs. The device design, material, and methods allow the user to define the operational range based on their targeted samples/application.
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Affiliation(s)
- Soliman Alhudaithy
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA; (S.A.); (S.A.); (S.K.)
- Department of Biomedical Technology, King Saud University, Riyadh 12372, Saudi Arabia
| | - Sama Abdulmalik
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA; (S.A.); (S.A.); (S.K.)
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT 06030, USA
| | - Sangamesh G. Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA; (S.A.); (S.A.); (S.K.)
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT 06030, USA
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Kazunori Hoshino
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA; (S.A.); (S.A.); (S.K.)
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11
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Wang Z, Florczyk SJ. Freeze-FRESH: A 3D Printing Technique to Produce Biomaterial Scaffolds with Hierarchical Porosity. Materials (Basel) 2020; 13:E354. [PMID: 31940933 PMCID: PMC7013579 DOI: 10.3390/ma13020354] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 02/05/2023]
Abstract
Tissues are organized in hierarchical structures comprised of nanoscale, microscale, and macroscale features. Incorporating hierarchical structures into biomaterial scaffolds may enable better resemblance of native tissue structures and improve cell interaction, but it is challenging to produce such scaffolds using a single conventional scaffold production technique. We developed the Freeze-FRESH (FF) technique that combines FRESH 3D printing (3DP) and freeze-casting to produce 3D printed scaffolds with microscale pores in the struts. FF scaffolds were produced by extrusion 3DP using a support bath at room temperature, followed by freezing and lyophilization, then the FF scaffolds were recovered from the bath and crosslinked. The FF scaffolds had a hierarchical pore structure from the combination of microscale pores throughout the scaffold struts and macroscale pores in the printed design, while control scaffolds had only macroscale pores. FF scaffolds frozen at -20 °C and -80 °C had similar pore sizes, due to freezing in the support bath. The -20 °C and -80 °C FF scaffolds had porous struts with 63.55% ± 2.59% and 56.72% ± 13.17% strut porosity, respectively, while control scaffolds had a strut porosity of 3.15% ± 2.20%. The -20 °C and -80 °C FF scaffolds were softer than control scaffolds: they had pore wall stiffness of 0.17 ± 0.06 MPa and 0.23 ± 0.05 MPa, respectively, compared to 1.31 ± 0.39 MPa for the control. The FF scaffolds had increased resilience in bending compared with control. FF scaffolds supported MDA-MB-231 cell growth and had significantly greater cell numbers than control scaffolds. Cells formed clusters on the porous struts of FF scaffolds and had similar morphologies as the freeze cast scaffolds. The FF technique successfully introduced microscale porosity into the 3DP scaffold struts to produce hierarchical pore structures that enhanced MDA-MB-231 growth.
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Affiliation(s)
- Zi Wang
- Department of Materials Science & Engineering, University of Central Florida, Orlando, FL 32816, USA
| | - Stephen J. Florczyk
- Department of Materials Science & Engineering, University of Central Florida, Orlando, FL 32816, USA
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32827, USA
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12
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Lin X, Chen Q, Xiao Y, Gao Y, Ahmed I, Li M, Li H, Zhang K, Qiu W, Liu X, Boccaccini AR, Qian A. Phosphate glass fibers facilitate proliferation and osteogenesis through Runx2 transcription in murine osteoblastic cells. J Biomed Mater Res A 2019; 108:316-326. [PMID: 31628823 DOI: 10.1002/jbm.a.36818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 10/03/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022]
Abstract
Cell-material interactions and compatibility are important aspects of bioactive materials for bone tissue engineering. Phosphate glass fiber (PGF) is an attractive inorganic filler with fibrous structure and tunable composition, which has been widely investigated as a bioactive filler for bone repair applications. However, the interaction of osteoblasts with PGFs has not been widely investigated to elucidate the osteogenic mechanism of PGFs. In this study, different concentrations of short PGFs with interlaced oriented topography were cocultured with MC3T3-E1 cells for different periods, and the synergistic effects of fiber topography and ionic product of PGFs on osteoblast responses including cell adhesion, spreading, proliferation, and osteogenic differentiation were investigated. It was found that osteoblasts were more prone to adhere on PGFs through Vinculin protein, leading to enhanced cell proliferation with polygonal cell shape and spreading cellular actin filaments. In addition, osteoblasts incubated on PGF meshes showed enhanced alkaline phosphatase activity, extracellular matrix mineralization, and increased expression of osteogenesis-related marker genes, which could be attributed to the Wnt/β-catenin/Runx2 signaling pathway. This study elucidated the possible mechanism of PGF on triggering specific osteoblast behavior, which would be highly beneficial for designing PGF-based bone graft substitutes with excellent osteogenic functions.
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Affiliation(s)
- Xiao Lin
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Qiang Chen
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, China
| | - Yunyun Xiao
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yongguang Gao
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Ifty Ahmed
- Faculty of Engineering, Advanced Materials Research Group, University of Nottingham, Nottingham, UK
| | - Meng Li
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Hui Li
- Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Kewen Zhang
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Wuxia Qiu
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Xianhu Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Airong Qian
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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13
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Abstract
Understanding cell-material interactions is a prerequisite for the development of bio-inspired materials for tissue regeneration. While nanofibrous biomaterials have been widely used in tissue regeneration, the effects of nanofibrous architecture on stem cell behaviors are largely ambiguous because the previous biomaterial systems used for nanofiber-cell interactions could not exclude the interference of cell-cell interactions. In this study, we developed a unique micropatterning technology to confine one single stem cell in a microisland of the nanofibrous micropatterned matrix; therefore, eliminating any potential intercellular communications. The nanofibrous micropatterned matrix, which mimicked both the physical architecture and chemical composition of natural extracellular matrix, was fabricated by a combination of electrospinning, chemical crosslinking, and UV-initiated photolithography. Compared to the non-nanofibrous architecture, a bone marrow mesenchymal stem cell (BMSC) cultured on the nanofibrous microisland exhibited a more in vivo-like morphology, a smaller spreading area, less focal adhesion, and fewer stress fibers. The BMSC cultured on the nanofibrous microisland also had higher alkaline phosphatase activity, indicating nanofibrous architecture promoted BMSC differentiation. A mechanistic study reveals that nanofibers regulate single BMSC osteogenesis via the FAK/RhoA/YAP1 pathway. The nanofibrous micropatterned matrix developed in this study is an excellent platform to promote the fundamental understanding of cell-matrix interactions, ultimately provide valuable insights for the development of novel bio-inspired scaffolds for tissue regeneration.
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Affiliation(s)
- Bei Chang
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, Texas 75246, United States
| | - Chi Ma
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, Texas 75246, United States
| | - Xiaohua Liu
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, Texas 75246, United States
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14
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Zhang X, Song J, Klymov A, Zhang Y, de Boer L, Jansen JA, van den Beucken JJ, Yang F, Zaat SA, Leeuwenburgh SC. Monitoring local delivery of vancomycin from gelatin nanospheres in zebrafish larvae. Int J Nanomedicine 2018; 13:5377-5394. [PMID: 30254441 PMCID: PMC6143646 DOI: 10.2147/ijn.s168959] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Infections such as biomaterial-associated infection and osteomyelitis are often associated with intracellular survival of bacteria (eg, Staphylococcus aureus). Treatment of these infections remains a major challenge due to the low intracellular efficacy of many antibiotics. Therefore, local delivery systems are urgently required to improve the therapeutic efficacy of antibiotics by enabling their intracellular delivery. Purpose To assess the potential of gelatin nanospheres as carriers for local delivery of vancomycin into macrophages of zebrafish larvae in vivo and into THP-1-derived macrophages in vitro using fluorescence microscopy. Materials and methods Fluorescently labeled gelatin nanospheres were prepared and injected into transgenic zebrafish larvae with fluorescent macrophages. Both the biodistribution of gelatin nanospheres in zebrafish larvae and the co-localization of vancomycin-loaded gelatin nanospheres with zebrafish macrophages in vivo and uptake by THP-1-derived macrophages in vitro were studied. In addition, the effect of treatment with vancomycin-loaded gelatin nanospheres on survival of S. aureus-infected zebrafish larvae was investigated. Results Internalization of vancomycin-loaded gelatin nanospheres by macrophages was observed qualitatively both in vivo and in vitro. Systemically delivered vancomycin, on the other hand, was hardly internalized by macrophages without the use of gelatin nanospheres. Treatment with a single dose of vancomycin-loaded gelatin nanospheres delayed the mortality of S. aureus-infected zebrafish larvae, indicating the improved therapeutic efficacy of vancomycin against (intracellular) S. aureus infection in vivo. Conclusion The present study demonstrates that gelatin nanospheres can be used to facilitate local and intracellular delivery of vancomycin.
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Affiliation(s)
- Xiaolin Zhang
- Department of Medical Microbiology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.,Department of Biomaterials Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, the Netherlands
| | - Jiankang Song
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands,
| | - Alexey Klymov
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands,
| | - Yang Zhang
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands,
| | - Leonie de Boer
- Department of Medical Microbiology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - John A Jansen
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands,
| | | | - Fang Yang
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands,
| | - Sebastian Aj Zaat
- Department of Medical Microbiology, Amsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Sander Cg Leeuwenburgh
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, the Netherlands,
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15
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Hampe AE, Li Z, Sethi S, Lein PJ, Seker E. A Microfluidic Platform to Study Astrocyte Adhesion on Nanoporous Gold Thin Films. Nanomaterials (Basel) 2018; 8:E452. [PMID: 29933551 PMCID: PMC6070884 DOI: 10.3390/nano8070452] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/14/2018] [Accepted: 06/16/2018] [Indexed: 12/19/2022]
Abstract
Nanoporous gold (np-Au) electrode coatings have shown improved neural electrophysiological recording fidelity in vitro, in part due to reduced surface coverage by astrocytes. This reduction in astrocytic spreading has been attributed to the influence of electrode nanostructure on focal adhesion (FA) formation. This study describes the development and use of a microfluidic flow cell for imposing controllable hydrodynamic shear on astrocytes cultured on gold surfaces of different morphologies, in order to study the influence of nanostructure on astrocyte adhesion strength as a function of np-Au electrode morphology. Astrocyte detachment (a surrogate for adhesion strength) monotonically increased as feature size was reduced from planar surfaces to np-Au, demonstrating that adhesion strength is dependent on nanostructure. Putative mechanisms responsible for this nanostructure-driven detachment phenomenon are also discussed.
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Affiliation(s)
- Alexander E Hampe
- Department of Biomedical Engineering, University of California-Davis, Davis, CA 95616, USA.
| | - Zidong Li
- Department of Biomedical Engineering, University of California-Davis, Davis, CA 95616, USA.
| | - Sunjay Sethi
- Department of Molecular Biosciences, University of California-Davis, Davis, CA 95616, USA.
| | - Pamela J Lein
- Department of Molecular Biosciences, University of California-Davis, Davis, CA 95616, USA.
| | - Erkin Seker
- Department of Electrical and Computer Engineering, University of California-Davis, Davis, CA 95616, USA.
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16
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Guo T, Ringel JP, Lim CG, Bracaglia LG, Noshin M, Baker HB, Powell DA, Fisher JP. Three dimensional extrusion printing induces polymer molecule alignment and cell organization within engineered cartilage. J Biomed Mater Res A 2018; 106:2190-2199. [PMID: 29659132 DOI: 10.1002/jbm.a.36426] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 03/15/2018] [Accepted: 03/29/2018] [Indexed: 12/19/2022]
Abstract
Proper cell-material interactions are critical to remain cell function and thus successful tissue regeneration. Many fabrication processes have been developed to create microenvironments to control cell attachment and organization on a three-dimensional (3D) scaffold. However, these approaches often involve heavy engineering and only the surface layer can be patterned. We found that 3D extrusion based printing at high temperature and pressure will result an aligned effect on the polymer molecules, and this molecular arrangement will further induce the cell alignment and different differentiation capacities. In particular, articular cartilage tissue is known to have zonal collagen fiber and cell orientation to support different functions, where collagen fibers and chondrocytes align parallel, randomly, and perpendicular, respectively, to the surface of the joint. Therefore, cell alignment was evaluated in a cartilage model in this study. We used small angle X-ray scattering analysis to substantiate the polymer molecule alignment phenomenon. The cellular response was evaluated both in vitro and in vivo. Seeded mesenchymal stem cells (MSCs) showed different morphology and orientation on scaffolds, as a combined result of polymer molecule alignment and printed scaffold patterns. Gene expression results showed improved superficial zonal chondrogenic marker expression in parallel-aligned group. The cell alignment was successfully maintained in the animal model after 7 days with distinct MSC morphology between the casted and parallel printed scaffolds. This 3D printing induced polymer and cell alignment will have a significant impact on developing scaffold with controlled cell-material interactions for complex tissue engineering while avoiding complicated surface treatment, and therefore provides new concept for effective tissue repairing in future clinical applications. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2190-2199, 2018.
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Affiliation(s)
- Ting Guo
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
| | - Julia P Ringel
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
| | - Casey G Lim
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
| | - Laura G Bracaglia
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
| | - Maeesha Noshin
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
| | - Hannah B Baker
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
| | - Douglas A Powell
- Department of Laboratory Animal Resources, Division of Research, University of Maryland, College Park, Maryland, 20742
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, 20742.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland, 20742
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17
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Chapman CA, Chen H, Stamou M, Lein PJ, Seker E. Mechanisms of Reduced Astrocyte Surface Coverage in Cortical Neuron-Glia Co-cultures on Nanoporous Gold Surfaces. Cell Mol Bioeng 2016; 9:433-42. [PMID: 27795742 DOI: 10.1007/s12195-016-0449-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nanoporous gold (np-Au) is a promising multifunctional material for neural electrodes. We have previously shown that np-Au nanotopography reduces astrocyte surface coverage (linked to undesirable gliosis) while maintaining high neuronal coverage in a cortical primary neuron-glia co-culture model as long as two weeks in vitro. Here, we investigate the potential influence of secreted soluble factors from cells grown on np-Au on the cell type-specific surface coverage of cells grown on conventional tissue culture plastic and test the hypothesis that secretion of factors is responsible for inhibiting astrocyte coverage on np-Au. In order to assess whether factors secreted from cells grown on np-Au surfaces reduced surface coverage by astrocytes, we seeded fresh primary rat neuron-glia co-cultures on conventional polystyrene culture dishes, but maintained the cells in conditioned media from co-cultures grown on np-Au surfaces. After one week in vitro, a preferential reduction in astrocyte surface coverage was not observed, suggesting that soluble factors are not playing a role. In contrast, four hours after cell seeding there were a significant number of non-adhered, yet still viable, cells for the cultures on np-Au surfaces. We hypothesize that the non-adherent cells are mainly astrocytes, because: (i) there was no difference in neuronal cell coverage between np-Au and pl-Au for long culture durations and (ii) neurons are post-mitotic and not expected to increase in number upon attaching to the surface. Overall, the results suggest that the np-Au topography leads to preferential neuronal attachment shortly after cell seeding and limits astrocyte-specific np-Au surface coverage at longer culture durations.
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18
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Sheikh Z, Brooks PJ, Barzilay O, Fine N, Glogauer M. Macrophages, Foreign Body Giant Cells and Their Response to Implantable Biomaterials. Materials (Basel) 2015; 8:5671-5701. [PMID: 28793529 PMCID: PMC5512621 DOI: 10.3390/ma8095269] [Citation(s) in RCA: 384] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 08/20/2015] [Accepted: 08/21/2015] [Indexed: 12/23/2022]
Abstract
All biomaterials, when implanted in vivo, elicit cellular and tissue responses. These responses include the inflammatory and wound healing responses, foreign body reactions, and fibrous encapsulation of the implanted materials. Macrophages are myeloid immune cells that are tactically situated throughout the tissues, where they ingest and degrade dead cells and foreign materials in addition to orchestrating inflammatory processes. Macrophages and their fused morphologic variants, the multinucleated giant cells, which include the foreign body giant cells (FBGCs) are the dominant early responders to biomaterial implantation and remain at biomaterial-tissue interfaces for the lifetime of the device. An essential aspect of macrophage function in the body is to mediate degradation of bio-resorbable materials including bone through extracellular degradation and phagocytosis. Biomaterial surface properties play a crucial role in modulating the foreign body reaction in the first couple of weeks following implantation. The foreign body reaction may impact biocompatibility of implantation devices and may considerably impact short- and long-term success in tissue engineering and regenerative medicine, necessitating a clear understanding of the foreign body reaction to different implantation materials. The focus of this review article is on the interactions of macrophages and foreign body giant cells with biomaterial surfaces, and the physical, chemical and morphological characteristics of biomaterial surfaces that play a role in regulating the foreign body response. Events in the foreign body response include protein adsorption, adhesion of monocytes/macrophages, fusion to form FBGCs, and the consequent modification of the biomaterial surface. The effect of physico-chemical cues on macrophages is not well known and there is a complex interplay between biomaterial properties and those that result from interactions with the local environment. By having a better understanding of the role of macrophages in the tissue healing processes, especially in events that follow biomaterial implantation, we can design novel biomaterials-based tissue-engineered constructs that elicit a favorable immune response upon implantation and perform for their intended applications.
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Affiliation(s)
- Zeeshan Sheikh
- Faculty of Dentistry, Matrix Dynamics Group, University of Toronto, 150 College Street, Toronto, ON M5S 3E2, Canada.
| | - Patricia J Brooks
- Faculty of Dentistry, Matrix Dynamics Group, University of Toronto, 150 College Street, Toronto, ON M5S 3E2, Canada.
| | - Oriyah Barzilay
- Faculty of Dentistry, Matrix Dynamics Group, University of Toronto, 150 College Street, Toronto, ON M5S 3E2, Canada.
| | - Noah Fine
- Faculty of Dentistry, Matrix Dynamics Group, University of Toronto, 150 College Street, Toronto, ON M5S 3E2, Canada.
| | - Michael Glogauer
- Faculty of Dentistry, Matrix Dynamics Group, University of Toronto, 150 College Street, Toronto, ON M5S 3E2, Canada.
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19
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Xu X, Kratz K, Wang W, Li Z, Roch T, Jung F, Lendlein A, Ma N. Cultivation and spontaneous differentiation of rat bone marrow-derived mesenchymal stem cells on polymeric surfaces. Clin Hemorheol Microcirc 2014; 55:143-56. [PMID: 23478225 DOI: 10.3233/ch-131698] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Accumulating evidence demonstrated many physical and chemical cues from the local microenvironment could influence mesenchymal stem cells (MSCs) maintenance and differentiation. In this study, we systematically investigated the interaction of rat bone marrow-derived mesenchymal stem cells (rBMSCs) and polymeric substrates. Adhesion, proliferative capacity, cytoskeleton alteration, cytotoxicity, apoptosis, senescence, and adipogenesis potential of rBMSCs were determined on these polymeric inserts prepared from polyetherurethane (PEU) and poly(ether imide) (PEI). Inserts for culture plates were applied to ensure that the rBMSCs were solely in contact to the tested material. The explored inserts exhibited advancing contact angles of 84° (PEU) and 93° (PEI). Finally, the micromechanical properties determined by atomic force microscopy (AFM) indentation varied in the range from 6 GPa (PEU) to 13 GPa (PEI). We found that both PEU and PEI showed a good cell compatibility to rBMSCs. rBMSCs could adherent on both polymeric surfaces with the similar adhesion ratio and subsequent division rate. However, cells cultured on PEU exhibited higher apoptosis level and senescence ratio, which resulted in lower cell density (22061 ± 3000/cm(2)) compared to that on PEI (68395 ± 8000/cm(2)) after 20 days cultivation. Morphological differences of rBMSCs were detected after 5 days cultivation. Cells on PEU exhibited flat and enlarged shape with rearranged filamentous actin (F-actin) cytoskeleton, while cells on PEI and tissue culture plate (TCP) had similar spindle-shape morphology and oriented F-actin. After 20 days, lipid droplets were spontaneously formed in rBMSCs on PEU and PEI but not on TCP. Both PEU and PEI might trigger rBMSCs towards spontaneous adipogenic commitment, whereas PEI provided better cell compatibility on rBMSCs apoptosis, senescence and proliferation.
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Affiliation(s)
- Xun Xu
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
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20
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Terriza A, Vilches-Pérez JI, González-Caballero JL, Orden EDL, Yubero F, Barranco A, Gonzalez-Elipe AR, Vilches J, Salido M. Osteoblasts Interaction with PLGA Membranes Functionalized with Titanium Film Nanolayer by PECVD. In vitro Assessment of Surface Influence on Cell Adhesion during Initial Cell to Material Interaction. Materials (Basel) 2014; 7:1687-1708. [PMID: 28788538 PMCID: PMC5453252 DOI: 10.3390/ma7031687] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 02/10/2014] [Accepted: 02/25/2014] [Indexed: 01/05/2023]
Abstract
New biomaterials for Guided Bone Regeneration (GBR), both resorbable and non-resorbable, are being developed to stimulate bone tissue formation. Thus, the in vitro study of cell behavior towards material surface properties turns a prerequisite to assess both biocompatibility and bioactivity of any material intended to be used for clinical purposes. For this purpose, we have developed in vitro studies on normal human osteoblasts (HOB®) HOB® osteoblasts grown on a resorbable Poly (lactide-co-glycolide) (PLGA) membrane foil functionalized by a very thin film (around 15 nm) of TiO2 (i.e., TiO2/PLGA membranes), designed to be used as barrier membrane. To avoid any alteration of the membranes, the titanium films were deposited at room temperature in one step by plasma enhanced chemical vapour deposition. Characterization of the functionalized membranes proved that the thin titanium layer completely covers the PLGA foils that remains practically unmodified in their interior after the deposition process and stands the standard sterilization protocols. Both morphological changes and cytoskeletal reorganization, together with the focal adhesion development observed in HOB osteoblasts, significantly related to TiO2 treated PLGA in which the Ti deposition method described has revealed to be a valuable tool to increase bioactivity of PLGA membranes, by combining cell nanotopography cues with the incorporation of bioactive factors.
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Affiliation(s)
- Antonia Terriza
- Nanotechnology on Surfaces Laboratory, Instituto de Ciencia de Materiales de Sevilla (CSIC-Univ. Sevilla), Avda. Americo Vespucio 49, E-41092 Seville, Spain.
| | - José I Vilches-Pérez
- Facultad de Medicina, Universidad de Cádiz, Servicios Centrales de Investigación en Ciencias de la Salud, Dr. Marañon 3. 11002 Cádiz, Spain.
| | - Juan L González-Caballero
- Facultad de Medicina, Universidad de Cádiz, Servicios Centrales de Investigación en Ciencias de la Salud, Dr. Marañon 3. 11002 Cádiz, Spain.
| | - Emilio de la Orden
- Facultad de Medicina, Universidad de Cádiz, Servicios Centrales de Investigación en Ciencias de la Salud, Dr. Marañon 3. 11002 Cádiz, Spain.
| | - Francisco Yubero
- Nanotechnology on Surfaces Laboratory, Instituto de Ciencia de Materiales de Sevilla (CSIC-Univ. Sevilla), Avda. Americo Vespucio 49, E-41092 Seville, Spain.
| | - Angel Barranco
- Nanotechnology on Surfaces Laboratory, Instituto de Ciencia de Materiales de Sevilla (CSIC-Univ. Sevilla), Avda. Americo Vespucio 49, E-41092 Seville, Spain.
| | - Agustín R Gonzalez-Elipe
- Nanotechnology on Surfaces Laboratory, Instituto de Ciencia de Materiales de Sevilla (CSIC-Univ. Sevilla), Avda. Americo Vespucio 49, E-41092 Seville, Spain.
| | - José Vilches
- Facultad de Medicina, Universidad de Cádiz, Servicios Centrales de Investigación en Ciencias de la Salud, Dr. Marañon 3. 11002 Cádiz, Spain.
| | - Mercedes Salido
- Facultad de Medicina, Universidad de Cádiz, Servicios Centrales de Investigación en Ciencias de la Salud, Dr. Marañon 3. 11002 Cádiz, Spain.
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21
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Yao X, Peng R, Ding J. Cell-material interactions revealed via material techniques of surface patterning. Adv Mater 2013; 25:5257-5286. [PMID: 24038153 DOI: 10.1002/adma.201301762] [Citation(s) in RCA: 358] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 07/15/2013] [Indexed: 06/02/2023]
Abstract
Cell-material interactions constitute a key fundamental topic in biomaterials study. Various cell cues and matrix cues as well as soluble factors regulate cell behaviors on materials. These factors are coupled with each other as usual, and thus it is very difficult to unambiguously elucidate the role of each regulator. The recently developed material techniques of surface patterning afford unique ways to reveal the underlying science. This paper reviews the pertinent material techniques to fabricate patterns of microscale and nanoscale resolutions, and corresponding cell studies. Some issues are emphasized, such as cell localization on patterned surfaces of chemical contrast, and effects of cell shape, cell size, cell-cell contact, and seeding density on differentiation of stem cells. Material cues to regulate cell adhesion, cell differentiation and other cell events are further summed up. Effects of some physical properties, such as surface topography and matrix stiffness, on cell behaviors are also discussed; nanoscaled features of substrate surfaces to regulate cell fate are summarized as well. The pertinent work sheds new insight into the cell-material interactions, and is stimulating for biomaterial design in regenerative medicine, tissue engineering, and high-throughput detection, diagnosis, and drug screening.
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Affiliation(s)
- Xiang Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Advanced Materials Laboratory, Fudan University, 200433, Shanghai, China
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22
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Sachar A, Strom TA, San Miguel S, Serrano MJ, Svoboda KKH, Liu X. Cell-matrix and cell-cell interactions of human gingival fibroblasts on three-dimensional nanofibrous gelatin scaffolds. J Tissue Eng Regen Med 2012; 8:862-73. [PMID: 22888047 DOI: 10.1002/term.1588] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 07/04/2012] [Indexed: 11/06/2022]
Abstract
An in-depth understanding of the interactions between cells and three-dimensional (3D) matrices (scaffolds) is pivotal to the development of novel biomaterials for tissue regeneration. However, it remains a challenge to find suitable biomimetic substrates and tools to observe cell-material and cell-cell interactions on 3D matrices. In the present study, we developed biomimetic nanofibrous 3D gelatin scaffolds (3D-NF-GS) and utilized confocal microscopy combined with a quantitative analysis approach to explore cell-matrix and cell-cell interactions on the 3D-NF-GS. Human gingival fibroblasts (HGFs) migrated throughout the 3D-NF-GS by 5 days and formed stable focal adhesions by 14 days. The focal adhesions were detected using integrin-β1, phospho-paxillin and vinculin expression, which were quantified from specific wavelength photon data generated using a spectral separation confocal microscope. As the cells became more confluent after 14 days of culture, cell-cell communication via gap junctions increased significantly. Collagen I matrix production by HGFs on 3D-NF-GS was visualized and quantified using a novel approach incorporating TRITC label in the scaffolds. Based on confocal microscopy, this study has developed qualitative and quantitative methods to study cell-matrix and cell-cell interactions on biomimetic 3D matrices, which provides valuable insights for the development of appropriate scaffolds for tissue regeneration.
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Affiliation(s)
- Ashneet Sachar
- Department of Biomedical Sciences, Baylor College of Dentistry, Texas A&M University Health Sciences Center, Dallas, TX, USA
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