1
|
Dhandapani VS, Subbiah R, Thangavel E, Kim CL, Kang KM, Veeraraghavan V, Park K, Kim DE, Park D, Kim B. Effect of Target Power on Microstructure, Tribological Performance and Biocompatibility of Magnetron Sputtered Amorphous Carbon Coatings. Materials (Basel) 2023; 16:5788. [PMID: 37687480 PMCID: PMC10489061 DOI: 10.3390/ma16175788] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023]
Abstract
The tribological properties and preosteoblast behavior of an RF magnetron-sputtered amorphous carbon coating on a Si (100) substrate were evaluated. The graphite target power was varied from 200 to 500 W to obtain various coating structures. The amorphous nature of the coatings was confirmed via Raman analysis. The contact angle also increased from 58º to 103º, which confirmed the transformation of the a-C surface from a hydrophilic to hydrophobic nature with an increasing graphite target power. A minimum wear rate of about 4.73 × 10-8 mm3/N*mm was obtained for an a-C coating deposited at a 300 W target power. The 300 W and 400 W target power coatings possessed good tribological properties, and the 500 W coating possessed better cell viability and adhesion on the substrate. The results suggest that the microstructure, wettability, tribological behavior and biocompatibility of the a-C coating were highly dependent on the target power of the graphite. A Finite Element Analysis (FEA) showed a considerable increase in the Von Mises stress as the mesh size decreased. Considering both the cell viability and tribological properties, the 400 W target power coating was identified to have the best tribological property as well as biocompatibility.
Collapse
Affiliation(s)
- Vishnu Shankar Dhandapani
- Department of Electromechanical Convergence Engineering, Korea University of Technology and Education, Cheonan 31253, Republic of Korea
- School of Mechatronics Engineering, Korea University of Technology and Education, Cheonan 31253, Republic of Korea
| | - Ramesh Subbiah
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejon 34113, Republic of Korea
| | - Elangovan Thangavel
- Smart Energy Material Laboratory (SEML), Department of Energy Science and Technology, Periyar University, Salem 636011, India
| | - Chang-Lae Kim
- Department of Mechanical Engineering, Chosun University, Gwangiu 61452, Republic of Korea
| | - Kyoung-Mo Kang
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | | | - Kwideok Park
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Department of Biomedical Engineering, Korea University of Science and Technology (UST), Daejon 34113, Republic of Korea
| | - Dae-Eun Kim
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Dongkyou Park
- Department of Electromechanical Convergence Engineering, Korea University of Technology and Education, Cheonan 31253, Republic of Korea
| | - Byungki Kim
- School of Mechatronics Engineering, Korea University of Technology and Education, Cheonan 31253, Republic of Korea
| |
Collapse
|
2
|
Angeloni L, Popa B, Nouri-Goushki M, Minneboo M, Zadpoor AA, Ghatkesar MK, Fratila-Apachitei LE. Fluidic Force Microscopy and Atomic Force Microscopy Unveil New Insights into the Interactions of Preosteoblasts with 3D-Printed Submicron Patterns. Small 2023; 19:e2204662. [PMID: 36373704 DOI: 10.1002/smll.202204662] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Physical patterns represent potential surface cues for promoting osteogenic differentiation of stem cells and improving osseointegration of orthopedic implants. Understanding the early cell-surface interactions and their effects on late cellular functions is essential for a rational design of such topographies, yet still elusive. In this work, fluidic force microscopy (FluidFM) and atomic force microscopy (AFM) combined with optical and electron microscopy are used to quantitatively investigate the interaction of preosteoblasts with 3D-printed patterns after 4 and 24 h of culture. The patterns consist of pillars with the same diameter (200 nm) and interspace (700 nm) but distinct heights (500 and 1000 nm) and osteogenic properties. FluidFM reveals a higher cell adhesion strength after 24 h of culture on the taller pillars (32 ± 7 kPa versus 21.5 ± 12.5 kPa). This is associated with attachment of cells partly on the sidewalls of these pillars, thus requiring larger normal forces for detachment. Furthermore, the higher resistance to shear forces observed for these cells indicates an enhanced anchorage and can be related to the persistence and stability of lamellipodia. The study explains the differential cell adhesion behavior induced by different pillar heights, enabling advancements in the rational design of osteogenic patterns.
Collapse
Affiliation(s)
- Livia Angeloni
- Department of Precision and Microsystems Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| | - Bogdan Popa
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| | - Mahdiyeh Nouri-Goushki
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| | - Michelle Minneboo
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| | - Amir A Zadpoor
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| | - Murali K Ghatkesar
- Department of Precision and Microsystems Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| | - Lidy E Fratila-Apachitei
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628CD, The Netherlands
| |
Collapse
|
3
|
Saito M, Hirano M, Izumi T, Mori Y, Ito K, Saitoh Y, Terada N, Sato T, Sukegawa J. Cytoskeletal Protein 4.1G Is Essential for the Primary Ciliogenesis and Osteoblast Differentiation in Bone Formation. Int J Mol Sci 2022; 23:ijms23042094. [PMID: 35216233 PMCID: PMC8878336 DOI: 10.3390/ijms23042094] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/06/2022] [Accepted: 02/10/2022] [Indexed: 12/04/2022] Open
Abstract
The primary cilium is a hair-like immotile organelle with specific membrane receptors, including the receptor of Hedgehog signaling, smoothened. The cilium organized in preosteoblasts promotes differentiation of the cells into osteoblasts (osteoblast differentiation) by mediating Hedgehog signaling to achieve bone formation. Notably, 4.1G is a plasma membrane-associated cytoskeletal protein that plays essential roles in various tissues, including the peripheral nervous system, testis, and retina. However, its function in the bone remains unexplored. In this study, we identified 4.1G expression in the bone. We found that, in the 4.1G-knockout mice, calcium deposits and primary cilium formation were suppressed in the trabecular bone, which is preosteoblast-rich region of the newborn tibia, indicating that 4.1G is a prerequisite for osteoblast differentiation by organizing the primary cilia in preosteoblasts. Next, we found that the primary cilium was elongated in the differentiating mouse preosteoblast cell line MC3T3-E1, whereas the knockdown of 4.1G suppressed its elongation. Moreover, 4.1G-knockdown suppressed the induction of the cilia-mediated Hedgehog signaling and subsequent osteoblast differentiation. These results demonstrate a new regulatory mechanism of 4.1G in bone formation that promotes the primary ciliogenesis in the differentiating preosteoblasts and induction of cilia-mediated osteoblast differentiation, resulting in bone formation at the newborn stage.
Collapse
Affiliation(s)
- Masaki Saito
- Department of Molecular Pharmacology, Tohoku University School of Medicine, Sendai 980-8575, Japan; (M.H.); (T.I.); (T.S.)
- Correspondence: ; Tel.: +81-22-717-8207
| | - Marina Hirano
- Department of Molecular Pharmacology, Tohoku University School of Medicine, Sendai 980-8575, Japan; (M.H.); (T.I.); (T.S.)
- Department of Human Health and Nutrition, Shokei Gakuin University, Natori 981-1295, Japan;
| | - Tomohiro Izumi
- Department of Molecular Pharmacology, Tohoku University School of Medicine, Sendai 980-8575, Japan; (M.H.); (T.I.); (T.S.)
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan; (Y.M.); (K.I.)
| | - Kentaro Ito
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan; (Y.M.); (K.I.)
| | - Yurika Saitoh
- Center for Medical Education, Teikyo University of Science, Adachi-ku, Tokyo 120-0045, Japan;
| | - Nobuo Terada
- Health Science Division, Department of Medical Sciences, Shinshu University Graduate School of Medicine, Science and Technology, Matsumoto 390-0802, Japan;
| | - Takeya Sato
- Department of Molecular Pharmacology, Tohoku University School of Medicine, Sendai 980-8575, Japan; (M.H.); (T.I.); (T.S.)
| | - Jun Sukegawa
- Department of Human Health and Nutrition, Shokei Gakuin University, Natori 981-1295, Japan;
| |
Collapse
|
4
|
Panda AK, Basu B. Functionalized Fluoropolymer-Compatibilized Elastomeric Bilayer Composites for Osteochondral Repair: Unraveling the Role of Substrate Stiffness and Functionalities. ACS Appl Bio Mater 2021; 4:8543-8558. [PMID: 35005914 DOI: 10.1021/acsabm.1c01021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The osteochondral lesions and osteoarthritis-related complications continue to be clinically relevant challenges to be addressed by the biomaterials community. Hydrogel-based scaffolds have been widely investigated to enhance osteochondral regeneration, but the inferior mechanical properties together with poor functional stability are the major constraints in their clinical translation. The development of osteochondral implants with natural tissue-mimicking mechanical properties remains largely unexplored. In this perspective, the present study demonstrates a strategy to develop a bilayer osteochondral implant with an elastically stiff composite (poly(vinylidene difluoride)-reinforced BaTiO3, PVDF/BT) and elastically compliant composite (maleic anhydride-functionalized PVDF/thermoplastic polyurethane/BaTiO3, m-PVDF/TPU/BT). The compositional variation in polymer composites allowed the elastic modulus of the hybrid bilayer construct to vary from ∼2 GPa to ∼90 MPa, which enabled a better understanding of the substrate-stiffness-dependent cellular behavior and maturation of preosteoblasts and chondrocytes. The cellular functionalities on PVDF-based polymer matrices have been benchmarked against ultrahigh-molecular-weight polyethylene (UHMWPE), which is clinically used for a wide spectrum of orthopedic applications. The increased alkaline phosphatase (ALP) activity, collagen synthesis, and matrix mineralization confirmed the early differentiation of preosteoblasts on the PVDF/BT matrix with subchondral bone-like mechanical properties. On the contrary, the upregulated chondrogenic functionalities were recorded on m-PVDF/TPU/BT with an elevated level of collagen content, glycosaminoglycans, and proteoglycans. Emphasis has been laid on probing the regulation of the osteochondral behavior using tailored substrate stiffness and functionalities using compatibilized fluoropolymer-based elastomeric composites. Taken together, the results of this work conclusively establish the efficacy of the hybrid bilayer composite with natural tissue-mimicking mechanical properties for the functional repair of osteochondral defects.
Collapse
Affiliation(s)
- Asish Kumar Panda
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bangalore, Bangalore 560012, India
| | - Bikramjit Basu
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bangalore, Bangalore 560012, India.,Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, Bangalore 560012, India
| |
Collapse
|
5
|
Zhu Y, Liu X, Wu J, Wong TM, Feng X, Yang C, Wu S, Zheng Y, Liu X, Cheung KMC, Yeung KWK. Micro- and Nanohemispherical 3D Imprints Modulate the Osteogenic Differentiation and Mineralization Tendency of Bone Cells. ACS Appl Mater Interfaces 2019; 11:35513-35524. [PMID: 31507175 DOI: 10.1021/acsami.9b05521] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Surface topography has been reported to play a key role in modulating cell behaviors, yet the mechanism through which it modulates these behaviors is not fully understood, especially in the case of three-dimensional (3D) topographies. In this study, a series of novel hemispherical 3D imprints ranging from the nanoscale to the microscale were prepared on titanium (Ti) surfaces using a customized interfacial lithography method. Mouse embryo osteoblast precursor cells (MC3T3-E1) were selected to investigate the solitary effect of specific hemispherical 3D imprints on cellular behaviors. The results indicated that varied hemispherical 3D imprints can affect the formation of filopodia and the arrangement of the cytoskeleton in different ways. Specifically, they can alter the spreading morphologies of cells and lead to deformation of the nucleus, which eventually affects cell proliferation and osteogenic differentiation. Cells cultured on different hemispherical 3D imprints exhibited promoted proliferation and osteogenic differentiation to different degrees; for example, cells cultured on 90 and 500 nm hemispherical imprints formed abundant filopodia and exhibited the highest alkaline phosphatase activity and osteogenic gene expression, respectively. Four-week tibia implantation also confirmed that 90 nm hemispherical imprints improved the osteogenic ability in vivo compared with an unpatterned Ti substrate. In addition to promoted proliferation, colonization of more cells on the surface of implants and induction of rapid osteogenic differentiation can occur. Our work provides a rational way to balance cell proliferation and differentiation, which can accelerate bone integration of an implant and host tissue.
Collapse
Affiliation(s)
- Yizhou Zhu
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine , The University of Hong Kong , Pokfulam, Hong Kong 999077 , China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics and Traumatology , The University of Hong Kong-Shenzhen Hospital , Shenzhen 518053 , China
| | - Xiangmei Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering , Hubei University , Wuhan 430062 , China
| | - Jun Wu
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics and Traumatology , The University of Hong Kong-Shenzhen Hospital , Shenzhen 518053 , China
| | - Tak Man Wong
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine , The University of Hong Kong , Pokfulam, Hong Kong 999077 , China
| | - Xiaobo Feng
- Department of Orthopaedics, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430022 , China
| | - Cao Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430022 , China
| | - Shuilin Wu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering , Hubei University , Wuhan 430062 , China
- School of Materials Science & Engineering , Tianjin University , Tianjin 300350 , China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
| | - Kenneth M C Cheung
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine , The University of Hong Kong , Pokfulam, Hong Kong 999077 , China
| | - Kelvin W K Yeung
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine , The University of Hong Kong , Pokfulam, Hong Kong 999077 , China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics and Traumatology , The University of Hong Kong-Shenzhen Hospital , Shenzhen 518053 , China
- China Orthopedic Regenerative Medicine Group (CORMed) , Hangzhou 310058 , China
| |
Collapse
|
6
|
Srirussamee K, Mobini S, Cassidy NJ, Cartmell SH. Direct electrical stimulation enhances osteogenesis by inducing Bmp2 and Spp1 expressions from macrophages and preosteoblasts. Biotechnol Bioeng 2019; 116:3421-3432. [PMID: 31429922 PMCID: PMC6899728 DOI: 10.1002/bit.27142] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [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: 03/05/2019] [Revised: 08/03/2019] [Accepted: 08/09/2019] [Indexed: 12/16/2022]
Abstract
The capability of electrical stimulation (ES) in promoting bone regeneration has already been addressed in clinical studies. However, its mechanism is still being investigated and discussed. This study aims to investigate the responses of macrophages (J774A.1) and preosteoblasts (MC3T3-E1) to ES and the faradic by-products from ES. It is found that pH of the culture media was not significantly changed, whereas the average hydrogen peroxide concentration was increased by 3.6 and 5.4 µM after 1 and 2 hr of ES, respectively. The upregulation of Bmp2 and Spp1 messenger RNAs was observed after 3 days of stimulation, which is consistent among two cell types. It is also found that Spp1 expression of macrophages was partially enhanced by faradic by-products. Osteogenic differentiation of preosteoblasts was not observed during the early stage of ES as the level of Runx2 expression remains unchanged. However, cell proliferation was impaired by the excessive current density from the electrodes, and also faradic by-products in the case of macrophages. This study shows that macrophages could respond to ES and potentially contribute to the bone formation alongside preosteoblasts. The upregulation of Bmp2 and Spp1 expressions induced by ES could be one of the mechanisms behind the electrically stimulated osteogenesis.
Collapse
Affiliation(s)
| | - Sahba Mobini
- Instituto de Micro y Nanotecnología IMN-CNM, The Spanish National Research Council (CSIC), Madrid, Spain.,Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Universidad Autónoma de Madrid, Madrid, Spain
| | - Nigel J Cassidy
- Department of Civil Engineering, University of Birmingham, Birmingham, UK
| | - Sarah H Cartmell
- Department of Materials, The University of Manchester, Manchester, UK
| |
Collapse
|
7
|
Lin C, Shao Y, Zeng C, Zhao C, Fang H, Wang L, Pan J, Liu L, Qi W, Feng X, Qiu H, Zhang H, Chen Y, Wang H, Cai D, Xian CJ. Blocking PI3K/AKT signaling inhibits bone sclerosis in subchondral bone and attenuates post-traumatic osteoarthritis. J Cell Physiol 2018; 233:6135-6147. [PMID: 29323710 DOI: 10.1002/jcp.26460] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [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: 08/31/2017] [Accepted: 01/05/2018] [Indexed: 01/05/2023]
Abstract
PI3K/AKT signaling is essential in regulating pathophysiology of osteoarthritis (OA). However, its potential modulatory role in early OA progression has not been investigated yet. Here, a mouse destabilization OA model in the tibia was used to investigate roles of PI3K/AKT signaling in the early subchondral bone changes and OA pathological process. We revealed a significant increase in PI3K/AKT signaling activation which was associated with aberrant bone formation in tibial subchondral bone following destabilizing the medial meniscus (DMM), which was effectively prevented by treatment with PI3K/AKT signaling inhibitor LY294002. PI3K/AKT signaling inhibition attenuated articular cartilage degeneration. Serum and bone biochemical analyses revealed increased levels of MMP-13, which was found expressed mainly by osteoblastic cells in subchondral bone. However, this MMP-13 induction was attenuated by LY294002 treatment. Furthermore, PI3K/AKT signaling was found to enhance preosteoblast proliferation, differentiation, and expression of MMP-13 by activating NF-κB pathway. In conclusion, inhibition of PI3K/AKT/NF-κB axis was able to prevent aberrant bone formation and attenuate cartilage degeneration in OA mice.
Collapse
Affiliation(s)
- Chuangxin Lin
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Yan Shao
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Chun Zeng
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Chang Zhao
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Hang Fang
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Liping Wang
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Jianying Pan
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Liangliang Liu
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Weizhong Qi
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Xiaofeng Feng
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Hong Qiu
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Haiyang Zhang
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Yuhui Chen
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Hong Wang
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Daozhang Cai
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Academy of Orthopaedics of Guangdong Province, Guangzhou, Guangdong, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Cory J Xian
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| |
Collapse
|
8
|
Santos NF, Cicuéndez M, Holz T, Silva VS, Fernandes AJS, Vila M, Costa FM. Diamond-Graphite Nanoplatelet Surfaces as Conductive Substrates for the Electrical Stimulation of Cell Functions. ACS Appl Mater Interfaces 2017; 9:1331-1342. [PMID: 28001360 DOI: 10.1021/acsami.6b14407] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The nanocarbon allotropes constitute valid alternatives when designing control and actuation devices for electrically assisted tissue regeneration purposes, gathering among them important characteristics such as chemical inertness, biocompatibility, extreme mechanical properties, and, importantly, low and tailorable electrical resistivity. In this work, coatings of thin (100 nm) vertically aligned nanoplatelets composed of diamond (5 nm) and graphite were produced via a microwave plasma chemical vapor deposition (MPCVD) technique and used as substrates for electrical stimulation of MC3T3-E1 preosteoblasts. Increasing the amount of N2 up to 14.5 vol % during growth lowers the coatings' electrical resistivity by over 1 order of magnitude, triggers the nanoplatelet vertical growth, and leads to the higher crystalline quality of the nanographite phase. When preosteoblasts were cultured on these substrates and subjected to two consecutive daily cycles of 3 μA direct current stimulation, enhanced cell proliferation and metabolism were observed accompanied by high cell viability. Furthermore, in the absence of DC stimulation, alkaline phosphatase (ALP) activity is increased significantly, denoting an up-regulating effect of preosteoblastic maturation intrinsically exerted by the nanoplatelet substrates.
Collapse
Affiliation(s)
- N F Santos
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Cicuéndez
- TEMA-NRG, Mechanical Engineering Department and CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro , 3810-193 Aveiro, Portugal
| | - T Holz
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - V S Silva
- CESAM, Biology Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - A J S Fernandes
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Vila
- TEMA-NRG, Mechanical Engineering Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - F M Costa
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| |
Collapse
|
9
|
Yang S, Zhang K, Li F, Jiang J, Jia T, Yang SY. Biological responses of preosteoblasts to particulate and ion forms of Co-Cr alloy. J Biomed Mater Res A 2015; 103:3564-71. [PMID: 25966675 DOI: 10.1002/jbm.a.35501] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 03/23/2015] [Revised: 05/02/2015] [Accepted: 05/07/2015] [Indexed: 11/12/2022]
Abstract
This study compared the particulate and ion forms of a cobalt-chrome (Co-Cr) alloy on the differentiation/activation of preosteoblasts. Mouse preosteoblasts (MC3T3-E1) were cultured in an osteoblast-induction medium in the presence of particulate and ion forms of a Co-Cr alloy, followed by cell proliferation and cytotoxicity evaluations. The maturation and function of osteoblasts were assessed by alkaline phosphatase (ALP) assay and related gene expressions. Both particulate and ion forms of the metals significantly reduced the proliferation of MC3T3-E1 cells in a dose-dependent manner. Similarly, cells challenged with high concentrations of particles and ions exhibited a marked cytotoxic effect and diminished expression of ALP. Real-time (RT) polymerase chain reaction (PCR) data have suggested that cells with Co-Cr particles dramatically promoted over-expression of monocyte chemo-attractant protein-1 (MCP-1), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6), whereas Co(2+) ions treatment predominately up-regulated expressions of receptor activator of nuclear factor kappa-B ligand (RANKL), nuclear factor of activated T-cells cytoplasmic 1 (NFATc1), and down-regulated expression of osteoprotegerin (OPG) and Osterix (Osx). Overall, this study provides evidence that both Co-Cr alloy particles and metal ions interfered with the MC3T3-E1 cells for their growth, maturation, and functions. Further, Co-Cr particles exhibited stronger effects on inflammatory mediators, while metal ions showed more influence on inhibition of osteoblast differentiation and promotion of osteoclastogenesis.
Collapse
Affiliation(s)
- Shuye Yang
- Department of Orthopaedic Surgery, Jinan Central Hospital, Shandong University, Jinan, 250013, China.,Department of Biological Sciences, Wichita State University, Wichita, Kansas, 67214.,Department of Orthopaedics, Affiliated Hospital to Binzhou Medical College, Binzhou, China
| | - Kai Zhang
- Department of Orthopaedics, Affiliated Hospital to Binzhou Medical College, Binzhou, China
| | - Fangfang Li
- Department of Gynaecology and Obstetrics, Affiliated Hospital to Binzhou Medical College, Binzhou, China
| | - Jianhao Jiang
- Department of Orthopaedic Surgery, Jinan Central Hospital, Shandong University, Jinan, 250013, China
| | - Tanghong Jia
- Department of Orthopaedic Surgery, Jinan Central Hospital, Shandong University, Jinan, 250013, China
| | - Shang-You Yang
- Department of Orthopaedic Surgery, Jinan Central Hospital, Shandong University, Jinan, 250013, China.,Department of Biological Sciences, Wichita State University, Wichita, Kansas, 67214
| |
Collapse
|
10
|
Chung E, Rylander MN. Response of preosteoblasts to thermal stress conditioning and osteoinductive growth factors. Cell Stress Chaperones 2012; 17:203-14. [PMID: 22116637 PMCID: PMC3273562 DOI: 10.1007/s12192-011-0300-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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] [Received: 05/08/2011] [Revised: 10/04/2011] [Accepted: 10/05/2011] [Indexed: 11/28/2022] Open
Abstract
Conditioning protocols involving mechanical stress independently or with chemical cues such as growth factors (GFs) possess significant potential to enhance bone regeneration. However, utilization of thermal stress conditioning alone or with GFs for bone therapy has been under-investigated. In this study, a preosteoblast cell line (MC3T3-E1) was exposed to treatment with water bath heating (44°C, 4 and 8 min) and osteoinductive GFs (bone morphogenetic protein-2 and transforming growth factor-β1) individually or in combination to investigate whether these stimuli could promote induction of bone-related markers, an angiogenic factor, and heat shock proteins (HSPs). Cells remained viable when heating durations were less than 20 min at 40ºC, 16 min at 42ºC, and 10 min at 44ºC. Increasing heating duration at 44°C, promoted gene expression of HSPs, osteocalcin (OCN), and osteopontin (OPN) at 8 h post-heating (PH). Heating in combination with GFs caused the greatest gene induction of osteoprotegerin (OPG; 6.9- and 1.6-fold induction compared to sham-treated and GF only treated groups, respectively) and vascular endothelial growth factor (VEGF; 16.0- and 1.6-fold compared to sham and GF-only treated groups, respectively) at 8 h PH. Both heating and GFs independently suppressed the matrix metalloproteinase-9 (MMP-9) gene. GF treatment caused a more significant decrease in MMP-9 protein secretion to non-detectable levels compared to heating alone at 72 h PH. Secretion of OCN, OPN, and OPG increased with the addition of GFs but diminished with heating as measured by ELISA at 72 h PH. These results suggest that conditioning protocols utilizing heating and GFs individually or in combination can induce HSPs, bone-related proteins, and VEGF while also causing downregulation of osteoclastic activity, potentially providing a promising bone therapeutic strategy.
Collapse
Affiliation(s)
- Eunna Chung
- School of Biomedical Engineering and Sciences, Virginia Tech–Wake Forest University, Virginia Tech, ICTAS Bldg., Stanger Street (MC 0298), Blacksburg, VA 24061 USA
| | - Marissa Nichole Rylander
- School of Biomedical Engineering and Sciences, Virginia Tech–Wake Forest University, Virginia Tech, ICTAS Bldg., Stanger Street (MC 0298), Blacksburg, VA 24061 USA
- Department of Mechanical Engineering, Virginia Tech, Virginia Tech, ICTAS Bldg., Stanger Street (MC 0298), Blacksburg, VA 24061 USA
| |
Collapse
|
11
|
Choi SW, Zhang Y, Thomopoulos S, Xia Y. In vitro mineralization by preosteoblasts in poly(DL-lactide-co-glycolide) inverse opal scaffolds reinforced with hydroxyapatite nanoparticles. Langmuir 2010; 26:12126-31. [PMID: 20450216 PMCID: PMC2912416 DOI: 10.1021/la101519b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Inverse opal scaffolds made of poly(DL-lactide-co-glycolide) (PLGA) and hydroxyapatite (HAp) were fabricated using cubic-closed-packed (ccp) lattices of uniform gelatin microspheres as templates and evaluated for bone tissue engineering. The scaffolds exhibited a uniform pore size (213 +/- 4.4 microm), a porosity of approximately 75%, and an excellent connectivity in three dimensions. Three different formulations were examined: pure PLGA, HAp-impregnated PLGA (PLGA/HAp), and apatite (Ap)-coated PLGA/HAp. After seeding with preosteoblasts (MC3T3-E1), the samples were cultured for different periods of time and then characterized by X-ray microcomputed tomography (micro-CT) and scanning electron microscopy to evaluate osteoinductivity in terms of the amount and spatial distribution of mineral secreted from the differentiated preosteoblasts. Our results indicate that preosteoblasts cultured in the Ap-coated PLGA/HAp scaffolds secreted the largest amount of mineral, which was also homogeneously distributed throughout the scaffolds. In contrast, the cells in the pure PLGA scaffolds secreted very little mineral, which was mainly deposited around the perimeter of the scaffolds. These results suggest that the uniform pore structure and favorable surface properties could facilitate the uniform secretion of extracellular matrix from cells throughout the scaffold. The Ap-coated PLGA/HAp scaffold with uniform pore structure could be a promising material for bone tissue engineering.
Collapse
Affiliation(s)
- Sung-Wook Choi
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63130, USA
| | - Yu Zhang
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63130, USA
| | - Stavros Thomopoulos
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri 63130, USA
| | - Younan Xia
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63130, USA
- Corresponding author.
| |
Collapse
|