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Díez-Tercero L, Bosch-Rué È, Bosch BM, Rojas-Márquez R, Caballé-Serrano J, Delgado LM, Pérez RA. Engineering a microparticle-loaded rough membrane for guided bone regeneration modulating osteoblast response without inducing inflammation. Colloids Surf B Biointerfaces 2024; 241:113994. [PMID: 38850744 DOI: 10.1016/j.colsurfb.2024.113994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/14/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024]
Abstract
Guided bone regeneration (GBR) is a widely used procedure that prevents the fast in-growth of soft tissues into bone defect. Among the different types of membranes, the use of collagen membranes is the gold standard. However, these membranes are implanted in tissue location where a severe acute inflammation will occur and can be negatively affected. The aim of this study was to develop a collagen-based membrane for GBR that incorporated alginate-hydroxyapatite microparticles. Membranes were manufactured using collagen type I and gelatin and alginate-hydroxyapatite microparticles. Membranes were assessed in terms of topography by scanning electron microscopy and confocal microscopy; stability by swelling after an overnight incubation in saline and enzymatic degradation against collagenase and mechanical properties by tensile tests. Furthermore, the biological response was assessed with SaOs-2 cells and THP-1 macrophages to determine alkaline phosphatase activity and inflammatory cytokine release. Our results showed that the incorporation of different percentages of these microparticles could induce changes in the surface topography. When the biological response was analyzed, either membranes were not cytotoxic to THP-1 macrophages or to SaOs-2 cells and they did not induce the release of pro-inflammatory cytokines. However, the different surface topographies did not induce changes in the macrophage morphology and the release of pro- and anti-inflammatory cytokines, suggesting that the effect of surface roughness on macrophage behavior could be dependent on other factors such as substrate stiffness and composition. Collagen-gelatin membranes with embedded alginate-hydroxyapatite microparticles increased ALP activity, suggesting a positive effect of them on bone regeneration, remaining unaffected the release of pro- and anti-inflammatory cytokines.
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Affiliation(s)
- Leire Díez-Tercero
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Basic Science Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - Èlia Bosch-Rué
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Basic Science Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - Begoña M Bosch
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Basic Science Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - Raquel Rojas-Márquez
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Basic Science Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - Jordi Caballé-Serrano
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain; Department of Periodontology, School of Dental Medicine - University of Bern, Bern, Switzerland
| | - Luis M Delgado
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Basic Science Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain.
| | - Román A Pérez
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Basic Science Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain.
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Effects of Modulation of the Hedgehog and Notch Signaling Pathways on Osteoblast Differentiation Induced by Titanium with Nanotopography. J Funct Biomater 2023; 14:jfb14020079. [PMID: 36826878 PMCID: PMC9968096 DOI: 10.3390/jfb14020079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/14/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND The events of bone formation and osteoblast/titanium (Ti) interactions may be affected by Hedgehog and Notch signalling pathways. Herein, we investigated the effects of modulation of these signalling pathways on osteoblast differentiation caused by the nanostructured Ti (Ti-Nano) generated by H2SO4/H2O2. METHODS Osteoblasts from newborn rat calvariae were cultured on Ti-Control and Ti-Nano in the presence of the Hedgehog agonist purmorphamine or antagonist cyclopamine and of the Notch antagonist N-(3,5-Difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT) or agonist bexarotene. Osteoblast differentiation was evaluated by alkaline phosphatase activity and mineralization, and the expression of Hedgehog and Notch receptors was also evaluated. RESULTS In general, purmorphamine and DAPT increased while cyclopamine and bexarotene decreased osteoblast differentiation and regulated the receptor expression on both Ti surfaces, with more prominent effects on Ti-Nano. The purmorphamine and DAPT combination exhibited synergistic effects on osteoblast differentiation that was more intense on Ti-Nano. CONCLUSION Our results indicated that the Hedgehog and Notch signalling pathways drive osteoblast/Ti interactions more intensely on nanotopography. We also demonstrated that combining Hedgehog activation with Notch inhibition exhibits synergistic effects on osteoblast differentiation, especially on Ti-Nano. The uncovering of these cellular mechanisms contributes to create strategies to control the process of osseointegration based on the development of nanostructured surfaces.
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Liu Z, Xu Z, Wang X, Zhang Y, Wu Y, Jiang D, Jia R. Construction and osteogenic effects of 3D-printed porous titanium alloy loaded with VEGF/BMP-2 shell-core microspheres in a sustained-release system. Front Bioeng Biotechnol 2022; 10:1028278. [PMID: 36338136 PMCID: PMC9634119 DOI: 10.3389/fbioe.2022.1028278] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/10/2022] [Indexed: 11/22/2022] Open
Abstract
The repair and reconstruction of bone defects remain a challenge in orthopedics. The present study offers a solution to this problem by developing a vascular endothelial growth factor (VEGF)/bone morphogenetic protein 2 (BMP-2) shell-core microspheres loaded on 3D-printed porous titanium alloy via gelatin coating to prepare a titanium-alloy microsphere scaffold release system. The composite scaffold was characterized via scanning electron microscope (SEM) and energy disperse spectroscopy (EDS), and the effect of the composite scaffold on the adhesion, proliferation, and differentiation of osteoblasts were determined in vitro. Furthermore, a rabbit femoral defect model was established to verify the effect of the composite scaffold on osteogenesis and bone formation in vivo. The results demonstrated that the composite scaffold could release VEGF and BMP-2 sequentially. Meanwhile, the composite scaffold significantly promoted osteoblast adhesion, proliferation, and differentiation (p < 0.05) compared to pure titanium alloy scaffolds in vitro. Furthermore, the composite scaffold can exhibit significant osteogenic differentiation (p < 0.05) than gelatin-coated titanium alloy scaffolds. The in vivo X-rays demonstrated that the implanted scaffolds were in a good position, without inflammation and infection. Micro-CT and quantitative results of new bone growth illustrated that the amount of new bone in the composite scaffold is significantly higher than that of the gelatin-coated and pure titanium alloy scaffolds (p < 0.05). Similarly, the fluorescence labeling and V-G staining of hard tissue sections indicated that the bone integration capacity of the composite scaffold was significantly higher than the other two groups (p < 0.05). This research suggests that VEGF/BMP-2 shell-core microspheres loaded on 3D-printed titanium alloy porous scaffold through gelatin hydrogel coating achieved the sequential release of VEGF and BMP-2. Most importantly, the in vitro and in vivo study findings have proven that the system could effectively promote osteogenic differentiation and osseointegration.
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Affiliation(s)
- Zheng Liu
- Department of Orthopedics, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Zhenchao Xu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha, Hunan, China
- *Correspondence: Zhenchao Xu, ; Yunqi Wu,
| | - Xiyang Wang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yilu Zhang
- Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yunqi Wu
- Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha, Hunan, China
- *Correspondence: Zhenchao Xu, ; Yunqi Wu,
| | - Dingyu Jiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Runze Jia
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Zhou Y, Wang G, Wang T, Wang J, Wen X, Sun H, Yu L, Liu X, Zhang J, Zhou Q, Sun Y. Multidynamic Osteogenic Differentiation by Effective Polydopamine Micro-Arc Oxide Manipulations. Int J Nanomedicine 2022; 17:4773-4790. [PMID: 36246934 PMCID: PMC9553511 DOI: 10.2147/ijn.s378387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/06/2022] [Indexed: 11/05/2022] Open
Abstract
Introduction The nanostructural modification of the oral implant surface can effectively mimic the morphology of natural bone tissue, allowing osteoblasts to achieve both proliferation and differentiation capabilities at the bone interface of the dental implant. To improve the osteoinductive activity on the surface of titanium implants for rapid osseointegration, we prepared a novel composite coating (MAO-PDA-NC) by micro-arc oxidation technique and immersion method and evaluated the proliferation, adhesion, and osteogenic differentiation of osteoblasts on this coating. Methods The coatings were prepared by micro-arc oxidation (MAO) technique and immersion method, and characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM) for different coatings; the loading of PDA was examined using Fourier transform infrared spectroscopy (FTIR); the ion release capacity of the coatings was determined by inductively coupled plasma emission spectrometry (ICP-OES); the interfacial bonding of the coatings was examined using nanoscratch experiment strength. The cytotoxicity of the coating was examined by live/dead staining kit; cell proliferation viability was examined by CCK-8 kit; adhesion and osteogenic effect of the coating were examined by immunofluorescence staining and RT-PCR; osteogenic differentiation was examined by alkaline phosphatase staining. Results The surface morphology of titanium implants was modified by micro-arc oxidation technology, and a new MAO-PDA-NC composite coating was successfully prepared. The results showed that the MAO-PDA-NC coating not only optimized the physical and chemical properties of the titanium implant surface but also significantly stimulated the biological properties of osteoblast adhesion, proliferation, and osteogenic differentiation on the coating surface. Conclusion These results show that MAO-PDA-NC composite coating can significantly improve the surface properties of titanium implants and achieve a stable bond between implant and bone tissue, thus accelerating early osseointegration.
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Affiliation(s)
- Yuqi Zhou
- School of Stomatology, Weifang Medical University, Weifang, People’s Republic of China
| | - Guifang Wang
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Tianqi Wang
- School of Stomatology, Weifang Medical University, Weifang, People’s Republic of China
| | - Jiajia Wang
- Department of Oral Surgery, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Xutao Wen
- Department of Oral Surgery, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Haishui Sun
- School of Stomatology, Weifang Medical University, Weifang, People’s Republic of China
| | - Lei Yu
- School of Stomatology, Weifang Medical University, Weifang, People’s Republic of China
| | - Xiaoying Liu
- School of Bioscience and Technology, Weifang Medical University, Weifang, People’s Republic of China
| | - Juanjuan Zhang
- School of Stomatology, Weifang Medical University, Weifang, People’s Republic of China
| | - Qin Zhou
- Department of Oral Surgery, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China,Correspondence: Qin Zhou, Department of Oral Surgery, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011,People’s Republic of China, Tel +86 15900827810, Email
| | - Yan Sun
- School of Stomatology, Weifang Medical University, Weifang, People’s Republic of China,Yan Sun, School of Stomatology, Weifang Medical University, Weifang, Shandong Province, 261053, People’s Republic of China, Tel +86 13356797219, Email
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Zhou J, Nie Y, Jin C, Zhang JXJ. Engineering Biomimetic Extracellular Matrix with Silica Nanofibers: From 1D Material to 3D Network. ACS Biomater Sci Eng 2022; 8:2258-2280. [PMID: 35377596 DOI: 10.1021/acsbiomaterials.1c01525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biomaterials at nanoscale is a fast-expanding research field with which extensive studies have been conducted on understanding the interactions between cells and their surrounding microenvironments as well as intracellular communications. Among many kinds of nanoscale biomaterials, mesoporous fibrous structures are especially attractive as a promising approach to mimic the natural extracellular matrix (ECM) for cell and tissue research. Silica is a well-studied biocompatible, natural inorganic material that can be synthesized as morpho-genetically active scaffolds by various methods. This review compares silica nanofibers (SNFs) to other ECM materials such as hydrogel, polymers, and decellularized natural ECM, summarizes fabrication techniques for SNFs, and discusses different strategies of constructing ECM using SNFs. In addition, the latest progress on SNFs synthesis and biomimetic ECM substrates fabrication is summarized and highlighted. Lastly, we look at the wide use of SNF-based ECM scaffolds in biological applications, including stem cell regulation, tissue engineering, drug release, and environmental applications.
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Affiliation(s)
- Junhu Zhou
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Yuan Nie
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Congran Jin
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - John X J Zhang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
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Mapping Bone Marrow Cell Response from Senile Female Rats on Ca-P-Doped Titanium Coating. MATERIALS 2022; 15:ma15031094. [PMID: 35161039 PMCID: PMC8839629 DOI: 10.3390/ma15031094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 12/04/2022]
Abstract
Chemical and topographical surface modifications on dental implants aim to increase the bone surface contact area of the implant and improve osseointegration. This study analyzed the cellular response of undifferentiated mesenchymal stem cells (MSC), derived from senile rats’ femoral bone marrow, when cultured on a bioactive coating (by plasma electrolytic oxidation, PEO, with Ca2+ and P5+ ions), a sandblasting followed by acid-etching (SLA) surface, and a machined surface (MSU). A total of 102 Ti-6Al-4V discs were divided into three groups (n = 34). The surface chemistry was analyzed by energy dispersive spectroscopy (EDS). Cell viability assay, gene expression of osteoblastic markers, and mineralized matrix formation were investigated. The cell growth and viability results were higher for PEO vs. MSU surface (p = 0.001). An increase in cell proliferation from 3 to 7 days (p < 0.05) and from 7 to 10 days (p < 0.05) was noted for PEO and SLA surfaces. Gene expression for OSX, ALP, BSP, and OPN showed a statistical significance (p = 0.001) among groups. In addition, the PEO surface showed a higher mineralized matrix bone formation (p = 0.003). In conclusion, MSC from senile female rats cultured on SLA and PEO surfaces showed similar cellular responses and should be considered for future clinical investigations.
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Liu CF, Chang KC, Sun YS, Nguyen DT, Huang HH. Combining Sandblasting, Alkaline Etching, and Collagen Immobilization to Promote Cell Growth on Biomedical Titanium Implants. Polymers (Basel) 2021; 13:polym13152550. [PMID: 34372152 PMCID: PMC8347351 DOI: 10.3390/polym13152550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022] Open
Abstract
Our objective in this study was to promote the growth of bone cells on biomedical titanium (Ti) implant surfaces via surface modification involving sandblasting, alkaline etching, and type I collagen immobilization using the natural cross-linker genipin. The resulting surface was characterized in terms topography, roughness, wettability, and functional groups, respectively using field emission scanning electron microscopy, 3D profilometry, and attenuated total reflection-Fourier transform infrared spectroscopy. We then evaluated the adhesion, proliferation, initial differentiation, and mineralization of human bone marrow mesenchymal stem cells (hMSCs). Results show that sandblasting treatment greatly enhanced surface roughness to promote cell adhesion and proliferation and that the immobilization of type I collagen using genipin enhanced initial cell differentiation as well as mineralization in the extracellular matrix of hMSCs. Interestingly, the nano/submicro-scale pore network and/or hydrophilic features on sandblasted rough Ti surfaces were insufficient to promote cell growth. However, the combination of all proposed surface treatments produced ideal surface characteristics suited to Ti implant applications.
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Affiliation(s)
- Chia-Fei Liu
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (C.-F.L.); (D.T.N.)
| | - Kai-Chun Chang
- Institute of Oral Biology, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
| | - Ying-Sui Sun
- School of Dental Technology, Taipei Medical University, Taipei 110, Taiwan;
| | - Diem Thuy Nguyen
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (C.-F.L.); (D.T.N.)
| | - Her-Hsiung Huang
- Department of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (C.-F.L.); (D.T.N.)
- Institute of Oral Biology, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
- Department of Stomatology, Taipei Veterans General Hospital, Taipei 112, Taiwan
- Department of Education and Research, Taipei City Hospital, Taipei 103, Taiwan
- Correspondence: ; Tel.: +886-2-28267068
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Li L, Zhou J, Xu Y, Huang Z, Zhang N, Qiu X, Wang L. C-C chemokine receptor type 6 modulates the biological function of osteoblastogenesis by altering the expression levels of Osterix and OPG/RANKL. Biosci Trends 2021; 15:240-248. [PMID: 34248133 DOI: 10.5582/bst.2021.01199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Circulating inflammatory factors affect osteoblast and osteoclast formation and activity in osteoporosis. Estrogen affects the migration of Th17 cells via the C-C chemokine receptor type 6 (CCR6) and C-C chemokine ligand 20 (CCL20) signaling pathways to modulate bone metabolism; however, it is unclear whether and how CCR6 modulates bone homeostasis. In the present study, CCR6 knockout (CCR6-/-) mice were selected to investigate the effects of CCR6 in the regulation of homeostasis of osteoblasts and osteoclasts. Primary osteoblasts were isolated from the calvarium of newborn CCR6-/- or wild-type mice, followed by osteoblastic differentiation culture in vitro. CCR6 deletion reduced osteoblast activity in terms of alkaline phosphatase (ALP) activity and inhibited osteoblast mineralization according to the results of Alizarin Red S staining, whereas it did not affect the proliferation of osteoblasts. CCR6 deletion inhibited Osterix mRNA expression in osteoblasts during the late stage of mineralization in vitro, while it did not affect mRNA expression levels of runt-related transcription factor 2 (Runx2) and Collagen-1. The ratio of osteoprotegerin (OPG) /receptor activator of nuclear factor κ-Β ligand (RANKL) mRNA level in osteoblasts was decreased by CCR6 deficiency in the culture treated with 1,25(OH)2D3/PGE2, while there was no effect observed in the normal culture environment. The results provide novel insights, such as that CCR6 deletion suppresses osteoblast differentiation by downregulating the expression levels of the transcription factor Osterix, and indirectly promotes osteoclast production by increasing transcription of RANKL. This may be one of the mechanisms via which CCR6 deletion regulates bone metabolism.
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Affiliation(s)
- Lisha Li
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Zhou
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Yingping Xu
- Reproductive Medicine Centre, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Zengshu Huang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Na Zhang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Xuemin Qiu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Ling Wang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
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Effects of Gamma Radiation-Induced Crosslinking of Collagen Type I Coated Dental Titanium Implants on Osseointegration and Bone Regeneration. MATERIALS 2021; 14:ma14123268. [PMID: 34199187 PMCID: PMC8231814 DOI: 10.3390/ma14123268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 01/05/2023]
Abstract
This study aimed to compare two methods of crosslinking collagen type I on implanted titanium surfaces, that is, using glutaraldehyde (GA) or gamma-rays (GRs), in a beagle dog model. For in vivo experiments, implants were allocated to three groups and applied to mandibular bone defects in beagle dogs; Group SLA; non-treated Sandblasted, large grit, acid-etched (SLA) implants, Group GA; SLA implants coated with GA crosslinked collagen type I, Group GR; SLA surface implants coated with collagen type I and crosslinked using 25 kGy of 60Co gamma radiation. New bone μCT volumes were obtained, and histologic and histometric analyses were performed in regions of interest. The GR group had significantly better new bone areas (NBAs) and bone to implant contact (BIC) results than the SLA group (p < 0.05), but the GA and GR groups were similar in this respect. New bone volumes and inter-thread bone densities (ITBD) were non-significantly different in the three groups (p > 0.05). Within the limits of this study, gamma-ray collagen crosslinking on titanium implants can be considered a substitute for glutaraldehyde crosslinking.
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Joyce K, Fabra GT, Bozkurt Y, Pandit A. Bioactive potential of natural biomaterials: identification, retention and assessment of biological properties. Signal Transduct Target Ther 2021; 6:122. [PMID: 33737507 PMCID: PMC7973744 DOI: 10.1038/s41392-021-00512-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/29/2020] [Accepted: 01/19/2021] [Indexed: 02/07/2023] Open
Abstract
Biomaterials have had an increasingly important role in recent decades, in biomedical device design and the development of tissue engineering solutions for cell delivery, drug delivery, device integration, tissue replacement, and more. There is an increasing trend in tissue engineering to use natural substrates, such as macromolecules native to plants and animals to improve the biocompatibility and biodegradability of delivered materials. At the same time, these materials have favourable mechanical properties and often considered to be biologically inert. More importantly, these macromolecules possess innate functions and properties due to their unique chemical composition and structure, which increase their bioactivity and therapeutic potential in a wide range of applications. While much focus has been on integrating these materials into these devices via a spectrum of cross-linking mechanisms, little attention is drawn to residual bioactivity that is often hampered during isolation, purification, and production processes. Herein, we discuss methods of initial material characterisation to determine innate bioactivity, means of material processing including cross-linking, decellularisation, and purification techniques and finally, a biological assessment of retained bioactivity of a final product. This review aims to address considerations for biomaterials design from natural polymers, through the optimisation and preservation of bioactive components that maximise the inherent bioactive potency of the substrate to promote tissue regeneration.
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Affiliation(s)
- Kieran Joyce
- School of Medicine, National University of Ireland, Galway, Ireland
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
| | - Georgina Targa Fabra
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
| | - Yagmur Bozkurt
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
| | - Abhay Pandit
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Galway, Ireland.
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11
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Feletto L, Bengazi F, Urbizo Velez JJ, Ferri M, Favero R, Botticelli D. Bone healing at collagenated bicortically installed implants: an experimental study in rabbits. Oral Maxillofac Surg 2020; 24:501-507. [PMID: 32653997 DOI: 10.1007/s10006-020-00882-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE To study the healing at collagenated bicortically installed implants. METHODS Twenty albino New Zealand rabbits were used for implant installation. Two implants with a double acid etched surface, coated with a collagen type I or left uncoated, were installed bicortically in the metaphysis and in the diaphysis of each tibia. Ten rabbits were euthanized after 2 weeks and ten after 6 weeks after installation. Ground sections were prepared for histological analyses that were performed both in the cortical layers and in the marrow regions. RESULTS After 2 weeks of healing, highest amounts of new bone were found at the collagenated implants (43.2 ± 6.0%) compared to the standard implants (33.9 ± 6.1%; p = 0.022). After 6 weeks of healing, similar percentages of new bone were observed, being 51.8 ± 7.3% and 50.9 ± 9.6% (p = 0.678) for the standard and collagenated surfaces, respectively. CONCLUSIONS A coated surface with collagen type I promoted bone apposition in the earliest periods of healing. However, the effect vanished over time so that similar results were obtained after 6 weeks of healing.
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Affiliation(s)
- Luigi Feletto
- ARDEC Academy, viale Giovanni Pascoli 67, Rimini, Italy
| | - Franco Bengazi
- Faculty of Dentistry, University of Medical Science, La Habana, Cuba
| | | | - Mauro Ferri
- ARDEC Foundation, Cartagena de Indias, Colombia
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12
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Wu C, Shao X, Lin X, Gao W, Fang Y, Wang J. Surface modification of titanium with collagen/hyaluronic acid and bone morphogenetic protein 2/7 heterodimer promotes osteoblastic differentiation. Dent Mater J 2020; 39:1072-1079. [PMID: 33028783 DOI: 10.4012/dmj.2019-249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the effects of a collagen/hyaluronic acid coating without or with incorporated heterodimeric bone morphogenetic protein 2/7 (BMP2/7) on in-vitro osteoblastic differentiation on titanium discs. The multilayer collagen/hyaluronic acid coatings without or without incorporated BMP2/7 were deposited on titanium discs via a layer-by-layer technique. The effects of the coatings were evaluated by assessing the alkaline phosphatase (ALP) activity (an early osteoblastic differentiation marker) and the osteocalcin expression (a late osteoblastic differentiation marker). The expression levels of the osteoblastic genes, such as alkaline phosphatase 2 (AKP2) and osteocalcin (OC) were detected using real-time RT-PCR. ALP activity and OC expression were significantly increased when cells were cultured with collagen/hyaluronic acid+BMP2/7 heterodimer (p<0.05). The same result was found in cells with the expression of a BMP2/7 fusion gene, OC and AKP2. These results indicated that collagen/hyaluronic acid+BMP2/7 heterodimer-coated discs might have the potential to greatly enhance osseointegration than a either BMP2 or BMP7 solution or a mixture of BMP2 and BMP7 BMP2/7.
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Affiliation(s)
- Chengzhong Wu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Xia Shao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Xianglin Lin
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Weijin Gao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Yiming Fang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Jingxiao Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
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13
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Yu L, Silva Santisteban TM, Liu Q, Hu C, Bi J, Wei M. Effect of three-dimensional porosity gradients of biomimetic coatings on their bonding strength and cell behavior. J Biomed Mater Res A 2020; 109:615-626. [PMID: 32608169 DOI: 10.1002/jbm.a.37046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 03/19/2020] [Accepted: 06/06/2020] [Indexed: 02/06/2023]
Abstract
Surface modification techniques are often used to enhance the properties of Ti-based materials as hard-tissue replacements. While the microstructure of the coating and the quality of the interface between the substrate and coating are essential to evaluate the reliability and applicability of the surface modification. In this study, both a hydroxyapatite (HA) coating and a collagen-hydroxyapatite (Col-HA) composite coating were deposited onto a Ti-6Al-4V substrate using a biomimetic coating process. Importantly, a gradient cross-sectional structure with a porous coating toward the surface, while a dense layer adjacent to the interface between the coating and substrate was observed in three-dimensional (3D) from both the HA and Col-HA coatings via a dual-beam focused ion beam-scanning electron microscope (FIB-SEM). Moreover, the pore distributions within the entire coatings were reconstructed in 3D using Avizo, and the pores size distributions along the coating depth were calculated using RStudio. By evaluating the mechanical property and biocompatibility of these materials and closely observing the cross-sectional cell-coating-substrate interfaces using FIB-SEM, it was revealed that the porous surface created by both coatings well supports osteoblast cell adhesion while the dense inner layer facilitates a good bonding between the coating and the substrate. Although the mechanical property of the coating decreased with the addition of collagen, it is still strong enough for implant handling and the biocompatibility was promoted.
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Affiliation(s)
- Le Yu
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA.,Department of Chemical and Biomolecular Engineering, Ohio University, Athens, Ohio, USA
| | | | - Qinqing Liu
- Department of Computer Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - Changmin Hu
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut, USA
| | - Jinbo Bi
- Department of Computer Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - Mei Wei
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut, USA.,Institute of Materials Science, University of Connecticut, Storrs, Connecticut, USA.,Department of Mechanical Engineering, Ohio University, Athens, Ohio, USA
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14
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Huang S, Ulloa A, Nauman E, Stanciu L. Collagen Coating Effects on Fe-Mn Bioresorbable Alloys. J Orthop Res 2020; 38:523-535. [PMID: 31608487 DOI: 10.1002/jor.24492] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/20/2019] [Indexed: 02/04/2023]
Abstract
Bioresorbable iron-manganese alloys (Fe-30%Mn) are considered as one of the next-generation resorbable materials for orthopedic applications. Previous in vitro study showed that Fe30Mn scaffolds with 10% porosity displayed strong mechanical properties and adequate degradation rate without severe cytotoxicity effect. However, the cellular compatibility of these alloys in terms of cell-to-cell and alloy-to-cell interactions is not ideal. Collagen is the most abundant protein in human bone, providing structural support beneficial to bone healing. We hypothesized that coating collagen on Fe30Mn can improve osteointegration or activities promoting cell adhesion, migration, and proliferation, as the alloy degrades. After preparing collagen coating on Fe-30Mn via spin coating, we conducted a corrosion test and a direct cytotoxicity test on four Fe30Mn groups: non-porous and 10% porosity, with and without collagen coating. Furthermore, we evaluated and compared the morphologies of cells over a period of 7 days. Results showed that there was no significant difference between the collagen-coated and non-coated groups in corrosion rates, yet a significant decrease from the porous non-coated group to the porous collagen-coated group in cytotoxicity level was found. Cell morphology on the porous non-coated group displayed round shape, whereas that on the porous collagen-coated group displayed flattened spreading. The study showed that the collagen coating significantly increased the initial cell viability and adhesion for both the porous and non-porous groups without impeding their degradation rates. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:523-535, 2020.
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Affiliation(s)
- Sabrina Huang
- School of Materials Science and Engineering, Purdue University, Neil Armstrong Hall of Engineering, 701 West Stadium Avenue, West Lafayette, Indiana, 47907-2045
| | - Ana Ulloa
- School of Materials Science and Engineering, Purdue University, Neil Armstrong Hall of Engineering, 701 West Stadium Avenue, West Lafayette, Indiana, 47907-2045
| | - Eric Nauman
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana.,School of Mechanical Engineering, Purdue University, West Lafayette, Indiana.,Department of Basic Medical Sciences, Purdue University, West Lafayette, Indiana
| | - Lia Stanciu
- School of Materials Science and Engineering, Purdue University, Neil Armstrong Hall of Engineering, 701 West Stadium Avenue, West Lafayette, Indiana, 47907-2045
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15
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Stepanovska J, Matejka R, Rosina J, Bacakova L, Kolarova H. Treatments for enhancing the biocompatibility of titanium implants. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2020; 164:23-33. [PMID: 31907491 DOI: 10.5507/bp.2019.062] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 12/17/2019] [Indexed: 12/31/2022] Open
Abstract
Titanium surface treatment is a crucial process for achieving sufficient osseointegration of an implant into the bone. If the implant does not heal sufficiently, serious complications may occur, e.g. infection, inflammation, aseptic loosening of the implant, or the stress-shielding effect, as a result of which the implant may need to be reoperated. After a titanium graft has been implanted, several interactions are crucial in order to create a strong bone-implant connection. It is essential that cells adhere to the surface of the implant. Surface roughness has a significant influence on cell adhesion, and also on improving and accelerating osseointegration. Other highly important factors are biocompatibility and resistance to bacterial contamination. Bio-inertness of titanium is ensured by the protective film of titanium oxides that forms spontaneously on its surface. This film prevents the penetration of metal compounds, and it is well-adhesive for calcium and phosphate ions, which are necessary for the formation of the mineralized bone structure. Since the presence of the film alone is not sufficient for the biocompatibility of titanium, a suitable surface finish is required to create a firm bone-implant connection. In this review, we explain and compare the most widely-used methods for modulating the surface roughness of titanium implants in order to enhance cell adhesion on the surface of the implant, e.g. plasma spraying, sandblasting, acid etching, laser treatment, sol-gel etc., The methods are divided into three overlapping groups, according to the type of modification.
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Affiliation(s)
- Jana Stepanovska
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic.,Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Roman Matejka
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic.,Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Jozef Rosina
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Hana Kolarova
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
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16
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Yılmaz E, Çakıroğlu B, Gökçe A, Findik F, Gulsoy HO, Gulsoy N, Mutlu Ö, Özacar M. Novel hydroxyapatite/graphene oxide/collagen bioactive composite coating on Ti16Nb alloys by electrodeposition. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:292-305. [PMID: 31029323 DOI: 10.1016/j.msec.2019.03.078] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/13/2019] [Accepted: 03/22/2019] [Indexed: 01/21/2023]
Abstract
A novel implant coating material containing graphene oxide (GO) and collagen (COL), and hydroxyapatite (HA) was fabricated with the aid of tannic acid by electrodeposition. The surface of Ti16Nb alloy was subjected to anodic oxidation, and then HA-GO coating was applied to Ti16Nb surface by cathodic method. Then, COL was deposited on the surface of the HA-GO coating by the biomimetic method. HA, HA-GO, HA-GO-COL coatings on the surface of the Ti16Nb alloy have increased the corrosion resistance by the formation of a barrier layer on the surface. For HA-GO-COL coating, the highest corrosion resistance is obtained due to the compactness and homogeneity of the coating structure. The contact angle of the bare Ti16Nb is approximately 65°, while the contact angle of the coated samples is close to 0°. Herein, the increased surface wettability is important for cell adhesion. The surface roughness of the uncoated Ti16Nb alloy was between 1 and 3 μm, while the surface roughness of the coated surfaces was measured between 20 and 110 μm. The contact between the bone and the implant has been improved. Graphene oxide-containing coatings have improved the antibacterial properties compared to the GO-free coating using S. aureus. The hardness and elastic modulus of the coatings were measured by the nanoindentation test, and the addition of GO and collagen to the HA coating resulted in an increase in strength. The addition of GO to the HA coating reduced the viability of 3 T3 fibroblast cells, whereas the addition of collagen to HA-GO coat increased the cell adhesion and viability.
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Affiliation(s)
- Eren Yılmaz
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application & Research Center (BIMAS-RC), 54187, Sakarya, Turkey
| | - Bekir Çakıroğlu
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application & Research Center (BIMAS-RC), 54187, Sakarya, Turkey
| | - Azim Gökçe
- Sakarya Applied Sciences University, Faculty of Technology, Metallurgical and Materials Engineering Department, 54187, Sakarya, Turkey
| | - Fehim Findik
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application & Research Center (BIMAS-RC), 54187, Sakarya, Turkey; Sakarya Applied Sciences University, Faculty of Technology, Metallurgical and Materials Engineering Department, 54187, Sakarya, Turkey.
| | - H Ozkan Gulsoy
- Marmara University, Faculty of Technology, Metallurgical and Materials Engineering Department, Goztepe, 34722 Istanbul, Turkey
| | - Nagihan Gulsoy
- Marmara University, Faculty of Art and Sciences, Department of Biology, 34722, Goztepe, Istanbul, Turkey
| | - Özal Mutlu
- Marmara University, Faculty of Art and Sciences, Department of Biology, 34722, Goztepe, Istanbul, Turkey
| | - Mahmut Özacar
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application & Research Center (BIMAS-RC), 54187, Sakarya, Turkey; Sakarya University, Science & Arts Faculty, Department of Chemistry, 54187, Sakarya, Turkey
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17
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Hsu CM, Sun YS, Huang HH. Enhanced Cell Response to Zirconia Surface Immobilized with Type I Collagen. J Dent Res 2019; 98:556-563. [PMID: 30786812 DOI: 10.1177/0022034519828702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Zirconia (ZrO2) dental implants provide good biocompatibility, have good corrosion resistance, and have a color that is similar to that of natural teeth. Unfortunately, ZrO2 is a bioinert material and therefore achieves osseointegration difficultly. In this study, we sought to enhance osseointegration by producing rough ZrO2 surfaces that contain hydroxyl groups (designated ZSA) through the use of sandblasting in conjunction with alkaline treatment. We immobilized type I collagen on ZSA surfaces using the natural cross-linker, procyanidin. Our results further showed that surfaces produced in ZSA-P/C featured more and steadier type I collagen than surfaces produced in ZSA-C. The ZSA-P/C also presented superior cell responses in terms of adhesion, proliferation, and mineralization of human bone marrow mesenchymal stem cells. The enhanced cell responses in the ZSA-P/C were induced through the prolonged activation of focal adhesion kinase, AKT (the phosphoinositide 3-kinase pathway), and p38 (the mitogen-activated protein kinase pathway). The simple and novel approach to immobilize type I collagen on roughened ZrO2 surfaces presented in this article can likely benefit dental implant applications.
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Affiliation(s)
- C M Hsu
- 1 Department of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - Y S Sun
- 1 Department of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - H H Huang
- 1 Department of Dentistry, National Yang-Ming University, Taipei, Taiwan.,2 Institute of Oral Biology, National Yang-Ming University, Taipei, Taiwan.,3 Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan.,4 Department of Education and Research, Taipei City Hospital, Taipei, Taiwan.,5 Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan.,6 Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.,7 Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
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18
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Bae EB, Yoo JH, Jeong SI, Kim MS, Lim YM, Ahn JJ, Lee JJ, Lee SH, Kim HJ, Huh JB. Effect of Titanium Implants Coated with Radiation-Crosslinked Collagen on Stability and Osseointegration in Rat Tibia. MATERIALS 2018; 11:ma11122520. [PMID: 30545019 PMCID: PMC6316992 DOI: 10.3390/ma11122520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 12/18/2022]
Abstract
This study aimed to evaluate the titanium (Ti) implants coated with collagen type Ⅰ crosslinked using gamma-irrigation or glutaraldehyde (GA). The in vitro surface observations, quantification assay, and cell studies using human mesenchymal stem cells (hMSCs) were conducted. For in vivo experiments, the implants were divided into three groups and inserted into the rat tibias: control group (non-treated Ti implant), GA group (Ti implants coated with GA-crosslinked collagen) and 25 kGy group (Ti implants coated with gamma-radiation-crosslinked collagen at dose of 25 kGy). The animals were sacrificed at 4 weeks after implantation and the tissue sections were obtained. New bone volume (mm³) and bone-to-implant contact (BIC, %) within the region of interest (ROI) was measured. The in vitro results showed the highest osteogenic differentiation and levels of osteogenesis-related gene expressions in the 25 kGy group without cytotoxicity. The new bone volume of GA group was significantly higher than the control (p < 0.05). In the result of the BIC, the 25 kGy group was significantly higher than the control (p < 0.05). However, there was no significant difference between the experimental groups. Within the limitations of this study, Ti implant coated with gamma-radiation-crosslinked collagen has potential utility without side effects from chemical agents.
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Affiliation(s)
- Eun-Bin Bae
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Ji-Hyun Yoo
- Department of Oral Physiology, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Sung-In Jeong
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Min-Su Kim
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Youn-Mook Lim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Jong-Ju Ahn
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Jin-Ju Lee
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - So-Hyoun Lee
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Hyung-Joon Kim
- Department of Oral Physiology, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
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