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Park JE, Kim DH. Advanced Immunomodulatory Biomaterials for Therapeutic Applications. Adv Healthc Mater 2024:e2304496. [PMID: 38716543 DOI: 10.1002/adhm.202304496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 04/15/2024] [Indexed: 05/22/2024]
Abstract
The multifaceted biological defense system modulating complex immune responses against pathogens and foreign materials plays a critical role in tissue homeostasis and disease progression. Recently developed biomaterials that can specifically regulate immune responses, nanoparticles, graphene, and functional hydrogels have contributed to the advancement of tissue engineering as well as disease treatment. The interaction between innate and adaptive immunity, collectively determining immune responses, can be regulated by mechanobiological recognition and adaptation of immune cells to the extracellular microenvironment. Therefore, applying immunomodulation to tissue regeneration and cancer therapy involves manipulating the properties of biomaterials by tailoring their composition in the context of the immune system. This review provides a comprehensive overview of how the physicochemical attributes of biomaterials determine immune responses, focusing on the physical properties that influence innate and adaptive immunity. This review also underscores the critical aspect of biomaterial-based immune engineering for the development of novel therapeutics and emphasizes the importance of understanding the biomaterials-mediated immunological mechanisms and their role in modulating the immune system.
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Affiliation(s)
- Ji-Eun Park
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Dong-Hwee Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
- Department of Integrative Energy Engineering, College of Engineering, Korea University, Seoul, 02841, Republic of Korea
- Biomedical Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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Calazans Neto JV, Kreve S, Valente MLDC, Reis ACD. Protein absorption on titanium surfaces treated with a high-power laser: A systematic review. J Prosthet Dent 2024; 131:591-597. [PMID: 35418317 DOI: 10.1016/j.prosdent.2022.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 11/25/2022]
Abstract
STATEMENT OF PROBLEM The surface of titanium dental implants treated with a high-power laser has been reported to favor osseointegration, mainly by altering protein uptake. Despite the large number of articles that address the topic, the heterogeneity of methodologies and results makes an understanding of the treatment's benefits difficult, and a systematic review is needed. PURPOSE The purpose of this systematic review was to further the knowledge on protein uptake on titanium surfaces that have undergone treatment with a high-power laser. MATERIAL AND METHODS This review followed the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines and was registered with the Open Science Framework (OSF) (osf.io/gcbna). Searches were performed in PubMed, Scopus, Web of Science, Embase, and Google Scholar databases. The articles were selected in 2 steps by 2 independent reviewers according to the previously selected eligibility criteria. The risk of bias was analyzed by using the Joanna Briggs Institute (JBI)-adapted quasi-experimental study evaluation tool. RESULTS The studies addressed have shown that applying a high-power laser to the implant surface, depending on its settings, generates topographical changes that can optimize the protein absorption process and thus accelerate the other biological processes. CONCLUSIONS The studies identified in this systematic review showed that surface treatment with a high-power laser represents a promising technique with a positive influence on protein uptake and osseointegration.
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Affiliation(s)
- João Vicente Calazans Neto
- Masters student, Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Simone Kreve
- Doctoral student, Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Mariana Lima da Costa Valente
- Postdoctoral student, Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Andréa Cândido Dos Reis
- Professor, Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo (USP), Ribeirão Preto, Brazil.
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Abo El-Dahab MM, El Deen GN, Aly RM, Gheith M. Infrared diode laser enhances human periodontal ligament stem cells behaviour on titanium dental implants. Sci Rep 2024; 14:4155. [PMID: 38378776 PMCID: PMC10879096 DOI: 10.1038/s41598-024-54585-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/14/2024] [Indexed: 02/22/2024] Open
Abstract
Low level laser treatment (LLLT) is known for its photobiostimulatory and photobiomodulatory characteristics, which stimulate cell proliferation, increase cellular metabolism, and improve cellular regeneration. The objective of the present research was to assess the possible influence of infrared diode laser irradiation on the behaviour, attachment, and osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs) seeded on different types of dental implants. Two distinct types of implants, one subjected to laser surface treatment and the other treated with acid etching, were longitudinally divided into two halves and submerged in six wells culture plates. Both implants were subjected to infrared diode laser treatment, and subsequently, the morphology and attachment of cells were examined using scanning electron microscopy (SEM) after 14 and 21 days. The behaviour of (hPDLSCs) towards two types of implants, when exposed to osteogenic medium and low-level laser therapy (LLLT), was assessed using quantitative real-time polymerase chain reaction to measure the expression of stemness markers and osteogenic markers. The scanning electron microscopy (SEM) demonstrated that the application of infrared diode laser irradiation substantially improved the attachment of cells to both types of implants. The stemness gene markers were significantly down regulated in cells seeded on both surfaces when challenged with osteogenic media in relation to control. At 14 days, early osteogenic markers, were upregulated, while late osteogenic markers, were downregulated in both challenged groups. At the 21-day mark, hPDLSCs seeded on an acid-etched implant exhibited increased expression of all osteogenic markers in response to stimulation with osteogenic media and infra-red diode laser, in contrast to hPDLSCs seeded on a laser surface treated implant under the same conditions. Finally, the findings of our research revealed that when subjected to infrared diode laser, human periodontal ligament stem cells cultured on both types of implants demonstrated improved cellular attachment and differentiation. This suggested that infrared diode laser enhanced the activity of the cells surrounding the implants. Hence, the use of infrared diode laser could be pivotal in improving and expediting the clinical osseointegration process around dental implants.
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Affiliation(s)
- Mohamed M Abo El-Dahab
- Department of Basic Dental Science, Oral and Dental Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622, Egypt
- Stem Cell Laboratory, Center of Excellence for Advanced Sciences, National Research Centre, Cairo, Egypt
| | - Ghada Nour El Deen
- Molecular Genetics and Enzymology Department, Human Genetic and Genome Research Institute, National Research Centre, Dokki, Cairo, Egypt
| | - Riham M Aly
- Department of Basic Dental Science, Oral and Dental Research Institute, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622, Egypt.
- Stem Cell Laboratory, Center of Excellence for Advanced Sciences, National Research Centre, Cairo, Egypt.
| | - Mostafa Gheith
- National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
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Ali M, He Y, Chang ASN, Wu A, Liu J, Cao Y, Mohammad Y, Popat A, Walsh L, Ye Q, Xu C, Kumeria T. Osteoimmune-modulating and BMP-2-eluting anodised 3D printed titanium for accelerated bone regeneration. J Mater Chem B 2023; 12:97-111. [PMID: 37842835 DOI: 10.1039/d3tb01029e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
3D printing of titanium (Ti) metal has potential to transform the field of personalised orthopaedics and dental implants. However, the impacts of controlled surface topographical features of 3D printed Ti implants on their interactions with the cellular microenvironment and incorporation of biological growth factors, which are critical in guiding the integration of implants with bone, are not well studied. In the present study, we explore the role of surface topological features of 3D printed Ti implants using an anodised titania nanotube (TiNT) surface layer in guiding their immune cell interaction and ability to deliver bioactive form of growth factors. TiNT layers with precisely controlled pore diameter (between 21and 130 nm) were anodically grown on 3D printed Ti surfaces to impart a nano-micro rough topology. Immune biomarker profiles at gene and protein levels show that anodised 3D Ti surfaces with smaller pores resulted in classical activation of macrophages (M1-like), while larger pores (i.e., >100 nm) promoted alternate activation of macrophages (M2-like). The in vitro bone mineralisation studies using the conditioned media from the immunomodulatory studies elucidate a clear impact of pore diameter on bone mineralisation. The tubular structure of TiNTs was utilised as a container to incorporate recombinant human bone morphogenetic protein-2 (BMP-2) in the presence of various sugar and polymeric cryoprotectants. Sucrose offered the most sustainable release of preserved BMP-2 from TiNTs. Downstream effects of released BMP-2 on macrophages as well as bone mineralisation were assessed showing bioactivity retention of the released rhBMP-2. Overall, the TiNT surface topography in combination with controlled, sustained, and local release of bioactive growth factors can potentially enhance the osseointegration outcomes of custom 3D printed Ti implants in the clinic.
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Affiliation(s)
- Masood Ali
- Therapeutics Research Group, Frazer Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia
| | - Yan He
- Institute of Regenerative and Translational Medicine, Wuhan University of Science and Technology, Wuhan 430040, China
| | - Anna Sze Ni Chang
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Alice Wu
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Jingyu Liu
- School of Mechanical, Medical and process Engineering, Queensland University of Technology, Brisbane, Queensland 4000, Australia
| | - Yuxue Cao
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Yousuf Mohammad
- Therapeutics Research Group, Frazer Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Laurie Walsh
- School of Dentistry, The University of Queensland, Herston, Queensland 4006, Australia.
| | - Qingsong Ye
- Centre of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Chun Xu
- School of Dentistry, The University of Queensland, Herston, Queensland 4006, Australia.
| | - Tushar Kumeria
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, New South Wales 2052, Australia
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Donos N, Akcali A, Padhye N, Sculean A, Calciolari E. Bone regeneration in implant dentistry: Which are the factors affecting the clinical outcome? Periodontol 2000 2023; 93:26-55. [PMID: 37615306 DOI: 10.1111/prd.12518] [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: 02/10/2023] [Revised: 07/08/2023] [Accepted: 08/01/2023] [Indexed: 08/25/2023]
Abstract
The key factors that are needed for bone regeneration to take place include cells (osteoprogenitor and immune-inflammatory cells), a scaffold (blood clot) that facilitates the deposition of the bone matrix, signaling molecules, blood supply, and mechanical stability. However, even when these principles are met, the overall amount of regenerated bone, its stability over time and the incidence of complications may significantly vary. This manuscript provides a critical review on the main local and systemic factors that may have an impact on bone regeneration, trying to focus, whenever possible, on bone regeneration simultaneous to implant placement to treat bone dehiscence/fenestration defects or for bone contouring. In the future, it is likely that bone tissue engineering will change our approach to bone regeneration in implant dentistry by replacing the current biomaterials with osteoinductive scaffolds combined with cells and mechanical/soluble factors and by employing immunomodulatory materials that can both modulate the immune response and control other bone regeneration processes such as osteogenesis, osteoclastogenesis, or inflammation. However, there are currently important knowledge gaps on the biology of osseous formation and on the factors that can influence it that require further investigation. It is recommended that future studies should combine traditional clinical and radiographic assessments with non-invasive imaging and with patient-reported outcome measures. We also envisage that the integration of multi-omics approaches will help uncover the mechanisms responsible for the variability in regenerative outcomes observed in clinical practice.
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Affiliation(s)
- Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Aliye Akcali
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Periodontology, Faculty of Dentistry, Dokuz Eylul University, Izmir, Turkey
| | - Ninad Padhye
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Medicine and Dentistry, Dental School, University of Parma, Parma, Italy
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Rapoport M, Bober MB, Raggio C, Wekre LL, Rauch F, Westerheim I, Hart T, van Welzenis T, Mistry A, Clancy J, Booth L, Prince S, Semler O. The patient clinical journey and socioeconomic impact of osteogenesis imperfecta: a systematic scoping review. Orphanet J Rare Dis 2023; 18:34. [PMID: 36814274 PMCID: PMC9945474 DOI: 10.1186/s13023-023-02627-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 02/06/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Osteogenesis imperfecta (OI) is a rare heritable connective tissue disorder primarily characterised by skeletal deformity and fragility, and an array of secondary features. The purpose of this review was to capture and quantify the published evidence relating specifically to the clinical, humanistic, and economic impact of OI on individuals, their families, and wider society. METHODS A systematic scoping review of 11 databases (MEDLINE, MEDLINE in-progress, EMBASE, CENTRAL, PsycINFO, NHS EED, CEA Registry, PEDE, ScHARRHUd, Orphanet and Google Scholar), supplemented by hand searches of grey literature, was conducted to identify OI literature published 1st January 1995-18th December 2021. Searches were restricted to English language but without geographical limitations. The quality of included records was assessed using the AGREE II checklist and an adapted version of the JBI cross-sectional study checklist. RESULTS Of the identified 7,850 records, 271 records of 245 unique studies met the inclusion criteria; overall, 168 included records examined clinical aspects of OI, 67 provided humanistic data, 6 reported on the economic impact of OI, and 30 provided data on mixed outcomes. Bone conditions, anthropometric measurements, oral conditions, diagnostic techniques, use of pharmacotherapy, and physical functioning of adults and children with OI were well described. However, few records included current care practice, diagnosis and monitoring, interactions with the healthcare system, or transition of care across life stages. Limited data on wider health concerns beyond bone health, how these concerns may impact health-related quality of life, in particular that of adult men and other family members, were identified. Few records described fatigue in children or adults. Markedly few records provided data on the socioeconomic impact of OI on patients and their caregivers, and associated costs to healthcare systems, and wider society. Most included records had qualitative limitations. CONCLUSION Despite the rarity of OI, the volume of recently published literature highlights the breadth of interest in the OI field from the research community. However, significant data gaps describing the experience of OI for individuals, their families, and wider society warrant further research to capture and quantify the full impact of OI.
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Affiliation(s)
| | | | | | - Lena Lande Wekre
- TRS National Resource Center for Rare Disorders, Sunnaas Rehabilitation Hospital, Bjørnemyr, Nesodden, Norway
| | | | | | - Tracy Hart
- Osteogenesis Imperfecta Foundation, Gaithersburg, MD, USA
| | | | | | | | - Lucy Booth
- Wickenstones Ltd, Abingdon, Oxfordshire, UK
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Effect of Silicon Carbide Coating on Osteoblast Mineralization of Anodized Titanium Surfaces. J Funct Biomater 2022; 13:jfb13040247. [PMID: 36412888 PMCID: PMC9680417 DOI: 10.3390/jfb13040247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to evaluate the influence of the titanium nanotube diameter and the effect of silicon carbide (SiC) coating on the proliferation and mineralization of pre-osteoblasts on titanium nanostructured surfaces. Anodized titanium sheets with nanotube diameters of 50 and 100 nm were used. The following four groups were tested in the study: (1) non-coated 50 nm nanotubes; (2) SiC-coated 50 nm titanium nanotubes; (3) non-coated 100 nm nanotubes and (4) SiC-coated 100 nm nanotubes. The biocompatibility and cytotoxicity of pre-osteoblasts were evaluated using a CellTiter-BlueCell Viability assay after 1, 2, and 3 days. After 3 days, cells attached to the surface were observed by SEM. Pre-osteoblast mineralization was determined using Alizarin-Red staining solution after 21 days of cultivation. Data were analyzed by a Kruskal−Wallis test at a p-value of 0.05. The results evidenced biocompatibility and non-cytotoxicity of both 50 and 100 nm diameter coated and non-coated surfaces after 1, 2 and 3 days. The statistical analysis indicates a statistically significant higher cell growth at 3 days (p < 0.05). SEM images after 3 days demonstrated flattened-shaped cells without any noticeable difference in the phenotypes between different diameters or surface treatments. After 21 days of induced osteogenic differentiation, the statistical analysis indicates significantly higher osteoblast calcification on coated groups of both diameters when compared with non-coated groups (p < 0.05). Based on these results, we can conclude that the titanium nanotube diameter did not play any role on cell viability or mineralization of pre-osteoblasts on SiC-coated or non-coated titanium nanotube sheets. The SiC coating demonstrated biocompatibility and non-cytotoxicity and contributed to an increase in osteoblast mineralization on titanium nanostructured surfaces when compared to non-coated groups.
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A novel method for coating calcium phosphate with trace elements extracted from bone using electrical stimulation. J Mech Behav Biomed Mater 2022; 133:105330. [DOI: 10.1016/j.jmbbm.2022.105330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/13/2022] [Accepted: 06/18/2022] [Indexed: 11/22/2022]
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Silva-Bermudez LS, Sevastyanova TN, Schmuttermaier C, De La Torre C, Schumacher L, Klüter H, Kzhyshkowska J. Titanium Nanoparticles Enhance Production and Suppress Stabilin-1-Mediated Clearance of GDF-15 in Human Primary Macrophages. Front Immunol 2021; 12:760577. [PMID: 34975851 PMCID: PMC8714923 DOI: 10.3389/fimmu.2021.760577] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/23/2021] [Indexed: 11/13/2022] Open
Abstract
Macrophages are key innate immune cells that mediate implant acceptance or rejection. Titanium implants degrade over time inside the body, which results in the release of implant wear-off particles. Titanium nanoparticles (TiNPs) favor pro-inflammatory macrophage polarization (M1) and lower tolerogenic activation (M2). GDF-15 regulates immune tolerance and fibrosis and is endocytosed by stabilin-1. How TiNPs affect the healing activities of macrophages and their release of circulating cytokines is an open question in regenerative medicine. In this study for the first time, we identified the transcriptional program induced and suppressed by TiNPs in human pro-inflammatory and healing macrophages. Microarray analysis revealed that TiNPs altered the expression of 5098 genes in M1 (IFN-γ-stimulated) and 4380 genes in M2 (IL-4–stimulated) macrophages. 1980 genes were differentially regulated in both M1 and M2. Affymetrix analysis, confirmed by RT-PCR, demonstrated that TiNPs upregulate expression of GDF-15 and suppress stabilin-1, scavenger receptor of GDF-15. TiNPs also significantly stimulated GDF-15 protein secretion in inflammatory and healing macrophages. Flow cytometry demonstrated, that scavenging activity of stabilin-1 was significantly suppressed by TiNPs. Confocal microscopy analysis showed that TiNPs impair internalization of stabilin-1 ligand acLDL and its transport to the endocytic pathway. Our data demonstrate that TiNPs have a dual effect on the GDF-15/stabilin-1 interaction in macrophage system, by increasing the production of GDF-15 and suppressing stabilin-1-mediated clearance function. In summary, this process can result in a significant increase of GDF-15 in the extracellular space and in circulation leading to unbalanced pro-fibrotic reactions and implant complications.
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Affiliation(s)
- Lina S. Silva-Bermudez
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
| | - Tatyana N. Sevastyanova
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christina Schmuttermaier
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Carolina De La Torre
- Microarray Analytics – NGS Core Facility (IKC), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Leonie Schumacher
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Harald Klüter
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
| | - Julia Kzhyshkowska
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
- *Correspondence: Julia Kzhyshkowska,
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Abaricia JO, Whitehead AJ, Kandalam S, Shah AH, Hotchkiss KM, Morandini L, Olivares-Navarrete R. E-cigarette Aerosol Mixtures Inhibit Biomaterial-Induced Osseointegrative Cell Phenotypes. MATERIALIA 2021; 20:101241. [PMID: 34778733 PMCID: PMC8589285 DOI: 10.1016/j.mtla.2021.101241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVES Smoking is a known contributor to the failure of dental implants. Despite a decline in cigarette use, the popularity of e-cigarettes has exploded. However, little is known about how e-cigarettes affect the biologic response to implants. This study examines the effect of e-cigarette aerosol mixtures (ecig-AM) on macrophage activation and osteoblastogenesis of mesenchymal stem cells (MSCs) in response to titanium (Ti) implant surfaces. METHODS Ecig-AMs were prepared by bubbling aerosol through PBS. Human-derived MSCs or murine-derived macrophages were plated on smooth, rough-hydrophobic, or rough-hydrophilic Ti surfaces in media supplemented with ecig-AM. In macrophages, expression of inflammatory markers was measured by qPCR and macrophage immunophenotype characterized by flow cytometry after 24 hours of exposure. In MSCs, expression of osteogenic markers and inflammatory cytokines was measured by qPCR and ELISA, while alkaline phosphatase activity (ALP) was determined by colorimetric assay. RESULTS Ecig-AM polarized primary macrophages into a pro-inflammatory state with higher effect on ecig-AM with flavorants and nicotine. Metabolic activity of MSCs decreased in a concentration dependent fashion and was stronger in ecig-AM containing nicotine. MSCs reduced expression of osteogenic markers in response to ecig-AM, but increased RANKL secretion, particularly at the highest ecig-AM concentrations. The effect of ecig-AM exposure was lessened when macrophages or MSCs were cultured on rough-hydrophilic substrates. SIGNIFICANCE Ecig-AM activated macrophages into a pro-inflammatory phenotype and impaired MSC-to-osteoblast differentiation in response to Ti implant surfaces. These effects were potentiated by flavorants and nicotine, suggesting that e-cigarette use may compromise the osseointegration of dental implants.
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Affiliation(s)
| | | | - Suraj Kandalam
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Arth H. Shah
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Kelly M Hotchkiss
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Lais Morandini
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
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Tang J, Li H, Guo M, Zhao Z, Liu H, Ren Y, Wang J, Cui X, Shen Y, Jin H, Zhao Y, Xiong T. Enhanced spreading, migration and osteodifferentiation of HBMSCs on macroporous CS-Ta - A biocompatible macroporous coating for hard tissue repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112411. [PMID: 34579920 DOI: 10.1016/j.msec.2021.112411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/17/2021] [Accepted: 08/30/2021] [Indexed: 02/06/2023]
Abstract
Macroporous tantalum (Ta) coating was produced on titanium alloy implant for bone repair by cold spray (CS) technology, which is a promising technology for oxygen sensitive materials. The surface characteristics as well as in vitro cytocompatibility were systematically evaluated. The results showed that a rough and macroporous CS-Ta coating was formed on the Ti6Al4V (TC4) alloy surfaces. The surface roughness showed a significant enhancement from 17.06 μm (CS-Ta-S), 27.48 μm (CS-Ta-M) to 39.21 μm (CS-Ta-L) with the increase of the average pore diameter of CS-Ta coatings from 138.25 μm, 198.25 μm to 355.56 μm. In vitro results showed that macroporous CS-Ta structure with tantalum pentoxide (Ta2O5) was more favorable to induce human bone marrow derived mesenchymal stem cells (HBMSCs) spreading, migration and osteodifferentiation than TC4. Compared with the micro-scaled structure outside the macropores, the surface micro-nano structure inside the macropores was more favorable to promote osteodifferentiation with enhanced alkaline phosphatase (ALP) activity and extracellular matrix (ECM) mineralization. In particular, CS-Ta-L with the largest pore size showed significantly enhanced integrin-α5 expression, cell migration, ALP activity, ECM mineralization as well as osteogenic-related genes including ALP, osteopontin (OPN) and osteocalcin (OCN) expression. Our results indicated that macroporous Ta coatings by CS, especially CS-Ta-L, may be promising for hard tissue repairs.
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Affiliation(s)
- Junrong Tang
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Hongyu Li
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Mingxiao Guo
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Zhipo Zhao
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Hanhui Liu
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Yupeng Ren
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Jiqiang Wang
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Xinyu Cui
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Yanfang Shen
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Huazi Jin
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Ying Zhao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Tianying Xiong
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China.
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12
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Siqueira R, Ferreira JA, Rizzante FAP, Moura GF, Mendonça DBS, de Magalhães D, Cimões R, Mendonça G. Hydrophilic titanium surface modulates early stages of osseointegration in osteoporosis. J Periodontal Res 2020; 56:351-362. [PMID: 33368275 DOI: 10.1111/jre.12827] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 10/16/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Using a mouse osteoporotic model, this study aimed to determine the influence of hydrophilic titanium surfaces on gene expression and bone formation during the osseointegration process. BACKGROUND Based on the previous evidence, it is plausible to assume that osteoporotic bone has a different potential of bone healing. Therefore, implant surface modification study that aims at enhancing bone formation to further improve short- and long-term clinical outcomes in osteoporosis is necessary. MATERIAL AND METHODS Fifty female, 3-month-old mice were included in this study. Osteoporosis was induced by ovariectomy (OVX, test group) in 25 mice. The further 25 mice had ovaries exposed but not removed (SHAM, control group). Seven weeks following the ovariectomy procedures, one customized implant (0.7 × 8 mm) of each surface was placed in each femur for both groups. Implants had either a hydrophobic surface (SAE) or a hydrophilic treatment surface (SAE-HD). Calcium (Ca) and phosphorus (P) content was measured by energy-dispersive X-ray spectroscopy (EDS) after 7 days. The femurs were analyzed for bone-to-implant contact (BIC) and bone volume fraction (BV) by nano-computed tomography (nano-CT) after 14 and 28 days. Same specimens were further submitted to histological analysis. Additionally, after 3 and 7 days, implants were removed and cells were collected around the implant to access gene expression profile of key osteogenic (Runx2, Alp, Sp7, Bsp, Sost, Ocn) and inflammatory genes (IL-1β, IL-10, Tnf-α, and Nos2) by qRT-PCR assay. Statistical analysis was performed by ANOVA and paired t test with significance at P < .05. RESULTS The amount of Ca and P deposited on the surface due to the mineralization process was higher for SAE-HD compared to SAE on the intra-group analysis. Nano-CT and histology revealed more BV and BIC for SAE-HD in SHAM and OVX groups compared to SAE. Analysis in OVX group showed that most genes (ie, ALP, Runx2) involved in the bone morphogenetic protein (BMP) signaling were significantly activated in the hydrophilic treatment. CONCLUSION Both surfaces were able to modulate bone responses toward osteoblast differentiation. SAE-HD presented a faster response in terms of bone formation and osteogenic gene expression compared to SAE. Hydrophilic surface in situations of osteoporosis seems to provide additional benefits in the early stages of osseointegration.
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Affiliation(s)
- Rafael Siqueira
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Jessica Afonso Ferreira
- Department of Periodontology and Implant Dentistry, School of Dentistry, Federal University of Uberlandia, Uberlândia, Brazil.,Department of Biological and Material Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Fábio Antônio Piola Rizzante
- Department of Comprehensive Care, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Guilherme Faria Moura
- Department of Periodontology and Implant Dentistry, School of Dentistry, Federal University of Uberlandia, Uberlândia, Brazil.,Department of Biological and Material Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | | | - Denildo de Magalhães
- Department of Periodontology and Implant Dentistry, School of Dentistry, Federal University of Uberlandia, Uberlândia, Brazil
| | - Renata Cimões
- Department of Prosthesis and Maxillofacial Surgery, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Gustavo Mendonça
- Department of Biological and Material Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
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13
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Yu W, Wang X, Guo Y, Yang S, Zhou Z, Sun X, Zhang R, Guo T, Zhou Y, Zhao J. The osteogenesis performance of titanium modified via plasma-enhanced chemical vapor deposition: in vitro and in vivo studies. ACTA ACUST UNITED AC 2020; 15:055012. [PMID: 32857733 DOI: 10.1088/1748-605x/ab9096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Titanium (Ti) and its alloys are widely used in dental implants due to their favorable mechanical properties and biocompatibility. Surface characteristics, including physical and chemical properties, are crucial factors to enhance the osteogenesis performance of Ti. The aim of this study is to evaluate amino group surface modification to facilitate the osteogenic potential and bone repair of dental implants both in vitro and in vivo. Herein, amino group-modified Ti surfaces were constructed via the plasma-enhanced chemical vapor deposition (PECVD) technique with an allylamine monomer. The adhesion, proliferation, alkaline phosphate activity and osteogenesis-related genetic expression of MG-63 cells on the surfaces were performed in vitro and presented a significant increase in amino group-modified Ti compared with that in Ti. The in vivo study in miniature pigs was evaluated through micro-computed tomography analysis and histological evaluation, which exhibited enhanced new bone formation in amino group-modified Ti compared with that in Ti after implantation for 4, 8 and 12 weeks. Consequently, amino group surface modification with the PECVD technique may provide a promising modification method to enhance the osteogenesis performance of Ti implants.
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Affiliation(s)
- Wanqi Yu
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun 130021, People's Republic of China. Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, People's Republic of China
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14
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Abaricia JO, Shah AH, Chaubal M, Hotchkiss KM, Olivares-Navarrete R. Wnt signaling modulates macrophage polarization and is regulated by biomaterial surface properties. Biomaterials 2020; 243:119920. [PMID: 32179303 PMCID: PMC7191325 DOI: 10.1016/j.biomaterials.2020.119920] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 02/15/2020] [Accepted: 02/25/2020] [Indexed: 12/28/2022]
Abstract
Macrophages are among the first cells to interact with biomaterials and ultimately determine their integrative fate. Biomaterial surface characteristics like roughness and hydrophilicity can activate macrophages to an anti-inflammatory phenotype. Wnt signaling, a key cell proliferation and differentiation pathway, has been associated with dysregulated macrophage activity in disease. However, the role Wnt signaling plays in macrophage activation and response to biomaterials is unknown. The aim of this study was to characterize the regulation of Wnt signaling in macrophages during classical pro- and anti-inflammatory polarization and in their response to smooth, rough, and rough-hydrophilic titanium (Ti) surfaces. Peri-implant Wnt signaling in macrophage-ablated (MaFIA) mice instrumented with intramedullary Ti rods was significantly attenuated compared to untreated controls. Wnt ligand mRNA were upregulated in a surface modification-dependent manner in macrophages isolated from the surface of Ti implanted in C57Bl/6 mice. In vitro, Wnt mRNAs were regulated in primary murine bone-marrow-derived macrophages cultured on Ti in a surface modification-dependent manner. When macrophageal Wnt secretion was inhibited, macrophage sensitivity to both physical and biological stimuli was abrogated. Loss of macrophage-derived Wnts also impaired recruitment of mesenchymal stem cells and T-cells to Ti implants in vivo. Finally, inhibition of integrin signaling decreased surface-dependent upregulation of Wnt genes. These results suggest that Wnt signaling regulates macrophage response to biomaterials and that macrophages are an important source of Wnt ligands during inflammation and healing.
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Affiliation(s)
- Jefferson O Abaricia
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Arth H Shah
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Manotri Chaubal
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Kelly M Hotchkiss
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States.
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15
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Ding Y, Yuan Z, Liu P, Cai K, Liu R. Fabrication of strontium-incorporated protein supramolecular nanofilm on titanium substrates for promoting osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110851. [DOI: 10.1016/j.msec.2020.110851] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/25/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023]
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16
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Zheng Y, Zheng Y, Jia L, Zhang Y, Lin Y. Integrated analysis of lncRNA-mRNA networks associated with an SLA titanium surface reveals the potential role of HIF1A-AS1 in bone remodeling. RSC Adv 2020; 10:20972-20990. [PMID: 35517763 PMCID: PMC9054372 DOI: 10.1039/d0ra01242d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022] Open
Abstract
Microstructured titanium surface implants, such as typical sandblasted and acid-etched (SLA) titanium implants, are widely used to promote bone apposition in prosthetic treatment by dental implants following tooth loss. Although there are multiple factors associated with the superior osseointegration of an SLA titanium surface, the molecular mechanisms of long noncoding RNAs (lncRNAs) are still unclear. In this study, we characterized smooth (SMO) and SLA surfaces, and compared the osteoinduction of these surfaces using human bone marrow-derived mesenchymal stem cells (hBMSCs) in vitro and implants in a rat model in vivo. Then, we used microarrays and bioinformatics analysis to investigate the differential expression profiles of mRNAs and lncRNAs on SMO and SLA titanium surfaces. An lncRNA–mRNA network was constructed, which showed an interaction between lncRNA HIF1A antisense RNA 1 (HIF1A-AS1) and vascular endothelial growth factor. We further found that knockdown of HIF1A-AS1 significantly decreased osteogenic differentiation of hBMSCs. This study screened SLA-induced lncRNAs using a systemic strategy and showed that lncRNA HIF1A-AS1 plays a role in promotion of new bone formation in the peri-implant area, providing a novel insight for future surface modifications of implants. Long non-coding RNA HIF1A-AS1 plays a role in SLA titanium surface-induced osteogenic differentiation of hBMSCs by regulating p38 MAPK.![]()
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Affiliation(s)
- Yan Zheng
- Department of Oral Implantology, Peking University School and Hospital of Stomatology 22 Zhongguancun South Avenue, Haidian District Beijing 100081 China +86-10-62173402 +86-10-62179977 ext. 5344
| | - Yunfei Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology Beijing 100081 China
| | - Lingfei Jia
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology Beijing 100081 China.,Central Laboratory, Peking University School and Hospital of Stomatology Beijing 100081 China
| | - Yu Zhang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology 22 Zhongguancun South Avenue, Haidian District Beijing 100081 China +86-10-62173402 +86-10-62179977 ext. 5344
| | - Ye Lin
- Department of Oral Implantology, Peking University School and Hospital of Stomatology 22 Zhongguancun South Avenue, Haidian District Beijing 100081 China +86-10-62173402 +86-10-62179977 ext. 5344
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17
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Grubova IY, Surmeneva MA, Surmenev RA, Neyts EC. Effect of van der Waals interactions on the adhesion strength at the interface of the hydroxyapatite–titanium biocomposite: a first-principles study. RSC Adv 2020; 10:37800-37805. [PMID: 35515192 PMCID: PMC9057198 DOI: 10.1039/d0ra06006b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/28/2020] [Indexed: 01/10/2023] Open
Abstract
Hydroxyapatite (HAP) is frequently used as biocompatible coating on Ti-based implants. In this context, the HAP-Ti adhesion is of crucial importance. Here, we report ab initio calculations to investigate the influence of Si incorporation into the amorphous calcium-phosphate (a-HAP) structure on the interfacial bonding mechanism between the a-HAP coating and an amorphous titanium dioxide (a-TiO2) substrate, contrasting two different density functionals: PBE-GGA, and DFT-D3, which are capable of describing the influence of the van der Waals (vdW) interactions. In particular, we discuss the effect of dispersion on the work of adhesion (Wad), equilibrium geometries, and charge density difference (CDD). We find that replacement of P by Si in a-HAP (a-Si-HAP) with the creation of OH vacancies as charge compensation results in a significant increase in the bond strength between the coating and substrate in the case of using the PBE-GGA functional. However, including the vdW interactions shows that these forces considerably contribute to the Wad. We show that the difference (Wad − Wad(vdW)) is on average more than 1.1 J m−2 and 0.5 J m−2 for a-HAP/a-TiO2 and a-Si-HAP/a-TiO2, respectively. These results reveal that including vdW interactions is essential for accurately describing the chemical bonding at the a-HAP/a-TiO2 interface. Dispersion interactions play a significant role in altering the bonding strength of the hydroxyapatite coating to the substrate, and such interactions is critical in molecular simulations.![]()
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Affiliation(s)
- Irina Yu. Grubova
- Research Center for Physical Materials Science and Composite Materials
- Research School of Chemistry & Applied Biomedical Sciences
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - Maria A. Surmeneva
- Research Center for Physical Materials Science and Composite Materials
- Research School of Chemistry & Applied Biomedical Sciences
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - Roman A. Surmenev
- Research Center for Physical Materials Science and Composite Materials
- Research School of Chemistry & Applied Biomedical Sciences
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - Erik C. Neyts
- Department of Chemistry
- PLASMANT Research Group
- NANOlab Center of Excellence
- University of Antwerp
- B-2610 Wilrijk
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18
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An in vitro Study on the Biocompatibility of Titanium Implants Made by Selective Laser Melting. BIOTECHNOL BIOPROC E 2019. [DOI: 10.1007/s12257-019-0105-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Atypical Mesenchymal Stromal Cell Responses to Topographic Modifications of Titanium Biomaterials Indicate Cytoskeletal- and Genetic Plasticity-Based Heterogeneity of Cells. Stem Cells Int 2019; 2019:5214501. [PMID: 31354840 PMCID: PMC6636474 DOI: 10.1155/2019/5214501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 05/03/2019] [Accepted: 05/20/2019] [Indexed: 01/03/2023] Open
Abstract
Titanium (Ti) is widely used as a biomaterial for endosseous implants due to its relatively inert surface oxide layer that enables implanted devices the ability of assembling tissue reparative components that culminate in osseointegration. Topographic modifications in the form of micro- and nanoscaled structures significantly promote osseointegration and enhance the osteogenic differentiation of adult mesenchymal stromal cells (MSCs). While the biological mechanisms central to the differential responses of tissues and cells to Ti surface modifications remain unknown, adhesion and morphological adaptation are amongst the earliest events at the cell-biomaterial interface that are highly influenced by surface topography and profoundly impact the regulation of stem cell fate determination. This study correlated the effects of Ti topographic modifications on adhesion and morphological adaptation of human MSCs with phenotypic change. The results showed that modified Ti topographies precluded the adhesion of a subset of MSCs while incurring distinct morphological constraints on adherent cells. These effects anomalously corresponded with a differential expression of stem cell pluripotency and Wnt signalling-associated markers on both modified surfaces while additionally differing between hydrophobic and hydrophilic surface modifications—though extent of osteogenic differentiation induced by both modified topographies yielded similarly significant higher levels of cellular mineralisation in contrast to polished Ti. These results suggest that in the absence of deposited proteins and soluble factors, both modified topographies incur the selective adhesion of a subpopulation of progenitors with relatively higher cytoskeletal plasticity. While the presence of deposited proteins and soluble factors does not significantly affect adherence of cells, nanotopographic modifications enhance expression of pluripotency markers in proliferative conditions, which are conversely overridden by both modified topographies in osteogenic inductive conditions. Further deciphering the mechanisms underlying cellular selectivity and Ti topographic responsiveness will improve our understanding of stem cell heterogeneity and advance the potential of MSCs in regenerative medicine.
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20
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Surface Immobilization of TiO 2 Nanotubes with Bone Morphogenetic Protein-2 Synergistically Enhances Initial Preosteoblast Adhesion and Osseointegration. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5697250. [PMID: 31032352 PMCID: PMC6457305 DOI: 10.1155/2019/5697250] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 03/10/2019] [Indexed: 11/18/2022]
Abstract
Although titanium (Ti) alloys have been widely used as implant materials, the bioinertness of pristine Ti impairs their bioactivity and early osseointegration. In the present work, we prepared TiO2 nanotubes (TNT) layer on the titanium (Ti) surface by anodic oxidation. The anodized surface was functionalized with human bone morphogenetic protein-2 coating to form the hBMP-2/TNT surface. The release behavior of hBMP-2 on the hBMP-2/TNT surface displayed a controlled and sustained pattern, compared to that on the hBMP-2/Ti surface, which showed a rapid release. In vitro cellular activity tests demonstrated that both TNT and hBMP-2/Ti surfaces, particularly the hBMP-2/TNT surface, enhanced adhesion, proliferation, and differentiation of osteoblast cells. Increased cell adhesion, improved cytoskeleton organization, and immunofluorescence staining of vinculin were observed on the modified surfaces. The TNT, hBMP-2/Ti, and hBMP-2/TNT surfaces, especially the hBMP-2/TNT surface, further displayed an upregulated gene expression of adhesion and osteogenic markers vinculin, collagen type 1, osteopontin, and osteocalcin, compared to the pristine Ti surface. In vivo experiments using a rat model demonstrated that the TNT and hBMP-2/Ti surfaces, in particular the hBMP-2/TNT surface, improved osseointegration and showed a superior bone bonding ability compared to Ti. Our study revealed a synergistic role played by TiO2 nanotubes nanotopography and hBMP-2 in promoting initial osteoblast adhesion, proliferation, differentiation, and osseointegration, thus suggesting a promising method for better modifying the implant surface.
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21
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Lyu M, Zheng Y, Jia L, Zheng Y, Liu Y, Lin Y, Di P. Genome-wide DNA-methylation profiles in human bone marrow mesenchymal stem cells on titanium surfaces. Eur J Oral Sci 2019; 127:196-209. [PMID: 30791149 DOI: 10.1111/eos.12607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2018] [Indexed: 12/22/2022]
Abstract
The characteristics of titanium (Ti) have been shown to influence dental implant fixation. Treatment of surfaces using the sandblasted, large-grit, acid-etched (SLA) method is widely used to provide effective osseointegration. However, the DNA methylation-associated mechanism by which SLA surface treatment affects osseointegration of human bone marrow mesenchymal stem cells (hBMSCs) remains elusive. Genome-wide methylation profiling of hBMSCs on SLA-treated and machined smooth Ti was performed using Illumina Infinium Methylation EPIC BeadChip at day 7 of osteogenic induction. In total, 2,846 CpG sites were differentially methylated in the SLA group compared with the machined group. Of these sites, 1,651 (covering 1,066 genes) were significantly hypermethylated and 1,195 (covering 775 genes) were significantly hypomethylated. Thirty significant enrichment pathways were observed, with Wnt signaling being the most significant. mRNA expression was identified by microarray and combined with DNA-methylation profiles. Thirty-seven genes displayed negative association between mRNA expression and DNA-methylation level, with the osteogenesis-related genes insulin-like growth factor 2 (IGF2) and carboxypeptidase X, M14 Family Member 2 (CPXM2) showing significant up-regulation and down-regulation, respectively. In summary, our results demonstrate differences between SLA-treated and machined surfaces in their effects on genome-wide DNA methylation and enrichment of osteogenic pathways in hBMSCs. We provide novel insights into genes and pathways affected by SLA treatment in hBMSCs at the molecular level.
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Affiliation(s)
- Mingyue Lyu
- Department of Implantology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yunfei Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Lingfei Jia
- Department of Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yan Zheng
- Department of Implantology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yanping Liu
- Department of Implantology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Ye Lin
- Department of Implantology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Ping Di
- Department of Implantology, Peking University School and Hospital of Stomatology, Beijing, China
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22
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Li Y, You Y, Li B, Song Y, Ma A, Chen B, Han W, Li C. Improved Cell Adhesion and Osseointegration on Anodic Oxidation Modified Titanium Implant Surface. J HARD TISSUE BIOL 2019. [DOI: 10.2485/jhtb.28.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ying Li
- Stomatological Hospital, Tianjin Medical University
| | - Yapeng You
- Stomatological Hospital, Tianjin Medical University
| | - Baoe Li
- School of Materials Science and Engineering, Hebei University of Technology
| | - Yunjia Song
- Stomatological Hospital, Tianjin Medical University
| | - Aobo Ma
- Stomatological Hospital, Tianjin Medical University
| | - Bo Chen
- Stomatological Hospital, Tianjin Medical University
| | - Wen Han
- Stomatological Hospital, Tianjin Medical University
| | - Changyi Li
- Stomatological Hospital, Tianjin Medical University
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23
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Li Y, Li B, Song Y, Ma A, Li C, Zhang X, Li H, Zhang Q, Zhang K. Improved osteoblast adhesion and osseointegration on TiO 2 nanotubes surface with hydroxyapatite coating. Dent Mater J 2018; 38:278-286. [PMID: 30541994 DOI: 10.4012/dmj.2018-118] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To improve initial osteoblast adhesion and subsequent osseointegration, TiO2 nanotubes layer was constructed on the titanium (Ti) surface by anodic oxidation (AO), with an additional hydroxyapatite (HA) coating to form the AO/HA surface. Tests on in vitro cellular activity displayed that the AO surface, especially the AO/HA surface, promoted initial adhesion, proliferation and differentiation of osteoblast cells. The modified AO and AO/HA surfaces further presented an up-regulated gene expression of osteogenic and adhesion markers collagen type 1 (COL), osteopontin (OPN), osteocalcin (OCN) and vinculin. In addition, in vivo experiments with a rat model demonstrated that the AO surface, particularly the AO/HA surface, achieved earlier osseointegration and a superior bone bonding ability compared with Ti. Our study shed light on a synergistic role played by nanotopography and HA in promoting osteoblast adhesion, proliferation, differentiation and osseointegration, thus suggesting a promising method for better modifying the implant surface.
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Affiliation(s)
- Ying Li
- Stomatological Hospital, Tianjin Medical University
| | - Baoe Li
- School of Materials Science and Engineering, Hebei University of Technology
| | - Yunjia Song
- Stomatological Hospital, Tianjin Medical University
| | - Aobo Ma
- Stomatological Hospital, Tianjin Medical University
| | - Changyi Li
- Stomatological Hospital, Tianjin Medical University
| | - Xu Zhang
- Stomatological Hospital, Tianjin Medical University
| | - Hongjie Li
- Stomatological Hospital, Tianjin Medical University
| | - Qian Zhang
- Stomatological Hospital, Tianjin Medical University
| | - Kai Zhang
- Stomatological Hospital, Tianjin Medical University
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24
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Calciolari E, Donos N. The use of omics profiling to improve outcomes of bone regeneration and osseointegration. How far are we from personalized medicine in dentistry? J Proteomics 2018; 188:85-96. [DOI: 10.1016/j.jprot.2018.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/25/2018] [Accepted: 01/30/2018] [Indexed: 12/12/2022]
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25
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Huang Y, Zheng Y, Xu Y, Li X, Zheng Y, Jia L, Li W. Titanium Surfaces Functionalized with siMIR31HG Promote Osteogenic Differentiation of Bone Marrow Mesenchymal Stem Cells. ACS Biomater Sci Eng 2018; 4:2986-2993. [PMID: 33435019 DOI: 10.1021/acsbiomaterials.8b00432] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Titanium (Ti) implants are widely used in the clinic as bone substitutes and dental implants, but further improvements are needed to obtain high osteogenic ability and consequent osseointegration. Knockdown of long noncoding RNA MIR31HG promotes osteogenic differentiation and bone formation. In this study, we fabricated a Ti surface functionalized with siRNA targeting MIR31HG (siMIR31HG) and accelerated osteogenesis of bone marrow mesenchymal stem cells (BMSCs). Chitosan/siRNA complex was loaded onto the thermal alkali-treated Ti surface to fabricate the siMIR31HG-functionalized Ti surface. The surface morphology, siRNA loading and release efficiency, and transfection efficacy were investigated, and the biological effects, such as cell proliferation, cell morphology, and osteogenic activity, were determined. The results showed that the siMIR31HG-functionalized Ti implant generated an ∼50% knockdown of MIR31HG, with no apparent cytotoxicity, which consequently enhanced osteogenic differentiation of BMSCs, as indicated by the increase of ALP production, extracellular matrix mineralization, osteogenic gene expression, and ectopic bone formation in vivo. The siMIR31HG biofunctionalization can be used to obtain better osseointegration of Ti implant in the clinic.
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Affiliation(s)
| | | | | | | | | | | | - Weiran Li
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Calciolari E, Hamlet S, Ivanovski S, Donos N. Pro-osteogenic properties of hydrophilic and hydrophobic titanium surfaces: Crosstalk between signalling pathways in in vivo models. J Periodontal Res 2018; 53:598-609. [DOI: 10.1111/jre.12550] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2018] [Indexed: 12/12/2022]
Affiliation(s)
- E. Calciolari
- Centre for Oral Immunobiology and Regenerative Medicine; Institute of Dentistry, Barts and The London School of Medicine and Dentistry; Queen Mary University of London (QMUL); London UK
- Centre for Oral Clinical Research; Institute of Dentistry, Barts and The London School of Medicine and Dentistry; Queen Mary University of London (QMUL); London UK
| | - S. Hamlet
- School of Dentistry and Oral Health; Gold Coast Campus; Griffith University; Southport QLD Australia
- Menzies Health Institute Queensland; Griffith University; Gold Coast QLD Australia
| | - S. Ivanovski
- School of Dentistry; University of Queensland; Brisbane QLD Australia
| | - N. Donos
- Centre for Oral Immunobiology and Regenerative Medicine; Institute of Dentistry, Barts and The London School of Medicine and Dentistry; Queen Mary University of London (QMUL); London UK
- Centre for Oral Clinical Research; Institute of Dentistry, Barts and The London School of Medicine and Dentistry; Queen Mary University of London (QMUL); London UK
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Early cell response of osteogenic cells on differently modified implant surfaces: Sequences of cell proliferation, adherence and differentiation. J Craniomaxillofac Surg 2017; 46:453-460. [PMID: 29325889 DOI: 10.1016/j.jcms.2017.12.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 12/10/2017] [Accepted: 12/18/2017] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES Osseointegration of dental implants is a crucial prerequisite for long-term survival. Therefore, surface modifications are needed to interact with the extracellular environment and to trigger osteogenic cell responses such as cell proliferation, adherence, and differentiation. The purpose of this study was to investigate different surface modifications in vitro over 2 weeks. MATERIALS AND METHODS Commercially available cells from a human osteogenic cell line (HHOB-c) were cultivated on the following surfaces: titanium with smooth surfaces (polished titanium (P), machined titanium (M), polyetheretherketone (Peek)), titanium with rough and hydrophilised surfaces (acid etched titanium (A), sandblasted acid etched titanium (SA and SA2), sandblasted acid etched hydrophilised (SAH), titanium plasma painted titanium (TPS)), titanium with calcium phosphate-containing surfaces (titanium plasma painted calcium phosphate modified titanium (TPS-CaP), sandblasted calcium phosphate modified titanium (S-CaP), sandblasted acid etched calcium phosphate modified titanium (SA-CaP)), and zirconium-oxide (yttrium amplified zirconium (Z), yttrium amplified Ca2+ delivering zirconium (Z-Ca)). Tissue culture polystyrene (TCPS) served as a control. Cell count was assessed after 24 h, 48 h, 72 h, 7 d, and 14 d; osteogenic cell adherence and differentiation were analysed by using cellular Quantitative Immuno-Cytochemistry (QIC) assay for alkaline phosphatase (AP), osteocalcin (OC), integrin alpha V (ITGAV), and talin (T). RESULTS All tested surfaces showed a positive influence on the differentiation and adherence of osteogenic cells, especially P, M, A, TCPS, and Peek. After 48 h, the surfaces M, SA and SAH had induced a positive influence on adherence, whereas SA2, SA, and SAH triggered proliferation after 14 d. CONCLUSIONS Rough and hydrophilised surface modifications, such as SAH, trigger osteogenic cell responses. These in vitro results highlight the potential use of SAH surface modifications of dental implants and indicate further clinical studies are warranted.
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Choi H, Park KH, Lee AR, Mun CH, Shin YD, Park YB, Park YB. Control of dental-derived induced pluripotent stem cells through modified surfaces for dental application. Acta Odontol Scand 2017; 75:309-318. [PMID: 28335666 DOI: 10.1080/00016357.2017.1303847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The aim of this study is to investigate the behaviour of iPSc derived from dental stem cells in terms of initial adhesion, differentiation potential on differently surface-treated titanium disc. MATERIALS AND METHODS iPSc derived from human gingival fibroblasts (hGFs) were established using 4-reprogramming factors transduction with Sendai virus. The hGF-iPSc established in this study exhibited the morphology and growth properties similar to human embryonic stem (ES) cells and expressed pluripotency makers. Alkaline Phosphatase (AP) staining, Embryoid Body (EB) formation and in vitro differentiation and karyotyping further confirmed pluripotency of hGF-iPSc. Then, hGF-iPSc were cultured on machined- and Sandblasted and acid etched (SLA)-treated titanium discs with osteogenic induction medium and their morphological as well as quantitative changes according to different surface types were investigated using Alizrin Red S staining, Scanning electron microscopy (SEM), Flow cytometry and RT-PCR. RESULTS Time-dependent and surface-dependent morphological changes as well as quantitative change in osteogenic differentiation of hGF-iPSc were identified and osteogenic gene expression of hGF-iPSc cultured on SLA-treated titanium disc found to be greater than machined titanium disc, suggesting the fate of hGF-iPSc may be determined by the characteristics of surface to which hGF-iPSc first adhere. CONCLUSIONS iPSc derived from dental stem cell can be one of the most promising and practical cell sources for personalized regenerative dentistry and their morphological change as well as quantitative change in osteogenic differentiation according to different surface types may be further utilized for future clinical application incorporated with dental implant.
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Affiliation(s)
- Hyunmin Choi
- Department of Prosthodontics, Oral Science Research Center, BK21 Plus Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Kyu-Hyung Park
- Department of Prosthodontics, Oral Science Research Center, BK21 Plus Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Ah-Reum Lee
- Department of Prosthodontics, Oral Science Research Center, BK21 Plus Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Chin Hee Mun
- Division of Rheumatology, Department of Internal Medicine, Institute for Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University, Seoul, Korea
- Severance Biomedical Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Yong Dae Shin
- Division of Rheumatology, Department of Internal Medicine, Institute for Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University, Seoul, Korea
| | - Yong-Beom Park
- Division of Rheumatology, Department of Internal Medicine, Institute for Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University, Seoul, Korea
- Severance Biomedical Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young-Bum Park
- Department of Prosthodontics, Oral Science Research Center, BK21 Plus Project, Yonsei University College of Dentistry, Seoul, Korea
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Maino BG, Di Blasio A, Spadoni D, Ravanetti F, Galli C, Cacchioli A, Katsaros C, Gandolfini M. The integration of orthodontic miniscrews under mechanical loading: a pre-clinical study in rabbit. Eur J Orthod 2017; 39:519-527. [DOI: 10.1093/ejo/cjw069] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ting M, Jefferies SR, Xia W, Engqvist H, Suzuki JB. Classification and Effects of Implant Surface Modification on the Bone: Human Cell-Based In Vitro Studies. J ORAL IMPLANTOL 2016; 43:58-83. [PMID: 27897464 DOI: 10.1563/aaid-joi-d-16-00079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Implant surfaces are continuously being improved to achieve faster osseointegration and a stronger bone to implant interface. This review will present the various implant surfaces, the parameters for implant surface characterization, and the corresponding in vitro human cell-based studies determining the strength and quality of the bone-implant contact. These in vitro cell-based studies are the basis for animal and clinical studies and are the prelude to further reviews on how these surfaces would perform when subjected to the oral environment and functional loading.
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Affiliation(s)
- Miriam Ting
- 1 Temple University Kornberg School of Dentistry, Philadelphia, Pa
| | - Steven R Jefferies
- 2 Department of Restorative Dentistry, Temple University Kornberg School of Dentistry, Philadelphia, Pa
| | - Wei Xia
- 3 Department of Engineering Science, Uppsala University, Uppsala, Sweden
| | - Håkan Engqvist
- 3 Department of Engineering Science, Uppsala University, Uppsala, Sweden
| | - Jon B Suzuki
- 4 Department of Periodontology and Oral Implantology, Temple University Kornberg School of Dentistry, Philadelphia, Pa
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Kim HS, Lee JI, Yang SS, Kim BS, Kim BC, Lee J. The effect of alendronate soaking and ultraviolet treatment on bone-implant interface. Clin Oral Implants Res 2016; 28:1164-1172. [PMID: 27458172 DOI: 10.1111/clr.12933] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Rapid and stable fixation of dental implants is crucial for successful treatment. Herein, we examined whether the simultaneous treatment of titanium implants with ultraviolet (UV) and alendronate (ALN) synergistically improved the bone-to-implant contact. MATERIALS AND METHODS We assessed the in vitro effects of UV radiation-treated (UV+/ALN-), ALN-soaked (UV-/ALN+), and UV radiation/ALN-treated (UV+/ALN+) titanium implants on cell proliferation, cytotoxicity, cell adhesion, and osteoblast differentiation using MG-63 osteoblast-like cells by the assays of MTS, live/dead, scanning electron microscopy (SEM), alkaline phosphatase (ALP) activity, and alizarin red S (AR-S) staining, respectively. Furthermore, in vivo bone formation at the bone-implant interface efficiency determined using a rabbit tibia implantation. Implants were divided into 3 experimental groups (UV+/ALN-, UV-/ALN+, UV+/ALN+) and the non-treated control (UV-/ALN-) group and transplanted into the proximal tibia of rabbits. At 1, 2, 4, and 8 weeks post-operation, bone formation at the bone-implant interface was evaluated by micro-computed tomography and histological analysis. RESULTS MG-63 cells cultured on UV+/ALN+ implants showed significantly higher cell proliferation, ALP activity, and calcium mineralization than those cultured on other implants (P < 0.05). Furthermore, SEM observation showed the highest increase in cell attachment and growth on the UV+/ALN+ implants. In vivo, experimental groups at all time points showed greater peri-implant bone formation than the control group. At 8 weeks post-implantation, in the UV+/ALN+ group, significantly higher bone formation was observed than the UV+/ALN- or UV-/ALN+ group, respectively (P < 0.05). CONCLUSIONS Treatment of titanium surfaces with UV and ALN may synergistically enhance osteoblastic differentiation and mineralization in vitro and enhance bone formation at the bone-implant interface in vivo. These data suggest that UV and ALN treatment may improve the osseointegration of titanium implants.
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Affiliation(s)
- Hyung Soo Kim
- Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, Wonkwang University, Daejeon, Korea
| | - Jae In Lee
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Sun Sik Yang
- Wonkwnag Bone Regeneration Research Institute, Wonkwang University, Iksan, Korea
| | | | - Bong Chul Kim
- Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, Wonkwang University, Daejeon, Korea
| | - Jun Lee
- Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, Wonkwang University, Daejeon, Korea
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Azeem A, English A, Kumar P, Satyam A, Biggs M, Jones E, Tripathi B, Basu N, Henkel J, Vaquette C, Rooney N, Riley G, O'Riordan A, Cross G, Ivanovski S, Hutmacher D, Pandit A, Zeugolis D. The influence of anisotropic nano- to micro-topography on in vitro and in vivo osteogenesis. Nanomedicine (Lond) 2016; 10:693-711. [PMID: 25816874 DOI: 10.2217/nnm.14.218] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM Topographically modified substrates are increasingly used in tissue engineering to enhance biomimicry. The overarching hypothesis is that topographical cues will control cellular response at the cell-substrate interface. MATERIALS & METHODS The influence of anisotropically ordered poly(lactic-co-glycolic acid) substrates (constant groove width of ~1860 nm; constant line width of ~2220 nm; variable groove depth of ~35, 306 and 2046 nm) on in vitro and in vivo osteogenesis were assessed. RESULTS & DISCUSSION We demonstrate that substrates with groove depths of approximately 306 and 2046 nm promote osteoblast alignment parallel to underlined topography in vitro. However, none of the topographies assessed promoted directional osteogenesis in vivo. CONCLUSION 2D imprinting technologies are useful tools for in vitro cell phenotype maintenance.
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Affiliation(s)
- Ayesha Azeem
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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Grubova I, Priamushko T, Chudinova E, Surmeneva M, Korneva O, Epple M, Prymak O, Shulepov I, Surmenev R. Formation and Characterization of Crystalline Hydroxyapatite Coating with the (002) Texture. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1757-899x/116/1/012016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Silicon-Doped Titanium Dioxide Nanotubes Promoted Bone Formation on Titanium Implants. Int J Mol Sci 2016; 17:292. [PMID: 26927080 PMCID: PMC4813156 DOI: 10.3390/ijms17030292] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/14/2016] [Accepted: 02/15/2016] [Indexed: 11/19/2022] Open
Abstract
While titanium (Ti) implants have been extensively used in orthopaedic and dental applications, the intrinsic bioinertness of untreated Ti surface usually results in insufficient osseointegration irrespective of the excellent biocompatibility and mechanical properties of it. In this study, we prepared surface modified Ti substrates in which silicon (Si) was doped into the titanium dioxide (TiO2) nanotubes on Ti surface using plasma immersion ion implantation (PIII) technology. Compared to TiO2 nanotubes and Ti alone, Si-doped TiO2 nanotubes significantly enhanced the expression of genes related to osteogenic differentiation, including Col-I, ALP, Runx2, OCN, and OPN, in mouse pre-osteoblastic MC3T3-E1 cells and deposition of mineral matrix. In vivo, the pull-out mechanical tests after two weeks of implantation in rat femur showed that Si-doped TiO2 nanotubes improved implant fixation strength by 18% and 54% compared to TiO2-NT and Ti implants, respectively. Together, findings from this study indicate that Si-doped TiO2 nanotubes promoted the osteogenic differentiation of osteoblastic cells and improved bone-Ti integration. Therefore, they may have considerable potential for the bioactive surface modification of Ti implants.
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Tillotson M, Logan N, Brett P. Osteogenic stem cell selection for repair and regeneration. Bone Rep 2016; 5:22-32. [PMID: 28326344 PMCID: PMC4926815 DOI: 10.1016/j.bonr.2016.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/23/2015] [Accepted: 01/24/2016] [Indexed: 12/20/2022] Open
Abstract
The first osteogenic cells to attach to a titanium (Ti) implant after placement are the multipotent stromal cells (MSCs) that circulate in the bloodstream and are recruited to the site of tissue damage. The reservoirs of these cells are heterogeneous in nature, consisting of a mixture of cells with varying differentiation abilities. In order to utilise these cells and to reduce the chance of unwanted events during regenerative therapies, the selection of a subset of cells that is truly multipotent is required. The behaviour of these cells has been shown to be altered by modifications to Ti implant surfaces, most notably rough, hydrophilic Ti. These changes in behaviour underpin the differences seen in clinical performance of these surfaces. In this study Human bone marrow derived stromal cells (hBMSCs) have been cultured on modified Ti surfaces in order to analyse these changes in cell behaviour. The results demonstrate the different effects of the surfaces and suggest that one surface selectively enriches the population with osteogenic adult ‘stem cells’ by inducing the cell death of the more differentiated cells. Combined with subsequent expansion in bioreactors before implantation, this may lead to a new source of cells for regenerative therapies. Different titanium surfaces elicit differing responses from bone marrow derived stromal cells. Hydrophilic rough titanium induces increased apoptosis and necrosis in MSCs in vitro. Cells selected on rough hydrophilic titanium are more osteogenic than the parent population. This may lead to a new source of osteogenic cells for regenerative therapies.
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Affiliation(s)
- Marcus Tillotson
- Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
| | - Niall Logan
- Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
| | - Peter Brett
- Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
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English A, Azeem A, Spanoudes K, Jones E, Tripathi B, Basu N, McNamara K, Tofail SAM, Rooney N, Riley G, O'Riordan A, Cross G, Hutmacher D, Biggs M, Pandit A, Zeugolis DI. Substrate topography: A valuable in vitro tool, but a clinical red herring for in vivo tenogenesis. Acta Biomater 2015; 27:3-12. [PMID: 26318365 DOI: 10.1016/j.actbio.2015.08.035] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 08/22/2015] [Accepted: 08/25/2015] [Indexed: 01/22/2023]
Abstract
Controlling the cell-substrate interactions at the bio-interface is becoming an inherent element in the design of implantable devices. Modulation of cellular adhesion in vitro, through topographical cues, is a well-documented process that offers control over subsequent cellular functions. However, it is still unclear whether surface topography can be translated into a clinically functional response in vivo at the tissue/device interface. Herein, we demonstrated that anisotropic substrates with a groove depth of ∼317nm and ∼1988nm promoted human tenocyte alignment parallel to the underlying topography in vitro. However, the rigid poly(lactic-co-glycolic acid) substrates used in this study upregulated the expression of chondrogenic and osteogenic genes, indicating possible tenocyte trans-differentiation. Of significant importance is that none of the topographies assessed (∼37nm, ∼317nm and ∼1988nm groove depth) induced extracellular matrix orientation parallel to the substrate orientation in a rat patellar tendon model. These data indicate that two-dimensional imprinting technologies are useful tools for in vitro cell phenotype maintenance, rather than for organised neotissue formation in vivo, should multifactorial approaches that consider both surface topography and substrate rigidity be established. STATEMENT OF SIGNIFICANCE Herein, we ventured to assess the influence of parallel groves, ranging from nano- to micro-level, on tenocytes response in vitro and on host response using a tendon and a subcutaneous model. In vitro analysis indicates that anisotropically ordered micro-scale grooves, as opposed to nano-scale grooves, maintain physiological cell morphology. The rather rigid PLGA substrates appeared to induce trans-differentiation towards chondrogenic and/or steogenic lineage, as evidence by TILDA gene analysis. In vivo data in both tendon and subcutaneous models indicate that none of the substrates induced bidirectional host cell and tissue growth. Collective, these observations indicate that two-dimensional imprinting technologies are useful tools for in vitro cell phenotype maintenance, rather than for directional neotissue formation, should multifactorial approaches that consider both surface topography and substrate rigidity be established.
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Affiliation(s)
- Andrew English
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Ayesha Azeem
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Kyriakos Spanoudes
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Eleanor Jones
- School of Biological Sciences, University of East Anglia, Norwich, UK
| | - Bhawana Tripathi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Nandita Basu
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Karrina McNamara
- Materials and Surface Science Institute (MSSI), Department of Physics and Energy, University of Limerick, Limerick, Ireland
| | - Syed A M Tofail
- Materials and Surface Science Institute (MSSI), Department of Physics and Energy, University of Limerick, Limerick, Ireland
| | | | - Graham Riley
- School of Biological Sciences, University of East Anglia, Norwich, UK
| | | | - Graham Cross
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Dietmar Hutmacher
- Institute of Health & Biomedical Innovation, Queensland University of Technology, Australia
| | - Manus Biggs
- Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland.
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Butt A, Hamlekhan A, Patel S, Royhman D, Sukotjo C, Mathew MT, Shokuhfar T, Takoudis C. A Novel Investigation of the Formation of Titanium Oxide Nanotubes on Thermally Formed Oxide of Ti-6Al-4V. J ORAL IMPLANTOL 2015; 41:523-31. [DOI: 10.1563/aaid-joi-d-13-00340] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Traditionally, titanium oxide (TiO2) nanotubes (TNTs) are anodized on Ti-6Al-4V alloy (Ti-V) surfaces with native TiO2 (amorphous TiO2); subsequent heat treatment of anodized surfaces has been observed to enhance cellular response. As-is bulk Ti-V, however, is often subjected to heat treatment, such as thermal oxidation (TO), to improve its mechanical properties. Thermal oxidation treatment of Ti-V at temperatures greater than 200°C and 400°C initiates the formation of anatase and rutile TiO2, respectively, which can affect TNT formation. This study aims at understanding the TNT formation mechanism on Ti-V surfaces with TO-formed TiO2 compared with that on as-is Ti-V surfaces with native oxide. Thermal oxidation–formed TiO2 can affect TNT formation and surface wettability because TO-formed TiO2 is expected to be part of the TNT structure. Surface characterization was carried out with field emission scanning electron microscopy, energy dispersive x-ray spectroscopy, water contact angle measurements, and white light interferometry. The TNTs were formed on control and 300°C and 600°C TO-treated Ti-V samples, and significant differences in TNT lengths and surface morphology were observed. No difference in elemental composition was found. Thermal oxidation and TO/anodization treatments produced hydrophilic surfaces, while hydrophobic behavior was observed over time (aging) for all samples. Reduced hydrophobic behavior was observed for TO/anodized samples when compared with control, control/anodized, and TO-treated samples. A method for improved surface wettability and TNT morphology is therefore discussed for possible applications in effective osseointegration of dental and orthopedic implants.
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Affiliation(s)
- Arman Butt
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Ill
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
| | - Azhang Hamlekhan
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, Mich
| | - Sweetu Patel
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Ill
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
| | - Dmitry Royhman
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Cortino Sukotjo
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Mathew T. Mathew
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Orthopedics, Rush University Medical Center, Chicago, Ill
| | - Tolou Shokuhfar
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, Mich
| | - Christos Takoudis
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Ill
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Ill
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Mariscal-Muñoz E, Costa CAS, Tavares HS, Bianchi J, Hebling J, Machado JPB, Lerner UH, Souza PPC. Osteoblast differentiation is enhanced by a nano-to-micro hybrid titanium surface created by Yb:YAG laser irradiation. Clin Oral Investig 2015. [PMID: 26224513 DOI: 10.1007/s00784-015-1533-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aim of this study was to analyze the capacity of a new modified laser surface to stimulate calvarial osteoblasts isolated from neonatal mouse bones to differentiate and form mineralized nodules. METHODS Titanium discs were subjectezd or not to laser irradiation according to specific parameters and characterized. Osteoblasts isolated from neonatal mouse calvaria were cultured over the discs, and the capacity of these cells to proliferate (MTT assay), form mineralized nodules (Alizarin red assay), and enhance alkaline phosphatase activity (ALPase activity) was analyzed. Real-time PCR was used for quantification of gene expression. RESULTS Laser-irradiated titanium discs (L) presented a rough nano-to-micrometric oxidized surface contrasting with the smooth pattern on polished discs (P). The Ra on the micrometric level increased from 0.32 ± 0.01 μm on P surfaces to 10.57 ± 0.39 μm on L surfaces. When compared with P, L promoted changes in osteoblast morphology, increased mineralized nodule formation in osteoblasts cultured on the surfaces for 14 days, and enhanced ALPase activity at days 7 and 14. Transcription factors triggering osteoblast differentiation (Runx2 and Sp7) and genes encoding the bone extracellular matrix proteins collagen type-1 (Col1a1), osteopontin (Spp1), and osteocalcin (Bglap) were upregulated in cells on L surfaces compared with those on P surfaces at days 1-14. CONCLUSION Laser treatment of titanium surfaces created a rough surface that stimulated osteoblast differentiation. CLINICAL RELEVANCE Laser treatment of titanium generates a reproducible and efficient surface triggering osteoblast differentiation that can be of importance for osteointegration.
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Affiliation(s)
- Eduardo Mariscal-Muñoz
- Department of Physiology and Pathology, Faculty of Dentistry at Araraquara, Univ. Estadual Paulista-UNESP, Araraquara, São Paulo, 14801-903, Brazil
| | - Carlos A S Costa
- Department of Physiology and Pathology, Faculty of Dentistry at Araraquara, Univ. Estadual Paulista-UNESP, Araraquara, São Paulo, 14801-903, Brazil
| | - Hewerson S Tavares
- Department of Physiology and Pathology, Faculty of Dentistry at Araraquara, Univ. Estadual Paulista-UNESP, Araraquara, São Paulo, 14801-903, Brazil
| | - Jonas Bianchi
- Department of Physiology and Pathology, Faculty of Dentistry at Araraquara, Univ. Estadual Paulista-UNESP, Araraquara, São Paulo, 14801-903, Brazil
| | - Josimeri Hebling
- Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry at Araraquara, Univ. Estadual Paulista-UNESP, Araraquara, São Paulo, 14801-903, Brazil
| | - João P B Machado
- National Institute for Space Research-INPE, São José dos Campos, São Paulo, 12227-010, Brazil
| | - Ulf H Lerner
- Umeå University, Umeå, S-901 87, Sweden.,Sahlgrenska Academy at University of Gothenburg, Gothenburg, S-405 30, Sweden
| | - Pedro P C Souza
- Department of Physiology and Pathology, Faculty of Dentistry at Araraquara, Univ. Estadual Paulista-UNESP, Araraquara, São Paulo, 14801-903, Brazil.
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Logan N, Bozec L, Traynor A, Brett P. Mesenchymal stem cell response to topographically modified CoCrMo. J Biomed Mater Res A 2015; 103:3747-56. [PMID: 26015290 PMCID: PMC4975717 DOI: 10.1002/jbm.a.35514] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 05/14/2015] [Accepted: 05/19/2015] [Indexed: 12/19/2022]
Abstract
Surface roughness on implant materials has been shown to be highly influential on the behavior of osteogenic cells. Four surface topographies were engineered on cobalt chromium molybdenum (CoCrMo) in order to examine this influence on human mesenchymal stem cells (MSC). These treatments were smooth polished (SMO), acid etched (AE) using HCl 7.4% and H2SO4 76% followed by HNO3 30%, sand blasted, and acid etched using either 50 μm Al2O3 (SLA50) or 250 μm Al2O3 grit (SLA250). Characterization of the surfaces included energy dispersive X‐ray analysis (EDX), contact angle, and surface roughness analysis. Human MSCs were cultured onto the four CoCrMo substrates and markers of cell attachment, retention, proliferation, cytotoxicity, and osteogenic differentiation were studied. Residual aluminum was observed on both SLA surfaces although this appeared to be more widely spread on SLA50, whilst SLA250 was shown to have the roughest topography with an Ra value greater than 1 μm. All substrates were shown to be largely non‐cytotoxic although both SLA surfaces were shown to reduce cell attachment, whilst SLA50 also delayed cell proliferation. In contrast, SLA250 stimulated a good rate of proliferation resulting in the largest cell population by day 21. In addition, SLA250 stimulated enhanced cell retention, calcium deposition, and hydroxyapatite formation compared to SMO (p < 0.05). The enhanced response stimulated by SLA250 surface modification may prove advantageous for increasing the bioactivity of implants formed of CoCrMo. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 103A: 3747–3756, 2015.
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Affiliation(s)
- Niall Logan
- Biomaterials and Tissue Engineering, University College London, Eastman Dental Institute, London, WC1X 8LD, United Kingdom
| | - Laurent Bozec
- Biomaterials and Tissue Engineering, University College London, Eastman Dental Institute, London, WC1X 8LD, United Kingdom
| | - Alison Traynor
- Corin Ltd, Cirencester, Gloucestershire, Gl7 1YJ, United Kingdom
| | - Peter Brett
- Biomaterials and Tissue Engineering, University College London, Eastman Dental Institute, London, WC1X 8LD, United Kingdom
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Boda SK, Thrivikraman G, Basu B. Magnetic field assisted stem cell differentiation – role of substrate magnetization in osteogenesis. J Mater Chem B 2015; 3:3150-3168. [DOI: 10.1039/c5tb00118h] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Substrate magnetization as a tool for modulating the osteogenesis of human mesenchymal stem cells for bone tissue engineering applications.
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Affiliation(s)
- Sunil Kumar Boda
- Laboratory for Biomaterials
- Materials Research Centre
- Indian Institute of Science
- Bangalore – 560012
- India
| | - Greeshma Thrivikraman
- Laboratory for Biomaterials
- Materials Research Centre
- Indian Institute of Science
- Bangalore – 560012
- India
| | - Bikramjit Basu
- Laboratory for Biomaterials
- Materials Research Centre
- Indian Institute of Science
- Bangalore – 560012
- India
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Monetta T, Marchesano G, Bellucci F, Lupo G, Itro A. Valutazione della rugosità degli impianti dentali in titanio. DENTAL CADMOS 2014. [DOI: 10.1016/s0011-8524(14)70204-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Logan N, Sherif A, Cross AJ, Collins SN, Traynor A, Bozec L, Parkin IP, Brett P. TiO
2
‐coated CoCrMo: Improving the osteogenic differentiation and adhesion of mesenchymal stem cells
in vitro. J Biomed Mater Res A 2014; 103:1208-17. [DOI: 10.1002/jbm.a.35264] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 06/02/2014] [Accepted: 06/10/2014] [Indexed: 01/05/2023]
Affiliation(s)
- Niall Logan
- Biomaterials and Tissue EngineeringUniversity College London, Eastman Dental InstituteLondonWC1X 8LD United Kingdom
| | - Anas Sherif
- Biomaterials and Tissue EngineeringUniversity College London, Eastman Dental InstituteLondonWC1X 8LD United Kingdom
| | - Alison J. Cross
- Department of ChemistryUniversity College LondonLondonWC1H 0AJ United Kingdom
| | | | - Alison Traynor
- Corin Ltd, CirencesterGloucestershireGL7 1YJ United Kingdom
| | - Laurent Bozec
- Biomaterials and Tissue EngineeringUniversity College London, Eastman Dental InstituteLondonWC1X 8LD United Kingdom
| | - Ivan P. Parkin
- Department of ChemistryUniversity College LondonLondonWC1H 0AJ United Kingdom
| | - Peter Brett
- Biomaterials and Tissue EngineeringUniversity College London, Eastman Dental InstituteLondonWC1X 8LD United Kingdom
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Barone A, Toti P, Funel N, Campani D, Covani U. Expression of SP7, RUNX1, DLX5, and CTNNB1 in human mesenchymal stem cells cultured on xenogeneic bone substitute as compared with machined titanium. IMPLANT DENT 2014; 23:407-15. [PMID: 25025858 DOI: 10.1097/id.0000000000000116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE The aim of this research was to investigate the gene expression profile of 4 transcription factors in human mesenchymal stem cells (hMSC) cultured with a xenogeneic bone substitute and a support of machined titanium. MATERIAL AND METHODS In vitro studies were performed on hMSC cells, which grew in contact with cortical porcine bone and machined titanium disks for 10 days. RNA quantification for genes DLX5, CTNNB1, RUNX1, and SP7 was assessed by quantitative real-time polymerase chain reaction. For cells supported by titanium, immunocytochemistry of osteocalcin (OC) was also performed. RESULTS In the osteoblast-induced cells (OIC), DLX5, CTNNB1, and RUNX1 were significantly upregulated (+2.38-, +3.51-, and +7.08-fold, respectively), whereas SP7 was downregulated (-26.32-fold). None of the genes seemed to be upregulated or downregulated by the corticocancellous porcine bone. In cells grown on titanium support, DLX5 and RUNX1 were respectively upregulated (+3.12-fold) and downregulated (-2.14-fold). For titanium support, the presence of both catenin beta-1 and OC was verified. CONCLUSION The 2 genes RUNX1 and SP7 resulted differently expressed in cells cultured on metallic supports if compared with the expression recorded for OIC. An induction of the osteogenic phenotype was observed when cells were cultured on machined titanium, but not on xenogeneic material.
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Affiliation(s)
- Antonio Barone
- *Adjunct Professor, Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy; Tuscan Stomatologic Institute, Versilia General Hospital, Lido di Camaiore, Italy. †Postdoctoral Fellow, Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy; Tuscan Stomatologic Institute, Versilia General Hospital, Lido di Camaiore, Italy. ‡Postdoctoral Fellow, Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy; Tuscan Stomatologic Institute, Versilia General Hospital, Lido di Camaiore, Italy. §Associate Professor, Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy; Tuscan Stomatologic Institute, Versilia General Hospital, Lido di Camaiore, Italy. ‖Professor, Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy; Tuscan Stomatologic Institute, Versilia General Hospital, Lido di Camaiore, Italy
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Brie IC, Soritau O, Dirzu N, Berce C, Vulpoi A, Popa C, Todea M, Simon S, Perde-Schrepler M, Virag P, Barbos O, Chereches G, Berce P, Cernea V. Comparative in vitro study regarding the biocompatibility of titanium-base composites infiltrated with hydroxyapatite or silicatitanate. J Biol Eng 2014; 8:14. [PMID: 24987458 PMCID: PMC4077223 DOI: 10.1186/1754-1611-8-14] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 06/13/2014] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The development of novel biomaterials able to control cell activities and direct their fate is warranted for engineering functional bone tissues. Adding bioactive materials can improve new bone formation and better osseointegration. Three types of titanium (Ti) implants were tested for in vitro biocompatibility in this comparative study: Ti6Al7Nb implants with 25% total porosity used as controls, implants infiltrated using a sol-gel method with hydroxyapatite (Ti HA) and silicatitanate (Ti SiO2). The behavior of human osteoblasts was observed in terms of adhesion, cell growth and differentiation. RESULTS The two coating methods have provided different morphological and chemical properties (SEM and EDX analysis). Cell attachment in the first hour was slower on the Ti HA scaffolds when compared to Ti SiO2 and porous uncoated Ti implants. The Alamar blue test and the assessment of total protein content uncovered a peak of metabolic activity at day 8-9 with an advantage for Ti SiO2 implants. Osteoblast differentiation and de novo mineralization, evaluated by osteopontin (OP) expression (ELISA and immnocytochemistry), alkaline phosphatase (ALP) activity, calcium deposition (alizarin red), collagen synthesis (SIRCOL test and immnocytochemical staining) and osteocalcin (OC) expression, highlighted the higher osteoconductive ability of Ti HA implants. Higher soluble collagen levels were found for cells cultured in simple osteogenic differentiation medium on control Ti and Ti SiO2 implants. Osteocalcin (OC), a marker of terminal osteoblastic differentiation, was most strongly expressed in osteoblasts cultivated on Ti SiO2 implants. CONCLUSIONS The behavior of osteoblasts depends on the type of implant and culture conditions. Ti SiO2 scaffolds sustain osteoblast adhesion and promote differentiation with increased collagen and non-collagenic proteins (OP and OC) production. Ti HA implants have a lower ability to induce cell adhesion and proliferation but an increased capacity to induce early mineralization. Addition of growth factors BMP-2 and TGFβ1 in differentiation medium did not improve the mineralization process. Both types of infiltrates have their advantages and limitations, which can be exploited depending on local conditions of bone lesions that have to be repaired. These limitations can also be offset through methods of functionalization with biomolecules involved in osteogenesis.
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Affiliation(s)
- Ioana-Carmen Brie
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania ; University of Medicine and Pharmacy "Iuliu Hatieganu" Cluj-Napoca, Cluj-Napoca, Romania
| | - Olga Soritau
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania
| | | | - Cristian Berce
- University of Medicine and Pharmacy "Iuliu Hatieganu" Cluj-Napoca, Cluj-Napoca, Romania
| | - Adriana Vulpoi
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes Bolyai University, 400084 Cluj-Napoca, Romania
| | | | - Milica Todea
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes Bolyai University, 400084 Cluj-Napoca, Romania
| | - Simion Simon
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes Bolyai University, 400084 Cluj-Napoca, Romania
| | - Maria Perde-Schrepler
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania
| | - Piroska Virag
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania
| | - Otilia Barbos
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania
| | - Gabriela Chereches
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania
| | | | - Valentin Cernea
- The Institute of Oncology "Prof. Dr. I. Chiricuta" Cluj-Napoca, Cluj-Napoca, Romania ; University of Medicine and Pharmacy "Iuliu Hatieganu" Cluj-Napoca, Cluj-Napoca, Romania
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A Comparative Evaluation between New Ternary Zirconium Alloys as Alternative Metals for Orthopedic and Dental Prosthetic Devices. Int J Artif Organs 2014; 37:149-64. [DOI: 10.5301/ijao.5000287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2013] [Indexed: 11/20/2022]
Abstract
Purpose We assessed in vitro the corrosion behavior and biocompatibility of four Zr-based alloys (Zr97.5 Nb1.5 VM1.0 ; VM, valve metal: Ti, Mo, W, Ta; at%) to be used as implant materials, comparing the results with grade-2 titanium, a biocompatible metal standard. Methods Corrosion resistance was investigated by open circuit potential and electrochemical impedance spectroscopy measurements as a function of exposure time to an artificial physiological environment (Ringer's solution). Human bone marrow stromal cells were used to evaluate biocompatibility of the alloys and their influence on growth kinetics and cell osteogenic differentiation through histochemical and gene expression analyses. Results Open circuit potential values indicated that Zr-based alloys and grade-2 Ti undergo spontaneous passivation in the simulated aggressive environment. High impedance values for all samples demonstrated improved corrosion resistance of the oxide film, with the best protection characteristics displayed by Zr97.5 Nb1.5 Ta1.0. Cells seeded on all surfaces showed the same growth kinetics, although matrix mineralization and alkaline phosphatase activity were maximal on Zr97.5 Nb1.5 Mo1.0 and Zr97.5 Nb1.5 Ta1.0. Markers of ongoing proliferation, however, such as podocalyxin and CD49f, were still overexpressed on Zr97.5 Nb1.5 Mo1.0 even upon osteoinduction. No relevant effects were noted for the CD146-expressing population of bone progenitors. Nonetheless, the presence of a more differentiated cell population on Zr97.5 Nb1.5 Ta1.0 samples was inferable by comparing mineralization data and transcript levels of osteogenic markers (osteocalcin, osteopontin, bone sialoprotein, and RUNX2). Conclusions The combination of passivation, corrosion resistance and satisfactory biotolerance to bone progenitors make the Zr-based alloys promising implant materials. Among those we tested, Zr97.5 Nb1.5 Ta1.0 seems to be the most appealing.
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Amin HD, Brady MA, St-Pierre JP, Stevens MM, Overby DR, Ethier CR. Stimulation of chondrogenic differentiation of adult human bone marrow-derived stromal cells by a moderate-strength static magnetic field. Tissue Eng Part A 2014; 20:1612-20. [PMID: 24506272 DOI: 10.1089/ten.tea.2013.0307] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tissue-engineering strategies for the treatment of osteoarthritis would benefit from the ability to induce chondrogenesis in precursor cells. One such cell source is bone marrow-derived stromal cells (BMSCs). Here, we examined the effects of moderate-strength static magnetic fields (SMFs) on chondrogenic differentiation in human BMSCs in vitro. Cells were cultured in pellet form and exposed to several strengths of SMFs for various durations. mRNA transcript levels of the early chondrogenic transcription factor SOX9 and the late marker genes ACAN and COL2A1 were determined by reverse transcription-polymerase chain reaction, and production of the cartilage-specific macromolecules sGAG, collage type 2 (Col2), and proteoglycans was determined both biochemically and histologically. The role of the transforming growth factor (TGF)-β signaling pathway was also examined. Results showed that a 0.4 T magnetic field applied for 14 days elicited a strong chondrogenic differentiation response in cultured BMSCs, so long as TGF-β3 was also present, that is, a synergistic response of a SMF and TGF-β3 on BMSC chondrogenic differentiation was observed. Further, SMF alone caused TGF-β secretion in culture, and the effects of SMF could be abrogated by the TGF-β receptor blocker SB-431542. These data show that moderate-strength magnetic fields can induce chondrogenesis in BMSCs through a TGF-β-dependent pathway. This finding has potentially important applications in cartilage tissue-engineering strategies.
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Affiliation(s)
- Harsh D Amin
- 1 Department of Bioengineering, Imperial College London , London, United Kingdom
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Logan N, Cross AJ, Traynor A, Bozec L, Parkin IP, Brett P. Mesenchymal stem cell response to UV-photofunctionalized TiO 2coated CoCrMo. RSC Adv 2014. [DOI: 10.1039/c4ra11524d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
UV photofunctionalization of TiO2coated implant surfaces enhanced markers of cell adhesion. This may prove to be advantageous for orthopaedic implants by supporting the colonisation and adhesion of cells capable of facilitating in bone healing.
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Affiliation(s)
- Niall Logan
- Biomaterials and Tissue Engineering
- University College London
- Eastman Dental Institute
- London, UK
| | | | | | - Laurent Bozec
- Biomaterials and Tissue Engineering
- University College London
- Eastman Dental Institute
- London, UK
| | - Ivan P. Parkin
- Department of Chemistry
- University College London
- London, UK
| | - Peter Brett
- Biomaterials and Tissue Engineering
- University College London
- Eastman Dental Institute
- London, UK
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Patel SB, Hamlekhan A, Royhman D, Butt A, Yuan J, Shokuhfar T, Sukotjo C, Mathew MT, Jursich G, Takoudis CG. Enhancing surface characteristics of Ti–6Al–4V for bio-implants using integrated anodization and thermal oxidation. J Mater Chem B 2014; 2:3597-3608. [DOI: 10.1039/c3tb21731k] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Park HS, Gong MS, Park JH, Moon SI, Wall IB, Kim HW, Lee JH, Knowles JC. Silk fibroin-polyurethane blends: physical properties and effect of silk fibroin content on viscoelasticity, biocompatibility and myoblast differentiation. Acta Biomater 2013; 9:8962-71. [PMID: 23892141 DOI: 10.1016/j.actbio.2013.07.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/04/2013] [Accepted: 07/11/2013] [Indexed: 12/22/2022]
Abstract
As a way to modify both the physical and biological properties of a highly elastic and degradable polyurethane (PU), silk fibroin (SF) was blended with the PU at differing ratios. With increasing SF content, the tensile strength decreased as did the strain at break; the stiffness increased to around 35 MPa for the highest silk content. C2C12 (a mouse myoblast cell line) cells were used for in vitro experiments and showed significantly improved cell responses with increasing SF content. With increasing SF content the number of non-adherent cells was reduced at both 4 and 8h compared to the sample with the lowest SF content. In addition, muscle marker genes were upregulated compared to the sample containing no SF, and in particular sarcomeric actin and α-actin.
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The multiple facets of the TGF-β family cytokine growth/differentiation factor-15/macrophage inhibitory cytokine-1. Cytokine Growth Factor Rev 2013; 24:373-84. [DOI: 10.1016/j.cytogfr.2013.05.003] [Citation(s) in RCA: 193] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 05/21/2013] [Indexed: 12/23/2022]
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