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Souza A, Kevin M, Rodriguez BJ, Reynaud EG. The use of fluid-phase 3D printing to pattern alginate-gelatin hydrogel properties to guide cell growth and behaviour in vitro. Biomed Mater 2024; 19:045024. [PMID: 38810635 DOI: 10.1088/1748-605x/ad51bf] [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: 11/01/2023] [Accepted: 05/29/2024] [Indexed: 05/31/2024]
Abstract
Three-dimensional (3D) (bio)printing technology has boosted the advancement of the biomedical field. However, tissue engineering is an evolving field and (bio)printing biomimetic constructions for tissue formation is still a challenge. As a new methodology to facilitate the construction of more complex structures, we suggest the use of the fluid-phase 3D printing to pattern the scaffold's properties. The methodology consists of an exchangeable fluid-phase printing medium in which the constructions are fabricated and patterned during the printing process. Using the fluid-phase methodology, the biological and mechanical properties can be tailored promoting cell behaviour guidance and compartmentalization. In this study, we first assessed different formulations of alginate/gelatin to create a stable substrate capable to promote massive cell colonizationin vitroover time. Overall, formulations with lower gelatin content and 2-(N-morpholino)ethanesulfonic acid (MES) buffer as a solvent showed better stability under cell culture conditions and enhanced U2OS cell growth. Next, the fluid-phase showed better printing fidelity and resolution in comparison to air printing as it diminished the collapsing and the spread of the hydrogel strand. In sequence, the fluid-phase methodology was used to create functionalized alginate-gelatin-arginylglycylaspartic acid peptide (RGD) hydrogels via carbodiimides chemistry. The alginate-gelatin-RGD hydrogels showed an increase of 2.97-fold in cell growth and more spread substrate colonization in comparison to alginate-gelatin hydrogel. Moreover, the fluid-phase methodology was used to add RGD molecules to pre-determined parts of the alginate-gelatin substrate during the printing process promoting U2OS cell compartmentalization. In addition, different substrate stiffnesses were also created via fluid-phase by crosslinking the hydrogel with different concentrations of CaCl2during the printing process. As a result, the U2OS cells were also compartmentalized on the stiffer parts of the printings. Finally, our results showed that by combining stiffer hydrogel with RGD increasing concentrations we can create a synergetic effect and boost cell metabolism by up to 3.17-fold. This work presents an idea of a new printing process for tailoring multiple parameters in hydrogel substrates by using fluid-phase to generate more faithful replication of thein vivoenvironment.
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Affiliation(s)
- Andrea Souza
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield Dublin 4, Ireland
| | - McCarthy Kevin
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield Dublin 4, Ireland
| | - Brian J Rodriguez
- School of Physics, University College Dublin, Belfield Dublin 4, Ireland
| | - Emmanuel G Reynaud
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield Dublin 4, Ireland
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2
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Sefa S, Espiritu J, Ćwieka H, Greving I, Flenner S, Will O, Beuer S, Wieland DF, Willumeit-Römer R, Zeller-Plumhoff B. Multiscale morphological analysis of bone microarchitecture around Mg-10Gd implants. Bioact Mater 2023; 30:154-168. [PMID: 37575877 PMCID: PMC10412723 DOI: 10.1016/j.bioactmat.2023.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/07/2023] [Accepted: 07/20/2023] [Indexed: 08/15/2023] Open
Abstract
The utilization of biodegradable magnesium (Mg)-based implants for restoration of bone function following trauma represents a transformative approach in orthopaedic application. One such alloy, magnesium-10 weight percent gadolinium (Mg-10Gd), has been specifically developed to address the rapid degradation of Mg while enhancing its mechanical properties to promote bone healing. Previous studies have demonstrated that Mg-10Gd exhibits favorable osseointegration; however, it exhibits distinct ultrastructural adaptation in comparison to conventional implants like titanium (Ti). A crucial aspect that remains unexplored is the impact of Mg-10Gd degradation on the bone microarchitecture. To address this, we employed hierarchical three-dimensional imaging using synchrotron radiation in conjunction with image-based finite element modelling. By using the methods outlined, the vascular porosity, lacunar porosity and the lacunar-canaliculi network (LCN) morphology of bone around Mg-10Gd in comparison to Ti in a rat model from 4 weeks to 20 weeks post-implantation was investigated. Our investigation revealed that within our observation period, the degradation of Mg-10Gd implants was associated with significantly lower (p < 0.05) lacunar density in the surrounding bone, compared to Ti. Remarkably, the LCN morphology and the fluid flow analysis did not significantly differ for both implant types. In summary, a more pronounced lower lacunae distribution rather than their morphological changes was detected in the surrounding bone upon the degradation of Mg-10Gd implants. This implies potential disparities in bone remodelling rates when compared to Ti implants. Our findings shed light on the intricate relationship between Mg-10Gd degradation and bone microarchitecture, contributing to a deeper understanding of the implications for successful osseointegration.
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Affiliation(s)
- Sandra Sefa
- Institute of Metallic Biomaterials, Helmholtz Zentrum Hereon, Geesthacht, Germany
| | | | - Hanna Ćwieka
- Institute of Metallic Biomaterials, Helmholtz Zentrum Hereon, Geesthacht, Germany
| | - Imke Greving
- Institute of Materials Physics, Helmholtz Zentrum Hereon, Geesthacht, Germany
| | - Silja Flenner
- Institute of Materials Physics, Helmholtz Zentrum Hereon, Geesthacht, Germany
| | - Olga Will
- Molecular Imaging North Competence Center, Kiel University, Kiel, Germany
| | - Susanne Beuer
- Fraunhofer Institut für Integrierte Systeme und Bauelementetechnologie (IISB), Erlangen, Germany
| | - D.C Florian Wieland
- Institute of Metallic Biomaterials, Helmholtz Zentrum Hereon, Geesthacht, Germany
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3
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Sobierajska P, Wiatrak B, Jawien P, Janeczek M, Wiglusz K, Szeląg A, Wiglusz RJ. Imatinib-Functionalized Galactose Hydrogels Loaded with Nanohydroxyapatite as a Drug Delivery System for Osteosarcoma: In Vitro Studies. ACS OMEGA 2023; 8:17891-17900. [PMID: 37251195 PMCID: PMC10210190 DOI: 10.1021/acsomega.3c00986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/26/2023] [Indexed: 05/31/2023]
Abstract
This study reports an impact of structure (XRPD, FT-IR) and surface morphology (SEM-EDS) of imatinib-functionalized galactose hydrogels, loaded and unloaded with nHAp, on osteosarcoma cell (Saos-2 and U-2OS) viability, levels of free oxygen radicals, and nitric oxide, levels of BCL-2, p53, and caspase 3 and 9, as well as glycoprotein-P activity. It was investigated how the rough surface of the crystalline hydroxyapatite-modified hydrogel affected amorphous imatinib (IM) release. The imatinib drug effect on cell cultures has been demonstrated in different forms of administration-directly to the culture or the hydrogels. Administration of IM and hydrogel composites could be expected to reduce the risk of multidrug resistance development by inhibiting Pgp.
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Affiliation(s)
- Paulina Sobierajska
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw 50-422, Poland
| | - Benita Wiatrak
- Department
of Pharmacology, Wroclaw Medical University, Mikulicza-Radeckiego 2, Wroclaw 50-345, Poland
| | - Paulina Jawien
- Department
of Biostructure and Animal Physiology, Wroclaw
University of Environmental and Life Sciences, Norwida 25/27, 50-375 Wroclaw, Poland
| | - Maciej Janeczek
- Department
of Biostructure and Animal Physiology, Wroclaw
University of Environmental and Life Sciences, Norwida 25/27, 50-375 Wroclaw, Poland
| | - Katarzyna Wiglusz
- Department
of Basic Chemical Sciences, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211 A, 50-566 Wroclaw, Poland
| | - Adam Szeląg
- Department
of Pharmacology, Wroclaw Medical University, Mikulicza-Radeckiego 2, Wroclaw 50-345, Poland
| | - Rafal J. Wiglusz
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw 50-422, Poland
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4
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Carvalho Â, Guimarães-Teixeira C, Constâncio V, Fernandes M, Macedo-Silva C, Henrique R, Monteiro FJ, Jerónimo C. One sample fits all: a microfluidic-assisted methodology for label-free isolation of CTCs with downstream methylation analysis of cfDNA in lung cancer. Biomater Sci 2022; 10:3296-3308. [PMID: 35583893 DOI: 10.1039/d2bm00044j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lung cancer (LC) is a major cause of mortality. Late diagnosis, associated with limitations in tissue biopsies for adequate tumor characterization contribute to limited survival of lung cancer patients. Liquid biopsies have been introduced to improve tumor characetrization through the analysis of biomarkers, including circulating tumour cells (CTCs) and cell-free DNA (cfDNA). Considering their availability in blood, several enrichment strategies have been developed to augment circulating biomarkers for improving diagnostic, prognostic and treament efficacy assessment; often, however, only one biomarker is tested. In this work we developed and implemented a microfluidic chip for label-free enrichment of CTCs with a methodology for subsequent cfDNA analysis from the same cryopreserved sample. CTCs were successfully isolated in 38 of 42 LC patients with the microfluidic chip. CTCs frequency was significantly higher in LC patients with advanced disease. A cut-off of 1 CTC per mL was established for diagnosis (sensitivity = 76.19%, specificity = 100%) and in patients with late stage lung cancer, the presence of ≥5 CTCs per mL was significantly associated with shorter overall survival. MIR129-2me and ADCY4me panel of cfDNA methylation performed well for LC detection, whereas MIR129-2me combined with HOXA11me allowed for patient risk stratification. Analysis of combinations of biomarkers enabled the definition of panels for LC diagnosis and prognosis. Overall, this study demonstrates that multimodal analysis of tumour biomarkers via microfluidic devices may significantly improve LC characterization in cryopreserved samples, constituting a reliable source for continuous disease monitoring.
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Affiliation(s)
- Ângela Carvalho
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal. .,INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Catarina Guimarães-Teixeira
- Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Cancer Biology and Epigenetics Group, IPO Porto Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Vera Constâncio
- Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Cancer Biology and Epigenetics Group, IPO Porto Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Mariana Fernandes
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal. .,INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Catarina Macedo-Silva
- Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Cancer Biology and Epigenetics Group, IPO Porto Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Rui Henrique
- Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Cancer Biology and Epigenetics Group, IPO Porto Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Department of Pathology, Portuguese Oncology Institute of Porto (IPO Porto), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
| | - Fernando Jorge Monteiro
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal. .,INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Faculdade de Engenharia, Departamento de Engenharia Metalúrgica e Materiais, Universidade do Porto, Rua Dr Roberto Frias, s/n, 4200-465 Porto, Portugal
| | - Carmen Jerónimo
- Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Cancer Biology and Epigenetics Group, IPO Porto Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.,Department of Pathology and Molecular Immunology, School of Medicine and Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
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5
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Millán-Ramos B, Morquecho-Marín D, Silva-Bermudez P, Ramírez-Ortega D, Depablos-Rivera O, García-López J, Fernández-Lizárraga M, Almaguer-Flores A, Victoria-Hernández J, Letzig D, Rodil SE. Degradation Behavior and Mechanical Integrity of a Mg-0.7Zn-0.6Ca (wt.%) Alloy: Effect of Grain Sizes and Crystallographic Texture. MATERIALS 2022; 15:ma15093142. [PMID: 35591473 PMCID: PMC9102660 DOI: 10.3390/ma15093142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/08/2022] [Accepted: 04/22/2022] [Indexed: 02/01/2023]
Abstract
The microstructural characteristics of biodegradable Mg alloys determine their performance and appropriateness for orthopedic fixation applications. In this work, the effect of the annealing treatment of a Mg-0.7Zn-0.6Ca (ZX11) alloy on the mechanical integrity, corrosive behavior, and biocompatibility-osteoinduction was studied considering two annealing temperatures, 350 and 450 °C. The microstructure showed a recrystallized structure, with a lower number of precipitates, grain size, and stronger basal texture for the ZX11-350 condition than the ZX11-450. The characteristics mentioned above induce a higher long-term degradation rate for the ZX11-450 than the ZX11-350 on days 7th and 15th of immersion. In consequence, the mechanical integrity changes within this period. The increased degradation rate of the ZX11-450 condition reduces 40% the elongation at failure, in contrast with the 16% reduction for the ZX11-350 condition. After that period, the mechanical integrity remained unchanged. No cytotoxic effects were observed for both treatments and significant differentiation of mesenchymal stem cells into the osteoblast phenotype was observed.
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Affiliation(s)
- Benjamin Millán-Ramos
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (D.R.-O.); (O.D.-R.); (S.E.R.)
- Posgrado en Ciencia e Ingeniería de Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
- Correspondence: (B.M.-R.); (J.V.-H.)
| | - Daniela Morquecho-Marín
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico; (D.M.-M.); (P.S.-B.); (J.G.-L.); (M.F.-L.)
- Posgrado en Ciencias Médicas, Odontológicas y de la Salud, Ciencias Odontológicas, Universidad Nacional Autónoma de México, Mexico City 14389, Mexico
| | - Phaedra Silva-Bermudez
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico; (D.M.-M.); (P.S.-B.); (J.G.-L.); (M.F.-L.)
| | - David Ramírez-Ortega
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (D.R.-O.); (O.D.-R.); (S.E.R.)
| | - Osmary Depablos-Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (D.R.-O.); (O.D.-R.); (S.E.R.)
- Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Julieta García-López
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico; (D.M.-M.); (P.S.-B.); (J.G.-L.); (M.F.-L.)
| | - Mariana Fernández-Lizárraga
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico; (D.M.-M.); (P.S.-B.); (J.G.-L.); (M.F.-L.)
- Posgrado de Doctorado en Ciencias en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Argelia Almaguer-Flores
- Laboratorio de Biointerfaces, Facultad de Odontología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - José Victoria-Hernández
- Institute of Material and Process Design, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany;
- Correspondence: (B.M.-R.); (J.V.-H.)
| | - Dietmar Letzig
- Institute of Material and Process Design, Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany;
| | - Sandra E. Rodil
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (D.R.-O.); (O.D.-R.); (S.E.R.)
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6
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Anti-Osteoporosis Effect of Perilla frutescens Leaf Hexane Fraction through Regulating Osteoclast and Osteoblast Differentiation. Molecules 2022; 27:molecules27030824. [PMID: 35164085 PMCID: PMC8840259 DOI: 10.3390/molecules27030824] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 11/24/2022] Open
Abstract
Osteoporosis is the result of an imbalance in the bone-remodeling process via an increase in osteoclastic activity and a decrease in osteoblastic activity. Our previous studies have shown that Perilla frutescens seed meal has anti-osteoclastogenic activity. However, the role of perilla leaf hexane fraction (PLH) in osteoporosis has not yet been investigated and reported. In this study, we aimed to investigate the effects of PLH in osteoclast differentiation and osteogenic potential using cell-based experiments in vitro. From HPLC analysis, we found that PLH contained high luteolin and baicalein. PLH was shown to inhibit RANKL-induced ROS production and tartrate-resistant acid phosphatase (TRAP)-positive multi-nucleated osteoclasts. Moreover, PLH significantly downregulated the RANKL-induced MAPK and NF-κB signaling pathways, leading to the attenuation of NFATc1 and MMP-9 expression. In contrast, PLH enhanced osteoblast function by regulating alkaline phosphatase (ALP) and restoring TNF-α-suppressed osteoblast proliferation and osteogenic potential. Thus, luteolin and baicalein-rich PLH inhibits osteoclast differentiation but promotes the function of osteoblasts. Collectively, our data provide new evidence that suggests that PLH may be a valuable anti-osteoporosis agent.
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7
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Guo B, Zhu X, Li X, Yuan CF. The Roles of LncRNAs in Osteogenesis, Adipogenesis and Osteoporosis. Curr Pharm Des 2021; 27:91-104. [PMID: 32634074 DOI: 10.2174/1381612826666200707130246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/28/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Osteoporosis (OP) is the most common bone disease, which is listed by the World Health Organization (WHO) as the third major threat to life and health among the elderly. The etiology of OP is multifactorial, and its potential regulatory mechanism remains unclear. Long non-coding RNAs (LncRNAs) are the non-coding RNAs that are over 200 bases in the chain length. Increasing evidence indicates that LncRNAs are the important regulators of osteogenic and adipogenic differentiation, and the occurrence of OP is greatly related to the dysregulation of the bone marrow mesenchymal stem cells (BMSCs) differentiation lineage. Meanwhile, LncRNAs affect the occurrence and development of OP by regulating OP-related biological processes. METHODS In the review, we summarized and analyzed the latest findings of LncRNAs in the pathogenesis, diagnosis and related biological processes of OP. Relevant studies published in the last five years were retrieved and selected from the PubMed database using the keywords of LncRNA and OP. RESULTS/CONCLUSION The present study aimed to examine the underlying mechanisms and biological roles of LncRNAs in OP, as well as osteogenic and adipogenic differentiation. Our results contributed to providing new clues for the epigenetic regulation of OP, making LncRNAs the new targets for OP therapy.
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Affiliation(s)
- Bo Guo
- China Three Gorges University, RenHe Hospital, Yichang, China
| | - Xiaokang Zhu
- China Three Gorges University, RenHe Hospital, Yichang, China
| | - Xinzhi Li
- China Three Gorges University, RenHe Hospital, Yichang, China
| | - C F Yuan
- Department of Biochemistry, China Three Gorges University, Yichang, China
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8
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Wang Q, Xu L, Helmholz H, Willumeit-Römer R, Luthringer-Feyerabend BJC. Effects of degradable magnesium on paracrine signaling between human umbilical cord perivascular cells and peripheral blood mononuclear cells. Biomater Sci 2020; 8:5969-5983. [PMID: 32975550 DOI: 10.1039/d0bm00834f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Human mesenchymal stem cells (MSC) interact with numerous immune cells that can promote regenerative processes and inhibit inflammatory responses. We hypothesised that the cross-talk between human umbilical cord perivascular cells (HUCPV; an alternative source of MSC) and peripheral blood mononuclear cells (PBMC) could be influenced by degradable transwell magnesium (Mg). To study the correlations between paracrine signaling and specific cellular behaviour during the host response to Mg, we used a transwell coculture system for up to 7 days. The proliferation and viability of both cell types were not significantly influenced by Mg. When HUCPV were cultured with degradable Mg, a moderate inflammation (e.g., lower secretions of pro-inflammatory interleukin 1 beta and IL2, and tumour necrosis factor alpha, interferon gamma, anti-inflammatory interleukins 4, 5, 10, 13, and 1 receptor antagonists and granulocyte colony stimulating factor), and an increased pro-healing M2 macrophage phenotype were observed. Moreover, when PBMC were cultured with degradable Mg, the expression of migration/wound healing related cytokines (interleukin 8, granulocyte-macrophage colony-stimulating factor, monocyte chemoattractant protein 1 and macrophage inflammatory protein 1α/β) was upregulated, accompanied by an increase in the migration ability of HUCPV (cell scratch assay). In addition, an increased pro-osteogenic potential was demonstrated via an increase of osteoblastic markers (e.g., alkaline phosphatase activity, specific gene expression and cytokine release). These results collectively imply that Mg possesses osteo-immunomodulatory properties. They also help to design Mg-based bone substitute biomaterials capable of exhibiting desired immune reactions and good clinical performance.
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Affiliation(s)
- Qian Wang
- Institute of Materials Research, Division for Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), Geesthacht, Germany.
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9
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Zhao W, Wang G, Zhou C, Zhao Q. The regulatory roles of long noncoding RNAs in osteoporosis. Am J Transl Res 2020; 12:5882-5907. [PMID: 33042467 PMCID: PMC7540091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 08/01/2020] [Indexed: 06/11/2023]
Abstract
Osteoporosis is a common metabolic bone disease characterized by low bone mineral density (BMD) and microarchitectural deterioration of bone tissue, which leads to decreased bone strength and increased fracture risk. Osteoporosis mainly results from a disruption of the balance between bone formation mediated by osteoblasts and bone resorption mediated by osteoclasts. At present, the molecular mechanisms underlying osteoporosis are still not fully understood. Long noncoding RNAs (lncRNAs) are RNA molecules that exceed 200 nucleotides (nt) in length and have limited or no protein-coding capacity. Over the past decade, numerous lncRNAs have been demonstrated to participate in multiple biological processes and to play essential roles in the pathogenesis of various diseases. In this review, we summarize recent progress in research on lncRNAs in osteoporosis and mainly focus on their regulatory roles in osteogenesis and osteoclastogenesis. Moreover, we briefly discuss the potential clinical applications of lncRNAs in osteoporosis.
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Affiliation(s)
- Weisong Zhao
- Department of Orthopaedics, Shanghai Bone Tumor Institute, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai 200080, China
- First Clinical College, Xinxiang Medical UniversityXinxiang 453000, Henan, China
| | - Gangyang Wang
- Department of Orthopaedics, Shanghai Bone Tumor Institute, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai 200080, China
| | - Chenghao Zhou
- Department of Orthopaedics, Shanghai Bone Tumor Institute, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai 200080, China
| | - Qinghua Zhao
- Department of Orthopaedics, Shanghai Bone Tumor Institute, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai 200080, China
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10
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Wang Y, Bian Y, Zhou L, Feng B, Weng X, Liang R. Biological evaluation of bone substitute. Clin Chim Acta 2020; 510:544-555. [PMID: 32798511 DOI: 10.1016/j.cca.2020.08.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/09/2020] [Accepted: 08/10/2020] [Indexed: 01/02/2023]
Abstract
Critical-sized defects (CSDs) caused by trauma, tumor resection, or skeletal abnormalities create a high demand for bone repair materials (BRMs). Over the years, scientists have been trying to develop BRMs and evaluate their efficacy using numerous developed methods. BRMs are characterized by osteogenesis and angiogenesis promoting properties, the latter of which has rarely been studied in vitro and in vivo. While blood vessels are required to provide nutrients. Bone mass maintains a dynamic balance under the joint action of osteolytic and osteogenic activity in which monocytes differentiate into osteolytic cells, and osteoprogenitor cells differentiate into osteogenic cells. This review would be helpful for inexperienced researchers as well as present a comprehensive overview of methods used to investigate the effect of BRMs on osteogenic cells, osteolytic cells, and blood vessels, as well as their biocompatibility and biological performance. This review is expected to facilitate further research and development of new BRMs.
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Affiliation(s)
- Yingjie Wang
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yanyan Bian
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Lizhi Zhou
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Bin Feng
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Xisheng Weng
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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11
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Globig P, Willumeit-Römer R, Martini F, Mazzoni E, Luthringer-Feyerabend BJ. Optimizing an Osteosarcoma-Fibroblast Coculture Model to Study Antitumoral Activity of Magnesium-Based Biomaterials. Int J Mol Sci 2020; 21:E5099. [PMID: 32707715 PMCID: PMC7404313 DOI: 10.3390/ijms21145099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/14/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma is among the most common cancers in young patients and is responsible for one-tenth of all cancer-related deaths in children. Surgery often leads to bone defects in excised tissue, while residual cancer cells may remain. Degradable magnesium alloys get increasing attention as orthopedic implants, and some studies have reported potential antitumor activity. However, most of the studies do not take the complex interaction between malignant cells and their surrounding stroma into account. Here, we applied a coculture model consisting of green fluorescent osteosarcoma cells and red fluorescent fibroblasts on extruded Mg and Mg-6Ag with a tailored degradation rate. In contrast to non-degrading Ti-based material, both Mg-based materials reduced relative tumor cell numbers. Comparing the influence of the material on a sparse and dense coculture, relative cell numbers were found to be statistically different, thus relevant, while magnesium alloy degradations were observed as cell density-independent. We concluded that the sparse coculture model is a suitable mechanistic system to further study the antitumor effects of Mg-based material.
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Affiliation(s)
- Philipp Globig
- Institute of Materials Research, Division for Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany; (P.G.); (R.W.-R.)
| | - Regine Willumeit-Römer
- Institute of Materials Research, Division for Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany; (P.G.); (R.W.-R.)
| | - Fernanda Martini
- Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy; (F.M.); (E.M.)
| | - Elisa Mazzoni
- Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy; (F.M.); (E.M.)
| | - Bérengère J.C. Luthringer-Feyerabend
- Institute of Materials Research, Division for Metallic Biomaterials, Helmholtz-Zentrum Geesthacht (HZG), 21502 Geesthacht, Germany; (P.G.); (R.W.-R.)
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12
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Lee HM, Seo SR, Kim J, Kim MK, Seo H, Kim KS, Jang YJ, Ryu CJ. Expression dynamics of integrin α2, α3, and αV upon osteogenic differentiation of human mesenchymal stem cells. Stem Cell Res Ther 2020; 11:210. [PMID: 32493499 PMCID: PMC7268774 DOI: 10.1186/s13287-020-01714-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/06/2020] [Accepted: 05/07/2020] [Indexed: 02/06/2023] Open
Abstract
Background The differentiation of human mesenchymal stem cells (hMSCs) into osteoblasts (OBs) is a prerequisite for bone formation. However, little is known about the definitive surface markers for OBs during osteogenesis. Methods To study the surface markers on OBs, we generated and used monoclonal antibodies (MAbs) against surface molecules on transforming growth factor-β1 (TGF-β1)-treated cancer cells. The generated MAbs were further selected toward expression changes on hMSCs cultured with TGF-β1/bone morphogenetic protein-2 (BMP-2) or osteogenic differentiation medium (ODM) by flow cytometry. Immunoprecipitation and mass spectrometry were performed to identify target antigens of selected MAbs. Expression changes of the target antigens were evaluated in hMSCs, human periodontal ligament cells (hPDLCs), and human dental pulp cells (hDPCs) during osteogenic and adipogenic differentiation by quantitative polymerase chain reaction (qPCR) and flow cytometry. hMSCs were also sorted by the MAbs using magnetic-activated cell sorting system, and osteogenic potential of sorted cells was evaluated via Alizarin Red S (ARS) staining and qPCR. Results The binding reactivity of MR14-E5, one of the MAbs, was downregulated in hMSCs with ODM while the binding reactivity of ER7-A7, ER7-A8, and MR1-B1 MAbs was upregulated. Mass spectrometry and overexpression identified that MR14-E5, ER7-A7/ER7-A8, and MR1-B1 recognized integrin α2, α3, and αV, respectively. Upon osteogenic differentiation of hMSCs, the expression of integrin α2 was drastically downregulated, but the expression of integrin α3 and αV was upregulated in accordance with upregulation of osteogenic markers. Expression of integrin α3 and αV was also upregulated in hPDLCs and hDPCs during osteogenic differentiation. Cell sorting showed that integrin αV-high hMSCs have a greater osteogenic potential than integrin αV-low hMSCs upon the osteogenic differentiation of hMSCs. Cell sorting further revealed that the surface expression of integrin αV is more dramatically induced even in integrin αV-low hMSCs. Conclusion These findings suggest that integrin α3 and αV induction is a good indicator of OB differentiation. These findings also shed insight into the expression dynamics of integrins upon osteogenic differentiation of hMSCs and provide the reason why different integrin ligands are required for OB differentiation of hMSCs.
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Affiliation(s)
- Hyun Min Lee
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Korea
| | - Se-Ri Seo
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Korea
| | - Jeeseung Kim
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Korea
| | - Min Kyu Kim
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Korea
| | - Hyosun Seo
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Korea
| | - Kyoung Soo Kim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul, 02447, Korea
| | - Young-Joo Jang
- Department of Nanobiomedical Science, BK21 PLUS NBM Global Research Center for Regenerative Medicine, College of Dentistry, Dankook University, Cheonan, 330-714, Korea.
| | - Chun Jeih Ryu
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Korea.
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13
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Wang Z, Liu Q, Liu C, Tan W, Tang M, Zhou X, Sun T, Deng Y. Mg 2+ in β-TCP/Mg-Zn composite enhances the differentiation of human bone marrow stromal cells into osteoblasts through MAPK-regulated Runx2/Osx. J Cell Physiol 2020; 235:5182-5191. [PMID: 31742679 DOI: 10.1002/jcp.29395] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 09/27/2019] [Indexed: 12/15/2022]
Abstract
Inducing the osteogenic differentiation from bone marrow stromal cells (BMSCs) might be a potent strategy for treating bone loss and nonunion during fracture and improving fracture healing. Among several signaling pathways involved, mitogen-activated protein kinases (MAPKs) have been reported to play a critical role. Magnesium (Mg)-based alloys, including Mg-Zn alloy, have been used clinically as implants in the musculoskeletal field and could promote BMSC osteogenic differentiation. However, the underlying mechanisms remain unclear. In this study, we produced Mg-Zn alloy consists of Mg and low concentrations of Zn, calcium carbonate, and β-tricalcium phosphate (β-TCP; manifesting process not shown), prepared Mg, Zn, and Mg-Zn extracts, and investigated the specific effects of these extracts on human BMSC (hBMSC) osteogenic differentiation and MAPK signaling. Mg extracts and Mg-Zn extracts could significantly promote the osteogenic differentiation of hBMSCs as manifested as increased alkaline phosphatase levels, enhanced calcium nodules formation, and increased messenger RNA expression and protein levels of osteogenesis markers, including BMPs, Col-I, Runx2, and Osx; in the meantime, Mg culture medium (CM) and Mg-Zn CM both significantly enhanced the activation of MAPK signaling in hBMSCs. By adding ERK1/2 signaling, p38 signaling, or JNK signaling inhibitor to Mg-Zn CM, or conducting p38 MAPK silence in hBMSCs, we revealed that these extracts might promote hBMSC osteogenic differentiation via p38 MAPK signaling and MAPK-regulated Runx2/Osx. In conclusion, Mg2+ in β-TCP/Mg-Zn extract promotes the osteogenic differentiation of hBMSCs via MAPK-regulated Runx2/Osx interaction.
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Affiliation(s)
- Zhenting Wang
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Urology Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, China
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Qing Liu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Congcong Liu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Wei Tan
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan
| | - Mingying Tang
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaohua Zhou
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tianshi Sun
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Youwen Deng
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan
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14
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Response of Saos-2 osteoblast-like cells to kilohertz-resonance excitation in porous metallic scaffolds. J Mech Behav Biomed Mater 2020; 106:103726. [DOI: 10.1016/j.jmbbm.2020.103726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/10/2020] [Accepted: 03/10/2020] [Indexed: 12/13/2022]
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15
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Hennen D, Hartmann D, Rieger PH, Oesterreicher A, Wiener J, Arbeiter F, Feuchter M, Fröhlich E, Pichelmayer M, Schlögl S, Griesser T. Exploiting the Carbon and Oxa Michael Addition Reaction for the Synthesis of Yne Monomers: Towards the Conversion of Acrylates to Biocompatible Building Blocks. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.201900199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel Hennen
- Institute of Chemistry of Polymeric Materials andChristian Doppler Laboratory for Functional and Polymer Based Ink-Jet InksMontanuniversität Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Delara Hartmann
- Institute of Chemistry of Polymeric Materials andChristian Doppler Laboratory for Functional and Polymer Based Ink-Jet InksMontanuniversität Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Paul H. Rieger
- Institute of Chemistry of Polymeric Materials andChristian Doppler Laboratory for Functional and Polymer Based Ink-Jet InksMontanuniversität Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Andreas Oesterreicher
- Institute of Chemistry of Polymeric Materials andChristian Doppler Laboratory for Functional and Polymer Based Ink-Jet InksMontanuniversität Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Johannes Wiener
- Institute of Chemistry of Polymeric Materials andChristian Doppler Laboratory for Functional and Polymer Based Ink-Jet InksMontanuniversität Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
- Institute of Materials Science and Testing of PolymersUniversity of Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Florian Arbeiter
- Institute of Materials Science and Testing of PolymersUniversity of Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Michael Feuchter
- Institute of Materials Science and Testing of PolymersUniversity of Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
| | - Eleonore Fröhlich
- ZMF – Center for Medical Research Stiftingtalstrasse 24 8010 Graz Austria
| | - Margit Pichelmayer
- Division of Oral Surgery and OrthodonticsDepartment of Dental Medicine and Oral HealthMedical University Graz Billrothgasse 4 8010 Graz Austria
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH Roseggerstrasse 12 8700 Leoben Austria
| | - Thomas Griesser
- Institute of Chemistry of Polymeric Materials andChristian Doppler Laboratory for Functional and Polymer Based Ink-Jet InksMontanuniversität Leoben Otto-Glöckel-Strasse 2 8700 Leoben Austria
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16
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Ehlert M, Roszek K, Jędrzejewski T, Bartmański M, Radtke A. Titania Nanofiber Scaffolds with Enhanced Biointegration Activity-Preliminary In Vitro Studies. Int J Mol Sci 2019; 20:E5642. [PMID: 31718064 PMCID: PMC6888681 DOI: 10.3390/ijms20225642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/07/2019] [Accepted: 11/09/2019] [Indexed: 12/11/2022] Open
Abstract
The increasing need for novel bone replacement materials has been driving numerous studies on modifying their surface to stimulate osteogenic cells expansion and to accelerate bone tissue regeneration. The goal of the presented study was to optimize the production of titania-based bioactive materials with high porosity and defined nanostructure, which supports the cell viability and growth. We have chosen to our experiments TiO2 nanofibers, produced by chemical oxidation of Ti6Al4V alloy. Fibrous nanocoatings were characterized structurally (X-ray diffraction (XRD)) and morphologically (scanning electron microscopy (SEM)). The wettability of the coatings and their mechanical properties were also evaluated. We have investigated the direct influence of the modified titanium alloy surfaces on the survival and proliferation of mesenchymal stem cells derived from adipose tissue (ADSCs). In parallel, proliferation of bone tissue cells-human osteoblasts MG-63 and connective tissue cells - mouse fibroblasts L929, as well as cell viability in co-cultures (osteoblasts/ADSCs and fibroblasts/ADSCs has been studied. The results of our experiments proved that among all tested nanofibrous coatings, the amorphous titania-based ones were the most optimal scaffolds for the integration and proliferation of ADSCs, fibroblasts, and osteoblasts. Thus, we postulated these scaffolds to have the osteopromotional potential. However, from the co-culture experiments it can be concluded that ADSCs have the ability to functionalize the initially unfavorable surface, and make it suitable for more specialized and demanding cells.
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Affiliation(s)
- Michalina Ehlert
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland;
- Nano-Implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland
| | - Katarzyna Roszek
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (K.R.); (T.J.)
| | - Tomasz Jędrzejewski
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (K.R.); (T.J.)
| | - Michał Bartmański
- Faculty of Mechanical Engineering, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland;
| | - Aleksandra Radtke
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland;
- Nano-Implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland
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17
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Effect of magnesium-degradation products and hypoxia on the angiogenesis of human umbilical vein endothelial cells. Acta Biomater 2019; 98:269-283. [PMID: 30794987 DOI: 10.1016/j.actbio.2019.02.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 01/06/2023]
Abstract
Biodegradable magnesium (Mg) metals have been applied in orthopaedic and stent applications due to their biodegradability, bioabsorbability and adaptability to tissue regeneration. However, further investigations are still needed to understand how angiogenesis will respond to high concentrations of Mg and oxygen content differences, which are vital to vascular remodelling and bone fracture regeneration or tissue healing. Human primary endothelial cells were exposed to various concentrations (2-8 mM) of extracellular Mg degradation products under either hypoxia or normoxia. Increased proliferation was measured with Mg extracts under hypoxia but not under normoxia. Under normoxia and with Mg extracts, HUVEC migration exhibited a bell-shaped curve. The same pattern was observed with VEGFB expression, while VEGFA was constantly downregulated. Under hypoxia, migration and VEGFA levels remained constant; however, VEGFB was upregulated. Similarly, under normoxia, tube formation as well as VEGFA and VEGFB levels were downregulated. Nevertheless, under hypoxia, tube formation remained constant while VEGFA and VEGFB levels were upregulated. These results suggest that Mg extracts did not interfere with angiogenesis under hypoxia. STATEMENT OF SIGNIFICANCE: Neoangiogenesis, mediated by (e.g.) hypoxia, is a key factor for proper tissue healing Thus, effect of Mg degradation products under either hypoxia or normoxia on angiogenesis were investigated. Under normoxia and increased Mg concentrations, a general negative effect was measured on early (migration) and late (tubulogenesis) angiogenesis. However, under hypoxia, this effect was abolished. As magnesium degradation is an oxygen-dependant process, hypoxia condition may be a relevant factor to test material cytocompatibility in vitro.
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18
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Hou R, Victoria-Hernandez J, Jiang P, Willumeit-Römer R, Luthringer-Feyerabend B, Yi S, Letzig D, Feyerabend F. In vitro evaluation of the ZX11 magnesium alloy as potential bone plate: Degradability and mechanical integrity. Acta Biomater 2019; 97:608-622. [PMID: 31365881 DOI: 10.1016/j.actbio.2019.07.053] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/05/2019] [Accepted: 07/26/2019] [Indexed: 02/08/2023]
Abstract
Considering the excellent biocompatibility of magnesium (Mg) alloys and their better mechanical properties compared to polymer materials, a wrought MgZnCa alloy with low contents of Zn (0.7 wt%) and Ca (0.6 wt%) (ZX11) was developed by twin roll casting (TRC) technology as potential biodegradable bone plates. The degradability and cell response of the ZX11 alloy were evaluated in vitro, as well as the mechanical integrity according to tensile tests after immersion. The results revealed a slightly higher degradation rate for the rolled ZX11, in comparison to that of the annealed one. It was mainly caused by the deformation twins and residual strain stored in the rolled alloy, which also seemed to promote localized degradation, thereby leading to a relatively fast deterioration in mechanical properties, especially the fracture strain/elongation. In contrast, after the annealing treatment, the alloy showed relatively lower strength, yet a lower degradation rate and quite stable elongation during the initial weeks of immersion were observed. More importantly, the ZX11 alloy, regardless of the annealing treatment, showed good in vitro cytocomopatibility regarding human primary osteoblasts. The assessment indicates the rolled alloy as a good choice for implantation sites where relatively high mechanical strength is needed during the early implantation, while the annealed alloy is a potential candidate for the sites which demand stable mechanical integrity during service. STATEMENT OF SIGNIFICANCE: The development of magnesium alloys as bone implants demands low degradation rate to gain not only a slow hydrogen evolution, but also a stable mechanical integrity during service. The present study develops a micro-alloyed MgZnCa alloy via twin roll casting (TRC) technology. It exhibited limited cytotoxicity, fairly low degradation rate and comparable strength to the reported Mg-1Zn-5Ca alloy which has been used as bone screws in clinical trials, indicating the great potential application as biodegradable bone implants. Furthermore, it showed good mechanical integrity during immersion to support the defect healing. Our results can aid other researchers to evaluate the mechanical integrity of biodegradable materials and to pay more attention to the effect of degradation behaviour on mechanical integrity of materials.
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19
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Mg–Zn–Mn alloy extract induces the angiogenesis of human umbilical vein endothelial cells via FGF/FGFR signaling pathway. Biochem Biophys Res Commun 2019; 514:618-624. [DOI: 10.1016/j.bbrc.2019.04.198] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 04/29/2019] [Indexed: 11/21/2022]
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20
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Li D, Yu K, Xiao T, Dai Y, Liu L, Li H, Jiang D, Xiong L. LOC103691336/miR-138-5p/BMPR2 axis modulates Mg-mediated osteogenic differentiation in rat femoral fracture model and rat primary bone marrow stromal cells. J Cell Physiol 2019; 234:21316-21330. [PMID: 31081160 DOI: 10.1002/jcp.28736] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/27/2019] [Accepted: 04/10/2019] [Indexed: 12/26/2022]
Abstract
Intramedullary stabilization is frequently used to treat long bone fractures. Since implant removal can become technically very challenging with the potential to cause further tissue damage, biodegradable materials are emerging as alternative options. Magnesium (Mg)-based biodegradable implants have a controllable degradation rate and good tissue compatibility, which makes them attractive for musculoskeletal research. Herein, the degradation of Mg and steel implants, the pathological characteristics and osteoblast differentiation in mice femora were examined. To investigate the molecular mechanism, we analyzed the differentially expressed long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs) in Mg-implanted or stain-steel-implanted callus tissues. lncRNA LOC103691336 was upregulated in Mg-implanted tissues and most relevant to BMPR2, a kinase receptor of BMPs with an established role in osteogenesis. The knockdown of LOC103691336 attenuated Mg-mediated osteogenic differentiation. Furthermore, miR-138-5p, previously reported to inhibit osteogenic differentiation, could bind to LOC103691336 and BMPR2 in bone marrow stromal cells (BMSCs). LOC103691336 competed with BMPR2 for miR-138-5p binding in BMSCs to attenuate the inhibitory effect of miR-138-5p on BMPR2 expression. Finally, the effect of LOC103691336 knockdown on Mg-mediated osteogenic differentiation could be attenuated by miR-138-5p inhibition. In conclusion, we provided a novel mechanism of Mg implants mediating the osteogenesis differentiation and demonstrated that Mg implants may be promising for improving fracture healing.
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Affiliation(s)
- Ding Li
- School of Materials Science and Engineering, Central South University, Changsha, China.,Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Kun Yu
- School of Materials Science and Engineering, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Tao Xiao
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Yilong Dai
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Lihong Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Hui Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Dayue Jiang
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Liang Xiong
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
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21
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Radtke A, Grodzicka M, Ehlert M, Jędrzejewski T, Wypij M, Golińska P. "To Be Microbiocidal and Not to Be Cytotoxic at the Same Time…"-Silver Nanoparticles and Their Main Role on the Surface of Titanium Alloy Implants. J Clin Med 2019; 8:jcm8030334. [PMID: 30857367 PMCID: PMC6463051 DOI: 10.3390/jcm8030334] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 02/28/2019] [Accepted: 03/04/2019] [Indexed: 12/28/2022] Open
Abstract
The chemical vapor deposition (CVD) method has been used to produce dispersed silver nanoparticles (AgNPs) on the surface of titanium alloy (Ti6Al4V) and nanotubular modified titanium alloys (Ti6Al4V/TNT5), leading to the formation of Ti6Al4V/AgNPs and Ti6Al4V/TNT5/AgNPs systems with different contents of metallic silver particles. Their surface morphology and silver particles arrangement were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS), and atomic force microscopy (AFM). The wettability and surface free energy of these materials were investigated on the basis of contact angle measurements. The degree of silver ion release from the surface of the studied systems immersed in phosphate buffered saline solution (PBS) was estimated using inductively coupled plasma ionization mass spectrometry (ICP-MS). The biocompatibility of the analyzed materials was estimated based on the fibroblasts and osteoblasts adhesion and proliferation, while their microbiocidal properties were determined against Gram-positive and Gram-negative bacteria, and yeasts. The results of our works proved the high antimicrobial activity and biocompatibility of all the studied systems. Among them, Ti6Al4V/TNT5/0.6AgNPs contained the lowest amount of AgNPs, but still revealed optimal biointegration properties and high biocidal properties. This is the biomaterial that possesses the desired biological properties, in which the potential toxicity is minimized by minimizing the number of silver nanoparticles.
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Affiliation(s)
- Aleksandra Radtke
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
- Nano-implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland.
| | - Marlena Grodzicka
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
- Nano-implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland.
| | - Michalina Ehlert
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
- Nano-implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland.
| | - Tomasz Jędrzejewski
- Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland.
| | - Magdalena Wypij
- Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland.
| | - Patrycja Golińska
- Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland.
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22
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Magnesium Is a Key Regulator of the Balance between Osteoclast and Osteoblast Differentiation in the Presence of Vitamin D₃. Int J Mol Sci 2019; 20:ijms20020385. [PMID: 30658432 PMCID: PMC6358963 DOI: 10.3390/ijms20020385] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/21/2018] [Accepted: 01/12/2019] [Indexed: 01/28/2023] Open
Abstract
Magnesium (Mg) is crucial for bone health. Low concentrations of Mg inhibit the activity of osteoblasts while promoting that of osteoclasts, with the final result of inducing osteopenia. Conversely, little is known about the effects of high concentrations of extracellular Mg on osteoclasts and osteoblasts. Since the differentiation and activation of these cells is coordinated by vitamin D₃ (VD3), we investigated the effects of high extracellular Mg, as well as its impact on VD3 activity, in these cells. U937 cells were induced to osteoclastic differentiation by VD3 in the presence of supra-physiological concentrations (>1 mM) of extracellular Mg. The effect of high Mg concentrations was also studied in human bone-marrow-derived mesenchymal stem cells (bMSCs) induced to differentiate into osteoblasts by VD3. We demonstrate that high extra-cellular Mg levels potentiate VD3-induced osteoclastic differentiation, while decreasing osteoblastogenesis. We hypothesize that Mg might reprogram VD3 activity on bone remodeling, causing an unbalanced activation of osteoclasts and osteoblasts.
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Design of a migration assay for human gingival fibroblasts on biodegradable magnesium surfaces. Acta Biomater 2018; 79:158-167. [PMID: 30172066 DOI: 10.1016/j.actbio.2018.08.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 02/08/2023]
Abstract
A novel regenerative approach to Guided Bone Regeneration (GBR) in dental surgery is based on the development of biodegradable and volume stable barrier membranes made of metallic magnesium. Currently used volume stable barrier membranes are made of titanium-reinforced PTFE or titanium-reinforced collagen membranes, both, however, are accompanied by a high incidence of wound dehiscence resulting in membrane exposure, which leads to an increased infection risk. An exposed membrane could also occur directly after insertion due to insufficient soft tissue coverage of the membrane. In both cases, fast wound margin regeneration is required. As a first step of soft-tissue regeneration, gingival fibroblasts need to migrate over the barrier membrane and close the dehiscent wound. Based on this aim, this study investigated the migration behaviour of human gingival fibroblasts on a magnesium surface. Major experimental challenges such as formation of hydrogen bubbles due to initial magnesium corrosion and non-transparent material surfaces have been addressed to allow cell adhesion and to follow cell migration. The designed scratch-based cell migration assay involved vital fluorescent cell staining on a pre-corroded magnesium membrane to simulate invivo wound dehiscence. The assay has been used to compare cell migration on pre-corroded magnesium to titanium surfaces and tissue culture plastic as control substrates. First results of this assay showed that human gingival fibroblasts migrate slower on pre-corroded magnesium compared to plastic and titanium. However, the scratch was finally closed on all materials. Compared to titanium surfaces and tissue culture plastic, the surface roughness and the surface free energy (SFE) could not explain slower cell migration on magnesium surfaces. Immunohistological investigations of cellular structure revealed, that magnesium ions increased focal adhesion at concentration of additionally 75 mM MgCl2 in cell culture medium. The use of our designed cell migration assay has shown that ionic medium alterations due to magnesium corrosion has a higher impact on the cell migration rate than surface alterations. STATEMENT OF SIGNIFICANCE The design of a migration assay on non-transparent magnesium surfaces will add the option to study cell response to surface modifications, coatings and the corrosion process itself under life view conditions.
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Yu K, Dai Y, Luo Z, Long H, Zeng M, Li Z, Zhu J, Cheng L, Zhang Y, Liu H, Zhu Y. In vitro and in vivo evaluation of novel biodegradable Mg-Ag-Y alloys for use as resorbable bone fixation implant. J Biomed Mater Res A 2018; 106:2059-2069. [PMID: 29569817 DOI: 10.1002/jbm.a.36397] [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] [Received: 11/10/2017] [Revised: 02/03/2018] [Accepted: 02/28/2018] [Indexed: 11/10/2022]
Abstract
Magnesium (Mg) alloy is gaining more interest because of its degradability and osteogenic potential. Still, it has some deficiencies, such as its rapid degradation rate, insufficient mechanical property. This research aimed to design a novel biodegradable Mg-argentum (Ag)-yttrium (Y) alloy, and Y was added to improve degradable and mechanical property. Mg-Ag-Y alloys were characterized for mechanical features, practicabilities in vitro and in vivo. The mechanical features results shown that this novel component was similar to native bone tissue in elastic moduli, tensile, and compressive stress. Then mesenchymal stem cells (MSCs) were seeded in alloys to assess cell toxicity in vitro. The results showed that its aqueous extract was suitable for MSCs adhesion and proliferation. Then the alloy was evaluated for biomedical applications in nonfractured distal femora of Sprague Dawley rats for 6 weeks, compared with those of pure-Mg and stainless steel groups. All rats survived, and hematological and histological evaluation showed no abnormal physiology 6 weeks postimplantation, and measurements of serum Mg2+ concentration were within normal levels. X-ray scanning, microcomputed tomography, and histological examinations were performed to evaluate the degradability and osteogenic potential. The results indicated that the degradation rate of alloy was 0.91 mm per year, (range 0.77-1.22 mm), and pure-Mg 1.80 mm per year (1.43-2.26 mm). The new bone quantity was 3.18 mm3 (1.46-4.44 mm3 ) in Mg-Ag-Y alloys group, 1.39 mm3 (0.54-2.32 mm3 ) in pure-Mg group, and none in stainless steel group. These promising results suggest potential clinical application of Mg-Ag-Y alloys for use as resorbable bone fixation implant. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2059-2069, 2018.
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Affiliation(s)
- Kun Yu
- School of Materials Science and Engineering, Central South University, Changsha, 410083, China.,Department of Materials Science and Engineering, Yantai Nanshan University, Yantai, 265713, China.,Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha, 410083, China
| | - Yilong Dai
- School of Materials Science and Engineering, Central South University, Changsha, 410083, China.,Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha, 410083, China
| | - Zhongwei Luo
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Haitao Long
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Min Zeng
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Zhaohui Li
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jianxi Zhu
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Liang Cheng
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yu Zhang
- School of Materials Science and Engineering, Central South University, Changsha, 410083, China.,Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha, 410083, China
| | - Hui Liu
- School of Materials Science and Engineering, Central South University, Changsha, 410083, China.,Department of Materials Science and Engineering, Yantai Nanshan University, Yantai, 265713, China
| | - Yong Zhu
- Department of Orthopaedics and Traumatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
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Mostofi S, Bonyadi Rad E, Wiltsche H, Fasching U, Szakacs G, Ramskogler C, Srinivasaiah S, Ueçal M, Willumeit R, Weinberg AM, Schaefer U. Effects of Corroded and Non-Corroded Biodegradable Mg and Mg Alloys on Viability, Morphology and Differentiation of MC3T3-E1 Cells Elicited by Direct Cell/Material Interaction. PLoS One 2016; 11:e0159879. [PMID: 27459513 PMCID: PMC4961286 DOI: 10.1371/journal.pone.0159879] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 07/08/2016] [Indexed: 12/23/2022] Open
Abstract
This study investigated the effect of biodegradable Mg and Mg alloys on selected properties of MC3T3-E1 cells elicited by direct cell/material interaction. The chemical composition and morphology of the surface of Mg and Mg based alloys (Mg2Ag and Mg10Gd) were analysed by scanning electron microscopy (SEM) and EDX, following corrosion in cell culture medium for 1, 2, 3 and 8 days. The most pronounced difference in surface morphology, namely crystal formation, was observed when Pure Mg and Mg2Ag were immersed in cell medium for 8 days, and was associated with an increase in atomic % of oxygen and a decrease of surface calcium and phosphorous. Crystal formation on the surface of Mg10Gd was, in contrast, negligible at all time points. Time-dependent changes in oxygen, calcium and phosphorous surface content were furthermore not observed for Mg10Gd. MC3T3-E1 cell viability was reduced by culture on the surfaces of corroded Mg, Mg2Ag and Mg10Gd in a corrosion time-independent manner. Cells did not survive when cultured on 3 day pre-corroded Pure Mg and Mg2Ag, indicating crystal formation to be particular detrimental in this regard. Cell viability was not affected when cells were cultured on non-corroded Mg and Mg alloys for up to 12 days. These results suggest that corrosion associated changes in surface morphology and chemical composition significantly hamper cell viability and, thus, that non-corroded surfaces are more conducive to cell survival. An analysis of the differentiation potential of MC3T3-E1 cells cultured on non-corroded samples based on measurement of Collagen I and Runx2 expression, revealed a down-regulation of these markers within the first 6 days following cell seeding on all samples, despite persistent survival and proliferation. Cells cultured on Mg10Gd, however, exhibited a pronounced upregulation of collagen I and Runx2 between days 8 and 12, indicating an enhancement of osteointegration by this alloy that could be valuable for in vivo orthopedic applications.
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Affiliation(s)
- Sepideh Mostofi
- Department of Orthopedics and Orthopedic Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Ehsan Bonyadi Rad
- Department of Orthopedics and Orthopedic Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Helmar Wiltsche
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, 8010 Graz, Austria
| | - Ulrike Fasching
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
| | - Gabor Szakacs
- Helmholtz-Zentrum Geesthacht, Institute of Material Research, Geesthacht, Germany
| | - Claudia Ramskogler
- Institute of Materials Science and Welding; Graz University of Technology, 8010 Graz, Austria
| | - Sriveena Srinivasaiah
- Department of Orthopedics and Orthopedic Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Muammer Ueçal
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
| | - Regine Willumeit
- Helmholtz-Zentrum Geesthacht, Institute of Material Research, Geesthacht, Germany
| | - Annelie-Martina Weinberg
- Department of Orthopedics and Orthopedic Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Ute Schaefer
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
- * E-mail:
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Ahmad Agha N, Willumeit-Römer R, Laipple D, Luthringer B, Feyerabend F. The Degradation Interface of Magnesium Based Alloys in Direct Contact with Human Primary Osteoblast Cells. PLoS One 2016; 11:e0157874. [PMID: 27327435 PMCID: PMC4915630 DOI: 10.1371/journal.pone.0157874] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/06/2016] [Indexed: 01/17/2023] Open
Abstract
Magnesium alloys have been identified as a new generation material of orthopaedic implants. In vitro setups mimicking physiological conditions are promising for material / degradation analysis prior to in vivo studies however the direct influence of cell on the degradation mechanism has never been investigated. For the first time, the direct, active, influence of human primary osteoblasts on magnesium-based materials (pure magnesium, Mg-2Ag and Mg-10Gd alloys) is studied for up to 14 days. Several parameters such as composition of the degradation interface (directly beneath the cells) are analysed with a scanning electron microscope equipped with energy dispersive X-ray and focused ion beam. Furthermore, influence of the materials on cell metabolism is examined via different parameters like active mineralisation process. The results are highlighting the influences of the selected alloying element on the initial cells metabolic activity.
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Affiliation(s)
- Nezha Ahmad Agha
- Division of Metallic Biomaterials, Institute of Material Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
- * E-mail:
| | - Regine Willumeit-Römer
- Division of Metallic Biomaterials, Institute of Material Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - Daniel Laipple
- Division of Materials Physics, Institute of Material Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - Bérengère Luthringer
- Division of Metallic Biomaterials, Institute of Material Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - Frank Feyerabend
- Division of Metallic Biomaterials, Institute of Material Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
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Jähn K, Saito H, Taipaleenmäki H, Gasser A, Hort N, Feyerabend F, Schlüter H, Rueger JM, Lehmann W, Willumeit-Römer R, Hesse E. Intramedullary Mg2Ag nails augment callus formation during fracture healing in mice. Acta Biomater 2016; 36:350-60. [PMID: 27039975 DOI: 10.1016/j.actbio.2016.03.041] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/19/2016] [Accepted: 03/30/2016] [Indexed: 02/07/2023]
Abstract
UNLABELLED Intramedullary stabilization is frequently used to treat long bone fractures. Implants usually remain unless complications arise. Since implant removal can become technically very challenging with the potential to cause further tissue damage, biodegradable materials are emerging as alternative options. Magnesium (Mg)-based biodegradable implants have a controllable degradation rate and good tissue compatibility, which makes them attractive for musculoskeletal research. Here we report for the first time the implantation of intramedullary nails made of an Mg alloy containing 2% silver (Mg2Ag) into intact and fractured femora of mice. Prior in vitro analyses revealed an inhibitory effect of Mg2Ag degradation products on osteoclast differentiation and function with no impair of osteoblast function. In vivo, Mg2Ag implants degraded under non-fracture and fracture conditions within 210days and 133days, respectively. During fracture repair, osteoblast function and subsequent bone formation were enhanced, while osteoclast activity and bone resorption were decreased, leading to an augmented callus formation. We observed a widening of the femoral shaft under steady state and regenerating conditions, which was at least in part due to an uncoupled bone remodeling. However, Mg2Ag implants did not cause any systemic adverse effects. These data suggest that Mg2Ag implants might be promising for intramedullary fixation of long bone fractures, a novel concept that has to be further investigated in future studies. STATEMENT OF SIGNIFICANCE Biodegradable implants are promising alternatives to standard steel or titanium implants to avoid implant removal after fracture healing. We therefore developed an intramedullary nail using a novel biodegradable magnesium-silver-alloy (Mg2Ag) and investigated the in vitro and in vivo effects of the implants on bone remodeling under steady state and fracture healing conditions in mice. Our results demonstrate that intramedullary Mg2Ag nails degrade in vivo over time without causing adverse effects. Importantly, radiographs, μCT and bone histomorphometry revealed a significant increase in callus size due to an augmented bone formation rate and a reduced bone resorption in fractures supported by Mg2Ag nails, thereby improving bone healing. Thus, intramedullary Mg2Ag nails are promising biomaterials for fracture healing to circumvent implant removal.
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Comparison of the Influence of Phospholipid-Coated Porous Ti-6Al-4V Material on the Osteosarcoma Cell Line Saos-2 and Primary Human Bone Derived Cells. METALS 2016. [DOI: 10.3390/met6030066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Kieke M, Feyerabend F, Lemaitre J, Behrens P, Willumeit-Römer R. Degradation rates and products of pure magnesium exposed to different aqueous media under physiological conditions. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/bnm-2015-0020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractAs magnesium and many of its alloys are a promising class of degradable implant materials, a thorough understanding of their degradation under physiological conditions is a key challenge in the field of biomaterial science. In order to increase the predictive power of in vitro studies, it is necessary to imitate the in vivo conditions, track the decomposition process and identify the products that form during the degradation pathway. In this in vitro study, slices of pure magnesium were exposed to Hank’s Balanced Salt Solution (HBSS), Dulbecco’s Modified Eagle Medium (DMEM) and simulated body fluid (SBF), respectively, under cell culture conditions, which included CO
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Burmester A, Willumeit-Römer R, Feyerabend F. Behavior of bone cells in contact with magnesium implant material. J Biomed Mater Res B Appl Biomater 2015; 105:165-179. [PMID: 26448207 DOI: 10.1002/jbm.b.33542] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/03/2015] [Accepted: 09/17/2015] [Indexed: 01/10/2023]
Abstract
Magnesium-based implants exhibit several advantages, such as biodegradability and possible osteoinductive properties. Whether the degradation may induce cell type-specific changes in metabolism still remains unclear. To examine the osteoinductivity mechanisms, the reaction of bone-derived cells (MG63, U2OS, SaoS2, and primary human osteoblasts (OB)) to magnesium (Mg) was determined. Mg-based extracts were used to mimic more realistic Mg degradation conditions. Moreover, the influence of cells having direct contact with the degrading Mg metal was investigated. In exposure to extracts and in direct contact, the cells decreased pH and osmolality due to metabolic activity. Proliferating cells showed no significant reaction to extracts, whereas differentiating cells were negatively influenced. In contrast to extract exposure, where cell size increased, in direct contact to magnesium, cell size was stable or even decreased. The amount of focal adhesions decreased over time on all materials. Genes involved in bone formation were significantly upregulated, especially for primary human osteoblasts. Some osteoinductive indicators were observed for OB: (i) an increased cell count after extract addition indicated a higher proliferation potential; (ii) increased cell sizes after extract supplementation in combination with augmented adhesion behavior of these cells suggest an early switch to differentiation; and (iii) bone-inducing gene expression patterns were determined for all analyzed conditions. The results from the cell lines were inhomogeneous and showed no specific stimulus of Mg. The comparison of the different cell types showed that primary cells of the investigated tissue should be used as an in vitro model if Mg is analyzed. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 165-179, 2017.
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Affiliation(s)
- Anna Burmester
- Department for Material Design and Characterisation, Helmholtz-Zentrum Geesthacht, Institute of Material Research, 21502, Geesthacht, Germany
| | - Regine Willumeit-Römer
- Department for Material Design and Characterisation, Helmholtz-Zentrum Geesthacht, Institute of Material Research, 21502, Geesthacht, Germany
| | - Frank Feyerabend
- Department for Material Design and Characterisation, Helmholtz-Zentrum Geesthacht, Institute of Material Research, 21502, Geesthacht, Germany
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Tschon M, Incerti-Parenti S, Cepollaro S, Checchi L, Fini M. Photobiomodulation with low-level diode laser promotes osteoblast migration in an in vitro micro wound model. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:78002. [PMID: 26140461 DOI: 10.1117/1.jbo.20.7.078002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 06/03/2015] [Indexed: 05/15/2023]
Abstract
Laser photobiomodulation can improve bone healing, but well-defined treatment parameters are lacking. Saos-2 human osteoblast-like cells were subjected to an in vitro scratch-wound healing assay and irradiated by a 915-nm gallium-aluminum-arsenide diode laser for 0, 48, 96, and 144 s using doses of, respectively, 0, 5, 10, and 15 J/cm(2) . Wound area was measured after 4, 24, 48, and 72 h. Cell viability, DNA content, gene expression, and release of bone-related proteins were evaluated after 24, 48, and 72 h. Laser significantly improved wound healing compared with nonirradiated controls. Cells treated with laser doses of 5 and 10 J/cm(2) reached wound closure after 72 h, followed by 15 J/cm(2) after 96 h. With the cell proliferation inhibitor Mitomycin C, the doses of 10 and 15 J/cm(2) maintained an improved wound healing compared with controls. Laser increased collagen type 1 gene expression with higher doses inducing a longer-lasting effect, whereas transforming growth factor-beta 1 showed comparable or decreased levels in irradiated versus nonirradiated groups, with no effect on protein release. This study demonstrated that laser photobiomodulation at 915 nm promoted wound healing mainly through stimulation of cell migration and collagen deposition by osteoblasts.
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Affiliation(s)
- Matilde Tschon
- Rizzoli Orthopaedic Institute, Laboratory of Preclinical and Surgical Studies, via di Barbiano 1/10, Bologna 40136, Italy
| | - Serena Incerti-Parenti
- University of Bologna, Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences, via San Vitale 59, Bologna 40125, Italy
| | - Simona Cepollaro
- Rizzoli Orthopaedic Institute, Laboratory of Preclinical and Surgical Studies, via di Barbiano 1/10, Bologna 40136, ItalycUniversity of Bologna, Department of Medical and Surgical Sciences, via Massarenti 9, Bologna 40138, Italy
| | - Luigi Checchi
- University of Bologna, Unit of Periodontology, Department of Biomedical and Neuromotor Sciences, via San Vitale 59, Bologna 40125, Italy
| | - Milena Fini
- Rizzoli Orthopaedic Institute, Laboratory of Preclinical and Surgical Studies, via di Barbiano 1/10, Bologna 40136, Italy
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