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Jiang P, Zhang Y, Hu R, Shi B, Zhang L, Huang Q, Yang Y, Tang P, Lin C. Advanced surface engineering of titanium materials for biomedical applications: From static modification to dynamic responsive regulation. Bioact Mater 2023; 27:15-57. [PMID: 37035422 PMCID: PMC10074421 DOI: 10.1016/j.bioactmat.2023.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/29/2023] Open
Abstract
Titanium (Ti) and its alloys have been widely used as orthopedic implants, because of their favorable mechanical properties, corrosion resistance and biocompatibility. Despite their significant success in various clinical applications, the probability of failure, degradation and revision is undesirably high, especially for the patients with low bone density, insufficient quantity of bone or osteoporosis, which renders the studies on surface modification of Ti still active to further improve clinical results. It is discerned that surface physicochemical properties directly influence and even control the dynamic interaction that subsequently determines the success or rejection of orthopedic implants. Therefore, it is crucial to endow bulk materials with specific surface properties of high bioactivity that can be performed by surface modification to realize the osseointegration. This article first reviews surface characteristics of Ti materials and various conventional surface modification techniques involving mechanical, physical and chemical treatments based on the formation mechanism of the modified coatings. Such conventional methods are able to improve bioactivity of Ti implants, but the surfaces with static state cannot respond to the dynamic biological cascades from the living cells and tissues. Hence, beyond traditional static design, dynamic responsive avenues are then emerging. The dynamic stimuli sources for surface functionalization can originate from environmental triggers or physiological triggers. In short, this review surveys recent developments in the surface engineering of Ti materials, with a specific emphasis on advances in static to dynamic functionality, which provides perspectives for improving bioactivity and biocompatibility of Ti implants.
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Terrie L, Burattini M, Van Vlierberghe S, Fassina L, Thorrez L. Enhancing Myoblast Fusion and Myotube Diameter in Human 3D Skeletal Muscle Constructs by Electromagnetic Stimulation. Front Bioeng Biotechnol 2022; 10:892287. [PMID: 35814025 PMCID: PMC9256958 DOI: 10.3389/fbioe.2022.892287] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Skeletal muscle tissue engineering (SMTE) aims at the in vitro generation of 3D skeletal muscle engineered constructs which mimic the native muscle structure and function. Although native skeletal muscle is a highly dynamic tissue, most research approaches still focus on static cell culture methods, while research on stimulation protocols indicates a positive effect, especially on myogenesis. A more mature muscle construct may be needed especially for the potential applications for regenerative medicine purposes, disease or drug disposition models. Most efforts towards dynamic cell or tissue culture methods have been geared towards mechanical or electrical stimulation or a combination of those. In the context of dynamic methods, pulsed electromagnetic field (PEMF) stimulation has been extensively used in bone tissue engineering, but the impact of PEMF on skeletal muscle development is poorly explored. Here, we evaluated the effects of PEMF stimulation on human skeletal muscle cells both in 2D and 3D experiments. First, PEMF was applied on 2D cultures of human myoblasts during differentiation. In 2D, enhanced myogenesis was observed, as evidenced by an increased myotube diameter and fusion index. Second, 2D results were translated towards 3D bioartificial muscles (BAMs). BAMs were subjected to PEMF for varying exposure times, where a 2-h daily stimulation was found to be effective in enhancing 3D myotube formation. Third, applying this protocol for the entire 16-days culture period was compared to a stimulation starting at day 8, once the myotubes were formed. The latter was found to result in significantly higher myotube diameter, fusion index, and increased myosin heavy chain 1 expression. This work shows the potential of electromagnetic stimulation for enhancing myotube formation both in 2D and 3D, warranting its further consideration in dynamic culturing techniques.
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Affiliation(s)
- Lisanne Terrie
- Tissue Engineering Lab, Dep. Development and Regeneration, KU Leuven Kulak, Kortrijk, Belgium
| | - Margherita Burattini
- Tissue Engineering Lab, Dep. Development and Regeneration, KU Leuven Kulak, Kortrijk, Belgium
- Dept. of Surgical Sciences, Dentistry and Maternity, University of Verona, Verona, Italy
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Dep. of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Lorenzo Fassina
- Dept. of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Lieven Thorrez
- Tissue Engineering Lab, Dep. Development and Regeneration, KU Leuven Kulak, Kortrijk, Belgium
- *Correspondence: Lieven Thorrez,
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Effects of Magnetic Stimulation on Dental Implant Osseointegration: A Scoping Review. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This PRISMA-ScR driven scoping review aims to evaluate the influence of magnetic field stimulation on dental implant osseointegration. Seven databases were screened adopting ad-hoc strings. All clinical and preclinical studies analyzing the effects of magnetic fields on dental implant osseointegration were included. From 3124 initial items, on the basis of the eligibility criteria, 33 articles, regarding both Pulsed ElectroMagnetic Fields (PEMF) and Static magnetic Fields from permanent Magnets (SFM) were finally included and critically analyzed. In vitro studies showed a positive effect of PEMF, but contrasting effects of SFM on bone cell proliferation, whereas cell adhesion and osteogenic differentiation were induced by both types of stimulation. In vivo studies showed an increased bone-to-implant contact rate in different animal models and clinical studies revealed positive effects on implant stability, under magnetic stimulation. In conclusion, although positive effects of magnetic exposure on osteogenesis activity and osseointegration emerged, this scoping review highlighted the need for further preclinical and clinical studies. More standardized designs, accurate choice of stimulation parameters, adequate methods of evaluation of the outcomes, greater sample size and longer follow-ups are needed to clearly assess the effect of magnetic fields on dental implant osseointegration.
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Valentin D, Presas A, Roehr C, Mele E, Biehl C, Heiss C, Bosbach WA. On the quantification of local power densities in a new vibration bioreactor. PLoS One 2021; 16:e0245768. [PMID: 33481928 PMCID: PMC7822512 DOI: 10.1371/journal.pone.0245768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/07/2021] [Indexed: 12/30/2022] Open
Abstract
We investigate the power densities which are obtainable locally in a vibration bioreactor. These reactor systems are of great relevance for research about oncological or antibacterial therapies. Our focus lies on the local liquid pressure caused by resonance vibration in the fluid contained by the reactor's petri dish. We use for the excitation one piezoelectric patch which offer advantages concerning controllability and reproducibility, when compared to ultrasound. The experimental work is extended by finite element analyses of bioreactor details. The peaks of the vibration response for water, sodium chloride (0.1N Standard solution), and McCoy's 5A culture medium are in good alignment. Several natural frequencies can be observed. Local power density can reach multiple times the magnitude used in ultrasound studies. Based on the observed local power densities, we are planning future work for the exposure of cell cultures to mechanical vibration.
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Affiliation(s)
- David Valentin
- Center for Industrial Diagnostics and Fluid Dynamics (CDIF), Polytechnic University of Catalonia (UPC), Barcelona, Spain
| | - Alexandre Presas
- Center for Industrial Diagnostics and Fluid Dynamics (CDIF), Polytechnic University of Catalonia (UPC), Barcelona, Spain
| | - Charline Roehr
- Experimental Trauma Surgery, Justus-Liebig University of Giessen, Giessen, Germany
| | - Elisa Mele
- Materials Department, Loughborough University, Loughborough, United Kingdom
| | - Christoph Biehl
- Experimental Trauma Surgery, Justus-Liebig University of Giessen, Giessen, Germany
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital of Giessen, Giessen, Germany
| | - Christian Heiss
- Experimental Trauma Surgery, Justus-Liebig University of Giessen, Giessen, Germany
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital of Giessen, Giessen, Germany
| | - Wolfram A. Bosbach
- Experimental Trauma Surgery, Justus-Liebig University of Giessen, Giessen, Germany
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital of Giessen, Giessen, Germany
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In Vitro Production of Calcified Bone Matrix onto Wool Keratin Scaffolds via Osteogenic Factors and Electromagnetic Stimulus. MATERIALS 2020; 13:ma13143052. [PMID: 32650489 PMCID: PMC7411850 DOI: 10.3390/ma13143052] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 12/15/2022]
Abstract
Pulsed electromagnetic field (PEMF) has drawn attention as a potential tool to improve the ability of bone biomaterials to integrate into the surrounding tissue. We investigated the effects of PEMF (frequency, 75 Hz; magnetic induction amplitude, 2 mT; pulse duration, 1.3 ms) on human osteoblast-like cells (SAOS-2) seeded onto wool keratin scaffolds in terms of proliferation, differentiation, and production of the calcified bone extracellular matrix. The wool keratin scaffold offered a 3D porous architecture for cell guesting and nutrient diffusion, suggesting its possible use as a filler to repair bone defects. Here, the combined approach of applying a daily PEMF exposure with additional osteogenic factors stimulated the cells to increase both the deposition of bone-related proteins and calcified matrix onto the wool keratin scaffolds. Also, the presence of SAOS-2 cells, or PEMF, or osteogenic factors did not influence the compression behavior or the resilience of keratin scaffolds in wet conditions. Besides, ageing tests revealed that wool keratin scaffolds were very stable and showed a lower degradation rate compared to commercial collagen sponges. It is for these reasons that this tissue engineering strategy, which improves the osteointegration properties of the wool keratin scaffold, may have a promising application for long term support of bone formation in vivo.
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Valentin D, Roehr C, Presas A, Heiss C, Egusquiza E, Bosbach WA. Experimental and Numerical Design and Evaluation of a Vibration Bioreactor using Piezoelectric Patches. SENSORS (BASEL, SWITZERLAND) 2019; 19:E436. [PMID: 30669693 PMCID: PMC6359548 DOI: 10.3390/s19020436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/16/2019] [Accepted: 01/16/2019] [Indexed: 11/16/2022]
Abstract
In this present study, we propose a method for exposing biological cells to mechanical vibration. The motive for our research was to design a bioreactor prototype in which in-depth in vitro studies about the influence of vibration on cells and their metabolism can be performed. The therapy of cancer or antibacterial measures are applications of interest. In addition, questions about the reaction of neurons to vibration are still largely unanswered. In our methodology, we used a piezoelectric patch (PZTp) for inducing mechanical vibration to the structure. To control the vibration amplitude, the structure could be excited at different frequency ranges, including resonance and non-resonance conditions. Experimental results show the vibration amplitudes expected for every frequency range tested, as well as the vibration pattern of those excitations. These are essential parameters to quantify the effect of vibration on cell behavior. Furthermore, a numerical model was validated with the experimental results presenting accurate results for the prediction of those parameters. With the calibrated numerical model, we will study in greater depth the effects of different vibration patterns for the abovementioned cell types.
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Affiliation(s)
- David Valentin
- Center for Industrial Diagnostics and Fluid Dynamics (CDIF), Polytechnic University of Catalonia (UPC), 08034 Barcelona, Spain.
| | - Charline Roehr
- Experimental Trauma Surgery, Justus Liebig University of Giessen, Germany.
| | - Alexandre Presas
- Center for Industrial Diagnostics and Fluid Dynamics (CDIF), Polytechnic University of Catalonia (UPC), 08034 Barcelona, Spain.
- Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China.
| | - Christian Heiss
- Experimental Trauma Surgery, Justus Liebig University of Giessen, Germany.
| | - Eduard Egusquiza
- Center for Industrial Diagnostics and Fluid Dynamics (CDIF), Polytechnic University of Catalonia (UPC), 08034 Barcelona, Spain.
| | - Wolfram A Bosbach
- Experimental Trauma Surgery, Justus Liebig University of Giessen, Germany.
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Bloise N, Petecchia L, Ceccarelli G, Fassina L, Usai C, Bertoglio F, Balli M, Vassalli M, Cusella De Angelis MG, Gavazzo P, Imbriani M, Visai L. The effect of pulsed electromagnetic field exposure on osteoinduction of human mesenchymal stem cells cultured on nano-TiO2 surfaces. PLoS One 2018; 13:e0199046. [PMID: 29902240 PMCID: PMC6002089 DOI: 10.1371/journal.pone.0199046] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/30/2018] [Indexed: 12/11/2022] Open
Abstract
Human bone marrow-derived mesenchymal stem cells (hBM-MSCs) are considered a great promise in the repair and regeneration of bone. Considerable efforts have been oriented towards uncovering the best strategy to promote stem cells osteogenic differentiation. In previous studies, hBM-MSCs exposed to physical stimuli such as pulsed electromagnetic fields (PEMFs) or directly seeded on nanostructured titanium surfaces (TiO2) were shown to improve their differentiation to osteoblasts in osteogenic condition. In the present study, the effect of a daily PEMF-exposure on osteogenic differentiation of hBM-MSCs seeded onto nanostructured TiO2 (with clusters under 100 nm of dimension) was investigated. TiO2-seeded cells were exposed to PEMF (magnetic field intensity: 2 mT; intensity of induced electric field: 5 mV; frequency: 75 Hz) and examined in terms of cell physiology modifications and osteogenic differentiation. Results showed that PEMF exposure affected TiO2-seeded cells osteogenesis by interfering with selective calcium-related osteogenic pathways, and greatly enhanced hBM-MSCs osteogenic features such as the expression of early/late osteogenic genes and protein production (e.g., ALP, COL-I, osteocalcin and osteopontin) and ALP activity. Finally, PEMF-treated cells resulted to secrete into conditioned media higher amounts of BMP-2, DCN and COL-I than untreated cell cultures. These findings confirm once more the osteoinductive potential of PEMF, suggesting that its combination with TiO2 nanostructured surface might be a great option in bone tissue engineering applications.
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Affiliation(s)
- Nora Bloise
- Department of Molecular Medicine (DMM), Centre for Health Technologies (C.H.T.), INSTM Unit, University of Pavia, Pavia, Italy
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
- * E-mail: (NB); (LV)
| | | | - Gabriele Ceccarelli
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Cesare Usai
- Institute of Biophysics, National Research Council, Genova, Italy
| | - Federico Bertoglio
- Department of Molecular Medicine (DMM), Centre for Health Technologies (C.H.T.), INSTM Unit, University of Pavia, Pavia, Italy
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
| | - Martina Balli
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Massimo Vassalli
- Institute of Biophysics, National Research Council, Genova, Italy
| | - Maria Gabriella Cusella De Angelis
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Paola Gavazzo
- Institute of Biophysics, National Research Council, Genova, Italy
| | - Marcello Imbriani
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine (DMM), Centre for Health Technologies (C.H.T.), INSTM Unit, University of Pavia, Pavia, Italy
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
- * E-mail: (NB); (LV)
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Low-Frequency Pulsed Electromagnetic Field Is Able to Modulate miRNAs in an Experimental Cell Model of Alzheimer's Disease. JOURNAL OF HEALTHCARE ENGINEERING 2017; 2017:2530270. [PMID: 29065581 PMCID: PMC5434238 DOI: 10.1155/2017/2530270] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 03/02/2017] [Accepted: 04/03/2017] [Indexed: 01/01/2023]
Abstract
The aim of the present study was to investigate on the effects of a low-frequency pulsed electromagnetic field (LF-PEMF) in an experimental cell model of Alzheimer's disease (AD) to assess new therapies that counteract neurodegeneration. In recent scientific literature, it is documented that the deep brain stimulation via electromagnetic fields (EMFs) modulates the neurophysiological activity of the pathological circuits and produces clinical benefits in AD patients. EMFs are applied for tissue regeneration because of their ability to stimulate cell proliferation and immune functions via the HSP70 protein family. However, the effects of EMFs are still controversial and further investigations are required. Our results demonstrate the ability of our LF-PEMF to modulate gene expression in cell functions that are dysregulated in AD (i.e., BACE1) and that these effects can be modulated with different treatment conditions. Of relevance, we will focus on miRNAs regulating the pathways involved in brain degenerative disorders.
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9
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Cornacchione M, Pellegrini M, Fassina L, Mognaschi ME, Di Siena S, Gimmelli R, Ambrosino P, Soldovieri MV, Taglialatela M, Gianfrilli D, Isidori AM, Lenzi A, Naro F. β-Adrenergic response is counteracted by extremely-low-frequency pulsed electromagnetic fields in beating cardiomyocytes. J Mol Cell Cardiol 2016; 98:146-58. [DOI: 10.1016/j.yjmcc.2016.07.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 07/08/2016] [Indexed: 12/18/2022]
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10
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Osera C, Amadio M, Falone S, Fassina L, Magenes G, Amicarelli F, Ricevuti G, Govoni S, Pascale A. Pre-exposure of neuroblastoma cell line to pulsed electromagnetic field prevents H2 O2 -induced ROS production by increasing MnSOD activity. Bioelectromagnetics 2015; 36:219-32. [PMID: 25708841 DOI: 10.1002/bem.21900] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 01/16/2015] [Indexed: 12/14/2022]
Abstract
Electromagnetic fields (EMFs) have been linked to increased risk of cancers and neurodegenerative diseases; however, EMFs can also elicit positive effects on biological systems, and redox status seems crucially involved in EMF biological effects. This study aimed to assess whether a short and repeated pulsed EMF (PEMF) could trigger adaptive responses against an oxidative insult in a neuronal cellular model. We found that a 40 min overall (four times a week, 10 min each) pre-exposure to PEMF did not affect major physiological parameters and led to a significant increase of Mn-dependent superoxide dismutase activity in the human neuroblastoma SH-SY5Y cell line. In addition, we found PEMF-pre-exposed cells exhibited decreased reactive oxygen species production following a 30 min H2 O2 challenge, with respect to non pre-exposed cells. Our findings might provide new insights on the role played by short and repeated PEMF stimulations in the enhancement of cellular defenses against oxidative insults. Although studies in normal neuronal cells would be useful to further confirm our hypothesis, we suggest that specific PEMF treatments may have potential biological repercussions in diseases where oxidative stress is implicated.
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Affiliation(s)
- Cecilia Osera
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
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11
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Rodríguez-Fuentes N, Reynoso-Ducoing O, Rodríguez-Hernández A, Ambrosio-Hernández JR, Piña-Barba MC, Zepeda-Rodríguez A, Cerbón-Cervantes MA, Tapia-Ramírez J, Alcantara-Quintana LE. Isolation of human mesenchymal stem cells and their cultivation on the porous bone matrix. J Vis Exp 2015:e51999. [PMID: 25742362 PMCID: PMC4354626 DOI: 10.3791/51999] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have a differentiation potential towards osteoblastic lineage when they are stimulated with soluble factors or specific biomaterials. This work presents a novel option for the delivery of MSCs from human amniotic membrane (AM-hMSCs) that employs bovine bone matrix Nukbone (NKB) as a scaffold. Thus, the application of MSCs in repair and tissue regeneration processes depends principally on the efficient implementation of the techniques for placing these cells in a host tissue. For this reason, the design of biomaterials and cellular scaffolds has gained importance in recent years because the topographical characteristics of the selected scaffold must ensure adhesion, proliferation and differentiation into the desired cell lineage in the microenvironment of the injured tissue. This option for the delivery of MSCs from human amniotic membrane (AM-hMSCs) employs bovine bone matrix as a cellular scaffold and is an efficient culture technique because the cells respond to the topographic characteristics of the bovine bone matrix Nukbone (NKB), i.e., spreading on the surface, macroporous covering and colonizing the depth of the biomaterial, after the cell isolation process. We present the procedure for isolating and culturing MSCs on a bovine matrix.
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Affiliation(s)
- Nayeli Rodríguez-Fuentes
- Depto. Materiales Metálicos y Cerámicos, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México (UNAM)
| | - Olivia Reynoso-Ducoing
- Depto. of Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM)
| | - Ana Rodríguez-Hernández
- Depto. of Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM)
| | - Javier R Ambrosio-Hernández
- Depto. of Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM)
| | - Maria C Piña-Barba
- Depto. Materiales Metálicos y Cerámicos, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México (UNAM)
| | - Armando Zepeda-Rodríguez
- Depto. Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM)
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12
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Marchesi N, Osera C, Fassina L, Amadio M, Angeletti F, Morini M, Magenes G, Venturini L, Biggiogera M, Ricevuti G, Govoni S, Caorsi S, Pascale A, Comincini S. Autophagy is modulated in human neuroblastoma cells through direct exposition to low frequency electromagnetic fields. J Cell Physiol 2014; 229:1776-86. [PMID: 24676932 DOI: 10.1002/jcp.24631] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 03/24/2014] [Indexed: 02/06/2023]
Abstract
In neurogenerative diseases, comprising Alzheimer's (AD), functional alteration in autophagy is considered one of the pathological hallmarks and a promising therapeutic target. Epidemiological investigations on the possible causes undergoing these diseases have suggested that electromagnetic fields (EMF) exposition can contribute to their etiology. On the other hand, EMF have therapeutic implications in reactivating neuronal functionality. To partly clarify this dualism, the effect of low-frequency EMF (LF-EMF) on the modulation of autophagy was investigated in human neuroblastoma SH-SY5Y cells, which were also subsequently exposed to Aβ peptides, key players in AD. The results primarily point that LF-EMF induce a significant reduction of microRNA 30a (miR-30a) expression with a concomitant increase of Beclin1 transcript (BECN1) and its corresponding protein. Furthermore, LF-EMF counteract the induced miR-30a up-regulation in the same cells transfected with miR-30a mimic precursor molecules and, on the other side, rescue Beclin1 expression after BECN1 siRNA treatment. The expression of autophagy-related markers (ATG7 and LC3B-II) as well as the dynamics of autophagosome formation were also visualized after LF-EMF exposition. Finally, different protocols of repeated LF-EMF treatments were assayed to contrast the effects of Aβ peptides in vitro administration. Overall, this research demonstrates, for the first time, that specific LF-EMF treatments can modulate in vitro the expression of a microRNA sequence, which in turn affects autophagy via Beclin1 expression. Taking into account the pivotal role of autophagy in the clearance of protein aggregates within the cells, our results indicate a potential cytoprotective effect exerted by LF-EMF in neurodegenerative diseases such as AD. J. Cell. Physiol. 229: 1776-1786, 2014. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Nicoletta Marchesi
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
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13
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Mognaschi ME, Di Barba P, Magenes G, Lenzi A, Naro F, Fassina L. Field models and numerical dosimetry inside an extremely-low-frequency electromagnetic bioreactor: the theoretical link between the electromagnetically induced mechanical forces and the biological mechanisms of the cell tensegrity. SPRINGERPLUS 2014; 3:473. [PMID: 25202652 PMCID: PMC4156577 DOI: 10.1186/2193-1801-3-473] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/09/2014] [Indexed: 02/07/2023]
Abstract
We have implemented field models and performed a detailed numerical dosimetry inside our extremely-low-frequency electromagnetic bioreactor which has been successfully used in in vitro Biotechnology and Tissue Engineering researches. The numerical dosimetry permitted to map the magnetic induction field (maximum module equal to about 3.3 mT) and to discuss its biological effects in terms of induced electric currents and induced mechanical forces (compression and traction). So, in the frame of the tensegrity-mechanotransduction theory of Ingber, the study of these electromagnetically induced mechanical forces could be, in our opinion, a powerful tool to understand some effects of the electromagnetic stimulation whose mechanisms remain still elusive.
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Affiliation(s)
- Maria Evelina Mognaschi
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy
| | - Paolo Di Barba
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy
| | - Giovanni Magenes
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy ; Centro di Ingegneria Tissutale (C.I.T.), Università di Pavia, Pavia, Italy
| | - Andrea Lenzi
- Dipartimento di Medicina Sperimentale, Università "Sapienza", Rome, Italy
| | - Fabio Naro
- Dipartimento di Scienze Anatomiche, Istologiche, Medico-Legali e dell'Apparato Locomotore, Università "Sapienza", Rome, Italy
| | - Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy ; Centro di Ingegneria Tissutale (C.I.T.), Università di Pavia, Pavia, Italy
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Omes C, Fassina L, Van Vlierberghe S, Magenes G, Dubruel P, Vaghi P, Reguzzoni M, Riva F. A case of successful interaction between cells derived from human ovarian follicular liquid and gelatin cryogel for biotech and medical applications. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:6240-3. [PMID: 24111166 DOI: 10.1109/embc.2013.6610979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Significant research efforts have been undertaken in the last decade to develop specific cell-based therapies and, in particular, adult multipotent mesenchymal stem cells (MSCs) hold great promise toward such regenerative strategies. Bio-materials have been widely used in reconstructive bone surgery to heal critical-size bone defects due to trauma, tumor resection, and tissue degeneration. In particular, gelatin cryogel scaffolds are promising new biomaterials owing to their biocompatibility. There is an increasing demand for MSC-based regenerative approaches in the musculoskeletal system. Combining stem cells with biomaterial scaffolds provides a promising strategy for tissue engineering. Our previous studies showed the possibility to obtain MSCs from the human ovarian follicular liquid (FL) that is usually wasted during in vitro fertilization (IVF). In this study, we tested the ability of these FL cells to grow on gelatin cryogel in comparison with MSCs derived from human bone marrow. Samples and controls were analyzed with confocal and scanning electron microscopes. Results demonstrated that FL cells could grow on the biomaterial not only on the top but also in the layers below till 60 µm of deepness. Data suggested that the observed cells were mesenchymal since positive for vimentin and CD-44, typical MSC markers. Successful growth of putative MSCs derived from follicular liquid on 3D gelatin cryogel opens potential developments in biotech and medical applications.
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Fassina L, Visai L, Magenes G, Schelfhout J, Bloise N, Riva F, Omes C, Avanzini MA, Cusella De Angelis MG, Benazzo F, Dierick M, Van Hoorebeke L, Dubruel P, Van Vlierberghe S. Ultrasound stimulus to enhance the bone regeneration capability of gelatin cryogels. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:846-9. [PMID: 24109820 DOI: 10.1109/embc.2013.6609633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In the present study, gelatin-based cryogels have been seeded with human SAOS-2 osteoblasts. In order to overcome the drawbacks associated with in vitro culture systems, such as limited diffusion and inhomogeneous cell-matrix distribution, this work describes the application of ultrasounds (average power, 149 mW; frequency, 1.5 MHz) to physically enhance the cell culture in vitro. The results indicate that the physical stimulation of cell-seeded gelatin-based cryogels upregulates the bone matrix production.
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Omes C, Fassina L, Magenes G, Ogliari D, Tinelli C, Riva F. Biological effects of ultrasound stimulus on cells derived from human ovarian follicular liquid. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:850-853. [PMID: 24109821 DOI: 10.1109/embc.2013.6609634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Low-Intensity Pulsed Ultrasound Stimulus (LIPUS) accelerates the bone fracture healing in animal models and in clinical studies. In this work, according to the literature, we have chosen the mesenchymal stem cells (MSCs) as precursors of bony tissue, in particular the MSCs derived from the human ovarian follicular liquid (FL), and we have investigated the effects of ultrasounds on their proliferation. We tested two different durations of ultrasound stimulus (2 and 5 min) and compared these data to the control without ultrasound treatment. To quantify the proliferation of these putative MSCs, we used the BrdU incorporation assay: in comparison with the control, the results showed that 5 min of ultrasound stimulus significantly increased the percentage number of cells in intensive proliferative activity; on the other hand, there was no significant difference using 2 min of stimulation, hypothetically because the transmitted energy was not sufficient to stimulate the cells and to consequently enhance their proliferation. In conclusion, the effects of LIPUS on putative MSCs derived from ovarian follicular liquid show potential developments in biotech or medical applications.
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17
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Thibault RA, Mikos AG, Kasper FK. Scaffold/Extracellular matrix hybrid constructs for bone-tissue engineering. Adv Healthc Mater 2013. [PMID: 23184883 DOI: 10.1002/adhm.201200209] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The limited natural ability of the body to fully repair large bone defects often necessitates the implantation of a replacement material to promote healing. While the current clinical strategies to address such bone defects generally carry associated limitations, bone-tissue engineering approaches seek to minimize any adverse effects and facilitate complete regeneration of the lost tissue. Of particular interest are hybrid constructs that incorporate multiple components found within the native bone matrix to enhance the osteogenicity of biocompatible materials, which might otherwise be non-osteogenic. This Progress Report will focus on such hybrid constructs that incorporate multiple components from native bone matrix for bone-tissue engineering and will highlight the synthesis and characterization of the hybrid constructs, cellular attachment and proliferation within the constructs, in vitro osteogenicity of the constructs, and the biological response to in vivo implantation of the constructs at ectopic and orthotopic sites.
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18
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Fassina L, Saino E, Visai L, Schelfhout J, Dierick M, Van Hoorebeke L, Dubruel P, Benazzo F, Magenes G, Van Vlierberghe S. Electromagnetic stimulation to optimize the bone regeneration capacity of gelatin-based cryogels. Int J Immunopathol Pharmacol 2012; 25:165-74. [PMID: 22507329 DOI: 10.1177/039463201202500119] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
One of the key challenges in reconstructive bone surgery is to provide living constructs that possess the ability to integrate in the surrounding host tissue. Bone graft substitutes and biomaterials have already been widely used to heal critical-size bone defects due to trauma, tumor resection and tissue degeneration. In the present study, gelatin-based cryogels have been seeded with human SAOS-2 osteoblasts followed by the in vitro culture of the cells. In order to overcome the drawbacks associated with static culture systems, including limited diffusion and in homogeneous cell-matrix distribution, the present work describes the application of a bioreactor to physically enhance the cell culture in vitro using an electromagnetic stimulus. The results indicate that the physical stimulation of cell-seeded gelatin-based cryogels upregulates the bone matrix production. We anticipate that the scaffolds developed consisting of human bone proteins and cells could be applied for clinical purposes related to bone repair.
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Affiliation(s)
- L Fassina
- Department of Computer Engineering and Systems Science, University of Pavia, Italy.
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19
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Osera C, Fassina L, Amadio M, Venturini L, Buoso E, Magenes G, Govoni S, Ricevuti G, Pascale A. Cytoprotective Response Induced by Electromagnetic Stimulation on SH-SY5Y Human Neuroblastoma Cell Line. Tissue Eng Part A 2011; 17:2573-82. [DOI: 10.1089/ten.tea.2011.0071] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Cecilia Osera
- Dipartimento di Scienze del Farmaco-Sez. Farmacologia, Università di Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Dipartimento di Informatica e Sistemistica, Università di Pavia, Pavia, Italy
- Centro di Ingegneria Tissutale (C.I.T.), Università di Pavia, Pavia, Italy
| | - Marialaura Amadio
- Dipartimento di Scienze del Farmaco-Sez. Farmacologia, Università di Pavia, Pavia, Italy
| | - Letizia Venturini
- Dipartimento di Medicina Interna e Terapia Medica—Sez. Gerontologia e Geriatria—IDR S. Margherita, Università di Pavia, Pavia, Italy
- Laboratorio di Fisiopatologia Cellulare e Immunologia Clinica—IRCCS S. Matteo, Università di Pavia, Pavia, Italy
| | - Erica Buoso
- Dipartimento di Scienze del Farmaco-Sez. Farmacologia, Università di Pavia, Pavia, Italy
| | - Giovanni Magenes
- Dipartimento di Informatica e Sistemistica, Università di Pavia, Pavia, Italy
- Centro di Ingegneria Tissutale (C.I.T.), Università di Pavia, Pavia, Italy
| | - Stefano Govoni
- Dipartimento di Scienze del Farmaco-Sez. Farmacologia, Università di Pavia, Pavia, Italy
| | - Giovanni Ricevuti
- Dipartimento di Medicina Interna e Terapia Medica—Sez. Gerontologia e Geriatria—IDR S. Margherita, Università di Pavia, Pavia, Italy
- Laboratorio di Fisiopatologia Cellulare e Immunologia Clinica—IRCCS S. Matteo, Università di Pavia, Pavia, Italy
| | - Alessia Pascale
- Dipartimento di Scienze del Farmaco-Sez. Farmacologia, Università di Pavia, Pavia, Italy
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20
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Prè D, Ceccarelli G, Gastaldi G, Asti A, Saino E, Visai L, Benazzo F, Cusella De Angelis MG, Magenes G. The differentiation of human adipose-derived stem cells (hASCs) into osteoblasts is promoted by low amplitude, high frequency vibration treatment. Bone 2011; 49:295-303. [PMID: 21550433 DOI: 10.1016/j.bone.2011.04.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 04/13/2011] [Accepted: 04/18/2011] [Indexed: 12/13/2022]
Abstract
Several studies have demonstrated that tissue culture conditions influence the differentiation of human adipose-derived stem cells (hASCs). Recently, studies performed on SAOS-2 and bone marrow stromal cells (BMSCs) have shown the effectiveness of high frequency vibration treatment on cell differentiation to osteoblasts. The aim of this study was to evaluate the effects of low amplitude, high frequency vibrations on the differentiation of hASCs toward bone tissue. In view of this goal, hASCs were cultured in proliferative or osteogenic media and stimulated daily at 30Hz for 45min for 28days. The state of calcification of the extracellular matrix was determined using the alizarin assay, while the expression of extracellular matrix and associated mRNA was determined by ELISA assays and quantitative RT-PCR (qRT-PCR). The results showed the osteogenic effect of high frequency vibration treatment in the early stages of hASC differentiation (after 14 and 21days). On the contrary, no additional significant differences were observed after 28days cell culture. Transmission Electron Microscopy (TEM) images performed on 21day samples showed evidence of structured collagen fibers in the treated samples. All together, these results demonstrate the effectiveness of high frequency vibration treatment on hASC differentiation toward osteoblasts.
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Affiliation(s)
- D Prè
- Dipartimento di Informatica e Sistemistica, University of Pavia, Italy.
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21
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Saino E, Fassina L, Van Vlierberghe S, Avanzini M, Dubruel P, Magenes G, Visai L, Benazzo F. Effects of Electromagnetic Stimulation on Osteogenic Differentiation of Human Mesenchymal Stromal Cells Seeded onto Gelatin Cryogel. Int J Immunopathol Pharmacol 2011; 24:1-6. [DOI: 10.1177/03946320110241s201] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Bone tissue engineering typically uses biomaterial scaffolds, osteoblasts or cells that can become osteoblasts, and biophysical stimulations to promote cell attachment and differentiation. In this study, we investigated the effects of an electromagnetic wave on mesenchymal stromal cells isolated from the bone marrow and seeded upon gelatin cryogel disks. In comparison with control conditions without electromagnetic stimulus, the electromagnetic treatment (magnetic field, 2 mT; frequency, 75 Hz) increased the cell proliferation and differentiation and enhanced the biomaterial surface coating with bone extracellular matrix proteins. Using this tissue-engineering approach, the gelatin biomaterial, coated with differentiated cells and their extracellular matrix proteins, may be used in clinical applications as an implant for bone defect repair.
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Affiliation(s)
- E. Saino
- Dipartimento di Biochimica - Sez. Medicina e Farmacia, University of Pavia, Pavia, Italy
- Center for Tissue Engineering (C.I.T.), University of Pavia, Pavia, Italy
| | - L. Fassina
- Dipartimento di Informatica e Sistemistica, University of Pavia, Pavia, Italy
- Center for Tissue Engineering (C.I.T.), University of Pavia, Pavia, Italy
| | | | - M.A. Avanzini
- Oncoematologia Pediatrica, IRCCS San Matteo, University of Pavia, Pavia, Italy
| | - P. Dubruel
- Biomaterials Research Group, University of Ghent, Ghent, Belgium
| | - G. Magenes
- Dipartimento di Informatica e Sistemistica, University of Pavia, Pavia, Italy
- Center for Tissue Engineering (C.I.T.), University of Pavia, Pavia, Italy
| | - L. Visai
- Dipartimento di Biochimica - Sez. Medicina e Farmacia, University of Pavia, Pavia, Italy
- IRCCS Fondazione Salvatore Maugeri, Pavia, Italy
- International Centre for Studies and Research in Biomedicine (I.C.B.), Luxembourg
- Center for Tissue Engineering (C.I.T.), University of Pavia, Pavia, Italy
| | - F. Benazzo
- Dipartimento SMEC - Sez. Ortopedia e Traumatologia, IRCCS San Matteo, University of Pavia, Pavia, Italy
- Center for Tissue Engineering (C.I.T.), University of Pavia, Pavia, Italy
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Gastaldi G, Asti A, Scaffino MF, Visai L, Saino E, Cometa AM, Benazzo F. Human adipose-derived stem cells (hASCs) proliferate and differentiate in osteoblast-like cells on trabecular titanium scaffolds. J Biomed Mater Res A 2010; 94:790-9. [PMID: 20336739 DOI: 10.1002/jbm.a.32721] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The use of stem cells in regenerative medicine is an appealing area of research that has received a great deal of interest in recent years. The population called human adipose tissue-derived stem cells (hASCs) share many of the characteristic of its counterpart of marrow including extensive proliferative potential and the ability to undergo multilineage differentiation along classical mesenchymal lineages: adipogenesis, chondrogenesis, osteogenesis, and myogenesis. The aim of this study was to evaluate with biochemical and morphological methods the adhesion and differentiation of hASCs grown on trabecular titanium scaffolds. The hASCs isolated from subcutaneous adipose tissue after digestion with collagenase were seeded on monolayer and on trabecular titanium scaffolds and incubated at 37 degrees C in 5% CO(2) with osteogenic medium or control medium.The results showed that hASCs were able to adhere to titanium scaffolds, to proliferate, to acquire an osteoblastic-like phenotype, and to produce a calcified extracellular matrix with protein, such as, decorin, fibronectin, osteocalcin, osteonectin, osteopontin, and type I collagen. These data suggest that this kind of scaffold/cells construct is effective to regenerate damaged tissue and to restore the function of bone tissue.
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Low-power ultrasounds as a tool to culture human osteoblasts inside cancellous hydroxyapatite. Bioinorg Chem Appl 2010:456240. [PMID: 20379359 PMCID: PMC2850136 DOI: 10.1155/2010/456240] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 01/30/2010] [Indexed: 11/17/2022] Open
Abstract
Bone graft substitutes and cancellous biomaterials have been widely used to heal critical-size long bone defects due to trauma, tumor resection, and tissue degeneration. In particular, porous hydroxyapatite is widely used in reconstructive bone surgery owing to its biocompatibility. In addition, the in vitro modification of cancellous hydroxyapatite with osteogenic signals enhances the tissue regeneration in vivo, suggesting that the biomaterial modification could play an important role in tissue engineering. In this study, we have followed a tissue-engineering strategy where ultrasonically stimulated SAOS-2 human osteoblasts proliferated and built their extracellular matrix inside a porous hydroxyapatite scaffold. The ultrasonic stimulus had the following parameters: average power equal to 149 mW and frequency of 1.5 MHz. In comparison with control conditions, the ultrasonic stimulus increased the cell proliferation and the surface coating with bone proteins (decorin, osteocalcin, osteopontin, type-I collagen, and type-III collagen). The mechanical stimulus aimed at obtaining a better modification of the biomaterial internal surface in terms of cell colonization and coating with bone matrix. The modified biomaterial could be used, in clinical applications, as an implant for bone repair.
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