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Näf L, Miescher I, Pfuderer L, Schweizer TA, Brunner D, Dürig J, Gröninger O, Rieber J, Meier-Buergisser G, Spanaus K, Calcagni M, Bosshard PP, Achermann Y, Stark WJ, Buschmann J. Pro-angiogenic and antibacterial copper containing nanoparticles in PLGA/amorphous calcium phosphate bone nanocomposites. Heliyon 2024; 10:e27267. [PMID: 38486752 PMCID: PMC10937708 DOI: 10.1016/j.heliyon.2024.e27267] [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: 02/20/2024] [Accepted: 02/27/2024] [Indexed: 03/17/2024] Open
Abstract
Large bone defects after trauma demand for adequate bone substitutes. Bone void fillers should be antibacterial and pro-angiogenic. One viable option is the use of composite materials like the combination of PLGA and amorphous calcium phosphate (aCaP). Copper stimulates angiogenesis and has antibacterial qualities. Either copper oxide (CuO) nanoparticles (NPs) were therefore added to PLGA/aCaP/CuO in different concentrations (1, 5 and 10 w/w %) or copper-doped tricalcium phosphate NPs (TCP with 2% of copper) were electrospun into PLGA/CuTCP nanocomposites. Bi-layered nanocomposites of PLGA/aCaP with different copper NPs (CuO or TCP) and a second layer of pristine PLGA were fabricated. Two clinical bacterial isolates (Staphylococcus aureus and Staphylococcus epidermidis) were used to assess antibacterial properties of the copper-containing materials. For angiogenesis, the chorioallantoic membrane (CAM) assay of the chicken embryo was performed. The higher the CuO content, the higher were the antibacterial properties, with 10 % CuO reducing bacterial adhesion most effectively. Vessel and cell densities were highest in the 5 % CuO containing scaffolds, while tissue integration was more pronounced at lower CuO content. The PLGA/aCaP/CuO (1 % CuO) behaved similar like PLGA/CuTCP in all angiogenic and antibacterial readouts, based on the same copper fraction. We conclude that CuO NPs or CuTCP NPs are useful components to increase angiogenic properties of nanocomposites and at the same time exhibiting antibacterial characteristics.
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Affiliation(s)
- Lukas Näf
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Iris Miescher
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Lara Pfuderer
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Tiziano A. Schweizer
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - David Brunner
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Johannes Dürig
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Julia Rieber
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Gabriella Meier-Buergisser
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Katharina Spanaus
- Clinical Chemistry, University Hospital Zurich, 8001, Zurich, Switzerland
| | - Maurizio Calcagni
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Philipp P. Bosshard
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - Yvonne Achermann
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - Wendelin J. Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Johanna Buschmann
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
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Maita KC, Avila FR, Torres-Guzman RA, Sarabia-Estrada R, Zubair AC, Quinones-Hinojosa A, Forte AJ. In Vitro Enhanced Osteogenic Potential of Human Mesenchymal Stem Cells Seeded in a Poly (Lactic- co-Glycolic) Acid Scaffold: A Systematic Review. Craniomaxillofac Trauma Reconstr 2024; 17:61-73. [PMID: 38371215 PMCID: PMC10874209 DOI: 10.1177/19433875231157454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Abstract
Study Design Human bone marrow stem cells (hBMSCs) and human adipose-derived stem cells (hADSCs) have demonstrated the capability to regenerate bone once they have differentiated into osteoblasts. Objective This systematic review aimed to evaluate the in vitro osteogenic differentiation potential of these cells when seeded in a poly (lactic-co-glycolic) acid (PLGA) scaffold. Methods A literature search of 4 databases following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was conducted in January 2021 for studies evaluating the osteogenic differentiation potential of hBMSCs and hADSCs seeded in a PLGA scaffold. Only in vitro models were included. Studies in languages other than English were excluded. Results A total of 257 studies were identified after the removal of duplicates. Seven articles fulfilled our inclusion and exclusion criteria. Four of these reviews used hADSCs and three used hBMSCs in the scaffold. Upregulation in osteogenic gene expression was seen in all the cells seeded in a 3-dimensional scaffold compared with 2-dimensional films. High angiogenic gene expression was found in hADSCs. Addition of inorganic material to the scaffold material affected cell performance. Conclusions Viability, proliferation, and differentiation of cells strongly depend on the environment where they grow. There are several factors that can enhance the differentiation capacity of stem cells. A PLGA scaffold proved to be a biocompatible material capable of boosting the osteogenic differentiation potential and mineralization capacity in hBMSCs and hADSCs.
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Affiliation(s)
- Karla C. Maita
- Division of Plastic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | | | | | | | - Abba C. Zubair
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, USA
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Casanova EA, Rodriguez-Palomo A, Stähli L, Arnke K, Gröninger O, Generali M, Neldner Y, Tiziani S, Dominguez AP, Guizar-Sicairos M, Gao Z, Appel C, Nielsen LC, Georgiadis M, Weber FE, Stark W, Pape HC, Cinelli P, Liebi M. SAXS imaging reveals optimized osseointegration properties of bioengineered oriented 3D-PLGA/aCaP scaffolds in a critical size bone defect model. Biomaterials 2023; 294:121989. [PMID: 36628888 DOI: 10.1016/j.biomaterials.2022.121989] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/01/2022] [Accepted: 12/24/2022] [Indexed: 01/03/2023]
Abstract
Healing large bone defects remains challenging in orthopedic surgery and is often associated with poor outcomes and complications. A major issue with bioengineered constructs is achieving a continuous interface between host bone and graft to enhance biological processes and mechanical stability. In this study, we have developed a new bioengineering strategy to produce oriented biocompatible 3D PLGA/aCaP nanocomposites with enhanced osseointegration. Decellularized scaffolds -containing only extracellular matrix- or scaffolds seeded with adipose-derived mesenchymal stromal cells were tested in a mouse model for critical size bone defects. In parallel to micro-CT analysis, SAXS tensor tomography and 2D scanning SAXS were employed to determine the 3D arrangement and nanostructure within the critical-sized bone. Both newly developed scaffold types, seeded with cells or decellularized, showed high osseointegration, higher bone quality, increased alignment of collagen fibers and optimal alignment and size of hydroxyapatite minerals.
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Affiliation(s)
- Elisa A Casanova
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | | | - Lisa Stähli
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Kevin Arnke
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Melanie Generali
- Institute for Regenerative Medicine (IREM), Center for Therapy Development and Good Manufacturing Practice, University of Zurich, Zurich, Switzerland
| | - Yvonne Neldner
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Simon Tiziani
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Ana Perez Dominguez
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | | | - Zirui Gao
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Christian Appel
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Leonard C Nielsen
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
| | - Marios Georgiadis
- Department of Radiology, Stanford School of Medicine, Stanford, CA, USA
| | - Franz E Weber
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Wendelin Stark
- Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Hans-Christoph Pape
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Paolo Cinelli
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland; Center for Applied Biotechnology and Molecular Medicine (CABMM), University of Zurich, Zurich, Switzerland.
| | - Marianne Liebi
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden; Centre for X-ray Analytics, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
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4
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Bhushan S, Singh S, Maiti TK, Das A, Barui A, Chaudhari LR, Joshi MG, Dutt D. Cerium oxide nanoparticles disseminated chitosan gelatin scaffold for bone tissue engineering applications. Int J Biol Macromol 2023; 236:123813. [PMID: 36858088 DOI: 10.1016/j.ijbiomac.2023.123813] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/07/2023] [Accepted: 02/19/2023] [Indexed: 03/03/2023]
Abstract
Cell-free and cell-loaded constructs are used to bridge the critical-sized bone defect. Oxidative stress at the site of the bone defects is a major interference that slows bone healing. Recently, there has been an increase in interest in enhancing the properties of three-dimensional scaffolds with free radical scavenging materials. Cerium oxide nanoparticles (CNPs) can scavenge free radicals due to their redox-modulating property. In this study, freeze-drying was used to fabricate CG-CNPs nanocomposite scaffolds using gelatin (G), chitosan (C), and cerium oxide nanoparticles. Physico-chemical, mechanical, and biological characterization of CG-CNPs scaffolds were studied. CG-CNPs scaffolds demonstrated better results in terms of physicochemical, mechanical, and biological properties as compared to CG-scaffold. CG-CNPs scaffolds were cyto-friendly to MC3T3-E1 cells studied by performing in-vitro and in-ovo studies. The scaffold's antimicrobial study revealed high inhibition zones against Gram-positive and Gram-negative bacteria. With 79 % porosity, 45.99 % weight loss, 178.25 kPa compressive modulus, and 1.83 Ca/P ratio, the CG-CNP2 scaffold displays the best characteristics. As a result, the CG-CNP2 scaffolds are highly biocompatible and could be applied to repair bone defects.
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Affiliation(s)
- Sakchi Bhushan
- Department of Paper Technology, IIT Roorkee, Saharanpur 247001, India
| | - Sandhya Singh
- Department of Paper Technology, IIT Roorkee, Saharanpur 247001, India
| | - Tushar Kanti Maiti
- Department of Polymer and Process Engineering, IIT Roorkee, Saharanpur 247001, India
| | - Ankita Das
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India
| | - Ananya Barui
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India
| | - Leena R Chaudhari
- Department of Stem Cells and Regenerative Medicine, D.Y. Patil Education Society (Deemed to be University), Kolhapur, India
| | - Meghnad G Joshi
- Department of Stem Cells and Regenerative Medicine, D.Y. Patil Education Society (Deemed to be University), Kolhapur, India
| | - Dharm Dutt
- Department of Paper Technology, IIT Roorkee, Saharanpur 247001, India.
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5
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Oliinyk D, Eigenberger A, Felthaus O, Haerteis S, Prantl L. Chorioallantoic Membrane Assay at the Cross-Roads of Adipose-Tissue-Derived Stem Cell Research. Cells 2023; 12:cells12040592. [PMID: 36831259 PMCID: PMC9953848 DOI: 10.3390/cells12040592] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
With a history of more than 100 years of different applications in various scientific fields, the chicken chorioallantoic membrane (CAM) assay has proven itself to be an exceptional scientific model that meets the requirements of the replacement, reduction, and refinement principle (3R principle). As one of three extraembryonic avian membranes, the CAM is responsible for fetal respiration, metabolism, and protection. The model provides a unique constellation of immunological, vascular, and extracellular properties while being affordable and reliable at the same time. It can be utilized for research purposes in cancer biology, angiogenesis, virology, and toxicology and has recently been used for biochemistry, pharmaceutical research, and stem cell biology. Stem cells and, in particular, mesenchymal stem cells derived from adipose tissue (ADSCs) are emerging subjects for novel therapeutic strategies in the fields of tissue regeneration and personalized medicine. Because of their easy accessibility, differentiation profile, immunomodulatory properties, and cytokine repertoire, ADSCs have already been established for different preclinical applications in the files mentioned above. In this review, we aim to highlight and identify some of the cross-sections for the potential utilization of the CAM model for ADSC studies with a focus on wound healing and tissue engineering, as well as oncological research, e.g., sarcomas. Hereby, the focus lies on the combination of existing evidence and experience of such intersections with a potential utilization of the CAM model for further research on ADSCs.
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Affiliation(s)
- Dmytro Oliinyk
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
- Correspondence:
| | - Andreas Eigenberger
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
| | - Oliver Felthaus
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
| | - Silke Haerteis
- Institute for Molecular and Cellular Anatomy, Faculty for Biology and Preclinical Medicine, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Lukas Prantl
- Department of Plastic, Hand and Reconstructive Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
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Hybrid nanocomposite as a chest wall graft with improved vascularization by copper oxide nanoparticles. J Biomater Appl 2022; 36:1826-1837. [DOI: 10.1177/08853282211065624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Chest wall repair can be necessary after tumor resection or chest injury. In order to cover or replace chest wall defects, autologous tissue or different synthetic materials are commonly used, among them the semi-rigid gold standard Gore-Tex® and prolene meshes. Synthetic tissues include composite materials with an organic and an inorganic component. On the basis of previously reported hybrid nanocomposite poly-lactic-co-glycolic acid amorphous calcium phosphate nanocomposite (PLGA/aCaP), a CuO component was incorporated to yield (60%/35%/5%). This graft was tested in vitro by seeding with murine adipose-derived stem cells (ASCs) for cell attachment and migration. The graft was compared to PLGA/CaCO3 and PLGA/hydroxyapatite, each providing the inorganic phase as nanoparticles. Further characterization of the graft was performed using scanning electron microscopy. Furthermore, PLGA/aCaP/CuO was implanted as a chest wall graft in mice. After 4 weeks, total cell density, graft integration, extracellular matrix components such as fibronectin and collagen I, the cellular inflammatory response (macrophages, F4/80 and lymphocytes, CD3) as well as vascularization (CD31) were quantitatively assessed. The nanocomposite PLGA/aCaP/CuO showed a good cell attachment and cells migrated well into the pores of the electrospun meshes. Cell densities did not differ between PLGA/aCaP/CuO and PLGA/CaCO3 or PLGA/hydroxyapatite, respectively. When applied as a chest wall graft, adequate stability for suturing into the thoracic wall could be achieved. Four weeks post-implantation, there was an excellent tissue integration without relevant fibrotic changes and a predominating collagen I matrix deposition within the graft. Slightly increased inflammation, reflected by increased infiltration of macrophages could be observed. Vascularization of the graft was significantly enhanced when compared with PLGA/aCaP (no CuO). We conclude that the hybrid nanocomposite PLGA/aCaP/CuO is a viable option to be used as a chest wall graft. Surgical implantation of the material is feasible and provides stability and enough flexibility. Proper tissue integration and an excellent vascularization are characteristics of this biodegradable material.
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Guzmán-Oyarzo D, Hernández-Montelongo J, Rosas C, Leal P, Weber H, Alvear M, Salazar LA. Controlled Release of Caffeic Acid and Pinocembrin by Use of nPSi-βCD Composites Improves Their Antiangiogenic Activity. Pharmaceutics 2022; 14:pharmaceutics14030484. [PMID: 35335862 PMCID: PMC8955862 DOI: 10.3390/pharmaceutics14030484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022] Open
Abstract
Although polyphenols have great pharmacological potential, the main disadvantage is that they have low bioavailability at the desired site. Thus, the use of biocompatible systems for drug delivery is a strategy that is currently gaining great interest. The objective of this study is to evaluate the effect of microencapsulation of caffeic acid and pinocembrin on the antioxidant and antiangiogenic activity of both polyphenols, by the use of nPSi-βCD composite microparticles. For this HUVEC, cells were exposed to H2O2 and to treatments with polyphenols in solution and loaded in the composite microparticle. The polyphenols were incorporated into a microparticle using nanoporous silicon, chitosan and a β-cyclodextrin polymer as the biomaterial. The evaluation of the antiangiogenic effect of the treatments with polyphenols in solution and microencapsulated was carried out through functional tests, and the changes in the expression of target genes associated with the antioxidant pathway and angiogenesis was performed through qPCR. The results obtained show that the caffeic acid and pinocembrin have an antioxidant and antiangiogenic activity, both in solution as microencapsulated. In the caffeic acid, a greater biological effect was observed when it was incorporated into the nPSi-βCD composite microparticle. Our results suggest that the nPSi-βCD composite microparticle could be used as an alternative oral drug administration system.
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Affiliation(s)
- Dina Guzmán-Oyarzo
- Center of Molecular Biology and Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile;
- Escuela de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad San Sebastián, General Cruz 1577, Concepción 4030000, Chile
| | - Jacobo Hernández-Montelongo
- Bioproducts and Advanced Materials Research Center (BioMA), Faculty of Engineering, Universidad Católica de Temuco, Avenida Rudecindo Ortega 02950, Temuco 4813302, Chile;
- Department of Physical and Mathematical Sciences, Faculty of Engineering, Universidad Católica de Temuco, Temuco 4813302, Chile
| | - Carlos Rosas
- Escuela de Medicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, General Lagos 1163, Valdivia 5110693, Chile;
| | - Pamela Leal
- Center of Excellence in Translational Medicine (CETM) and Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4810296, Chile; (P.L.); (H.W.)
- Department of Agricultural Sciences and Natural Resources, Faculty of Agricultural and Forestry Science, Universidad de La Frontera, Temuco 4810296, Chile
| | - Helga Weber
- Center of Excellence in Translational Medicine (CETM) and Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4810296, Chile; (P.L.); (H.W.)
| | - Marysol Alvear
- Department of Chemical Sciences and Natural Resources, Faculty of Engineering and Sciences, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile;
| | - Luis A. Salazar
- Center of Molecular Biology and Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile;
- Correspondence: ; Tel.: +56-45-259-6724
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Adipose-Derived Stem Cell-Incubated HA-Rich Sponge Matrix Implant Modulates Oxidative Stress to Enhance VEGF and TGF-β Secretions for Extracellular Matrix Reconstruction In Vivo. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9355692. [PMID: 35082971 PMCID: PMC8786469 DOI: 10.1155/2022/9355692] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/20/2021] [Indexed: 12/11/2022]
Abstract
This study demonstrated both adipose-derived stem cells (ASCs) in vitro and in vivo combined with three-dimensional (3D) porous sponge matrices on implant wound healing. Sponge matrices were created from hyaluronic acid (HA), collagen (Col), and gelatin (Gel), constructing two types: HA-L (low content) and HA-H (high content), to be cross-linked with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC). Fourier transform infrared spectroscopy method verified carboxyl groups of HA and amino groups of Col and Gel reacting between the raw materials and scaffolds to identify the successive cross-linking. The swelling ratios of two types of sponge matrices were analyzed by water absorption capabilities, and the results displayed both over 30-fold dry scaffold weight enhancements. In biodegradation tests, matrices were hydrolyzed over time by three cutaneous enzymes, hyaluronidase, lysozyme, and collagenase I. ASCs from rats were cultured within the HA-H scaffold, demonstrating higher antioxidative abilities and secretions on related genes and proteins compared to the other two groups. The ASC HA-H matrix promoted cell proliferation to stimulate capillary angiogenesis inducer secretions, including vascular endothelial growth factor (VEGF) and transforming growth factor-β (TGF-β). In vivo histological examinations showed ASCs from implanted HA-H implant transported into the subcutis, and rat skin cells also infiltrated into the original matrix zone to increase the extracellular matrix (ECM) reconstructions. Our experimental data revealed that the ASC HA-H sponge implant was effective in improving wound repair.
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Impact of Electrospun Piezoelectric Core-Shell PVDFhfp/PDMS Mesh on Tenogenic and Inflammatory Gene Expression in Human Adipose-Derived Stem Cells: Comparison of Static Cultivation with Uniaxial Cyclic Tensile Stretching. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9010021. [PMID: 35049730 PMCID: PMC8772741 DOI: 10.3390/bioengineering9010021] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 12/29/2021] [Indexed: 02/06/2023]
Abstract
Specific microenvironments can trigger stem cell tenogenic differentiation, such as specific substrates or dynamic cell cultivation. Electrospun meshes composed by core–shell fibers (random or aligned; PDMS core; piezoelectric PVDFhfp shell) were fabricated by coaxial electrospinning. Elastic modulus and residual strain were assessed. Human ASCs were seeded on such scaffolds either under static conditions for 1 week or with subsequent 10% dynamic stretching for 10,800 cycles (1 Hz, 3 h), assessing load elongation curves in a Bose® bioreactor system. Gene expression for tenogenic expression, extracellular matrix, remodeling, pro-fibrotic and inflammatory marker genes were assessed (PCR). For cell-seeded meshes, the E modulus increased from 14 ± 3.8 MPa to 31 ± 17 MPa within 3 h, which was not observed for cell-free meshes. Random fibers resulted in higher tenogenic commitment than aligned fibers. Dynamic cultivation significantly enhanced pro-inflammatory markers. Compared to ASCs in culture flasks, ASCs on random meshes under static cultivation showed a significant upregulation of Mohawk, Tenascin-C and Tenomodulin. The tenogenic commitment expressed by human ASCs in contact with random PVDFhfp/PDMS paves the way for using this novel highly elastic material as an implant to be wrapped around a lacerated tendon, envisioned as a functional anti-adhesion membrane.
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Dorozhkin SV. Synthetic amorphous calcium phosphates (ACPs): preparation, structure, properties, and biomedical applications. Biomater Sci 2021; 9:7748-7798. [PMID: 34755730 DOI: 10.1039/d1bm01239h] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Amorphous calcium phosphates (ACPs) represent a metastable amorphous state of other calcium orthophosphates (abbreviated as CaPO4) possessing variable compositional but rather identical glass-like physical properties, in which there are neither translational nor orientational long-range orders of the atomic positions. In nature, ACPs of a biological origin are found in the calcified tissues of mammals, some parts of primitive organisms, as well as in the mammalian milk. Manmade ACPs can be synthesized in a laboratory by various methods including wet-chemical precipitation, in which they are the first solid phases, precipitated after a rapid mixing of aqueous solutions containing dissolved ions of Ca2+ and PO43- in sufficient amounts. Due to the amorphous nature, all types of synthetic ACPs appear to be thermodynamically unstable and, unless stored in dry conditions or doped by stabilizers, they tend to transform spontaneously to crystalline CaPO4, mainly to ones with an apatitic structure. This intrinsic metastability of the ACPs is of a great biological relevance. In particular, the initiating role that metastable ACPs play in matrix vesicle biomineralization raises their importance from a mere laboratory curiosity to that of a reasonable key intermediate in skeletal calcifications. In addition, synthetic ACPs appear to be very promising biomaterials both for manufacturing artificial bone grafts and for dental applications. In this review, the current knowledge on the occurrence, structural design, chemical composition, preparation, properties, and biomedical applications of the synthetic ACPs have been summarized.
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Suspension of Amorphous Calcium Phosphate Nanoparticles Impact Commitment of Human Adipose-Derived Stem Cells In Vitro. BIOLOGY 2021; 10:biology10070675. [PMID: 34356530 PMCID: PMC8301486 DOI: 10.3390/biology10070675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 07/14/2021] [Indexed: 12/18/2022]
Abstract
Amorphous calcium phosphate (aCaP) nanoparticles may trigger the osteogenic commitment of adipose-derived stem cells (ASCs) in vitro. The ASCs of three human donors are investigated using basal culture medium DMEM to either 5 or 50 µg/mL aCaP nanoparticles suspension (control: no nanoparticles). After 7 or 14 days, stem cell marker genes, as well as endothelial, osteogenic, chondrogenic, and adipogenic genes, are analyzed by qPCR. Free calcium and phosphate ion concentrations are assessed in the cell culture supernatant. After one week and 5 µg/mL aCaP, downregulation of osteogenic markers ALP and Runx2 is found, and averaged across the three donors. Our results show that after two weeks, ALP is further downregulated, but Runx2 is upregulated. Endothelial cell marker genes, such as CD31 and CD34, are upregulated with 50 µg/mL aCaP and a 2-week exposure. Inter-donor variability is high: Two out of three donors show a significant upregulation of ALP and Runx2 at day 14 with 50 µg/mL aCaP compared to 5 µg/mL aCaP. Notably, all changes in stem cell commitment are obtained in the absence of an osteogenic medium. While the chemical composition of the culture medium and the saturation status towards calcium phosphate phases remain approximately the same for all conditions, gene expression of ASCs changes considerably. Hence, aCaP nanoparticles show the potential to trigger osteogenic and endothelial commitment in ASCs.
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Sarvari R, Nouri M, Agbolaghi S, Roshangar L, Sadrhaghighi A, Seifalian AM, Keyhanvar P. A summary on non-viral systems for gene delivery based on natural and synthetic polymers. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1825081] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Raana Sarvari
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell And Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samira Agbolaghi
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Laila Roshangar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhouman Sadrhaghighi
- Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alexander M. Seifalian
- Nanotechnology and Regenerative Medicine Commercialization Centre (Ltd), The London Innovation Bio Science Centre, London, UK
| | - Peyman Keyhanvar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Nanotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Convergence of Knowledge, Technology and Society Network (CKTSN), Universal Scientific Education and Research Network (USERN), Tabriz, Iran
- ARTAN110 Startup Accelerator, Tabriz, Iran
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The use of the chick embryo CAM assay in the study of angiogenic activiy of biomaterials. Microvasc Res 2020; 131:104026. [PMID: 32505611 DOI: 10.1016/j.mvr.2020.104026] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/30/2020] [Accepted: 06/03/2020] [Indexed: 02/08/2023]
Abstract
The chick embryo chorioallantoic membrane (CAM) is a highly vascularized extraembryonic membrane, which carries out several functions during embryonic development, including exchange of respiratory gases, calcium transport from the eggshell, acid-base homeostasis in the embryo, and ion and water reabsorption from the allantoic fluid. Due to its easy accessibility, affordability and given that it constitutes an immunodeficient environment, CAM has been used as an experimental model for >50 years and in particular it has been broadly used to study angiogenesis and anti-angiogenesis. This review article describes the use of the CAM assay as a valuable assay to test angiogenic activity of biomaterials in vivo before they are further investigated in animal models. In this context, the use of CAM has become an integral part of the biocompatibility testing process for developing potential biomaterials.
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Directing Stem Cell Commitment by Amorphous Calcium Phosphate Nanoparticles Incorporated in PLGA: Relevance of the Free Calcium Ion Concentration. Int J Mol Sci 2020; 21:ijms21072627. [PMID: 32283864 PMCID: PMC7177725 DOI: 10.3390/ijms21072627] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/01/2020] [Accepted: 04/07/2020] [Indexed: 12/17/2022] Open
Abstract
The microenvironment of mesenchymal stem cells (MSCs) is responsible for the modulation in MSC commitment. Nanocomposites with an inorganic and an organic component have been investigated, and osteogenesis of MSCs has been attributed to inorganic phases such as calcium phosphate under several conditions. Here, electrospun meshes and two-dimensional films of poly(lactic-co-glycolic acid) (PLGA) or nanocomposites of PLGA and amorphous calcium phosphate nanoparticles (PLGA/aCaP) seeded with human adipose-derived stem cells (ASCs) were analyzed for the expression of selected marker genes. In a two-week in vitro experiment, osteogenic commitment was not found to be favored on PLGA/aCaP compared to pure PLGA. Analysis of the medium revealed a significant reduction of the Ca2+ concentration when incubated with PLGA/aCaP, caused by chemical precipitation of hydroxyapatite (HAp) on aCaP seeds of PLGA/aCaP. Upon offering a constant Ca2+ concentration, however, the previously observed anti-osteogenic effect was reversed: alkaline phosphatase, an early osteogenic marker gene, was upregulated on PLGA/aCaP compared to pristine PLGA. Hence, in addition to the cell–material interaction, the material–medium interaction was also important for the stem cell commitment here, affecting the cell–medium interaction. Complex in vitro models should therefore consider all factors, as coupled impacts might emerge.
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Schneider I, Baumgartner W, Gröninger O, Stark WJ, Märsmann S, Calcagni M, Cinelli P, Wolint P, Buschmann J. 3D microtissue-derived human stem cells seeded on electrospun nanocomposites under shear stress: Modulation of gene expression. J Mech Behav Biomed Mater 2019; 102:103481. [PMID: 31678737 DOI: 10.1016/j.jmbbm.2019.103481] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/17/2019] [Accepted: 10/08/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Different microenvironments trigger distinct differentiation of stem cells. Even without chemical supplementation, mechanical stimulation by shear stress may help to induce the desired differentiation. The cell format, such as three-dimensional (3D) microtissues (MTs), MT-derived cells or single cells (SCs), may have a pivotal impact as well. Here, we studied modulation of gene expression in human adipose-derived stem cells (ASCs) exposed to shear stress and/or after MT formation. MATERIALS AND METHODS Electrospun meshes of poly-lactic-co-glycolic acid and amorphous calcium phosphate nanoparticles (PLGA/aCaP) at a weight ratio of 60:40 were seeded with human ASCs as MTs or as SCs and cultured in Dulbecco's modified Eagle's medium without chemical supplementation. After 2 weeks of static culture, the scaffolds were cultured statically for another 2 weeks or placed in a Bose® bioreactor with a flow rate per area of 0.16 mL cm-2 min-1. Stiffness of the scaffolds was assessed as a function of time. After 4 weeks, minimum stem cell criteria markers and selected markers of osteogenesis, endothelial cell differentiation, adipogenesis and chondrogenesis were analysed by quantitative real-time polymerase chain reaction. Additionally, cell distribution within the scaffolds and the allocation of the yes-associated protein (YAP) in the cells were assessed by immunohistochemistry. RESULTS MTs decayed completely within 2 weeks after seeding on PLGA/aCaP. The osteogenic marker gene alkaline phosphatase and the endothelial cell marker gene CD31 were upregulated in MT-derived ASCs compared with SCs. Shear stress realised by fluid flow perfusion upregulated peroxisome proliferator-activated receptor gamma 2 expression in MT-derived ASCs and in SCs. The nuclear-to-cytoplasmic ratio of YAP expression was doubled under perfusion compared with that under static culture for MT-derived ASCs and SCs. CONCLUSIONS Osteogenic and angiogenic commitments were more pronounced in MT-derived ASCs seeded on bone biomimetic electrospun nanocomposite PLGA/aCaP than in SCs seeded without induction medium. Furthermore, the static culture was superior to the perfusion regimen used here, as shear stress resulted in adipogenic commitment for MT-derived ASCs and SCs, although the YAP nuclear-to-cytoplasmic ratio indicated higher cell tensions under perfusion, usually associated with preferred osteogenic differentiation.
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Affiliation(s)
- Isabelle Schneider
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Walter Baumgartner
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Wendelin J Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Sonja Märsmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland; Division of Trauma Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Maurizio Calcagni
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Paolo Cinelli
- Division of Trauma Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Petra Wolint
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Johanna Buschmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland.
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Kunisch E, Gunnella F, Wagner S, Dees F, Maenz S, Bossert J, Jandt KD, Kinne RW. The poly (l-lactid-co-glycolide; PLGA) fiber component of brushite-forming calcium phosphate cement induces the osteogenic differentiation of human adipose tissue-derived stem cells. ACTA ACUST UNITED AC 2019; 14:055012. [PMID: 31465298 DOI: 10.1088/1748-605x/ab3544] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A brushite-forming calcium phosphate cement (CPC) was mechanically stabilized by addition of poly (l-lactid-co-glycolide; PLGA) fibers (≤10% w/w). It proved highly biocompatible and its fiber component enhanced bone formation in a sheep lumbar vertebroplasty model. However, possible effects on the osteogenic differentiation of resident mesenchymal stem cells (MSCs) remained unexplored. The present study used a novel approach, simultaneously analyzing the influence of a solid CPC scaffold and its relatively low PLGA proportion (a mimicry of natural bone) on osteogenic, chondrogenic, and adipogenic differentiation, as well as the pluripotency of human adipose tissue-derived mesenchymal stem cells (hASCs). hASCs were cultured on CPC discs with/without PLGA fibers (5% and 10%) in the absence of osteogenic medium for 3, 7, and 14 d. Gene expression of osteogenic markers (Runx2, osterix, alkaline phosphatase, collagen I, osteonectin, osteopontin, osteocalcin), chondrogenic markers (collagen II, Sox9, aggrecan), adipogenic markers (PPARG, Leptin, and FABP4), and pluripotency markers (Nanog, Tert, Rex) was analyzed by RT-PCR. The ability of hASCs to synthesize alkaline phosphatase was also evaluated. Cell number and viability were determined by fluorescein diacetate/propidium iodide staining. Compared to pure CPC, cultivation of hASCs on fiber-reinforced CPC transiently induced the gene expression of Runx2 and osterix (day 3), and long-lastingly augmented the expression of alkaline phosphatase (and its enzyme activity), collagen I, and osteonectin (until day 14). In contrast, augmented expression of all chondrogenic, adipogenic, and pluripotency markers was limited to day 3, followed by significant downregulation. Cultivation of hASCs on fiber-reinforced CPC reduced the cell number, but not the proportion of viable cells (viability > 95%). The PLGA component of fiber-reinforced, brushite-forming CPC supports long-lasting osteogenic differentiation of hASCs, whereas chondrogenesis, adipogenesis, and pluripotency are initially augmented, but subsequently suppressed. In view of parallel animal results, PLGA fibers may represent an interesting clinical target for future improvement of CPC- based bone regeneration.
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Affiliation(s)
- Elke Kunisch
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
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Buschmann J, Yamada Y, Schulz-Schönhagen K, Hess SC, Stark WJ, Opelz C, Bürgisser GM, Weder W, Jungraithmayr W. Hybrid nanocomposite as a chest wall graft with improved integration by adipose-derived stem cells. Sci Rep 2019; 9:10910. [PMID: 31358841 PMCID: PMC6662805 DOI: 10.1038/s41598-019-47441-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 07/15/2019] [Indexed: 02/07/2023] Open
Abstract
Surgery of the chest wall is potentially required to cover large defects after removal of malignant tumours. Usually, inert and non-degradable Gore-Tex serves to replace the missing tissue. However, novel biodegradable materials combined with stem cells are available that stimulate the healing. Based on poly-lactic-co-glycolic acid and amorphous calcium phosphate nanoparticles (PLGA/aCaP) and pure PLGA, a dual layer biodegradable hybrid nanocomposite was generated. Mouse adipose-derived stem cells were cultered on electrospun disks (ASCs of C57BL/6), and biomechanical tests were performed. The cell-seeded scaffolds were engrafted in C57BL/LY5.1 mice to serve as a chest wall substitute. Cell invasion into the bi-layered material, extent of CD45+ cells, inflammatory response, neo-vascularization and ECM composition were determined at 1 and 2 months post-surgery, respectively. The bi-layered hybrid nanocomposite was stable after a 2-week in vitro culture, in contrast to PLGA/aCaP without a PLGA layer. There was a complete biointegration and good vascularization in vivo. The presence of ASCs attracted more CD45+ cells (hematopoietic origin) compared to cell-free scaffolds. Inflammatory reaction was similar for both groups (±ASCs) at 8 weeks. A bi-layered hybrid nanocomposite fabricated of electrospun PLGA/aCaP and a reinforcing layer of pristine PLGA is an ideal scaffold for chest wall reconstruction. It is stable and allows a proper host tissue integration. If ASCs are seeded, they attract more CD45+ cells, supporting the regeneration process.
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Affiliation(s)
- Johanna Buschmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Zurich, Switzerland.
| | - Yoshito Yamada
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Konstantin Schulz-Schönhagen
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Samuel C Hess
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Wendelin J Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Christine Opelz
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | | | - Walter Weder
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Wolfgang Jungraithmayr
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland.,Department of Thoracic Surgery, University Hospital Rostock, Rostock, Germany
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Zhang X, Lin X, Liu T, Deng L, Huang Y, Liu Y. Osteogenic Enhancement Between Icariin and Bone Morphogenetic Protein 2: A Potential Osteogenic Compound for Bone Tissue Engineering. Front Pharmacol 2019; 10:201. [PMID: 30914948 PMCID: PMC6423068 DOI: 10.3389/fphar.2019.00201] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/18/2019] [Indexed: 11/16/2022] Open
Abstract
Icariin, a typical flavonol glycoside, is the main active component of Herba Epimedii, which was used to cure bone-related diseases in China for centuries. It has been reported that Icariin can be delivered locally by biomaterials and it has an osteogenic potential for bone tissue engineering. Biomimetic calcium phosphate (BioCaP) bone substitute is a novel drug delivery carrier system. Our study aimed to evaluate the osteogenic potential when Icariin was internally incorporated into the BioCaP granules. The BioCaP combined with Icariin and bone morphogenetic protein 2 (BMP-2) was investigated in vitro using an MC3T3-E1 cell line. We also investigated its efficacy to repair 8 mm diameter critical size bone defects in the skull of SD male rats. BioCaP was fabricated according to a well-established biomimetic mineralization process. In vitro, the effects of BioCaP alone or BioCaP with Icariin and/or BMP-2 on cell proliferation and osteogenic differentiation of MC3T3-E1 cells were systematically evaluated. In vivo, BioCaP alone or BioCaP with Icariin and/or BMP-2 were used to study the bone formation in a critical-sized bone defect created in a rat skull. Samples were retrieved for Micro-CT and histological analysis 12 weeks after surgery. The results indicated that BioCaP with or without the incorporation of Icariin had a positive effect on the osteogenic differentiation of MC3T3-E1. BioCaP with Icariin had better osteogenic efficiency, but had no influence on cell proliferation. BioCap + Icariin + BMP-2 showed better osteogenic potential compared with BioCaP with BMP-2 alone. The protein and mRNA expression of alkaline phosphatase and osteocalcin and mineralization were higher as well. In vivo, BioCaP incorporate internally with both Icariin and BMP-2 induced significantly more newly formed bone than the control group and BioCaP with either Icariin or BMP-2 did. Micro-CT analysis revealed that no significant differences were found between the bone mineral density induced by BioCaP with icariin and that induced by BioCaP with BMP-2. Therefore, co-administration of Icariin and BMP-2 was helpful for bone tissue engineering.
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Affiliation(s)
- Xin Zhang
- Department of Periodontics, Hospital/School of Stomatology, Zhejiang University, Hangzhou, China.,ACTA, Department of Oral Implantology and Prosthetic Dentistry, Research Institute, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan, Netherlands
| | - Xingnan Lin
- Department of Orthodontics, Nanjing Stomatological Hospital, Nanjing University Medical School, Nanjing, China
| | - Tie Liu
- Department of Oral Implantology, Hospital/School of Stomatology, Zhejiang University, Hangzhou, China.,ACTA, Department of Oral Implantology and Prosthetic Dentistry, Research Institute, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan, Netherlands
| | - Liquan Deng
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou Dental Hospital, Hangzhou, China
| | - Yuanliang Huang
- Department of Dentistry, Shanghai East Hospital Affiliated to Tongji University, Shanghai, China
| | - Yuelian Liu
- ACTA, Department of Oral Implantology and Prosthetic Dentistry, Research Institute, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan, Netherlands
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Baumgartner W, Otto L, Hess SC, Stark WJ, Märsmann S, Bürgisser GM, Calcagni M, Cinelli P, Buschmann J. Cartilage/bone interface fabricated under perfusion: Spatially organized commitment of adipose‐derived stem cells without medium supplementation. J Biomed Mater Res B Appl Biomater 2018; 107:1833-1843. [DOI: 10.1002/jbm.b.34276] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 09/27/2018] [Accepted: 10/17/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Walter Baumgartner
- Division of Plastic and Hand SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
| | - Lukas Otto
- Division of Plastic and Hand SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
| | - Samuel C. Hess
- Institute for Chemical‐ and BioengineeringDepartment of Chemistry and Applied Biosciences ETH Zürich, Zürich Switzerland
| | - Wendelin J. Stark
- Institute for Chemical‐ and BioengineeringDepartment of Chemistry and Applied Biosciences ETH Zürich, Zürich Switzerland
| | - Sonja Märsmann
- Division of Plastic and Hand SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
- Division of Trauma SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
| | | | - Maurizio Calcagni
- Division of Plastic and Hand SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
| | - Paolo Cinelli
- Division of Trauma SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
| | - Johanna Buschmann
- Division of Plastic and Hand SurgeryUniversity Hospital Zürich ZKF, Zürich Switzerland
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Li W, Yang X, Feng S, Yang S, Zeng R, Tu M. The fabrication of biomineralized fiber-aligned PLGA scaffolds and their effect on enhancing osteogenic differentiation of UCMSC cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:117. [PMID: 30027312 DOI: 10.1007/s10856-018-6114-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 06/19/2018] [Indexed: 06/08/2023]
Abstract
The key factor of scaffold design for bone tissue engineering is to mimic the microenvironment of natural bone extracellular matrix (ECM) and guide cell osteogenic differentiation. The biomineralized fiber-aligned PLGA scaffolds (a-PLGA/CaPs) was developed in this study by mimicking the structure and composition of native bone ECM. The aligned PLGA fibers was prepared by wet spinning and then biomineralized via an alternate immersion method. Introduction of a bioceramic component CaP onto the PLGA fibers led to changes in surface roughness and hydrophilicity, which showed to modulate cell adhesion and cell morphology of umbilical cord mesenchymal stem cells (UCMSCs). It was found that organized actin filaments of UCMSCs cultured on both a-PLGA and a-PLGA/CaP scaffolds appeared to follow contact guidance along the aligned fibers, and those cells grown on a-PLGA/CaP scaffolds exhibited a more polarized cellular morphology. The a-PLGA/CaP scaffold with multicycles of mineralization facilitated the cell attachment on the fiber surfaces and then supported better cell adhesion and contact guidance, leading to enhancement in following proliferation and osteogenic differentiation of UCMSCs. Our results give some insights into the regulation of cell behaviors through design of ECM-mimicking structure and composition and provide an alternative wet-spun fiber-aligned scaffold with HA-mineralized layer for bone tissue engineering application.
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Affiliation(s)
- Wenqiang Li
- Department of Material Science and Engineering, Jinan University, Guangzhou, 510632, People's Republic of China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xiaohui Yang
- Department of Material Science and Engineering, Jinan University, Guangzhou, 510632, People's Republic of China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Shanbao Feng
- Department of Material Science and Engineering, Jinan University, Guangzhou, 510632, People's Republic of China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Shenyu Yang
- Department of Material Science and Engineering, Jinan University, Guangzhou, 510632, People's Republic of China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Rong Zeng
- Department of Material Science and Engineering, Jinan University, Guangzhou, 510632, People's Republic of China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Mei Tu
- Department of Material Science and Engineering, Jinan University, Guangzhou, 510632, People's Republic of China.
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou, 510632, People's Republic of China.
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Baumgartner W, Schneider I, Hess SC, Stark WJ, Märsmann S, Brunelli M, Calcagni M, Cinelli P, Buschmann J. Cyclic uniaxial compression of human stem cells seeded on a bone biomimetic nanocomposite decreases anti-osteogenic commitment evoked by shear stress. J Mech Behav Biomed Mater 2018; 83:84-93. [DOI: 10.1016/j.jmbbm.2018.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/16/2018] [Accepted: 04/03/2018] [Indexed: 01/01/2023]
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Wu P, Chen H, Jin R, Weng T, Ho JK, You C, Zhang L, Wang X, Han C. Non-viral gene delivery systems for tissue repair and regeneration. J Transl Med 2018; 16:29. [PMID: 29448962 PMCID: PMC5815227 DOI: 10.1186/s12967-018-1402-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/07/2018] [Indexed: 12/11/2022] Open
Abstract
Critical tissue defects frequently result from trauma, burns, chronic wounds and/or surgery. The ideal treatment for such tissue loss is autografting, but donor sites are often limited. Tissue engineering (TE) is an inspiring alternative for tissue repair and regeneration (TRR). One of the current state-of-the-art methods for TRR is gene therapy. Non-viral gene delivery systems (nVGDS) have great potential for TE and have several advantages over viral delivery including lower immunogenicity and toxicity, better cell specificity, better modifiability, and higher productivity. However, there is no ideal nVGDS for TRR, hence, there is widespread research to improve their properties. This review introduces the basic principles and key aspects of commonly-used nVGDSs. We focus on recent advances in their applications, current challenges, and future directions.
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Affiliation(s)
- Pan Wu
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Haojiao Chen
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Ronghua Jin
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Tingting Weng
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Jon Kee Ho
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Chuangang You
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Liping Zhang
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Xingang Wang
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China.
| | - Chunmao Han
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China.
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Navarro-Requena C, Weaver JD, Clark AY, Clift DA, Pérez-Amodio S, Castaño Ó, Zhou DW, García AJ, Engel E. PEG hydrogel containing calcium-releasing particles and mesenchymal stromal cells promote vessel maturation. Acta Biomater 2018; 67:53-65. [PMID: 29246650 PMCID: PMC6534820 DOI: 10.1016/j.actbio.2017.12.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/23/2017] [Accepted: 12/05/2017] [Indexed: 12/20/2022]
Abstract
The use of human mesenchymal stromal cells (hMSC) for treating diseased tissues with poor vascularization has received significant attention, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have also been suggested as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. In this study, calcium-releasing particles and hMSC were combined within a hydrogel to examine their vasculogenic potential in vitro and in vivo. The particles provided sustained calcium release and showed proangiogenic stimulation in a chorioallantoic membrane (CAM) assay. The number of hMSC encapsulated in a degradable RGD-functionalized PEG hydrogel containing particles remained constant over time and IGF-1 release was increased. When implanted in the epidydimal fat pad of immunocompromised mice, this composite material improved cell survival and stimulated vessel formation and maturation. Thus, the combination of hMSC and calcium-releasing glass-ceramics represents a new strategy to achieve vessel stabilization, a key factor in the revascularization of ischemic tissues. STATEMENT OF SIGNIFICANCE Increasing blood vessel formation in diseased tissues with poor vascularization is a current clinical challenge. Cell therapy using human mesenchymal stem cells has received considerable interest, but low cell survival has hampered its translation to the clinic. Bioglasses and glass-ceramics have been explored as therapeutic agents for stimulating angiogenesis in soft tissues, but these effects need further evaluation in vivo. By incorporating both human mesenchymal stem cells and glass-ceramic particles in an implantable hydrogel, this study provides insights into the vasculogenic potential in soft tissues of the combined strategies. Enhancement of vessel formation and maturation supports further investigation of this strategy.
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Affiliation(s)
- Claudia Navarro-Requena
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
| | - Jessica D Weaver
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Amy Y Clark
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Douglas A Clift
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain
| | - Soledad Pérez-Amodio
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
| | - Óscar Castaño
- Electronics and Biomedical Engineering, Universitat de Barcelona (UB), Barcelona 08028, Spain; Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; Institute of Nanoscience and Nanotechnology, Universitat de Barcelona (UB), Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain
| | - Dennis W Zhou
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Andrés J García
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain; Materials Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
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Moreno-Jiménez I, Kanczler JM, Hulsart-Billstrom G, Inglis S, Oreffo RO. The Chorioallantoic Membrane Assay for Biomaterial Testing in Tissue Engineering: A Short-TermIn VivoPreclinical Model. Tissue Eng Part C Methods 2017; 23:938-952. [DOI: 10.1089/ten.tec.2017.0186] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Inés Moreno-Jiménez
- Bone and Joint Research Group, Faculty of Medicine, Institute of Developmental Sciences, Center for Human Development, Stem Cells and Regeneration, Human Development and Health, University of Southampton, Southampton, United Kingdom
| | - Janos M. Kanczler
- Bone and Joint Research Group, Faculty of Medicine, Institute of Developmental Sciences, Center for Human Development, Stem Cells and Regeneration, Human Development and Health, University of Southampton, Southampton, United Kingdom
| | - Gry Hulsart-Billstrom
- Bone and Joint Research Group, Faculty of Medicine, Institute of Developmental Sciences, Center for Human Development, Stem Cells and Regeneration, Human Development and Health, University of Southampton, Southampton, United Kingdom
| | - Stefanie Inglis
- Bone and Joint Research Group, Faculty of Medicine, Institute of Developmental Sciences, Center for Human Development, Stem Cells and Regeneration, Human Development and Health, University of Southampton, Southampton, United Kingdom
| | - Richard O.C. Oreffo
- Bone and Joint Research Group, Faculty of Medicine, Institute of Developmental Sciences, Center for Human Development, Stem Cells and Regeneration, Human Development and Health, University of Southampton, Southampton, United Kingdom
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25
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Buschmann J, Balli E, Hess SC, Stark WJ, Cinelli P, Märsmann S, Welti M, Weder W, Jungraithmayr W. Effects of seeding adipose-derived stem cells on electrospun nanocomposite used as chest wall graft in a murine model. Injury 2017; 48:2080-2088. [PMID: 28842288 DOI: 10.1016/j.injury.2017.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 08/02/2017] [Indexed: 02/02/2023]
Abstract
Malignant neoplasms infiltrating the chest wall often requires resection of the thoracic wall. To replace the defect, Gore-Tex® is usually employed as the gold standard material, however, Gore-Tex® is inert and not degradable. Novel materials are nowadays available which allow a full bio-integration due to their non-toxic degradability. Additionally, stem cell seeding has the capacity to reduce inflammatory response towards such grafts, thus integrating it better into the host organism.
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Affiliation(s)
- Johanna Buschmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Switzerland.
| | - Eleni Balli
- Division of Plastic and Hand Surgery, University Hospital Zurich, Switzerland
| | - Samuel C Hess
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Wendelin J Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Paolo Cinelli
- Division of Trauma Surgery, University Hospital Zurich, Switzerland
| | - Sonja Märsmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Switzerland; Division of Trauma Surgery, University Hospital Zurich, Switzerland
| | - Manfred Welti
- Division of Plastic and Hand Surgery, University Hospital Zurich, Switzerland; Division of Thoracic Surgery, University Hospital Zurich, Switzerland
| | - Walter Weder
- Division of Thoracic Surgery, University Hospital Zurich, Switzerland
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26
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Cvikl B, Hess SC, Miron RJ, Agis H, Bosshardt D, Attin T, Schmidlin PR, Lussi A. Response of human dental pulp cells to a silver-containing PLGA/TCP-nanofabric as a potential antibacterial regenerative pulp-capping material. BMC Oral Health 2017; 17:57. [PMID: 28241819 PMCID: PMC5327548 DOI: 10.1186/s12903-017-0348-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 02/14/2017] [Indexed: 12/11/2022] Open
Abstract
Background Damage or exposure of the dental pulp requires immediate therapeutic intervention. Methods This study assessed the biocompatibility of a silver-containing PLGA/TCP-nanofabric scaffold (PLGA/Ag-TCP) in two in vitro models, i.e. the material adapted on pre-cultured cells and cells directly cultured on the material, respectively. Collagen saffolds with and without hyaluronan acid (Coll-HA; Coll) using both cell culturing methods and cells growing on culture plates served as reference. Cell viability and proliferation were assessed after 24, 48, and 72 h based on formazan formation and BrdU incorporation. Scaffolds were harvested. Gene expression of interleukin(IL)-6, tumor necrosis factor (TNF)-alpha, and alkaline phosphatase (AP) was assessed 24 h after stimulation. Results In both models formazan formation and BrdU incorporation was reduced by PLGA/Ag-TCP on dental pulp cells, while no significant reduction was found in cells with Coll and Coll-HA. Cells with PLGA/Ag-TCP for 72 h showed similar relative BrdU incorporation than cells stimulated with Coll and Coll-HA. A prominent increase in the pro-inflammatory genes IL-6 and TNF-α was observed when cells were cultured with PLGA/Ag-TCP compared to the other groups. This increase was parallel with a slight increase in AP expression. Overall, no differences between the two culture methods were observed. Conclusions PLGA/Ag-TCP decreased viability and proliferation rate of human dental pulp cells and increased the pro-inflammatory capacity and alkaline phosphatase expression. Whether these cellular responses observed in vitro translate into pulp regeneration in vivo will be assessed in further studies.
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Affiliation(s)
- Barbara Cvikl
- Department of Preventive, Restorative and Pediatric Dentistry, School of Dentistry, University of Bern, Bern, Switzerland.,Department of Conservative Dentistry & Periodontology, Medical University of Vienna, Vienna, Austria
| | - Samuel C Hess
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Richard J Miron
- Department of Preventive, Restorative and Pediatric Dentistry, School of Dentistry, University of Bern, Bern, Switzerland.,Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Hermann Agis
- Department of Conservative Dentistry & Periodontology, Medical University of Vienna, Vienna, Austria
| | - Dieter Bosshardt
- Robert K. Schenk Laboratory of Oral Histology, Department of Periodontology, Department of Oral Surgery and Stomatology, University of Bern, Bern, Switzerland
| | - Thomas Attin
- Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, Zurich, CH-8032, Switzerland
| | - Patrick R Schmidlin
- Department of Preventive, Restorative and Pediatric Dentistry, School of Dentistry, University of Bern, Bern, Switzerland. .,Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, Zurich, CH-8032, Switzerland.
| | - Adrian Lussi
- Department of Preventive, Restorative and Pediatric Dentistry, School of Dentistry, University of Bern, Bern, Switzerland
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27
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Yang HY, Niu LN, Sun JL, Huang XQ, Pei DD, Huang C, Tay FR. Biodegradable mesoporous delivery system for biomineralization precursors. Int J Nanomedicine 2017; 12:839-854. [PMID: 28182119 PMCID: PMC5279816 DOI: 10.2147/ijn.s128792] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Scaffold supplements such as nanoparticles, components of the extracellular matrix, or growth factors have been incorporated in conventional scaffold materials to produce smart scaffolds for tissue engineering of damaged hard tissues. Due to increasing concerns on the clinical side effects of using large doses of recombinant bone-morphogenetic protein-2 in bone surgery, it is desirable to develop an alternative nanoscale scaffold supplement that is not only osteoinductive, but is also multifunctional in that it can perform other significant bone regenerative roles apart from stimulation of osteogenic differentiation. Because both amorphous calcium phosphate (ACP) and silica are osteoinductive, a biodegradable, nonfunctionalized, expanded-pore mesoporous silica nanoparticle carrier was developed for loading, storage, and sustained release of a novel, biosilicification-inspired, polyamine-stabilized liquid precursor phase of ACP for collagen biomineralization and for release of orthosilicic acid, both of which are conducive to bone growth. Positively charged poly(allylamine)-stabilized ACP (PAH-ACP) could be effectively loaded and released from nonfunctionalized expanded-pore mesoporous silica nanoparticles (pMSN). The PAH-ACP released from loaded pMSN still retained its ability to infiltrate and mineralize collagen fibrils. Complete degradation of pMSN occurred following unloading of their PAH-ACP cargo. Because PAH-ACP loaded pMSN possesses relatively low cytotoxicity to human bone marrow-derived mesenchymal stem cells, these nanoparticles may be blended with any osteoconductive scaffold with macro- and microporosities as a versatile scaffold supplement to enhance bone regeneration.
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Affiliation(s)
- Hong-ye Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology, Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Li-na Niu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jin-long Sun
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Xue-qing Huang
- Department of Prosthodontics, Guanghua School and Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Yat-sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Dan-dan Pei
- Department of Prosthodontics, College of Stomatology, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Cui Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology, Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Franklin R Tay
- Department of Endodontics, College of Dental Medicine, Augusta University, Augusta, GA, USA
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28
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Wang G, Roohani-Esfahani SI, Zhang W, Lv K, Yang G, Ding X, Zou D, Cui D, Zreiqat H, Jiang X. Effects of Sr-HT-Gahnite on osteogenesis and angiogenesis by adipose derived stem cells for critical-sized calvarial defect repair. Sci Rep 2017; 7:41135. [PMID: 28106165 PMCID: PMC5247715 DOI: 10.1038/srep41135] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/15/2016] [Indexed: 01/08/2023] Open
Abstract
Tissue engineering strategies to construct vascularized bone grafts are now attracting much attention. Strontium-hardystonite-Gahnite (Sr-HT-Gahnite) is a strong, highly porous, and biocompatible calcium silicate based bio-ceramic that contains strontium and zinc ions. Adipose derived stem cells (ASCs) have been demonstrated to have the ability in promoting osteogenesis and angiogenesis. In this study, the effects of Sr-HT-Gahnite on cell morphology, cell proliferation, and osteogenic differentiation of ASCs were systematically investigated. The cell proliferation, migration and angiogenic differentiation of human umbilical vein endothelial cell (HUVECs) were studied. Beta-tricalcium phosphate/hydroxyapatite (TCP/HA) bioceramic scaffolds were set as the control biomaterial. Both bio-ceramics exhibited no adverse influence on cell viability. The Sr-HT-Gahnite scaffolds promoted cell attachment and alkaline phosphatase (ALP) activity of ASCs. The Sr-HT-Gahnite dissolution products enhanced ALP activity, matrix mineralization, and angiogenic differentiation of ASCs. They could also improve cell proliferation, migration, and angiogenic differentiation of HUVECs. Levels of in vivo bone formation with Sr-HT Gahnite were significantly higher than that for TCP/HA. The combination of Sr-HT-Gahnite and ASCs promoted both osteogenesis and angiogenesis in vivo study, compared to Sr-HT-Gahnite and TCP/HA bio-ceramics when administered alone, suggesting Sr-HT-Gahnite can act as a carrier for ASCs for construction of vascularized tissue-engineered bone.
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Affiliation(s)
- Guifang Wang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Seyed-Iman Roohani-Esfahani
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, NSW 2006, Australia
| | - Wenjie Zhang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Kaige Lv
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Guangzheng Yang
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Xun Ding
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Derong Zou
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Key Laboratory of Thin Film and Microfabrication Technology of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, National Center for Translational Medicine, Collaborative Innovational Center for System Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, NSW 2006, Australia
| | - Xinquan Jiang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
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29
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Xu S, Liu J, Zhang L, Yang F, Tang P, Wu D. Effects of HAp and TCP in constructing tissue engineering scaffolds for bone repair. J Mater Chem B 2017; 5:6110-6118. [DOI: 10.1039/c7tb00790f] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TCP possesses superior long-term effects in structuring tissue engineering scaffold for bone repair compared to HAp, though TCP lags behind HAp in the early repair period.
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Affiliation(s)
- Sijia Xu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Jianheng Liu
- Department of Orthopaedics
- Chinese PLA General Hospital
- Beijing 100853
- China
| | - Licheng Zhang
- Department of Orthopaedics
- Chinese PLA General Hospital
- Beijing 100853
- China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Peifu Tang
- Department of Orthopaedics
- Chinese PLA General Hospital
- Beijing 100853
- China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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30
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Abubakar AA, Noordin MM, Azmi TI, Kaka U, Loqman MY. The use of rats and mice as animal models in ex vivo bone growth and development studies. Bone Joint Res 2016; 5:610-618. [PMID: 27965220 PMCID: PMC5227059 DOI: 10.1302/2046-3758.512.bjr-2016-0102.r2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 10/06/2016] [Indexed: 01/09/2023] Open
Abstract
In vivo animal experimentation has been one of the cornerstones of biological and biomedical research, particularly in the field of clinical medicine and pharmaceuticals. The conventional in vivo model system is invariably associated with high production costs and strict ethical considerations. These limitations led to the evolution of an ex vivo model system which partially or completely surmounted some of the constraints faced in an in vivo model system. The ex vivo rodent bone culture system has been used to elucidate the understanding of skeletal physiology and pathophysiology for more than 90 years. This review attempts to provide a brief summary of the historical evolution of the rodent bone culture system with emphasis on the strengths and limitations of the model. It encompasses the frequency of use of rats and mice for ex vivo bone studies, nutritional requirements in ex vivo bone growth and emerging developments and technologies. This compilation of information could assist researchers in the field of regenerative medicine and bone tissue engineering towards a better understanding of skeletal growth and development for application in general clinical medicine.Cite this article: A. A. Abubakar, M. M. Noordin, T. I. Azmi, U. Kaka, M. Y. Loqman. The use of rats and mice as animal models in ex vivo bone growth and development studies. Bone Joint Res 2016;5:610-618. DOI: 10.1302/2046-3758.512.BJR-2016-0102.R2.
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Affiliation(s)
- A A Abubakar
- Department of Pre-Clinical Veterinary Sciences, Universiti Putra Malaysia, Malaysia
| | - M M Noordin
- Department of Pre-Clinical Veterinary Sciences, Universiti Putra Malaysia, Malaysia
| | - T I Azmi
- Department of Pre-Clinical Veterinary Sciences, Universiti Putra Malaysia, Malaysia
| | - U Kaka
- Department of Pre-Clinical Veterinary Sciences, Universiti Putra Malaysia, Malaysia
| | - M Y Loqman
- Department of Pre-Clinical Veterinary Sciences, Universiti Putra Malaysia, Malaysia
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31
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Moreno-Jiménez I, Hulsart-Billstrom G, Lanham SA, Janeczek AA, Kontouli N, Kanczler JM, Evans ND, Oreffo ROC. The chorioallantoic membrane (CAM) assay for the study of human bone regeneration: a refinement animal model for tissue engineering. Sci Rep 2016; 6:32168. [PMID: 27577960 PMCID: PMC5006015 DOI: 10.1038/srep32168] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/02/2016] [Indexed: 01/08/2023] Open
Abstract
Biomaterial development for tissue engineering applications is rapidly increasing but necessitates efficacy and safety testing prior to clinical application. Current in vitro and in vivo models hold a number of limitations, including expense, lack of correlation between animal models and human outcomes and the need to perform invasive procedures on animals; hence requiring new predictive screening methods. In the present study we tested the hypothesis that the chick embryo chorioallantoic membrane (CAM) can be used as a bioreactor to culture and study the regeneration of human living bone. We extracted bone cylinders from human femoral heads, simulated an injury using a drill-hole defect, and implanted the bone on CAM or in vitro control-culture. Micro-computed tomography (μCT) was used to quantify the magnitude and location of bone volume changes followed by histological analyses to assess bone repair. CAM blood vessels were observed to infiltrate the human bone cylinder and maintain human cell viability. Histological evaluation revealed extensive extracellular matrix deposition in proximity to endochondral condensations (Sox9+) on the CAM-implanted bone cylinders, correlating with a significant increase in bone volume by μCT analysis (p < 0.01). This human-avian system offers a simple refinement model for animal research and a step towards a humanized in vivo model for tissue engineering.
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Affiliation(s)
- Inés Moreno-Jiménez
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Gry Hulsart-Billstrom
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Stuart A. Lanham
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Agnieszka A. Janeczek
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Nasia Kontouli
- Cancer Sciences Unit, Somers Cancer Research, University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Janos M. Kanczler
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Nicholas D. Evans
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
| | - Richard OC Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences University of Southampton, Tremona Road, Southampton, SO16 6YD, UK
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32
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A Long-Acting BMP-2 Release System Based on Poly(3-hydroxybutyrate) Nanoparticles Modified by Amphiphilic Phospholipid for Osteogenic Differentiation. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5878645. [PMID: 27379249 PMCID: PMC4917749 DOI: 10.1155/2016/5878645] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/17/2016] [Indexed: 12/31/2022]
Abstract
We explored a novel poly(3-hydroxybutyrate) (PHB) nanoparticle loaded with hydrophilic recombinant human BMP-2 with amphiphilic phospholipid (BPC-PHB NP) for a rapid-acting and long-acting delivery system of BMP-2 for osteogenic differentiation. The BPC-PHB NPs were prepared by a solvent evaporation method and showed a spherical particle with a mean particle size of 253.4 nm, mean zeta potential of −22.42 mV, and high entrapment efficiency of 77.18%, respectively. For BPC-PHB NPs, a short initial burst release of BMP-2 from NPs in 24 h was found and it has steadily risen to reach about 80% in 20 days for in vitro test. BPC-PHB NPs significantly reduced the burst release of BMP-2, as compared to that of PHB NPs loading BMP-2 without PL (B-PHB NPs). BPC-PHB NPs maintained the content of BMP-2 for a long-term osteogenic differentiation. The OCT-1 cells with BPC-PHB NPs have high ALP activity in comparison with others. The gene markers for osteogenic differentiation were significantly upregulated for sample with BPC-PHB NPs, implying that BPC-PHB NPs can be used as a rapid-acting and long-acting BMP-2 delivery system for osteogenic differentiation.
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Mi HY, Jing X, Salick MR, Cordie TM, Turng LS. Carbon nanotube (CNT) and nanofibrillated cellulose (NFC) reinforcement effect on thermoplastic polyurethane (TPU) scaffolds fabricated via phase separation using dimethyl sulfoxide (DMSO) as solvent. J Mech Behav Biomed Mater 2016; 62:417-427. [PMID: 27266475 DOI: 10.1016/j.jmbbm.2016.05.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/18/2016] [Accepted: 05/23/2016] [Indexed: 12/15/2022]
Abstract
Although phase separation is a simple method of preparing tissue engineering scaffolds, it suffers from organic solvent residual in the scaffold. Searching for nontoxic solvents and developing effective solvent removal methods are current challenges in scaffold fabrication. In this study, thermoplastic polyurethane (TPU) scaffolds containing carbon nanotubes (CNTs) or nanofibrillated cellulose fibers (NFCs) were prepared using low toxicity dimethyl sulfoxide (DMSO) as a solvent. The effects of two solvent removal approaches on the final scaffold morphology were studied. The freeze drying method caused large pores, with small pores on the pore walls, which created connections between the pores. Meanwhile, the leaching and freeze drying method led to interconnected fine pores with smaller pore diameters. The nucleation effect of CNTs and the phase separation behavior of NFCs in the TPU solution resulted in significant differences in the microstructures of the resulting scaffolds. The mechanical performance of the nanocomposite scaffolds with different morphologies was investigated. Generally, the scaffolds with a fine pore structure showed higher compressive properties, and both the CNTs and NFCs improved the compressive properties of the scaffolds, with greater enhancement found in TPU/NFC nanocomposite scaffolds. In addition, all scaffolds showed good sustainability under cyclical load bearing, and the biocompatibility of the scaffolds was verified via 3T3 fibroblast cell culture.
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Affiliation(s)
- Hao-Yang Mi
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510640, China; Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Xin Jing
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Max R Salick
- Department of Engineering Physics, University of Wisconsin-Madison, WI 53706, USA
| | - Travis M Cordie
- Department of Biomedical, University of Wisconsin-Madison, WI 53706, USA
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
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Kim M, Kim Y, Lee S, Kuk M, Kim AY, Kim W, Kweon OK. Comparison of viability and antioxidant capacity between canine adipose-derived mesenchymal stem cells and heme oxygenase-1-overexpressed cells after freeze-thawing. J Vet Med Sci 2015; 78:619-25. [PMID: 26725542 PMCID: PMC4873853 DOI: 10.1292/jvms.15-0361] [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: 12/13/2022] Open
Abstract
Allogenic adipose-derived mesenchymal stem cells (Ad-MSCs) are an alternative source for
cytotherapy owing to their antioxidant and anti-inflammatory effects. Frozen-thawed
allogenic Ad-MSCs can be used instantly for this purpose. However, the viability and
function of frozen-thawed Ad-MSCs have not been clearly evaluated. The purpose of this
study was to compare the viability and function of Ad-MSCs and heme oxygenase-1
(HO-1)-overexpressed Ad-MSCs in vitro after freeze-thawing. The
viability, proliferation, antioxidant capacity and mRNA gene expression of growth factors
were evaluated. Frozen-thawed cells showed significantly lower viability than fresh cells
(77% for Ad-MSCs and 71% for HO-1 Ad-MSCs, P<0.01). However, the
proliferation rate of frozen-thawed Ad-MSCs increased and did not differ from that of
fresh Ad-MSCs after 3 days of culture. In contrast, the proliferation rate of
HO-1-overexpressed Ad-MSCs was lower than that of Ad-MSCs. The mRNA expression levels of
TGF-β, HGF and VEGF did not differ
between fresh and frozen-thawed Ad-MSCs, but COX-2 and
IL-6 had significantly higher mRNA expression in frozen cells than
fresh cells (P<0.05). Fresh Ad-MSCs exhibited higher
HO-1 mRNA expression than frozen-thawed Ad-MSCs, and fresh
HO-1-overexpressed Ad-MSCs exhibited higher than fresh Ad-MSCs
(P<0.05). However, there was no significant difference between fresh
and frozen HO-1-overexpressed Ad-MSCs. The antioxidant capacity of HO-1-overexpressed
Ad-MSCs was significantly higher than that of Ad-MSCs. Cryopreservation of Ad-MSCs
negatively affects viability and antioxidant capacity, and HO-1-overexpressed Ad-MSCs
might be useful to maximize the effect of Ad-MSCs for cytotherapy.
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Affiliation(s)
- Mijung Kim
- BK21 PLUS Program for Creative Veterinary Science Research, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
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Olender E, Brubaker S, Uhrynowska-Tyszkiewicz I, Wojtowicz A, Kaminski A. Autologous osteoblast transplantation, an innovative method of bone defect treatment: role of a tissue and cell bank in the process. Transplant Proc 2015; 46:2867-72. [PMID: 25380938 DOI: 10.1016/j.transproceed.2014.09.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND The idea of cell treatment of various diseases and medical conditions has become very popular. Some procedures are well established, as is autologous chondrocyte implantation, whereas others are still in the process of early development, laboratory experiments, and some clinical trials. METHODS This report is devoted to an example of an emerging cell treatment: bone augmentation with the use of autologous cells and its legal and technical background. Various requirements set by law must be met by tissue banks performing cell seeding of grafts. In Europe, the requirements are described in directives 2004/23/EC, 2006/17/EC, 2006/86/EC, and in the regulation 2007/1394/EC. RESULTS Revitalization of biostatic allografts gives new, promising tools for creation of functional parts of organs; brings the methodology used in tissue banks closer to tissue engineering; places the enterprise in the mainstream of advanced biotechnology; allows the full potential of tissue allografts; and opens a new, large area for clinical and laboratory research. Cell and tissue processing also have a financial impact on the treatment: it produces additional expenditures. CONCLUSIONS Clinical effectiveness will be the most decisive factor of whether this innovative treatment will be applied in a particular type of medical condition. From a tissue establishment perspective, the most important issue is to develop a procedure that ensures safety for the patient in graft quality terms.
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Affiliation(s)
- E Olender
- Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, and National Centre for Tissue and Cell Banking, Warsaw, Poland.
| | - S Brubaker
- American Association of Tissue Banks, McLean, Virginia
| | - I Uhrynowska-Tyszkiewicz
- Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, and National Centre for Tissue and Cell Banking, Warsaw, Poland
| | - A Wojtowicz
- Department of Dental Surgery, Medical University of Warsaw, Warsaw, Poland
| | - A Kaminski
- Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, and National Centre for Tissue and Cell Banking, Warsaw, Poland
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Baumgartner W, Welti M, Hild N, Hess SC, Stark WJ, Bürgisser GM, Giovanoli P, Buschmann J. Tissue mechanics of piled critical size biomimetic and biominerizable nanocomposites: Formation of bioreactor-induced stem cell gradients under perfusion and compression. J Mech Behav Biomed Mater 2015; 47:124-134. [DOI: 10.1016/j.jmbbm.2015.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/18/2015] [Accepted: 03/24/2015] [Indexed: 02/08/2023]
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van der Smissen A, Hoffmeister PG, Friedrich N, Watarai A, Hacker MC, Schulz-Siegmund M, Anderegg U. Artificial extracellular matrices support cell growth and matrix synthesis of human dermal fibroblasts in macroporous 3D scaffolds. J Tissue Eng Regen Med 2015; 11:1390-1402. [DOI: 10.1002/term.2037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 01/26/2015] [Accepted: 04/22/2015] [Indexed: 01/10/2023]
Affiliation(s)
- Anja van der Smissen
- Department of Dermatology, Venereology and Allergology; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
| | - Peter-Georg Hoffmeister
- Pharmaceutical Technology, Institute of Pharmacy; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
| | - Nadja Friedrich
- Department of Dermatology, Venereology and Allergology; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
| | - Akira Watarai
- Department of Dermatology, Venereology and Allergology; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
- School of Medicine; Kitasato University; Japan
| | - Michael C. Hacker
- Pharmaceutical Technology, Institute of Pharmacy; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
| | - Michaela Schulz-Siegmund
- Pharmaceutical Technology, Institute of Pharmacy; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
| | - Ulf Anderegg
- Department of Dermatology, Venereology and Allergology; Leipzig University; Germany
- Collaborative Research Centre (SFB-TR67); Matrix Engineering Leipzig and Dresden; Germany
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Motamedian SR, Hosseinpour S, Ahsaie MG, Khojasteh A. Smart scaffolds in bone tissue engineering: A systematic review of literature. World J Stem Cells 2015; 7:657-668. [PMID: 25914772 PMCID: PMC4404400 DOI: 10.4252/wjsc.v7.i3.657] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 12/10/2014] [Accepted: 12/31/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To improve osteogenic differentiation and attachment of cells.
METHODS: An electronic search was conducted in PubMed from January 2004 to December 2013. Studies which performed smart modifications on conventional bone scaffold materials were included. Scaffolds with controlled release or encapsulation of bioactive molecules were not included. Experiments which did not investigate response of cells toward the scaffold (cell attachment, proliferation or osteoblastic differentiation) were excluded.
RESULTS: Among 1458 studies, 38 met the inclusion and exclusion criteria. The main scaffold varied extensively among the included studies. Smart modifications included addition of growth factors (group I-11 studies), extracellular matrix-like molecules (group II-13 studies) and nanoparticles (nano-HA) (group III-17 studies). In all groups, surface coating was the most commonly applied approach for smart modification of scaffolds. In group I, bone morphogenetic proteins were mainly used as growth factor stabilized on polycaprolactone (PCL). In group II, collagen 1 in combination with PCL, hydroxyapatite (HA) and tricalcium phosphate were the most frequent scaffolds used. In the third group, nano-HA with PCL and chitosan were used the most. As variable methods were used, a thorough and comprehensible compare between the results and approaches was unattainable.
CONCLUSION: Regarding the variability in methodology of these in vitro studies it was demonstrated that smart modification of scaffolds can improve tissue properties.
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Kamel M, Port J, Altorki NK. Sternal Resections: New Materials for Reconstruction. CURRENT SURGERY REPORTS 2015. [DOI: 10.1007/s40137-015-0094-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Electrospinning of Bioinspired Polymer Scaffolds. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:33-53. [DOI: 10.1007/978-3-319-22345-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Lamprou M, Kaspiris A, Panagiotopoulos E, Giannoudis PV, Papadimitriou E. The role of pleiotrophin in bone repair. Injury 2014; 45:1816-23. [PMID: 25456495 DOI: 10.1016/j.injury.2014.10.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 10/07/2014] [Indexed: 02/02/2023]
Abstract
Bone has an enormous capacity for growth, regeneration, and remodelling, largely due to induction of osteoblasts that are recruited to the site of bone formation. Although the pathways involved have not been fully elucidated, it is well accepted that the immediate environment of the cells is likely to play a role via cell–matrix interactions, mediated by several growth factors. Formation of new blood vessels is also significant and interdependent to bone formation, suggesting that enhancement of angiogenesis could be beneficial during the process of bone repair. Pleiotrophin (PTN), also called osteoblast-specific factor 1, is a heparin-binding angiogenic growth factor, with a well-defined and significant role in both physiological and pathological angiogenesis. In this review we summarise the existing evidence on the role of PTN in bone repair.
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Shi Y, Han H, Quan H, Zang Y, Wang N, Ren G, Xing M, Wu Q. Activated carbon fibers/poly(lactic-co-glycolic) acid composite scaffolds: Preparation and characterizations. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:102-8. [DOI: 10.1016/j.msec.2014.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 05/22/2014] [Accepted: 07/01/2014] [Indexed: 10/25/2022]
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Narbona-Carceles J, Vaquero J, Suárez-Sancho SBS, Forriol F, Fernández-Santos ME. Bone marrow mesenchymal stem cell aspirates from alternative sources: is the knee as good as the iliac crest? Injury 2014; 45 Suppl 4:S42-7. [PMID: 25384474 DOI: 10.1016/s0020-1383(14)70009-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The most common method to obtain human mesenchymal stem cells (MSCs) is bone marrow aspiration from the iliac crest, but MSCs have also been isolated from different bones. The main purpose of this study was to compare bone marrow MSCs aspirated from the metaphysis of the distal femur and the proximal tibia with those obtained from the iliac crest, and to determine whether these locations represent potential alternative sources of MSCs for research and clinical application. MATERIALS AND METHODS Bone marrow was aspirated from the iliac crest and the metaphysis of the distal femur and the proximal tibia during total knee arthroplasty in 20 patients. The aspirates were centrifuged by density gradient, then mononucleated cell (MNC) concentration in the different aspirates was determined using a Coulter counter. MSCs were isolated, cultivated and characterised by their immunophenotype and by their in vitro potential for differentiation into osteoblasts, chondroblasts and adipocytes in specific media. Expansion and cell viability were quantified using trypan blue staining and cell counting with a haemocytometer (Neubauer chamber). The three sources were compared in terms of MNC concentration, viability of the cultures and presence of MSC using the Wilcoxon test. RESULTS MNC concentration was significantly higher in the iliac crest (10.05 Millions/ml) compared with the femur (0.67 Millions/ml) and tibia (1.7 Millions/ml). Culture success rates were 90%, 71% and 47% for MSCs from the iliac crest, femur and tibia, respectively. Flow cytometry analysis showed the presence of CD90+, CD105+, CD73+, VEGF+, CD71+, HLA-DR-, CD45-, CD34-, CD19-, and CD14- cells. The immunophenotype pattern of MSCs was similar for the three locations. Trilineage differentiation was achieved with all samples. CONCLUSIONS MSCs can be found in bone marrow from the metaphysis of both the distal femur and the proximal tibia. The phenotype and differentiation potential of these cells are similar to those of bone marrow MSCs from the iliac crest. Bone marrow aspiration from these locations is a relatively easy and safe alternative to that from the iliac crest for obtaining MSCs. Further study is required to assess whether the concentrations of MSCs obtained from these sources are sufficient for one-step therapeutic purposes.
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Affiliation(s)
| | - Javier Vaquero
- Orthopaedics Department, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Susana B S Suárez-Sancho
- Regenerative Medicine and Cellular Therapy Unit, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Francisco Forriol
- School of Medicine, University San Pablo CEU, Campus Monteprincipe, Boadilla del Monte, Madrid, Spain
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Ramos-Pascua LR, Sánchez-Herraéz S, Casas-Ramos P, Molnar Fuentes S, Santos Sánchez JÁ. Investigating a potential biological treatment to prevent pathological fractures caused by unicameral bone cysts in children under 8 years. Injury 2014; 45 Suppl 4:S28-35. [PMID: 25384472 DOI: 10.1016/s0020-1383(14)70007-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION There is no consensus on when and how to treat unicameral bone cysts (UBCs), partly because of a lack of knowledge of the aetiology. PURPOSE To review the different treatment techniques for UBCs and to describe our results with a single injection of autogenous bone marrow (BM) mixed with demineralised bone matrix (DBM) in very young children. PATIENTS AND METHODS We reviewed five patients under the age of 8 years with UBCs treated by percutaneous aspiration and a single injection of BM associated with DBM. The cyst was located in the proximal humerus in four patients and in the proximal femur in one patient. Assessment of the need for surgery was based on the clinical and radiographic suspicion of new pathological fractures. The administration of a second injection, when necessary, was based on the surgeon's judgement regarding the risk of fracture. The mean follow-up after first injection was 41 months. RESULTS There were no complications related to the procedure, except a non-displaced fracture, which healed without problems. All patients were pain free and progressively resumed their activities without restriction until a new fracture occurred in two cases. According to Capanna's classification, only one case healed completely (grade 1), one lesion was classified as grade 2, and there were three recurrences at 11, 12 and 27 months after initial treatment (grade 3). The final outcome was treatment failure for three out of the five patients. Two patients were treated with a second injection and one patient is waiting for surgery. CONCLUSION A single injection of aspirated autogenous BM mixed with DBM in very young children with active UBCs at risk of fracture is very simple, comfortable and safe. Nevertheless, the results seem to be unpredictable and are probably more dependent on the natural evolution of the cyst than on the treatment. Further comparative studies with larger sample numbers are needed.
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Affiliation(s)
- Luis R Ramos-Pascua
- Department of Traumatology and Orthopaedic Surgery, Hospital Universitario de León, León, Spai.
| | - Sergio Sánchez-Herraéz
- Department of Traumatology and Orthopaedic Surgery, Hospital Universitario de León, León, Spai
| | - Paula Casas-Ramos
- Department of Traumatology and Orthopaedic Surgery, Hospital Universitario de León, León, Spai
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Valencia Mora M, Antuña Antuña S, García Arranz M, Carrascal MT, Barco R. Application of adipose tissue-derived stem cells in a rat rotator cuff repair model. Injury 2014; 45 Suppl 4:S22-7. [PMID: 25384471 DOI: 10.1016/s0020-1383(14)70006-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Healing tissue of the rotator cuff does not regenerate the native enthesis; fibrovascular scar tissue is formed instead and this has less favourable biomechanical properties. The purpose of this study was to determine if the application of adipose tissue-derived stem cells (ASCs) could improve biomechanical and histological properties of the repair. MATERIAL AND METHODS Fifty Sprague-Dawley rats underwent detachment and repair of the supraspinatus tendon, 32 for the biomechanical study and 18 for the histological examination. Animals were randomised in two groups to receive either a collagen carrier alone (untreated group) or the carrier plus 2×10(6) ASCs (ASCs group). A control group (suture only) was also included for the histological examination. The animals were sacrificed at 2 and 4 weeks for the biomechanical study and at 24 hours, and 1 and 4 weeks for the histological study. Maximum load failure energy, elastic energy, mechanical deformation, stiffness and absorbed energy were measured. Immunofluorescence testing was conducted to show the presence of ASCs in the repair area. RESULTS There were no differences between the untreated group and the ASCs group in any of the biomechanical variables at the 2- and 4-week time points. The mechanical deformation before failure was higher for the ASCs group compared with the untreated group at 2 weeks and 4 weeks (p=0.09), as was the absorbed energy (p=0.06). Differences in maximum load to failure between 2 and 4 weeks were significant for the untreated group (p=0.04) but not for the ASCs group (p=0.17). Histological examination showed less acute inflammation with diminished presence of oedema and neutrophils in the ASCs group. There were no differences in the orientation of collagen fibres between groups at either time point. In the ASCs group, collagen was present only at the last time point. CONCLUSION The application of ASCs in a rat rotator cuff repair model did not improve the biomechanical properties of the tendon-to-bone healing. However, the ASCs group showed less inflammation, which may lead to a more elastic repair and less scarred healing.
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Affiliation(s)
| | | | | | - Maria Teresa Carrascal
- Departamento de Biomecánica; Escuela Técnica Superior de Ingeniería Industrial UNED, Madrid, Spain
| | - Raúl Barco
- Hospital Universitario La Paz, Madrid, Spain.
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Li DQ, Li M, Liu PL, Zhang YK, Lu JX, Li JM. Improved repair of bone defects with prevascularized tissue-engineered bones constructed in a perfusion bioreactor. Orthopedics 2014; 37:685-90. [PMID: 25275969 DOI: 10.3928/01477447-20140924-06] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Accepted: 05/12/2014] [Indexed: 02/03/2023]
Abstract
Vascularization of tissue-engineered bones is critical to achieving satisfactory repair of bone defects. The authors investigated the use of prevascularized tissue-engineered bone for repairing bone defects. The new bone was greater in the prevascularized group than in the non-vascularized group, indicating that prevascularized tissue-engineered bone improves the repair of bone defects. [Orthopedics. 2014; 37(10):685-690.].
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Tissue-engineered bone constructed in a bioreactor for repairing critical-sized bone defects in sheep. INTERNATIONAL ORTHOPAEDICS 2014; 38:2399-406. [PMID: 24916136 DOI: 10.1007/s00264-014-2389-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 05/18/2014] [Indexed: 12/21/2022]
Abstract
PURPOSE Repair of bone defects, particularly critical-sized bone defects, is a considerable challenge in orthopaedics. Tissue-engineered bones provide an effective approach. However, previous studies mainly focused on the repair of bone defects in small animals. For better clinical application, repairing critical-sized bone defects in large animals must be studied. This study investigated the effect of a tissue-engineered bone for repairing critical-sized bone defect in sheep. METHODS A tissue-engineered bone was constructed by culturing bone marrow mesenchymal-stem-cell-derived osteoblast cells seeded in a porous β-tricalcium phosphate ceramic (β-TCP) scaffold in a perfusion bioreactor. A critical-sized bone defect in sheep was repaired with the tissue-engineered bone. At the eighth and 16th week after the implantation of the tissue-engineered bone, X-ray examination and histological analysis were performed to evaluate the defect. The bone defect with only the β-TCP scaffold served as the control. RESULT X-ray showed that the bone defect was successfully repaired 16 weeks after implantation of the tissue-engineered bone; histological sections showed that a sufficient volume of new bones formed in β-TCP 16 weeks after implantation. Eight and 16 weeks after implantation, the volume of new bones that formed in the tissue-engineered bone group was more than that in the β-TCP scaffold group (P < 0.05). CONCLUSION Tissue-engineered bone improved osteogenesis in vivo and enhanced the ability to repair critical-sized bone defects in large animals.
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Proliferation of ASC-derived endothelial cells in a 3D electrospun mesh: impact of bone-biomimetic nanocomposite and co-culture with ASC-derived osteoblasts. Injury 2014; 45:974-80. [PMID: 24650943 DOI: 10.1016/j.injury.2014.02.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 02/18/2014] [Accepted: 02/25/2014] [Indexed: 02/02/2023]
Abstract
BACKGROUND Fractures with a critical size bone defect are associated with high rates of delayed- and non-union. The treatment of such complications remains a serious issue in orthopaedic surgery. Adipose derived stem cells (ASCs) combined with biomimetic materials can potentially be used to increase fracture healing. Nevertheless, a number of requirements have to be fulfilled; in particular, the insufficient vascularisation of the bone constructs. Here, the objectives were to study the impact of ASC-derived osteoblasts on ASC-derived endothelial cells in a 3D co-culture and the effect of 40wt% of amorphous calcium phosphate nanoparticles on the proliferation and differentiation of ASC-derived endothelial cells when present in PLGA. MATERIALS AND METHODS Five primary ASC lines were differentiated towards osteoblasts (OBs) and endothelial cells (ECs) and two of them were chosen based on quantitative PCR results. Either a mono-culture of ASC-derived EC or a co-culture of ASC-derived EC with ASC-derived OB (1:1) was seeded on an electrospun nanocomposite of poly-(lactic-co-glycolic acid) and amorphous calcium phosphate nanoparticles (PLGA/a-CaP; reference: PLGA). The proliferation behaviour was determined histomorphometrically in different zones and the expression of von Willebrand Factor (vWF) was quantified. RESULTS Independently of the fat source (biologic variability), ASC-derived osteoblasts decelerated the proliferation behaviour of ASC-derived endothelial cells in the co-culture compared to the mono-culture. However, expression of vWF was clearly stronger in the co-culture, indicating further differentiation of the ASC-derived EC into the EC lineage. Moreover, the presence of a-CaP nanoparticles in the scaffold slowed the proliferation behaviour of the co-culture cells, too, going along with a further differentiation of the ASC-derived OB, when compared to pure PLGA scaffolds. CONCLUSIONS This study revealed significant findings for bone tissue-engineering. Co-cultures of ASC-derived EC and ASC-derived OB stimulate each other's further differentiation. A nanocomposite with a-CaP nanoparticles offers higher mechanical stability, bioactivity and osteoconductivity compared to mere PLGA and can easily be seeded with pre-differentiated EC and OB.
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