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Lu G, Li X, Wang P, Li X, Wang Y, Zhu J, Ronca A, D'Amora U, Liu W, Hui X. Polysaccharide-Based Composite Hydrogel with Hierarchical Microstructure for Enhanced Vascularization and Skull Regeneration. Biomacromolecules 2023; 24:4970-4988. [PMID: 37729544 DOI: 10.1021/acs.biomac.3c00655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Critical-size skull defects caused by trauma, infection, and tumor resection raise great demands for efficient bone substitutes. Herein, a hybrid cross-linked hierarchical microporous hydrogel scaffold (PHCLS) was successfully assembled by a multistep procedure, which involved (i) the preparation of poly(lactic-co-glycolic)/nanohydroxyapatite (PLGA-HAP) porous microspheres, (ii) embedding the spheres in a solution of dopamine-modified hyaluronic acid and collagen I (Col I) and cross-linking via dopamine polyphenols binding to (i) Col I amino groups (via Michael addition) and (ii) PLGA-HAP (via calcium ion chelation). The introduction of PLGA-HAP not only improved the diversity of pore size and pore communication inside the matrix but also greatly enhanced the compressive strength (5.24-fold, 77.5 kPa) and degradation properties to construct a more stable mechanical structure. In particular, the PHCLS (200 mg, nHAP) promoted the proliferation, infiltration, and angiogenic differentiation of bone marrow mesenchymal stem cells in vitro, as well as significant ectopic angiogenesis and mineralization with a storage modulus enhancement of 2.5-fold after 30 days. Meanwhile, the appropriate matrix microenvironment initiated angiogenesis and early osteogenesis by accelerating endogenous stem cell recruitment in situ. Together, the PHCLS allowed substantial skull reconstruction in the rabbit cranial defect model, achieving 85.2% breaking load strength and 84.5% bone volume fractions in comparison to the natural cranium, 12 weeks after implantation. Overall, this study reveals that the hierarchical microporous hydrogel scaffold provides a promising strategy for skull defect treatment.
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Affiliation(s)
- Gonggong Lu
- Department of Neurosurgery, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu, Sichuan 610041, P.R. China
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
| | - Xiang Li
- Department of Neurosurgery, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu, Sichuan 610041, P.R. China
| | - Peilei Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
| | - Xing Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
| | - Yuxiang Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
| | - Jiayi Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
- College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu, Sichuan 610064, P.R. China
| | - Alfredo Ronca
- National Research Council, Institute of Polymers, Composites and Biomaterials, Naples 80125, Italy
| | - Ugo D'Amora
- National Research Council, Institute of Polymers, Composites and Biomaterials, Naples 80125, Italy
| | - Wenke Liu
- Department of Neurosurgery, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu, Sichuan 610041, P.R. China
| | - Xuhui Hui
- Department of Neurosurgery, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu, Sichuan 610041, P.R. China
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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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Khoramgah MS, Ghanbarian H, Ranjbari J, Ebrahimi N, Tabatabaei Mirakabad FS, Ahmady Roozbahany N, Abbaszadeh HA, Hosseinzadeh S. Repairing rat calvarial defects by adipose mesenchymal stem cells and novel freeze-dried three-dimensional nanofibrous scaffolds. BIOIMPACTS : BI 2023; 13:31-42. [PMID: 36817003 PMCID: PMC9923815 DOI: 10.34172/bi.2021.23711] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/14/2021] [Accepted: 07/24/2021] [Indexed: 11/09/2022]
Abstract
Introduction: Treatment of critical-sized bone defects is challenging. Tissue engineering as a state-of-the-art method has been concerned with treating these non-self-healing bone defects. Here, we studied the potentials of new three-dimensional nanofibrous scaffolds (3DNS) with and without human adipose mesenchymal stem cells (ADSCs) for reconstructing rat critical-sized calvarial defects (CSCD). Methods: Scaffolds were made from 1- polytetrafluoroethylene (PTFE), and polyvinyl alcohol (PVA) (PTFE/ PVA group), and 2- PTFE, PVA, and graphene oxide (GO) nanoparticle (PTFE/ PVA/GO group) and seeded by ADSCs and incubated in osteogenic media (OM). The expression of key osteogenic proteins including Runt-related transcription factor 2 (Runx2), collagen type Iα (COL Iα), osteocalcin (OCN), and osteonectin (ON) at days 14 and 21 of culture were evaluated by western blot and immunocytochemistry methods. Next, 40 selected rats were assigned to five groups (n=8) to create CSCD which will be filled by scaffolds or cell-containing scaffolds. The groups were denominated as the following order: Control (empty defects), PTFE/PVA (PTFE/PVA scaffolds implant), PTFE/PVA/GO (PTFE/PVA/GO scaffolds implant), PTFE/PVA/Cell group (PTFE/PVA scaffolds containing ADSCs implant), and PTFE/PVA/GO/Cell group (PTFE/PVA/GO scaffolds containing ADSCs implant). Six and 12 weeks after implantation, the animals were sacrificed and bone regeneration was evaluated using computerized tomography (CT), and hematoxylin-eosin (H&E) staining. Results: Based on the in-vitro study, expression of bone-related proteins in ADSCs seeded on PTFE/PVA/GO scaffolds were significantly higher than PTFE/PVA scaffolds and TCPS (P<0.05). Based on the in-vivo study, bone regeneration in CSCD were filled with PTFE/PVA/GO scaffolds containing ADSCs were significantly higher than PTFE/PVA scaffolds containing ADSCs (P<0.05). CSCD filled with cell-seeded scaffolds showed higher bone regeneration in comparison with CSCD filled with scaffolds only (P<0.05). Conclusion: The data provided evidence showing new freeze-dried nanofibrous scaffolds formed from hydrophobic (PTFE) and hydrophilic (PVA) polymers with and without GO provide a suitable environment for ADSCs due to the expression of bone-related proteins. ADSCs and GO in the implanted scaffolds had a distinct effect on the bone regeneration process in this in-vivo study.
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Affiliation(s)
- Maryam Sadat Khoramgah
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Ghanbarian
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Javad Ranjbari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nilufar Ebrahimi
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Biomedical Engineering, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Fatemeh Sadat Tabatabaei Mirakabad
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navid Ahmady Roozbahany
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Private Practice, Bradford ON, Canada
| | - Hojjat Allah Abbaszadeh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Corresponding authors: Hojjat-Allah Abbaszadeh, ; Simzar Hosseinzadeh,
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Corresponding authors: Hojjat-Allah Abbaszadeh, ; Simzar Hosseinzadeh,
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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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Baudequin T, Naudot M, Dupont S, Testelin S, Devauchelle B, Bedoui F, Marolleau JP, Legallais C. Donor variability alters differentiation and mechanical cohesion of tissue-engineered constructs with human endothelial/MSC co-culture. Int J Artif Organs 2021; 44:868-879. [PMID: 34643146 DOI: 10.1177/03913988211051758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To move towards clinical applications, tissue engineering (TE) should be validated with human primary cells and offer easy connection to the native vascularisation. Based on a sheet-like bone substitute developed previously, we investigated a mesenchymal stem cells/endothelial cells (MSCs/ECs) coculture to enhance pre-vascularisation. Using MSCs from six independent donors whose differentiation potential was assessed towards two lineages, we focused on donor variability and cell crosstalk regarding bone differentiation. Coculture was performed on calcium phosphate granules in a specific chamber during 1 month. MSCs were seeded first then ECs were added after 2 weeks, with respective monocultures as control groups. Cell viability and organisation (fluorescence, electronic microscopy), differentiation (ALP staining/activity, RT-qPCR) and mechanical cohesion were analysed. Adaptation of the protocol to coculture was validated (high cell viability and proliferation). Activity and differentiation showed strong trends towards synergistic effects between cell types. MSCs reached early mineralisation stage of maturation. The delayed addition of ECs allowed for their attachment on developed MSCs' matrix. The main impact of donor variability could be here the lack of cell proliferation potential with some donors, leading to low differentiation and mechanical cohesion and therefore absence of sheet-like shape successfully obtained with others. We suggest therefore adapting protocols to cell proliferation potentials from one batch of cells to the other in a patient-specific approach.
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Affiliation(s)
- Timothée Baudequin
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu , Compiègne Cedex
| | - Marie Naudot
- Normal and Pathological Lymphocytes and Cancer, EA4666, Université de Picardie Jules Verne, Amiens, France
| | - Sébastien Dupont
- Normal and Pathological Lymphocytes and Cancer, EA4666, Université de Picardie Jules Verne, Amiens, France.,UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France
| | - Sylvie Testelin
- Service de Chirurgie maxillo-faciale, CHU Amiens Picardie Sud, Amiens, France
| | - Bernard Devauchelle
- Service de Chirurgie maxillo-faciale, CHU Amiens Picardie Sud, Amiens, France
| | - Fahmi Bedoui
- Université de technologie de Compiègne, CNRS, Roberval (Mechanics energy and electricity), Centre de recherche Royallieu, Compiègne Cedex
| | - Jean-Pierre Marolleau
- Normal and Pathological Lymphocytes and Cancer, EA4666, Université de Picardie Jules Verne, Amiens, France
| | - Cécile Legallais
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu , Compiègne Cedex
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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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Identification of ALP+/CD73+ defining markers for enhanced osteogenic potential in human adipose-derived mesenchymal stromal cells by mass cytometry. Stem Cell Res Ther 2021; 12:7. [PMID: 33407847 PMCID: PMC7789251 DOI: 10.1186/s13287-020-02044-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/23/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The impressive progress in the field of stem cell research in the past decades has provided the ground for the development of cell-based therapy. Mesenchymal stromal cells obtained from adipose tissue (AD-MSCs) represent a viable source for the development of cell-based therapies. However, the heterogeneity and variable differentiation ability of AD-MSCs depend on the cellular composition and represent a strong limitation for their use in therapeutic applications. In order to fully understand the cellular composition of MSC preparations, it would be essential to analyze AD-MSCs at single-cell level. METHOD Recent advances in single-cell technologies have opened the way for high-dimensional, high-throughput, and high-resolution measurements of biological systems. We made use of the cytometry by time-of-flight (CyTOF) technology to explore the cellular composition of 17 human AD-MSCs, interrogating 31 markers at single-cell level. Subcellular composition of the AD-MSCs was investigated in their naïve state as well as during osteogenic commitment, via unsupervised dimensionality reduction as well as supervised representation learning approaches. RESULT This study showed a high heterogeneity and variability in the subcellular composition of AD-MSCs upon isolation and prolonged culture. Algorithm-guided identification of emerging subpopulations during osteogenic differentiation of AD-MSCs allowed the identification of an ALP+/CD73+ subpopulation of cells with enhanced osteogenic differentiation potential. We could demonstrate in vitro that the sorted ALP+/CD73+ subpopulation exhibited enhanced osteogenic potential and is moreover fundamental for osteogenic lineage commitment. We finally showed that this subpopulation was present in freshly isolated human adipose-derived stromal vascular fractions (SVFs) and that could ultimately be used for cell therapies. CONCLUSION The data obtained reveal, at single-cell level, the heterogeneity of AD-MSCs from several donors and highlight how cellular composition impacts the osteogenic differentiation capacity. The marker combination (ALP/CD73) can not only be used to assess the differentiation potential of undifferentiated AD-MSC preparations, but also could be employed to prospectively enrich AD-MSCs from the stromal vascular fraction of human adipose tissue for therapeutic applications.
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Genova T, Roato I, Carossa M, Motta C, Cavagnetto D, Mussano F. Advances on Bone Substitutes through 3D Bioprinting. Int J Mol Sci 2020; 21:E7012. [PMID: 32977633 PMCID: PMC7582371 DOI: 10.3390/ijms21197012] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 12/21/2022] Open
Abstract
Reconstruction of bony defects is challenging when conventional grafting methods are used because of their intrinsic limitations (biological cost and/or biological properties). Bone regeneration techniques are rapidly evolving since the introduction of three-dimensional (3D) bioprinting. Bone tissue engineering is a branch of regenerative medicine that aims to find new solutions to treat bone defects, which can be repaired by 3D printed living tissues. Its aim is to overcome the limitations of conventional treatment options by improving osteoinduction and osteoconduction. Several techniques of bone bioprinting have been developed: inkjet, extrusion, and light-based 3D printers are nowadays available. Bioinks, i.e., the printing materials, also presented an evolution over the years. It seems that these new technologies might be extremely promising for bone regeneration. The purpose of the present review is to give a comprehensive summary of the past, the present, and future developments of bone bioprinting and bioinks, focusing the attention on crucial aspects of bone bioprinting such as selecting cell sources and attaining a viable vascularization within the newly printed bone. The main bioprinters currently available on the market and their characteristics have been taken into consideration, as well.
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Affiliation(s)
- Tullio Genova
- Department of Life Sciences and Systems Biology, University of Torino, via Accademia Albertina 13, 10123 Torino, Italy;
- Department of Surgical Sciences, University of Torino, via Nizza 230, 10126 Torino, Italy; (I.R.); (M.C.); (C.M.); (F.M.)
| | - Ilaria Roato
- Department of Surgical Sciences, University of Torino, via Nizza 230, 10126 Torino, Italy; (I.R.); (M.C.); (C.M.); (F.M.)
- Center for Research and Medical Studies, A.O.U. Città della Salute e della Scienza, 10100 Turin, Italy
| | - Massimo Carossa
- Department of Surgical Sciences, University of Torino, via Nizza 230, 10126 Torino, Italy; (I.R.); (M.C.); (C.M.); (F.M.)
| | - Chiara Motta
- Department of Surgical Sciences, University of Torino, via Nizza 230, 10126 Torino, Italy; (I.R.); (M.C.); (C.M.); (F.M.)
| | - Davide Cavagnetto
- Department of Surgical Sciences, University of Torino, via Nizza 230, 10126 Torino, Italy; (I.R.); (M.C.); (C.M.); (F.M.)
| | - Federico Mussano
- Department of Surgical Sciences, University of Torino, via Nizza 230, 10126 Torino, Italy; (I.R.); (M.C.); (C.M.); (F.M.)
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9
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Ibrahim A, Rodriguez-Florez N, Gardner OFW, Zucchelli E, New SEP, Borghi A, Dunaway D, Bulstrode NW, Ferretti P. Three-dimensional environment and vascularization induce osteogenic maturation of human adipose-derived stem cells comparable to that of bone-derived progenitors. Stem Cells Transl Med 2020; 9:1651-1666. [PMID: 32639692 PMCID: PMC7695642 DOI: 10.1002/sctm.19-0207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 05/26/2020] [Accepted: 06/10/2020] [Indexed: 12/12/2022] Open
Abstract
While human adipose‐derived stem cells (hADSCs) are known to possess osteogenic differentiation potential, the bone tissues formed are generally considered rudimentary and immature compared with those made by bone‐derived precursor cells such as human bone marrow‐derived mesenchymal stem cells (hBMSCs) and less commonly studied human calvarium osteoprogenitor cells (hOPs). Traditional differentiation protocols have tended to focus on osteoinduction of hADSCs through the addition of osteogenic differentiation media or use of stimulatory bioactive scaffolds which have not resulted in mature bone formation. Here, we tested the hypothesis that by reproducing the physical as well as biochemical bone microenvironment through the use of three‐dimensional (3D) culture and vascularization we could enhance osteogenic maturation in hADSCs. In addition to biomolecular characterization, we performed structural analysis through extracellular collagen alignment and mineral density in our bone tissue engineered samples to evaluate osteogenic maturation. We further compared bone formed by hADSCs, hBMSCs, and hOPs against mature human pediatric calvarial bone, yet not extensively investigated. Although bone generated by all three cell types was still less mature than native pediatric bone, a fibrin‐based 3D microenvironment together with vascularization boosted osteogenic maturation of hADSC making it similar to that of bone‐derived osteoprogenitors. This demonstrates the important role of vascularization and 3D culture in driving osteogenic maturation of cells easily available but constitutively less committed to this lineage and suggests a crucial avenue for recreating the bone microenvironment for tissue engineering of mature craniofacial bone tissues from pediatric hADSCs, as well as hBMSCs and hOPs.
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Affiliation(s)
- Amel Ibrahim
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Naiara Rodriguez-Florez
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,TECNUN Escuela de Ingenieros, Universidad de Navarra, San Sebastian, Spain
| | - Oliver F W Gardner
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Eleonora Zucchelli
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Sophie E P New
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Alessandro Borghi
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - David Dunaway
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Neil W Bulstrode
- Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Patrizia Ferretti
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
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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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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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13
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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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Baudequin T, Tabrizian M. Multilineage Constructs for Scaffold-Based Tissue Engineering: A Review of Tissue-Specific Challenges. Adv Healthc Mater 2018; 7. [PMID: 29193897 DOI: 10.1002/adhm.201700734] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 09/28/2017] [Indexed: 12/11/2022]
Abstract
There is a growing interest in the regeneration of tissue in interfacial regions, where biological, physical, and chemical attributes vary across tissue type. The simultaneous use of distinct cell lineages can help in developing in vitro structures, analogous to native composite tissues. This literature review gathers the recent reports that have investigated multiple cell types of various sources and lineages in a coculture system for tissue-engineered constructs. Such studies aim at mimicking the native organization of tissues and their interfaces, and/or to improve the development of complex tissue substitutes. This paper thus distinguishes itself from those focusing on technical aspects of coculturing for a single specific tissue. The first part of this review is dedicated to variables of cocultured tissue engineering such as scaffold, cells, and in vitro culture environment. Next, tissue-specific coculture methods and approaches are covered for the most studied tissues. Finally, cross-analysis is performed to highlight emerging trends in coculture principles and to discuss how tissue-specific challenges can inspire new approaches for regeneration of different interfaces to improve the outcomes of various tissue engineering strategies.
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Affiliation(s)
- Timothée Baudequin
- Faculty of Medicine; Biomat'X Laboratory; Department of Biomedical Engineering; McGill University; 740 ave. Dr. Penfield, Room 4300 Montréal QC H3A 0G1 Québec Canada
| | - Maryam Tabrizian
- Faculty of Medicine; Biomat'X Laboratory; Department of Biomedical Engineering; McGill University; 740 ave. Dr. Penfield, Room 4300 Montréal QC H3A 0G1 Québec Canada
- Faculty of Dentistry; McGill University; 3775 rue University, Room 313/308B Montréal QC H3A 2B4 Québec Canada
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15
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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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Ngadiman NHA, Noordin MY, Idris A, Kurniawan D. A review of evolution of electrospun tissue engineering scaffold: From two dimensions to three dimensions. Proc Inst Mech Eng H 2017; 231:597-616. [DOI: 10.1177/0954411917699021] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The potential of electrospinning process to fabricate ultrafine fibers as building blocks for tissue engineering scaffolds is well recognized. The scaffold construct produced by electrospinning process depends on the quality of the fibers. In electrospinning, material selection and parameter setting are among many factors that contribute to the quality of the ultrafine fibers, which eventually determine the performance of the tissue engineering scaffolds. The major challenge of conventional electrospun scaffolds is the nature of electrospinning process which can only produce two-dimensional electrospun mats, hence limiting their applications. Researchers have started to focus on overcoming this limitation by combining electrospinning with other techniques to fabricate three-dimensional scaffold constructs. This article reviews various polymeric materials and their composites/blends that have been successfully electrospun for tissue engineering scaffolds, their mechanical properties, and the various parameters settings that influence the fiber morphology. This review also highlights the secondary processes to electrospinning that have been used to develop three-dimensional tissue engineering scaffolds as well as the steps undertaken to overcome electrospinning limitations.
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Affiliation(s)
| | - MY Noordin
- Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Ani Idris
- Faculty of Chemical & Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Denni Kurniawan
- Department of Mechanical Engineering, Curtin University, Miri, Malaysia
- Department of Mechanical, Robotics and Energy Engineering, Dongguk University, Seoul, Korea
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Bienek DR, Tutak W, Skrtic D. Bioactive Polymeric Materials for Tissue Repair. J Funct Biomater 2017; 8:E4. [PMID: 28134776 PMCID: PMC5371877 DOI: 10.3390/jfb8010004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/10/2017] [Accepted: 01/18/2017] [Indexed: 12/24/2022] Open
Abstract
Bioactive polymeric materials based on calcium phosphates have tremendous appeal for hard tissue repair because of their well-documented biocompatibility. Amorphous calcium phosphate (ACP)-based ones additionally protect against unwanted demineralization and actively support regeneration of hard tissue minerals. Our group has been investigating the structure/composition/property relationships of ACP polymeric composites for the last two decades. Here, we present ACP's dispersion in a polymer matrix and the fine-tuning of the resin affects the physicochemical, mechanical, and biological properties of ACP polymeric composites. These studies illustrate how the filler/resin interface and monomer/polymer molecular structure affect the material's critical properties, such as ion release and mechanical strength. We also present evidence of the remineralization efficacy of ACP composites when exposed to accelerated acidic challenges representative of oral environment conditions. The utility of ACP has recently been extended to include airbrushing as a platform technology for fabrication of nanofiber scaffolds. These studies, focused on assessing the feasibility of incorporating ACP into various polymer fibers, also included the release kinetics of bioactive calcium and phosphate ions from nanofibers and evaluate the biorelevance of the polymeric ACP fiber networks. We also discuss the potential for future integration of the existing ACP scaffolds into therapeutic delivery systems used in the precision medicine field.
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Affiliation(s)
- Diane R Bienek
- Volpe Research Center, ADA Foundation, Gaithersburg, MD 20899, USA.
| | - Wojtek Tutak
- Volpe Research Center, ADA Foundation, Gaithersburg, MD 20899, USA.
- Food and Drug Administration, Silver Spring, MD 20993, USA.
| | - Drago Skrtic
- Volpe Research Center, ADA Foundation, Gaithersburg, MD 20899, USA.
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18
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Wang D, Xuan L, Zhong H, Gong Y, Shi X, Ye F, Li Y, Jiang Q. Incorporation of well-dispersed calcium phosphate nanoparticles into PLGA electrospun nanofibers to enhance the osteogenic induction potential. RSC Adv 2017. [DOI: 10.1039/c7ra01865g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
PAA modified Zn-doped HAp-like calcium phosphate (PAA-CaP/Zn) nanoparticles were homogeneously distributed in PLGA electrospun nanofibers, and enhanced the osteogenic differentiation of rADSCs.
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Affiliation(s)
- Dandan Wang
- Department of Biomedical Engineering
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou
| | - Liuyang Xuan
- Department of Biomedical Engineering
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou
| | - Huixiang Zhong
- Department of Biomedical Engineering
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou
| | - Yihong Gong
- Department of Biomedical Engineering
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou
| | - Xuetao Shi
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Feng Ye
- Key Laboratory of Molecular Biology for Infectious Diseases
- Ministry of Education of China
- The Second Affiliated Hospital
- Chongqing Medical University
- Chongqing
| | - Yan Li
- Department of Biomedical Engineering
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou
| | - Qing Jiang
- Department of Biomedical Engineering
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou
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19
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20
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Kon E, Robinson D, Verdonk P, Drobnic M, Patrascu JM, Dulic O, Gavrilovic G, Filardo G. A novel aragonite-based scaffold for osteochondral regeneration: early experience on human implants and technical developments. Injury 2016; 47 Suppl 6:S27-S32. [PMID: 28040083 DOI: 10.1016/s0020-1383(16)30836-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [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 Chondral and osteochondral lesions represent a debilitating disease. Untreated lesions remain a risk factor for more extensive joint damage. The objective of this clinical study is to evaluate safety and early results of an aragonite-based scaffold used for osteochondral unit repair, by analysing both clinical outcome and MRI results, as well as the benefits of the procedure optimization through novel tapered shaped implants. METHODS A crystalline aragonite bi-phasic scaffold was implanted in patients affected by focal chondral-osteochondral knee lesions of the condyle and trochlea. Twenty-one patients (17 men, 4 women with a mean age of 31.0 ± 8.6 years) without severe OA received tapered shaped implants for the treatment of 2.5 ±1.7 cm2 sized defects. The control group consisted of 76 patients selected according to the same criteria from a database of patients who previously underwent implantation of cylindrical-shaped implants. The clinical outcome of all patients was evaluated with the IKDC subjective score, the Lysholm score, and all 5 KOOS subscales administered preoperatively and at 6 and 12 months after surgery, while MRI evaluation was performed at the 12 month follow-up. RESULTS A statistically significant improvement in all clinical scores was documented both in the tapered implants and the cylindrical group. No difference could be detected in the comparison between the improvement obtained with the two implant types, neither in the clinical nor in imaging evaluations. A difference could be detected instead in terms of revision rate, which was lower in the tapered implant group with no implant removal - 0% vs 8/76-10.5% failures in the cylindrical implants. CONCLUSIONS This study highlighted both safety and potential of a novel aragonite-based scaffold for the treatment of chondral and osteochondral lesions in humans. A tapered shape relative to the cylindrical shaped implant design, improved the scaffold's safety profile. Tapered scaffolds maintain the clinical improvement observed in cylindrical implants while reducing the postoperative risk of revision surgery. This aragonite-based implant was associated with a significant clinical improvement at the 12 month follow-up. Moreover, MRI findings revealed graft integration with good bone and cartilage formation.
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Affiliation(s)
- Elizaveta Kon
- NanoBiotecnology Lab, I Clinic - Rizzoli Orthopaedic Institute, Bologna, Italy.
| | - Dror Robinson
- Department of Orthopedics, Hasharon Hospital affiliated with Tel Aviv University, Rabin Medical Center, Petah Tikwa, Israel
| | - Peter Verdonk
- Antwerp Orthopaedic Center, Monica Hospitals, Stevenslei, Deurne, Belgium; Department of Orthopaedic Surgery, Faculty of Medicine, Antwerp University, Wilrijkstraat, Edegem, Belgium
| | - Matej Drobnic
- Department of Orthopedic Surgery, University Medical Centre Ljubljana, Slovenia
| | - Jenel Mariano Patrascu
- Spitalul Clinic Judeţean de Urgenţă "Pius Brînzeu" Timişoara Bulevardul Liviu Rebreanu, Timişoara, Romania
| | | | | | - Giuseppe Filardo
- NanoBiotecnology Lab, I Clinic - Rizzoli Orthopaedic Institute, Bologna, Italy
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Abstract
Mesenchymal stem cells (MSC) from bone marrow and periosteum are known to be heavily involved in fracture repair and bone regeneration is thought to be impaired when the surrounding skeletal muscle is damaged. Recent literature from mouse in vivo models suggest that cells originating from skeletal muscle can occupy a fracture callus during open fracture repair when periosteum is compromised. This systematic review set out to ascertain whether there are MSCs residing in human skeletal muscle and whether cells from human skeletal muscle are capable of forming bone in vitro and in vivo. Original journal articles were selected if they included the terms "skeletal muscle" and "mesenchymal" and used human skeletal muscle samples. Between January 2005 and September 2016, 1000 articles were screened of which, 16 studies met the inclusion criteria for this review. Human skeletal muscle derived cells (SMDC) had the MSC phenotype, positive for CD73, CD90 and CD105 and negative for CD34 and CD45 as well as the potential to differentiate into osteoblasts, chondrocytes and adipocytes in vitro. In addition, SMDC could form bone in vivo when seeded onto an osteoinductive scaffold. A subset of SMDC expressing a pericyte marker (PDGFRα) also expressed the MSC phenotype and were more osteogenic in vivo in comparison to SMDC expressing a satellite cell marker (CD56). The studies included were limited through variation of SMDC extraction methods and tissue culture conditions, which causes heterogeneuous cell cultures. Also, in vitro differentiation assays were not always carried out with bone marrow MSC positive controls. Current evidence suggests that cells with the MSC phenotype reside within human skeletal muscle and are capable of in vivo bone formation in combination with osteoinductive bone scaffolds. This has implications of future development of guided bone regeneration strategies to enhance large bone defect repair, whereby more thought into whether the fracture site should be "blocked" from the skeletal muscle should be carried out.
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22
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López-Pliego EM, Giráldez-Sánchez MÁ, Mora-Macías J, Reina-Romo E, Domínguez J. Histological evolution of the regenerate during bone transport: an experimental study in sheep. Injury 2016; 47 Suppl 3:S7-S14. [PMID: 27692111 DOI: 10.1016/s0020-1383(16)30600-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Bone transport (BT) for segmentary bone defects is a well-known technique as it enables correction with new bone formation, which is similar to the previous bone. Despite the high number of experimental studies of distraction osteogenesis in bone lengthening, the types of ossification and histological changes that occur in the regenerate of the bone transport process remain controversial. OBJECTIVE The aim of this study is to provide the complete evolution of tissues and the types of ossification in the regenerate during the different phases of bone formation after BT until the end of the remodelling period. METHODS A histological study was performed using ten adult sheep that were submitted to BT. The types of ossification as well as the evolution of different tissues in the regenerate were determined using histomorphometry and inmunohistochemical studies. The evolution of trabeculae thickness, osteoblast and osteoclast densities, relationship between collagen types and changes in vascularization were also studied. RESULTS Ossification was primarily intramembranous, with some focus of endochondral ossification in isolated animals. The cell counts showed a progression of cellular activity from the periphery to the centre, presenting the same progression as the growth of bone trabeculae, whose trabeculae thickness was quadrupled at the end of remodelling. Inmunohistochemical studies confirmed the prevalence of type I collagen and the ratio of the Type I/Type II collagen ratio was found to be 2.48. The percentages of the vascularized areas were proximally higher than distally in all animals, but distal zone obtained higher rates than the central region. CONCLUSIONS Bone transport regenerate exhibits a centripetal ossification model and a mixed pattern with predominance of intramembranous over endochondral ossification. The data obtained resemble partially to those found in models of bone lengthening applied to large animals. This study provides a detailed structural characterization of the newly formed tissue, which may help to explain the development of the regenerate of bone transport in humans. It will also serve for future mechanobiological models that may aid research on the effect of loading or distractor stiffness in clinical results.
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Affiliation(s)
- Esperanza Macarena López-Pliego
- Clinical Orthopaedics, Trauma Surgery and Rheumatology Management Unit, Hospital Universitario Virgen del Rocío, Seville, Spain.
| | - Miguel Ángel Giráldez-Sánchez
- Clinical Orthopaedics, Trauma Surgery and Rheumatology Management Unit, Hospital Universitario Virgen del Rocío, Seville, Spain
| | - Juan Mora-Macías
- Department of Mechanical Engineering, University of Seville, Escuela Superior de Ingenieros, Seville, Spain
| | - Esther Reina-Romo
- Department of Mechanical Engineering, University of Seville, Escuela Superior de Ingenieros, Seville, Spain
| | - Jaime Domínguez
- Department of Mechanical Engineering, University of Seville, Escuela Superior de Ingenieros, Seville, Spain
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Genova T, Munaron L, Carossa S, Mussano F. Overcoming physical constraints in bone engineering: ‘the importance of being vascularized’. J Biomater Appl 2015; 30:940-51. [DOI: 10.1177/0885328215616749] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bone plays several physiological functions and is the second most commonly transplanted tissue after blood. Since the treatment of large bone defects is still unsatisfactory, researchers have endeavoured to obtain scaffolds able to release growth and differentiation factors for mesenchymal stem cells, osteoblasts and endothelial cells in order to obtain faster mineralization and prompt a reliable vascularization. Nowadays, the application of osteoblastic cultures spans from cell physiology and pharmacology to cytocompatibility measurement and osteogenic potential evaluation of novel biomaterials. To overcome the simple traditional monocultures in vitro, co-cultures of osteogenic and vasculogenic precursors were introduced with very interesting results. Increasingly complex culture systems have been developed, where cells are seeded on proper scaffolds and stimulated so as to mimic the physiological conditions more accurately. These bioreactors aim at enabling bone regeneration by incorporating different cells types into bio-inspired materials within a surveilled habitat. This review is focused on the most recent developments in the organomimetic cultures of osteoblasts and vascular endothelial cells for bone tissue engineering.
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Affiliation(s)
- T Genova
- Department of Life Sciences and Systems Biology, University of Turin, Italy
- C.I.R. Dental School, Department of Surgical Sciences, University of Turin, Italy
| | - L Munaron
- Department of Life Sciences and Systems Biology, University of Turin, Italy
| | - S Carossa
- C.I.R. Dental School, Department of Surgical Sciences, University of Turin, Italy
| | - F Mussano
- C.I.R. Dental School, Department of Surgical Sciences, University of Turin, Italy
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Abstract
Bone defects can be congenital or acquired resulting from trauma, infection, neoplasm and failed arthroplasty. The osseous reconstruction of these defects is challenging. Unfortunately, none of the current techniques for the repair of bone defects has proven to be fully satisfactory. Bone tissue engineering (BTE) is the field of regenerative medicine (RM) that focuses on alternative treatment options for bone defects that will ideally address all the issues of the traditional techniques in treating large bone defects. However, current techniques of BTE is laborious and have their own shortcomings. More recently, 2D and 3D bone printing has been introduced to overcome most of the limitations of bone grafts and BTE. So far, results are extremely promising, setting new frontiers in the management of bone defects.
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König MA, Canepa DD, Cadosch D, Casanova E, Heinzelmann M, Rittirsch D, Plecko M, Hemmi S, Simmen HP, Cinelli P, Wanner GA. Direct transplantation of native pericytes from adipose tissue: A new perspective to stimulate healing in critical size bone defects. Cytotherapy 2015; 18:41-52. [PMID: 26563474 DOI: 10.1016/j.jcyt.2015.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/22/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND AIMS Fractures with a critical size bone defect (e.g., open fracture with segmental bone loss) are associated with high rates of delayed union and non-union. The prevention and treatment of these complications remain a serious issue in trauma and orthopaedic surgery. Autologous cancellous bone grafting is a well-established and widely used technique. However, it has drawbacks related to availability, increased morbidity and insufficient efficacy. Mesenchymal stromal cells can potentially be used to improve fracture healing. In particular, human fat tissue has been identified as a good source of multilineage adipose-derived stem cells, which can be differentiated into osteoblasts. The main issue is that mesenchymal stromal cells are a heterogeneous population of progenitors and lineage-committed cells harboring a broad range of regenerative properties. This heterogeneity is also mirrored in the differentiation potential of these cells. In the present study, we sought to test the possibility to enrich defined subpopulations of stem/progenitor cells for direct therapeutic application without requiring an in vitro expansion. METHODS We enriched a CD146+NG2+CD45- population of pericytes from freshly isolated stromal vascular fraction from mouse fat tissue and tested their osteogenic differentiation capacity in vitro and in vivo in a mouse model for critical size bone injury. RESULTS Our results confirm the ability of enriched CD146+NG2+CD45- cells to efficiently generate osteoblasts in vitro, to colonize cancellous bone scaffolds and to successfully contribute to regeneration of large bone defects in vivo. CONCLUSIONS This study represents proof of principle for the direct use of enriched populations of cells with stem/progenitor identity for therapeutic applications.
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Affiliation(s)
- Matthias A König
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | - Daisy D Canepa
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | - Dieter Cadosch
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | - Elisa Casanova
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | | | - Daniel Rittirsch
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | - Michael Plecko
- Trauma Hospital Graz, Göstinger Strasse 24, A-8020 Graz, Austria
| | - Sonja Hemmi
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | - Hans-Peter Simmen
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland
| | - Paolo Cinelli
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland.
| | - Guido A Wanner
- Division of Trauma Surgery, Center for Clinical Research, University Hospital Zurich, University of Zurich, Sternwartstrasse 14, CH-8091 Zurich, Switzerland.
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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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