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Gunes D, Oksuz S, Koseoglu RD, Gokce E. Comparison of the Effect of Platelet-rich Plasma (PRP) and Fat Graft on Autologous Bone Grafting in a Randomized-controlled Experimental Skull Model. J Craniofac Surg 2024; 35:1298-1304. [PMID: 38710066 DOI: 10.1097/scs.0000000000010166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/20/2024] [Indexed: 05/08/2024] Open
Abstract
Gold standard method for the treatment of critical-sized bone defects is the autogenous bone grafting procedure. A number of new and potentially useful adjuncts currently are being investigated to enhance the success of bone grafting. We propose to evaluate the effect of the most known and easily obtained 2 biological materials, fat graft and platelet-rich plasma (PRP), on bone graft healing. Twenty-seven New Zealand male rabbits were included in this randomized, controlled study. Two-sided 15-mm diameter bone defects were created in the parietal bones and the bones taken were replaced right-to-left and vice versa with 1 control group, 1 fat graft applied group, and the last one PRP applied group. Histologic evaluation and 3-dimensional maxillofacial computerized tomography were performed and bone density was calculated. In radiologic analysis, bone density was significantly different in the PRP group compared with the control and fat graft group in the 12th week ( P <0.05). In histologic scoring analysis, the PRP group had a better score than the control and fat graft group, while the fat graft group was worse than the control group in the 6th week ( P <0.05). The addition of PRP had a positive effect whereas fat graft had a negative effect on bone graft healing compared with the control group.
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Affiliation(s)
- Deniz Gunes
- Plastic, Reconstructive and Aesthetic Surgery Clinic, Aydin State Hospital, Aydin
| | - Sinan Oksuz
- Department of Plastic, Reconstructive and Aesthetic Surgery, University of Health Sciences, Gulhane Medical School, Ankara
| | | | - Erkan Gokce
- Department of Radiology, Gaziosmanpasa University, School of Medicine, Tokat, Turkey
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2
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Tangporncharoen R, Silathapanasakul A, Tragoonlugkana P, Pruksapong C, Tawonsawatruk T, Supokawej A. The extracts of osteoblast developed from adipose-derived stem cell and its role in osteogenesis. J Orthop Surg Res 2024; 19:255. [PMID: 38650022 PMCID: PMC11034088 DOI: 10.1186/s13018-024-04747-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
Cell-based therapy has become an achievable choice in regenerative medicines, particularly for musculoskeletal disorders. Adipose-derived stem cells (ASCs) are an outstanding resource because of their ability and functions. Nevertheless, the use of cells for treatment comes with difficulties in operation and safety. The immunological barrier is also a major limitation of cell therapy, which can lead to unexpected results. Cell-derived products, such as cell extracts, have gained a lot of attention to overcome these limitations. The goal of this study was to optimize the production of ASC-osteoblast extracts as well as their involvement in osteogenesis. The extracts were prepared using a freeze-thaw method with varying temperatures and durations. Overall, osteogenic-associated proteins and osteoinductive potential of the extracts prepared from the osteogenic-induced ASCs were assessed. Our results demonstrated that the freeze-thaw approach is practicable for cell extracts production, with minor differences in temperature and duration having no effect on protein concentration. The ASC-osteoblast extracts contain a significant level of essential specialized proteins that promote osteogenicity. Hence, the freeze-thaw method is applicable for extract preparation and ASC-osteoblast extracts may be beneficial as an optional facilitating biologics in bone anabolic treatment and bone regeneration.
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Affiliation(s)
- Rattanawan Tangporncharoen
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Atiruj Silathapanasakul
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Patcharapa Tragoonlugkana
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Chatchai Pruksapong
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Pramongkutklao College of Medicine, Bangkok, 10400, Thailand
| | - Tulyapruek Tawonsawatruk
- Department of Orthopaedics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Aungkura Supokawej
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand.
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Ong JL, Shiels SC, Pearson J, Karajgar S, Miar S, Chiou G, Appleford M, Wenke JC, Guda T. Spatial rhBMP2 delivery from hydroxyapatite scaffolds sustains bone regeneration in rabbit radius. Tissue Eng Part C Methods 2022; 28:363-374. [PMID: 35615881 DOI: 10.1089/ten.tec.2022.0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Regenerating large bone defects requires a multi-faceted approach combining optimal scaffold designs with appropriate growth factor delivery. Supraphysiological doses of recombinant human bone morphogenetic protein 2(rhBMP2); typically used for the regeneration of large bone defects clinically in conjunction with an acellular collagen sponge (ACS), have resulted in many complications. In the current study, we develop a hydroxyapatite/collagen I (HA/Col) scaffold to improve the mechanical properties of the HA scaffolds while maintaining open connected porosity. Varying rhBMP2 dosages were then delivered from a collagenous periosteal membrane and paired with HA or HA/Col scaffolds to treat critical sized (15mm) diaphyseal radial defect in New Zealand white rabbits. The groups examined were ACS+76µg rhBMP2 (clinically used INFUSE dosage), HA+76µg rhBMP2, HA+15µg rhBMP2, HA/Col+15µg rhBMP2 and HA/Col+15µg rhBMP2+bone marrow derived stromal cells (bMSCs). After 8 weeks of implantation, all regenerated bones were evaluated using micro computed tomography, histology, histomorphometry and torsional testing. It was observed that the bone volume regenerated in the HA/Col + 15 µg rhBMP2 group was significantly higher than that in the groups with 76µg rhBMP2. The same scaffold and growth factor combination resulted in the highest bone mineral density of the regenerated bone, and the most bone apposition on the scaffold surface. Both the HA and HA/Col scaffolds paired with 15 µg rhBMP2 had sustained ingrowth of the mineralization front after 2 weeks compared to the groups with 76µg rhBMP2 which had far greater mineralization in the first 2 weeks after implantation. Complete bridging of the defect site and no significant differences in torsional strength, stiffness or angle at failure was observed across all groups. No benefit of additional bMSC seeding was observed on any of the quantified metrics, while bone-implant apposition was reduced in the cell seeded group. This study demonstrated that the controlled spatial delivery of rhBMP2 at the periosteum at significantly lower doses can be used as a strategy to improve bone regeneration around space maintaining scaffolds.
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Affiliation(s)
- Joo L Ong
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States;
| | - Stefanie C Shiels
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States.,US Army Institute of Surgical Research, 110230, Fort Sam Houston, Texas, United States;
| | - Joseph Pearson
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States.,Georgia Institute of Technology, 1372, Wallace H Coulter Department of Biomedical Engineering, Atlanta, Georgia, United States;
| | - Suyash Karajgar
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States;
| | - Solaleh Miar
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States;
| | - Gennifer Chiou
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States;
| | - Mark Appleford
- The University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States;
| | - Joseph C Wenke
- US Army Institute of Surgical Research, 110230, Fort Sam Houston, Texas, United States.,The University of Texas Medical Branch at Galveston, 12338, Department of Orthopedic Surgery and Rehabilitation, Galveston, Texas, United States;
| | - Teja Guda
- University of Texas at San Antonio, 12346, Biomedical Engineering and Chemical Engineering, San Antonio, Texas, United States;
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Dalisson B, Charbonnier B, Aoude A, Gilardino M, Harvey E, Makhoul N, Barralet J. Skeletal regeneration for segmental bone loss: Vascularised grafts, analogues and surrogates. Acta Biomater 2021; 136:37-55. [PMID: 34626818 DOI: 10.1016/j.actbio.2021.09.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/25/2021] [Accepted: 09/28/2021] [Indexed: 02/08/2023]
Abstract
Massive segmental bone defects (SBD) are mostly treated by removing the fibula and transplanting it complete with blood supply. While revolutionary 50 years ago, this remains the standard treatment. This review considers different strategies to repair SBD and emerging potential replacements for this highly invasive procedure. Prior to the technical breakthrough of microsurgery, researchers in the 1960s and 1970s had begun to make considerable progress in developing non autologous routes to repairing SBD. While the breaktthrough of vascularised bone transplantation solved the immediate problem of a lack of reliable repair strategies, much of their prior work is still relevant today. We challenge the assumption that mimicry is necessary or likely to be successful and instead point to the utility of quite crude (from a materials technology perspective), approaches. Together there are quite compelling indications that the body can regenerate entire bone segments with few or no exogenous factors. This is important, as there is a limit to how expensive a bone repair can be and still be widely available to all patients since cost restraints within healthcare systems are not likely to diminish in the near future. STATEMENT OF SIGNIFICANCE: This review is significant because it is a multidisciplinary view of several surgeons and scientists as to what is driving improvement in segmental bone defect repair, why many approaches to date have not succeeded and why some quite basic approaches can be as effective as they are. While there are many reviews of the literature of grafting and bone repair the relative lack of substantial improvement and slow rate of progress in clinical translation is often overlooked and we seek to challenge the reader to consider the issue more broadly.
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Le Q, Madhu V, Hart JM, Farber CR, Zunder ER, Dighe AS, Cui Q. Current evidence on potential of adipose derived stem cells to enhance bone regeneration and future projection. World J Stem Cells 2021; 13:1248-1277. [PMID: 34630861 PMCID: PMC8474721 DOI: 10.4252/wjsc.v13.i9.1248] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/22/2021] [Accepted: 08/18/2021] [Indexed: 02/06/2023] Open
Abstract
Injuries to the postnatal skeleton are naturally repaired through successive steps involving specific cell types in a process collectively termed “bone regeneration”. Although complex, bone regeneration occurs through a series of well-orchestrated stages wherein endogenous bone stem cells play a central role. In most situations, bone regeneration is successful; however, there are instances when it fails and creates non-healing injuries or fracture nonunion requiring surgical or therapeutic interventions. Transplantation of adult or mesenchymal stem cells (MSCs) defined by the International Society for Cell and Gene Therapy (ISCT) as CD105+CD90+CD73+CD45-CD34-CD14orCD11b-CD79αorCD19-HLA-DR- is being investigated as an attractive therapy for bone regeneration throughout the world. MSCs isolated from adipose tissue, adipose-derived stem cells (ADSCs), are gaining increasing attention since this is the most abundant source of adult stem cells and the isolation process for ADSCs is straightforward. Currently, there is not a single Food and Drug Administration (FDA) approved ADSCs product for bone regeneration. Although the safety of ADSCs is established from their usage in numerous clinical trials, the bone-forming potential of ADSCs and MSCs, in general, is highly controversial. Growing evidence suggests that the ISCT defined phenotype may not represent bona fide osteoprogenitors. Transplantation of both ADSCs and the CD105- sub-population of ADSCs has been reported to induce bone regeneration. Most notably, cells expressing other markers such as CD146, AlphaV, CD200, PDPN, CD164, CXCR4, and PDGFRα have been shown to represent osteogenic sub-population within ADSCs. Amongst other strategies to improve the bone-forming ability of ADSCs, modulation of VEGF, TGF-β1 and BMP signaling pathways of ADSCs has shown promising results. The U.S. FDA reveals that 73% of Investigational New Drug applications for stem cell-based products rely on CD105 expression as the “positive” marker for adult stem cells. A concerted effort involving the scientific community, clinicians, industries, and regulatory bodies to redefine ADSCs using powerful selection markers and strategies to modulate signaling pathways of ADSCs will speed up the therapeutic use of ADSCs for bone regeneration.
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Affiliation(s)
- Quang Le
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Vedavathi Madhu
- Orthopaedic Surgery Research, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Joseph M Hart
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Charles R Farber
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA 22908, United States
- Departments of Public Health Sciences and Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, United States
| | - Eli R Zunder
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, United States
| | - Abhijit S Dighe
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Quanjun Cui
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
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Najdanović JG, Cvetković VJ, Stojanović ST, Vukelić-Nikolić MĐ, Živković JM, Najman SJ. Vascularization and osteogenesis in ectopically implanted bone tissue-engineered constructs with endothelial and osteogenic differentiated adipose-derived stem cells. World J Stem Cells 2021; 13:91-114. [PMID: 33584982 PMCID: PMC7859989 DOI: 10.4252/wjsc.v13.i1.91] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/01/2020] [Accepted: 11/17/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A major problem in the healing of bone defects is insufficient or absent blood supply within the defect. To overcome this challenging problem, a plethora of approaches within bone tissue engineering have been developed recently. Bearing in mind that the interplay of various diffusible factors released by endothelial cells (ECs) and osteoblasts (OBs) have a pivotal role in bone growth and regeneration and that adjacent ECs and OBs also communicate directly through gap junctions, we set the focus on the simultaneous application of these cell types together with platelet-rich plasma (PRP) as a growth factor reservoir within ectopic bone tissue engineering constructs.
AIM To vascularize and examine osteogenesis in bone tissue engineering constructs enriched with PRP and adipose-derived stem cells (ASCs) induced into ECs and OBs.
METHODS ASCs isolated from adipose tissue, induced in vitro into ECs, OBs or just expanded were used for implant construction as followed: BPEO, endothelial and osteogenic differentiated ASCs with PRP and bone mineral matrix; BPUI, uninduced ASCs with PRP and bone mineral matrix; BC (control), only bone mineral matrix. At 1, 2, 4 and 8 wk after subcutaneous implantation in mice, implants were extracted and endothelial-related and bone-related gene expression were analyzed, while histological analyses were performed after 2 and 8 wk.
RESULTS The percentage of vascularization was significantly higher in BC compared to BPUI and BPEO constructs 2 and 8 wk after implantation. BC had the lowest endothelial-related gene expression, weaker osteocalcin immunoexpression and Spp1 expression compared to BPUI and BPEO. Endothelial-related gene expression and osteocalcin immunoexpression were higher in BPUI compared to BC and BPEO. BPEO had a higher percentage of vascularization compared to BPUI and the highest CD31 immunoexpression among examined constructs. Except Vwf, endothelial-related gene expression in BPEO had a later onset and was upregulated and well-balanced during in vivo incubation that induced late onset of Spp1 expression and pronounced osteocalcin immunoexpression at 2 and 8 wk. Tissue regression was noticed in BPEO constructs after 8 wk.
CONCLUSION Ectopically implanted BPEO constructs had a favorable impact on vascularization and osteogenesis, but tissue regression imposed the need for discovering a more optimal EC/OB ratio prior to considerations for clinical applications.
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Affiliation(s)
- Jelena G Najdanović
- Department of Biology and Human Genetics; Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Niš 18108, Serbia
| | - Vladimir J Cvetković
- Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, Niš 18106, Serbia
| | - Sanja T Stojanović
- Department of Biology and Human Genetics; Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Niš 18108, Serbia
| | - Marija Đ Vukelić-Nikolić
- Department of Biology and Human Genetics; Scientific Research Center for Biomedicine; Faculty of Medicine, University of Niš, Niš 18108, Serbia
| | - Jelena M Živković
- Department of Biology and Human Genetics; Scientific Research Center for Biomedicine; Faculty of Medicine, University of Niš, Niš 18108, Serbia
| | - Stevo J Najman
- Department of Biology and Human Genetics; Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Niš 18108, Serbia
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Kamat P, Frueh FS, McLuckie M, Sanchez-Macedo N, Wolint P, Lindenblatt N, Plock JA, Calcagni M, Buschmann J. Adipose tissue and the vascularization of biomaterials: Stem cells, microvascular fragments and nanofat-a review. Cytotherapy 2020; 22:400-411. [PMID: 32507607 DOI: 10.1016/j.jcyt.2020.03.433] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/27/2020] [Accepted: 03/12/2020] [Indexed: 12/13/2022]
Abstract
Tissue defects in the human body after trauma and injury require precise reconstruction to regain function. Hence, there is a great demand for clinically translatable approaches with materials that are both biocompatible and biodegradable. They should also be able to adequately integrate within the tissue through sufficient vascularization. Adipose tissue is abundant and easily accessible. It is a valuable tissue source in regenerative medicine and tissue engineering, especially with regard to its angiogenic potential. Derivatives of adipose tissue, such as microfat, nanofat, microvascular fragments, stromal vascular fraction and stem cells, are commonly used in research, but also clinically to enhance the vascularization of implants and grafts at defect sites. In plastic surgery, adipose tissue is harvested via liposuction and can be manipulated in three ways (macro-, micro- and nanofat) in the operating room, depending on its ultimate use. Whereas macro- and microfat are used as a filling material for soft tissue injuries, nanofat is an injectable viscous extract that primarily induces tissue remodeling because it is rich in growth factors and stem cells. In contrast to microfat that adds volume to a defect site, nanofat has the potential to be easily combined with scaffold materials due to its liquid and homogenous consistency and is particularly attractive for blood vessel formation. The same is true for microvascular fragments that are easily isolated from adipose tissue through collagenase digestion. In preclinical animal models, it has been convincingly shown that these vascular fragments inosculate with host vessels and subsequently accelerate scaffold perfusion and host tissue integration. Adipose tissue is also an ideal source of stem cells. It yields larger quantities of cells than any other source and is easier to access for both the patient and doctor compared with other sources such as bone marrow. They are often used for tissue regeneration in combination with biomaterials. Adipose-derived stem cells can be applied unmodified or as single cell suspensions. However, certain pretreatments, such as cultivation under hypoxic conditions or three-dimensional spheroids production, may provide substantial benefit with regard to subsequent vascularization in vivo due to induced growth factor production. In this narrative review, derivatives of adipose tissue and the vascularization of biomaterials are addressed in a comprehensive approach, including several sizes of derivatives, such as whole fat flaps for soft tissue engineering, nanofat or stem cells, their secretome and exosomes. Taken together, it can be concluded that adipose tissue and its fractions down to the molecular level promote, enhance and support vascularization of biomaterials. Therefore, there is a high potential of the individual fat component to be used in regenerative medicine.
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Affiliation(s)
- Pranitha Kamat
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland; Department of Plastic Surgery and Hand Surgery, University of Zurich, Zurich, Switzerland
| | - Florian S Frueh
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Michelle McLuckie
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Nadia Sanchez-Macedo
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Petra Wolint
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Nicole Lindenblatt
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Jan A Plock
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland; Department of Plastic Surgery and Hand Surgery, University of Zurich, Zurich, Switzerland
| | - Maurizio Calcagni
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Johanna Buschmann
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland.
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The m6A methyltransferase METTL3 cooperates with demethylase ALKBH5 to regulate osteogenic differentiation through NF-κB signaling. Mol Cell Biochem 2019; 463:203-210. [PMID: 31643040 DOI: 10.1007/s11010-019-03641-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/11/2019] [Indexed: 12/14/2022]
Abstract
As a m6A methylation modifier, METTL3 is functionally involved in various biological processes. Nevertheless, the role of METTL3 in osteogenesis is not determined up to date. In the current study, METTL3 is identified as a crucial regulator in the progression of osteogenic differentiation. Loss of METTL3 significantly augments calcium deposition and enhances alkaline phosphatase activity of mesenchymal stem cells, uncovering an inhibitory role of METTL3 in osteogenesis. More importantly, the underlying molecular basis by which METTL3 regulates osteogenesis is illustrated. We find that METTL3 positively regulates expression of MYD88, a critical upstream regulator of NF-κB signaling, by facilitating m6A methylation modification to MYD88-RNA, subsequently inducing the activation of NF-κB which is widely regarded as a repressor of osteogenesis and therefore suppressing osteogenic progression. Moreover, the METTL3-mediated m6A methylation is found to be dynamically reversed by the demethylase ALKBH5. In summary, this study highlights the functional importance of METTL3 in osteogenic differentiation and METTL3 may serve as a promising molecular target in regenerative medicine, as well as in the field of bone tissue engineering.
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Bolte J, Vater C, Culla AC, Ahlfeld T, Nowotny J, Kasten P, Disch AC, Goodman SB, Gelinsky M, Stiehler M, Zwingenberger S. Two-step stem cell therapy improves bone regeneration compared to concentrated bone marrow therapy. J Orthop Res 2019; 37:1318-1328. [PMID: 30628121 DOI: 10.1002/jor.24215] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 12/26/2018] [Indexed: 02/04/2023]
Abstract
Adult stem cells are a promising tool to positively influence bone regeneration. Concentrated bone marrow therapy entails isolating osteoprogenitor cells during surgery with, however, only low cells yield. Two step stem cell therapy requires an additional harvesting procedure but generates high numbers of progenitor cells that facilitate osteogenic pre-differentiation. To further improve bone regeneration, stem cell therapy can be combined with growth factors from platelet rich plasma (PRP) or its lysate (PL) to potentially fostering vascularization. The aim of this study was to investigate the effects of bone marrow concentrate (BMC), osteogenic pre-differentiation of mesenchymal stromal cells (MSCs), and PL on bone regeneration and vascularization. Bone marrow from four different healthy human donors was used for either generation of BMC or for isolation of MSCs. Seventy-two mice were randomized to six groups (Control, PL, BMC, BMC + PL, pre-differentiated MSCs, pre-differentiated MSCs + PL). The influence of PL, BMC, and pre-differentiated MSCs was investigated systematically in a 2 mm femoral bone defect model. After a 6-week follow-up, the pre-differentiated MSCs + PL group showed the highest bone volume, highest grade of histological defect healing and highest number of bridged defects with measurable biomechanical stiffness. Using expanded and osteogenically pre-differentiated MSCs for treatment of a critical-size bone defect was favorable with regards to bone regeneration compared to treatment with cells from BMC. The addition of PL alone had no significant influence; therefore the role of PL for bone regeneration remains unclear. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1318-1328, 2019.
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Affiliation(s)
- Julia Bolte
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
| | - Corina Vater
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
| | - Anna Carla Culla
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
| | - Tilman Ahlfeld
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
| | - Jörg Nowotny
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
| | - Philip Kasten
- Orthopädisch Chirurgisches Centrum, Tübingen, Germany
| | - Alexander C Disch
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
| | - Stuart B Goodman
- Department of Orthopaedic Surgery, Stanford University, Stanford, California
| | - Michael Gelinsky
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
| | - Maik Stiehler
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
| | - Stefan Zwingenberger
- University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, Fetscherstraße 74, TU Dresden 01307, Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, University Medicine Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
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10
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Roux BM, Akar B, Zhou W, Stojkova K, Barrera B, Brankov J, Brey EM. Preformed Vascular Networks Survive and Enhance Vascularization in Critical Sized Cranial Defects. Tissue Eng Part A 2018; 24:1603-1615. [PMID: 30019616 DOI: 10.1089/ten.tea.2017.0493] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Vascular networks provide nutrients, oxygen, and progenitor cells that are essential for bone function. It has been proposed that a preformed vascular network may enhance the performance of engineered bone. In this study vascular networks were generated from human umbilical vein endothelial cell and mesenchymal stem cell spheroids encapsulated in fibrin scaffolds, and the stability of preformed vascular networks and their effect on bone regeneration were assessed in an in vivo bone model. Under optimized culture conditions, extensive vessel-like networks formed throughout the scaffolds in vitro. After vascular network formation, the vascularized scaffolds were implanted in a critical sized calvarial defect in nude rats. Immunohistochemical staining for CD31 showed that the preformed vascular networks survived and anastomosed with host tissue within 1 week of implantation. The prevascularized scaffolds enhanced overall vascularization after 1 and 4 weeks. Early bone formation around the perimeter of the defect area was visible in X-ray images of samples after 4 weeks. Prevascularized scaffolds may be a promising strategy for engineering vascularized bone.
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Affiliation(s)
- Brianna M Roux
- 1 Department of Biomedical Engineering, Illinois Institute of Technology , Chicago, Illinois.,2 Research Service, Edward Hines, Jr. V.A. Hospital , Hines, Illinois
| | - Banu Akar
- 1 Department of Biomedical Engineering, Illinois Institute of Technology , Chicago, Illinois.,2 Research Service, Edward Hines, Jr. V.A. Hospital , Hines, Illinois
| | - Wei Zhou
- 1 Department of Biomedical Engineering, Illinois Institute of Technology , Chicago, Illinois
| | - Katerina Stojkova
- 3 Department of Biomedical Engineering, University of Texas at San Antonio , San Antonio, Texas
| | - Beatriz Barrera
- 1 Department of Biomedical Engineering, Illinois Institute of Technology , Chicago, Illinois
| | - Jovan Brankov
- 4 Department of Electrical and Computer Engineering, Illinois Institute of Technology , Chicago, Illinois
| | - Eric M Brey
- 1 Department of Biomedical Engineering, Illinois Institute of Technology , Chicago, Illinois.,3 Department of Biomedical Engineering, University of Texas at San Antonio , San Antonio, Texas.,5 Research Service, Audie L. Murphy Memorial V.A. Hospital , San Antonio, Texas
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11
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Yang H, Hong N, Liu H, Wang J, Li Y, Wu S. Differentiated adipose-derived stem cell cocultures for bone regeneration in RADA16-I in vitro. J Cell Physiol 2018; 233:9458-9472. [PMID: 29995982 DOI: 10.1002/jcp.26838] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 05/10/2018] [Indexed: 02/06/2023]
Abstract
Craniofacial defects can cause morbidness. Adipose-derived stem cells (ADSCs) have shown great promise for osteogeneration and vascularization; therefore cocultures of differentiated ADSCs are explored to increase bone and vessel formation. In this study, ADSCs were induced into osteogenic ADSCs (os-ADSCs) and endothelial ADSCs (endo-ADSCs) cells, which were then cocultured in variable proportions (os-ADSCs/endo-ADSCs = 2:1, 1:1, 1:2). The os-ADSCs in a ratio of 1:1 expressed more ALP, RUNX2 and COL-I, whereas VEGF, vWF and CD31 were upregulated in the endo-ADSCs of this group. Next generation RNA sequencing (RNA-seq) was performed to evaluate the molecular mechanisms of cocultured ADSCs. The os-ADSCs and endo-ADSCs interacted with each other during osteogenic and angiogenic differentiation, especially at the ratio of 1:1, and were regulated by vascular-related genes, cell-mediated genes, bone-related genes and the transforming growth factor β signaling pathway (TGF-β), mitogen-activated protein kinase signaling pathway (MAPK) and wnt signaling pathway (Wnt). Angptl4, apoe, mmp3, bmp6, mmp13 and fgf18 were detected to be up-regulated, and cxcl12 and wnt5a were down-regulated. The results showed that the gene expression levels were consistent with that in RNA-seq. The cells were then seeded into self-assembling peptide RADA16-I scaffolds as cocultures (1:1) and monocultures (ADSCs, os-ADSCs, endo-ADSCs). The results showed that the cells of all groups grew and proliferated well on the scaffolds, and the cocultured group exhibited better osteogeneration and vascularization. In conclusion, cocultured os-ADSCs and endo-ADSCs at the ratio of 1:1 showed strong osteogenic and angiogenic differentiation. There is a great potential for osteogenesis and vascularization by 3D culturing cells in a 1:1 ratio in self-assembling peptide RADA16-I scaffolds, which requires evaluation for bone regeneration in vivo.
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Affiliation(s)
- Huifang Yang
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Nanrui Hong
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Hsiaowei Liu
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Jieda Wang
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Yan Li
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Shuyi Wu
- Department of Prosthodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
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12
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Barba M, Di Taranto G, Lattanzi W. Adipose-derived stem cell therapies for bone regeneration. Expert Opin Biol Ther 2017; 17:677-689. [PMID: 28374644 DOI: 10.1080/14712598.2017.1315403] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Cell-based therapies exploit the heterogeneous and self-sufficient biological environment of stem cells to restore, maintain and improve tissue functions. Adipose-derived stem cells (ASCs) are, to this aim, promising cell types thanks to advantageous isolation procedures, growth kinetics, plasticity and trophic properties. Specifically, bone regeneration represents a suitable, though often challenging, target setting to test and apply ASC-based therapeutic strategies. Areas covered: ASCs are extremely plastic and secrete bioactive peptides that mediate paracrine functions, mediating their trophic actions in vivo. Numerous preclinical studies demonstrated that ASCs improve bone healing. Clinical trials are ongoing to validate the clinical feasibility of these approaches. This review is intended to define the state-of-the-art on ASCs, encompassing the biological features that make them suitable for bone regenerative strategies, and to provide an update on existing preclinical and clinical applications. Expert opinion: ASCs offer numerous advantages over other stem cells in terms of feasibility of clinical translation. Data obtained from in vivo experimentation are encouraging, and clinical trials are ongoing. More robust validations are thus expected to be achieved during the next few years, and will likely pave the way to optimized patient-tailored treatments for bone regeneration.
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Affiliation(s)
- Marta Barba
- a Institute of Anatomy and Cell Biology , Università Cattolica del Sacro Cuore , Rome , Italy
| | - Giuseppe Di Taranto
- b Department of Plastic, Reconstructive and Aesthetic Surgery , University of Rome "Sapienza" , Policlinico Umberto I, Rome , Italy
| | - Wanda Lattanzi
- a Institute of Anatomy and Cell Biology , Università Cattolica del Sacro Cuore , Rome , Italy
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13
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Skubis A, Sikora B, Zmarzły N, Wojdas E, Mazurek U. Adipose-derived stem cells: a review of osteogenesis differentiation. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/fobio-2016-0004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review article provides an overview on adipose-derived stem cells (ADSCs) for implications in bone tissue regeneration. Firstly this article focuses on mesenchymal stem cells (MSCs) which are object of interest in regenerative medicine. Stem cells have unlimited potential for self-renewal and develop into various cell types. They are used for many therapies such as bone tissue regeneration. Adipose tissue is one of the main sources of mesenchymal stem cells (MSCs). Regenerative medicine intends to differentiate ADSC along specific lineage pathways to effect repair of damaged or failing organs. For further clinical applications it is necessary to understand mechanisms involved in ADSCs proliferation and differentiation. Second part of manuscript based on osteogenesis differentiation of stem cells. Bones are highly regenerative organs but there are still many problems with therapy of large bone defects. Sometimes there is necessary to make a replacement or expansion new bone tissue. Stem cells might be a good solution for this especially ADSCs which manage differentiate into osteoblast in in vitro and in vivo conditions.
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14
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Shanbhag S, Pandis N, Mustafa K, Nyengaard JR, Stavropoulos A. Cell Cotransplantation Strategies for Vascularized Craniofacial Bone Tissue Engineering: A Systematic Review and Meta-Analysis of Preclinical In Vivo Studies. TISSUE ENGINEERING PART B-REVIEWS 2016; 23:101-117. [PMID: 27733094 DOI: 10.1089/ten.teb.2016.0283] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The regenerative potential of tissue-engineered bone constructs may be enhanced by in vitro coculture and in vivo cotransplantation of vasculogenic and osteogenic (progenitor) cells. The objective of this study was to systematically review the literature to answer the focused question: In animal models, does cotransplantation of osteogenic and vasculogenic cells enhance bone regeneration in craniofacial defects, compared with solely osteogenic cell-seeded constructs? Following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, electronic databases were searched for controlled animal studies reporting cotransplantation of endothelial cells (ECs) with mesenchymal stem cells (MSCs) or osteoblasts in craniofacial critical size defect (CSD) models. Twenty-two studies were included comparing outcomes of MSC/scaffold versus MSC+EC/scaffold (co)transplantation in calvarial (n = 15) or alveolar (n = 7) CSDs of small (rodents, rabbits) and large animal (minipigs, dogs) models. On average, studies presented with an unclear to high risk of bias. MSCs were derived from autologous, allogeneic, xenogeneic, or human (bone marrow, adipose tissue, periosteum) sources; in six studies, ECs were derived from MSCs by endothelial differentiation. In most studies, MSCs and ECs were cocultured in vitro (2-17 days) before implantation. Coculture enhanced MSC osteogenic differentiation and an optimal MSC:EC seeding ratio of 1:1 was identified. Alloplastic copolymer or composite scaffolds were most often used for in vivo implantation. Random effects meta-analyses were performed for histomorphometric and radiographic new bone formation (%NBF) and vessel formation in rodents' calvarial CSDs. A statistically significant benefit in favor of cotransplantation versus MSC-only transplantation for radiographic %NBF was observed in rat calvarial CSDs (weighted mean difference 7.80% [95% confidence interval: 1.39-14.21]); results for histomorphometric %NBF and vessel formation were inconclusive. Overall, heterogeneity in the meta-analyses was high (I2 > 80%). In summary, craniofacial bone regeneration is enhanced by cotransplantation of vasculogenic and osteogenic cells. Although the direction of treatment outcome is in favor of cotransplantation strategies, the magnitude of treatment effect does not seem to be of relevance, unless proven otherwise in clinical studies.
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Affiliation(s)
- Siddharth Shanbhag
- 1 Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen , Bergen, Norway .,2 Department of Periodontology, Faculty of Odontology, Malmö University , Malmö, Sweden
| | - Nikolaos Pandis
- 3 Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, University of Bern , Bern, Switzerland
| | - Kamal Mustafa
- 1 Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen , Bergen, Norway
| | - Jens R Nyengaard
- 4 Stereology and Electron Microscopy Laboratory, Department of Clinical Medicine, Aarhus University , Aarhus, Denmark
| | - Andreas Stavropoulos
- 2 Department of Periodontology, Faculty of Odontology, Malmö University , Malmö, Sweden
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15
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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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16
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Improving vascularization of engineered bone through the generation of pro-angiogenic effects in co-culture systems. Adv Drug Deliv Rev 2015; 94:116-25. [PMID: 25817732 DOI: 10.1016/j.addr.2015.03.012] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 02/27/2015] [Accepted: 03/20/2015] [Indexed: 01/31/2023]
Abstract
One of the major problems with bone tissue engineering is the development of a rapid vascularization after implantation to supply the growing osteoblast cells with the nutrients to grow and survive as well as to remove waste products. It has been demonstrated that capillary-like structures produced in vitro will anastomose rapidly after implantation and become functioning blood vessels. For this reason, in recent years many studies have examined a variety of human osteoblast and endothelial cell co-culture systems in order to distribute osteoblasts on all parts of the bone scaffold and at the same time provide conditions for the endothelial cells to migrate to form a network of capillary-like structures throughout the osteoblast-colonized scaffold. The movement and proliferation of endothelial cells to form capillary-like structures is known as angiogenesis and is dependent on a variety of pro-angiogenic factors. This review summarizes human 2- and 3-D co-culture models to date, the types and origins of cells used in the co-cultures and the proangiogenic factors that have been identified in the co-culture models.
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17
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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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