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Destrez A, Colin E, Testelin S, Devauchelle B, Dakpé S, Naudot M. Evaluation of a Granular Bone Substitute for Bone Regeneration Using an Optimized In Vivo Alveolar Cleft Model. Bioengineering (Basel) 2023; 10:1035. [PMID: 37760137 PMCID: PMC10525109 DOI: 10.3390/bioengineering10091035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Alveolar cleft is a common congenital deformity that requires surgical intervention, notably using autologous bone grafts in young children. Bone substitutes, in combination with mesenchymal stem cells (MSCs), have shown promise in the repair of these defects. This study aimed to evaluate the regenerative capabilities of a granular bone substitute using an optimized alveolar cleft model. Thirty-six rats underwent a surgical procedure for the creation of a defect filled with a fragment of silicone. After 5 weeks, the silicone was removed and the biomaterial, with or without Wharton's jelly MSCs, was put into the defect, except for the control group. The rats underwent μCT scans immediately and after 4 and 8 weeks. Analyses showed a statistically significant improvement in bone regeneration in the two treatment groups compared with control at weeks 4 and 8, both for bone volume (94.64% ± 10.71% and 91.33% ± 13.30%, vs. 76.09% ± 7.99%) and mineral density (96.13% ± 24.19% and 93.01% ± 27.04%, vs. 51.64% ± 16.51%), but without having fully healed. This study validates our optimized alveolar cleft model in rats, but further work is needed to allow for the use of this granular bone substitute in the treatment of bone defects.
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Affiliation(s)
- Alban Destrez
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Emilien Colin
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Sylvie Testelin
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Bernard Devauchelle
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Stéphanie Dakpé
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Maxillofacial Surgery Department, Amiens University Hospital, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
| | - Marie Naudot
- UR 7516 CHIMERE, University of Picardie Jules Verne, Chemin du Thil, CS 52501, 80025 Amiens, France; (A.D.); (S.T.); (B.D.); (S.D.); (M.N.)
- Institut Faire Faces, Rond-point du Pr Christian Cabrol, 80054 Amiens, France
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Xiao H, Chen X, Liu X, Wen G, Yu Y. Recent advances in decellularized biomaterials for wound healing. Mater Today Bio 2023; 19:100589. [PMID: 36880081 PMCID: PMC9984902 DOI: 10.1016/j.mtbio.2023.100589] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023] Open
Abstract
The skin is one of the most essential organs in the human body, interacting with the external environment and shielding the body from diseases and excessive water loss. Thus, the loss of the integrity of large portions of the skin due to injury and illness may lead to significant disabilities and even death. Decellularized biomaterials derived from the extracellular matrix of tissues and organs are natural biomaterials with large quantities of bioactive macromolecules and peptides, which possess excellent physical structures and sophisticated biomolecules, and thus, promote wound healing and skin regeneration. Here, we highlighted the applications of decellularized materials in wound repair. First, the wound-healing process was reviewed. Second, we elucidated the mechanisms of several extracellular matrix constitutes in facilitating wound healing. Third, the major categories of decellularized materials in the treatment of cutaneous wounds in numerous preclinical models and over decades of clinical practice were elaborated. Finally, we discussed the current hurdles in the field and anticipated the future challenges and novel avenues for research on decellularized biomaterials-based wound treatment.
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Affiliation(s)
- Huimin Xiao
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Xin Chen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Xuanzhe Liu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Gen Wen
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Yaling Yu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.,Institute of Microsurgery on Extremities, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
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AKDAG O, Erkol EE, Yildiran G, Koplay TG, SUTCU M, Tosun Z. Reconstruction of Previously Failed Alveolar Bone Grafts with Medial Femoral Condyle Flap in Pediatric Cleft Lip and Palate Patients. J Plast Reconstr Aesthet Surg 2022; 75:3768-3773. [DOI: 10.1016/j.bjps.2022.06.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 04/26/2022] [Accepted: 06/07/2022] [Indexed: 11/28/2022]
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Wickramasinghe ML, Dias GJ, Premadasa KMGP. A novel classification of bone graft materials. J Biomed Mater Res B Appl Biomater 2022; 110:1724-1749. [DOI: 10.1002/jbm.b.35029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 12/19/2022]
Affiliation(s)
- Maduni L. Wickramasinghe
- Department of Biomedical Engineering General Sir John Kotelawala Defense University Ratmalana Sri Lanka
| | - George J. Dias
- Department of Anatomy, School of Medical Sciences University of Otago Dunedin New Zealand
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Kandalam U, Kawai T, Ravindran G, Brockman R, Romero J, Munro M, Ortiz J, Heidari A, Thomas R, Kuriakose S, Naglieri C, Ejtemai S, Kaltman SI. Predifferentiated Gingival Stem Cell-Induced Bone Regeneration in Rat Alveolar Bone Defect Model. Tissue Eng Part A 2020; 27:424-436. [PMID: 32729362 PMCID: PMC8098763 DOI: 10.1089/ten.tea.2020.0052] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cleft alveolus, a common birth defect of the maxillary bone, affects one in 700 live births every year. This defect is traditionally restored by autogenous bone grafts or allografts, which may possibly cause complications. Cell-based therapies using the mesenchymal stem cells (MSCs) derived from human gingiva (gingiva-derived mesenchymal stem cells [GMSCs]) is attracting the research interest due to their highly proliferative and multilineage differentiation capacity. Undifferentiated GMSCs expressed high level of MSC-distinctive surface antigens, including CD73, CD105, CD90, and CD166. Importantly, GMSCs induced with osteogenic medium for a week increased the surface markers of osteogenic phenotypes, such as CD10, CD92, and CD140b, indicating their osteogenic potential. The objective of this study was to assess the bone regenerative efficacy of predifferentiated GMSCs (dGMSCs) toward an osteogenic lineage in combination with a self-assembling hydrogel scaffold PuraMatrix™ (PM) and/or bone morphogenetic protein 2 (BMP2), on a rodent model of maxillary alveolar bone defect. A critical size maxillary alveolar defect of 7 mm × 1 mm × 1 mm was surgically created in athymic nude rats. The defect was filled with either PM/BMP2 or PM/dGMSCs or the combination of three (PM/dGMSCs/BMP2) and the bone regeneration was evaluated at 4 and 8 weeks postsurgery. New bone formation was evaluated by microcomputed tomography and histology using Hematoxylin and Eosin staining. The results demonstrated the absence of spontaneous bone healing, either at 4 or 8 weeks postsurgery in the defect group. However, the PM/dGMSCs/BMP2 group showed significant enhancement in bone regeneration at 4 and 8 weeks postsurgery, compared with the transplantation of individual material/cells alone. Apart from developing the smallest critical size defect, results showed that PM/dGMSCs/BMP2 could serve as a promising option for the regeneration of bone in the cranio/maxillofacial region in humans.
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Affiliation(s)
- Umadevi Kandalam
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Toshihisa Kawai
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Geeta Ravindran
- NSU Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA.,Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ross Brockman
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA.,Oral and Maxillofacial, LSU Health Sciences Center New Orleans, New Orleans, Louisiana, USA
| | - Jorge Romero
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Matthew Munro
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Julian Ortiz
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Alireza Heidari
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Ron Thomas
- NSU Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Sajish Kuriakose
- Department of Oral Medicine and Oral Surgery and College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Christopher Naglieri
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Shaileen Ejtemai
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Steven I Kaltman
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA.,Department of Oral and Maxillofacial Surgery, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
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Awadeen MA, Al-Belasy FA, Ameen LE, Helal ME, Grawish ME. Early therapeutic effect of platelet-rich fibrin combined with allogeneic bone marrow-derived stem cells on rats' critical-sized mandibular defects. World J Stem Cells 2020; 12:55-69. [PMID: 32110275 PMCID: PMC7031757 DOI: 10.4252/wjsc.v12.i1.55] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/13/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Critically sized bone defects represent a significant challenge to orthopaedic surgeons worldwide. These defects generally result from severe trauma or resection of a whole large tumour. Autologous bone grafts are the current gold standard for the reconstruction of such defects. However, due to increased patient morbidity and the need for a second operative site, other lines of treatment should be introduced. To find alternative unconventional therapies to manage such defects, bone tissue engineering using a combination of suitable bioactive factors, cells, and biocompatible scaffolds offers a promising new approach for bone regeneration.
AIM To evaluate the healing capacity of platelet-rich fibrin (PRF) membranes seeded with allogeneic mesenchymal bone marrow-derived stem cells (BMSCs) on critically sized mandibular defects in a rat model.
METHODS Sixty-three Sprague Dawley rats were subjected to bilateral bone defects of critical size in the mandibles created by a 5-mm diameter trephine bur. Rats were allocated to three equal groups of 21 rats each. Group I bone defects were irrigated with normal saline and designed as negative controls. Defects of group II were grafted with PRF membranes and served as positive controls, while defects of group III were grafted with PRF membranes seeded with allogeneic BMSCs. Seven rats from each group were killed at 1, 2 and 4 wk. The mandibles were dissected and prepared for routine haematoxylin and eosin (HE) staining, Masson's trichrome staining and CD68 immunohistochemical staining.
RESULTS Four weeks postoperatively, the percentage area of newly formed bone was significantly higher in group III (0.88 ± 0.02) than in groups I (0.02 ± 0.00) and II (0.60 ± 0.02). The amount of granulation tissue formation was lower in group III (0.12 ± 0.02) than in groups I (0.20 ± 0.02) and II (0.40 ± 0.02). The number of inflammatory cells was lower in group III (0.29 ± 0.03) than in groups I (4.82 ± 0.08) and II (3.09 ± 0.07).
CONCLUSION Bone regenerative quality of critically sized mandibular bone defects in rats was better promoted by PRF membranes seeded with BMSCs than with PRF membranes alone.
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Affiliation(s)
- Muhammad A Awadeen
- Department of Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Mansoura 11152, Egypt
| | - Fouad A Al-Belasy
- Department of Oral Surgery and Anesthesia, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Mansoura 11152, Egypt
| | - Laila E Ameen
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
| | - Mohamad E Helal
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
| | - Mohammed E Grawish
- Department of Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Mansoura 11152, Egypt
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
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Canellas JVDS, da Costa RC, Breves RC, de Oliveira GP, Figueredo CMDS, Fischer RG, Thole AA, Medeiros PJD, Ritto FG. Tomographic and histomorphometric evaluation of socket healing after tooth extraction using leukocyte- and platelet-rich fibrin: A randomized, single-blind, controlled clinical trial. J Craniomaxillofac Surg 2019; 48:24-32. [PMID: 31810848 DOI: 10.1016/j.jcms.2019.11.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 10/15/2019] [Accepted: 11/18/2019] [Indexed: 10/25/2022] Open
Abstract
The use of platelet concentrate in alveolar ridge preservation has been broadly studied. However, no randomized clinical trials with histomorphometric analysis and low risk of bias are available in the literature. We conducted a prospective, single-blind, parallel, randomized, controlled clinical trial to evaluate the efficacy of leukocyte- and platelet-rich fibrin (L-PRF) in socket preservation after tooth extraction. Additionally, the effect of L-PRF on bone formation was analyzed histologically using bone biopsy specimens obtained during implant placement. A total of 48 subjects who underwent a non-molar tooth extraction were randomly assigned to the L-PRF group (n = 24) or the control group (n = 24). Cone-beam computed tomographies were performed immediately after tooth extraction and at 3 months after tooth extraction, prior to implant surgery. A significant difference in bone resorption was registered 1 mm below the crest: 0.93 ± 0.9 mm for the L-PRF group and 2.27 ± 1.2 mm for the control group (p = 0.0001). Histomorphometric analysis showed a higher percentage of new bone formation in the L-PRF group compared with the control group. The values were 55.96 ± 11.97% and 39.69 ± 11.13%, respectively (p = 0.00001). These findings indicate that the administration of L-PRF should always be considered when socket preservation is planned (Clinicaltrials.gov NCT03408418).
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Affiliation(s)
- João Vitor Dos Santos Canellas
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil.
| | - Rafael Cabral da Costa
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil
| | - Ricardo Caldeira Breves
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil
| | - Genilza Pereira de Oliveira
- Department of Histology and Embryology, Biology Institute, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil
| | - Carlos Marcelo da Silva Figueredo
- Department of Periodontology, Faculty of Dentistry, Rio de Janeiro State University, Av. Prof. Manoel de Abreu 444, 3° andar, Rio de Janeiro, RJ 20550-170, Brazil
| | - Ricardo Guimaraes Fischer
- Department of Periodontology, Faculty of Dentistry, Rio de Janeiro State University, Av. Prof. Manoel de Abreu 444, 3° andar, Rio de Janeiro, RJ 20550-170, Brazil
| | - Alessandra Alves Thole
- Department of Histology and Embryology, Biology Institute, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil
| | - Paulo Jose D'Albuquerque Medeiros
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil
| | - Fabio Gamboa Ritto
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Rio de Janeiro State University, Rua Boulevard 28 de Setembro, 157 Vila Isabel, Rio de Janeiro, RJ 20551-030, Brazil
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Application of Hydroxycholesterols for Alveolar Cleft Osteoplasty in a Rodent Model. Plast Reconstr Surg 2019; 143:1385-1395. [PMID: 30789479 DOI: 10.1097/prs.0000000000005528] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Bone morphogenetic proteins (BMPs) have played a central role in the regenerative therapies for bone reconstruction, including alveolar cleft and craniofacial surgery. However, the high cost and significant adverse effect of BMPs limit their broad application. Hydroxycholesterols, naturally occurring products of cholesterol oxidation, are a promising alternative to BMPs. The authors studied the osteogenic capability of hydroxycholesterols on human mesenchymal stem cells and the impact of hydroxycholesterols on a rodent alveolar cleft model. METHODS Human mesenchymal stem cells were treated with control medium or osteogenic medium with or without hydroxycholesterols. Evaluation of cellular osteogenic activity was performed. A critical-size alveolar cleft was created and one of the following treatment options was assigned randomly to each defect: collagen sponge incorporated with hydroxycholesterols, BMP-2, or no treatment. Bone regeneration was assessed by means of radiologic and histologic analyses and local inflammation in the cleft evaluated. Moreover, the role of the hedgehog signaling pathway in hydroxycholesterol-mediated osteogenesis was examined. RESULTS All cellular osteogenic activities were significantly increased on human mesenchymal stem cells treated with hydroxycholesterols relative to others. The alveolar cleft treated with collagen sponge with hydroxycholesterols and BMP-2 demonstrated robust bone regeneration. The hydroxycholesterol group revealed histologically complete bridging of the alveolar defect with architecturally mature new bone. The inflammatory responses were less in the hydroxycholesterol group compared with the BMP-2 group. Induction of hydroxycholesterol-mediated in vitro osteogenesis and in vivo bone regeneration were attenuated by hedgehog signaling inhibitor, implicating involvement of the hedgehog signaling pathway. CONCLUSION Hydroxycholesterols may represent a viable alternative to BMP-2 in bone tissue engineering for alveolar cleft.
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Effects of incorporation of granule-lyophilised platelet-rich fibrin into polyvinyl alcohol hydrogel on wound healing. Sci Rep 2018; 8:14042. [PMID: 30232343 PMCID: PMC6145885 DOI: 10.1038/s41598-018-32208-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 09/04/2018] [Indexed: 01/26/2023] Open
Abstract
Dressings are commonly used to treat skin wounds. In this study, we aimed to develop a new scaffold composed of a polyvinyl alcohol (PVA) hydrogel containing granule-lyophilised platelet-rich fibrin (G-L-PRF) as a dressing. G-L-PRF was prepared by freeze-drying and was then incorporated into PVA hydrogel by freezing-thawing. Notably, the mechanical strength and degradation rate of the scaffold were found to be related to G-L-PRF concentrations, reaching 6.451 × 10−2 MPa and 17–22%, respectively, at a concentration of 1%. However, the strength decreased and the degradation was accelerated when the G-L-PRF concentration was over 1%. The elastic properties and biocompatibility of the scaffold were independent of G-L-PRF concentration, and both showed excellent elasticity and biocompatibility. The release of vascular endothelial growth factor and platelet-derived growth factor-AB was no significant time dependent. Additionally, application of 1% G-L-PRF/PVA to acute full-thickness dorsal skin wounds accelerated wound closure at days 7 and 9. Healing also increased on day 11. Histological and immunohistochemical analyses showed that the scaffold enhanced granulation tissue, maturity, collagen deposition, and new vessel formation. These results demonstrated that the prepared G-L-PRF/PVA scaffolds accelerated wound healing in acute full-thickness skin wounds, suggesting potential applications as an ideal wound dressing.
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Effect of Concentrated Growth Factor (CGF) on the Promotion of Osteogenesis in Bone Marrow Stromal Cells (BMSC) in vivo. Sci Rep 2018; 8:5876. [PMID: 29651154 PMCID: PMC5897572 DOI: 10.1038/s41598-018-24364-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 03/27/2018] [Indexed: 12/17/2022] Open
Abstract
The therapeutic method traditionally used in bone defect reconstruction is autologous bone grafting. The most common problems affecting this type of repair approach are bone absorption and donor trauma. The approach taken in this study overcomes these problems. Bone marrow stromal cells (BMSCs) provided the crucial seed cells. Fibrin biological scaffolds were formed by combining the BMSCs with concentrated growth factor (CGF). BMSCs were isolated from Wistar rat femurs; CGF was prepared from rat heart blood. Five repair groups were created for comparative purposes: (A) CGF + BMSCs; (B) CGF; (C) collagen + BMSCs; (D) collagen; (E) blank. After three months, the rats were sacrificed, and histopathology and three-dimensional CT images produced. Bone regeneration was significantly higher in the (A) CGF + BMSC group; osteogenesis was lower in the (B) CGF and (C) collagen + BMSC groups, at very similar levels; the (D) collagen and (E) blank groups scored the lowest results. Our research suggests that combining CGF with BMSCs leads to the formation of fibrin scaffolds that have a powerful effect on osteogenesis as well as a subsidiary angiogenic effect. SEM images of the CGF scaffolds cultured with BMSCs confirmed good CGF biocompatibility. The superior osteoinductive activity of the CGF + BMSC combination makes it an excellent biomaterial for bone regeneration.
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New biomaterials versus traditional techniques: advances in cleft palate reconstruction. Curr Opin Otolaryngol Head Neck Surg 2018; 24:330-5. [PMID: 27261944 DOI: 10.1097/moo.0000000000000279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Cleft lip and palate still remains one of the most common congenital anomalies, and consequently surgical correction of these anomalies is still commonplace. Despite numerous existing surgical techniques having good outcomes, it is still recognized that the morbidity of certain surgical procedures and success rates regarding outcomes can be improved. The purpose of this review is to evaluate new literature and techniques compared with the time tested procedures that are commonly used. RECENT FINDINGS As technology continues to advance, the understanding of details regarding biochemical pathways responsible for the development of cleft defects and also the efficacy of biomaterials that can be used in their correction are being discovered and better understood. Many studies have been conducted in both animal and human study participants that further the understanding of these questions. The efficacy and benefit of newly devised biomaterials seems to indicate that these biomaterials are a viable adjunct and often an alternative in the treatment of cleft palate patients. SUMMARY In this review of recent literature, the discussion begins with a review of the more traditional and widely accepted iliac crest bone grafting and then evolves into a discussion of several animal and human studies to delineate the progress being made in this field. The literature exploring the details regarding biochemical pathways and cellular mediators that are involved in cleft formation, as well as biomaterials used in surgical repair are evaluated. The findings in the literature suggest that there is a bright future in better understanding the cause of cleft formation on a molecular level and associated attempts that can be made in altering some of these factors along with discovering new biomaterials that can be a useful adjunct to existing techniques.
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Kamal M, Andersson L, Tolba R, Al-Asfour A, Bartella AK, Gremse F, Rosenhain S, Hölzle F, Kessler P, Lethaus B. Bone regeneration using composite non-demineralized xenogenic dentin with beta-tricalcium phosphate in experimental alveolar cleft repair in a rabbit model. J Transl Med 2017; 15:263. [PMID: 29274638 PMCID: PMC5742260 DOI: 10.1186/s12967-017-1369-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 12/15/2017] [Indexed: 01/24/2023] Open
Abstract
Background Alveolar cleft repair is performed via bone grafting procedure to restore the dental arch continuity. A suitable bone substitute materials should possess osteoinductive and osteoconductive properties, to promote new bone formation, along with a slowly resorbable scaffold that is subsequently replaced with functionally viable bone. Calcium phosphate biomaterials have long proved their efficacy as bone replacement materials. Dentin in several forms has also demonstrated its possibility to be used as bone graft replacement material in several studies. The purpose of this study was to evaluate bone regeneration pattern and quantify bone formation after grafting pre-established experimental alveolar clefts defects model in rabbits using composite xenogenic dentin and β-TCP in comparison to β-TCP alone. Methods Unilateral alveolar cleft defects were created in 16 New Zealand rabbits according to previously described methodology. Alveolar clefts were allowed 8 weeks healing period. 8 defects were filled with β-TCP, whereas 8 defects filled with composite xenogenic dentin with β-TCP. Bone regeneration of the healed defects was compared at the 8 weeks after intervention. Quantification of bone formation was analyzed using micro-computed tomography (µCT) and histomorphometric analysis. Results µCT and histomorphometric analysis revealed that defects filled with composite dentin/β-TCP showed statistically higher bone volume fraction, bone mineral density and percentage residual graft volume when compared to β-TCP alone. An improved surgical handling of the composite dentin/β-TCP graft was also noted. Conclusions Composite xenogenic dentin/β-TCP putty expresses enhanced bone regeneration compared to β-TCP alone in the reconstruction of rabbit alveolar clefts defects.
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Affiliation(s)
- Mohammad Kamal
- Department of Cranio-Maxillofacial Surgery and GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, P. Debyelaan, Postbus 5800, 6202 AZ, Maastricht, The Netherlands. .,Department of Oral and Maxillofacial Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany.
| | - Lars Andersson
- Department of Surgical Sciences, Health Sciences Center, Kuwait University, 13110, Safat, Kuwait
| | - Rene Tolba
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Adel Al-Asfour
- Department of Surgical Sciences, Health Sciences Center, Kuwait University, 13110, Safat, Kuwait
| | - Alexander K Bartella
- Department of Oral and Maxillofacial Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Felix Gremse
- Department of Experimental Molecular Imaging, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Stefanie Rosenhain
- Department of Experimental Molecular Imaging, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Frank Hölzle
- Department of Oral and Maxillofacial Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Peter Kessler
- Department of Cranio-Maxillofacial Surgery and GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, P. Debyelaan, Postbus 5800, 6202 AZ, Maastricht, The Netherlands
| | - Bernd Lethaus
- Department of Oral and Maxillofacial Surgery, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
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Movahedian Attar B, Naghdi N, Etemadi Sh M, Mehdizadeh M. Chin Symphysis Bone, Allograft, and Platelet-Rich Fibrin: Is the Combination Effective in Repair of Alveolar Cleft? J Oral Maxillofac Surg 2017; 75:1026-1035. [DOI: 10.1016/j.joms.2016.12.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/09/2016] [Accepted: 12/17/2016] [Indexed: 10/20/2022]
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POLYPROPYLENE MESH IMPLANT AND A-PRF MEMBRANE FOR RECONSTRUCTION OF THE TRAUMATIC DEFECTS OF THE LATERAL AND BACK WALL OF THE MAXILLARY SINUS. EUREKA: HEALTH SCIENCES 2017. [DOI: 10.21303/2504-5679.2017.00280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract. Background: The aim of this study was to investigate the possible use of Polypropylene mesh implant and A-PRF membrane for covering the defects of the lateral and back wall of the maxillary sinus after its traumatic damages.
Materials: non-resorbable Polypropylene mesh implant was used in 10 patients as a barrier membrane for prevention of adipose tissue herniation into maxillary sinus.
Method: 3 D CT was used for assessment of bone fragments position and volumetric parameters of the maxillary sinus before and after surgical repair.
Result: Postoperative 3-D CT after 2 months demonstrated effective reestablishment of anatomical configuration of sinus and its volume, absence of pathological inflammatory changes of the sinus mucosa.
Conclusion: Polypropylene mesh implant provides effective barrier between soft tissues and maxillary sinus, due to its strength characteristic and biocompatibility.
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Martín-Piedra MA, Alaminos M, Fernández-Valadés-Gámez R, España-López A, Liceras-Liceras E, Sánchez-Montesinos I, Martínez-Plaza A, Sánchez-Quevedo MC, Fernández-Valadés R, Garzón I. Development of a multilayered palate substitute in rabbits: a histochemical ex vivo and in vivo analysis. Histochem Cell Biol 2016; 147:377-388. [PMID: 27600719 DOI: 10.1007/s00418-016-1489-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2016] [Indexed: 01/08/2023]
Abstract
Current tissue engineering technology focuses on developing simple tissues, whereas multilayered structures comprising several tissue types have rarely been described. We developed a highly biomimetic multilayered palate substitute with bone and oral mucosa tissues using rabbit cells and biomaterials subjected to nanotechnological techniques based on plastic compression. This novel palate substitute was autologously grafted in vivo, and histological and histochemical analyses were used to evaluate biointegration, cell function, and cell differentiation in the multilayered palate substitute. The three-dimensional structure of the multilayered palate substitute was histologically similar to control tissues, but the ex vivo level of cell and tissue differentiation were low as determined by the absence of epithelial differentiation although cytokeratins 4 and 13 were expressed. In vivo grafting was associated with greater cell differentiation, epithelial stratification, and maturation, but the expression of cytokeratins 4, 13, 5, and 19 at did not reach control tissue levels. Histochemical analysis of the oral mucosa stroma and bone detected weak signals for proteoglycans, elastic and collagen fibers, mineralization deposits and osteocalcin in the multilayered palate substitute cultured ex vivo. However, in vivo grafting was able to induce cell and tissue differentiation, although the expression levels of these components were always significantly lower than those found in controls, except for collagen in the bone layer. These results suggest that generation of a full-thickness multilayered palate substitute is achievable and that tissues become partially differentiated upon in vivo grafting.
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Affiliation(s)
- M A Martín-Piedra
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| | - M Alaminos
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| | - R Fernández-Valadés-Gámez
- Division of Oral and Maxillofacial Surgery, Gregorio Marañón University General Hospital, Madrid, Spain.
- PhD Program in Clinical Medicine and Public Health, University of Granada, Granada, Spain.
| | - A España-López
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University of Granada Hospital Complex, Granada, Spain
| | - E Liceras-Liceras
- Division of Pediatric Surgery, University of Granada Hospital Complex, Granada, Spain
| | - I Sánchez-Montesinos
- Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| | - A Martínez-Plaza
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University of Granada Hospital Complex, Granada, Spain
| | - M C Sánchez-Quevedo
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| | - R Fernández-Valadés
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University of Granada Hospital Complex, Granada, Spain
- Division of Pediatric Surgery, University of Granada Hospital Complex, Granada, Spain
| | - I Garzón
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
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