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Reconstructive Surgery. J Oral Maxillofac Surg 2023; 81:E263-E299. [PMID: 37833026 DOI: 10.1016/j.joms.2023.06.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
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Melville JC, Rethman B, Kaleem A, Patel N, Marx RE, Tursun R, Shum J, Wong ME, Young S. Tissue Engineering for Mandibular Reconstruction. Atlas Oral Maxillofac Surg Clin North Am 2023; 31:165-176. [PMID: 37500200 DOI: 10.1016/j.cxom.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Affiliation(s)
- James C Melville
- Bernard & Gloria Pepper Katz Department of Oral & Maxillofacial Surgery, Oral & Head and Neck Oncology and Microvascular Reconstructive Surgery, University of Texas School of Dentistry Houston, Houston, TX, USA.
| | - Brian Rethman
- Bernard & Gloria Pepper Katz Department of Oral & Maxillofacial Surgery, University of Texas School of Dentistry Houston, Houston, TX, USA
| | - Arshad Kaleem
- El Paso Head & Neck and Microvascular Surgery, El Paso, TX, USA
| | - Neel Patel
- HCA Florida Head and Neck Oncology & Reconstructive Surgery, Coconut Grove, FL, USA
| | - Robert E Marx
- Department of Oral and Maxillofacial Surgery, University of Miami School of Medicine, Miami, FL, USA
| | | | - Jonathan Shum
- Bernard & Gloria Pepper Katz Department of Oral & Maxillofacial Surgery, Oral & Head and Neck Oncology and Microvascular Reconstructive Surgery, University of Texas School of Dentistry Houston, Houston, TX, USA
| | - Mark E Wong
- Bernard & Gloria Pepper Katz Department of Oral & Maxillofacial Surgery, University of Texas School of Dentistry Houston, Houston, TX, USA
| | - Simon Young
- Bernard & Gloria Pepper Katz Department of Oral & Maxillofacial Surgery, University of Texas School of Dentistry Houston, Houston, TX, USA
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Multiplane osteotomy of the clavicle for symptomatic malunion: a case report of augmentation of healing with bone morphogenetic protein-2. CURRENT ORTHOPAEDIC PRACTICE 2021. [DOI: 10.1097/bco.0000000000001000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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USP1 inhibitor ML323 enhances osteogenic potential of human dental pulp stem cells. Biochem Biophys Res Commun 2020; 530:418-424. [PMID: 32546349 DOI: 10.1016/j.bbrc.2020.05.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/14/2020] [Indexed: 12/17/2022]
Abstract
LIM homeobox 8 (LHX8) is expressed during embryonic development of craniofacial tissues, including bone and teeth. In a previous study, the overexpression of LHX8 inhibited osteodifferentiation of human dental pulp stem cells (DPSCs). In this study, a cDNA microarray analysis was performed to reveal the molecular changes which occur in response to LHX8 overexpression in DPSCs and discover possible targets for an osteoinductive agent. There were 345 differentially expressed genes (DEGs) in response to osteoinductive signaling and 53 DEGs in response to LHX8 overexpression and osteoinductive signaling, respectively. Thirty-eight genes were common in both conditions, and among these, genes upregulated in LHX8 DPSCs but downregulated in osteodifferentiated DPSCs were chosen. Five of them had commercial inhibitors available. Among the tested inhibitors, ML323, which target DNA-binding protein inhibitor ID-1, promoted osteodifferentiation of DPSCs. In conclusion, inhibition of ID-1 led to increased osteogenesis of human DPSCs.
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Peng Y, Li L, Yuan Q, Gu P, You Z, Zhuang A, Bi X. Effect of Bifunctional β Defensin 2-Modified Scaffold on Bone Defect Reconstruction. ACS OMEGA 2020; 5:4302-4312. [PMID: 32149260 PMCID: PMC7057706 DOI: 10.1021/acsomega.9b04249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 02/07/2020] [Indexed: 05/05/2023]
Abstract
Bone tissue engineering has emerged as an effective alternative treatment to the problem of bone defect. To repair a bone defect, antibiosis and osteogenesis are two essential aspects of the repair process. By searching the literature and performing exploratory experiments, we found that β defensin 2 (BD2), with bifunctional properties of antibiosis and osteogenesis, was a feasible alternative for traditional growth factors. The antimicrobial ability of BD2 against Staphylococcus aureus and Escherichia coli was studied by the spread plate and live/dead staining methods (low effective concentration of 20 ng/mL). BD2 was also demonstrated to enhance osteogenesis, with higher messenger RNA (mRNA) and protein expression of the osteogenic markers collagen I (Col1), runt-related transcription factor 2 (Runx2), osteopontin (Opn), and osteocalcin (Ocn) in vitro (1.5-2.5-fold increase compared with the control group in the most effective concentration group), which was consistent with the alkaline phosphatase (ALP) and alizarin red S (ARS) staining results. We implanted poly(sebacoyl diglyceride) (PSeD) combined with BD2 and rat bone tissue-derived mesenchymal stem cells (rBMSCs) under the back skin of rats and found that the inflammatory response was significantly lower with this combination than with the PSeD/rBMSCs scaffold without BD2 and the pure PSeD group and was similar to the control group. Importantly, when assessed in a critical-sized in vivo rat 8 m diameter calvaria defect model, a scaffold we developed combining bifunctional BD2 with porous organic polymer displayed an osteogenic effect that was 160-200% greater than the control group. The in vivo study results revealed a significant osteogenic response and antimicrobial effect and were consistent with the in vitro results. In summary, BD2 displayed a great potential of simultaneously promoting bone regeneration and preventing infection and could provide a viable alternative to traditional growth factors applied in bone defect repair.
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Affiliation(s)
- Yiyu Peng
- Department of Ophthalmology,
Ninth People’s Hospital, Shanghai
Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, P. R. China
| | - Lunhao Li
- Department of Ophthalmology,
Ninth People’s Hospital, Shanghai
Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, P. R. China
| | - Qingyue Yuan
- Department of Ophthalmology,
Ninth People’s Hospital, Shanghai
Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, P. R. China
| | - Ping Gu
- Department of Ophthalmology,
Ninth People’s Hospital, Shanghai
Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, P. R. China
| | - Zhengwei You
- State Key Laboratory for Modification of
Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint
Laboratory of Advanced Fiber and Low-dimension Materials (Donghua
University), College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Ai Zhuang
- Department of Ophthalmology,
Ninth People’s Hospital, Shanghai
Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, P. R. China
- E-mail: . Tel: 18930843344. Fax: +8621-63134218 (A.Z.)
| | - Xiaoping Bi
- Department of Ophthalmology,
Ninth People’s Hospital, Shanghai
Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P. R. China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, P. R. China
- E-mail: . Tel: +8621-63135606. Fax: +8621-63134218 (X.B.)
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Effect of Platelet-Rich Fibrin and Bone Morphogenetic Protein on Dental Implant Stability. J Craniofac Surg 2019; 30:1492-1496. [PMID: 31299751 DOI: 10.1097/scs.0000000000005131] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) and platelet-rich fibrin (PRF) bioactive materials have been used to enhance healing and improve dental implant stability. This study aimed to compare the effect of rhBMP-2 and PRF bioactive materials on dental implant stability at different intervals and to evaluate the correlation of implant length and diameter with implant stability.Two bioactive materials were compared to evaluate their effect on dental implant stability. A total of 32 patients (102 dental implants) were divided into 3 groups: 24 dental implants with bone morphogenetic protein (BMP), 27 dental implants with PRF, and 51 dental implants without BMP or PRF (control group). Data were statistically analyzed to determine the bioactive material with the best effect on implant stability.Implant stability did not significantly differ between the groups immediately after implant insertion (first reading; P > 0.05). The implant stability of the rhBMP-2 group was significantly better than those of the PRF and control groups 6 weeks after implant insertion (second reading; P = 0.001). After 12 weeks, the effect of rhBMP-2 on implant stability was highly significant and better than that of the other groups (third reading; P < 0.001).Dental implants coated with BMP have a better effect on stability than those with PRF alone and those without PRF or BMP.
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Ramly EP, Alfonso AR, Kantar RS, Wang MM, Siso JRD, Ibrahim A, Coelho PG, Flores RL. Safety and Efficacy of Recombinant Human Bone Morphogenetic Protein-2 (rhBMP-2) in Craniofacial Surgery. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2019; 7:e2347. [PMID: 31592029 PMCID: PMC6756658 DOI: 10.1097/gox.0000000000002347] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 05/29/2019] [Indexed: 12/18/2022]
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) is one of the most commonly used osteogenic agents in the craniofacial skeleton. This study reviews the safety and efficacy of rhBMP-2 as applied to craniofacial reconstruction and assesses the level of scientific evidence currently available.
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Affiliation(s)
- Elie P Ramly
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Allyson R Alfonso
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Rami S Kantar
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Maxime M Wang
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - J Rodrigo Diaz Siso
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Amel Ibrahim
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Paulo G Coelho
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Roberto L Flores
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
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Olsson AB, Dillon J, Kolokythas A, Schlott BJ. Reconstructive Surgery. J Oral Maxillofac Surg 2019; 75:e264-e301. [PMID: 28728733 DOI: 10.1016/j.joms.2017.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Herford AS, Lowe I, Jung P. Titanium Mesh Grafting Combined with Recombinant Human Bone Morphogenetic Protein 2 for Alveolar Reconstruction. Oral Maxillofac Surg Clin North Am 2019; 31:309-315. [PMID: 30852177 DOI: 10.1016/j.coms.2018.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
There are several methods of regenerating the maxillary and mandibular ridge to achieve orthoalveolar form with bone grafting procedures, including block onlay grafting and guided bone regeneration. Traditionally, guided bone regeneration has focused on creating a space for bone regeneration to occur. The use of a formed titanium mesh to regenerate alveolar defects was popularized in the 1980s. With the advent of other adjuncts, such as resorbable membranes, and growth factors, such as recombinant human bone morphogenetic protein 2, the predictability of the procedure has increased and a wide variety of defects can be restored using this technology.
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Affiliation(s)
- Alan S Herford
- Department of Oral and Maxillofacial Surgery, Loma Linda University School of Dentistry, 11092 Anderson Street, Loma Linda, CA 92350, USA.
| | - Isaac Lowe
- Department of Oral and Maxillofacial Surgery, Loma Linda University School of Dentistry, 11092 Anderson Street, Loma Linda, CA 92350, USA
| | - Paul Jung
- Department of Oral and Maxillofacial Surgery, Loma Linda University School of Dentistry, 11092 Anderson Street, Loma Linda, CA 92350, USA
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Cruz ACC, Cardozo FTGDS, Magini RDS, Simões CMO. Retinoic acid increases the effect of bone morphogenetic protein type 2 on osteogenic differentiation of human adipose-derived stem cells. J Appl Oral Sci 2019; 27:e20180317. [PMID: 30810639 PMCID: PMC6382324 DOI: 10.1590/1678-7757-2018-0317] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/26/2018] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Bone morphogenetic protein type 2 (BMP-2) and retinoic acid (RA) are osteoinductive factors that stimulate endogenous mechanisms of bone repair which can be applied on management of osseous defects in oral and maxillofacial fields. OBJECTIVE Considering the different results of RA on osteogenesis and its possible use to substitute/potency BMP-2 effects, this study evaluated the outcomes of BMP-2, RA, and BMP-2+RA treatments on in vitro osteogenic differentiation of human adipose-derived stem cells (ASCs) and the signaling pathway(s) involved. MATERIAL AND METHODS ASCs were treated every other day with basic osteogenic medium (OM) alone or supplemented with BMP-2, RA, or BMP-2+RA. Alkaline phosphatase (ALP) activity was determined using the r-nitrophenol method. Extracellular matrix mineralization was evaluated using von Kossa staining and calcium quantification. Expression of osteonectin and osteocalcin mRNA were determined using qPCR. Smad1, Smad4, phosphorylated Smad1/5/8, BMP-4, and BMP-7 proteins expressions were analyzed using western blotting. Signaling pathway was evaluated using the IPA® software. RESULTS RA promoted the highest ALP activity at days 7, 14, 21, and 28, in comparison to BMP-2 and BMP-2+RA. BMP-2+RA best stimulated phosphorylated Smad1/5/8 protein expression at day 7 and Smad4 expression at days 7, 14, 21, and 28. Osteocalcin and osteonectin mRNA expressions were best stimulated by BMP-2+RA at day 7. Matrix mineralization was most improved by BMP-2+RA at days 12 and 32. Additionally, BMP-2+RA promoted the highest BMP signaling pathway activation at days 7 and 14, and demonstrated more activation of differentiation of bone-forming cells than OM alone. CONCLUSIONS In summary, RA increased the effect of BMP-2 on osteogenic differentiation of human ASCs.
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Affiliation(s)
- Ariadne Cristiane Cabral Cruz
- Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Odontologia, Departamento de Odontologia, Florianópolis, Santa Catarina,Brasil
| | | | - Ricardo de Souza Magini
- Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Odontologia, Departamento de Odontologia, Florianópolis, Santa Catarina,Brasil
| | - Cláudia Maria Oliveira Simões
- Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Farmácia, Departamento de Ciências Farmacêuticas, Florianópolis, Santa Catarina,Brasil
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Le BQ, Rai B, Hui Lim ZX, Tan TC, Lin T, Lin Lee JJ, Murali S, Teoh SH, Nurcombe V, Cool SM. A polycaprolactone-β-tricalcium phosphate-heparan sulphate device for cranioplasty. J Craniomaxillofac Surg 2018; 47:341-348. [PMID: 30579746 DOI: 10.1016/j.jcms.2018.11.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/09/2018] [Accepted: 11/12/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Cranioplasty is a surgical procedure used to treat a bone defect or deformity in the skull. To date, there is little consensus on the standard-of-care for graft materials used in such a procedure. Graft materials must have sufficient mechanical strength to protect the underlying brain as well as the ability to integrate and support new bone growth. Also, the ideal graft material should be individually customized to the contours of the defect to ensure a suitable aesthetic outcome for the patient. PURPOSE Customized 3D-printed scaffolds comprising of polycaprolactone-β-tricalcium phosphate (PCL-TCP) have been developed with mechanical properties suitable for cranioplasty. Osteostimulation of PCL-TCP was enhanced through the addition of a bone matrix-mimicking heparan sulphate glycosaminoglycan (HS3) with increased affinity for bone morphogenetic protein-2 (BMP-2). Efficacy of this PCL-TCP/HS3 combination device was assessed in a rat critical-sized calvarial defect model. METHOD Critical-sized defects (5 mm) were created in both parietal bones of 19 Sprague Dawley rats (Male, 450-550 g). Each cranial defect was randomly assigned to 1 of 4 treatment groups: (1) A control group consisting of PCL-TCP/Fibrin alone (n = 5); (2) PCL-TCP/Fibrin-HSft (30 μg) (n = 6) (HSft is the flow-through during HS3 isolation that has reduced affinity for BMP-2); (3) PCL-TCP/Fibrin-HS3 (5 μg) (n = 6); (4) PCL-TCP/Fibrin-HS3 (30 μg) (n = 6). Scaffold integration and bone formation was evaluated 12-weeks post implantation by μCT and histology. RESULTS Treatment with PCL-TCP/Fibrin alone (control) resulted in 23.7% ± 1.55% (BV/TV) of the calvarial defect being filled with new bone, a result similar to treatment with PCL-TCP/Fibrin scaffolds containing either HSft or HS3 (5 μg). At increased amounts of HS3 (30 μg), enhanced bone formation was evident (BV/TV = 38.6% ± 9.38%), a result 1.6-fold higher than control. Further assessment by 2D μCT and histology confirmed the presence of enhanced bone formation and scaffold integration with surrounding host bone only when scaffolds contained sufficient bone matrix-mimicking HS3. CONCLUSION Enhancing the biomimicry of devices using a heparan sulphate with increased affinity to BMP-2 can serve to improve the performance of PCL-TCP scaffolds and provides a suitable treatment for cranioplasty.
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Affiliation(s)
- Bach Quang Le
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Bina Rai
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Zophia Xue Hui Lim
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Tuan Chun Tan
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Tingxuan Lin
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Jaslyn Jie Lin Lee
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Sadasivam Murali
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Swee Hin Teoh
- Centre for Bone Tissue Engineering, School of Chemical and Biomedical Engineering, Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 62 Nanyang Drive, 637459, Singapore
| | - Victor Nurcombe
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
| | - Simon McKenzie Cool
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119288.
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Katagiri W, Watanabe J, Toyama N, Osugi M, Sakaguchi K, Hibi H. Clinical Study of Bone Regeneration by Conditioned Medium From Mesenchymal Stem Cells After Maxillary Sinus Floor Elevation. IMPLANT DENT 2018; 26:607-612. [PMID: 28727618 DOI: 10.1097/id.0000000000000618] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE This clinical study was undertaken to evaluate the safety of use of the secretome of bone marrow-derived mesenchymal stem cells (MSC-CM) for maxillary sinus floor elevation (SFE). MATERIALS AND METHODS MSC-CM was prepared from conditioned medium from human bone marrow-derived MSCs. Six partially edentulous patients were enrolled in the study. MSC-CM was mixed with porous beta-tricalcium phosphate (β-TCP) and implanted in 4 patients (experimental group), whereas only β-TCP was implanted in the other 2 patients (control group). Six months after SFE, bone biopsies and histological assessments were performed. RESULTS Bone formation was clinically confirmed in all cases. Although Hounsfield units in computed tomography images were not significantly different between the groups, histological analysis revealed a significant difference in newly formed bone area between the groups. In particular, bone volume in the center of the augmented area was significantly greater in the MSC-CM group. Newly formed bone consisted of lamellar bone in the MSC-CM group but woven bone in the β-TCP group. CONCLUSION The secretome of bone marrow-derived mesenchymal stem cells (MSC-CM) was used safely and has great osteogenic potential for regenerative medicine of bone.
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Affiliation(s)
- Wataru Katagiri
- *Associate Professor, Division of Reconstructive Surgery and Oral and Maxillofacial Region, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan. †Graduate Student, Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan. ‡Assistant Professor, Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan. §Professor, Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Dossani RH, Yates DM, Kalakoti P, Nanda A, Notarianni C, Woerner J, Ghali GE. Cranium Bifidum Occultum Associated with Hypertelorism Treated with Posterior Vault Reconstruction and Orbital Box Osteotomies: Case Report and Technical Note. World Neurosurg 2017; 107:40-46. [PMID: 28522383 DOI: 10.1016/j.wneu.2017.05.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 05/01/2017] [Accepted: 05/04/2017] [Indexed: 10/19/2022]
Abstract
Cranium bifidum occultum is a disorder of skull ossification presenting as an enlarged posterior fontanelle in the upper posterior angle of the parietal bone near the intersection of the sagittal and lambdoid sutures. The standard treatment for cranium bifidum occultum is observation. We present a case of a 5-year-old boy who presented with a 15 × 4.5 cm midline posterior cranial vault defect consistent with diagnosis of cranium bifidum occultum associated with orbital hypertelorism and a widened nose. The patient underwent posterior vault reconstruction for correction of cranium bifidum occultum defect followed by bifrontal craniotomy and orbital box osteotomies for correction of orbital hypertelorism and nasal deformity. To our knowledge, this is the first reported case describing surgical treatment for cranium bifidum occultum associated with orbital hypertelorism.
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Affiliation(s)
- Rimal H Dossani
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - David M Yates
- Department of Oral and Maxillofacial/Head and Neck Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Piyush Kalakoti
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Anil Nanda
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA.
| | - Christina Notarianni
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Jennifer Woerner
- Department of Oral and Maxillofacial/Head and Neck Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Ghali E Ghali
- Department of Oral and Maxillofacial/Head and Neck Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA; Chancellor and Dean, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
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Pogrel MA. Nerve Damage From Bone Allografts and Xenografts-A Case Series. J Oral Maxillofac Surg 2017; 75:1351.e1-1351.e7. [PMID: 28343980 DOI: 10.1016/j.joms.2017.02.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/19/2017] [Accepted: 02/17/2017] [Indexed: 10/20/2022]
Abstract
The concept of socket preservation by placing a particulate bone allograft or xenograft into a tooth socket or on the alveolar ridge after tooth removal remains a somewhat controversial topic. The concept is that it will preserve the ridge from resorption and such that subsequent implant insertion will be easier, with fewer complications. However, one particular issue is that these materials, although not directly neurotoxic, appear to be an irritant to the nerves if they come in contact with them. We present a case series demonstrating this complication.
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Affiliation(s)
- M Anthony Pogrel
- Professor, Department of Oral and Maxillofacial Surgery, University of California, San Francisco, School of Dentistry, San Francisco, CA.
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Fujioka-Kobayashi M, Schaller B, Saulacic N, Zhang Y, Miron RJ. Growth factor delivery of BMP9 using a novel natural bovine bone graft with integrated atelo-collagen type I: Biosynthesis, characterization, and cell behavior. J Biomed Mater Res A 2016; 105:408-418. [DOI: 10.1002/jbm.a.35921] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 09/28/2016] [Accepted: 09/29/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Masako Fujioka-Kobayashi
- Department of Periodontology, College of Dental Medicine; Nova Southeastern University; Fort Lauderdale Florida
- Department of Cranio-Maxillofacial Surgery; Bern University Hospital; Inselspital Switzerland
- Department of Oral Surgery; Institute of Biomedical Sciences, Tokushima University Graduate School; Tokushima Japan
| | - Benoit Schaller
- Department of Cranio-Maxillofacial Surgery; Bern University Hospital; Inselspital Switzerland
| | - Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery; Bern University Hospital; Inselspital Switzerland
| | - Yufeng Zhang
- Department of Oral Implantology; University of Wuhan; China
| | - Richard J. Miron
- Department of Periodontology, College of Dental Medicine; Nova Southeastern University; Fort Lauderdale Florida
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Application of Vacuum-Assisted Closure Therapy and Hyperbaric Oxygen Therapy for an Exposed Titanium Plate After Mandible Reconstruction. J Craniofac Surg 2016; 27:e601-e604. [DOI: 10.1097/scs.0000000000002917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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18
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Ban JY, Kang SW, Park GJ. Heparin increases the osteogenic effect of recombinant human bone morphogenetic protein-2 in the rabbit bone defect model. Anim Cells Syst (Seoul) 2015. [DOI: 10.1080/19768354.2015.1087429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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19
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Matthews JR, Margolis DS, Wu E, Truchan LM. Brachial Plexopathy Following Use of Recombinant Human BMP-2 for Treatment of Atrophic Delayed Union of the Clavicle. JBJS Case Connect 2015; 5:e81. [PMID: 29252591 DOI: 10.2106/jbjs.cc.n.00187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CASE Although recombinant human bone morphogenetic protein-2 (rhBMP-2) is approved for treatment of open tibial fractures and anterior lumbar interbody fusion, off-label use has been associated with complications such as local inflammation, osteolysis, and dysphagia. This case report describes a patient treated with rhBMP-2 for an atrophic delayed union of a clavicular fracture who subsequently developed a profound motor and sensory brachial plexopathy. CONCLUSION Use of rhBMP-2 near peripheral nerves may cause neuropathy. This should be considered prior to its use in surgical sites with peripheral nerves in proximity.
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Affiliation(s)
- John R Matthews
- College of Medicine - Tucson, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ 85724
| | - David S Margolis
- Department of Orthopaedic Surgery, University of Arizona, 1609 North Warren Avenue, Room 108, Tucson, AZ 85719.
| | - Eileen Wu
- Department of Orthopaedic Surgery, University of Arizona, 1609 North Warren Avenue, Room 108, Tucson, AZ 85719.
| | - Lisa M Truchan
- Department of Orthopaedic Surgery, University of Arizona, 1609 North Warren Avenue, Room 108, Tucson, AZ 85719.
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20
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Cruz ACC, Caon T, Menin Á, Granato R, Aragonês Á, Boabaid F, Simões CMO. Adipose-Derived Stem Cells Decrease Bone Morphogenetic Protein Type 2-Induced Inflammation In Vivo. J Oral Maxillofac Surg 2015; 74:505-14. [PMID: 26433041 DOI: 10.1016/j.joms.2015.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 08/10/2015] [Accepted: 09/07/2015] [Indexed: 12/26/2022]
Abstract
PURPOSE Recombinant human bone morphogenetic protein type 2 (rhBMP-2) has been used to promote bone regeneration. In contrast, some reports have suggested rhBMP-2 does not provide advantages over autogenous bone grafting owing to the undesirable postoperative symptoms of this growth factor. Because the undesirable symptoms of rhBMP-2 are usually promoted by inflammation, this study evaluated the in vivo effect of human adipose-derived stem cells (ASCs) incorporated into polylactic co-glycolic acid (PLGA) scaffolds in decreasing the inflammatory response induced by a low dose of rhBMP-2. MATERIALS AND METHODS PLGA scaffolds were characterized and loaded with rhBMP-2 1, 2.5, or 5 μg per scaffold (n = 6) and the in vitro released protein amounts were quantified at 7 hours and 1, 7, and 21 days after loading (n = 3). The muscle tissue of 6 beagles received the following treatments: PLGA, PLGA plus rhBMP-2 (2.5 μg), and PLGA plus rhBMP-2 plus ASCs (1 × 10(6) ASCs). The samples were evaluated 45 days after surgery. Statistical analyses were performed and the P value was set at .05. RESULTS PLGA plus rhBMP-2 plus ASCs yielded the smallest number of inflammatory foci (P < .001) and giant cells (P < .001) and the largest number of angiogenesis sites (P < .001). CONCLUSIONS Human ASCs administered in vivo into PLGA scaffolds with a low dose of rhBMP-2 decrease tissue inflammation and increase angiogenesis in muscular sites.
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Affiliation(s)
- Ariadne Cristiane Cabral Cruz
- Postdoctoral Research Fellow, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, Brazil.
| | - Thiago Caon
- Postdoctoral Research Fellow, Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Álvaro Menin
- Professor, Department of Environment and Health, University of Planalto Catarinense, Lages, Brazil
| | - Rodrigo Granato
- Professor, Department of Dentistry, Unigranrio University, Rio de Janeiro, Brazil
| | - Águedo Aragonês
- Research, Department of Research, Institute of Applied Biotechnologies, Florianópolis, Brazil
| | - Fernanda Boabaid
- Professor, Avantis Department of Dentistry, University, Balneário Camboriu, Brazil
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21
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Teven CM, Rossi MT, Shenaq DS, Ameer GA, Reid RR. Bone morphogenetic protein-9 effectively induces osteogenic differentiation of reversibly immortalized calvarial mesenchymal progenitor cells. Genes Dis 2015; 2:268-275. [PMID: 30258869 PMCID: PMC6147177 DOI: 10.1016/j.gendis.2015.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 06/09/2015] [Indexed: 12/23/2022] Open
Abstract
Critical-sized craniofacial defect repair represents a significant challenge to reconstructive surgeons. Many strategies have been employed in an effort to achieve both a functionally and cosmetically acceptable outcome. Bone morphogenetic proteins (BMPs) provide a robust osteoinductive cue to stimulate bony growth and remodeling. Previous studies have suggested that the BMP-9 isoform is particularly effective in promoting osteogenic differentiation of mesenchymal progenitor cells. The aim of this study is to characterize the osteogenic capacity of BMP-9 on calvarial mesenchymal progenitor cell differentiation. Reversibly immortalized murine calvarial progenitor cells (iCALs) were infected with adenoviral vectors encoding BMP-9 or GFP and assessed for early and late stages of osteogenic differentiation in vitro and for osteogenic differentiation via in vivo stem cell implantation studies. Significant elevations in alkaline phosphatase (ALP) activity, osteocalcin (OCN) mRNA transcription, osteopontin (OPN) protein expression, and matrix mineralization were detected in BMP-treated cells compared to control. Specifically, ALP activity was elevated on days 3, 7, 9, 11, and 13 post-infection and OCN mRNA expression was elevated on days 8, 10, and 14 in treated cells. Additionally, treatment groups demonstrated increased OPN protein expression on day 10 and matrix mineralization on day 14 post-infection relative to control groups. BMP-9 also facilitated the formation of new bone in vivo as detailed by gross, microcomputed tomography, and histological analyses. Therefore, we concluded that BMP-9 significantly stimulates osteogenic differentiation in iCALs, and should be considered an effective agent for calvarial tissue regeneration.
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Affiliation(s)
- Chad M Teven
- The Laboratory of Craniofacial Development and Biology, Section of Plastic and Reconstructive Surgery, University of Chicago Medicine, Chicago, IL, USA
| | - Michael T Rossi
- The Laboratory of Craniofacial Development and Biology, Section of Plastic and Reconstructive Surgery, University of Chicago Medicine, Chicago, IL, USA
| | - Deana S Shenaq
- The Laboratory of Craniofacial Development and Biology, Section of Plastic and Reconstructive Surgery, University of Chicago Medicine, Chicago, IL, USA
| | - Guillermo A Ameer
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA.,Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Russell R Reid
- The Laboratory of Craniofacial Development and Biology, Section of Plastic and Reconstructive Surgery, University of Chicago Medicine, Chicago, IL, USA
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22
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Li A, Hokugo A, Segovia LA, Yalom A, Rezzadeh K, Zhou S, Zhang Z, Parhami F, Stappenbeck F, Jarrahy R. Oxy133, a novel osteogenic agent, promotes bone regeneration in an intramembranous bone-healing model. J Tissue Eng Regen Med 2015; 11:1490-1499. [PMID: 26073881 DOI: 10.1002/term.2047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 04/10/2015] [Accepted: 04/29/2015] [Indexed: 12/14/2022]
Abstract
Current reconstructive techniques for complex craniofacial osseous defects are challenging and are associated with significant morbidity. Oxysterols are naturally occurring cholesterol oxidation products with osteogenic potential. In this study, we investigated the effects of a novel semi-synthetic oxysterol, Oxy133, on in vitro osteogenesis and an in vivo intramembranous bone-healing model. Rabbit bone marrow stromal cells (BMSCs) were treated with either Oxy133 or BMP-2. Alkaline phosphatase (ALP) activity, expression of osteogenic gene markers and in vitro mineralization were all examined. Next, collagen sponges carrying either Oxy133 or BMP-2 were used to reconstruct critical-sized cranial defects in mature rabbits and bone regeneration was assessed. To determine the mechanism of action of Oxy133 both in vitro and in vivo, rabbit BMSCs cultures and collagen sponge/Oxy133 implants were treated with the Hedgehog signalling pathway inhibitor, cyclopamine, and similar outcomes were measured. ALP activity in rabbit BMSCs treated with 1 μm Oxy133 was induced and was significantly higher than in control cells. These results were mitigated in cultures treated with cyclopamine. Expression of osteogenic gene markers and mineralization in BMSCs treated with 1 μm Oxy133 was significantly higher than in control groups. Complete bone regeneration was noted in vivo when cranial defects were treated with Oxy133; healing was incomplete, however, when cyclopamine was added. Collectively, these results demonstrate that Oxy133 has the ability to induce osteogenic differentiation in vitro in rabbit BMSCs and to promote robust bone regeneration in vivo in an animal model of intramembranous bone healing. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Andrew Li
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Akishige Hokugo
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Luis Andres Segovia
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Anisa Yalom
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Kameron Rezzadeh
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Situo Zhou
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Zheyu Zhang
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Farhad Parhami
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | | | - Reza Jarrahy
- Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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23
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Loperfido C, Mesquida J, Lozada JL. Severe mandibular atrophy treated with a subperiosteal implant and simultaneous graft with rhBMP-2 and mineralized allograft: a case report. J ORAL IMPLANTOL 2015; 40:707-13. [PMID: 23574428 DOI: 10.1563/aaid-joi-d-12-00132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A 71-year-old patient was successfully rehabilitated by means of a 3D model-derived, hydroxyapatite-coated titanium subperiosteal mandibular implant. The implant was specifically designed to allow bone augmentation. The deficient bone was simultaneously grafted with mineralized bone allograft and recombinant bone morphogenetic protein -2 (rhBMP-2). The 32-month postoperative cone beam computerized tomography follow-up showed vertical bone augmentation beneath the implant frame.
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24
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Wang X, Zakaria O, Madi M, Hao J, Chou J, Kasugai S. Vertical bone augmentation induced by ultrathin hydroxyapatite sputtered coated mini titanium implants in a rabbit calvaria model. J Biomed Mater Res B Appl Biomater 2014; 103:1700-8. [DOI: 10.1002/jbm.b.33347] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 11/11/2014] [Accepted: 12/02/2014] [Indexed: 01/02/2023]
Affiliation(s)
- Xin Wang
- Department of Oral Implantology and Regenerative Dental Medicine; Tokyo Medical and Dental University; Tokyo Japan
| | - Osama Zakaria
- Department of Oral Implantology and Regenerative Dental Medicine; Tokyo Medical and Dental University; Tokyo Japan
- Department of Oral and maxillofacial surgery; Pharos University in Alexandria; Alexandria Egypt
| | - Marwa Madi
- Department of Oral Medicine, Periodontology, Oral Diagnosis, and Radiology, Faculty of Dentistry; Alexandria University; Alexandria Egypt
| | - Jia Hao
- Department of Oral Implantology and Regenerative Dental Medicine; Tokyo Medical and Dental University; Tokyo Japan
| | - Joshua Chou
- Advanced Tissue Engineering and Drug Delivery Group; University of Technology Sydney; Sydney Australia
| | - Shohei Kasugai
- Department of Oral Implantology and Regenerative Dental Medicine; Tokyo Medical and Dental University; Tokyo Japan
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25
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Lam S, Kuether J, Fong A, Reid R. Cranioplasty for large-sized calvarial defects in the pediatric population: a review. Craniomaxillofac Trauma Reconstr 2014; 8:159-70. [PMID: 26000090 DOI: 10.1055/s-0034-1395880] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 07/20/2014] [Indexed: 01/10/2023] Open
Abstract
Large-sized calvarial defects in pediatric patients pose a reconstructive challenge because of children's unique physiology, developing anatomy, and dynamic growth. We review the current literature and outcomes with autologous and alloplastic cranioplasty in the pediatric population.
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Affiliation(s)
- Sandi Lam
- Department of Neurosurgery, Texas Children's Hospital, Houston, Texas
| | - Justin Kuether
- Division of Plastic Surgery, Department of Surgery, University of Chicago, Chicago, Illinois
| | - Abigail Fong
- Division of Plastic Surgery, University of Chicago, Chicago, Illinois
| | - Russell Reid
- Division of Plastic Surgery, Department of Surgery, University of Chicago, Chicago, Illinois
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26
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Kim MS, Lee JS, Shin HK, Kim JS, Yun JH, Cho KS. Prospective randomized, controlled trial of sinus grafting using Escherichia
-coli
-produced rhBMP-2 with a biphasic calcium phosphate carrier compared to deproteinized bovine bone. Clin Oral Implants Res 2014; 26:1361-8. [DOI: 10.1111/clr.12471] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Min-Soo Kim
- Department of Periodontology; Research Institute for Periodontal Regeneration; College of Dentistry; Yonsei University; Seoul Korea
| | - Jung-Seok Lee
- Department of Periodontology; Research Institute for Periodontal Regeneration; College of Dentistry; Yonsei University; Seoul Korea
| | - Hyun-Ki Shin
- Department of Periodontology; Research Institute for Periodontal Regeneration; College of Dentistry; Yonsei University; Seoul Korea
| | - Jae-Shin Kim
- Department of Periodontology; Research Institute for Periodontal Regeneration; College of Dentistry; Yonsei University; Seoul Korea
| | - Jeong-Ho Yun
- Division of Periodontology; Department of Dentistry; School of Medicine; Inha University; Incheon Korea
| | - Kyoo-Sung Cho
- Department of Periodontology; Research Institute for Periodontal Regeneration; College of Dentistry; Yonsei University; Seoul Korea
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27
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Hokugo A, Saito T, Li A, Sato K, Tabata Y, Jarrahy R. Stimulation of bone regeneration following the controlled release of water-insoluble oxysterol from biodegradable hydrogel. Biomaterials 2014; 35:5565-71. [PMID: 24731715 DOI: 10.1016/j.biomaterials.2014.03.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 03/11/2014] [Indexed: 12/30/2022]
Abstract
Recently bone graft substitutes using bone morphogenetic proteins (BMPs) have been heralded as potential alternatives to traditional bone reconstruction procedures. BMP-based products, however, are associated with significant and potentially life-threatening side effects when used in the head and neck region and furthermore, are exorbitantly priced. Oxysterols, products of cholesterol oxidation, represent a class of molecules that are favorable alternatives or adjuncts to BMP therapy due to their low side effect profile and cost. In order to establish the optimal clinical utility of oxysterol, an optimal scaffold must be developed, one that allows the release of oxysterol in a sustained and efficient manner. In this study, we prepare a clinically applicable bone graft substitute engineered for the optimal release of oxysterol. We first solubilized oxysterol in water by making use of polymeric micelles using l-lactic acid oligomer (LAo) grafted gelatin. Then, the water-solubilized oxysterol was incorporated into a biodegradable hydrogel that was enzymatically degraded intracorporeally. In this manner, oxysterol could be released from the hydrogel in a degradation-driven manner. The water-solubilized oxysterol incorporated biodegradable hydrogel was implanted into rat calvarial defects and induced successful bone regeneration. The innovative significance of this study lies in the development of a bone graft substitute that couples the osteogenic activity of oxysterol with a scaffold designed for optimized oxysterol release kinetics, all of which lead to better repair of bone defects.
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Affiliation(s)
- Akishige Hokugo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90025, USA
| | - Takashi Saito
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Andrew Li
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90025, USA
| | - Keisuke Sato
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Reza Jarrahy
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90025, USA.
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28
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Recent developments of functional scaffolds for craniomaxillofacial bone tissue engineering applications. ScientificWorldJournal 2013; 2013:863157. [PMID: 24163634 PMCID: PMC3791836 DOI: 10.1155/2013/863157] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 07/14/2013] [Indexed: 12/15/2022] Open
Abstract
Autogenous bone grafting remains a gold standard for the reconstruction critical-sized bone defects in the craniomaxillofacial region. Nevertheless, this graft procedure has several disadvantages such as restricted availability, donor-site morbidity, and limitations in regard to fully restoring the complicated three-dimensional structures in the craniomaxillofacial bone. The ultimate goal of craniomaxillofacial bone reconstruction is the regeneration of the physiological bone that simultaneously fulfills both morphological and functional restorations. Developments of tissue engineering in the last two decades have brought such a goal closer to reality. In bone tissue engineering, the scaffolds are fundamental, elemental and mesenchymal stem cells/osteoprogenitor cells and bioactive factors. A variety of scaffolds have been developed and used as spacemakers, biodegradable bone substitutes for transplanting to the new bone, matrices of drug delivery system, or supporting structures enhancing adhesion, proliferation, and matrix production of seeded cells according to the circumstances of the bone defects. However, scaffolds to be clinically completely satisfied have not been developed yet. Development of more functional scaffolds is required to be applied widely to cranio-maxillofacial bone defects. This paper reviews recent trends of scaffolds for crania-maxillofacial bone tissue engineering, including our studies.
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Hokugo A, Sorice S, Parhami F, Yalom A, Li A, Zuk P, Jarrahy R. A novel oxysterol promotes bone regeneration in rabbit cranial bone defects. J Tissue Eng Regen Med 2013; 10:591-9. [PMID: 23997014 DOI: 10.1002/term.1799] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 06/20/2013] [Accepted: 07/15/2013] [Indexed: 12/16/2022]
Abstract
Bone morphogenetic proteins (BMPs) have played a central role in the development of regenerative therapies for bone reconstruction. However, the high cost and side-effect profile of BMPs limits their broad application. Oxysterols, naturally occurring products of cholesterol oxidation, are promising osteogenic agents alternative to BMPs. The osteogenic capacity of these non-toxic and relatively inexpensive molecules has been documented in rodent models. We studied the impact of Oxy49, a novel oxysterol analogue, on the osteogenic differentiation of rabbit bone marrow stromal cells (BMSCs). Moreover, we evaluated the capacity for in vivo bone regeneration with Oxy49 in rabbit cranial bone defects. We found that rabbit BMSCs treated with Oxy49 demonstrated differentiation along osteogenic pathways, and that complete bone regeneration occurred when cranial defects were treated with Oxy49. Collectively, these results demonstrate that Oxy49 has the ability to induce osteogenic differentiation in rabbit BMSCs with an efficacy comparable to that of BMP-2 and to promote significant bone regeneration in cranial defects. Oxysterols may be a viable novel agent in bone tissue engineering. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Akishige Hokugo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Sarah Sorice
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Farhad Parhami
- Department of Medicine, David Geffen School of Medicine at UCLA, Center for the Health Sciences, Los Angeles, CA, USA
| | - Anisa Yalom
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Andrew Li
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Patricia Zuk
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Reza Jarrahy
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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30
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In Vitro Study of a Novel Oxysterol for Osteogenic Differentiation on Rabbit Bone Marrow Stromal Cells. Plast Reconstr Surg 2013; 132:70e-80e. [DOI: 10.1097/prs.0b013e318290f460] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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31
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Margolis DS, Wu EW, Truchan LM. Axonal loss in murine peripheral nerves following exposure to recombinant human bone morphogenetic protein-2 in an absorbable collagen sponge. J Bone Joint Surg Am 2013; 95:611-9. [PMID: 23553296 DOI: 10.2106/jbjs.k.00225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND With the proven efficacy of recombinant human bone morphogenetic protein-2 (rhBMP-2) to treat open tibial fractures and promote spine fusion, there has been an increase in its off-label use. Recent studies have shown that BMPs play a role in nerve development and regeneration. Little is known about changes that result when rhBMP-2 is used in the vicinity of peripheral nerves. The purpose of this study is to characterize changes in peripheral nerves following exposure to rhBMP-2-soaked collagen sponges. METHODS rhBMP-2 on an absorbable collagen sponge (ACS) was implanted directly on the sciatic nerves of Wistar rats. One and three weeks following surgery, the nerves were harvested and histological analysis was performed to evaluate inflammatory and structural changes. RESULTS rhBMP-2-soaked collagen sponges induced ectopic bone formation in muscle tissue in all animals after three weeks, but did not cause bone formation within the nerve. Axonal swelling and splitting of the myelin sheath were observed in both experimental and control nerves and may be a result of surgical manipulation. The overall incidence of axonal loss was 15.8% in the rhBMP-2/ACS-exposed nerves and was 0% in control nerves (p < 0.05). CONCLUSIONS rhBMP-2-soaked collagen sponges may adversely affect the axons of peripheral nerves by causing axonal dropout and loss of axons. Ectopic bone formation occurs within muscle tissues and not within the peripheral nerve. The axonal dropout may be a direct effect of rhBMP-2-soaked collagen sponges and not nerve compression as it was observed prior to ectopic bone formation.
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Affiliation(s)
- David S Margolis
- Department of Orthopaedic Surgery, University of Arizona, 1609 North Warren Avenue, Room 108, Tucson, AZ 85719, USA
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34
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Bone morphogenetic proteins in craniofacial surgery: current techniques, clinical experiences, and the future of personalized stem cell therapy. J Biomed Biotechnol 2012; 2012:601549. [PMID: 23226941 PMCID: PMC3511855 DOI: 10.1155/2012/601549] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Accepted: 10/16/2012] [Indexed: 12/29/2022] Open
Abstract
Critical-size osseous defects cannot heal without surgical intervention and can pose a significant challenge to craniofacial reconstruction. Autologous bone grafting is the gold standard for repair but is limited by a donor site morbidity and a potentially inadequate supply of autologous bone. Alternatives to autologous bone grafting include the use of alloplastic and allogenic materials, mesenchymal stem cells, and bone morphogenetic proteins. Bone morphogenetic proteins (BMPs) are essential mediators of bone formation involved in the regulation of differentiation of osteoprogenitor cells into osteoblasts. Here we focus on the use of BMPs in experimental models of craniofacial surgery and clinical applications of BMPs in the reconstruction of the cranial vault, palate, and mandible and suggest a model for the use of BMPs in personalized stem cell therapies.
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35
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Abstract
Complications related to surgery, including infection, wound dehiscence, and implant protrusion, are costly and may cause severe morbidity to patients. The choice of implants materials is critical for a successful outcome, particularly in craniofacial reconstructions. This review discusses the potential benefits and drawbacks of biologically active materials used for craniofacial bone repair as alternatives to inert implant prostheses.
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36
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Cicciù M, Herford AS, Stoffella E, Cervino G, Cicciù D. Protein-Signaled Guided Bone Regeneration Using Titanium Mesh and Rh-BMP2 in Oral Surgery: A Case Report Involving Left Mandibular Reconstruction after Tumor Resection. Open Dent J 2012; 6:51-5. [PMID: 22435080 PMCID: PMC3308318 DOI: 10.2174/1874210601206010051] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 01/30/2012] [Accepted: 02/06/2012] [Indexed: 12/04/2022] Open
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) is an osteoinductive protein approved for use in oral and maxillofacial defect reconstruction. Growth factors act as mediators of cellular growth on morphogenesis and mythogenesis phases. Utilized as recombinant proteins, these growth factors need the presence of local target cells capable of obtaining the required results. This cell population may be present at the wound site or added to scaffolding material before implantation at the surgical site. The aim of this study is to evaluate the clinical and radiographic results of a reported case with a large bone defect, treated with an absorbable collagen sponge, rhBMP-2 and a titanium plate and mesh. The Authors want to report a case which shows the resulting effectiveness of the rhBMP2 action regarding a large, mandibular defect reconstruction. This case also shows how the removal of a rare tumor such as a ghost cell tumor of the jaw may be treated without harvesting bone from another body site. A quick diagnosis of the lesions is important in order to perform the most suitable treatment. The Authors also underline the clinical and histological steps to insure the correct treatment is carried out to solve the case. Moreover, from results obtained from this case, it is possible to highlight several clinical benefits for the patient by adding rhBMP-2 to the common allograft to not only have alveolar reconstruction defects and sinus floor augmentation, but also to have alveolar cleft reconstruction and to treat segmental defects.
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Affiliation(s)
- M Cicciù
- Human Pathology Department, University of Messina University of Messina School of Dentistry
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Ohyama Y, Katafuchi M, Almehmadi A, Venkitapathi S, Jaha H, Ehrenman J, Morcos J, Aljamaan R, Mochida Y. Modulation of matrix mineralization by Vwc2-like protein and its novel splicing isoforms. Biochem Biophys Res Commun 2011; 418:12-6. [PMID: 22209847 DOI: 10.1016/j.bbrc.2011.12.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 12/15/2011] [Indexed: 12/11/2022]
Abstract
In search of new cysteine knot protein (CKP) family members, we found a novel gene called von Willebrand factor C domain-containing protein 2-like (Vwc2l, also known as Brorin-like) and its transcript variants (Vwc2l-1, Vwc2l-2 and Vwc2l-3). Based on the deduced amino acid sequence, Vwc2l-1 has a signal peptide and 2 cysteine-rich (CR) domains, while Vwc2l-2 lacks a part of 2nd CR domain and Vwc2l-3 both CR domains. Although it has been reported that the expression of Brorin-like was predominantly observed in brain, we found that Vwc2l transcript variants were detected in more ubiquitous tissues. In osteoblasts, the induction of Vwc2l expression was observed at matrix mineralization stage. When Vwc2l was stably transfected into osteoblasts, the matrix mineralization was markedly accelerated in Vwc2l-expressing clones compared to that in the control, indicating the modulatory effect of Vwc2l protein on osteoblastic cell function. The mechanistic insight of Vwc2l-modulation was further investigated and we found that the expression of Osterix, one of the key osteogenic markers, was significantly increased by addition of all Vwc2l isoform proteins. Taken together, Vwc2l is a novel secreted protein that promotes matrix mineralization by modulating Osterix expression likely through TGF-β superfamily growth factor signaling pathway. Our data may provide mechanistic insights into the biological functions of this novel CKP member in bone and further suggest a novel approach to enhance osteoblast function, which enables to accerelate bone formation, regeneration and healing.
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Affiliation(s)
- Yoshio Ohyama
- Department of Periodontology and Oral Biology, Boston University, Henry M. Goldman School of Dental Medicine, 700 Albany Street, Boston, MA 02118, USA
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