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Kawai M, Kataoka YH, Sonobe J, Yamamoto H, Inubushi M, Ishimoto T, Nakano T, Maruyama H, Miyazaki JI, Yamamoto T, Bessho K, Ohura K. Non-surgical model for alveolar bone regeneration by bone morphogenetic protein-2/7 gene therapy. J Periodontol 2019; 89:85-92. [PMID: 28820323 DOI: 10.1902/jop.2017.170328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/24/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Alveolar bone is a critical tissue for tooth retention; however, once alveolar bone is lost, it may not spontaneously regenerate. Currently, bone grafts or artificial bone is commonly used for alveolar bone regeneration therapy. However, these therapies require surgical procedures, which present risks, particularly in elderly patients. Therefore, development of alveolar bone regeneration techniques that do not require surgical procedures is critical. It is well known that stem cells present in the periosteal and periodontal ligament may be induced to differentiate into osteogenic cells. This study hypothesizes that transfer of the bone morphogenetic protein-2/7 (BMP-2/7) gene into periodontal tissues via in vivo electroporation induces exogenous BMP production and causes stem cells in periodontal tissues to differentiate into osteogenic cells, enabling generation of new alveolar bone. METHOD The BMP-2/7 gene expression vector was introduced via electroporation into the target site in periodontal tissues of the first molar of rat maxillae. RESULTS Exogenous BMP-2 and -7 were detected in the target areas, and growth of new alveolar bone tissue was observed 5 days after gene transfer. On day 7, new alveolar bone tissues were found to connect to the original bone tissues. Moreover, mineral apposition rates of the alveolar bone after BMP-2/7 gene transfer were significantly higher than those in the control group after LacZ gene transfer. CONCLUSION The present findings indicate that a combination of the BMP-2/7 non-viral vector and in vivo electroporation represents a promising non-surgical option for alveolar bone regeneration therapy.
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Affiliation(s)
- Mariko Kawai
- Department of Pharmacology, Osaka Dental University, Osaka, Japan.,Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yo-Hei Kataoka
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Junya Sonobe
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiromitsu Yamamoto
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Takuya Ishimoto
- Biomaterials and Structural Materials Design, Division of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Takayoshi Nakano
- Biomaterials and Structural Materials Design, Division of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Hiroki Maruyama
- Department of Clinical Nephroscience, Niigata University Graduate School of Medicine and Dental Sciences, Niigata, Japan
| | - Jun-Ichi Miyazaki
- Division of Stem Cell Regulation Research, Osaka University Medical School, Osaka, Japan
| | - Toshio Yamamoto
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kazuhisa Bessho
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kiyoshi Ohura
- Department of Pharmacology, Osaka Dental University, Osaka, Japan
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Kawai M, Ohmori YK, Nishino M, Yoshida M, Tabata K, Hirota DS, Ryu-Mon A, Yamamoto H, Sonobe J, Kataoka YH, Shiotsu N, Ikegame M, Maruyama H, Yamamoto T, Bessho K, Ohura K. Determination of cell fate in skeletal muscle following BMP gene transfer by in vivo electroporation. Eur J Histochem 2017; 61:2772. [PMID: 28735515 PMCID: PMC5641669 DOI: 10.4081/ejh.2017.2772] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 11/23/2022] Open
Abstract
We previously developed a novel method for gene transfer, which combined a non-viral gene expression vector with transcutaneous in vivo electroporation. We applied this method to transfer the bone morphogenetic protein (BMP) gene and induce ectopic bone formation in rat skeletal muscles. At present, it remains unclear which types of cells can differentiate into osteogenic cells after BMP gene transfer by in vivo electroporation. Two types of stem cells in skeletal muscle can differentiate into osteogenic cells: muscle-derived stem cells, and bone marrow-derived stem cells in the blood. In the present study, we transferred the BMP gene into rat skeletal muscles. We then stained tissues for several muscle-derived stem cell markers (e.g., Pax7, M-cadherin), muscle regeneration-related markers (e.g., Myod1, myogenin), and an inflammatory cell marker (CD68) to follow cell differentiation over time. Our results indicate that, in the absence of BMP, the cell population undergoes muscle regeneration, whereas in its presence, it can differentiate into osteogenic cells. Commitment towards either muscle regeneration or induction of ectopic bone formation appears to occur five to seven days after BMP gene transfer.
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Kawai M, Liu N, Hattori T, Kataoka YH, Takigawa M, Kubota S, Yamamoto T, Ohura K. Sorcin Expression in the Epiphyseal Growth Plates of Mice. J HARD TISSUE BIOL 2016. [DOI: 10.2485/jhtb.25.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mariko Kawai
- Department of Pharmacology, Osaka Dental University
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Ning Liu
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
- Central Laboratory, The Second Hospital of Jilin University
| | - Takako Hattori
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yo-Hei Kataoka
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University
| | - Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Toshio Yamamoto
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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