Effect of bone marrow-derived stem cells and bone morphogenetic protein-2 on treatment of osteoradionecrosis in a rat model
- Authors
- Jin, Im Geon; Kim, Jin Ho; Wu, Hong-Gyun; Kim, Sook Kyoung; Park, Yongdoo; Hwang, Soon Jung
- Issue Date
- 10월-2015
- Publisher
- CHURCHILL LIVINGSTONE
- Keywords
- Bone marrow-derived stem cell; Bone morphogenetic protein-2; Osteoradionecrosis
- Citation
- JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY, v.43, no.8, pp.1478 - 1486
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY
- Volume
- 43
- Number
- 8
- Start Page
- 1478
- End Page
- 1486
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92288
- DOI
- 10.1016/j.jcms.2015.06.035
- ISSN
- 1010-5182
- Abstract
- Purpose: We investigated the effect of rat mesenchymal stem cells (rMSCs) and bone morphogenetic protein-2 (BMP-2) on the osseous healing of osteoradionecrosis in the rat mandible, depending on application time. Material and methods: One week after irradiation (30 Gy) on the right mandible, all molar teeth were extracted. In Group 1 (n = 25), rMSCs and/or BMP-2 carried with hydrogel were applied immediately after surgery. In Group 2 (n = 25), application was done 4 weeks after surgery, after the occurrence of osteoradionecrosis. No hydrogel (n = 5), hydrogel alone (n = 5), hydrogel with 2 x 10(4) rMSCs (n = 5), hydrogel with 10 mu g of BMP-2 (n = 5), or hydrogel with 10 mu g of BMP-2 and 2 x 10(4) rMSCs (n = 5) was applied. Micro-CT data of bone healing were collected at 4 weeks post-application. Results: In Group 1, BMP-2 was effective in increasing both bone volume (BV) and bone mineral density (BMD), whereas rMSCs were not. In Group 2, the combined application of rMSCs and BMP-2 significantly increased BMD and BV compared to values in the groups without hydrogel and with hydrogel alone. Conclusion: Osseous healing after post-irradiation trauma in rats was enhanced immediately after dentoalveolar trauma by application of BMP-2, whereas the combined application of rMSCs and BMP-2 was most effective after osteoradionecrosis occurred. (C) 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.
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