Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (2): 283-288.doi: 10.3969/j.issn.2095-4344.2015.02.023

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Brain-derived neurotrophic factor in the development and metabolism of bone and tooth: promoting or inhibiting proliferation and differentiation?

Wu Xiao-ying, Yang Bin   

  1. Plastic Surgery Hospital (Institute), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100144, China
  • Received:2014-12-18 Online:2015-01-08 Published:2015-01-08
  • Contact: Yang Bin, M.D., Professor, Plastic Surgery Hospital (Institute), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100144, China
  • About author:Wu Xiao-ying, Studying for master’s degree, Plastic Surgery Hospital (Institute), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100144, China

Abstract:

BACKGROUND: Brain-derived neurotrophic factor has been detected in bone and tooth, and its role in development and metabolism of bone and tooth tissue as well as its clinical application has become a hot spot.
OBJECTIVE: To summarize and analyze the effect and mechanism of brain-derived neurotrophic factor in development and metabolism of bone and tooth tissues.
METHODS: Papers addressing the effect of brain-derived neurotrophic factor in bone and tooth tissue were retrieved by computer in Wanfang and PubMed databases with the key words of “brain-derived neurotrophic factor, TrkB, p75NTR, signaling, bone, tooth, osteoblasts, osteoclasts” in Chinese and English, respectively. A total of 53 papers were included for review.
RESULTS AND CONCLUSION: Brain-derived neurotrophic factor can be detected in various tissues in vivo, and can regulate cell survival and apoptosis through binding its two receptors. Brain-derived neurotrophic factor in bone and tooth tissue can bind to target cells, induce or inhibit cell proliferation and differentiation, indicating that brain-derived neurotrophic factor is closely linked to bone and tooth tissue, and may play a role in growth and reconstruction of bone and tooth. Its mechanism of action is mainly through binding to TrkB receptor, to activate downstream pathways and affect differentiation and proliferation of mesenchymal stem cells, osteoblasts, chondrocytes, and periodontal ligament cells. Interaction between p75NTR receptor and TrkB receptor may be one of the factors affecting cell differentiation or proliferation.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: Brain-Derived Neurotrophic Factor, Protein-Tyrosine Kinases, Receptor, Nerve Growth Factors, Osteoblasts, Osteoclasts

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