中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (16): 2509-2514.doi: 10.3969/j.issn.2095-4344.2017.16.009

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

不同强度冲击波对牙槽骨细胞成骨能力的影响

郭  元1,张  弛2,刘  松2,王  钊2,潘兴飞3,王  簕2   

  1. 广州医科大学附属第三医院,1口腔科,2骨科,3感染科,广东省广州市  510150
  • 修回日期:2017-03-10 出版日期:2017-06-08 发布日期:2017-07-06
  • 通讯作者: 王簕,博士,副主任医师,广州医科大学附属第三医院骨科,广东省广州市 510150
  • 作者简介:郭元,女,1980年生,上海市人,汉族,2011年广州医科大学毕业,硕士,主治医师,主要从事骨修复方面的研究。
  • 基金资助:

    国家自然科学基金(31570980);广东省公益研究与能力建设项目(2014A020212347);广州市属高校科研项目(1201430092)

Influence of different intensities of extracorporeal shock waves on the osteogenesis ability of alveolar osteoblasts

Guo Yuan1, Zhang Chi2, Liu Song2, Wang Zhao2, Pan Xing-fei3, Wang Le2   

  1. 1Department of Stomatology, 2Department of Orthopedics, 3Department of Infectious Diseases, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • Revised:2017-03-10 Online:2017-06-08 Published:2017-07-06
  • Contact: Wang Le, M.D., Associate chief physician, Department of Orthopedics, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • About author:Guo Yuan, Master, Attending physician, Department of Stomatology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31570980; the Public Research and Construction Project of Guangdong Province, No. 2014A020212347; the Scientific Research Project of Universities in Guangzhou, No. 1201430092

摘要:

文章快速阅读:

文题释义:
细胞增殖的检测:
细胞增殖是生物体生长、发育、繁殖和遗传的基础,细胞是以分裂的方式进行增殖。CCK-8试剂中含有WST-8,它在1-甲氧基-5-甲基吩嗪硫酸甲酯盐的作用下被细胞线粒体中的脱氢酶还原为具有高度水溶性的黄色甲臜产物。生成的甲臜物的数量与活细胞的数量成正比。因此,可间接反映活细胞数量。
成骨分化:成骨样细胞可在特定条件下,比如成骨培养基,力学刺激,冲击波作用等条件下向成熟的成骨细胞转化,该过程可表现为细胞分泌合成成骨细胞成熟过程中所合成的部分标志物,如碱性磷酸酶,骨形态发生蛋白等。

 

摘要
背景:
许多口腔炎性疾病可引起牙槽骨丢失,牙齿松动,影响咬合关系。体外冲击波技术有望改善牙槽骨修复,提高牙槽骨细胞成骨活性,但是目前体外冲击波技术对牙槽骨细胞的作用效果及机制仍不明确,有必要进一步阐明。
目的:比较不同强度冲击波对大鼠牙槽骨细胞增殖能力和成骨分化的影响。
方法:通过原代培养获取大鼠牙槽骨细胞,进行体外分离培养,通过碱性磷酸酶染色进行鉴定。分别用强度为0.18、0.36、0.50 mJ/mm2的冲击波作用于大鼠牙槽骨细胞,作用频次均为100次。
结果与结论:当选用强度为0.18和0.36 mJ/mm2冲击波作用后,牙槽骨细胞碱性磷酸酶和骨形态发生蛋白2的分泌量明显增加,并且冲击波强度越高,分泌量越大(P < 0.05)。当冲击波作用强度为0.50 mJ/mm2时,大鼠牙槽骨细胞增殖能力明显减退,碱性磷酸酶和骨形态发生蛋白2的分泌量显著下降(P < 0.05)。提示当冲击波作用强度低于0.36 mJ/mm2时,随着作用强度的增加,可提高牙槽骨细胞的成骨能力,这为临床应用冲击波促进牙槽骨修复提供了理论基础。

 

 

ORCID: 0000-0002-6465-8579(王簕)

关键词: 组织构建, 骨细胞, 冲击波, 牙槽骨细胞, 成骨, 碱性磷酸酶, 骨形态发生蛋白2, 骨修复, 细胞增殖, 细胞分化, 国家自然科学基金

Abstract:

BACKGROUND: Oral inflammatory diseases usually cause alveolar bone loss and odontoseisis, and further impact dental occlusion. Extracorporeal shock wave therapy (ESWT) is a promising method for the repair of alveolar bone and improving osteogenic activity of alveolar osteoblasts, but its therapeutic efficacy and related mechanisms remain unclear.

OBJECTIVE: To compare the effect of different intensities of ESWT on the proliferation and osteogenesis abilities of rat alveolar osteoblasts.
METHODS: The rat alveolar osteoblasts were obtained and cultured in vitro, and further identified by alkaline phosphatase staining. 0.18, 0.36, and 0.50 mJ/mm2 ESWT was used to stimulate the rat alveolar osteoblasts, 100 pulses, respectively.

RESULTS AND CONCLUSION: The levels of alkaline phosphatase and bone morphogenetic protein 2 were significantly increased in the 0.36 and 0.18 mJ/mm2 ESWT groups, especially in the 0.36 mJ/mm2 ESWT group (P < 0.05). 0.50 mJ/mm2 ESWT significantly decreased the proliferation ability of rat alveolar osteoblasts and downregulated the levels of alkaline phosphatase and bone morphogenetic protein 2 (P < 0.05). To conclude, ESWT (< 0.36 mJ/mm2) can improve the osteogenesis ability of rat alveolar osteoblasts with the intensity increasing, which provides a theoretical basis for the clinical use of ESWT in the alveolar bone repair.

 

 

Key words: High-Energy Shock Waves, Cell proliferation, Tissue Engineering

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