中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (8): 1172-1177.doi: 10.3969/j.issn.2095-4344.2017.08.005

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

富自体浓缩生长因子膜在兔下颌骨牵张成骨中的作用

田璐鸣1,辛增玺1,马云胜2   

  1. 1辽宁医学院附属第二医院口腔外科,辽宁省锦州市  121001;2锦州医科大学发育生物学教研室,辽宁省锦州市  121000
  • 收稿日期:2016-10-29 出版日期:2017-03-18 发布日期:2017-04-14
  • 通讯作者: 马云胜,博士,副教授,硕士生导师,锦州医科大学发育生物学教研室,辽宁省锦州市 121001.
  • 作者简介:田璐鸣,男,1976年生,辽宁省锦州市人,汉族,1999年锦州医科大学毕业,副主任医师,主要从事口腔外伤及损伤修复的研究。
  • 基金资助:

    辽宁省教育厅基金项目(L2012308)

Effect of concentrated growth factor fibrin membrane during distraction osteogenesis of the rabbit mandible

Tian Lu-ming1, Xin Zeng-xi1, Ma Yun-sheng2   

  1. 1Department of Oral Surgery, the Second Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, Liaoning Province, China; 2Department of Developmental Biology, Jinzhou Medical University, Jinzhou 121000, Liaoning Province, China
  • Received:2016-10-29 Online:2017-03-18 Published:2017-04-14
  • Contact: Ma Yun-sheng, M.D., Associate professor, Master’s supervisor, Department of Developmental Biology, Jinzhou Medical University, Jinzhou 121000, Liaoning Province, China
  • About author:Tian Lu-ming, Associate chief physician, Department of Oral Surgery, the Second Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
  • Supported by:

    the Project of Department of Education of Liaoning Province, No. L2012308

摘要:

文章快速阅读:

文题释义:
牵张成骨:是一种内源性骨组织工程技术,是通过将骨骼切开,在切骨线两侧安放特制的牵张器,经过一定的延迟期后(5-7 d),缓慢牵张切骨间隙(1-1.5 mm/d),使切骨间隙不断增宽,并激发机体组织再生的潜力,在牵张间隙内不断形成新生骨组织,同时使骨骼周围的肌肉、神经、血管、皮肤等同期延长,从而达到延长骨骼的目的。
富自体浓缩生长因子纤维蛋白凝胶(液体):是一种新型血液提取物,是继富血小板血浆和富血小板纤维蛋白之后的第3代血浆提取物;浓缩生长因子在细胞迁移,细胞增殖和血管生成组织再生方面有至关重要的作用,如富血小板血浆,富血小板纤维蛋白,富自体浓缩生长因子已被用于重建骨缺损。
摘要
背景
:富自体浓缩生长因子膜可参与调节代谢,已被用于骨缺损的重建。研究发现在牵张成骨的新骨缝附近的成骨细胞、间质细胞及骨细胞的胞质中均有骨保护素和核因子ΚB受体活化因子配体表达。
目的:分析骨矫形作用的机制及富自体浓缩生长因子膜对兔下颌骨牵张成骨的促进意义。
方法:随机选取24只大白兔建立兔下颌骨牵张成骨模型;对照组行左单侧下颌骨牵张成骨;实验组将富自体浓缩生长因子膜固定于牵张成骨器内侧面并且完全包绕牵张间隙,再行右单侧下颌骨牵张成骨;共延长  6 mm。在固定期第1,7,14及28天分别处死动物,获取双侧下颌骨行组织学苏木精-伊红染色、免疫印迹法Western blot法和免疫组织化学检测核因子ΚB受体活化因子配体及骨保护素在新生骨中的表达情况;观察和对比两组间牵张间隙内成骨效果。
结果与结论:牵引后第1,7,14天骨保护素表达的阳性细胞率和阳性面积百分比实验组均显著高于对照组(P < 0.05或P < 0.01);牵引后第1,14天核因子ΚB受体活化因子配体表达的阳性细胞率和阳性面积百分比实验组均显著高于对照组(P < 0.05或P < 0.01);Western blot法检测核因子ΚB受体活化因子配体/骨保护素比值对照组较实验组要高(P < 0.01)。结果说明,富自体浓缩生长因子膜可促进兔下颌骨牵张成骨间隙内的新骨形成和矿化,说明富自体浓缩生长因子膜是促进下颌骨牵张成骨的有效手段。

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
ORCID: 0000-0003-1583-7893(田璐鸣)

关键词: 组织构建, 骨组织工程, 富自体浓缩生长因子, RANKL, 牵张成骨, 骨保护素, 免疫印迹法

Abstract:

BACKGROUND: Concentrated growth factor (CGF) fibrin membrane is involved in metabolism regulation, which has been applied in bone remodeling. Previous Studies have found that the cytoplasts of osteoblasts, interstitial cells and osteocytes in distraction osteogenesis are positive for osteoprotegerin and receptor activator nuclear factor kappa B ligand (RANKL).
OBJECTIVE: To explore the mechanism of bone orthopedic effect and the promotion effect of CGF fibrin membrane on the distraction osteogenesis of the rabbit mandible.
METHODS: Twenty-four white rabbits were randomly selected. Distraction osteogenesis was performed unilaterally in the rabbit left mandible (control group); CGF fibrin membrane was fixed on the inner surface of distractor, and the distraction gap was then completely wrapped prior to distraction osteogenesis in the right mandible (experimental group). At 1, 7, 14 and 28 days of consolidation period, the rabbits were sacrificed and the bilateral mandibles were taken for hematoxylin-eosin staining, western blot assay and immunohistochemical staining to detect the expression of RANKL and osteoprotegerin in the newborn bones; the osteogenesis in the distraction gap was observed and compared between two groups.
RESULTS AND CONCLUSION: The osteoprotegerin positive cells and positive area percentage in the experimental group were significantly higher than those in the control group at 1, 7 and 14 days after distraction osteogenesis (P < 0.01). The RANKL positive rate and positive area percentage in the experimental group were significantly higher than those in the control group at 1 and 14 days after distraction osteogenesis (P < 0.05 or P < 0.01). Western blot assay showed a higher ratio of RANKL/osteoprotegerin in the control group than the experimental group (P < 0.01). Our findings indicate that CGF fibrin membrane can promote osteogenesis and mineralization in the distraction gap of the rabbit mandible, which is beneficial for distraction osteogenesis in the mandible.

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

Key words: Palete-Rich-Plasma, RANK Ligand, Osteoprotegerin, Tissue Engineeirng

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