中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (9): 1592-1597.doi: 10.3969/j.issn.2095-4344.2013.09.011

• 骨科植入物 orthopedic implant • 上一篇    下一篇

阳极氧化种植体植入早期骨组织细胞趋化因子受体4的表达

贾婷婷1,张云涛2,刘顺振3,孙 鑫3,侯玉东3   

  1. 1山东大学齐鲁医院南山养生谷分院口腔科,山东省龙口市 265700
    2滨州医学院附属医院口腔矫形科,山东省滨州市 256600
    3滨州医学院,山东省烟台市 256603
  • 收稿日期:2012-05-25 修回日期:2012-07-10 出版日期:2013-02-26 发布日期:2013-02-26
  • 通讯作者: 侯玉东,教授,硕士生导师,滨州医学院,山东省烟台市 256603 bycgk@126.com
  • 作者简介:贾婷婷★,女,1985年生,山东省龙口市人,汉族,2012年滨州医学院毕业,硕士,医师,主要从事口腔修复研究。 jiatting6@sina.com

Chemokin CXC motif receptor 4 expression in bone tissue surrounding anode-oxidized implants during early implantation

Jia Ting-ting1, Zhang Yun-tao2, Liu Shun-zhen3, Sun Xin3, Hou Yu-dong3   

  1. 1 Department of Stomatology, Nanshan Branch of Qilu Hospital of Shandong University, Longkou 265700, Shandong Province, China 2 Department of Oral Orthopedics, Affiliated Hospital of Binzhou Medical College, Binzhou 256600, Shandong Province, China 3 Binzhou Medical College, Yantai 256603, Shandong Province, China
  • Received:2012-05-25 Revised:2012-07-10 Online:2013-02-26 Published:2013-02-26
  • Contact: Hou Yu-dong, Professor, Master’s supervisor, Binzhou Medical College, Yantai 256603, Shandong Province, China bycgk@126.com
  • About author:Jia Ting-ting★, Master, Physician, Department of Stomatology, Nanshan Branch of Qilu Hospital of Shandong University, Longkou 265700, Shandong Province, China jiatting6@sina.com

摘要:

背景:与传统种植体相比,阳极氧化种植体植入早期即可达到种植稳定,其相关的分子生物学机制并不明确。
目的:分析细胞趋化因子受体4在阳极氧化种植体植入早期表达的意义。
方法:选取4月龄Wistar大鼠40只,随机分为种植体植入6,12,24 h组及空白对照组。将阳极氧化和喷砂两种表面特性的种植体分别植入实验组所有大鼠左右侧胫骨。植入6,12,24 h后处死各实验组大鼠,旋出种植体,截取种植体周围直径约2 cm骨组织,对照组截取胫骨近骺端直径约2 cm骨组织。将各实验组一半骨组织制备蛋白样品,用Western blot免疫印迹分析细胞趋化因子受体4蛋白,以β-actin作为内参。另一半骨组织进行中性EDTA脱钙、切片,进行细胞趋化因子受体4蛋白免疫组织化学检测。将24 h组取出的种植体行扫描电镜观察。
结果与结论:Western blot结果显示,种植体植入24 h内,实验组种植体周围骨组织细胞趋化因子受体4蛋白表达量均高于空白对照组。同一时间点,阳极氧化种植体周围骨组织细胞趋化因子受体4表达量均高于表面喷砂种植体周围骨组织。免疫组织化学结果支持上述结果。扫描电镜可见,阳极氧化种植体较喷砂种植体表面黏附较多的间叶样细胞。提示阳极氧化种植体诱导机体骨组织细胞趋化因子受体4高表达,可能促使种植体达到早期稳定。

关键词: 骨关节植入物, 骨科植入物, 免疫印迹法, 扫描电镜, 细胞趋化因子受体4, 种植体, 免疫组织化学, 骨关节植入物图片文章

Abstract:

BACKGROUND: The anode-oxidized implants have shown high implant stability at early period compared to traditional implants. However, the cellular and molecular mechanisms are unknown.
OBJECTIVE: To investigate the significance of chemokin CXC motif receptor 4 in bone tissue around anode-oxidized implant during early implantation.
METHODS: Forty Wistar rats of 4 months old were selected and randomly divided into 6, 12 and 24 hours implantation groups and blank control group. Rats in experimental groups received anode-oxidized implant in one tibia and sand blast implant in the other one. Rats in the experimental groups were killed at 6, 12 and 24 hours accordingly after implantation, the implants were unscrewed, and the bone tissue around implants was prepared, 2 cm in diameter. For blank control group, proximal epiphysis bone tissue about 2 cm in diameter were prepared. Half bone tissues in the experimental groups were made into protein samples. The expression of chemokin CXC motif receptor 4 was detected by Western blot with β-actin as internal reference. The other half bone tissues were treated with neutral ethylene diamine tetraacetie acid, and then slides were made. The expression of chemokin CXC motif receptor 4 was detected by immunohistochemistry. The implants in the 24 hours implantation group were examined by scanning electron microscope.
RESULTS AND CONCLUSION: The results of Western blot demonstrated that the expression of chemokin CXC motif receptor 4 in rat bone tissue of the experimental groups were significantly higher than that of the blank control group within 24 hours after implantation. At the same time point, the expression of chemokin CXC motif receptor 4 in rat bone tissue around the anode-oxidized implant was higher than that around the sand blast implant. The results of immunohistochemistry were consistent with those of Western blot. The observation results of scanning electron microscope showed that anode-oxidized surface showed more attached mesenchymal-like cells scattered all over the surfaces than the sand blast implant. The anode-oxidized implants can induce higher expression of chemokin CXC motif receptor 4 around bone tissue, and may promote the stability of implant at early time points.

Key words: bone and joint implants, orthopedic implants, Western blot, scanning electron microscopy, chemokin CXC motif receptor 4, implants, immunohistochemistry, photographs-containing paper of bone and joint implants

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