中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (47): 8235-8241.doi: 10.3969/j.issn.2095-4344.2013.47.015

• 生物材料综述 biomaterial review • 上一篇    下一篇

骨诱导性双相磷酸钙陶瓷的研究与应用

薛双丽,包崇云   

  1. 口腔疾病研究国家重点实验室,华西口腔医院(四川大学),四川省成都市  610041
  • 修回日期:2013-05-28 出版日期:2013-11-19 发布日期:2013-11-19
  • 通讯作者: 包崇云,博士,教授,口腔疾病研究国家重点实验室,华西口腔医院(四川大学),四川省成都市 610041
  • 作者简介:薛双丽★,女,1988 年生,河南省三门峡市人,汉族,四川大学在读硕士,主要从事骨修复替代材料研究。 xueshuangli@163.com
  • 基金资助:

    国家自然科学基金(30970728,81171005)*,教育部博士点基金(博导类)(20100181110058)*

Osteoinductive properties of biphasic calcium phosphates

Xue Shuang-li, Bao Chong-yun   

  1. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu  610041, Sichuan Province, China
  • Revised:2013-05-28 Online:2013-11-19 Published:2013-11-19
  • Contact: Bao Chong-yun, M.D., Professor, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
  • About author:Xue Shuang-li★, Studying for master’s degree, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China xueshuangli@163.com
  • Supported by:

    the National Natural Science Foundation of China, No. 30970728*, 81171005*; the Doctoral Scientific Fund Project of the Ministry of Education of China, No. 20100181110058*

摘要:

背景:双相磷酸钙陶瓷是由羟基磷灰石和β-磷酸三钙两相成分构成的陶瓷,其化学组成与骨组织的无机成分相似,目前体内外研究表明双相磷酸钙陶瓷除具有良好的生物相容性、生物活性、骨传导性以外,还具有骨诱导性,因此有望成为理想的骨替代材料。然而,双相磷酸钙陶瓷骨诱导的影响因素及相关机制尚不明确。
目的:综述影响双相磷酸钙陶瓷骨诱导性的因素及机制。
方法:应用计算机检索Ovid Medline和PubMed数据库中1985年1月至2013年1月关于双相磷酸钙陶瓷骨诱导性的文章,在标题和摘要中以“bone graft substitutes, biphasic calcium phosphates, osteoinduction”为检索词进行检索。选择文章内容与双相磷酸钙陶瓷的骨诱导性有关者,同一领域文献则选择近期发表或发表在权威杂志的文章,最终选择34篇文献进行综述。
结果与结论:综合相关文献发现双相磷酸钙陶瓷的化学组成通过影响钙磷的降解和再沉积速率,进而影响其骨诱导性的发挥;同时双相磷酸钙陶瓷的物理结构通过影响骨形成相关蛋白的吸附、血管生成、组织长入、局部微环境并进一步诱发干细胞的骨向分化来影响双相磷酸钙陶瓷的骨诱导性;另外双相磷酸钙陶瓷植入动物的种属,植入部位及植入体大小也可对其骨诱导性产生影响。因此通过对双相磷酸钙陶瓷骨诱导性影响因素及相关机制的研究可为制备具有稳定骨诱导性的骨替代材料提供依据。

关键词: 生物材料, 生物材料综述, 骨替代材料, 双相磷酸钙陶瓷, 理化性质, 骨诱导, 国家自然科学基金

Abstract:

BACKGROUND: Biphasic calcium phosphates, consisting of hydroxyapatite and beta-tricalcium phosphate, have been extensively applied as bone graft substitutes due to their similarity with the mineral portion of nature bone. They have been proved to have excellent biocompatibility, bioactivity and osteoconductivity. In recent years, many studies have illustrated biphasic calcium phosphates perform osteoinductivity both in vitro and in vivo, which is expected to become a good choice for bone graft substitutes. However, the critical factors triggering the osteoinduction process and mechanism of this phenomenon are still indistinct.
OBJECTIVE: To review the influencing factors and mechanism related to the osteoinductivity of biphasic calcium phosphates.
METHODS: The Ovid Medline database and PubMed database (1985-01/2013-01) were used to search the related articles about the osteoinductive property of biphasic calcium phosphates. The key words were “bone graft substitutes, biphasic calcium phosphates, osteoinduction”. Articles concerning the osteoinductive property of biphasic calcium phosphates were included. The articles that published recently or in the high-impact journals were preferred, and articles with repetitive contents were ruled out. Then 34 articles were suitable for further analysis.
RESULTS AND CONCLUSION: The chemical composition of biphasic calcium phosphates influences the rate of degradation/resorption as well as bioactivity, which in turn has an influence on the osteoinductivity; the physical properties also play important roles in osteoinductivity by affecting the absorption of bone morphogenetic proteins, vascularization, tissue invasion, microenvironment, and more importantly, triggering the undifferentiated stem cells into osteogenic lineage. What’s more, the species of animals, the implantation-site and the implant size are also critical for osteoinduction. Therefore, through the further study on the influencing factors and mechanism of osteoinduction, biphasic calcium phosphates with stable osteoinductivity, as a promising bone graft substitute, could be synthesized for clinical applications.

Key words: hydroxyapatites, review, ceramics, calcium phosphates

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