中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (16): 2519-2525.doi: 10.3969/j.issn.2095-4344.2014.16.010

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

复合壳聚糖微球-丝素基载药α-磷酸三钙骨水泥的细胞相容性及毒性

王金宁,皮 斌,王 鹏,朱雪松,杨惠林   

  1. 苏州大学附属第一医院骨科,江苏省苏州市 215006
  • 修回日期:2014-02-01 出版日期:2014-04-16 发布日期:2014-04-16
  • 通讯作者: 朱雪松,副研究员,苏州大学附属第一医院骨科,江苏省苏州市 215006 杨惠林,教授,博士生导师,苏州大学附属第一医院骨科,江苏省苏州市 215006
  • 作者简介:王金宁,男,1987年生,辽宁省锦州市人,汉族,苏州大学在读硕士,主要从事生物材料,脊柱外科研究 并列第一作者:皮斌,男,1985年生,湖南省常德市人,汉族,2012年中南大学毕业,博士,医师,主要从事脊柱外科生物材料研究。
  • 基金资助:

    国家自然科学基金资助项目(81071451、81171689、81301559);江苏省自然科学基金资助项目(BK2011264、SBK201341421);江苏省教育厅研究生创新计划(CXZZ11_0123)

Cytocompatibility and cytotoxicity of a novel composite bone cement material composed of chitosan microsphere, alpha-tricalcium phosphate and silk fibroin

Wang Jin-ning, Pi Bin, Wang Peng, Zhu Xue-song, Yang Hui-lin   

  1. Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
  • Revised:2014-02-01 Online:2014-04-16 Published:2014-04-16
  • Contact: Zhu Xue-song, Associate investigator, Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China Yang Hui-lin, Professor, Doctoral supervisor, Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
  • About author:Wang Jin-ning, Studying for master’s degree, Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China Pi Bin, M.D., Physician, Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China Wang Jin-ning and Pi Bin contributed equally to this work.
  • Supported by:

    the National Natural Science Foundation of China, No. 81071451, 81171689, 81301559; the Natural Science Foundation of Jiangsu Province, No. BK2011264, SBK201341421; the Graduate Innovative Plan of Jiangsu Provincial Educational Bureau, No. CXZZ11_0123

摘要:

背景:磷酸钙骨水泥具有良好的生物相容性和骨传导性,已被应用于临床,但其不良的力学性能和缺乏骨诱导性限制了其进一步发展和应用。

目的:制备壳聚糖微球-丝素基载药α-磷酸三钙骨水泥,验证其细胞相容性及细胞毒性。
方法:分别以含体积分数10%胎牛血清和1%双抗的α-MEM培养基、苯酚、100%及50%复合壳聚糖微球-丝素基载药α-磷酸三钙骨水泥材料的浸提液培养MC3T3-E1细胞,采用MTT法评估细胞生长增殖情况,采用乳酸脱氢酶活性检测法判断复合壳聚糖微球-丝素基载药α-磷酸三钙骨水泥材料的毒性。将MC3T3-E1细胞系与复合壳聚糖微球-丝素基载药α-磷酸三钙骨水泥材料共培养,扫描电镜观察细胞在材料表面的附着及生长。

结果与结论:复合壳聚糖微球-丝素基载药α-磷酸三钙骨水泥材料浸提液对MC3T3-E1细胞的生长增殖无明显影响,无明显细胞毒性。MC3T3-E1细胞在复合壳聚糖微球-丝素基载药α-磷酸三钙骨水泥材料表面生长良好,伸展充分,在材料表面伸出伪足,与材料贴附紧密,表明壳聚糖微球-丝素基载药α-磷酸三钙骨水泥细胞相容性良好。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 骨生物材料, 丝素基磷酸钙骨水泥, 壳聚糖微球, 浸提液, MC3T3-E1细胞, 细胞增殖, MTT法, 乳酸脱氢酶活性, 国家自然科学基金

Abstract:

BACKGROUND: With excellent biocompatibility and osteoconduction, calcium phosphate bone cement has been used in clinic, but the poor mechanical properties and lack of osteoinduction restrict its further use.

OBJECTIVE: To investigate the cytocompatibility and cytotoxicity of a novel drug-carrying composite of bone cement composed of chitosan microsphere, α-tricalcium phosphate and silk fibroin.
METHODS: MC3T3-E1 cells were cultured in vitro in minimum essential medium alpha medium (α-MEM), which was supplemented with 10% fetal bovine serum, and 1% streptomycin sulfate, extract of the cement material at concentrations of 100% and 50%, and 6.4 mL/L phenol. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to measure cell proliferation and the cytotoxicity was assessed by the activity of lactate dehydrogenase. The MC3T3-E1 cells cultured in vitro were collected and seeded on the composite cement material, and cell morphology was observed by scanning electron microscope.

RESULTS AND CONCLUSION: The extract of composite cement material had no influences on the MC3T3-E1 cell proliferation, showing no obvious cytotoxicity. The scanning electron microscope image showed MC3T3-E1 cells adhered and proliferated well on the composite cement material composed of chitosan microsphere, α-tricalcium phosphate and silk fibroin, and pseudopodia out of the cells were closely attached to the material surface. In conclusion, the cement composite was proved to have satisfactory cytocompatibility and no obvious cytotoxicity.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: biocompatible materials, calcium phosphates, chitosan, silk

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