华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

组织工程法修复面肌的动物实验研究

黄桂林,李龙江,温玉明,王昌美,唐休发   

  1. 610041 四川大学华西口腔医院口腔颌面外科(黄桂林现在遵义医学院口腔医院口腔颌面外科工作
  • 收稿日期:2003-12-25 修回日期:2003-12-25 出版日期:2003-12-20 发布日期:2003-12-20
  • 基金资助:

    本课题为贵州省科技厅自然基金资助项目(编号黔计字2001, 3090)

Functional Reconstruction with Tissue Engineered Myoblast in Facial Muscle of Rat

HUANG Guilin,LILongjiang,WENYuming,et al   

  1. Department ofOral andMaxillofacial Surgery,West China College ofSto- matology,Sichuan University,Chengdu610041,China
  • Received:2003-12-25 Revised:2003-12-25 Online:2003-12-20 Published:2003-12-20

摘要:

目的 探讨组织工程化的成肌细胞修复面肌缺损的可能性。方法 获取SD新生鼠成肌细胞,经酶消化、纯化、培养传代后与Ⅰ型胶原海绵混合培养形成组织工程块,植入切除面肌的同种成年SD大鼠面部,分别于术后8、16周,检查面神经上颊支的肌电生理情况,并对组织工程块进行形态学观察。结果 组织工程化的成肌细胞在体外培养生长分化良好。在动物体内存活并形成肌纤维,肌块内见血管、神经生长,肌电检测见动作电位。结论 组织工程法可能为缺损面肌的仿真修复提供新的理论、方法。

关键词: 成肌细胞, 组织工程, 面肌, 功能修复

Abstract:

Objective The purpose of this article is to discuss the reconstruction of facial muscle defectswith tissue engi- neered myoblast in SD rats.Methods Using purified, subcultured myoblast of neonatal rats and typeⅠcollagen gels as extracel- lular matrix (ECM) and scaffold, tissue engineered musclewas transplanted in the face of syngeneic mutured rats.Results Tissue engineered myoblast generated and differentiatedin vitrowere observed with microscope. Myoblast fused each other and formed myofibers in the face of rats, nerve fibers and vessels regeneration could also be found in some samples. Postoperative electromyo- graphs showed the myofiberswere active when stimulating the nerve trunk that innervates the engineered facial muscle.Conclusion  Tissue engineered method is hopeful to be used as a new technique to reconstruct defects of facial muscle.

Key words: myoblast, tissue engineering, facial muscle, functional reconstruction