中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (12): 1870-1876.doi: 10.3969/j.issn.2095-4344.2014.12.011

• 复合支架材料 composite scaffold materials • 上一篇    下一篇

新鲜骨髓吸出物直接种植于支架构建组织工程韧带

王  洪,汤  明,孟春庆,王寒琪,杨述华,杜靖远,段德宇,邵增务   

  1. 华中科技大学同济医学院附属协和医院骨科,湖北省武汉市  430022
  • 修回日期:2014-01-03 出版日期:2014-03-19 发布日期:2014-03-19
  • 通讯作者: 王洪,主任医师,华中科技大学同济医学院附属协和医院骨科,湖北省武汉市 430022
  • 作者简介:王洪,男,1964年生,湖北省黄冈市人,汉族,1993年同济医科大学毕业,硕士,主任医师,主要从事关节镜及运动医学研究。
  • 基金资助:

    湖北省自然科学基金(2009CDB412)

Seeding fresh bone marrow aspirate directly on scaffolds to construct tissue-engineered ligament

Wang Hong, Tang Ming, Meng Chun-qing, Wang Han-qi, Yang Shu-hua, Du Jing-yuan, Duan De-yu, Shao Zeng-wu   

  1. Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
  • Revised:2014-01-03 Online:2014-03-19 Published:2014-03-19
  • Contact: Wang Hong, Master, Chief physician, Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
  • About author:Wang Hong, Master, Chief physician, Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
  • Supported by:

    the Natural Science Foundation of Hubei Province, No. 2009CDB412

摘要:

背景:有关于应用新鲜骨髓吸出物直接局部注射修复韧带部分损伤的报道,少有提及应用新鲜骨髓吸出物直接种植于支架构建组织工程韧带的研究报道。
目的:评价将新鲜骨髓吸出物直接种植于支架构建组织工程韧带的可行性。
方法:构建丝素纤维/小肠黏膜下层复合支架后,骨髓种植组将骨髓吸出物直接种植于复合支架上;细胞种植组将骨髓间充质干细胞种植于复合支架上;以未接种任何物质的复合支架作为空白对照,检测各组细胞黏附密度、细胞增殖活性及细胞外基质分泌情况。将骨髓种植组复合物植入兔前交叉韧带横断处,12周后取材评价骨髓种植组材料体内生物相容性。
结果与结论:骨髓种植组孵育4 h后的细胞黏附密度、不同时间点细胞增殖率显著高于细胞种植组(P < 0.05)。骨髓种植组及细胞种植组Ⅰ型、Ⅲ型胶原分泌量均显著高于空白对照组(P < 0.05),但骨髓种植组及细胞种植组两组间Ⅰ型、Ⅲ型胶原分泌量差异无显著性意义。骨髓种植组材料植入兔体内未引起致死性免疫排斥反应及严重炎症反应,未见明显韧带再生及血管化。说明新鲜骨髓吸出物直接种植于支架可构建组织工程韧带,并且体内短期生物相容性良好。


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, 材料相容性, 复合支架材料, 韧带组织工程, 细胞种植方法, 新鲜骨髓吸出物, 体内、外生物相容性, 复合生物型支架, 湖北省自然科学基金

Abstract:

BACKGROUND: There are several reports about the application of fresh bone marrow aspirate being injected directly to repair partial ligament injury, but the application about fresh bone marrow aspirate directly being planted on scaffolds to build tissue-engineered ligament is rarely mentioned.
OBJECTIVE: To evaluate the feasibility of applying fresh bone marrow aspirate planted directly on scaffolds to construct tissue-engineered ligament
METHODS: We constructed fibroin fiber/small intestinal submucosa composite scaffold, then planting fresh bone marrow directly to built bone marrow seeding group and planting seed cells (bone marrow mesenchymal stem cells) on the scaffold to built cell seeding group. The control group had no treatment. After that, we detected the density of cell adhesion, cell proliferation ability and extracellular matrix secretion. Then, the composite in the bone marrow seeding group was implanted into the broken anterior cruciate ligament in rabbits, and material biocompatibility in vivo was evaluated after 12 weeks.
RESULTS AND CONCLUSION: After 4 hours of incubation, bone marrow seeding group was significantly higher than the cell seeding group in cell adhesion density and proliferation rate (P < 0.05). Bone marrow seeding group and cell seeding group showed higher type I, III collagen secretion compared with the control group (P < 0.05), but the collagen secretion of bone marrow seeding group and cell seeding group showed no significant difference. Composite cell scaffold implantation in vivo did not cause fatal immune rejection and severe inflammatory reaction, and no significant ligament regeneration and vascularization occurred. These findings indicate that fresh bone marrow aspirate can be seeded directly on scaffolds to construct tissue-engineered ligament, and the short-term biocompatibility in vivo is good.


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, stents, ligaments, bone marrow

中图分类号: