中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (47): 7561-7566.doi: 10.3969/j.issn.2095-4344.2015.47.004

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

人血管内皮细胞生长因子121基因修饰材料修复桡骨火器性骨缺损

王建忠1,李兵仓2,任 宝1,高 飞1,李聪杰1,刘 伟1,王晓冬1,雷 鸣1,高文山1   

  1. 1河北大学附属医院,河北省保定市 071000;2解放军第三军医大学大坪医院野战外科研究所第6研究室,创伤烧伤复合伤国家重点实验室,重庆市 400042
  • 收稿日期:2015-10-21 出版日期:2015-11-19 发布日期:2015-11-19
  • 通讯作者: 李兵仓,解放军第三军医大学大坪医院野战外科研究所第6研究室,创伤烧伤复合伤国家重点实验室,重庆市400042
  • 作者简介:王建忠,男,1968年生,河北省蠡县人,博士,副主任医师。
  • 基金资助:

    全军医学科学技术研究“十五”指令性课题(01L060);河北省科学技术研究与发展计划项目(072761417)

Human vascular endothelial growth factor 121 gene-modified materials repair firearm-induced radial defects

Wang Jian-zhong1, Li Bing-cang2, Ren Bao1, Gao Fei1, Li Cong-jie1, Liu Wei1, Wang Xiao-dong1, Lei Ming1, Gao Wen-shan1   

  1. 1Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China; 2the Sixth Laboratory, Institute of Field Surgery, Daping Hospital, Third Military Medical University of PLA, National Key Laboratory of Wound, Burn Injury and Complex Wounds, Chongqing 400042, China
  • Received:2015-10-21 Online:2015-11-19 Published:2015-11-19
  • Contact: Li Bing-cang, the Sixth Laboratory, Institute of Field Surgery, Daping Hospital, Third Military Medical University of PLA, National Key Laboratory of Wound, Burn Injury and Complex Wounds, Chongqing 400042, China
  • About author:Wang Jian-zhong, M.D., Associate chief physician, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China
  • Supported by:

     the Mandatory Subjects of Army Medical Science and Technology Research during the Tenth Five-Year Period, No. 01L060; Science and Technology Research Development Program of Hebei Province of China, No. 072761417

摘要:

BACKGROUND: Bone defects are the leading cause of nonunion after firearm injury. Firearm injury is relatively special. Autograft and allograft all have big drawbacks, which cannot meet the requirements of basic-level hospitals. Using tissue-engineered bone with good blood vessels and osteogenic capability in repair of firearm bone defect will be an ideal and feasible restoration method.

OBJECTIVE: To explore the application of human vascular endothelial growth factor 121 gene-modified materials in the repair of firearm-induced radial injury in rabbits.
METHODS: A total of 128 rabbits were randomly divided into surgical injury group and firearm injury group (n=64 per group). In the firearm injury group, 0.25 g steel ball was launched using 56-style musket to establish a firearm radial injury model; in the surgical injury group, surgical methods were used to produce a 1.2 cm radial injury model. Human vascular endothelial growth factor 121 gene-modified materials were used. The related histocytes from rabbits were harvested to obtain bone marrow stromal cells for culture. A porous scaffold material was prepared. The obtained materials were respectively implanted into radial defect sites in the surgical injury and firearm injury groups. The application of human vascular endothelial growth factor 121 gene-modified materials in rabbit radial defect repair was analyzed.
RESULTS AND CONCLUSION: Compared with the surgical injury group, at 8, 12 and 16 weeks after repair, the gray level ratio of bone defect site and the anti-compression mechanical ratio at the healthy and repairing sides of the radius in the firearm injury group were decreased (P < 0.05), and the new bone area increased (P < 0.05). At 2 and 4 weeks after repair, the local blood flow at the repair area was significantly increased (P < 0.05). These results suggest that compared with the surgical injury group, the curative effect of human vascular endothelial growth factor 121 gene is more ideal in the firearm injury group because of the emergence of local ischemia and hypoxia in the process of radial defect repair. Human vascular endothelial growth factor 121-modified material can repair bone marrow stromal cells. The application of human vascular endothelial growth factor 121 in firearm burns can enhance the synthesis and secretion of angiogenic factors, improve the local blood flow, reduce anti-compression mechanical ratio, and increase the new bone area.
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

关键词: Tissue Engineering, Biocompatible Materials, Bone Transplantation

Abstract:

BACKGROUND: Bone defects are the leading cause of nonunion after firearm injury. Firearm injury is relatively special. Autograft and allograft all have big drawbacks, which cannot meet the requirements of basic-level hospitals. Using tissue-engineered bone with good blood vessels and osteogenic capability in repair of firearm bone defect will be an ideal and feasible restoration method.

OBJECTIVE: To explore the application of human vascular endothelial growth factor 121 gene-modified materials in the repair of firearm-induced radial injury in rabbits.
METHODS: A total of 128 rabbits were randomly divided into surgical injury group and firearm injury group (n=64 per group). In the firearm injury group, 0.25 g steel ball was launched using 56-style musket to establish a firearm radial injury model; in the surgical injury group, surgical methods were used to produce a 1.2 cm radial injury model. Human vascular endothelial growth factor 121 gene-modified materials were used. The related histocytes from rabbits were harvested to obtain bone marrow stromal cells for culture. A porous scaffold material was prepared. The obtained materials were respectively implanted into radial defect sites in the surgical injury and firearm injury groups. The application of human vascular endothelial growth factor 121 gene-modified materials in rabbit radial defect repair was analyzed.
RESULTS AND CONCLUSION: Compared with the surgical injury group, at 8, 12 and 16 weeks after repair, the gray level ratio of bone defect site and the anti-compression mechanical ratio at the healthy and repairing sides of the radius in the firearm injury group were decreased (P < 0.05), and the new bone area increased (P < 0.05). At 2 and 4 weeks after repair, the local blood flow at the repair area was significantly increased (P < 0.05). These results suggest that compared with the surgical injury group, the curative effect of human vascular endothelial growth factor 121 gene is more ideal in the firearm injury group because of the emergence of local ischemia and hypoxia in the process of radial defect repair. Human vascular endothelial growth factor 121-modified material can repair bone marrow stromal cells. The application of human vascular endothelial growth factor 121 in firearm burns can enhance the synthesis and secretion of angiogenic factors, improve the local blood flow, reduce anti-compression mechanical ratio, and increase the new bone area.
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

Key words: Tissue Engineering, Biocompatible Materials, Bone Transplantation