中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (32): 5204-5209.doi: 10.3969/j.issn.2095-4344.2015.32.022

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

骨髓间充质干细胞藻酸钙移植物与复合降解膜修复皮肤缺损

王 楠1,孙佩杰2,苏秋香2,富 玲3,周 哲4,李娜然2,杨晓霞5   

  1. 1大连医科大学,辽宁省大连市  116044;沈阳医学院,2形态中心,5医学应用技术学院,辽宁省沈阳市  110034;
    3沈阳医学院附属奉天医院手外科,辽宁省沈阳市  110024;4沈阳市刑警支队法医司法鉴定中心,辽宁省沈阳市  110000
  • 出版日期:2015-08-06 发布日期:2015-08-06
  • 通讯作者: 李娜然,高级实验师,沈阳医学院形态中心,辽宁省沈阳市 110034 并列通讯作者:杨晓霞,硕士,教授,沈阳医学院医学应用技术学院,辽宁省沈阳市 110034
  • 作者简介:王楠,女,1992年生,辽宁省沈阳市人,汉族,2016年大连医科大学毕业,主要在导师的指导下从事组织损伤修复研究。

Calcium alginate/bone marrow mesenchymal stem cells combined with degradation membrane for repair of skin defects

Wang Nan1, Sun Pei-jie2, Su Qiu-xiang2, Fu Ling3, Zhou Zhe4, Li Na-ran2, Yang Xiao-xia5   

  1. 1Dalian Medical University, Dalian 116044, Liaoning Province, China; 
    2Morphology Center, Shenyang Medical College, Shenyang 110034, Liaoning Province, China; 
    3Department of Hand Surgery, Fengtian Hospital of Shenyang Medical College, Shenyang 110024, Liaoning Province, China; 
    4Forensic Center of Shenyang Interpol Detachment, Shenyang 110000, Liaoning Province, China; 
    5School of Medical Application Technology, Shenyang Medical College, Shenyang 110034, Liaoning Province, China
  • Online:2015-08-06 Published:2015-08-06
  • Contact: Li Na-ran, Senior experimentalist, Morphology Center, Shenyang Medical College, Shenyang 110034, Liaoning Province, China Corresponding author: Yang Xiao-xia, Master, Professor, School of Medical Application Technology, Shenyang Medical College, Shenyang 110034, Liaoning Province, China
  • About author:Wang Nan, Dalian Medical University, Dalian 116044, Liaoning Province, China

摘要:

背景:一直以来学者们认为皮肤移植是修复大面积组织缺损最有效的方法,但都存在供体来源限制和免疫排斥反应等问题,因此,加速真皮的构建在皮肤组织工程中极为重要。
目的:观察骨髓间充质干细胞藻酸钙凝胶、碱性成纤维细胞生长因子复合缓释降解膜修复皮肤缺损的效果。
方法:新西兰大耳白兔15只,取其自体髂骨骨髓,体外分离出骨髓间充质干细胞进行培养、扩增、传代并纯化备用;制作皮肤全层缺损模型3处,随机植入自体骨髓间充质干细胞藻酸钙凝胶、碱性成纤维细胞生长因子复合降解膜(实验组),自体骨髓间充质干细胞藻酸钙凝胶(对照1组),不含骨髓间充质干细胞的藻酸钙凝胶(对照2组),术后均用羊膜覆盖创面。术后7,14,21 d取新生创面组织,进行苏木精-伊红染色、免疫组织化学染色及图像分析仪测定。
结果与结论:实验组皮下真皮组织增生明显,其成纤维细胞、血管及胶原纤维较多,特别是术后14,21 d表皮增生较快,其覆盖范围较大,术后21 d,新生表皮大多重建呈多层结构,明显优于对照1组和对照2组。由此可见,骨髓间充质干细胞藻酸钙凝胶和碱性成纤维细胞生长因子复合降解膜植入皮肤缺损局部,加速了真皮组织的再生修复,从而促进表皮的再生和重建。

 

关键词: 干细胞, 移植, 骨髓间充质干细胞, 碱性成纤维细胞生长因子, 藻酸钙凝胶, 维生素C, 复合缓释降解膜, 羊膜, 皮肤缺损

Abstract:

BACKGROUND: Skin transplantation is regarded as the most effective therapy for large-area skin defects, which is limited by donor sources and immune rejection. Therefore, it is extremely accelerate the construction of the dermis in skin tissue engineering.
OBJECTIVE: To investigate the effects of bone marrow mesenchymal stem cells/calcium alginate gel, basic fibroblast growth factor and degradation membrane on the repair of full-thickness skin defects.
METHODS: Bone marrow mesenchymal stem cells were isolated from 15 New Zealand rabbits, and then cultured, amplified, subcultured and purified. Three full-thickness skin defects were made on the back of every rabbit, and randomly treated with bone marrow mesenchymal stem cells/calcium alginate gel, basic fibroblast growth factor and degradation membrane as experimental group, bone marrow mesenchymal stem cells/calcium alginate gel as control 1 group, and calcium alginate gel as control 2 group. The wounds were all covered with amniotic membrane. After 7, 14, 21 days, new wound tissues were taken for hematoxylin-eosin staining, immunohistochemistry staining and image analysis.
RESULTS AND CONCLUSION: Dermis tissues in the experimental group were obviously thicker than those in control 1 and control 2 groups; there were more fibroblasts, vessels and collagen fibers in the experimental group. Especially at 14 and 21 days after operation, epidermal hyperplasia was faster with a larger coverage area in the experimental group, and at 21 days, the new epidermal tissues mainly exhibited multi-layered structure, which was superior to the control 1 and 2 groups. It follows that the combination of bone marrow mesenchymal stem cells/calcium alginate gel, basic fibroblast growth factor and degradation membrane for skin defects can accelerate the repair and regeneration of the dermis, and thus promote the epidermis regeneration and reconstruction.

 

Key words: Bone Marrow, Mesenchymal Stem Cells, Alginates, Fibroblast Growth Factor 2

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