中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (4): 545-550.doi: 10.3969/j.issn.2095-4344.2017.04.009

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

口腔颌面组织工程血管的初步构建

杨兴华1,2,彭  琳1,韩晓燕2,陈岱韵2   

  1. 1烟台业达医院口腔科,山东省烟台市  264006;2泰山医学院口腔医学院口腔颌面外科,山东省泰安市  271000
  • 收稿日期:2016-12-07 出版日期:2017-02-08 发布日期:2017-03-13
  • 作者简介:杨兴华,男,1972年生,山东省泰安市人,汉族,2006年山东大学毕业,硕士,副主任医师,副教授,主要从事口腔牙槽外科疾病及牙髓病的临床诊治与基础研究。2015年8月由泰山医学院口腔医学院调入烟台业达医院工作。
  • 基金资助:

    山东省教育厅立项项目(J13LL01);山东省卫生厅立项项目(2009HW094)

Preliminary construction of the tissue-engineered oral and maxillofacial vessel

Yang Xing-hua1, 2, Peng Lin1, Han Xiao-yan2, Chen Dai-yun2   

  1. 1Department of Stomatology, Yeda Hospital of Yantai, Yantai 264006, Shandong Province, China; 2Department of Oral and Maxillofacial Surgery, School of Stomatology, Taishan Medical University, Taian 271000, Shandong Province, China
  • Received:2016-12-07 Online:2017-02-08 Published:2017-03-13
  • About author:Yang Xing-hua, Master, Associate chief physician, Associate professor, Department of Stomatology, Yeda Hospital of Yantai, Yantai 264006, Shandong Province, China
  • Supported by:

    the Project of the Education Department of Shandong Province, No. J13LL01; the Project of the Health Department of Shandong Province, No. 2009HW094

摘要:

文章快速阅读:

文题释义:

人工血管:是许多严重狭窄或闭塞性血管的替代品,多是以尼龙、涤纶、聚四氟乙稀等合成材料人工制造的,适用于全身各处的血管转流术,大、中口径人工血管应用于临床已取得满意的效果。
血管组织工程:是指利用血管壁的正常细胞和生物可降解材料来制备、重建和再生血管替代材料的科学。国内外已经进行了较多的研究以期研制出无免疫原性,抗血栓形成、组织和细胞相容性高,具有一定强度和生长性并能广泛应用于临床的血管替代物,以期解决临床上治疗血管狭窄或闭塞导致的缺血性疾病自体血管移植及血管来源有限的问题。
摘要
背景
:大型骨缺损因缺乏有效血供,当骨的厚度过大时,骨细胞就会因缺乏营养而坏死,限制了工程骨在大型骨缺损中的应用。
目的:分析兔骨髓基质干细胞和脐静脉血管内皮细胞体外培养后与自制兔主动脉脱细胞血管基质构建人工血管的可能性。
方法:全血贴壁法培养兔骨髓基质干细胞,体外分离培养人脐静脉内皮细胞,制备兔主动脉脱细胞血管支架。把培养后的干细胞、内皮细胞与脱细胞血管支架复合,观察与载体材料的生物相容性并进行电镜扫描观察。血管支架-细胞复合物分为3组:空白组(空白组支架)、对照组(由骨髓基质干细胞复合血管支架构成)、实验组(由骨髓基质干细胞与内皮细胞复合血管支架),每组各10条。以上3组分别植入兔皮下小血管旁。术后3个月取血管标本,进行大体观察及苏木精-伊红染色组织切片检测。
结果与结论:①全血贴壁可形成成纤维样细胞克隆,细胞爬片后CD44+、STRO-1+免疫荧光测定显示阳性;钙化结节茜素红染色阳性。内皮细胞经流式细胞仪测CD34+占43.83%,Ⅷ因子免疫荧光检测阳性;②血管支架-细胞复合物经电镜扫描观察内细胞在支架表面形成单细胞层。3个月后皮下人工血管生长较好,均形成管状结构;空白组薄层膜样血管形成,对照组仅有内皮样组织形成血管,实验组有8条血液流通样血管形成;③结果说明,血管支架-细胞(内皮、干细胞)复合物兔皮下血管旁植入后,可形成血管样结构,细胞间未见免疫反应产生,但人工血管未见肌层形成。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0001-7256-5383(杨兴华)

关键词: 组织构建, 组织工程, 间质干细胞, 内皮细胞, 人工血管工程

Abstract:

Abstract
BACKGROUND
: Insufficient blood supply after major bone defects leads to osteocyte necrosis; therefore, the tissue-engineered bone cannot meet the clinical requirements.
OBJECTIVE: To construct an artificial vessel using in vitro cultured rabbit bone marrow stromal stem cells and human umbilical vein endothelial cells combined with the rabbit aortic decellularized vascular matrix.
METHODS: Rabbit bone marrow stromal stem cells were cultured by adherent method, human umbilical vein endothelial cells were cultured in vitro and isolated, and rabbit aortic decellularized vascular stent was prepared. The stent-cell composite was constructed, and its biocompatibility was observed under scanning electron microscope. There were three groups: blank control, control (bone marrow stromal stem cell-stent) and experimental (stent-cell composites) groups (n=10 per group), followed by implantation around the small vessels. Three months later, the vascular samples were collected for gross observation and hematoxylin-eosin staining.
RESULTS AND CONCLUSION: Fibroblast-like cell clones were formed by adherent method, and were positive for CD44+ and STRO-1+ after climbing; calcified nodule formed in the ossification. Flow cytometry showed CD34+ accounting for 43.83%, and visible VIII factor in the endothelial cells. In the experimental group, endothelial cells formed a single cell layer onto the scaffold under scanning electron microscope; the artificial vessel grew well and tubular structure presented and eight angiod structures were found. Thin film-like vessels formed in the blank control group and there were only endothelial-like tissues in the control group. These results suggest that angiod structures can form after the stent-cell composite implantation, causing no immune reaction, but the artificial vessel is visible in absence of muscular layer.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Stem cells, Endothelial Cells, Blood Vessel Prosthesis, Tissue Engineering

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