中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (14): 2259-2265.doi: 10.3969/j.issn.2095-4344.2017.14.021

• 生物材料综述 biomaterial review • 上一篇    下一篇

支架、细胞、因子:组织工程血管化策略的研究与前景

李海艳,邹  柳,申利贤,周  斌,张  苹,郭  玉   

  1. 南华大学药物药理研究所,湖南省分子靶标新药研究协同创新中心,湖南省衡阳市421001
  • 收稿日期:2016-12-19 出版日期:2017-05-18 发布日期:2017-06-10
  • 通讯作者: 郭玉,硕士,教授,南华大学药物药理研究所,湖南省分子靶标新药研究协同创新中心,湖南省衡阳市 421001
  • 作者简介:李海艳,女,湖南省邵阳市人,汉族,南华大学在读硕士,主要从事心血管药理与生物医药材料研究。

Scaffolds, cells and cytokines: vascularization strategies for tissue engineering

Li Hai-yan, Zou Liu, Shen Li-xian, Zhou Bin, Zhang Ping, Guo Yu   

  1. Institute of Pharmacy and Pharmacology, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang 421001, Hunan Province, China
  • Received:2016-12-19 Online:2017-05-18 Published:2017-06-10
  • Contact: Guo Yu, Master, Professor, Institute of Pharmacy and Pharmacology, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang 421001, Hunan Province, China
  • About author:Li Hai-yan, Studying for master’s degree, Institute of Pharmacy and Pharmacology, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang 421001, Hunan Province, China

摘要:

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文题释义:
新生血管形成的机制
:包括两种形式:血管的生成与血管的再生,这是根据血管形成过程中内皮细胞的来源不同而划分的,血管的生成是指在胚胎发育时期,内皮祖细胞在中胚层分化成血管内皮细胞从而形成新的血管,而血管的再生是指体内已存在的毛细血管或微静脉血管,通过血管内皮细胞的增殖、迁移、分化以出芽或者微血管融合生长的方式而形成新的血管。
血管生成素(Ang):是一族分泌型的生长因子,该家族主要由Ang-l、Ang-2、Ang-3和Ang-4 4种因子组成。Ang-l基因定位于8p22,相对分子质量约70 000,由498个氨基酸组成,含3个结构域,从N一端100个氨基酸为第一结构域,无同源性;第100-280氨基酸为第二结构域呈螺旋状盘绕,具有分泌型信号肽的典型特征;第280-496氨基酸是第三结构域,其空间排列方式与胶原蛋白家族极为相似,称为胶原蛋白样片段。


背景:随着组织工程皮肤、骨、软骨、血管、肌瓣等组织的再生与修复方面已取得显著的进展,组织工程组织血管化的障碍问题引起了学者们的广泛关注。 
目的:总结血管形成的机制(血管生成与血管再生),血管化的策略(种子细胞,支架材料,生长因子)以及组织血管化的模型(体内与体外)等与组织血管化相关的研究,为组织工程血管化的基础研究提供理论依据。
方法:计算机检索2000年1月至2016年4月PubMed、Springerlink、Web of Science、ScienceDirect数据库相关文献,检索词“tissue engineering、vascularization、 scaffolds、 cell growth factors、vasculogenesis、angiogenesis”;并检索中文期刊CNKI、维普、万方数据库相关文献,检索词为“组织工程、血管化、细胞生长因子、血管的再生、血管的生成”。55篇与组织血管化相关的同时反映其最新研究进展的文章被纳入。
结果与结论:体外构建组织内微血管中运用的较多,将支架材料做成具有血管样结构的模型,再种植二维细胞,在生长因子的刺激下,二维细胞朝着血管样结构的形状增殖、迁移,进而形成微小的血管。目前,大多数在体外实验能很好的形成血管的细胞-支架复合物,都沿着移植于体内方向发展。体内血管化模型中还存在着很多问题,移植于体内的炎症反应是不可避免的,它直接影响细胞-支架复合物的功能发挥及在体内的存活问题,在组织的再生与康复中,血管化仍是组织工程中一大难题。

ORCID: 0000-0002-5806-4483(李海艳)

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: 生物材料, 材料相容性, 血管化, 支架材料, 生长因子

Abstract:

BACKGROUND: Tissue-engineered skin, bone, cartilage, blood vessel, and muscle flap have achieved remarkable development in tissue repair and regeneration; meanwhile, the difficulty in tissue-engineered vascularization has attracted much attention.
OBJECTIVE: To summarize studies concerning the mechanism of angiogenesis (vasculogenesis and revascularization), vascularization strategies (seed cells, scaffolds, growth factors) and models of vascularization in tissue engineering (in vivo and in vitro), and to provide theoretical foundation for basic research of vascularization in tissue engineering.
METHODS: A computer-based research was performed for relevant literatures in PubMed, Springerlink, Web of Science, ScienceDirect, CNKI, CqVip and WanFang databases published between January 20002 and April 2016 using the keywords of “issue engineering, vascularization, scaffolds, cell growth factor, vasculogenesis, angiogenesis” in English and Chinese, respectively. Fifty-five eligible articles were included according to the inclusion and exclusion criteria.
RESULTS AND CONCLUSION: In vitro microvascular construction is commonly used. The angioid scaffold is prepared, and then cells are seeded onto the scaffold, which will proliferate, migrate and form microvessels induced by growth factors. The cell-scaffold composites that have good vascularization in vitro have been introduced via transplantation in in vivo experiments. However, there are some problems, such as the inevitable inflammatory reaction that makes a direct effect on the composite function and survival, and vascularization is still a difficulty in tissue regeneration and repair in the tissue engineering research.

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: Neovascularization, Physiologic, Stents, Cytokines, Tissue Engineering

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