中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (28): 4469-4474.doi: 10.3969/j.issn.2095-4344.0331

• 血管组织构建 vascular tissue construction • 上一篇    下一篇

不同体积分数富血小板血浆对血管内皮细胞增殖和迁移的影响

张明宇,任  博,杨  镇,张  宪,郑  江   

  1. 西安交通大学附属红会医院运动医学科,陕西省西安市  710054
  • 收稿日期:2018-03-14 出版日期:2018-10-08 发布日期:2018-10-08
  • 作者简介:张明宇,男,1976年生,河北省饶阳县人,汉族,2008年西安交通大学医学院毕业,博士,主要从事运动医学、关节外科方面的研究。
  • 基金资助:

    陕西省自然科学基金项目(2016JM8138);陕西省卫计委卫生科研项目(2014D51)

Effects of different volume fractions of platelet-rich plasma on the proliferation and migration of vascular endothelial cells

Zhang Ming-yu, Ren Bo, Yang Zhen, Zhang Xian, Zheng Jiang   

  1. Department of Sports Medicine, Xi’an Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, Shaanxi Province, China
  • Received:2018-03-14 Online:2018-10-08 Published:2018-10-08
  • About author:Zhang Ming-yu, MD, Department of Sports Medicine, Xi’an Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, Shaanxi Province, China
  • Supported by:

    the Natural Science Foundation of Shaanxi Province, No. 2016JM8138; the Health Research Project of Shaanxi Health and Family Planning Commission, No. 2014D51

摘要:

文章快速阅读:
文题释义:
富血小板血浆:是全血经梯度离心后得到的血小板浓缩物,其中血小板的含量是全血的3-5倍,并且在梯度离心过程中保留了大量生长因子、趋化因子及蛋白质。通过血小板的黏附、凝集将浓缩物中的生长因子从血小板颗粒中释放出来,这些生长因子可以促进多种细胞增殖分化、基质合成等作用。已经有文献报道其在促进血管内皮细胞增殖过程中发挥重要的作用,并且已经应用于骨缺损、软组织损伤修复、创面愈合及感染治疗等相关领域的研究和治疗中。
血管内皮细胞:是血管的重要组成部分,其不但参与构成血管的通透性屏障、调节生物大分子物质的选择性通透,还对凝血与抗凝功能、炎症反应的发生发展进行调控。已经有研究表明血小板血浆包含的多种细胞生物因子能够促进血管内皮细胞的增殖和迁移,在血管形成的生理过程中促进血管生成因子与内皮细胞受体结合,进一步激活内皮细胞相关的信号通路,诱导内皮细胞小管形成及新生血管基质合成。在骨组织修复过程中血管生成对成骨细胞及破骨细胞的生理机制也能产生重要的影响。
摘要
背景:
富血小板血浆富含多种促进血管形成的重要因子,不同体积分数的富血小板血浆均能促进血管内皮细胞增殖、分化及迁移,但是何种体积分数最为显著,目前还没有形成统一的认识。
目的:观察不同体积分数富血小板血浆对血管内皮细胞增殖活性及迁移能力的影响。
方法:采用酶消化法分离SD大鼠心脏微血管内皮细胞,分别用含体积分数为10%,20%,50%富血小板血浆的DMEM培养液进行培养。倒置显微镜下观察细胞形态,MTT比色法检测血管内皮细胞增殖情况,细胞划痕实验观察血管内皮细胞的迁移能力,最终筛选出最佳富血小板血浆体积分数。
结果与结论:①加入富血小板血浆干预后内皮细胞形态规则,生长旺盛,随培养时间延长大部分细胞变成多角形,细胞较大;②不同体积分数的富血小板血浆均对血管内皮细胞增殖具有促进作用,其中以培养    72 h体积分数为20%富血小板血浆组对细胞的增殖促进作用最为明显;③体积分数为20%,50%富血小板血浆明显促进细胞迁移,其中体积分数为20%富血小板血浆组细胞相对迁移距离最高;④结果表明,富血小板血浆可促进体外培养的血管内皮细胞增殖和迁移,且体积分数为20%富血小板血浆的作用效果最佳。 

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:
0000-0002-3538-4070(张明宇)

关键词: 富血小板血浆, 血管内皮细胞, 细胞增殖, 细胞迁移, 陕西省自然科学基金

Abstract:

BACKGROUND: Platelet-rich plasma (PRP) plays an important role in promoting angiogenesis of vascular endothelial cells. Different volume fractions of PRP have definite influence on vascular endothelial cells, but it is not clear PRP at which volume fraction is optimal.
OBJECTIVE: To investigate the effect of PRP at different volume fractions on the proliferation and migration of vascular endothelial cells in vitro.
METHODS: Hearts of Sprague-Dawley rats were mechanicaIly minced and enzymatically digested with collagenase. Vascular endothelial cells were counted and cultured in the DMEM culture medium containing various volume fractions of autologous PRP (10%, 20%, 50%) respectively. The cell morphology was observed under an inverted microscope, and cellular proliferation was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Afterwards, scratch test was utilized to detect the cell migration ability and the optimal volume fraction was determined.
RESULTS AND CONCLUSION: After addition of PRP, the well-grown endothelial cells presented with regular shape, changed into polygon-like and became large with time. Different volume fractions of PRP in particular 20% PRP cultured for 72 hours could promote cell proliferation. According to scratch test, 20% and 50% PRP significantly promoted the cell migration, especially 20% PRP. These results indicate that PRP can promote the proliferation and migration of vascular endothelial cells in vitro, and 20% is the optimal volume fraction.

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: Endothelial Cells, Platelet-Rich Plasma, Cell Proliferation, Cell Movement, Tissue Engineering

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