›› 2020, Vol. 40 ›› Issue (1): 7-12.

• 基础研究 • 上一篇    下一篇

联合VEGF-165和PDGF-BB促进骨髓间充质干细胞血管化的体内研究

毕翔宇1,孙安1,何惠宇2   

  1. 1. 新疆医科大学附属第一医院
    2. 新疆医科大学第一附属医院
  • 收稿日期:2019-07-08 修回日期:2019-07-29 出版日期:2020-01-28 发布日期:2020-01-16
  • 通讯作者: 何惠宇 E-mail:hehuiyu01@126.com
  • 基金资助:
    3D打印构建组织工程颌骨体内可降解支架模型及其成骨机制的研究

In vivo study of coadministration of vascular endothelial growth factor-165 and platelet-derived growth factor-bb to Promote the Vascularization of Bone Marrow Steam Cell

  • Received:2019-07-08 Revised:2019-07-29 Online:2020-01-28 Published:2020-01-16

摘要: 目的:研究在血管生成早期联合应用血管内皮生长因子(VEGF-165)与血小板衍生生长因子(PDGF-bb)对血管新生的影响。方法:共选取40只雄性SD大鼠,体重200-250g,随机分为4组,每组10只。包括细胞加入VEGF组(V组)、细胞加入PDGF组、细胞加入VEGF及PDGF组(V+P组)和单纯细胞植入组(D组)。于腹部正中作一1.5-2.0cm切口将加入因子的细胞植入大鼠腹部皮下,分别于术后2周和4周取出进行成血管相关基因的检测及组织学观察新生血管的面积、数量和直径。结果:术后2周V组的新生血管中可见过度扩张的血管瘤样结构,血管直径明显大于另外3组。VP组血管成熟度较高,成血管相关基因的表达量明显高于其他3组。各时间点VP组血管数量均高于另外3组。2周和4周时成血管基因表达量和血管面积、直径及数量间无明显差异。P≤0.05认为差异具有统计学意义。结论:VEGF与PDGF联合作用于骨髓间充质干细胞存在协同作用,有效促进新血管的生成,有助于组织工程骨血管化的研究。

关键词: 骨髓间充质干细胞 , 血管化, 血管内皮生长因子, 血小板衍生生长因子, 组织工程骨

Abstract: Objective: study the synergistic effect of coadministration of vascular endothelial growth factor-165 and platelet-derived growth factor-bb in the early stage of angiogenesis. Method: we made an incision with 1.5-2.0cm in the abdomen of Sprague-Dawley rat and then VEGF mix BMSC cell sheet(group V);PDGF mix BMSC cell sheet(group P); VEGF and PDGF mix BMSC cell sheet(group V+P) and BMSC cell sheet(group D) were transplanted to the subcutaneous of abdomen respectively.Through RT-PCR study the angiogenesis related geng expression and use histology method to calculate the vascular area,diameter,and quantity. Result: angioma like vessel has seen in V group at 2 week after surgery.V group also has aggressively larger vessel diameter than the other group. VP group has relatively more mature vascular,gene sxpression,and vascular quantity at any point of time.But V group,P group,and D group has no statistical significant in gene expression and vessel diameter,area,and quantity between the two time point.Conclusion: Coadministration of VEGF and PDGF with BMSC can promote vascularization in vivo.This result can help the research of tissue engineering in the future.

Key words: vascular endothelial growth factor, platelet-derived growth factor, bone marrow steam cell, bone tissue engineering, vascularization