中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (1): 83-88.doi: 10.3969/j.issn.2095-4344.2016.01.015

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

内皮样细胞与脐静脉内皮细胞的比较

郝晓娟1,郝海英1,朱敏杰1,袁 铮1,李伟伟1,陈 洁1,朱旅云2   

  1. 1邯郸市中心医院肾内二科,河北省邯郸市 056001;2白求恩国际和平医院,河北省石家庄市 050000
  • 收稿日期:2015-11-20 出版日期:2016-01-01 发布日期:2016-01-01
  • 作者简介:郝晓娟,女,1985年生,甘肃省民勤县人,汉族,硕士,主治医师,主要从事临床医学、内分泌及肾脏病学方面的研究。

Endothelial-like cells versus human umbilical vein endothelial cells 

Hao Xiao-juan1, Hao Hai-ying1, Zhu Min-jie1, Yuan Zheng1, Li Wei-wei1, Chen Jie1, Zhu Lv-yun2   

  1. 1Second Department of Nephrology, Handan Central Hospital, Handan 056001, Hebei Province, China; 2Bethune International Peace Hospital, Shijiazhuang 050000, Hebei Province, China
  • Received:2015-11-20 Online:2016-01-01 Published:2016-01-01
  • About author:Hao Xiao-juan, Master, Attending physician, Second Department of Nephrology, Handan Central Hospital, Handan 056001, Hebei Province, China

摘要:

文章快速阅读:

文题释义:

脐静脉内皮细胞:血管内表面由一层内皮细胞所覆盖,细胞直接与血液接触,通过多种途径在调节血压、凝血和纤溶、炎性细胞的黏附和迁移,以及血管形成等生理、病理过程中发挥重要作用。长期以来,对于人体血管内皮细胞的各项研究决大多数是基于人脐静脉内皮细胞。

内皮样细胞:是脐带间充质干细胞通过加入含血管内皮生长因子及碱性成纤维生长因子的内皮细胞诱导液诱导分化而来,经免疫组化鉴定强表达内皮细胞特异性的标志CD31、VWF。 

背景:干细胞可诱导分化为内皮样细胞,用于治疗糖尿病下肢血管病变,但诱导后的内皮样细胞是否完全可以取代内皮细胞改善血管病变呢?内皮样细胞与内皮细胞有哪些异同?尚未得到解决。
目的:探讨诱导后的内皮样细胞与脐静脉内皮细胞在形态、功能及活性方面的异同。
方法:分离、培养脐带间充质干细胞及脐静脉内皮细胞,分别通过流式细胞仪及免疫组化进行鉴定,将分离出的脐带间充质干细胞用含10 µg/L血管内皮生长因子、10 µg/L的碱性成纤维细胞生长因子及体积分数为2%胎牛血清的DMEM-LG/F12培养液向内皮样细胞方向诱导分化并用免疫组化进行鉴定,通过细胞迁移、活性物质测定及三维血管形成实验对内皮样细胞及内皮细胞进行比较。
结果与结论:分离的脐带间充质干细胞经流式及免疫组化鉴定高表达间充质干细胞相关表面标志,脐静脉内皮细胞经免疫组化鉴定高表达CD31和VWF。脐带间充质干细胞经诱导液诱导后,进行免疫组化鉴定高表达CD31和VWF。细胞迁移、活性物质及三维血管形成实验均显示诱导后的内皮样细胞在功能及活性上与内皮细胞相似,且优于内皮细胞。 

ORCID: 0000-0002-1480-7513(郝晓娟)

Abstract:

BACKGROUND: Stem cells are induced to differentiate into endothelial-like cells that can be used for the treatment of diabetic lower extremity vascular disease. However, it is unclear whether these endothelial-like cells can completely replace endothelial cells to improve vascular disease and what are the differences between endothelial-like cells and endothelial cells.
OBJECTIVE: To explore the differences and similarities between endothelial-like cells and human umbilical vein endothelial cells in the aspects of morphology, function, and viability.
METHODS: Umbilical cord mesenchymal stem cells and umbilical vein endothelial cells were isolated, cultured and identified using flow cytometry and immunohistochemical method. Isolated umbilical cord mesenchymal stem cells were induced in DMEM-LG/F12 containing 10 µg/L vascular endothelial growth factor, 10 µg/L basic 
fibroblast growth factor and 2% fetal bovine serum to differentiate into endothelial-like cells followed by immunohistochemical identification. To compare endothelial-like cells with human umbilical vein endothelial cells, cell migration detection, active substance measurement and three-dimensional angiogenesis test were performed.
RESULTS AND CONCLUSION: Isolated umbilical cord mesenchymal stem cells strongly expressed the surface markers of mesenchymal stem cells, and human umbilical vein endothelial cells strongly expressed CD31 and VWF. After induction, the umbilical cord mesenchymal stem cells were identified to highly express CD31 and VWF. Through cell migration, active substance and three-dimensional angiogenesis tests, endothelial-like cells were similar to endothelial cells in the function and activity, and superior to endothelial cells.
 中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程