中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (19): 3000-3003.doi: 10.3969/j.issn.2095-4344.3525

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

兔主动脉内皮细胞的分离培养及生物学特性

曹  阳1, 张军平2,彭  立3,丁  义4,李光辉1   

  1. 1天津中医药大学附属武清中医院,天津市  301700;2天津中医药大学第一附属医院,天津市  300193;3贵州中医药大学,贵州省贵阳市  550025;4天津市红桥区邵公庄街社区卫生服务中心,天津市  300122
  • 收稿日期:2020-06-08 修回日期:2020-06-13 接受日期:2020-07-31 出版日期:2021-07-09 发布日期:2021-01-13
  • 通讯作者: 张军平,博士,主任医师,教授,副院长,天津中医药大学第一附属医院,天津市 300193
  • 作者简介:曹阳,女,1984年生,黑龙江省肇州县人,汉族,2013年天津中医药大学毕业,硕士,主治医师,主要从事中医药防治心血管病方面的研究。

Isolation and culture of rabbit aortic endothelial cells and biological characteristics

Cao Yang1, Zhang Junping2, Peng Li3, Ding Yi4, Li Guanghui1   

  1. 1Wuqing Hospital of Traditional Chinese Medicine Affiliated to Tianjin University of Traditional Chinese Medicine, Tianjin 301700, China; 2First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; 3Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou Province, China; 4Community Health Service Center of Shaogongzhuang Street of Hongqiao District of Tianjin, Tianjin 300122, China 
  • Received:2020-06-08 Revised:2020-06-13 Accepted:2020-07-31 Online:2021-07-09 Published:2021-01-13
  • Contact: Zhang Junping, MD, Chief physician, Professor, First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
  • About author:Cao Yang, Master, Attending physician, Wuqing Hospital of Traditional Chinese Medicine Affiliated to Tianjin University of Traditional Chinese Medicine, Tianjin 301700, China

摘要:

文题释义:
酶消化法:是利用消化酶解离组织等的一种方法。
CD34免疫细胞化学染色:CD34属于A型跨膜蛋白的磷酸糖蛋白,是一种相对分子质量为110 000的单链跨膜蛋白,主要表达于造血干细胞、急性白血病细胞和血管内皮细胞,因此CD34可作为血管内皮细胞的特异性标记物之一。

背景:为获得大量高纯度的内皮细胞,以便更好地开展对内皮细胞相关疾病的实验研究,此次研究通过改进消化酶配比比例,更新内皮细胞的分离、培养方法。
目的:探索兔主动脉内皮细胞的体外培养方法,并对其进行鉴定,为更好地开展对内皮细胞相关疾病的实验研究奠定基础。
方法:采用复合酶消化法,获取兔主动脉内皮组织及细胞悬液,经密度梯度离心后,获得纯度较高的血管内皮细胞,并进行体外培养。进一步对兔主动脉内皮细胞进行CD34免疫细胞化学染色鉴定,并进行细胞纯度分析。
结果与结论:①体外培养出的血管内皮细胞在形态上呈典型的“铺路石”状排列;②此外免疫组化显示分离的细胞可强阳性表达CD34,证明其为内皮细胞;③对免疫组化照片进行定量分析,显示所有细胞均为CD34阳性细胞,即获得的内皮细胞纯度约大于95%;④提示采用复合酶消化法获取的兔主动脉内皮组织及细胞悬液,经密度梯度离心后,可获得纯度较高的血管内皮细胞,并通过体外培养的方法成功分离并培养了兔主动脉内皮细胞。


关键词: 兔, 主动脉, 内皮细胞, 原代培养, 鉴定, CD34, 细胞纯度

Abstract: BACKGROUND: To obtain a large number of high-purity endothelial cells, so as to carry out better experimental research on endothelial cell-related diseases, this paper updated the separation and culture methods of endothelial cells by improving the ratio of digestive enzymes.
OBJECTIVE: To explore the culture method of rabbit aortic endothelial cells in vitro and identify them, so as to lay a foundation for better experimental study of endothelial cell-related diseases.
METHODS: The endothelial tissue and cell suspension of rabbit aorta were obtained by compound enzyme digestion. After density gradient centrifugation, high-purity vascular endothelial cells were obtained and cultured in vitro. Furthermore, the rabbit aortic endothelial cells were identified by CD34 immunocytochemical staining and the cell purity was analyzed.
RESULTS AND CONCLUSION: (1) The vascular endothelial cells cultured in vitro were arranged in the shape of typical “paving stone”. (2) In addition, immunohistochemistry showed that the isolated cells were strongly positive for CD34-staining, to prove that they were endothelial cells. (3) The quantitative analysis of the immunohistochemical photos showed that all the cells were CD34-positive cells; that is, the purity of the obtained endothelial cells was more than 95%. (4) The endothelial tissue and cell suspension of rabbit aorta were obtained by compound enzyme digestion. After density gradient centrifugation, high-purity vascular endothelial cells were obtained. Rabbit aortic endothelial cells were isolated and cultured successfully in vitro. 

Key words: rabbit, aorta, endothelial cells, primary culture, identification, CD34, cell purity

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