畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (10): 2143-2150.doi: 10.11843/j.issn.0366-6964.2016.10.024

• 研究简报 • 上一篇    

大鼠肺微血管内皮细胞的体外分离培养与纯化

梁宏伟1,冯波1,2,朱雯宇1,王建舫1,张涛1,穆祥1*   

  1. (1.北京农学院动物科学技术学院/兽医学(中医药)北京市重点实验室,北京 102206;2.中国农业大学动物医学院,北京 100193)
  • 收稿日期:2016-06-15 出版日期:2016-10-23 发布日期:2016-10-23
  • 通讯作者: 穆祥(1960-),男,江苏启东人,教授,硕士,主要从事中兽医药及疾病防控研究
  • 作者简介:梁宏伟(1990-),女,河北承德人,硕士生,主要从事中兽医药及疾病防控方面研究,E-mail: 1581926010@ qq. com
  • 基金资助:

    国家自然科学基金(31272144)

Cultivation and Purification of Rat Pulmonary Microvascular Endothelial Cells in vitro

LIANG Hong-wei1,FENG Bo1,2,ZHU Wen-yu1,WANG Jian-fang1,ZHANG Tao1,MU Xiang1*   

  1. (1.Beijing Key Laboratory of Traditional Chinese Veterinary Medicine,Beijing Universisty of Agriculture,Beijing 102206,China;2.Veterinary Medicine in China Agricultural University,Beijing 100193,China)
  • Received:2016-06-15 Online:2016-10-23 Published:2016-10-23

摘要:

旨在建立一种简单易行、获得细胞纯度较高的体外分离、培养大鼠肺微血管内皮细胞的方法。取5~7日龄SD大鼠分离外周肺组织,组织植块法获得原代大鼠肺微血管内皮细胞,37 ℃、5% CO2 培养箱中传代培养,采用免疫磁珠法对其进行分离纯化,并对分离纯化后的细胞进行免疫荧光及流式细胞鉴定,通过MTT比色分析法准确、安全、可靠地检测纯化后传代肺微血管内皮细胞的增殖情况。结果显示:倒置显微镜下观察单个细胞呈短梭形或多角形,汇合后呈铺路石样,单层贴壁生长,细胞分离纯化后经免疫荧光检测CD31呈阳性,流式细胞仪检测淋巴管内皮细胞表面特有标记VEGFR-3呈阴性(P=0.1,且P<0.5),且复苏后经MTT测得传代细胞的增殖情况良好。成功建立了一种分离高纯度大鼠肺微血管内皮细胞的体外培养方法。

Abstract:

This study aims at establishing a simple method of obtaining the high-purity rat pulmonary microvascular endothelial cells isolated and cultured in vitro.Peripheral lung tissues were separated from 5 to 7 days of SD rat under sterile condition.Rat pulmonary microvascular endothelial cells was acquired by taking the tissue graft block method,digested with trypsin and then maintained at 37 ℃ in a 5% CO2 humidified atmosphere.The cells were purificated using the method of immune magnetic beads,subsequently identified by the immunofluorescence and flow cytometry,and then determined by MTT colorimetric analysis to detect the original generation of pulmonary endothelial cell growth curve.Rat lung microvascular endothelial cells was successfully obtained by taking the tissue graft block method and individual cells under inverted microscope showed short fusiform or polygon and a typical paying stone appearance with single-layer adherent growth after confluence.The cells were strongly positive for CD31 factor and negative(P=0.1,and P<0.5) for lymphatic endothelial cell specific surface marker VEGFR-3 detected by immunofluorescence staining and flow cytometry respectively.In our study,a method of higher purity of rat lung microvascular endothelial cells culture in vitro was successfully established.

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