改良人原代脐静脉内皮细胞的分离及鉴定Improved Isolation and Identification of Primary Vascular Endothelial Cells from Human Umbilical Veins
崔丽丽,余芳芳,左丽
CUI Lili,YU Fangfang,ZUO Li
摘要(Abstract):
目的:优化人脐静脉内皮细胞(HUVECs)的分离及培养方法。方法:在传统HUVECs分离的基础上进行改进,通过Ⅰ型胶原酶消化分离HUVECs,利用倒置显微镜观察其生长状况、免疫组织化学方法及流式细胞术检测所培养细胞的纯度。结果:改良实验步骤和精简操作后,HUVECs分离不受影响,分离的HUVECs在体外2~4 d可长成单层,倒置显微镜下可见细胞呈"鹅卵石"状排列,Ⅷ因子免疫组化实验阳性,流式细胞术检测细胞纯度达99.37%。结论:用胶原酶消化法分离HUVECs具有培养周期短,所获得的HUVECs纯度较高的优点,有利于体外血管内皮细胞模型的建立。
Objective: To optimize the isolation and nurturing method of the human umbilical vein endothelial cell( HUVECs),to conclude identification methods of HUVEC. Method: Improving the traditional isolation of HUVECs,isolating HUVECs by type I collagenase. Then the growth of cells was observed under an inverted microscope,the cultured cells were identified by immunocytochemistry,and the purity of cells was identified by flow cytometry. Result: Improved experimental procedures and simplified the operation,the isolation of HUVECs was not affected,the primary HUVECs began to grow into a single layer about 2 ~ 4 days in vitro,arrayed like " cobblestone" shape under the inverted microscope. Ⅷ factor in the HUVECs showed positive reaction by immunocytochemistry,the purity was99. 37% by flow cytometry. Conclusions: Collagenase procedure is convenient and high purified HUVECs can be acquired. It can successfully establish the model for endothelial cells.
关键词(KeyWords):
内皮,血管;脐静脉;免疫组织化学;细胞培养;细胞分离;流式细胞术
endothelium,vascular;umbilical veins;immunocytochemistry;cell culture;cell separation;flow cytometry
基金项目(Foundation): 国家自然科学基金(31260224)
作者(Author):
崔丽丽,余芳芳,左丽
CUI Lili,YU Fangfang,ZUO Li
DOI: 10.19367/j.cnki.1000-2707.2015.01.006
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