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人脐静脉内皮细胞的分离培养和鉴定及酪氨酸激酶受体-2在其中的表达

Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology(2009)

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Abstract
目的分离和培养人脐静脉内皮细胞(HUVECs),对其进行鉴定,并探讨酪氨酸激酶受体-2(Tie-2)基因在HUVECs中的表达情况。方法用胰蛋白酶消化、分离HUVECs并对其进行培养,根据细胞生长特点、形态特征和Ⅷ因子免疫荧光组化技术对细胞进行鉴定。分别采用逆转录-聚合酶链反应(RT-PCR)和SABC免疫细胞化学染色对HUVECs中Tie-2mRNA和蛋白表达情况进行检测。结果原代培养的HUVECs约于24h完全贴壁,4~5d后融合成单层铺路石样结构。Ⅷ因子免疫荧光组化法证实细胞是HUVECs。RT-PCR检测到HUVECs中Tie-2mRNA条带明显,SABC免疫细胞组化法检测到Tie-2蛋白在HUVECs胞浆、核膜中呈强阳性表达,阳性率为85%以上。结论胰蛋白酶灌流消化法可获得高纯度的HUVECs,Tie-2在HUVECs中呈强阳性表达。
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Key words
tyrosine kinase-2 with immunoglobulin-like and epidermal growth factor homology domains,tumor,human umbilical vein endothelial cells
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