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端粒酶永生化的人单克隆神经前体细胞系诱导表达多巴胺D2受体
引用本文:扈启宽,林昌盛,白云,白洁,何其华,沈丽,李凌松. 端粒酶永生化的人单克隆神经前体细胞系诱导表达多巴胺D2受体[J]. 北京大学学报(医学版), 2003, 35(3): 271-273
作者姓名:扈启宽  林昌盛  白云  白洁  何其华  沈丽  李凌松
作者单位:1. 北京大学医学部干细胞中心,北京,100083
2. 广州暨南大学生物工程研究所
基金项目:国家重点基础研究发展计划(973计划);2001CB510100;
摘    要:目的:检测人神经前体细胞系HNG1210-E能否诱导表达多巴胺D2受体mRNA和受体蛋白,表达的受体是否有生理功能.方法:细胞因子诱导分化,RT-PCR和免疫荧光染色检测D2的表达; Fluo-3 测定多巴胺刺激产生的胞浆Ca2+.结果:RT-PCR显示D2 mRNA诱导后阳性,免疫荧光结果显示诱导后D2受体蛋白在细胞膜表面阳性,Fluo3法测定胞浆Ca2+,结果显示诱导后的细胞对5 mmol*L-1多巴胺递质反应使胞浆Ca2+快速上升.结论:从mRNA、蛋白和生理功能3个层次均证明HNG1210-E细胞系诱导后表达D2.

关 键 词:神经前体细胞 端粒酶永生化 多巴胺D2受体 细胞分化
文章编号:1671-167X(2003)03-0271-03

Induced expression of dopamine D2 receptor in human neuro-progenitor cell line HNG1210-E
Qikuan Hu,Changsheng Lin,Yun Bai,Jie Bai,Qihua He,Li Shen,Lingsong Li. Induced expression of dopamine D2 receptor in human neuro-progenitor cell line HNG1210-E[J]. Journal of Peking University. Health sciences, 2003, 35(3): 271-273
Authors:Qikuan Hu  Changsheng Lin  Yun Bai  Jie Bai  Qihua He  Li Shen  Lingsong Li
Affiliation:Peking University Stem Cell Research Center, Beijing 100083, China.
Abstract:OBJECTIVE: To investigate whether the dopamine receptor D2 can express or can be induced to express in HNG1210-E, a monoclonal, telomerase-immortalized, human neural progenitor cell line. METHODS: By means of RT-PCR, immuno-fluorescent staining, and fluo3 Ca2+ imaging to the expression of D2 mRNA and protein as well as the reaction to dopamine were demonstrated. RESULTS: HNG1210-E cells could be induced to express D2 mRNA and its proteins. The induced cells also reacted to dopamine (5 mmol.L-1), which caused rapid rising of cytoplasm Ca2+. CONCLUSION: HNG1210-E cells can be induced to express D2 mRNA and functional proteins.
Keywords:Neural progenitor cell  Receptor   dopamine D 2  Cell differentiation
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