摘要
目的：定量分析基因表达产物人生长激素（ｈＧＨ），并确定基因表达期限。方法：我们利用磷酸钙介导的方法将重组ｈＧＨ基因导入培养的人胚皮肤成纤维细胞内，之后用Ｎｏｒｔｈｅｒｎ杂交证实转染细胞能够表达ｈＧＨ基因。在此基础上又采用放免法对ｈＧＨ进行了定量测定。结果：从细胞转染的第１２天算起，ｈＧＨ水平逐渐提高，到２３天进入一稳定表达阶段，到９０天仍在进行稳定表达。此时每毫升培养液中的细胞数为１．３×１０６个，ｈＧＨ含量为７９．３２±３．２６６３ｎｇ。结论：转染细胞至少能持续表达ｈＧＨ９０天。
Objective: To quantitative analyze the gene expression producthGH, and determine expression time limit. Methods: we use Northern blotting to prove the human fetal skin fibroblasts (hSF), which were transfected with recombinant hGH gene by calcium phosphate transfection system, could express the foreign hGH gene. On the basis of above researches, we adopted radioimmunoassay (RIA) for quantitative analyze of hGH. Results: hGH content gradually increased on the 12th day after transfection. The gene expression began to enter the steady expression stage on the 23rd day, and still expressed sustainedly hGH on the 90th day. During the stage, there were 13×106 hSF in a milliliter medium, hGH content was 7932±32663ng/ml. Conclusions: The transfected hSF can express hGH sustaintedly for at least 90 days.
出处
《中华神经外科杂志》
CSCD
北大核心
1998年第2期75-77,共3页
Chinese Journal of Neurosurgery
基金
国家自然科学基金
关键词
HGH
基因转染
基因治疗
生长激素
侏儒症
Recombinant hGH gene Gene transfection Gene expression Gene therapy
