【摘要】 从小鼠Ｃ５７ＢＬ／６Ｊ股骨分离得到骨髓单核细胞（ｂｏｎｅｍａｒｒｏｗｍｏｎｏｎｕｃｌｅａｒｃｅｌｌｓ，ＢＭＭＣ），并在体外建立了ＢＭＭＣ细胞培养体系。将携带有人β－珠蛋白基因及其增强子的逆转录病毒载体（Ｎ２ＡβＥ３６）经ＤＮＡ磷酸钙共沉淀转染单向性包装细胞系（ψ－２）收集抗Ｇ４１８阳性ψ－２细胞克隆的病毒上清，感染体外培养的ＢＭＭＣ，同时加入白介素－３（Ｉｎｔｅｒｌｅｕｋｉｎ－３，ＩＬ－３）、白介素－６（Ｉｎｔｅｒｌｅｕｋｉｎ－６，ＩＬ－６）、红细胞生成素（ｅｒｙｔｈｒｏｐｏｉｅｔｉｎ，Ｅｐｏ）等造血调节因子以促进造血细胞的增殖及提高基因转移的效率。经Ｓｏｕｔｈｅｒｎｂｌｏｔ和Ｎｏｒｔｈｅｒｎ－ｂｌｏｔ分析证实在小鼠ＢＭＭＣ中具有β－珠蛋白基因的整合与表达。更多还原

【Abstract】 Bone marrow mononuclear cells(BMMC)were obtained by flushing the femoral shafts of C57BL/6J mice and seperated by Ficoll.BMMCs were cultured in IMDM to establish the long-term culture. The vector(N2 AβE36)constructed with human β-globin gene and its enhancer was transfered into ecototropic packaging cell line(ψ-2)by calcium phosphate precipitation procedure. After selected with G418,the virus supertant of ψ-2 positive cell clone was collected and then infected BMMC.IL-3,IL-6,Epo etc,hematopoietic growth factors were added at the same time to stimulate the proliferation of BMMC and enhanc the efficiency of gene transfer.Southern blot analysis and Northern-blot analysis showed that human β-globin gene was integrated and expressed in BMMC.更多还原