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CEA迷你基因串联体肿瘤疫苗的构建 被引量:3

Construction of three tandem repeats of minigene DNA vaccine derived from carcinoembryonic antigen gene
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摘要 目的:构建人癌胚抗原(CEA)的迷你基因串联体肿瘤疫苗。方法:通过PCR从人基因组中得到一段来源于CEA的DNA序列,其中包含两个编码辅助性T细胞(HTL)表位的迷你基因,插入pGEM-T easy载体后测序,再将目的基因以同尾酶连接的方式顺次定向亚克隆到真核表达载体pcDNA3.0中,得到三串联体,以PCR和酶切方法鉴定构建的重组真核表达质粒pcDNA3.0-triCEA625-667。结果:PCR和酶切结果表明,获得的目的基因与所选的基因片段CEA625-667中包含的碱基数量吻合,且带有正确的酶切位点。测序结果与GenBank登记完全相同。构建的重组真核表达质粒中含有正确编码的经同尾酶连接的目的基因片段三倍体。结论:成功地构建了含有CEA625-667基因三串联体的DNA疫苗。
出处 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2007年第2期377-380,共4页 Journal of Jilin University:Medicine Edition
基金 吉林省科技厅重点项目资助课题(20020403 20040401-5 20050402-3) 长春市科技计划项目资助课题(2004218)
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