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DNA-based immunization against hepatitis B surface antigen carrying preS epitopes

机译:针对携带preS表位的乙肝表面抗原的基于DNA的免疫

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摘要

Three plasmid expression vectors containing modified hepatitis B surface antigen (HBsAg)carrying preS epitopes were constructed. Transient expression after in vitro transfec- tion in COS-M6 cells showed that under the transcriptional control of human cytomegalovirus (CMV)immediate early promoter, fusion genes expressed the modified HBV envelope proteins which were efficiently secreted into culture medium and presented HBsAg, preS1 and preS2 antigenicity.
机译:构建了三个带有修饰的携带preS表位的乙肝表面抗原(HBsAg)的质粒表达载体。在COS-M6细胞中进行体外转化后的瞬时表达表明,在人类巨细胞病毒(CMV)介导的早期启动子的转录控制下,融合基因表达了修饰的HBV包膜蛋白,这些蛋白有效地分泌到培养基中并呈递HBsAg,preS1和preS2抗原性。

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