Methods Murine IL 12 cDNA was inserted into optimized HBcAg DNA vaccine pST HBc. The resultant recombinant expression plasmid pST HBc/IL12 was transfected into COS7 cells and its expressed product was detected by ELISA.

• 方法 将小鼠IL 12基因插入结构优化的DNA疫苗pST HBc,构成pST HBc/IL12 ,将pST HBc/IL12转染COS7细胞 ,ELISA检测培养上清中的HBcAg和小鼠IL 12。