Methods An attenuated live AraA - autotrophic mutant of Salmonella typhimurium (SL3261) was used as a carrier of eukaryotic expression vectors (EGFPN1, pCMVhIL 12, pCMVhGM CSF) and was administered orally to BALB/c and C57BL/6 mice.

• 方法 通过电转化法将真核表达载体pCMVhIL 12、pCMVhGM CSF、EGFPN1导入减毒鼠伤寒沙门菌SL32 6 1中 ,经由胃管喂给BALB c和C5 7BL 6小鼠。