Objective To detect the expression of tuberculosis Ag85A-CD226 DNA vaccine in splenocyte and intestine of mouse by intragastric administration. Methods E. coli DH5α was transformed by pcDNA3. 1-Ag85A-CD226,pcDNA3. 1-Ag85A or pcDNA3. 1-CD226 plasmid. The liposome encapsulated recombinant DNA vaccine was prepared after extraction and amplification of the recombinant plasmid with endotoxin free kit. The C57BL /6 mice were inoculated by intragastric administration. The mice were randomly divided into Ag85A-CD22...