摘要
目的 为更有效地激发对乙型肝炎表面抗原体液免疫和细胞免疫反应,更有效地防治乙型肝炎。方法 以重组酵母乙型肝炎疫苗和HBs-DNA疫苗作为初次免疫,再分别以DNA疫苗和重组酵母乙型肝炎疫苗交互加强免疫,于加强免疫后2周以ELISA检测抗-HBs,乳酸脱氢酶法检测细胞毒性T淋巴细胞(CTL)反应。 结果 先用重组酵母乙型肝炎疫苗免疫,再用HBs-DNA疫苗加强时抗体A值为0.38,效靶比为100:1时,CTL值为36％;先用HBs-DNA疫苗免疫,再用重组酵母乙肝疫苗免疫时抗体A值为0.32,CTL值为27％。两次重组酵母乙型肝炎疫苗免疫后的抗体A值为0.48,CTL反应值为1.5％;两次HBs-DNA疫苗免疫后A值为0.24,CTL反应值为68％。 结论 乙型肝炎表面抗原能增强DNA疫苗的抗体反应,DNA疫苗能增强重组酵母乙型肝炎疫苗的CTL反应,两者交互免疫可得到更好的免疫效果。
Objective To evoke more effective humoral and cell-mediated immunization against hepatitis B virus (HBV) infection. Methods HBsAg-primed mice were boosted with HBs-DNA vaccine, and HBs-DNA-primed mice were boosted with HBsAg vaccine. Anti-HBs level was assayed by ELISA and cytotoxic T lymphocyte (CTL) response was tested by lactic acid dehydrogenase (LDH) releasing method two weeks after the boosted immunization. Results Anti-HBs level and CTL responsive rate at the effector/target cell ratio of 100:1 were 0.38 and 36% in HBsAg/HBs-DNA vaccination group, 0.32 and 27% in HBs-DNA/HBsAg vaccination group, 0.48 and 1.5% in HBsAg/HBsAg vaccination group, 0.24 and 68% in HBs-DNA/HBs-DNA vaccination group, respectively. Conclusions Priming with HBs-DNA vaccine followed by boosting with conventional HBsAg vaccine results in greater antibody response (F = 21.19, P < 0.05), and CTL response after HBsAg vaccination can be improved by boosting with HBs-DNA vaccine (F - 165.59, P < 0.05). It brings to better efficacy by combining HBsAg vaccine with HBs-DNA vaccine.
出处
《中华肝脏病杂志》
CAS
CSCD
2003年第4期212-214,共3页
Chinese Journal of Hepatology
基金
国家自然科学基金(30100158)
第26届中国博士后基金(1999-17)
关键词
乙型肝炎疫苗
DNA疫苗
免疫
Hepatitis B virus vaccine
DNA vaccine
Immunization
