中文摘要：

目的:探讨利用白细胞介素5作为DNA疫苗佐剂增强黏膜免疫反应,提高卵透明带DNA避孕疫苗抗生育效能的可行性。方法:用pVAX1-m IL-5和卵透明带避孕疫苗pVAX1-pZP3α壳聚糖纳米微粒口服免疫雌性小鼠,共设3组,每组6只。A组单独用50μg pVAX1-pZP3α免疫;B组用疫苗加等量的pVAX1-m IL-5质粒为佐剂共免疫;C组为空白对照组。每组动物接受3次免疫(第0、3、6周)。采用ELISA法检测小鼠血清及阴道冲洗液中抗pZP3 IgA抗体。第10周雌雄交配,统计雌鼠怀孕情况;第16周取双侧卵巢作石蜡连续切片,光镜观察卵巢病理学变化。结果:B组全部小鼠血清抗体呈阳性反应,A组只有3只小鼠血清抗体呈阳性反应,且B组小鼠的抗体滴度水平均高于A组小鼠;抗生育率B组小鼠为100%,A组小鼠为50%,C组小鼠为0%,2检验分析结果表明各组间的差异有统计学意义,抗生育效能与交配时抗pZP3 IgA抗体的强度有关;卵巢切片的组织病理学观察结果表明,有抗生育效能的小鼠卵巢组织可观察到各级形态正常的卵泡,无淋巴细胞浸润,与对照组及无抗生育效能的小鼠卵巢结构无差异。结论:利用重组质粒pVAX1-m IL-5与卵...

英文摘要：

Aim: To evaluate the feasibility of enhancing mucosal immune response and improving antifertility effect,the mouse interleukin-5(IL-5) eukaryotic expression vector was used as adjuvant in zona pellucida DNA contraceptive vaccine.Methods:(Nanoparticles) were made by mixing the vaccine DNA pVAX1-pZP3α or recombinant pVAX1-mIL-5 with chitosan C390.In the immunization study,the mice were divided into three groups of six and immunized three times(on week 0,3,6) by oral;group A were immunized with pVAX1-pZP3α onl...