pVAX1/IL-18对日本血吸虫DNA疫苗效果影响的初步研究

Chinese Journal of Zoonoses(2018)

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Abstract
目的 探讨pVAX1/IL-18对日本血吸虫pVAX1/SjRPS4·CB疫苗免疫保护效果的影响.方法 将BALB/c小鼠随机分为NS组、pVAX1空质粒组、pVAX1/IL-18组、pVAX1/SjRPS4·CB组、pVAX1/SjRPS4·CB+ pVAX1/IL-18组,每组12只.每组小鼠在左后腿股四头肌注射相对应质粒100μg或者等剂量生理盐水,隔2W加强1次,共注射3次.末次免疫后3周腹部贴片感染小鼠.感染后8周剖杀小鼠,用ELISA法检测小鼠特异性抗体IgG,计算减虫率、肝组织减卵率、肠减卵率、每雌减卵率.结果 pVAX1/SjRPS4·CB、pVAX1/IL-18联合免疫小鼠后,IgG滴度为1∶12 800,高于单独免疫组;减虫率、肝组织减卵率、肠减卵率、每雌减卵率与其他组相比差异均有统计学意义.结论 pVAX1/ID18对日本血吸虫DNA疫苗具有明显增效作用.
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