Souza Menira, Costantini Veronica, Azevedo Marli S P, Saif Linda J
Food Animal Health Research Program, Ohio Agricultural Research and Development Center (OARDC), Department of Veterinary Preventive Medicine, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, United States.
Vaccine. 2007 Dec 5;25(50):8448-59. doi: 10.1016/j.vaccine.2007.09.040. Epub 2007 Oct 5.
We inoculated gnotobiotic pigs orally/intranasally with human norovirus GII.4 HS66 strain virus-like particles (VLP) and immunostimulating complexes (ISCOM) or mutant E. coli LT toxin (mLT, R192G) as mucosal adjuvants, then assessed intestinal and systemic antibody and cytokine responses and homologous protection. Both vaccines induced high rates of seroconversion (100%) and coproconversion (75-100%). The VLP+mLT vaccine induced Th1/Th2 serum cytokines and cytokine secreting cells, whereas the VLP+ISCOM vaccine induced Th2 biased responses with significantly elevated IgM, IgA and IgG antibody-secreting cells in intestine. Nevertheless, both vaccines induced increased protection rates against viral shedding and diarrhea (75-100%) compared to controls; however, only 57% of controls shed virus.
我们经口/鼻内给无菌猪接种人诺如病毒GII.4 HS66株病毒样颗粒（VLP）以及作为黏膜佐剂的免疫刺激复合物（ISCOM）或突变型大肠杆菌LT毒素（mLT，R192G），然后评估肠道和全身抗体及细胞因子反应以及同源保护作用。两种疫苗均诱导了高血清转化率（100%）和粪便转化率（75 - 100%）。VLP + mLT疫苗诱导了Th1/Th2血清细胞因子和细胞因子分泌细胞，而VLP + ISCOM疫苗诱导了偏向Th2的反应，肠道中IgM、IgA和IgG抗体分泌细胞显著升高。然而，与对照组相比，两种疫苗均诱导了针对病毒排泄和腹泻的保护率增加（75 - 100%）；不过，只有57%的对照组排出病毒。
