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Protection of mice against rotavirus challenge following intradermal DNA immunization by Biojector needle-free injection

机译:通过Biojector无针注射进行皮内DNA免疫后,小鼠抗轮状病毒攻击

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Mucosal administration (intranasal or oral) of a VP6 rotavirus vaccine to mice consistently elicits high levels of protection after rotavirus challenge (93->99% reductions in fecal rotavirus shedding) but only when co-administered with an effective adjuvant such as LT(R192G). Here, we showed that Biojector needle-free injection of VP6-encoded plasmids also induced protection (85-93%) when they were co-administrated with LT(R192G)-encoded plasmids. A reduction in the amount of VP6 plasmid from 50 to 10 microg reduced protection from 93 to 70%, but the immunized mice remained significantly (P<0.05) protected. Intramuscular needle injection of VP6/LT(R192G)-plasmids also induced significant protection (66%).
机译:VP6轮状病毒疫苗对小鼠的粘膜给药(鼻内或口服)在轮状病毒攻击后始终引起高水平的保护(粪便轮状病毒脱落减少93-> 99%),但仅在与有效佐剂(如LT(R192G)共同给药时) )。在这里,我们表明,与LT(R192G)编码的质粒共同给药时,VP6编码的质粒的Biojector无针注射也可诱导保护作用(85-93%)。 VP6质粒的数量从50微克减少到10微克,保护作用从93%降低到70%,但是免疫的小鼠仍然受到显着保护(P <0.05)。肌内注射VP6 / LT(R192G)-质粒也能产生明显的保护作用(66%)。

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