重组人抗狂犬病病毒单抗SO57、SOJB对不同狂犬病病毒毒株中和作用的研究

用不同的动物模型研究了具有专利的重组人抗狂犬病病毒单克隆抗体SO57、SOJB对不同狂犬病病毒株的中和作用,100IU/kg的SO57能100%保护被中国街毒株SBD攻击的中国仓鼠;首次用小鼠模型模拟人体被狂犬病病毒攻击后的治疗情况,在小鼠被CVS及中国街毒代表株攻击后,SO57与HRIG具有相近的对小鼠的暴露后保护作用;同时结果显示HRIG对SBD株攻击的保护率不能到达100%,仅使用疫苗是不能对感染病毒的小鼠百分之百的保护;SOJB与SO57 1:1联合使用未显示比SO57单独使用更好的保护效果。SO57极有可能在中国代替HRIG用于狂犬病病毒暴露后治疗。

Study on Neutralizing Potency to Different Rabies Virus Strains of the Recombinant Human Anti-rabies Virus McAbs SO57 and SOJB

Neutralizing potency of the patent recombinant anti-rabies virus McAbs, SO57 and SOJB,have been investigated broadly to different rabies virus strains in various animal models.100% Chinese Hamsters could be protected by 100IU/kg SO57 against China prevalent street rabies virus named SBD.We firstly established the mouse model to simulate human postexposure prophylaxis(PEP) by rabies virus and found SO57 had the same function with HRIG against CVS or three China typical street rabies viruses.However,HRIG could not 100% protect the mice challenged with SBD street virus,rabies virus vaccine alone could not save life from rabies virus infection.The cocktail containing SOJB and SO57(1:1) did not do better than SO57 alone.SO57 alone can be used for PEP and replaces HRIG in China.