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Immunization with live recombinant Salmonella typhimurium aroA producing F1 antigen protects against plague.

机译:产活重组鼠伤寒沙门氏菌aroA产生F1抗原的免疫可预防鼠疫。

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An attenuated Salmonella typhimurium strain which expressed the F1 capsular antigen of Yersinia pestis was constructed by transformation of S. typhimurium SL3261 with plasmid pFGAL2a, a derivative of pUC18 which contained the caf1 gene without the leader sequence. The recombinant was used to vaccinate mice intragastrically and intravenously. The immunity induced was able to protect mice against challenge with a virulent strain of plague. Protection correlated with the induction of high titers of immunoglobulin G in serum samples and a specific T-cell response.
机译:表达鼠疫耶尔森氏菌F1荚膜抗原的减毒鼠伤寒沙门氏菌菌株是通过用质粒pFGAL2a转化鼠伤寒沙门氏菌SL3261构建的,该质粒是pUC18的衍生物,其中含有没有前导序列的caf1基因。该重组体用于在胃内和静脉内给小鼠接种疫苗。诱导的免疫力能够保护小鼠免受鼠疫的毒力攻击。保护与血清样品中高滴度免疫球蛋白G的诱导和特异性T细胞反应有关。

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