Yersinia pestis, a Gram-negative bacterium, is the etiologic agent of plague. A hallmark of Y. pestis infection is the organism's ability to rapidly disseminate through an animal host. Y. pestis expresses the outer membrane protein, Ail (Attachment invasion locus), which is associated with host invasion and serum resistance. However, whether Ail plays a role in host dissemination remains unclear. In this study, C57BL/6J mice were challenged with a defined Y. pestis strain, KimD27, or an isogenic ail-deleted mutant derived from KimD27 via metacarpal paw pad inoculation, nasal drops, orogastric infection, or tail vein injection to mimic bubonic, pneumonic, oral, or septicemic plague, respectively. Our results showed that ail-deleted Y. pestis KimD27 lost the ability to invade host cells, leading to failed host dissemination in the pneumonic and oral plague models but not in the bubonic or septicemic plague models, which do not require invasiveness. Therefore, this study demonstrated that whether Ail plays a role in Y. pestis pathogenesis depends on the infection route.
基金：
National Natural Science Foundation of China [NSFC 81271780, 81471915]; Tongji Hospital, Tongji Medical College
第一作者单位：[1]Huazhong Univ Sci & Technol,Tongji Hosp,Tongji Med Coll,Dept Clin Immunol,1095 Jiefang Ave,Wuhan 430030,Hubei,Peoples R China
通讯作者：
推荐引用方式(GB/T 7714)：
Zhang Yingmiao,Ying Xiaoling,He Yingxia,et al.Invasiveness of the Yersinia pestis ail protein contributes to host dissemination in pneumonic and oral plague[J].MICROBIAL PATHOGENESIS.2020,141:doi:10.1016/j.micpath.2020.103993.
APA：
Zhang, Yingmiao,Ying, Xiaoling,He, Yingxia,Jiang, Lingyu,Zhang, Song...&Chen, Tie.(2020).Invasiveness of the Yersinia pestis ail protein contributes to host dissemination in pneumonic and oral plague.MICROBIAL PATHOGENESIS,141,
MLA：
Zhang, Yingmiao,et al."Invasiveness of the Yersinia pestis ail protein contributes to host dissemination in pneumonic and oral plague".MICROBIAL PATHOGENESIS 141.(2020)
