Yersinia pseudotuberculosis is a Gram-negative enteropathogen and causes gastrointestinal infections. It disseminates from gut to mesenteric lymph nodes (MLNs), spleen, and liver of infected humans and animals. Although the molecular mechanisms for dissemination and infection are unclear, many Gram-negative enteropathogens presumably invade the small intestine via Peyer's patches to initiate dissemination. In this study, we demonstrate that Y. pseudotuberculosis utilizes its lipopolysaccharide (LPS) core to interact with CD209 receptors, leading to invasion of human dendritic cells (DCs) and murine macrophages. These Y. pseudotuberculosis CD209 interactions result in bacterial dissemination to MLNs, spleens, and livers of both wild-type and Peyer's patch-deficient mice. The blocking of the Y. pseudotuberculosis CD209 interactions by expression of 0-antigen and with oligosaccharides reduces infectivity. Based on the well-documented studies in which HIV-CD209 interaction leads to viral dissemination, we therefore propose an infection route for Y. pseudotuberculosis where this pathogen, after penetrating the intestinal mucosal membrane, hijacks the Y. pseudotuberculosis CD209 interaction antigen-presenting cells to reach their target destinations, MLNs, spleens, and livers.
基金:
PHSUnited States Department of Health & Human ServicesUnited States Public Health Service [R01AI 47736]; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [81271780, 81471915]; Tongji Hospital, Tongji Medical College; National Research Foundation of KoreaNational Research Foundation of Korea [NRF-2013R1A1A2058427, NRF-2014R1A4A1008625]; Yonsei University College of Medicine [6-2014-0062]; Rockefeller University; Tongji Hospital, HUST
第一作者单位:[1]Huazhong Univ Sci & Technol,Tongji Hosp,Tongji Med Coll,Dept Clin Immunol,Wuhan,Hubei,Peoples R China
通讯作者:
推荐引用方式(GB/T 7714):
He Ying-Xia,Ye Cheng-Lin,Zhang Pei,et al.Yersinia pseudotuberculosis Exploits CD209 Receptors for Promoting Host Dissemination and Infection[J].INFECTION AND IMMUNITY.2019,87(1):doi:10.1128/IAI.00654-18.
APA:
He,Ying-Xia,Ye,Cheng-Lin,Zhang,Pei,Li,Qiao,Park,Chae Gyu...&Chen,Tie.(2019).Yersinia pseudotuberculosis Exploits CD209 Receptors for Promoting Host Dissemination and Infection.INFECTION AND IMMUNITY,87,(1)
MLA:
He,Ying-Xia,et al."Yersinia pseudotuberculosis Exploits CD209 Receptors for Promoting Host Dissemination and Infection".INFECTION AND IMMUNITY 87..1(2019)