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Yersinia pseudotuberculosis Exploits CD209 Receptors for Promoting Host Dissemination and Infection

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单位: [1]Huazhong Univ Sci & Technol,Tongji Hosp,Tongji Med Coll,Dept Clin Immunol,Wuhan,Hubei,Peoples R China [2]Yonsei Univ, Coll Med, Severance Biomed Sci Inst, Lab Immunol,Brain Korea PLUS Project Med Sci 21, Seoul, South Korea [3]Shihezi Univ, Sch Med, Dept Pathogen Biol & Immunol, Shihezi, Xinjiang, Peoples R China [4]Univ Zambia Univ Coll London Med Sch Zambia, Dept Paediat & Child Hlth, Lusaka, Zambia [5]Univ Illinois, Coll Med Rockford, Dept Biomed Sci, Rockford, IL USA [6]Chinese Acad Sci, Wuhan Inst Virol, Key Lab Special Pathogens & Biosafety, Wuhan, Hubei, Peoples R China [7]Natl Inst Communicable Dis Control & Prevent, Dept Diarrheal Dis, Beijing, Peoples R China [8]Beijing Inst Microbiol & Epidemiol, State Key Lab Pathogen & Biosecur, Beijing, Peoples R China [9]Chinese Acad Sci, Inst Biophys, Key Lab Infect & Immun, Beijing, Peoples R China [10]Univ Texas Southwestern Med Ctr Dallas, Dept Pathol, Dallas, TX USA [11]Ctr Dis Control & Prevent, Atlanta, GA USA [12]Univ Helsinki, Dept Bacteriol & Immunol, Helsinki, Finland
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关键词: Yersinia pseudotuberculosis dendritic cells DCs DC-SIGN CD209a SIGN-R1 CD209b lipopolysaccharide core LPS core dissemination

摘要:
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.

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出版当年[2018]版:
大类 | 2 区 医学
小类 | 3 区 免疫学 3 区 传染病学
最新[2025]版:
大类 | 3 区 医学
小类 | 3 区 免疫学 3 区 传染病学
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出版当年[2017]版:
Q2 INFECTIOUS DISEASES Q2 IMMUNOLOGY
最新[2023]版:
Q2 INFECTIOUS DISEASES Q3 IMMUNOLOGY

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第一作者单位: [1]Huazhong Univ Sci & Technol,Tongji Hosp,Tongji Med Coll,Dept Clin Immunol,Wuhan,Hubei,Peoples R China
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