Review
Research progress on immunomodulatory effects and mechanisms of bacterial flagellin
Xiao Zhenming, Zhao Chao, Wu Yonglin, Xu Jun
Published 2021-05-31
Cite as Chin J Microbiol Immunol, 2021, 41(5): 395-399. DOI: 10.3760/cma.j.cn112309-20200420-00213
Abstract
Flagellum is a slender and wavy protein-attached filament on the surface of certain bacterial cells. It not only plays an important role in the movement and pathogenic ability of bacteria, but also participates in a variety of host immune regulation. Flagellin is a structural protein that forms the main part of flagellar filaments and can be recognized by TLR5 and other receptors in the host cell to induce the body′s immune response. At present, flagellin is widely used in the research of new immune adjuvants due to its immune activation, and its inflammation inhibitory effect also has good prospects against immune pathological damage. In this review, we summarized and analyzed the recent progress on the basic structure and function of flagellin, the host recognition mechanism, and its role in regulating the host immune system.
Key words:
Bacterium; Flagellin; TLR5; Immunomodulation; Inhibition of inflammation
Contributor Information
Xiao Zhenming
Key Laboratory of Molecular Virology, Ministry of Education/National Health Commission/Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
Zhao Chao
Key Laboratory of Molecular Virology, Ministry of Education/National Health Commission/Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
National Clinical Research Center on Aging and Medicine, Huashan Hospital, Shanghai 200040, China
Wu Yonglin
Key Laboratory of Molecular Virology, Ministry of Education/National Health Commission/Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
Xu Jun
Department of Orthopaedic Surgery, Shanghai Sixth People′s Hospital, Shanghai Jiaotong University, Shanghai 200233, China