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Chinese Journal of Antituberculosis ›› 2022, Vol. 44 ›› Issue (1): 95-101.doi: 10.19982/j.issn.1000-6621.20210593

• Review Articles • Previous Articles     Next Articles

A review of researches on heparin-binding adhesions of Mycobacteria

CHEN Yu-lan, LIU Yi-duo, ZHOU Xiang-mei()   

  1. College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
  • Received:2021-10-09 Online:2022-01-10 Published:2021-12-29
  • Contact: ZHOU Xiang-mei E-mail:zhouxm@cau.edu.cn
  • Supported by:
    National Natural Science Foundation of China(31873005)

Abstract:

Tuberculosis is a worldwide zoonosis caused by mycobacteria. Heparin-binding adhesin (HBHA) is a protein produced by mycobacteria, with which the pathogenic strains can attach to epithelium cells and be disseminated to extra-pulmonary organs from lungs. The C terminal domain of it can induce Th1 responses of the body efficiently and a certain level of mucosal immune responses, suggesting its potential for developing a vaccine. Furthermore, the HBHA-specific immune responses in active tuberculosis patients differentiate from that in latent tuberculosis patients which indicates that it may work as a diagnostic antigen. At cellular level, HBHA can intrude into macrophages through complement receptors and turn them to M1 state while escaping from autophagy and triggering mitocondrial damage and endoplasmic reticulum stress. All of these provides more explanations for pathogenesis of tuberculosis. The constantly updated understanding of the interactions between HBHA and the host will provide inspirations for the application study of exploiting its immunogenic potential.

Key words: Mycobacterium, Heparin-binding hemagglutinin adhesins, Antigen, Research

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