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Chinese Journal of Antituberculosis ›› 2023, Vol. 45 ›› Issue (7): 693-698.doi: 10.19982/j.issn.1000-6621.20230060

• Review Articles • Previous Articles     Next Articles

Recent advances in the source and biological function of bacterial DNA in extracellular vesicles

Liu Dingyi, Sun Hong, Sheng Gang, Sun Zhaogang()   

  1. Transformation Research Room, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
  • Received:2023-03-02 Online:2023-07-10 Published:2023-06-29
  • Contact: Sun Zhaogang, Email: sunzg75@163.com
  • Supported by:
    National Natural Science Foundation of China(81871691);National Natural Science Foundation of China(82272347);Key Projects of the Capital Health Development Research Project(2022-1G-2161)

Abstract:

Cells can release their own substances or metabolites outside the cell through extracellular vesicles, which is also known as EV (exosomes). As research progressed, it is discovered that bacteria can also produce exosomes that encapsulate many macromolecules (including proteins, lipids, DNA and RNA) and that bacterial exosomes are closely linked to a variety of biological activities, including bacterial survival and development, as well as bacterial-mediated intra- and inter-species interactions. Researchers have also found that both Gram-negative and Gram-positive bacteria can produce exosomes containing DNA, and that bacterial exosomes DNA can perform biological functions such as mediating horizontal gene transfer, assisting in biofilm formation, and stimulating immunomodulatory mechanisms. In this paper, the production mode and biological functions of bacterial extracellular DNA have been elucidated, so that readers can have deeper understanding of bacterial exosomes DNA and promote further research and development of bacterial exosome DNA.

Key words: Extracellular vesicles, Deoxyribonucleotides, Gram-negative bacteria, Gram-positive bacteria, Consensus development conferences as topic

CLC Number: