Insights into dendritic cell maturation during infection with application of advanced imaging techniques

Dendritic cells (DCs) are crucial for the initiation and regulation of adaptive immune responses. When encountering immune stimulus such as bacterial and viral infection, parasite invasion and dead cell debris, DCs capture antigens, mature, acquire immunostimulatory activity and transmit the immune...

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Bibliographic Details
Published in:Frontiers in cellular and infection microbiology 2023-03, Vol.13, p.1140765-1140765
Main Authors: Xiao, Qi, Xia, Yuxian
Format: Article
Language:English
Subjects:
Antigen Presentation
CD8-Positive T-Lymphocytes
Cell Differentiation
Cellular and Infection Microbiology
Cytokines - metabolism
DC-T cell interaction
Dendritic Cells
dendritic cells (DCs)
imaging
maturation
migration
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Summary:Dendritic cells (DCs) are crucial for the initiation and regulation of adaptive immune responses. When encountering immune stimulus such as bacterial and viral infection, parasite invasion and dead cell debris, DCs capture antigens, mature, acquire immunostimulatory activity and transmit the immune information to naïve T cells. Then activated cytotoxic CD8 T cells directly kill the infected cells, while CD4 T helper cells release cytokines to aid the activity of other immune cells, and help B cells produce antibodies. Thus, detailed insights into the DC maturation process are necessary for us to understand the working principle of immune system, and develop new medical treatments for infection, cancer and autoimmune disease. This review summarizes the DC maturation process, including environment sensing and antigen sampling by resting DCs, antigen processing and presentation on the cell surface, DC migration, DC-T cell interaction and T cell activation. Application of advanced imaging modalities allows visualization of subcellular and molecular processes in a super-high resolution. The spatiotemporal tracking of DCs position and migration reveals dynamics of DC behavior during infection, shedding novel lights on DC biology.
ISSN:2235-2988
2235-2988
DOI:10.3389/fcimb.2023.1140765