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Published on: September 2, 2022
Flagellin as an adjuvant: cellular mechanisms and potential
1Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. smizel@wfubmc.edu
Journal of Immunology (Baltimore, Md. : 1950)
|November 5, 2010
Summary
Flagellin powerfully stimulates immune cells and acts as an effective vaccine adjuvant. Its unique properties enable the creation of novel flagellin-antigen fusion vaccines, showing promise in preclinical studies.
Area of Science:
- Immunology
- Vaccinology
Background:
- Flagellin is a key component of bacterial flagella and a potent activator of innate and adaptive immunity.
- It activates Toll-like receptor 5 (TLR5) on various immune cells, including antigen-presenting cells.
Purpose of the Study:
- To review the current understanding of flagellin's adjuvant properties.
- To highlight flagellin's role in immune cell activation and vaccine development.
Main Methods:
- Review of existing scientific literature on flagellin and its immunological effects.
- Analysis of studies investigating flagellin-antigen fusion proteins as vaccines.
Main Results:
- Flagellin effectively promotes cytokine production and lymphocyte recruitment.
- Flagellin-based fusion proteins have demonstrated significant efficacy in animal models.
- Flagellin activates specific immune cells (TLR5(+)CD11c(+)) distinctly from antigen recognition.
Conclusions:
- Flagellin is a versatile molecule with significant potential as a vaccine adjuvant.
- Further research into flagellin-based vaccines is warranted for future therapeutic applications.
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