Journal
VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
Volume 158, Issue 1-2, Pages 98-104Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.vetimm.2013.05.006
Keywords
Lycium barbarum polysaccharides; Follicular helper T cells; Adjuvant
Categories
Funding
- National Natural Science Foundations of China [31001064, 81260678]
- Natural Science Foundations of Ningxia, China [NZ11178]
- department education project in Ningxia, China [NGY2012065]
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Lycium barbarum polysaccharides (LBP) have been shown to play a variety of immunemodulatory functions which include activation of T and B cells. Follicular helper T (Tfh) cells are now recognized as a subset of helper T cells which regulate the multiple stages of B cell maturation and function. In our current study, we found that LBP were able to activate CXCR5+PD-1+ Tfh cells and induce IL-21 secretion. At the same time LBP also promoted the formation of germinal centers (GC) and production of GL-7+B220+GC B cells. LBP as an adjuvant could increase generation of rAd5VP1-induced Tfh cells. Our results indicate that LBP might enhance T cell-dependent Ab responses by acting as an adjuvant for the generation of Tfh cells. Future vaccine designs might therefore be targeted to induce strong antigen-specific Tfh responses in order to boost its protective effects. (C) 2013 Elsevier B.V. All rights reserved.
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