China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (5): 1895-1907.doi: 10.16431/j.cnki.1671-7236.2022.05.030

• Basic Veterinary Medicine • Previous Articles     Next Articles

Research Progress on the Mechanism of Polysaccharide as Adjuvant of Veterinary Vaccine

SHI Qian1,2, XU Xinfeng2, LI Xuewen2, XIAO Yuanyuan2, BAI Meihua2, ZHANG Fuchun1   

  1. 1. College of Life Science and Technology, Xinjiang University, Urumqi 830046, China;
    2. Urumqi Customs Technology Center, Urumqi 830063, China
  • Received:2021-11-05 Online:2022-05-05 Published:2022-04-29

Abstract: Polysaccharide can promote immune regulation with multi-target,multi-function and multi-factor effects,so it can be widely used as an adjuvant of veterinary vaccine.As vaccine adjuvant,polysaccharide can improve the index of immune organs such as spleen,thymus and bursa of Fabricius of immunized animals,enhance phagocytic activity and antigen presentation ability of macrophages,enhance the killing ability of NK cells and promote the maturation and differentiation of dendritic cells and enhance the ability of antigen uptake,affect the type and number of T cell subsets and change the type of Th1 and Th2 immune response,promote the proliferation of B lymphocytes and stimulate the production of cytokines and antibodies.As a ligand,polysaccharide mainly binds with receptor molecules such as Toll like receptor (TLR),mannose receptor (MR),C-type lectins receptor (CLR),scavenger receptor (SR) and so on to activate downstream signal pathways and exert the above immune activities.In this paper,the mechanism of polysaccharide as an adjuvant of veterinary vaccine was discussed,in order to provide a reference for the further development and application of polysaccharide.

Key words: polysaccharide; adjuvant; receptor; immunity

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