Animal Husbandry and Feed Science ›› 2022, Vol. 43 ›› Issue (4): 19-24.doi: 10.12160/j.issn.1672-5190.2022.04.004

• Basic Research • Previous Articles     Next Articles

Research Progress of CpG-ODN as Immunological Tolerance Inducer

LI Xiao-qi,LI Lin,JIA Shu-ping,WANG Feng-wu   

  1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
  • Received:2022-04-01 Online:2022-07-30 Published:2022-07-21

Abstract:

Immunoglobulin E (IgE) - mediated allergic disorders can be treated with allergen-specific immunotherapy (ASIT). Adjuvants and immunomodulators were utilized by researchers to improve the efficacy and safety of ASIT. CpG-oligodeoxynucleotide (CpG-ODN) is one of the best immunomodulators for the treatment of allergic disorders due to its ability to promote immunological tolerance. The doses of CpG-ODN were found to be critical for promoting immune regulation through the recruitment of plasmacytoid dendritic cells (pDCs). Low doses of CpG-ODN elicited inflammatory responses while high doses of CpG-ODN triggered immunological tolerance. CpG-ODN has potential for the prevention and treatment of IgE-mediated allergic disorders. This paper reviews the research progress of the types of CpG-ODN, their effects on immune cells, and the mechanism of CpG-ODN as ASIT immunological tolerance inducer, in hoping to serve as references for related researches.

Key words: allergen-specific immunotherapy, CpG-oligodeoxynucleotide, allergy, immunological tolerance

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