A decoy oligodeoxynucleotide favors the differentiation of CpG ODN-induced B cells into IL-10-producing Breg-like cells over plasma cells by restoring IRF4/IRF8 imbalance.

ABSTRACT: The imbalanced expression of interferon regulatory factor (IRF) 4 and IRF8 in activated B cells significantly influences their differentiation and promotes the development of immune-related diseases. Restoring abnormal B cells to appropriate responses may treat these diseases. In this study, an oligodeoxynucleotide (ODN) S2, designed according to the consensus sequence recognized by IRFs in interferon-stimulated response elements, was used as an immunomodulator to investigate its effects on mouse splenic B cells stimulated with the TLR9 agonist CpG ODN, either alone or in combination with antigen, and to explore its underlying mechanisms. The results showed that S2 had a significant negative regulatory effect on CpG ODN induced B cell activation. It also significantly downregulated the pro

SUBMITTER: Lu F 

PROVIDER: S-EPMC12858705 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature