Immune tolerance maintenance system [17]

No.CategoryMembersReferences
1Main cell lineagesTolerogenic dendritic cells[50, 51]
Peripheral (pTreg) Foxp3+ cells[2, 45, 52]
2pTreg subsets on mucosal surfaces (they do not express Foxp3)Type 1 regulatory T cell (Tr1)[53]
Type 3 helper T cell (Th3)
3Other cell lineagesM2a macrophages[5456]
Myeloid-derived suppressor cells[57]
Regulatory B cells[58, 59]
4Own body-derived moleculesImmunosuppressive cytokines (IL-10, TGF-β, IL-35)[45, 60, 61]
Coinhibitory molecules[62, 63]
Blocking antibodies[64]
Protolerogenic neurotransmitters and neuropeptides[4, 6568]
5OtherTolerogenic microbiota[38, 41]