PMID- 21711933 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20110714 LR - 20211020 IS - 2045-3701 (Electronic) IS - 2045-3701 (Linking) VI - 1 IP - 1 DP - 2011 May 24 TI - Role of dendritic cells in the induction of regulatory T cells. PG - 20 LID - 10.1186/2045-3701-1-20 [doi] AB - Dendritic cells (DCs) play a key role in initiating immune responses and maintaining immune tolerance. In addition to playing a role in thymic selection, DCs play an active role in tolerance under steady state conditions through several mechanisms which are dependent on IL-10, TGF-beta, retinoic acid, indoleamine-2,3,-dioxygenase along with vitamin D. Several of these mechanisms are employed by DCs in induction of regulatory T cells which are comprised of Tr1 regulatory T cells, natural and inducible foxp3+ regulatory T cells, Th3 regulatory T cells and double negative regulatory T cells. It appears that certain DC subsets are highly specialized in inducing regulatory T cell differentiation and in some tissues the local microenvironment plays a role in driving DCs towards a tolerogenic response. In this review we discuss the recent advances in our understanding of the mechanisms underlying DC driven regulatory T cell induction. FAU - Kushwah, Rahul AU - Kushwah R AD - Physiology and Experimental Medicine Research Program, Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G 1X8, Canada. Jim.Hu@utoronto.ca. FAU - Hu, Jim AU - Hu J LA - eng PT - Journal Article DEP - 20110524 PL - England TA - Cell Biosci JT - Cell & bioscience JID - 101561195 PMC - PMC3125210 EDAT- 2011/06/30 06:00 MHDA- 2011/06/30 06:01 PMCR- 2011/05/24 CRDT- 2011/06/30 06:00 PHST- 2011/01/31 00:00 [received] PHST- 2011/05/24 00:00 [accepted] PHST- 2011/06/30 06:00 [entrez] PHST- 2011/06/30 06:00 [pubmed] PHST- 2011/06/30 06:01 [medline] PHST- 2011/05/24 00:00 [pmc-release] AID - 2045-3701-1-20 [pii] AID - 10.1186/2045-3701-1-20 [doi] PST - epublish SO - Cell Biosci. 2011 May 24;1(1):20. doi: 10.1186/2045-3701-1-20.