PMID- 28900681 OWN - NLM STAT- MEDLINE DCOM- 20190605 LR - 20190605 IS - 0070-217X (Print) IS - 0070-217X (Linking) VI - 410 DP - 2017 TI - Regulatory Dendritic Cells. PG - 47-71 LID - 10.1007/82_2017_60 [doi] AB - Dendritic cells (DCs) comprise heterogeneous subsets, functionally classified into conventional DCs (cDCs) and plasmacytoid DCs (pDCs). DCs are considered to be essential antigen (Ag)-presenting cells (APCs) that play crucial roles in activation and fine-tuning of innate and adaptive immunity under inflammatory conditions, as well as induction of immune tolerance to maintain immune homeostasis under steady-state conditions. Furthermore, DC functions can be modified and influenced by stimulation with various extrinsic factors, such as ligands for pattern-recognition receptors (PRRs) and cytokines. On the other hand, treatment of DCs with certain immunosuppressive drugs and molecules leads to the generation of tolerogenic DCs that show downregulation of both the major histocompatibility complex (MHC) and costimulatory molecules, and not only show defective T-cell activation, but also possess tolerogenic properties including the induction of anergic T-cells and regulatory T (T(reg)) cells. To develop an effective strategy for Ag-specific intervention of T-cell-mediated immune disorders, we have previously established the modified DCs with moderately high levels of MHC molecules that are defective in the expression of costimulatory molecules that had a greater immunoregulatory property than classical tolerogenic DCs, which we therefore designated as regulatory DCs (DC(reg)). Herein, we integrate the current understanding of the role of DCs in the control of immune responses, and further provide new information of the characteristics of tolerogenic DCs and DC(reg), as well as their regulation of immune responses and disorders. FAU - Sato, Katsuaki AU - Sato K AD - Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan. katsuaki_sato@med.miyazaki-u.ac.jp. AD - Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-Ku, Tokyo, 100-0004, Japan. katsuaki_sato@med.miyazaki-u.ac.jp. FAU - Uto, Tomofumi AU - Uto T AD - Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan. AD - Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-Ku, Tokyo, 100-0004, Japan. FAU - Fukaya, Tomohiro AU - Fukaya T AD - Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan. AD - Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-Ku, Tokyo, 100-0004, Japan. FAU - Takagi, Hideaki AU - Takagi H AD - Division of Immunology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan. AD - Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-Ku, Tokyo, 100-0004, Japan. LA - eng PT - Journal Article PL - Germany TA - Curr Top Microbiol Immunol JT - Current topics in microbiology and immunology JID - 0110513 SB - IM MH - Animals MH - *Dendritic Cells MH - Humans MH - *Immune Tolerance MH - T-Lymphocytes, Regulatory EDAT- 2017/09/14 06:00 MHDA- 2019/06/06 06:00 CRDT- 2017/09/14 06:00 PHST- 2017/09/14 06:00 [pubmed] PHST- 2019/06/06 06:00 [medline] PHST- 2017/09/14 06:00 [entrez] AID - 10.1007/82_2017_60 [doi] PST - ppublish SO - Curr Top Microbiol Immunol. 2017;410:47-71. doi: 10.1007/82_2017_60.