PMID- 19781988 OWN - NLM STAT- MEDLINE DCOM- 20100326 LR - 20100119 IS - 1618-0607 (Electronic) IS - 1438-4221 (Linking) VI - 300 IP - 1 DP - 2010 Jan TI - Immunomodulation by semi-mature dendritic cells: a novel role of Toll-like receptors and interleukin-6. PG - 19-24 LID - 10.1016/j.ijmm.2009.08.010 [doi] AB - Dendritic cells (DCs) are key players in activation of the adaptive immune system by their ability of antigen presentation to and priming of T cells. An increasing body of evidence suggests that DCs may also play an important role in induction of tolerance, predominantly by induction of regulatory T cells (T(reg)). More recently, data have been published on how Toll-like receptor (TLR) ligands and cytokines affect DC differentiation, and how DC subsets might be involved in immunoregulation and tolerance rather than in T cell activation. The most important features of tolerance-inducing DCs appear to be their maturation state and their cytokine secretion pattern. The following types of tolerance-inducing DCs have been reported: immature DCs (DCs(im)) or DCs in the steady state (DCs(st)), DCs(IL-10), semi-mature DCs(TNF-alpha), semi-mature DCs(IL-6). With this review article we would like to discuss the aforementioned types of tolerogenic DCs with a focus on semi-mature DCs(IL-6) and discuss their potential role in maintenance of (hepatic or intestinal) immune homeostasis and inflammatory diseases such as inflammatory bowel disease. CI - Copyright 2009 Elsevier GmbH. All rights reserved. FAU - Frick, Julia-Stefanie AU - Frick JS AD - Institute of Medical Microbiology and Hygiene, Eberhard Karls University Tubingen, Elfriede-Aulhorn-Strasse 6, D-72076 Tubingen, Germany. julia-stefanie.frick@med.uni-tuebingen.de FAU - Grunebach, Frank AU - Grunebach F FAU - Autenrieth, Ingo B AU - Autenrieth IB LA - eng PT - Journal Article PT - Review DEP - 20090924 PL - Germany TA - Int J Med Microbiol JT - International journal of medical microbiology : IJMM JID - 100898849 RN - 0 (Interleukin-6) RN - 0 (Toll-Like Receptors) SB - IM MH - Dendritic Cells/*immunology MH - *Homeostasis MH - Humans MH - *Immunomodulation MH - Interleukin-6/*immunology MH - Models, Biological MH - Toll-Like Receptors/*immunology RF - 59 EDAT- 2009/09/29 06:00 MHDA- 2010/03/27 06:00 CRDT- 2009/09/29 06:00 PHST- 2009/09/29 06:00 [entrez] PHST- 2009/09/29 06:00 [pubmed] PHST- 2010/03/27 06:00 [medline] AID - S1438-4221(09)00081-2 [pii] AID - 10.1016/j.ijmm.2009.08.010 [doi] PST - ppublish SO - Int J Med Microbiol. 2010 Jan;300(1):19-24. doi: 10.1016/j.ijmm.2009.08.010. Epub 2009 Sep 24.