PMID- 22355103 OWN - NLM STAT- MEDLINE DCOM- 20120504 LR - 20211021 IS - 1091-6490 (Electronic) IS - 0027-8424 (Print) IS - 0027-8424 (Linking) VI - 109 IP - 10 DP - 2012 Mar 6 TI - CC chemokine receptor 4 is required for experimental autoimmune encephalomyelitis by regulating GM-CSF and IL-23 production in dendritic cells. PG - 3897-902 LID - 10.1073/pnas.1114153109 [doi] AB - Dendritic cells (DCs) are pivotal for the development of experimental autoimmune encephalomyelitis (EAE). However, the mechanisms by which they control disease remain to be determined. This study demonstrates that expression of CC chemokine receptor 4 (CCR4) by DCs is required for EAE induction. CCR4(-/-) mice presented enhanced resistance to EAE associated with a reduction in IL-23 and GM-CSF expression in the CNS. Restoring CCR4 on myeloid cells in bone marrow chimeras or intracerebral microinjection of CCR4-competent DCs, but not macrophages, restored EAE in CCR4(-/-) mice, indicating that CCR4(+) DCs are cellular mediators of EAE development. Mechanistically, CCR4(-/-) DCs were less efficient in GM-CSF and IL-23 production and also T(H)-17 maintenance. Intraspinal IL-23 reconstitution restored EAE in CCR4(-/-) mice, whereas intracerebral inoculation using IL-23(-/-) DCs or GM-CSF(-/-) DCs failed to induce disease. Thus, CCR4-dependent GM-CSF production in DCs required for IL-23 release in these cells is a major component in the development of EAE. Our study identified a unique role for CCR4 in regulating DC function in EAE, harboring therapeutic potential for the treatment of CNS autoimmunity by targeting CCR4 on this specific cell type. FAU - Poppensieker, Karola AU - Poppensieker K AD - Institute of Molecular Psychiatry, University of Bonn, 53127 Bonn, Germany. FAU - Otte, David-Marian AU - Otte DM FAU - Schurmann, Britta AU - Schurmann B FAU - Limmer, Andreas AU - Limmer A FAU - Dresing, Philipp AU - Dresing P FAU - Drews, Eva AU - Drews E FAU - Schumak, Beatrix AU - Schumak B FAU - Klotz, Luisa AU - Klotz L FAU - Raasch, Jennifer AU - Raasch J FAU - Mildner, Alexander AU - Mildner A FAU - Waisman, Ari AU - Waisman A FAU - Scheu, Stefanie AU - Scheu S FAU - Knolle, Percy AU - Knolle P FAU - Forster, Irmgard AU - Forster I FAU - Prinz, Marco AU - Prinz M FAU - Maier, Wolfgang AU - Maier W FAU - Zimmer, Andreas AU - Zimmer A FAU - Alferink, Judith AU - Alferink J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120221 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Ccr4 protein, mouse) RN - 0 (Interleukin-23) RN - 0 (Ligands) RN - 0 (Receptors, CCR4) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) SB - IM CIN - Proc Natl Acad Sci U S A. 2012 Sep 11;109(37):E2412-3; author reply E2414. PMID: 22864916 MH - Animals MH - Bone Marrow Cells/cytology MH - Dendritic Cells/*cytology MH - Encephalomyelitis, Autoimmune, Experimental/*immunology/metabolism MH - *Gene Expression Regulation MH - Granulocyte-Macrophage Colony-Stimulating Factor/*metabolism MH - Inflammation MH - Interleukin-23/*metabolism MH - Ligands MH - Macrophages/cytology MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Models, Biological MH - Receptors, CCR4/metabolism/*physiology PMC - PMC3309768 COIS- The authors declare no conflict of interest. EDAT- 2012/02/23 06:00 MHDA- 2012/05/05 06:00 PMCR- 2012/09/06 CRDT- 2012/02/23 06:00 PHST- 2012/02/23 06:00 [entrez] PHST- 2012/02/23 06:00 [pubmed] PHST- 2012/05/05 06:00 [medline] PHST- 2012/09/06 00:00 [pmc-release] AID - 1114153109 [pii] AID - 201114153 [pii] AID - 10.1073/pnas.1114153109 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2012 Mar 6;109(10):3897-902. doi: 10.1073/pnas.1114153109. Epub 2012 Feb 21.