PMID- 11106572 OWN - NLM STAT- MEDLINE DCOM- 20010104 LR - 20181113 IS - 0002-9440 (Print) IS - 1525-2191 (Electronic) IS - 0002-9440 (Linking) VI - 157 IP - 6 DP - 2000 Dec TI - Intracerebral recruitment and maturation of dendritic cells in the onset and progression of experimental autoimmune encephalomyelitis. PG - 1991-2002 AB - Dendritic cells (DCs) are thought to be key elements in the initiation and maintenance of autoimmune diseases. In this study, we sought evidence that DCs recruited to the central nervous system (CNS), a site that is primarily devoid of resident DCs, play a role in the effector phase and propagation of the immune response in experimental autoimmune encephalomyelitis (EAE). After immunization of SJL mice with proteolipid protein 139-151 peptide, process-bearing cells expressing the DC markers DEC-205 and CD11c appeared early in the spinal cord. During acute, chronic, and relapsing EAE, DEC-205(+) DCs expressing a lymphostimulatory phenotype (including the mature DC marker MIDC-8, major histocompatibility complex class II, CD40, and CD86 molecules) accumulated within the CNS inflammatory cell infiltrates. More prominent infiltration of the spinal cord parenchyma by mature DCs was observed in mice with relapsing disease. Macrophage inflammatory protein 3alpha, a chemokine active on DCs and lymphocytes, and its receptor CCR6 were up-regulated in the CNS during EAE. These findings suggest that intracerebral recruitment and maturation of DCs may be crucial in the local stimulation and maintenance of autoreactive immune responses, and that therapeutic strategies aimed at manipulating DC migration could be useful in the treatment of CNS autoimmune disorders. FAU - Serafini, B AU - Serafini B AD - Laboratory of Organ and System Pathophysiology, Istituto Superiore di Sanita, Rome, Italy. FAU - Columba-Cabezas, S AU - Columba-Cabezas S FAU - Di Rosa, F AU - Di Rosa F FAU - Aloisi, F AU - Aloisi F LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Pathol JT - The American journal of pathology JID - 0370502 RN - 0 (CCL20 protein, human) RN - 0 (CCR6 protein, human) RN - 0 (Chemokine CCL20) RN - 0 (Chemokines, CC) RN - 0 (Macrophage Inflammatory Proteins) RN - 0 (Receptors, CCR6) RN - 0 (Receptors, Chemokine) SB - IM MH - Acute Disease MH - Animals MH - Cellular Senescence MH - Central Nervous System/metabolism/pathology/*physiopathology MH - Chemokine CCL20 MH - *Chemokines, CC MH - Choroid Plexus/pathology MH - Chronic Disease MH - Dendritic Cells/immunology/*physiology MH - Disease Progression MH - Encephalomyelitis, Autoimmune, Experimental/*immunology/pathology/physiopathology MH - Female MH - Macrophage Inflammatory Proteins/metabolism MH - Meninges/pathology MH - Mice MH - Mice, Inbred Strains MH - Receptors, CCR6 MH - Receptors, Chemokine/metabolism MH - Recurrence MH - Spinal Cord/pathology MH - Time Factors MH - Up-Regulation PMC - PMC1885753 EDAT- 2000/12/07 11:00 MHDA- 2001/02/28 10:01 PMCR- 2001/06/01 CRDT- 2000/12/07 11:00 PHST- 2000/12/07 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/12/07 11:00 [entrez] PHST- 2001/06/01 00:00 [pmc-release] AID - S0002-9440(10)64838-9 [pii] AID - 2413 [pii] AID - 10.1016/S0002-9440(10)64838-9 [doi] PST - ppublish SO - Am J Pathol. 2000 Dec;157(6):1991-2002. doi: 10.1016/S0002-9440(10)64838-9.