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J Immunol. 2009 Nov 15;183(10):6717-23. doi: 10.4049/jimmunol.0803435. Epub 2009 Oct 28.

Chemokine-like receptor-1 expression by central nervous system-infiltrating leukocytes and involvement in a model of autoimmune demyelinating disease.

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Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.


We examined the involvement of chemokine-like receptor-1 (CMKLR1) in experimental autoimmune encephalomyelitis (EAE), a model of human multiple sclerosis. Upon EAE induction by active immunization with myelin oligodendrocyte glycoprotein amino acids 35-55 (MOG(35-55)), microglial cells and CNS-infiltrating myeloid dendritic cells expressed CMKLR1, as determined by flow cytometric analysis. In addition, chemerin, a natural ligand for CMKLR1, was up-regulated in the CNS of mice with EAE. We found that CMKLR1-deficient (CMKLR1 knockout (KO)) mice develop less severe clinical and histologic disease than their wild-type (WT) counterparts. CMKLR1 KO lymphocytes proliferate and produce proinflammatory cytokines in vitro, yet MOG(35-55)-reactive CMKLR1 KO lymphocytes are deficient in their ability to induce EAE by adoptive transfer to WT or CMKLR1 KO recipients. Moreover, CMKLR1 KO recipients fail to fully support EAE induction by transferred MOG-reactive WT lymphocytes. The results imply involvement of CMKLR1 in both the induction and effector phases of disease. We conclude that CMKLR1 participates in the inflammatory mechanisms of EAE and represents a potential therapeutic target in multiple sclerosis.

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