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J Neuroimmunol. 2013 Apr 15;257(1-2):53-8. doi: 10.1016/j.jneuroim.2013.02.002. Epub 2013 Mar 7.

The importance of CCR4 and CCR6 in experimental autoimmune encephalomyelitis.

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Division of Neurology, Department of Internal Medicine 3, National Defense Medical College, Tokorozawa, Japan.


Chemokine receptors (CCRs) play important roles in the pathogenesis of immune-mediated diseases, as well as in normal immune response. We examined the role of CCR6 and CCR4 in experimental autoimmune encephalomyelitis (EAE) by using CCR6(-/-)CCR4(-/-) double knockout (DKO) and single knockout mice. DKO mice developed less severe EAE and presented repressed recall response in the induction phase, especially in the activity of T helper 17 (Th17) cells. CCR6 expression in central nervous system (CNS)-infiltrated cells was diminished in DKO. Our results suggest that CCR6 and CCR4 were involved in a more rapid progression of EAE and that their regulation might be a therapeutic target of human inflammatory demyelinating diseases.

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