CXCL13 and Autoimmunity: We describe here a novel human anti-human CXCL13 antibody, MAb 5261, whose murine analog, MAb 5261-muIg, has demonstrated efficacy in two well-characterized mouse models of autoimmunity: CIA (both prophylactic and therapeutic models) and passively and actively induced models of relapsing-remitting EAE.