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Immunity. 2001 Mar;14(3):291-302.

CD62L is required on effector cells for local interactions in the CNS to cause myelin damage in experimental allergic encephalomyelitis.

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Department of Immunology, Genentech Incorporated, South San Francisco, CA 94080, USA.


Adhesion molecules are believed to facilitate infiltration of leukocytes into the CNS of mice with experimental allergic encephalomyelitis (EAE). The role of the adhesion molecule CD62L (L-selectin) in the immunopathology of EAE is not known. To study this, we crossed CD62L-deficient mice with myelin basic protein-specific TCR (MBP-TCR) transgenic mice. CD62L-deficient MBP-TCR transgenic mice failed to develop antigen-induced EAE, and, despite the presence of leukocyte infiltration, damage to myelin in the CNS was not seen. EAE could, however, be induced in CD62L-deficient mice upon adoptive transfer of wild-type macrophages. Our results suggest that CD62L is not required for activation of autoimmune CD4 T cells but is important for the final destructive function of effector cells in the CNS and support a novel mechanism whereby CD62L expressed on effector cells is important in mediating myelin damage.

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