title: L-Selectin-deficient SJL and C57BL/6 mice are not resistant to experimental autoimmune encephalomyelitis.
abstract: L-selectin has been suggested to play a role in the pathogenesis of experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis. Here we demonstrate that L-selectin(-/-) SJL mice are susceptible to proteolipid protein (PLP)-induced EAE because the compromised antigen-specific T cell proliferation in peripheral lymph nodes is fully compensated by the T cell response raised in their spleen. Transfer of PLP-specific T cells into syngeneic recipients induced EAE independent of the presence or absence of L-selectin on PLP-specific T cells or in the recipient. Leukocyte infiltration into the central nervous system parenchyma was detectable independent of the mode of disease induction and the presence or absence of L-selectin. In addition, we found L-selectin(-/-) C57BL/6 mice to be susceptible to myelin oligodendrocyte glycoprotein-induced EAE. Taken together, we demonstrate that in SJL and C57BL/6 mice L-selectin is not required for EAE pathogenesis. The apparent discrepancy of our present observation to previous findings, demonstrating a role of L-selectin in EAE pathogenesis in C57BL/6 mice or myelin-basic protein (MBP)-specific TCR-transgenic B10.PL mice, may be attributed to background genes rather than L-selectin and to a unique role of L-selectin in EAE pathogenesis in MBP-TCR-transgenic mice.
authors.affiliation: Theodor Kocher Institute, University of Bern, Bern, Switzerland.
authors.forename: Chiara
authors.initials: C
authors.lastname: Uboldi
authors.forename: Axinia
authors.initials: A
authors.lastname: Döring
authors.forename: Carsten
authors.initials: C
authors.lastname: Alt
authors.forename: Pila
authors.initials: P
authors.lastname: Estess
authors.forename: Mark
authors.initials: M
authors.lastname: Siegelman
authors.forename: Britta
authors.initials: B
authors.lastname: Engelhardt
mesh_terms: D019264:Adoptive Transfer; D000818:Animals; D002465:Cell Movement; D004681:Encephalomyelitis, Autoimmune, Experimental / Q000276:immunology* / Q000473:pathology; D005260:Female; D007249:Inflammation / Q000473:pathology; D019041:L-Selectin / Q000235:genetics / Q000502:physiology*; D051379:Mice; D008810:Mice, Inbred C57BL; D018991:Myelin Proteolipid Protein / Q000276:immunology; D010047:Ovalbumin / Q000276:immunology; D013154:Spleen / Q000276:immunology
chemical_list: D018991:Myelin Proteolipid Protein; D019041:L-Selectin; D010047:Ovalbumin