title: Critical role of leukocyte function-associated antigen-1 in liver accumulation of CD4+NKT cells.
abstract: In contrast to peripheral lymphoid organs, a high percentage of T cells in the liver are CD4+NKT cells. We asked whether adhesion molecules play any role in the accumulation of CD4+NKT cells in the liver. Liver CD4+NKT cells expressed ICAM-1 and high levels of LFA-1. In the livers of LFA-1-deficient mice, the number of CD4+NKT cells was markedly decreased. This reduction was restricted to the liver, and no reduction was found in the other organs analyzed. In contrast, the number of liver CD4+NKT cells in ICAM-1-deficient mice was only marginally reduced. In a reciprocal radiation thymocyte reconstitution system with LFA-1-deficient and wild-type mice, LFA-1 expressed on liver cells other than CD4+NKT cells was required for an accumulation of CD4+NKT cells in the liver. These results demonstrate a crucial role for LFA-1 in the accumulation of CD4+NKT cells in the liver.
authors.affiliation: Department of Immunology, Max-Planck-Institute for Infection Biology, Berlin, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Emoto
authors.forename: H W
authors.initials: HW
authors.lastname: Mittrücker
authors.forename: R
authors.initials: R
authors.lastname: Schmits
authors.forename: T W
authors.initials: TW
authors.lastname: Mak
authors.forename: S H
authors.initials: SH
authors.lastname: Kaufmann
mesh_terms: D019264:Adoptive Transfer; D000818:Animals; D000941:Antigens / Q000096:biosynthesis; D000954:Antigens, Surface; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology* / Q000378:metabolism / Q000528:radiation effects; D002465:Cell Movement / Q000235:genetics / Q000276:immunology* / Q000528:radiation effects; D018799:Intercellular Adhesion Molecule-1 / Q000096:biosynthesis / Q000235:genetics; D007694:Killer Cells, Natural / Q000276:immunology* / Q000378:metabolism / Q000528:radiation effects; D037181:Lectins, C-Type; D008099:Liver / Q000166:cytology / Q000276:immunology* / Q000378:metabolism; D016169:Lymphocyte Function-Associated Antigen-1 / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*; D008221:Lymphoid Tissue / Q000166:cytology / Q000276:immunology; D051379:Mice; D020297:Mice, Congenic; D008810:Mice, Inbred C57BL; D008817:Mice, Mutant Strains; D016513:Mice, SCID; D055651:NK Cell Lectin-Like Receptor Subfamily B; D014176:Protein Biosynthesis; D011506:Proteins; D011828:Radiation Chimera / Q000235:genetics / Q000276:immunology; D016176:T-Lymphocyte Subsets / Q000276:immunology* / Q000378:metabolism / Q000528:radiation effects; D013950:Thymus Gland / Q000166:cytology / Q000637:transplantation
chemical_list: D000941:Antigens; D000954:Antigens, Surface; D037181:Lectins, C-Type; D016169:Lymphocyte Function-Associated Antigen-1; D055651:NK Cell Lectin-Like Receptor Subfamily B; D011506:Proteins; D018799:Intercellular Adhesion Molecule-1