title: The diabetes type 1 locus Idd6 modulates activity of CD4+CD25+ regulatory T-cells.
abstract: The genetic locus Idd6 confers susceptibility to the spontaneous development of type 1 diabetes in the NOD mouse. Our studies on disease resistance of the congenic mouse strain NOD.C3H 6.VIII showed that Idd6 influences T-cell activities in the peripheral immune system and suggest that a major mechanism by which the Idd6 locus modifies diabetes development is via modulation of regulatory T-cell activities. Our transfer experiments using total splenocytes and purified T-cells demonstrated that the locus specifically controls the efficiency of disease protection mediated by the regulatory CD4(+)CD25(+) T-cell subset. Our data also implicate the Idd6 locus in controlling the balance between infiltrating lymphocytes and antigen-presenting cells within the pancreatic islet.
authors.affiliation: Génétique Moléculaire Murine, CNRS URA 2578, Institut Pasteur, 25 rue du Docteur Roux, 75724 Paris Cedex 15, France. urogner@pasteur.fr
authors.forename: Ute Christine
authors.initials: UC
authors.lastname: Rogner
authors.forename: Françoise
authors.initials: F
authors.lastname: Lepault
authors.forename: Marie-Claude
authors.initials: MC
authors.lastname: Gagnerault
authors.forename: David
authors.initials: D
authors.lastname: Vallois
authors.forename: Joëlle
authors.initials: J
authors.lastname: Morin
authors.forename: Philip
authors.initials: P
authors.lastname: Avner
authors.forename: Christian
authors.initials: C
authors.lastname: Boitard
mesh_terms: D000375:Aging; D000818:Animals; D015496:CD4-Positive T-Lymphocytes / Q000166:cytology / Q000276:immunology* / Q000378:metabolism* / Q000473:pathology; D003922:Diabetes Mellitus, Type 1 / Q000235:genetics* / Q000276:immunology* / Q000517:prevention & control; D007249:Inflammation / Q000276:immunology / Q000473:pathology / Q000517:prevention & control; D007515:Islets of Langerhans / Q000276:immunology; D051379:Mice; D016688:Mice, Inbred NOD; D015375:Receptors, Interleukin-2 / Q000276:immunology* / Q000378:metabolism*; D050378:T-Lymphocytes, Regulatory / Q000166:cytology / Q000276:immunology / Q000378:metabolism / Q000473:pathology
chemical_list: D015375:Receptors, Interleukin-2