title: Cutting edge: cure of colitis by CD4+CD25+ regulatory T cells.
abstract: CD4(+)CD25(+) regulatory T cells have been shown to prevent T cell-mediated immune pathology; however, their ability to ameliorate established inflammation has not been tested. Using the CD4(+)CD45RB(high) T cell transfer model of inflammatory bowel disease, we show that CD4(+)CD25(+) but not CD4(+)CD25(-)CD45RB(low) T cells are able to cure intestinal inflammation. Transfer of CD4(+)CD25(+) T cells into mice with colitis led to resolution of the lamina propria infiltrate in the intestine and reappearance of normal intestinal architecture. CD4(+)CD25(+) T cells were found to proliferate in the mesenteric lymph nodes and inflamed colon. They were located between clusters of CD11c(+) cells and pathogenic T cells and found to be in contact with both cell types. These studies suggest that manipulation of CD4(+)CD25(+) T cells may be beneficial in the treatment of chronic inflammatory diseases.
authors.affiliation: Sir William Dunn School of Pathology, University of Oxford, Oxford, United Kingdom.
authors.forename: Christian
authors.initials: C
authors.lastname: Mottet
authors.forename: Holm H
authors.initials: HH
authors.lastname: Uhlig
authors.forename: Fiona
authors.initials: F
authors.lastname: Powrie
mesh_terms: D019264:Adoptive Transfer / Q000379:methods; D000818:Animals; D039521:CD11c Antigen / Q000096:biosynthesis; D015496:CD4-Positive T-Lymphocytes / Q000166:cytology / Q000276:immunology* / Q000378:metabolism / Q000637:transplantation*; D002450:Cell Communication / Q000276:immunology; D002455:Cell Division / Q000276:immunology; D002465:Cell Movement / Q000276:immunology; D003092:Colitis / Q000276:immunology* / Q000473:pathology / Q000628:therapy*; D003106:Colon / Q000166:cytology / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D008198:Lymph Nodes / Q000166:cytology / Q000276:immunology / Q000378:metabolism; D008643:Mesentery; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D018345:Mice, Knockout; D016513:Mice, SCID; D015375:Receptors, Interleukin-2 / Q000096:biosynthesis*; D016176:T-Lymphocyte Subsets / Q000166:cytology / Q000276:immunology* / Q000378:metabolism / Q000637:transplantation*; D019282:Wasting Syndrome / Q000276:immunology / Q000628:therapy
chemical_list: D039521:CD11c Antigen; D015375:Receptors, Interleukin-2