title: Prevention of arthritis by interleukin 10-producing B cells.
abstract: In this study we have shown that activation of arthritogenic splenocytes with antigen and agonistic anti-CD40 gives raise to a B cell population that produce high levels of interleukin (IL)-10 and low levels of interferon (IFN)-gamma. Transfer of these B cells into DBA/1-TcR-beta-Tg mice, immunized with bovine collagen (CII) emulsified in complete Freund's adjuvant inhibited T helper type 1 differentiation, prevented arthritis development, and was also effective in ameliorating established disease. IL-10 is essential for the regulatory function of this subset of B cells, as the B cells population isolated from IL-10 knockout mice failed to mediate this protective function. Furthermore, B cells isolated from arthritogenic splenocytes treated in vitro with anti-IL-10/anti-IL-10R were unable to protect recipient mice from developing arthritis. Our results suggest a new role of a subset of B cells in controlling T cell differentiation and autoimmune disorders.
authors.affiliation: The Kennedy Institute of Rheumatology Division, Faculty of Medicine, Imperial College of Science Technology and Medicine, London W6 8 LH, United Kingdom. c.mauri@ucl.ac.uk
authors.forename: Claudia
authors.initials: C
authors.lastname: Mauri
authors.forename: David
authors.initials: D
authors.lastname: Gray
authors.forename: Naseem
authors.initials: N
authors.lastname: Mushtaq
authors.forename: Marco
authors.initials: M
authors.lastname: Londei
mesh_terms: D019264:Adoptive Transfer; D000818:Animals; D001168:Arthritis / Q000517:prevention & control*; D001402:B-Lymphocytes / Q000502:physiology*; D015496:CD4-Positive T-Lymphocytes / Q000502:physiology; D024043:Collagen Type II / Q000276:immunology; D007371:Interferon-gamma / Q000096:biosynthesis; D016753:Interleukin-10 / Q000502:physiology*; D051379:Mice; D008811:Mice, Inbred DBA
chemical_list: D024043:Collagen Type II; D016753:Interleukin-10; D007371:Interferon-gamma