1. Sakaguchi S. Naturally arising Foxp3-expressing CD25+CD4+ regulatory T cells in immunological tolerance to self and non-self. Nat Immunol. 2005;6:345-352.
2. Taylor PA, Lees CJ, Blazar BR. The infusion of ex vivo activated and expanded CD4+CD25+ immune regulatory cells inhibits graft-versus-host disease lethality. Blood. 2002;99:3493-3499.
3. Hoffmann P, Ermann J, Edinger M, Fathman CG, Strober S. Donor-type CD4+CD25+ regulatory T cells suppress lethal acute graft-versus-host disease after allogeneic bone marrow transplantation. J Exp Med. 2002;196:389-399.
4. Cohen JL, Trenado A, Vasey D, Klatzmann D, Salomon BL. CD4+CD25+ immunoregulatory T cells: new therapeutics for graft-versus-host disease. J Exp Med. 2002;196:401-406.
5. Ziegler SF. FOXP3: of mice and men. Annu Rev Immunol. 2006;24:209-226.