title: (5R)-5-hydroxytriptolide (LLDT-8), a novel triptolide derivative, prevents experimental autoimmune encephalomyelitis via inhibiting T cell activation.
abstract: A novel triptolide derivative (5R)-5-hydroxytriptolide (LLDT-8) has been shown to have potent immunosuppressive activities. Here LLDT-8 was evaluated in experimental autoimmune encephalomyelitis (EAE), the model of multiple sclerosis (MS). LLDT-8 reduced the incidence and severity of EAE, which was associated with the inhibition of the MOG 35-55 lymphocyte recall response, anti-MOG 35-55 T cell responses, interleukin (IL)-2 and interferon (IFN)-gamma production. In vitro, LLDT-8 inhibited primary T cells proliferation, division, IL-2 and IFN-gamma production stimulated with anti-CD3/28. These findings highlight the fact that LLDT-8 prevents EAE by suppressing T cell proliferation and activation, with a potential for treatment of MS.
authors.affiliation: Laboratories of Immunopharmacology and Medicinal Chemistry, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People's Republic of China.
authors.forename: Yun-Feng
authors.initials: YF
authors.lastname: Fu
authors.forename: Yi-Na
authors.initials: YN
authors.lastname: Zhu
authors.forename: Jia
authors.initials: J
authors.lastname: Ni
authors.forename: Xiang-Gen
authors.initials: XG
authors.lastname: Zhong
authors.forename: Wei
authors.initials: W
authors.lastname: Tang
authors.forename: Ru
authors.initials: R
authors.lastname: Zhou
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jia-Rong
authors.initials: JR
authors.lastname: Dong
authors.forename: Pei-Lan
authors.initials: PL
authors.lastname: He
authors.forename: Hua
authors.initials: H
authors.lastname: Wan
authors.forename: Yuan-Chao
authors.initials: YC
authors.lastname: Li
authors.forename: Yi-Fu
authors.initials: YF
authors.lastname: Yang
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Zuo
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D049109:Cell Proliferation / Q000187:drug effects; D004224:Diterpenes / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use*; D004681:Encephalomyelitis, Autoimmune, Experimental / Q000276:immunology / Q000517:prevention & control*; D004852:Epoxy Compounds; D005260:Female; D007166:Immunosuppressive Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D008213:Lymphocyte Activation / Q000187:drug effects* / Q000502:physiology; D051379:Mice; D008810:Mice, Inbred C57BL; D008969:Molecular Sequence Data; D010616:Phenanthrenes / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D013601:T-Lymphocytes / Q000187:drug effects* / Q000276:immunology
chemical_list: C509074:5-hydroxytriptolide; D004224:Diterpenes; D004852:Epoxy Compounds; D007166:Immunosuppressive Agents; D010616:Phenanthrenes; C001899:triptolide