title: In vivo treatment with a nonapeptide thymic hormone, facteur thymique serique (FTS), ameliorates chronic colitis induced by dextran sulphate sodium in mice.
abstract: Facteur thymique serique (FTS), a thymic hormone with nonapeptide is involved in T cell differentiation in intestine. Here we investigated the effect of FTS on dextran sulphate sodium (DSS)-induced colitis. BALB/c mice were subcutaneously treated with 1 mug/mouse/day of FTS daily. FTS did not affect the course of acute colitis induced by DSS as assessed by survival rate, clinical activity of diseases, extent of tissue damage of colons. On the other hand, FTS significantly ameliorated chronic colitis induced by multiple cycles of DSS as reflected by lower lethality, weight loss, clinical scores and histological scores. The levels of interferon (IFN)-gamma, interleukin 1(IL-1)-beta, and IL-12p40 in the culture supernatants of lamina propria (LP) cells of colon without any stimulation and IFN-gamma by T cells in the LP T cells under T cell receptor (TCR) triggering were reduced in FTS-treated mice, whereas the levels of IL-10 by LP cells and LPT cells were higher in FTS-treated mice. Thus, FTS may serve to suppress inflammation in DSS-induced chronic colitis accompanied by increased IL-10 production.
authors.affiliation: Division of Host Defense, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
authors.forename: Xun
authors.initials: X
authors.lastname: Sun
authors.forename: Hisakata
authors.initials: H
authors.lastname: Yamada
authors.forename: Kazufumi
authors.initials: K
authors.lastname: Yoshihara
authors.forename: Akira
authors.initials: A
authors.lastname: Awaya
authors.forename: Yasunobu
authors.initials: Y
authors.lastname: Yoshikai
mesh_terms: D000818:Animals; D002908:Chronic Disease; D003092:Colitis / Q000139:chemically induced / Q000188:drug therapy* / Q000276:immunology* / Q000473:pathology; D003106:Colon / Q000276:immunology*; D016264:Dextran Sulfate; D004195:Disease Models, Animal; D005260:Female; D005434:Flow Cytometry; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D007279:Injections, Subcutaneous; D007371:Interferon-gamma / Q000276:immunology; D016753:Interleukin-10 / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D009092:Mucous Membrane / Q000187:drug effects* / Q000276:immunology / Q000473:pathology; D013935:Thymic Factor, Circulating / Q000627:therapeutic use*; D016896:Treatment Outcome; D015431:Weight Loss / Q000187:drug effects
chemical_list: D007166:Immunosuppressive Agents; D016753:Interleukin-10; D007371:Interferon-gamma; D016264:Dextran Sulfate; D013935:Thymic Factor, Circulating