title: In vitro effects of immunosuppressive agents on cytokine production by HTLV-I-infected T cell clones derived from the ocular fluid of patients with HTLV-I uveitis.
abstract: The present study was designed to investigate the in vitro effects of potential therapeutic agents on cytokine production by five HTVL-I-infected T cell clones (TCC) established from the ocular fluid of patients with HTLV-I uveitis. Each of the five HTLV-I-infected TCC was cultured at 1 x 10(6) cells/ml with or without an immunosuppressive agent (hydrocortisone, FK506, rapamycin, indomethacin, or prostaglandin E2) for 22 hr in humidified 5% CO2 in air at 37 C. The production of various cytokines in the culture supernatant from each TCC was measured by ELISA. The HTLV-I-infected TCC produced high amounts of IL-1 alpha, IL-3, IL-6, IL-8, TNF-alpha, IFN-gamma, and GM-CSF, and low but significant levels of IL-2 and IL-10 without any stimuli. Hydrocortisone severely depressed the production by these TCC of all the cytokines except for IL-2, which was slightly increased. Prostaglandin E2 depressed the production of IL-1 alpha, while it up-regulated the production of IL-6, TNF-alpha, and IFN-gamma. Rapamycin depressed the production of IL-6 and TNF-alpha, and FK506 depressed the production of TNF-alpha. Hydrocortisone also severely depressed the cytokine production by PHA-stimulated peripheral blood mononuclear cells obtained from healthy volunteers. Of the immunosuppressive agents tested, hydrocortisone exhibited the strongest suppression of cytokine production by HTLV-I-infected TCC. This result was in agreement with the in vivo effects of hydrocortisone in patients with HTLV-I uveitis. These TCC will be useful in investigating the effects of potential therapeutic agents for HTLV-I uveitis in vitro.
authors.affiliation: Department of Immunology, Kurume University School of Medicine, Fukuoka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Sagawa
authors.forename: M
authors.initials: M
authors.lastname: Mochizuki
authors.forename: K
authors.initials: K
authors.lastname: Katagirl
authors.forename: I
authors.initials: I
authors.lastname: Tsuboi
authors.forename: S
authors.initials: S
authors.lastname: Sugita
authors.forename: N
authors.initials: N
authors.lastname: Mukaida
authors.forename: K
authors.initials: K
authors.lastname: Itoh
mesh_terms: D001826:Body Fluids / Q000166:cytology* / Q000276:immunology*; D002999:Clone Cells; D016207:Cytokines / Q000096:biosynthesis*; D015232:Dinoprostone / Q000494:pharmacology; D005123:Eye / Q000276:immunology*; D015490:HTLV-I Infections / Q000276:immunology*; D015368:Human T-lymphotropic virus 1 / Q000276:immunology* / Q000302:isolation & purification* / Q000472:pathogenicity; D006801:Humans; D007166:Immunosuppressive Agents / Q000494:pharmacology*; D013601:T-Lymphocytes / Q000187:drug effects* / Q000276:immunology* / Q000378:metabolism*; D014605:Uveitis / Q000821:virology*
chemical_list: D016207:Cytokines; D007166:Immunosuppressive Agents; D015232:Dinoprostone