title: Decreased CD3-mediated interferon-gamma production in relapsing-remitting multiple sclerosis.
abstract: Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system that has been postulated to be T-cell mediated. We examined the proliferation and cytokine secretion of mononuclear cells after stimulation with OKT3 (anti-CD3) monoclonal antibody concanavalin A, or ionomycin plus myristic acid palmityl ester in subjects with stable relapsing-remitting MS. Control subjects demonstrated good proliferation to anti-CD3 monoclonal antibody whereas subjects with relapsing-remitting MS showed a significantly decreased anti-CD3 monoclonal antibody-mediated response. There was no difference in concanavalin or ionomycin plus myristic acid palmityl ester stimulation between control subjects and MS subjects. Secretion of interferon-gamma was significantly decreased and transforming growth factor-beta was significantly increased from cultures stimulated with anti-CD3 monoclonal antibody, but not ionomycin plus myristic acid palmityl ester or concanavalin A, in MS patients compared to control subjects. Secretion of interleukin-10 and tumor necrosis factor-alpha was not different between control subjects and MS patients following stimulation with anti-CD3 monoclonal antibody, concanavalin A, or ionomycin plus myristic acid palmityl ester, or of interleukin-2 and interleukin-4 following stimulation with anti-CD3 monoclonal antibody or concanavalin A. An abnormality of signal transduction and secretion of the immunomodulatory molecule interferon-gamma may exist in MS via the CD3 T-cell receptor complex.
authors.affiliation: Department of Neurology, University of Texas-Houston Health Science Center 77225, USA.
authors.forename: S A
authors.initials: SA
authors.lastname: Brod
authors.forename: M
authors.initials: M
authors.lastname: Khan
authors.forename: J
authors.initials: J
authors.lastname: Bright
authors.forename: S
authors.initials: S
authors.lastname: Sriram
authors.forename: G D
authors.initials: GD
authors.lastname: Marshall
authors.forename: E M
authors.initials: EM
authors.lastname: Henninger
authors.forename: R H
authors.initials: RH
authors.lastname: Kerman
authors.forename: J S
authors.initials: JS
authors.lastname: Wolinsky
mesh_terms: D017252:CD3 Complex / Q000276:immunology*; D016207:Cytokines / Q000096:biosynthesis; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007371:Interferon-gamma / Q000096:biosynthesis*; D009103:Multiple Sclerosis / Q000276:immunology*
chemical_list: D017252:CD3 Complex; D016207:Cytokines; D007371:Interferon-gamma