Barbara P. Vistica

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Th1 and Th17 cells are characterized by their expression of IFN-gamma or IL-17, respectively. The finding of Th cells producing both IL-17 and IFN-gamma suggested, however, that certain Th cells may modify their selective cytokine expression. In this study, we examined changes in cytokine expression in an experimental system in which polarized Th1 or Th17(More)
Suppressor of cytokine signaling (SOCS) proteins have emerged as important regulators of cytokine signals in lymphocytes. In this study, we have investigated regulation of SOCS expression and their role in Th cell growth and differentiation. We show that SOCS genes are constitutively expressed in naive Th cells, albeit at low levels, and are differentially(More)
Recently reported lines of Th9 cells, producing IL-9 and IL-10, were generated by polarization with IL-4 and TGF-β and activation with Abs against CD3 and CD28. In this paper, we analyzed features of Th9 lines similarly polarized but activated by the "natural mode" (i.e., exposure of CD4 cells to their target Ag, hen egg lysozyme [HEL] and APCs). Main(More)
PURPOSE To compare the immune response to retinal antigens in a patient with a clinical condition resembling cancer-associated retinopathy with the immune responses of patients with other retinal degenerations or uveitis. METHODS Cellular and humoral immune responses to retinal S-antigen and recoverin were determined in one patient with disease resembling(More)
Suppressors of cytokine signaling (SOCS) have been implicated in regulation of T-cell activation and cytokine-mediated differentiation of T-helper cells. In this study we have characterized the pattern of SOCS expression in naïve and activated primary T-helper cells, examined whether expression of SOCS genes is regulated by cytokine or T-cell receptor(More)
PURPOSE Sight-damaging ocular inflammation is often mediated by T-helper (Th) lymphocytes. The population of Th cells is divided into two major subsets, designated Th1 and Th2, that differ by their cytokine production and biological activities. In the present study, the capacity of Th1 and Th2 cells to induce ocular inflammation was examined. METHODS(More)
Chemokine receptor CXCR3 and its CXC ligands play major roles in Th1 cell-induced inflammatory processes. Here, we examined the expression of CXCR3 by TCR-transgenic Th1 lymphocytes that induce ocular inflammation in mice expressing the target antigen in their lenses. The essential role of CXCR3 in this model was indicated by the observation that the ocular(More)
We have previously shown that transgenic (Tg) mice expressing either soluble or membrane-bound hen egg lysozyme (sHEL or mHEL, respectively) under control of the alphaA-crystallin promoter develop tolerance due to thymic expression of minuscule amounts of HEL. To further address the mechanisms by which this tolerance develops, we mated these two lines of Tg(More)
Synthetic oligodeoxynucleotides (ODN) expressing 'suppressive' TTAGGG motifs down-regulate a variety of proinflammatory and T helper type 1 (Th1)-mediated pathological immune responses. The ability of the archetypal suppressive ODN A151 to inhibit ocular inflammation was examined in two murine models: experimental autoimmune uveitis, induced by immunization(More)