Allopurinol reduces antigen-specific and polyclonal activation of human T cells

Autor: Damián ePérez-Mazliah, María Cecilia Albareda, María Gabriela Alvarez, Bruno Edgardo Lococo, Graciela Luciana Bertocchi, Marcos ePetti, Rodolfo eViotti, Susana Adriana Laucella
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Frontiers in Immunology, Vol 3 (2012)
Druh dokumentu: article
ISSN: 1664-3224
DOI: 10.3389/fimmu.2012.00295
Popis: Allopurinol is the most popular commercially available xanthine oxidase inhibitor and it is widely used for treatment of symptomatic hyperuricaemia, or gout. Although, several anti-inflammatory actions of allopurinol have been demonstrated in vivo and in vitro, there have been few studies on the action of allopurinol on T cells. In the current study, we have assessed the effect of allopurinol on antigen-specific and mitogen-driven activation and cytokine production in human T cells. Allopurinol markedly decreased the frequency of IFN-γ and IL-2-producing T cells, either after polyclonal or antigen-specific stimulation with Herpes Simplex virus 1, Influenza virus, tetanus toxoid and Trypanosoma cruzi-derived antigens. Allopurinol attenuated CD69 upregulation after CD3 and CD28 engagement and significantly reduced the levels of spontaneous and mitogen-induced intracellular reactive oxygen species in T cells. The diminished T cell activation and cytokine production in the presence of allopurinol support a direct action of allopurinol on human T cells, offering a potential pharmacological tool for the management of cell-mediated inflammatory diseases.
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