Abstract
Background: Sporotrichosis occurs through contact with contaminated soil and plant. However, the incidence of sporotrichosis as a zoonotic epidemic has increased, particularly in Rio de Janeiro. Aim: In this work, we decided to evaluate some T-cell phenotypes involved in the immune response. Materials & methods: We used flow cytometry to quantify TCD4+ and TCD8+ and Treg from immunocompetent and immunosuppressed mice infected with Sporothrix specieswith different levels of virulence and pathogenicity. Results: It was demonstrated the predominance of TCD4+ over the TCD8+ cells in both groups, inoculated with all the species, and percentages of Treg observed in infected immunocompetent mice. Conclusion: This regulatory phenotype can be associated with a protective immunity in the initial periods of infection.
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