Immunolocalization of FOXP3 in HCV-infected liver biopsies. Preliminary observations.

Regulatory T cells (Tregs) represent a subset of T lymphocytes. This cell subpopulation plays an important role in controlling immune response as well as in inducing and maintaining immunologic tolerance [1]. The identification of this cell population in pathological condition, such as in hepatitis C virus (HCV) infected patients, may be useful for a better understanding of pathology.