Journal
ACTA HAEMATOLOGICA
Volume 116, Issue 3, Pages 181-185Publisher
KARGER
DOI: 10.1159/000094678
Keywords
CD4(+)CD25(high); CD4(+)/IL-10(+); CD8(+)/IL-10(+); Hodgkin's lymphoma
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We aimed at investigating the distribution of various types of immunoregulatory T cells in the peripheral blood of patients with Hodgkin's lymphoma (HL) (n = 94) being in the state of long-lasting complete remission using flow cytometry. Healthy patients (n = 41) as 'negative' and patients in complete remission with breast cancer (n = 47) as 'positive' controls were investigated in the study. We found significant elevations in the number of CD4(+)CD25(high) naturally occurring regulatory T cells, CD4(+)/intracellular IL-10(+) (Trl) and CD8(+)/intracellular IL-10(+) T cells in HL compared to the healthy controls. In carcinoma patients, however, the number of Trl and CD8(+)/IL-10(+) T cells was higher than that in the other two groups. The increase in the number of CD4(+)CD25(high) T cells seems to be characteristic of HL compared to the two other types of regulatory T cells. This change exists for a long time and it seems to be a characteristic of HL and independent of the types of therapy and the duration of time since therapy. Copyright (c) 2006 S. Karger AG, Basel.
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