Table 1

Cytokine expression profiles of the three classes of regulatory T cells

Cytokine expressed
Th3 cells
T regulatory 1 cells
CD4+CD25+ TR cells

Interferon gamma
+/-
+
-
IL-4
+/-
-
-
Transforming growth factor beta
+++
++
+/-
IL-10
+/-
+++
+/-

The production of cytokine is indicated as absent (-) or present (+) with relative quantities of cytokine indicated by +/- < + < ++ < +++.

Buckner and Ziegler Arthritis Res Ther 2004 6:215   doi:10.1186/ar1226