Fig. 3.

CD57⁺ T cells augment IFN-γ production of regular T cells in one-way MLR. MLR was performed using the purified CD57⁺ T cells, regular T cells (a), the purified regular CD4⁺ T cells, CD8⁺ T cells or either regular CD4⁺ T cells or CD8⁺ T cells added with 20% of CD57⁺ T cells (b) as responder cells from healthy volunteers (n =5). After a 72- or 96-h culture, IFN-γ levels of the culture supernatants were analysed using ELISA. All data represented are the mean ± s.e. from five independent experiments. *P < 0·05.