In two-way MLRs, DCA increased T-cell proliferation slightly, whereas LW6 decreased T-cell proliferation. Two-way MLRs lasted 7 days. Compared to untreated MLRs, DCA increased T-cell proliferation but only by a factor of 17.5%, whereas LW6 induced considerable suppression of T-cell proliferation. Six different two-way MLRs were performed. Error bars correspond to 2 SD. Statistical significant differences (p<0.05) of interesting comparisons are denoted with an asterisk. MLRs, mixed lymphocyte reactions; DCA, dichloroacetate; PBMCs, peripheral blood mononuclear cells; SD, standard deviation.