SIVgag, CD4, IDO, IFN-γ, and TGF-β RNA expression in lymph nodes of ART-treated SIV-infected macaques receiving D-1mT. A and B, SIVgag RNA levels, normalized on GAPDH (A) and CD4 (B) mRNA, in lymph node leukocytes of ART-treated SIV-infected macaques. C–F, mRNA expression for CD4 (C), IDO (D), IFN-γ (E), and TGF-β (F) normalized on GAPDH in lymph node leukocytes of ART-treated SIV-infected macaques. Mean values ± SD are shown in all bar graphs. Lymph nodes were excised 45 days before and at the end of D-1mT administration (day 13) from animals in both group 1 and 2, as well as before ART interruption (day 70) from animals in group 1.