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Data S1. Materials and methods.

Table S1. List of the genes investigated.

Table S2. Nucleotide sequences of the primers employed in RT-PCR; the size of the amplified products is indicated in base-pairs (bp).

Fig S1. Combination of troglitazone and 5-AZA-dC treatment enhances the sensitivity to apoptosis and reduces cell growth in cutaneous T-cell lymphoma lines. (A) HUT102 peroxisome proliferator-activated receptor gamma (PPARγ)-positive cells have a higher sensitivity totroglitazone (TZD) than HUT78 PPARγ-negative cells. (B) The combined treatment of TZD and 5-AZA-dC synergistically reduces cell proliferation in a time-and dose-dependent manner. TZD enhances cell growth inhibition at the higher 5-AZA-dC concentration, as a consequence of the PPARγ full reactivation, while the selective antagonist (GW 9662) reduces the effects especially in HUT78 cells. (C) Cell cycle distribution by fluorescence-activated cell sorting FACS analysis shows that TZD and 5-AZA-dC in combination determines a significant increase in the number of cells in the sub-G0-G1 phase (apoptotic phase). *Significant at 0.05 level; **significant at 0.01 level.

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