WT4 cells display decreased IL-16 and TPR. (A-B) Real-time PCR analysis of IL-16, IGF1R, TPR, and CENPL in Tax-expressing PBMCs (A) or HTLV-1–transformed (MT2 and C8166) or ATL-like (ED40515(−) and TL-Om1) cell lines (B). Nontransduced T cells or resting PBMCs (RPBMCs) served as controls. Real-time PCR was performed in duplicate; error bars represent the C_T SD of the gene of interest.