Increased survivin expression in ATL patients’ PBMCs, MET-1 ATL tumor cells, and HTLV-1–infected cell lines. (A) Western blot analysis of survivin protein levels in PBMCs of ATL patients. (B) Western blot analysis of survivin protein levels in MET-1 ATL tumor cells and in HTLV-1–infected cell lines MT-2, Hut102, and CaGT1.