Fig. 6From: Tumor necrosis factor alpha inhibitors have no effect on a human T-lymphotropic virus type-I (HTLV-I)-infected cell line from patients with HTLV-I-associated myelopathy a After HCT-5 cells were stimulated with PBS or 10 μg/ml of a TNFi for 48 h, the cells were subjected to an apoptotic ladder experiment. PC: positive control. U937 cells were treated with camptothecin. b After HCT-5 cells were stimulated with PBS or 10 μg/ml of a TNFi for 48 h, we evaluated the percentage of apoptotic HCT-5 cells defined as negative propidium iodide and positive phycoerythrin-conjugated annexin V. Error bars represent the standard deviationsBack to article page