ANXA5 and adult T-cell leukemia/lymphoma: Tested against ATLL cell lines and analyzed by colony formation assay, light and fluorescence microscopy, flow cytometry using an annexin V-FITC apoptosis detection kit, immunoblotting, luciferase assay, quantitative real-time PCR, chromatin immunoprecipitation assay, and HTLV-1 transmission assay.