Fig. 6

Intracellular PpIX accumulation in various hematological tumor cells. Intracellular PpIX (mg/g protein) normalized to concentration of cellular proteins in cells incubated with 5-ALA (0–0.5 mmol/L). Naïve T cells, ATL cell lines (TL-Om1 and ATN-1), AML cell lines (HL-60, Kasumi-1, MOLM-13, and THP-1), CML cell line (KCL-22), ALL cell line (CCRF-SB), NHL cell line (HuT78), and MDS cell line (SKM-1) were evaluated. Values are presented as mean (SD).