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. 1996 Dec 1;184(6):2445–2450. doi: 10.1084/jem.184.6.2445

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BD-FMK, but not ZVAD-FMK, blocks apoptotic death in CTLL-2 cells induced by several agents. Murine CTLL-2 cells were cultured with ZVAD-FMK (circles), BD-FMK (squares), or ZFA-FMK (triangles), and in the absence (dashed lines) or presence (solid lines) of the following death stimuli: A–D, dexamethasone (50 μM); E–H, etoposide (10 μM) and I–L: IL-2 withdrawal for 18 h. Cell death was measured by apoptotic nuclear morphology (A, E, I ), FACS^®-analyzed sub-G₀ DNA (B, F, J ), trypan blue staining (C, G, K ); and FACS^®-analyzed FITC-Annexin V staining (D, H, L).