Fig. 4.
PARP cleavage is demonstrated with UV exposure but not FasL. Nuclear extracts from hTERT cells were analyzed for cleaved PARP by immunoblotting after exposure to FasL and UV light at 0, 1, 12, 24, and 48 h. NCOA3 was used as our loading control. These data are representative of three independent experiments (n = 3).