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. 2013 Feb 1;8(2):e55372. doi: 10.1371/journal.pone.0055372

Figure 4. STS-induced apoptosis in 661W cells.

Figure 4

Dose-dependent induction of apoptosis in 661W cells exposed to increasing amounts of STS (25 to 200 nM) for 24 h, as depicted by (A) increased TUNEL-positive apoptotic cells and (B) decreased level of intracellular ATP content. Data are the mean ±SE of at least four independent experiments, each performed in triplicates.