Figure 4.
Apoptosis after stimulation with TNFα. After 6 h, the slices treated with 10 ng/ml TNFα showed an increased apoptotic rate (C, D), whereas the slices treated with the low dose of 1 ng/ml were mainly unstained. After 12 h, however, in all groups, an increased rate of cell death was seen (F, G, H). This was not further increased after 24 h (J, K, L). LK: Negative control.