Figure 2. Hepatocyte growth factor (HGF)– and keratinocyte growth factor (KGF)–mediated inhibition in deoxyribonucleic acid degradation and ladder formation during apoptosis. All treatments were performed as described in Figure 1, and the isolated DNA from cultures, after various treatments, was subjected to agarose gel electrophoresis for DNA ladder assay (A). Quantification of DNA breakdown products shown in A (bands 1–5) was performed by integrating areas under different peaks, corresponding to bands 1 to 5 as depicted in the chart (B). The x-axis indicates the base pair sizes of the DNA breakdown products. The experiments were repeated once with similar.