Figure 4
From: BAK overexpression mediates p53-independent apoptosis inducing effects on human gastric cancer cells
Apoptosis inducing effects of BAK overexpression on gastric cancer cells.
A, Morphological observation of gastric cancer cells under electronic microscope: 
Normal cells in untransferred group; 
Chromatin congregating around nuclear membrane in pcDNA-BAK transferred cancer cells; 
Nucleus shrinking in pcDNA-BAK transferred cancer cells. B, Apoptosis detection by TUNEL: There were no obvious apoptotic cells in the untransferred group; The pcDNA-BAK transferred cells reduced in size with obvious nuclear staining.