Fig. 4

The nuclear morphology and DNA damage analysis of K562. The samples were measured after 48 h without (a, c) and with (b, d) treatment of 65.76 μM lipopeptides. a, b The white arrows indicate the condensed chromatin; The scale bar is 20 μm. c, d The green fluorescence indicates that the cell is apoptotic, and the intracellular DNase is activated to cut off the damaged DNA; The scale bar is 50 μm