Figure 2
From: Deacetylation of H4-K16Ac and heterochromatin assembly in senescence
A) Bright field pictures of WI-38 fibroblasts showing SA-β-galactosidase activity assayed as described[29]. B) Fluorescent microscopy images of WI-38 fibroblasts showing 4',6'-diamidino-2-phenylindole (DAPI), phospho-T68-Chk2 and phospho-H2AX staining in proliferating (PD 43) and replicatively senescent cells (PD 65).