Figure 6From: Radiosensitization of colorectal carcinoma cell lines by histone deacetylase inhibitionTSA modulates clonogenic regrowth upon cellular exposure to ionizing radiation (IR). The HCT116 and SW620 cell lines were exposed to increasing IR doses without (○) or following pre-treatment for 18 hours with TSA in concentrations of 30 nM (■) or 100 nM (▲), to determine relative colony formation compared to the unirradiated situation (mean ± SEM, n = 3).Back to article page