Figure 1From: Genetic dissection of apoptosis and cell cycle control in response of colorectal cancer treated with preoperative radiochemotherapy Induction of apoptosis by heat shock. HCT116 cells were exposed to heat shock and cultured for 72 h. Grey bars: wild type. Black bars: knock-out mutants. Upper panel p53-/-, middle panel p21CIP/WAF-1-/-, lower panel Bax -/-. *: p < 0.05, **: p < 0.005.Back to article page