CHUK and lung adenoma: Scatter plots and statistical analyses comparing the number and sizes of tumors in IKKαWT mice versus mice lacking IKKα in AT-II lung epithelial cells are shown in Fig 1I, clearly revealing that IKKα loss in AT-II lung epithelial cells just before urethane exposure increases the number of small lung adenomas and also results in the appearance of a novel class of much larger lung tumors.