ARL4C and colorectal cancer: ARL4C is associated with initiation and progression of leukomyosarcoma [1], glioblastoma [2], lung adenocarcinoma [3,4] and lung squamous cell carcinoma [5], ameloblastoma [6], colorectal cancer [7], liver cancer [8], gastric cancer [9], and renal cell carcinoma [10,11].