The common activation of the c-Myc oncogene in colorectal cancer (CRC) induces the overexpression of ornithine decarboxylase (ODC), the limiting step in polyamine synthesis, which is a process blocked by α-Difluoromethylornithine (DFMO), an ODC suicide inhibitor and potential CRC treatment. This evidence concerns the gene ODC1 and colorectal cancer.