A wide number of genome studies suggest that TERT is a susceptibility gene for the development of many cancers. Essentially it promoter mutation is an early genetic event by activating telomerase. Deregulation of telomerase expression in somatic cells might involve in oncogenesis. Therefore, TERT inhibition has been proposed by many groups, as a target for cancer therapies, which is very popular as a telomerase-based anti-cancer strategy!