FASN and neoplasm: Real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) was used to detect the mRNA expressions of proliferating genes such as c-Myc and CyclinD1 and the mRNA expressions of key genes of energy metabolism such as SREBP-1c and FASN in tumor cells and Western blot was used to detect the expressions of SREBP-1c, FASN proteins (Xue et al., 2021).