FASN and cancer: Several studies have confirmed the important roles of FA metabolism in tumor growth and metastasis.[26] It has been reported that increased expression of FA synthase (FASN) in GBM supports cytosolic acetyl‐CoA levels, which can be used for lipogenesis.[27] Moreover, cancer cells that are abundant in UFAs tend to display fluid membranes due to the high fluidity of UFAs, which contributes to migration and facilitates cancer infiltration.[28] Similarly, the infiltrating lesions contain more nucleic acids than normal tissues.