FASN and cancer: ACSL5 maintains intracellular homeostasis and cancer cell death, malignance and recurrence by interacting with lipid metabolism‐related enzymes (e.g. acyl‐CoA dehydrogenase long chain, acyl‐CoA oxidases, carnitine palmitoyl transferase I [CPT1s], elongases of very long chain FA and fatty acid synthase [FASN]).8