FASN and neoplasm: In contrast, in many human solid carcinomas, lipogenic enzymes (mainly FASN) are highly expressed [2-7] and de novo fatty acids biosynthesis supplies the needs of long chain fatty acids (LCFA) for energy production, protein acylation, synthesis of biological membranes, DNA synthesis and cell cycle progression among other biological processes, providing an advantage for tumour growth and progression [3-5].