ELOVL4 and esophageal cancer: For the elongation of de novo fatty acids, circ_0 0 08078 was identified to be downregulated in esophagus cancer (EC), which promoted ELOVL4 expression via miR‐191‐5p, and regulated the proliferation, tube formation, migration and invasion of EC.[118] For the desaturation of de novo fatty acids, these lipid‐metabolic related lncRNAs and circRNAs can involve the SCD‐mediated desaturation of de novo fatty acids.