FCN1 and metabolic disease: As expected, DEGs were enriched in a number of molecular functions related to cell-substrate junction, focal adhesion, ficolin-1-rich granule, regulation of telomerase RNA localization to Cajal body, Fc epsilon RI signaling pathway, Cholesterol metabolism, which confirmed again that ferroptosis molecular patterns played an effective role in tumor immune activation, invasion and proliferation, and metabolic disorder.