Levels of TFRC (P<0.001), PHKG2 (P=0.005), FADS2 (P<0.001), and NOX1 (P=0.011) mRNA relative expression were higher in cancer cells than in immune cells (Figure 11F–I), whereas levels of ALOX5 (P<0.001) mRNA relative expression were lower in cancer cells than in immune cells (Figure 11J). The gene discussed is FADS2; the disease is cancer.