SERPINE2 and myalgic encephalomeyelitis/chronic fatigue syndrome: Among selected candidate genes, we found SERPINE2 to be specifically targeted by miR-199a-3p in CFs (Fig. 7C and Supplementary Table 4) and two target genes: BCAM and TSPAN6 for miR-199a-5p (Fig. 7C and Supplementary Table 5), which are linked to inflammation and fibrosis.