Hence, the relative expression levels of STAT3, POU3F2, MEIS1, TCF4, CDK6, CASC3, OGG1, FMR1, hsa-miR-590-3p, hsa-miR-1261, hsa-miR-298 and hsa-miR-310 were quantified using qPCR (2 − ∆Ct) in PBMCs of healthy controls and MS patients. The gene discussed is MEIS1; the disease is myeloid sarcoma.