IFNA2 and myeloid sarcoma: In contrast, the gene expression levels of IFNA2 were significantly upregulated within PBMC of both MS groups (ΔΔCt −2.49 ± 0.32 relapse group; ΔΔCt −3.51 ± 0.57 remission group) compared to the HD group (ΔΔCt 0.00 ± 0.86) (Figure 5D).