CD8A and myeloid sarcoma: Further identification was performed by collecting the peripheral blood samples from 50 MS patients (30 RRMS patients and 20 SPMS patients, respectively), as well as 24 healthy participants (healthy donor, HD) (Table 1), both CD8 + TCM and TEM cell proportions were consistent among 3 groups, whereas similar decreasing pattern of CD8 + TN and increasing pattern of CD8 + TEMRA cell patterns were observed in SPMS by comparing with HD and RRMS (Fig. 2C–G).