NR4A1 and myeloid sarcoma: In the NR4A family, NR4A1 transcript level was similar among all groups (Figure 1B), while NR4A2 was underexpressed in MS compared with both HC and HT (Mann–Whitney U test, p = 0.03 and p = 0.002, respectively) (Figure 1C, right panel), corroborating previous studies (17, 18).