NR4A1 and nasopharyngeal carcinoma: As we saw previously in the figure, in the early stage of NPC development, most cells were C1 NR4A1+ Memory B cells, while in the later stage of development, there appeared mostly C11 IGKV3D-11+ Plasma cells and C12 IGHV3-66+ Germinal center B cells, etc. (Figures 4I, J).