CD4 and neoplasm: In most tumor samples across the 33 types of tumors, METTL7A was positively correlated with naïve B cells, resting Mast cells, Monocytes, and resting memory CD4 T cells in most tumors, while was negatively associated with Macrophages M0, activated Mast cells, activated memory CD4 T cells, CD8 T cells, and follicular helper T cells (Fig. 5B).