Since B4GALNT1 levels are significantly associated not only with the levels of human leukocyte antigen (HLA) class I antigens but also with those of HLA class II members, which are preferentially expressed on various antigen-presenting cells (APCs) (Fig. S2), we speculated that tumor cell-derived B4GALNT1 may be involved in the recruitment or infiltration of some immune cells, especially APCs. Here, B4GALNT1 is linked to neoplasm.