In addition, NECTIN2/PVR–TIGIT was observed from myeloid cells, cancer‐associated fibroblasts, and endothelial cells to CD8 T cells in DLBCL [8], and BTLA/MIF–TNFRSF14 from tumor cells to T cells in MBL/CLL [27]. Here, BTLA is linked to B-cell chronic lymphocytic leukemia.