IQGAP2 and diffuse large B-cell lymphoma: Given that IQGAP2 mRNA is also related to immunosuppression and leukocyte infiltration (Fig. 6 and Fig. 7), we propose that the high expression of IQGAP2 in leukocytes and various leukocytic components in DLBCL may contribute to the immunosuppressive role of IQGAP2 in DLBCL.