CD33 and Hodgkins lymphoma: Finally, CD11b+CD33+CD14−HLA-DR− G-MDSCs, although not tested for their immunosuppressive activity, have been described in whole blood from Hodgkin lymphoma (HL) patients [23], while functionally-characterized HLA-DRlowCD11b+CD33+CD15+ G-MDSCs have been recently identified in cryopreserved peripheral blood mononuclear cells (PBMCs) from patients with chronic lymphocytic leukemia [24].