%0 Journal Article %T Arg1 expression defines immunosuppressive subsets of tumor-associated macrophages %A Chris S. Garris %A Juhyun Oh %A Mikael J. Pittet %A Rainer H. Kohler %A Ralph Weissleder %A Sean P. Arlauckas %A Seth B. Garren %J Theranostics %D 2018 %I Ivyspring International Publisher %R 10.7150/thno.26888 %X Tumor-associated macrophages (TAM) have attracted attention as they can modulate key cancer-related activities, yet TAM represent a heterogenous group of cells that remain incompletely characterized. In growing tumors, TAM are often referred to as M2-like macrophages, which are cells that display immunosuppressive and tumorigenic functions and express the enzyme arginase 1 (Arg1). %K immunotherapy %K cancer %K PD1 %K macrophage %K arginase %U http://www.thno.org/v08p5842.htm