TEK and Carcinoma, Lewis Lung: In addition, macrophage-specific RNA-Seq data from Raphael Nemenoff’s group (45) indicate that VEGFR2 expression is strongly correlated with angiopoietin-1 receptor (Tie2) expression in normal and Lewis lung carcinoma macrophages (data not shown), which suggests a relationship between VEGFR2+ myeloid cells and Tie2-expressing monocytes as well as myeloid cells expressing other endothelial cell markers (46).