Figure 5.

D2R is expressed by endothelial cells in human lung tumor tissue. A: Immunohistochemistry was performed using a monoclonal D2R antibody on a human lung cancer tissue microarray, and each tissue was scored for the percentage of endothelial cells that were D2R‐positive. Each point on the graph represents an individual tissue. B: Representative staining from tissue microarray (top: 10× H&E staining, middle: 10× D2R staining, bottom: 20× D2R staining). Red arrows indicate D2R‐positive endothelial cells.