Figure 2

GFP⁺ blood vessels in parental B16 tumours. A whole-tissue mount preparation of a parental B16 tumour grown in a GFP⁺ mouse, stained with PE-anti-CD31 and viewed by (A) bright-field or (B) fluorescence using a GFP filter set or a (C) PE-filter set. The images are all of the same field with the bar representing 100 μm.