Fig. 5

In vivo mechanism of 2b. a, b Images and statistical analysis of apoptosis in tumor tissue determined by TUNEL. c, d Image and statistical analysis of CD31 expression in tumor tissue. e, f Image and statistical analysis of capillary tube formation. h, i Degradation of ruthenium over time in plasma, blood cells and organs after administration of a single 2b dose of 5 mg/kg