Table 1. Effect of 5-FU on the tumour uptake of [125I]SIB–annexin V and [125I]annexin V in vivo in control and 5-FU-treated (165 mg kg−1 i.p.; 48 h post-treatment) mice.
[125I]SIB–annexin V | [125I]annexin V | |
---|---|---|
Control | 0.36±0.05a | 0.94±0.17 |
5-FU treated | 0.84±0.16 | 0.99±0.05 |
Challenge | ND | 0.55±0.03 |
In all mice, the radiotracer was injected and biodistribution studies were performed at 60 min. In one group of mice (challenge experiment), 5-FU-treated mice were pretreated with 100 times unlabelled annexin V at 60 min prior to radiotracer injection. 5-FU=5-fluorouracil; SIB=N-succinimidyl-3-iodobenzoic acid.
Data are mean tumour-to-blood ratios±s.e.m. (n=3–10).