Table 3.
Vandetanib | Pazopanib | Cediranib | Sorafenib | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
nM | pEC50 | % Emax | nM | pEC50 | % Emax | nM | pEC50 | % Emax | nM | pEC50 | % Emax |
0 | 9.90 ± 0.14 | 100.0 | 0 | 9.66 ± 0.11 | 100.0 | 0 | 9.68 ± 0.09 | 100.0 | 0 | 9.72 ± 0.06 | 100.0 |
30 | 9.77 ± 0.10 | 81.0 ± 4.1 | 1 | 9.50 ± 0.09 | 85.2 ± 7.0 | 0.3 | 9.40 ± 0.10 | 64.8 ± 10.4* | 3 | 9.50 ± 0.05 | 70.1 ± 6.9* |
100 | 9.75 ± 0.12 | 58.5 ± 5.7* | 3 | 9.43 ± 0.13 | 71.4 ± 5.2* | 1 | 9.28 ± 0.12 | 31.1 ± 6.6* | 10 | 9.33 ± 0.06* | 52.9 ± 5.1* |
300 | 9.41 ± 0.14* | 29.5 ± 7.9* | 10 | 9.14 ± 0.16* | 32.8 ± 2.0* | 3 | 9.13 ± 0.18* | 8.8 ± 1.9* | 30 | 9.00 ± 0.13* | 18.9 ± 8.9* |
pEC50 and Emax values for VEGF165a obtained in the presence of increasing concentrations of four RTKIs.
P < 0.05 compared with corresponding control in the absence of RTKI (one-way anova). Values are mean ± SEM from six (cediranib), five (pazopanib), seven (sorafenib) and five (vandetanib) separate experiments.