Figure 5. Antitumor effects of combination treatment with HER-2 and VEGF peptide mimics in a transgenic mouse model. Combination treatment with both HER-2 and VEGF peptide mimics (P1 +P3 and P2+P4) cause a greater inhibition of tumor growth (**p < 0.001) while treatment with HER-2 peptides alone was associated with a less significant effect (*p < 0.005) when compared with no therapy (A). All treatments caused a significant reduction in percentage tumor weight (*p < 0.001) as shown (B). Error bars represent standard deviation of the mean.