The tryptic hydrolysates are generally effective against the three studied carcinogenic cell lines (Mcf-7, Caco-2, and A-549, where IC50 were 42.8, 76.92, and 45.93 μg/mL) by affecting their proliferation as shown by the MTT assay, angiogenesis, by exerting inhibitory activities against VEGFR-2, which was strongly inhibited by about 56%, 76%, and 70%, respectively, and promoting apoptosis by increasing the expression levels of Caspases nine by about 3-8 folds in human cancer cells. Here, KDR is linked to cancer.