Since overexpression of neuronal proteins gamma-synuclein (γ-Syn) and cellular prion protein (PrPC) is always detected in advanced stages of cancer diseases which involve metastasis, this study aimed to investigate whether γ-Syn or PrPC overexpression in colorectal adenocarcinoma, LS 174T cells affects angiogenesis of endothelial cells, EA.hy 926 (EA). Here, PRNP is linked to cancer.