AGTR1 and neoplasm: Evidence for the involvement of AT1R in tumour progression, such as growth, metastasis and angiogenesis, has accumulated in various animal models (Rivera et al, 2001; Fujita et al, 2002; Miyajima et al, 2002; Egami et al, 2003; Uemura et al, 2003; Arrieta et al, 2005).