AGTR1 and neoplasm: Stimulation by AT1-AA (100 nM) on cell migration was completely blocked either by the AT1R-ECII (100 nM) or by the selective Ang II AT1 receptor antagonist, losartan (300 nM), suggesting that AT1-AA has direct stimulating effect on tumor cell migration and enhancement of OVCAR3 cell migration by AT1-AA is mediated by Ang II AT1 receptor.