As activated hepatic stellate cells and liver sinusoidal endothelial cells express high levels of integrin α v β3, Turaga et al. present a strategy for treatment of chronic liver disease using their rationally designed protein (ProAgio) which targets integrin α v β3. They find that ProAgio –mediated apoptosis of these disease-associated cells reverses liver fibrosis and ameliorates intrahepatic vascular resistance in a mouse model
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