PLAUR and acute kidney injury: Given that oxidative stress and inflammation, which involve multiple subtypes of immune cells, are vital components of the pathogenesis of AKI (Tran et al. 2016; Rabb et al. 2016), the inflammation—related, immune—derived molecule soluble urokinase plasminogen activator receptor (suPAR) has been under exploration as a novel potential biomarker for AKI, and its role in AKI is currently being investigated as well.