• Carbamylation of Integrin αIIbβ3: The Mechanistic Link to Platelet Dysfunction in ESKD

      Binder, Veronika; Chruścicka-Smaga, Barbara; Bergum, Brith; Jaisson, Stéphane; Gillery, Philippe; Sivertsen, Joar; Hervig, Tor; Kaminska, Marta; Tilvawala, Ronak; Nemmara, Venkatesh V; et al. (2022-08-29)
      To investigate carbamylation as a potential mechanistic link between uremia and platelet dysfunction in ESKD, we used liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) to quantify total homocitrulline, and biotin-conjugated phenylglyoxal labeling and Western blot to detect carbamylated integrin α IIb β 3 (a receptor required for platelet aggregation). Flow cytometry was used to study activation of isolated platelets and platelet-rich plasma. In a transient transfection system, we tested activity and fibrinogen binding of different mutated forms of the receptor. We assessed platelet adhesion and aggregation in microplate assays.