FIC1-mediated stimulation of FXR activity is decreased with PFIC1 mutations in HepG2 cells.

Abstract excerpt

PURPOSE: Progressive familial intrahepatic cholestasis type 1 (PFIC1) is a specific form of genetic cholestasis caused by functional defects in FIC1/ATP8B1. Although the way FIC1 deficiency leads to PFIC1 remains unclear, some reports suggest that the loss of FIC1 function results in decreased activity of the farnesoid X receptor (FXR) in PFIC1 patients. In this study, in order to elucidate the molecular...

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