2025/03/01 by Samira Safarikia, Riccardo Cirelli, Gionata Spagnoletti +19 · 1 voice
Medicine · Biochemistry, Genetics and Molecular Biology · #Organ Transplantation Techniques and Outcomes #Metabolism and Genetic Disorders #Liver Disease and Transplantation
paper · pdf · doi:10.1002/jimd.70010
openalex publication_date 2025/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/25
The human liver plays a central metabolic role; however, its physiology may become imbalanced in inborn errors of metabolism (IEM), a broad category of monogenic disorders. Liver transplantation has been increasingly used to improve patient metabolic control, especially in diseases related to amino acid metabolism, such as urea cycle disorders and organic acidurias, to provide enzyme replacement. Ex vivo liver normothermic machine perfusion (NMP) techniques have recently been developed to increase the number of transplantable grafts and improve transplantation outcomes. This study used seven NMP of explanted livers from patients with IEM undergoing transplantation as models to investigate disease-related liver metabolism and function. The perfused livers demonstrated positive viability indicators and disease-specific targeted metabolomics providing the proof-of-principle that our ex vivo model expresses the biochemical disease characteristics and responds to therapeutical intervention in a unique "physiological" milieu, offering an ideal tool to study novel treatments, in a setting closely mirroring human disease.