Abstract
Hepatic ischemia-reperfusion injury remains a significant challenge in liver transplantation potentially leading to delayed graft function, primary nonfunction, and sometimes rejection. Understanding the underlying mechanisms and implementing mitigation strategies are essential for improving transplant outcomes and patient survival. A recent study published by Dery et al shows that alternative splicing of carcinoembryonic antigen-related cell adhesion molecule 1 regulated by hypoxia inducible factor 1 alpha under stress enhances hepatic ischemia tolerance in mice and humans. The authors identified a direct binding of hypoxia inducible factor 1 alpha to the promoter region of polypyrimidine tract-binding protein 1 splicing enzyme, resulting in carcinoembryonic antigen-related cell adhesion molecule 1-short induction and improved posttransplant outcomes. This study has notably elucidated a potential biomarker pertaining to the quality of liver transplant donor grafts.
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