To investigate the role of a rare inherited variant in the MET gene in the development of steatotic liver disease (SLD).
Key Findings:
A previously unreported germline variant in the MET gene was identified in a family with steatohepatitis.
Disruption of MET signaling was linked to altered hepatocyte lipid metabolism, leading to fat accumulation and inflammation.
Rare predicted deleterious MET variants were found in 1.1% of a broader population with steatotic liver disease.
Interpretation:
The findings suggest that a single genetic alteration in the MET gene can drive steatotic liver disease in some patients, challenging the notion that metabolic and environmental factors are the sole contributors.
Limitations:
The study is based on a small sample size of individuals with rare MET variants.
Further research is needed to understand the broader implications of MET variants in liver disease.
Conclusion:
This study presents the first reported germline, nonmalignant MET-driven monogenic form of steatotic liver disease, highlighting the need for further investigation into the role of MET variants in liver disease diagnostics and risk assessment.
