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Uncovering the roles of dihydropyrimidine dehydrogenase in fatty-acid induced steatosis using human cellular models
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Uncovering the roles of dihydropyrimidine dehydrogenase in fatty-acid induced steatosis using human cellular models
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Journal Article
Uncovering the roles of dihydropyrimidine dehydrogenase in fatty-acid induced steatosis using human cellular models
2022
Overview
Pyrimidine catabolism is implicated in hepatic steatosis. Dihydropyrimidine dehydrogenase (DPYD) is an enzyme responsible for uracil and thymine catabolism, and DPYD human genetic variability affects clinically observed toxicity following 5-Fluorouracil administration. In an in vitro model of fatty acid-induced steatosis, the pharmacologic inhibition of DPYD resulted in protection from lipid accumulation. Additionally, a gain-of-function mutation of DPYD, created through clustered regularly interspaced short palindromic repeats associated protein 9 (CRISPR-Cas9) engineering, led to an increased lipid burden, which was associated with altered mitochondrial functionality in a hepatocarcionma cell line. The studies presented herein describe a novel role for DPYD in hepatocyte metabolic regulation as a modulator of hepatic steatosis.
