Summary Impaired hepatic glucose and lipid metabolism are hallmarks of type 2 diabetes. Increased sulfide production or sulfide donor compounds may beneficially regulate hepatic metabolism. Disposal of sulfide through the sulfide oxidation pathway (SOP) is critical for maintaining sulfide within a safe physiological range. We show that mice lacking the liver- enriched mitochondrial SOP enzyme thiosulfate sulfurtransferase (Tst−/− mice) exhibit high circulating sulfide, increased gluconeogenesis, hypertriglyceridemia, and fatty liver. Unexpectedly, hepatic sulfide levels are normal in Tst−/− mice because of exaggerated induction of sulfide disposal, with associated suppression of global protein persulfidation and nuclear respiratory factor 2 target protein levels. Hepatic proteomic and persulfidomic profiles converge on gluconeogenesis and lipid metabolism, revealing a selective deficit in medium-chain fatty acid oxidation in Tst−/− mice. We reveal a critical role of TST in hepatic metabolism that has implications for sulfide donor strategies in the context of metabolic disease.
The hepatic compensatory response to elevated systemic sulfide promotes diabetes
Roderick N. Carter,M. Gibbins,M. Barrios-Llerena,Stephen E. Wilkie,P. Freddolino,Marouane Libiad,V. Vitvitsky,Barry Emerson,T. Le Bihan,M. Brice,Huizhong Su,Scott G. Denham,Natalie Z. M. Homer,Clare Mc Fadden,A. Tailleux,N. Faresse,T. Sulpice,F. Briand,T. Gillingwater,K. Ahn,S. Singha,Claire McMaster,Richard C. Hartley,Bart Staels,Gillian A. Gray,Andrew J. Finch,Colin Selman,Ruma Banerjee,Nicholas M. Morton
Published 2021 in Cell Reports
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- Publication year
2021
- Venue
Cell Reports
- Publication date
2021-11-01
- Fields of study
Medicine, Environmental Science
- Identifiers
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- Source metadata
Semantic Scholar, PubMed
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