Carter, R. N. et al. (2021) The hepatic compensatory response to elevated systemic sulfide promotes diabetes. Cell Reports, 37(6), 109958. (doi: 10.1016/j.celrep.2021.109958) (PMID:34758301) (PMCID:PMC8595646)
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Abstract
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.
Item Type: | Articles |
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Additional Information: | This work was funded by a Wellcome Trust New Investigator Award (100981/Z/13/Z to N.M.M.) and a Diabetes UK grant (17/0005697). R.C.H. was funded by a Medical Research Council Discovery Award (MC-PC-15076). |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Hartley, Professor Richard and Selman, Professor Colin and Wilkie, Mr Stephen and McMaster, Dr Claire |
Authors: | Carter, R. N., Gibbins, M. T.G., Barrios-Llerena, M. E., Wilkie, S. E., Freddolino, P. L., Libiad, M., Vitvitsky, V., Emerson, B., Le Bihan, T., Brice, M., Su, H., Denham, S. G., Homer, N. Z.M., McFadden, C., Tailleux, A., Faresse, N., Sulpice, T., Briand, F., Gillingwater, T., Ahn, K. H., Singha, S., McMaster, C., Hartley, R. C., Staels, B., Gray, G. A., Finch, A. J., Selman, C., Banerjee, R., and Morton, N. M. |
College/School: | College of Science and Engineering > School of Chemistry College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine |
Journal Name: | Cell Reports |
Publisher: | Elsevier (Cell Press) |
ISSN: | 2211-1247 |
ISSN (Online): | 2211-1247 |
Copyright Holders: | Copyright © 2021 The Authors |
First Published: | First published in Cell Reports 37(6): 109958 |
Publisher Policy: | Reproduced under a Creative Commons License |
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