Strain-specificity in the hydrogen sulphide signalling network following dietary restriction in recombinant inbred mice

Wilkie, S. E., Mulvey, L., Sands, W., Marcu, D. E., Carter, R. N., Morton, N. M., Hine, C., Mitchell, J. R. and Selman, C. (2020) Strain-specificity in the hydrogen sulphide signalling network following dietary restriction in recombinant inbred mice. GeroScience, 42, pp. 801-812. (doi: 10.1007/s11357-020-00168-2) (PMID:32162209) (PMCID:PMC7205779)

[img]
Preview
Text
209905.pdf - Published Version
Available under License Creative Commons Attribution.

740kB

Abstract

Modulation of the ageing process by dietary restriction (DR) across multiple taxa is well established. While the exact mechanism through which DR acts remains elusive, the gasotransmitter hydrogen sulphide (H2S) may play an important role. We employed a comparative-type approach using females from three ILSXISS recombinant inbred mouse strains previously reported to show differential lifespan responses following 40% DR. Following long-term (10 months) 40% DR, strain TejJ89—reported to show lifespan extension under DR—exhibited elevated hepatic H2S production relative to its strain-specific ad libitum (AL) control. Strain TejJ48 (no reported lifespan effect following 40% DR) exhibited significantly reduced hepatic H2S production, while H2S production was unaffected by DR in strain TejJ114 (shortened lifespan reported following 40% DR). These differences in H2S production were reflected in highly divergent gene and protein expression profiles of the major H2S production and disposal enzymes across strains. Increased hepatic H2S production in TejJ89 mice was associated with elevation of the mitochondrial H2S-producing enzyme 3-mercaptopyruvate sulfurtransferase (MPST). Our findings further support the potential role of H2S in DR-induced longevity and indicate the presence of genotypic-specificity in the production and disposal of hepatic H2S in response to 40% DR in mice.

Item Type:Articles
Additional Information:This research was also funded by a Wellcome Trust Investigator award (Reference 100981/Z/13/Z) to Prof. Nik Morton, Univ. Edinburgh.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Mulvey, Lorna and Selman, Professor Colin and Marcu, Ms Diana and Wilkie, Stephen and Sands, Dr William
Authors: Wilkie, S. E., Mulvey, L., Sands, W., Marcu, D. E., Carter, R. N., Morton, N. M., Hine, C., Mitchell, J. R., and Selman, C.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:GeroScience
Publisher:Springer International Publishing
ISSN:2509-2715
ISSN (Online):2509-2723
Published Online:11 March 2020
Copyright Holders:Copyright © The Author(s) 2020
First Published:First published in GeroScience 42:801-812
Publisher Policy:Reproduced under a Creative Commons license

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
304005MRC Precision Medicine Training GrantMorven BarlassMedical Research Council (MRC)MR/N013166/1-LGH/MS/MED25CAMS - Cardiovascular Science
304453Biomedical Vacation Scholarships 2018Donna LammieWellcome Trust (WELLCOTR)213310/Z/18/ZInstitute of Biodiversity, Animal Health and Comparative Medicine