Samenvatting
The sterol regulatory element binding proteins (SREBPs) are transcription factors that govern cholesterol and fatty acid metabolism. We recently identified SPRING as a post-transcriptional regulator of SREBP activation. Constitutive or inducible global ablation of Spring in mice is not tolerated, and we therefore develop liver-specific Spring knockout mice (LKO). Transcriptomics and proteomics analysis reveal attenuated SREBP signaling in livers and hepatocytes of LKO mice. Total plasma cholesterol is reduced in male and female LKO mice in both the low-density lipoprotein and high-density lipoprotein fractions, while triglycerides are unaffected. Loss of Spring decreases hepatic cholesterol and triglyceride content due to diminished biosynthesis, which coincides with reduced very-low-density lipoprotein secretion. Accordingly, LKO mice are protected from fructose diet-induced hepatosteatosis. In humans, we find common genetic SPRING variants that associate with circulating high-density lipoprotein cholesterol and ApoA1 levels. This study positions SPRING as a core component of hepatic SREBP signaling and systemic lipid metabolism in mice and humans.
Originele taal-2 | English |
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Artikelnummer | 5181 |
Aantal pagina's | 15 |
Tijdschrift | Nature Communications |
Volume | 14 |
DOI's | |
Status | Published - 25-aug.-2023 |
Vingerafdruk
Duik in de onderzoeksthema's van 'Hepatic SREBP signaling requires SPRING to govern systemic lipid metabolism in mice and humans'. Samen vormen ze een unieke vingerafdruk.Datasets
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SPRING-dependent regulation of hepatic SREBP signaling governs systemic lipid metabolism in mice and humans - raw proteomics files
Hendrix, S. (Creator), Valiloo, M. (Creator), Kingma, J. (Creator), Ottenhof, R. (Creator), Zijlstra, L. (Creator), Sachdev, V. (Creator), Svecla, M. (Creator), Jongejan, A. (Creator), Kuipers, F. (Creator), Brummelkamp, T. (Creator), Rimbert, A. (Creator), Loregger, A. (Creator) & Zelcer, N. (Creator), figshare, 28-jun.-2023
DOI: 10.6084/m9.figshare.22699408.v1, https://figshare.com/articles/dataset/SPRING-dependent_regulation_of_hepatic_SREBP_signaling_governs_systemic_lipid_metabolism_in_mice_and_humans_-_raw_proteomics_files/22699408/1
Dataset
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Hepatic SREBP signaling requires SPRING to govern systemic lipid metabolism in mice and humans
Hendrix, S. (Creator), Valiloo, M. (Creator), Kingma, J. (Creator), Ottenhof, R. (Creator), Zijlstra, L. (Creator), Sachdev, V. (Creator), Svecla, M. (Creator), Jongejan, A. (Creator), Kuipers, F. (Creator), Brummelkamp, T. (Creator), Rimbert, A. (Creator), Norata, G. D. (Creator), Loregger, A. (Creator) & Zelcer, N. (Creator), figshare, 28-jul.-2023
DOI: 10.6084/m9.figshare.22699408, https://figshare.com/articles/dataset/SPRING-dependent_regulation_of_hepatic_SREBP_signaling_governs_systemic_lipid_metabolism_in_mice_and_humans_-_raw_proteomics_files/22699408
Dataset