Cited by 232Diet, Metabolism, and DiseaseLipid metabolism and disordersEstrogen and related hormone effects

Monosaccharide-induced lipogenesis regulates the human hepatic sex hormone–binding globulin gene

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Selva, David M., Hogeveen, Kevin N., Innis, Sheila M., Hammond, Geoffrey L.·2007·Journal of Clinical Investigation

Abstract

The liver produces plasma sex hormone-binding globulin (SHBG), which transports sex steroids and regulates their access to tissues. In overweight children and adults, low plasma SHBG levels are a biomarker of the metabolic syndrome and its associated pathologies. Here, we showed in transgenic mice and HepG2 hepatoblastoma cells that monosaccharides (glucose and fructose) reduce human SHBG production by hepatocytes. This occurred via a downregulation of hepatocyte nuclear factor-4alpha (HNF-4alpha) and replacement of HNF-4alpha by the chicken OVA upstream promoter-transcription factor 1 at a cis-element within the human SHBG promoter, coincident with repression of its transcriptional activity. The dose-dependent reduction of HNF-4alpha levels in HepG2 cells after treatment with glucose or fructose occurred in concert with parallel increases in cellular palmitate levels and could be mimicked by treatment with palmitoyl-CoA. Moreover, inhibition of lipogenesis prevented monosaccharide-induced downregulation of HNF-4alpha and reduced SHBG expression in HepG2 cells. Thus, monosaccharide-induced lipogenesis reduced hepatic HNF-4alpha levels, which in turn attenuated SHBG expression. This provides a biological explanation for why SHBG is a sensitive biomarker of the metabolic syndrome and the metabolic disturbances associated with increased fructose consumption.

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  1. Menendez, J.A., et al. 2004. Inhibition of fatty acid synthase (FAS) suppresses HER2/neu (erbB-2) oncogene overexpression in cancer cells. Proc. Natl. Acad. Sci. U. S. A. 101:10715-10720.

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Authors
Selva, D. M., Hogeveen, K. N., Innis, S. M., & Hammond, G. L.
Affiliations
  • University of British Columbia (CA)
  • Western University (CA)
Corresponding author
Hammond, Geoffrey L.
Venue
Journal of Clinical Investigation
Published
2007-11-08
Volume
117
Issue
12
Pages
3979-87
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2026196869
Cited by
232
References
48
Citations by year
2026: 9 · 2025: 11 · 2024: 13 · 2023: 14 · 2022: 22 · 2021: 15 · 2020: 12 · 2019: 7 · 2018: 11 · 2017: 20 · 2016: 17 · 2015: 8 · 2014: 9 · 2013: 18 · 2012: 18
FWCI
4.16
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Child and Family Research Institute
  • Michael Smith Health Research BC
  • Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
sex hormone-binding globulin, monosaccharides, glucose, fructose, lipogenesis, HNF4α, promoter cis-acting elements, palmitate, metabolic syndrome, hepatocytes, fructose consumption
MeSH terms
Adult, Animals, Chickens, Child, Child, Preschool, Fructose, Gene Expression Regulation, Glucose, Humans, Mice, Transgenic, Sex Hormone-Binding Globulin, Gonadal Steroid Hormones, Sweetening Agents, Biomarkers, Metabolic Syndrome, Cell Line, Tumor, Lipogenesis, Overweight, Mice, Hepatocyte Nuclear Factor 1-alpha, Hepatocyte Nuclear Factor 4

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