Cited by 70Thyroid Disorders and TreatmentsEstrogen and related hormone effectsPeroxisome Proliferator-Activated Receptors

Identical gene regulation patterns of T3 and selective thyroid hormone receptor modulator gC-1

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Yuan, Chaoshen, Lin, Jean Z.H., Sieglaff, Douglas H., Ayers, Steven D., DeNoto-Reynolds, Frances, Baxter, John D., Webb, Paul·2012·Endocrinology

Abstract

Synthetic selective thyroid hormone (TH) receptor (TR) modulators (STRM) exhibit beneficial effects on dyslipidemias in animals and humans and reduce obesity, fatty liver, and insulin resistance in preclinical animal models. STRM differ from native TH in preferential binding to the TRβ subtype vs. TRα, increased uptake into liver, and reduced uptake into other tissues. However, selective modulators of other nuclear receptors exhibit important gene-selective actions, which are attributed to differential effects on receptor conformation and dynamics and can have profound influences in animals and humans. Although there are suggestions that STRM may exhibit such gene-specific actions, the extent to which they are actually observed in vivo has not been explored. Here, we show that saturating concentrations of the main active form of TH, T(3), and the prototype STRM GC-1 induce identical gene sets in livers of euthyroid and hypothyroid mice and a human cultured hepatoma cell line that only expresses TRβ, HepG2. We find one case in which GC-1 exhibits a modest gene-specific reduction in potency vs. T(3), at angiopoietin-like factor 4 in HepG2. Investigation of the latter effect confirms that GC-1 acts through TRβ to directly induce this gene but this gene-selective activity is not related to unusual T(3)-response element sequence, unlike previously documented promoter-selective STRM actions. Our data suggest that T(3) and GC-1 exhibit almost identical gene regulation properties and that gene-selective actions of GC-1 and similar STRM will be subtle and rare.

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Authors
Yuan, C., Lin, J. Z. H., Sieglaff, D. H., Ayers, S. D., DeNoto-Reynolds, F., Baxter, J. D., & Webb, P.
Affiliations
  • Houston Methodist (US)
  • Diabetes Center and Department of Medicine (C.Y., F.D.R., J.D.B.), University of California, San Francisco, California 94122
Corresponding author
Webb, Paul
Venue
Endocrinology
Published
2012-01-01
Volume
153
Issue
1
Pages
501-511
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2075858435
Cited by
70
References
35
Citations by year
2025: 26 · 2024: 1 · 2023: 3 · 2022: 1 · 2021: 5 · 2020: 2 · 2018: 1 · 2017: 5 · 2016: 4 · 2015: 2 · 2014: 7 · 2013: 10 · 2012: 3
FWCI
5.51
Type
journal article
Language
en
Open access
Locations
  • Endocrinology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (NIH-R01)
  • National Institute of Diabetes and Digestive and Kidney Diseases (RC4DK090849, DK61468, DK090849-01)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
Keywords
GC-1, triiodothyronine, thyroid hormone receptor beta, hepatic gene expression, HepG2 cells, hypothyroidism, dyslipidemia, nuclear receptor ligands
MeSH terms
Angiopoietin-Like Protein 4, Acetates, Animals, Binding Sites, Gene Expression Regulation, Humans, Liver, Male, Mice, Inbred C57BL, Phenols, Receptors, Thyroid Hormone, Triiodothyronine, RNA, Small Interfering, Thyroid Hormone Receptors alpha, Thyroid Hormone Receptors beta, Angiopoietins, Mice, Hep G2 Cells

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