Cited by 108TGF-β signaling in diseasesLiver physiology and pathologyThyroid Disorders and Treatments

Thyroid hormones inhibit TGF-β signaling and attenuate fibrotic responses

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Alonso-Merino, Elvira, Martín Orozco, Rosa, Ruíz-Llorente, Lidia, Martínez-Iglesias, Olaia A., Velasco-Martín, Juan Pedro, Montero-Pedrazuela, Ana, Fanjul-Rodríguez, Luisa, Contreras-Jurado, Constanza +2 more·2016·Proceedings of the National Academy of Sciences

Abstract

TGF-β, the most potent profibrogenic factor, acts by activating SMAD (mothers against decapentaplegic) transcription factors, which bind to SMAD-binding elements in target genes. Here, we show that the thyroid hormone triiodothyronine (T3), through binding to its nuclear receptors (TRs), is able to antagonize transcriptional activation by TGF-β/SMAD. This antagonism involves reduced phosphorylation of SMADs and a direct interaction of the receptors with SMAD3 and SMAD4 that is independent of T3-mediated transcriptional activity but requires residues in the receptor DNA binding domain. T3 reduces occupancy of SMAD-binding elements in response to TGF-β, reducing histone acetylation and inhibiting transcription. In agreement with this transcriptional cross-talk, T3 is able to antagonize fibrotic processes in vivo. Liver fibrosis induced by carbon tetrachloride is attenuated by thyroid hormone administration to mice, whereas aged TR knockout mice spontaneously accumulate collagen. Furthermore, skin fibrosis induced by bleomycin administration is also reduced by the thyroid hormones. These findings define an important function of the thyroid hormone receptors and suggest TR ligands could have beneficial effects to block the progression of fibrotic diseases.

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Authors
Alonso-Merino, E., Martín Orozco, R., Ruíz-Llorente, L., Martínez-Iglesias, O. A., Velasco-Martín, J. P., Montero-Pedrazuela, A., Fanjul-Rodríguez, L., Contreras-Jurado, C., Regadera, J., & Aranda, A.
Affiliations
  • Consejo Superior de Investigaciones Científicas (ES)
  • Instituto de Investigaciones Biomédicas “Alberto Sols,” Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, 20829 Madrid, Spain;
  • Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, 20829 Madrid, Spain
  • Universidad Autónoma de Madrid (ES)
Corresponding author
Aranda, Ana
Venue
Proceedings of the National Academy of Sciences
Published
2016-05-31
Volume
113
Issue
24
Pages
E3451-60
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2409493994
Cited by
108
References
57
Citations by year
2026: 6 · 2025: 14 · 2024: 21 · 2023: 10 · 2022: 9 · 2021: 11 · 2020: 10 · 2019: 13 · 2018: 6 · 2017: 4 · 2016: 3 · 2015: 1
FWCI
4.51
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Tesis Doctorals en Xarxa (Consorci de Serveis Universitaris de Catalunya) (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • Hispana (submittedVersion, other-oa)
  • Biblos-e Archivo (Universidad Autónoma de Madrid) (submittedVersion, public-domain)
Funders
  • Ministerio de Economía y Competitividad (BFU2011-28058, BFU2014-53610P)
  • Ministry of Economy and Competitiveness | Instituto de Salud Carlos III (RD12/0036/0030)
  • Comunidad de Madrid (S2011/BMD-2328)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
Keywords
thyroid hormones, triiodothyronine, TGF-beta signaling, Smad3, SMAD4, thyroid hormone receptor, transcriptional crosstalk, Smad phosphorylation, Smad binding element, histone acetylation, liver fibrosis, carbon tetrachloride, skin fibrosis, bleomycin, collagen deposition, fibrosis
MeSH terms
Animals, Bleomycin, Carbon Tetrachloride Poisoning, Liver Cirrhosis, Triiodothyronine, Signal Transduction, Transforming Growth Factor beta, Mice, Knockout, Mice, Smad3 Protein, Smad4 Protein

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