The interaction between nuclear receptor corepressor and histone deacetylase 3 regulates both positive and negative thyroid hormone action in vivo

Seo Hee You, Xiaohui Liao, Roy E Weiss, Mitchell A. Lazar

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Thyroid hormone (TH) plays a critical role in development, growth, and metabolism by binding to nuclear TH receptors to modulate gene expression. In the absence of TH, TH receptors repress genes that are TH-activated by recruiting the nuclear receptor corepressor (NCoR), which exists in a tight complex with histone deacetylase 3 (HDAC3). Here we explored the actions of TH in the deacetylase activating domain mutant (DADm) mouse, whose NCoR-HDAC3 interaction is genetically disrupted. Several TH-activated genes were derepressed in the liver of euthyroid and hypothyroid DADm mice, consistent with the corepressor paradigm and a critical role of the NCoR-HDAC3 interaction in basal repression. The role of corepressors in genes that are down-regulated by TH is less well understood. Remarkably, circulating TSH levels were increased in euthyroid DADm mice, and the pituitary expression of TSHα, a classic TH-down-regulated gene, was modestly but significantly elevated regardless of TH status. Thus, the NCoR interaction with HDAC3 modulates expression of both positively- and negatively-regulated genes by TH in vivo.

Original languageEnglish (US)
Pages (from-to)1359-1367
Number of pages9
JournalMolecular Endocrinology
Volume24
Issue number7
DOIs
StatePublished - 2010
Externally publishedYes

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Co-Repressor Proteins
Thyroid Hormones
Thyroid Hormone Receptors
Genes
histone deacetylase 3
Cytoplasmic and Nuclear Receptors
Growth and Development
Gene Expression

ASJC Scopus subject areas

  • Molecular Biology
  • Endocrinology
  • Medicine(all)

Cite this

The interaction between nuclear receptor corepressor and histone deacetylase 3 regulates both positive and negative thyroid hormone action in vivo. / You, Seo Hee; Liao, Xiaohui; Weiss, Roy E; Lazar, Mitchell A.

In: Molecular Endocrinology, Vol. 24, No. 7, 2010, p. 1359-1367.

Research output: Contribution to journalArticle

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