Effects of ligand and thyroid hormone receptor isoforms on hepatic gene expression profiles of thyroid hormone receptor knockout mice

Paul M. Yen, Xu Feng, Frederic Flamant, Yidong Chen, Robert L. Walker, Roy E Weiss, Olivier Chassande, Jacques Samarut, Samuel Refetoff, Paul S. Meltzer

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Little is known about the overall patterns of thyroid hormone (Th)-mediated gene regulation by the main Th receptor (Tr) isoforms, Tr-α and Tr-β, in vivo. We used 48 complementary DNA microarrays to examine hepatic gene expression profiles of wild-type and Thra and Thrb knockout mice under different Th conditions: no treatment, treatment with 3,3′,5-triiodothyronine (T3), Th-deprivation using propylthiouracil (PTU), and treatment with a combination of PTU and T3. Hierarchical clustering analyses showed that positively regulated genes fit into three main expression patterns. In addition, only a subpopulation of target genes repressed basal transcription in the absence of ligand. Interestingly, Thra and Thrb knockout mice showed similar gene expression patterns to wild-type mice, suggesting that these isoforms co-regulate most hepatic target genes. Differences in the gene expression patterns of Thra/Thrb double-knockout mice and Th-deprived wild-type mice show that absence of receptor and of hormone can have different effects. This large-scale study of hormonal regulation reveals the functions of Th and of Tr isoforms in the regulation of gene expression patterns.

Original languageEnglish (US)
Pages (from-to)581-587
Number of pages7
JournalEMBO Reports
Volume4
Issue number6
DOIs
StatePublished - Jun 1 2003
Externally publishedYes

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Thyroid Hormone Receptors
Transcriptome
Gene expression
Knockout Mice
Protein Isoforms
Thyroid Hormones
Ligands
Propylthiouracil
Liver
Triiodothyronine
Genes
Gene Expression
Gene Expression Regulation
Oligonucleotide Array Sequence Analysis
Cluster Analysis
Transcription
Microarrays
Complementary DNA
Hormones

ASJC Scopus subject areas

  • Genetics
  • Cell Biology

Cite this

Effects of ligand and thyroid hormone receptor isoforms on hepatic gene expression profiles of thyroid hormone receptor knockout mice. / Yen, Paul M.; Feng, Xu; Flamant, Frederic; Chen, Yidong; Walker, Robert L.; Weiss, Roy E; Chassande, Olivier; Samarut, Jacques; Refetoff, Samuel; Meltzer, Paul S.

In: EMBO Reports, Vol. 4, No. 6, 01.06.2003, p. 581-587.

Research output: Contribution to journalArticle

Yen, PM, Feng, X, Flamant, F, Chen, Y, Walker, RL, Weiss, RE, Chassande, O, Samarut, J, Refetoff, S & Meltzer, PS 2003, 'Effects of ligand and thyroid hormone receptor isoforms on hepatic gene expression profiles of thyroid hormone receptor knockout mice', EMBO Reports, vol. 4, no. 6, pp. 581-587. https://doi.org/10.1038/sj.embor.embor862
Yen, Paul M. ; Feng, Xu ; Flamant, Frederic ; Chen, Yidong ; Walker, Robert L. ; Weiss, Roy E ; Chassande, Olivier ; Samarut, Jacques ; Refetoff, Samuel ; Meltzer, Paul S. / Effects of ligand and thyroid hormone receptor isoforms on hepatic gene expression profiles of thyroid hormone receptor knockout mice. In: EMBO Reports. 2003 ; Vol. 4, No. 6. pp. 581-587.
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