Different functions for the thyroid hormone receptors TRα and TRβ in the control of thyroid hormone production and post-natal development

Karine Gauthier, Olivier Chassande, Michela Plateroti, Jean Paul Roux, Claude Legrand, Bertrand Pain, Bernard Rousset, Roy E Weiss, Jacqueline Trouillas, Jacques Samarut

Research output: Contribution to journalArticle

305 Citations (Scopus)

Abstract

The biological activities of thyroid hormones are thought to be mediated by receptors generated by the TRα and TRβ loci. The existence of several receptor isoforms suggests that different functions are mediated by specific isoforms and raises the possibility of functional redundancies. We have inactivated both TRα and TRβ genes by homologous recombination in the mouse and compared the phenotypes of wild-type, and single and double mutant mice. We show by this method that the TRβ receptors are the most potent regulators of the production of thyroid stimulating hormone (TSH). However, in the absence of TRβ, the products of the TRα gene can fulfill this function as, in the absence of any receptors, TSH and thyroid hormone concentrations reach very high levels. We also show that TRβ, in contrast to TRα, is dispensable for the normal development of bone and intestine. In bone, the disruption of both TRα and TRβ genes does not modify the maturation delay observed in TRα(-/-) mice. In the ileum, the absence of any receptor results in a much more severe impairment than that observed in TRα(-/-) animals. We conclude that each of the two families of proteins mediate specific functions of triiodothyronin (T3), and that redundancy is only partial and concerns a limited number of functions.

Original languageEnglish (US)
Pages (from-to)623-631
Number of pages9
JournalEMBO Journal
Volume18
Issue number3
DOIs
StatePublished - Feb 1 1999
Externally publishedYes

Fingerprint

Thyroid Hormone Receptors
Thyroid Hormones
Genes
Protein Isoforms
Redundancy
Thyrotropin Receptors
Bone
Homologous Recombination
Bone Development
Thyrotropin
Ileum
Intestines
Bioactivity
Phenotype
Bone and Bones
Animals
Proteins

Keywords

  • Bone
  • Intestine
  • Knockout
  • Thyroid hormone receptor
  • TSH

ASJC Scopus subject areas

  • Genetics
  • Cell Biology

Cite this

Different functions for the thyroid hormone receptors TRα and TRβ in the control of thyroid hormone production and post-natal development. / Gauthier, Karine; Chassande, Olivier; Plateroti, Michela; Roux, Jean Paul; Legrand, Claude; Pain, Bertrand; Rousset, Bernard; Weiss, Roy E; Trouillas, Jacqueline; Samarut, Jacques.

In: EMBO Journal, Vol. 18, No. 3, 01.02.1999, p. 623-631.

Research output: Contribution to journalArticle

Gauthier, K, Chassande, O, Plateroti, M, Roux, JP, Legrand, C, Pain, B, Rousset, B, Weiss, RE, Trouillas, J & Samarut, J 1999, 'Different functions for the thyroid hormone receptors TRα and TRβ in the control of thyroid hormone production and post-natal development', EMBO Journal, vol. 18, no. 3, pp. 623-631. https://doi.org/10.1093/emboj/18.3.623
Gauthier, Karine ; Chassande, Olivier ; Plateroti, Michela ; Roux, Jean Paul ; Legrand, Claude ; Pain, Bertrand ; Rousset, Bernard ; Weiss, Roy E ; Trouillas, Jacqueline ; Samarut, Jacques. / Different functions for the thyroid hormone receptors TRα and TRβ in the control of thyroid hormone production and post-natal development. In: EMBO Journal. 1999 ; Vol. 18, No. 3. pp. 623-631.
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