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Mol Cell Biol. 2006 Jun;26(11):4311-5.

Congenital hypothyroidism (cretinism) in neuroD2-deficient mice.

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1
Clinical Research, Fred Hutchinson Cancer Research Center, Mailstop D4-100, 1100 Fairview Ave. N., Seattle, WA 98109, USA.

Abstract

Mice lacking neuroD2, a basic helix-loop-helix transcription factor involved in brain development, show growth retardation and other abnormalities consistent with hypothalamic-pituitary-thyroid (HPT) axis dysfunction. neuroD2 is expressed in the paraventricular hypothalamic nuclei, the anterior lobe of pituitary, and the thyroid gland. In neuroD2-deficient mice, thyrotropin-releasing hormone, thyroid-stimulating hormone, and thyroid hormone are decreased in these three regions, respectively. neuroD2-null mice typically die 2 to 3 weeks after birth, but those treated with replacement doses of thyroxine survived more than 8 weeks. These data indicate that neuroD2 is expressed throughout the HPT axis and that all levels of the axis are functionally affected by its absence in mice.

PMID:
16705180
PMCID:
PMC1489089
DOI:
10.1128/MCB.02158-05
[Indexed for MEDLINE]
Free PMC Article
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