The TSH receptor and its role in thyroid disease

P. Kopp*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

90 Scopus citations

Abstract

The thyrotropin (TSH) receptor plays a preeminent role in thyroid physiology and disease. TSH, acting through the TSH receptor, is the major stimulator of thyroid cell growth, differentiation and function. In Graves' disease, the TSH receptor is the target of stimulating antibodies that cause hyperthyroidism. Although still a topic of debate, the TSH receptor has been implicated in the pathogenesis of the endocrine ophthalmopathy associated with Graves' disease. Blocking antibodies against the TSH receptor are involved in the development of hypothyroidism in a subset of patients with autoimmune hypothyroidism. Transplacental passage of stimulating or blocking TSH receptor antibodies from a mother with autoimmune thyroid disease may result in transient hyper- or hypothyroidism in early infancy. During pregnancy, the placental hormone human choriogonadotropin (hCG) can cause gestational hyperthyroidism through cross-reaction with the TSH receptor. Gestational hyperthyroidism may also be involved in the pathogenesis of hyperemesis gravidarum. Trophoblast tumors secreting hCG are a rare cause of hyperthyroidism. Somatic activating mutations of the TSH receptor have been identified as a molecular cause of toxic adenomas, whereas activating mutations in the germline give rise to nonautoimmune familial hyperthyroidism or sporadic congenital hyperthyroidism. These gain-of-function mutations are dominant, and one mutated allele is sufficient to result in disease. Inactivating germline mutations of both TSH receptor alleles lead to variable degrees of resistance to TSH, encompassing a spectrum ranging from euthyroid hyperthyrotropinemia to overt hypothyroidism with thyroid hypoplasia.

Original languageEnglish (US)
Pages (from-to)1301-1322
Number of pages22
JournalCellular and Molecular Life Sciences
Volume58
Issue number9
DOIs
StatePublished - 2001

Keywords

  • Autoimmune thyroid disease
  • CAMP
  • Hyperthyroidism
  • Hypothyroidism
  • Mutation
  • Receptor
  • Thyroid
  • Thyrotropin

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology
  • Pharmacology
  • Cellular and Molecular Neuroscience
  • Cell Biology

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