Skeletal receptors for steroid-family regulating glycoprotein hormones: A multilevel, integrated physiological control system Skeletal receptors for pituitary hormones Blair et al.

Harry C. Blair, Lisa J. Robinson, Li Sun, Carlos M Isales, Terry F. Davies, Mone Zaidi

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Pituitary glycoprotein hormone receptors, including ACTH-R, TSH-R, and FSH-R, occur in bone. Their skeletal expression reflects that central endocrine control is evolutionarily recent. ACTH receptors, in osteoblasts or the adrenal cortex, drive VEGF synthesis. VEGF is essential to maintain vasculature. In bone, ACTH suppression by glucocorticoids can cause osteonecrosis. TSH receptors occur on osteoblasts and osteoclasts, in both cases reducing activity. Thus, TSH directly reduces skeletal turnover, consistent with evolutionary adaptation to stress. FSH receptors accelerate bone resorption, whereas estrogen promotes bone formation, the forces usually balancing. With ovarian failure, low estrogen with high FSH causes rapid bone loss. The skeletal FSH effect in the menopause seems paradoxical, but it is a logical adaptation in lactation, where prolonged FSH elevation also occurs. In addition to receptors, there is some synthesis of pituitary glycoproteins at distributed sites; this is not well studied, but it may further modify the paradigm of central endocrine regulation.

Original languageEnglish (US)
Pages (from-to)26-31
Number of pages6
JournalAnnals of the New York Academy of Sciences
Volume1240
Issue number1
DOIs
StatePublished - Jan 1 2011

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Pituitary Hormone Receptors
Steroid Receptors
Glycoproteins
Bone
Hormones
Osteoblasts
Control systems
Bone and Bones
Adrenocorticotropic Hormone
Vascular Endothelial Growth Factor A
Estrogens
Corticotropin Receptors
FSH Receptors
Thyrotropin Receptors
Osteonecrosis
Adrenal Cortex
Osteoclasts
Bone Resorption
Menopause
Lactation

Keywords

  • Adrenocorticotropin
  • Follitropin
  • G protein-coupled receptor
  • Thyrotropin

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science

Cite this

Skeletal receptors for steroid-family regulating glycoprotein hormones : A multilevel, integrated physiological control system Skeletal receptors for pituitary hormones Blair et al. / Blair, Harry C.; Robinson, Lisa J.; Sun, Li; Isales, Carlos M; Davies, Terry F.; Zaidi, Mone.

In: Annals of the New York Academy of Sciences, Vol. 1240, No. 1, 01.01.2011, p. 26-31.

Research output: Contribution to journalArticle

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