Effects of GH/IGF axis on bone and cartilage

Manisha Dixit, Sher Bahadur Poudel, Shoshana Yakar

Research output: Contribution to journalReview articlepeer-review

Abstract

Growth hormone (GH) and its mediator, the insulin-like growth factor-1 (IGF-1) regulate somatic growth, metabolism and many aspects of aging. As such, actions of GH/IGF have been studied in many tissues and organs over decades. GH and IGF-1 are part of the hypothalamic/pituitary somatotrophic axis that consists of many other regulatory hormones, receptors, binding proteins, and proteases. In humans, GH/IGF actions peak during pubertal growth and regulate skeletal acquisition through stimulation of extracellular matrix production and increases in bone mineral density. During aging the activity of these hormones declines, a state called somatopaguss, which associates with deleterious effects on the musculoskeletal system. In this review, we will focus on GH/IGF-1 action in bone and cartilage. We will cover many studies that have utilized congenital ablation or overexpression of members of this axis, as well as cell-specific gene-targeting approaches used to unravel the nature of the GH/IGF-1 actions in the skeleton in vivo.

Original languageEnglish (US)
Article number111052
JournalMolecular and Cellular Endocrinology
Volume519
DOIs
StatePublished - Jan 1 2021

Keywords

  • Bone
  • Cartilage
  • Growth hormone
  • Insulin-like growth factor-1

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Endocrinology

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