The role of insulin-like growth factor-1 in bone remodeling: A review

Int J Biol Macromol. 2023 May 31:238:124125. doi: 10.1016/j.ijbiomac.2023.124125. Epub 2023 Mar 21.

Abstract

Insulin-like growth factor (IGF)-1 is a polypeptide hormone with vital biological functions in bone cells. The abnormal expression of IGF-1 has a serious effect on bone growth, particularly bone remodeling. Evidence from animal models and human disease suggested that both IGF-1 deficiency and excess cause changes in bone remodeling equilibrium, resulting in profound alterations in bone mass and development. Here, we first introduced the functions and mechanisms of the members of IGFs in bone. Subsequently, the critical role of IGF-1 in the process of bone remodeling were emphasized from the aspects of bone resorption and bone formation respectively. This review explains the mechanism of IGF-1 in maintaining bone mass and bone homeostasis to a certain extent and provides a theoretical basis for further research.

Keywords: Bone formation; Bone resorption; IGF-1.

Publication types

  • Review

MeSH terms

  • Animals
  • Bone Density
  • Bone Resorption*
  • Bone and Bones / metabolism
  • Humans
  • Insulin-Like Growth Factor I* / genetics
  • Insulin-Like Growth Factor I* / metabolism
  • Insulin-Like Growth Factor II / metabolism

Substances

  • Insulin-Like Growth Factor I
  • Insulin-Like Growth Factor II