REGULATION OF INSULIN, IGF-I, AND IGF-11 GENE EXPRESSION

Martin L. Adamo, Mark A. Bach, Charles T. Roberts, Derek LeRoith

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Insulin and insulin-like growth factor I (IGF-I) and II (IGF-II) are structurally, functionally, and genetically related. 1–3 Of the three, insulin is the classical endocrine agent. It is synthesized by and released from the pancreatic beta-cell into the circulation, and it regulates cellular metabolism in a number of target tissues. The IGFs, on the other hand, are synthesized in numerous tissues and may act locally, resulting in mitogenesis, growth promotion, insulin-like metabolic effects, and potentially other bioeffects. In addition to these paracrine and/or autocrine modes of cellular regulation, IGF-I may act as an endocrine agent when its synthesis by and release from the liver is stimulated by growth hormone (GH). The circulating IGF-I then stimulates longitudinal growth and body weight gain, thus, giving rise to the original descriptive term, somatomedin-C.

Original languageEnglish (US)
Title of host publicationInsulin-Like Growth Factors
Subtitle of host publicationMolecular and Cellular Aspects
PublisherCRC Press
Pages271-303
Number of pages33
ISBN (Electronic)9781040294499
ISBN (Print)9780849357121
DOIs
StatePublished - Jan 1 2024
Externally publishedYes

ASJC Scopus subject areas

  • General Medicine
  • General Biochemistry, Genetics and Molecular Biology
  • General Agricultural and Biological Sciences

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