The role of circulating igf-i: Lessons from human and animal models

Shoshana Yakar, Yiping Wu, Jennifer Setser, Clifford J. Rosen

Research output: Contribution to journalArticle

Abstract

Insulin-like growth factors (IGF-I and IGF-II) play a crucial role in regulating cell proliferation and differentiation. The IGFs have mitogenic and antiapoptotic effects on normal and transformed cells. These peptide growth factors are produced by virtually all tissues and act in an endocrine, autocrine, and paracrine fashion. The endocrine form of IGF-I originates mostly (75%) from the liver and IGF-binding proteins regulate its bioactivity. Compared to other peptide growth factors, the IGFs are in abundant supply in circulation. The role of this large reservoir of IGFs has been debated for many years. In the last few years substantial progress has been made in understanding the function of the endocrine IGF-I using new animal models. This review will revisit the IGF system with particular attention to the role of circulating IGF-I in growth regulation, metabolism, and cancer.

Original languageEnglish (US)
Pages (from-to)239-248
Number of pages10
JournalEndocrine
Volume19
Issue number3
DOIs
StatePublished - Dec 2002

Fingerprint

Insulin-Like Growth Factor I
Animal Models
Intercellular Signaling Peptides and Proteins
Insulin-Like Growth Factor Binding Proteins
Peptides
Insulin-Like Growth Factor II
Cell Differentiation
Cell Proliferation
Liver
Growth
Neoplasms

Keywords

  • Circulation
  • IGF-I, -II

ASJC Scopus subject areas

  • Endocrinology

Cite this

The role of circulating igf-i : Lessons from human and animal models. / Yakar, Shoshana; Wu, Yiping; Setser, Jennifer; Rosen, Clifford J.

In: Endocrine, Vol. 19, No. 3, 12.2002, p. 239-248.

Research output: Contribution to journalArticle

Yakar, Shoshana ; Wu, Yiping ; Setser, Jennifer ; Rosen, Clifford J. / The role of circulating igf-i : Lessons from human and animal models. In: Endocrine. 2002 ; Vol. 19, No. 3. pp. 239-248.
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