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Cited by 204Growth Hormone and Insulin-like Growth FactorsBone Metabolism and DiseasesEstrogen and related hormone effects

The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

Cortisol inhibits the synthesis of insulin-like growth factor-I in skeletal cells.

MCCARTHY, THOMAS L., CENTRELLA, MICHAEL, CANALIS, ERNESTO·1990·Endocrinology
DOI 10.1210/endo-126-3-1569
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Abstract

Supraphysiological levels of cortisol inhibit bone cell replication and matrix synthesis, but its mechanism of action is unknown and could be secondary to an inhibition of local growth factor synthesis. These inhibitory effects of cortisol are the converse of the observed anabolic influences of the endogenously produced insulin-like growth factor-I (IGF-I); therefore, cortisol was examined for its effect on the production of IGF-I in osteoblast (Ob)- and fibroblast/preosteoblast-enriched cell cultures prepared from fetal rat parietal bone. Synthesis of IGF-I was monitored by Northern blot analysis to determine steady state IGF-I mRNA levels and by an IGF-I-specific RIA to quantitate polypeptide levels in acidified and fractionated culture medium. Cortisol at 100 nM decreased IGF-I transcript levels by 60% or more in Ob cultures within 6 h of treatment, and the concentration of immunoreactive IGF-I by 50% after 24 h; these effects were observed in the absence of a change in cellular DNA content. In Ob cultures, PTH at 10 nM increased IGF-I transcripts at 6 h and polypeptide levels at 24 h by 2.5- and 4.1-fold, respectively, and cortisol opposed this effect. The inhibitory effect of cortisol was not specific for the Ob cell population, since at 100 nM it also decreased IGF-I transcript and immunoreactive IGF-I levels in fibroblast/preosteoblast cultures and opposed the stimulation of IGF-I synthesis after treatment with 100 ng/ml GH. In conclusion, high levels of cortisol decrease skeletal IGF-I synthesis by reducing IGF-I transcript levels, and this effect probably contributes to the inhibitory influence of cortisol on bone formation.

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Crossref · 10.1210/endo-126-3-1569

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Metadata

Authors
MCCARTHY, T. L., CENTRELLA, M., & CANALIS, E.
Affiliations
Saint Francis Hospital & Medical Center (US)
ORCID
CANALIS, ERNESTO
Venue
Endocrinology
Publisher
The Endocrine Society
Published
1990-03
Volume
126
Issue
3
Pages
1569-1575
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
DOI
10.1210/endo-126-3-1569
OpenAlex
W1981791036
Cited by
204
References
32
Citations by year
2026: 4 · 2025: 2 · 2024: 3 · 2023: 4 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 3 · 2018: 2 · 2016: 3 · 2015: 5 · 2014: 5 · 2013: 2 · 2012: 3
FWCI
14.46
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Manitoba
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK042424, DK-42424)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR-39201, AR 21707)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Estrogen and related hormone effects
Keywords
cortisol, insulin-like growth factor I, osteoblasts, parietal bone, parathyroid hormone, growth hormone, IGF-I mRNA, bone formation
MeSH terms
Animals, Bone and Bones, Cells, Cultured, DNA, Hydrocortisone, Insulin-Like Growth Factor I, Nucleic Acid Hybridization, Parathyroid Hormone, RNA, Somatomedins, Transcription, Genetic, Blotting, Northern

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