Cited by 384Bone Metabolism and DiseasesBone health and osteoporosis researchEstrogen and related hormone effects

Glucocorticoids suppress bone formation via the osteoclast.

Open access
Kim, H.-J.·2006·Journal of Clinical Investigation

Abstract

The pathogenesis of glucocorticoid-induced (GC-induced) bone loss is unclear. For example, osteoblast apoptosis is enhanced by GCs in vivo, but they stimulate bone formation in vitro. This conundrum suggests that an intermediary cell transmits a component of the bone-suppressive effects of GCs to osteoblasts in the intact animal. Bone remodeling is characterized by tethering of the activities of osteoclasts and osteoblasts. Hence, the osteoclast is a potential modulator of the effect of GCs on osteoblasts. To define the direct impact of GCs on bone-resorptive cells, we compared the effects of dexamethasone (DEX) on WT osteoclasts with those derived from mice with disruption of the GC receptor in osteoclast lineage cells (GRoc-/- mice). While the steroid prolonged longevity of osteoclasts, their bone-degrading capacity was suppressed. The inhibitory effect of DEX on bone resorption reflects failure of osteoclasts to organize their cytoskeleton in response to M-CSF. DEX specifically arrested M-CSF activation of RhoA, Rac, and Vav3, each of which regulate the osteoclast cytoskeleton. In all circumstances GRoc-/- mice were spared the impact of DEX on osteoclasts and their precursors. Consistent with osteoclasts modulating the osteoblast-suppressive effect of DEX, GRoc-/- mice are protected from the steroid's inhibition of bone formation.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1172/jci28084

Cites

47 of 47 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Kim, H.-J.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Kim, H.-J.
Venue
Journal of Clinical Investigation
Published
2006-08-01
Volume
116
Issue
8
Pages
2152-2160
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2102680446
Cited by
384
References
47
Citations by year
2026: 6 · 2025: 10 · 2024: 7 · 2023: 11 · 2022: 16 · 2021: 23 · 2020: 22 · 2019: 21 · 2018: 21 · 2017: 9 · 2016: 17 · 2015: 25 · 2014: 18 · 2013: 12 · 2012: 25
FWCI
11.70
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons@Becker (Washington University School of Medicine) (submittedVersion)
Funders
  • National Institutes of Health (DK 056341, AR046523)
  • National Institute of Allergy and Infectious Diseases (AI50655, R01AI050655, R21AI050655)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 056341, P30DK056341)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR 048853, AR 046852, AR 032788, R01AR048812, AR 048812, R01AR032788, R37AR046523, AR046523, R01AR048853, R01AR046852, R01AR046523)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
glucocorticoids, glucocorticoid-induced osteoporosis, osteoclasts, bone formation, dexamethasone, glucocorticoid receptor, RhoA, Rac, Vav3, osteoclast precursors, bone remodeling, osteoblast apoptosis
MeSH terms
Animals, Bone Development, Bone Resorption, Cell Survival, Dexamethasone, Glucocorticoids, Osteoclasts, Receptors, Glucocorticoid, Mice, Knockout, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review