Cited by 154Bone Metabolism and DiseasesVitamin D Research StudiesBone health and osteoporosis research

Species-specific glucocorticoid and 1,25-dihydroxyvitamin D responsiveness in mouse MC3T3–E1 osteoblasts: dexamethasone inhibits osteoblast differentiation and vitamin D down-regulates osteocalcin gene expression.

Lian, Jane B., Shalhoub, Victoria, Aslam, Fauzia, Frenkel, Baruch, Green, Jack, Hamrah, Michael, Stein, Gary S., Stein, Janet L.·1997·Endocrinology

Abstract

The mouse MC3T3-E1 cell line is nontumorigenic and undergoes a typical program of osteoblast differentiation in vitro, producing a bone-like mineralized extracellular matrix. We report responses of these cells to dexamethasone (Dex) and 1,25-(OH)2D3 that are in contrast to findings from other osteoblast culture systems. First, chronic exposure of both early- and late-passaged MC3T3-E1 cells to 10(-7) M Dex, initiated during the proliferation period, blocked osteoblast differentiation, in contrast to the enhanced differentiation observed in cultures of fetal rat calvarial-derived cells. Secondly, 1,25-(OH)2D3 did not up-regulate expression (messenger RNA or protein synthesis) of the endogenous mouse osteocalcin (OC) gene. Several lines of evidence are presented that suggest this response is caused by sequence specific properties of the mouse OC vitamin D response element. We also observed both qualitative and quantitative differences in expression of cell growth (histone H2B) and phenotype-related genes (collagen, OC, osteopontin, glucocorticoid receptor, and 1, 25-(OH)2D3 receptor), between pre- and postmineralization stage osteoblasts, in response to 24 h steroid hormone treatment. Our findings in MC3T3-E1 cells are consistent with current concepts of selective influences of 1,25-(OH)2D3 and glucocorticoids as a function of osteoblast maturation. However, the inhibition of osteoblast differentiation by chronic Dex at 10(-7) M and the down-regulation of OC by 1,25-(OH)2D3 are novel observations relevant to species-specific responsiveness of mouse bone-expressed genes to steroid hormones during osteoblast differentiation.

Integrity signals

Registry

Crossref · 10.1210/endo.138.5.5117

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

Cites

Flagged first, then by citations

1 of the 56 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Lian, J. B., Shalhoub, V., Aslam, F., Frenkel, B., Green, J., Hamrah, M., Stein, G. S., & Stein, J. L.
Affiliations
University of Massachusetts Chan Medical School (US)
Venue
Endocrinology
Published
1997-05-01
Volume
138
Issue
5
Pages
2117-2127
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2169357450
Cited by
154
References
56
Citations by year
2023: 3 · 2021: 3 · 2020: 2 · 2019: 1 · 2018: 3 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 2 · 2013: 6 · 2012: 10
FWCI
3.90
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • The Journal of the American Medical Association (JAMA) Network (American Medical Association) (submittedVersion)
Funders
  • National Institutes of Health (5r01ar033920-12, 5r01dk046721-03)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-46721)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR33920)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
Keywords
glucocorticoids, 1,25-dihydroxyvitamin D3, dexamethasone, osteogenic differentiation, MC3T3-E1 cells, osteocalcin gene expression, vitamin D response element, osteoblast maturation, bone mineralization, glucocorticoid receptor, 1,25-dihydroxyvitamin D3 receptor, osteopontin, collagen, histone H2B
MeSH terms
Animals, Base Sequence, Calcitriol, Cell Differentiation, Cell Line, Dexamethasone, Glucocorticoids, Histones, Osteoblasts, Promoter Regions, Genetic, RNA, Messenger, Time Factors, Transfection, Osteocalcin, Gene Expression, 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