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Cited by 265

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Osteoblast differentiation and skeletal development are regulated by Mdm2–p53 signaling

Open access
Lengner, Christopher J., Steinman, Heather A., Gagnon, James, Smith, Thomas W., Henderson, Janet E., Kream, Barbara E., Stein, Gary S., Lian, Jane B., Jones, Stephen N.·2006·The Journal of Cell Biology

Abstract

Mdm2 is required to negatively regulate p53 activity at the peri-implantation stage of early mouse development. However, the absolute requirement for Mdm2 throughout embryogenesis and in organogenesis is unknown. To explore Mdm2–p53 signaling in osteogenesis, Mdm2-conditional mice were bred with Col3.6-Cre–transgenic mice that express Cre recombinase in osteoblast lineage cells. Mdm2-conditional Col3.6-Cre mice die at birth and display multiple skeletal defects. Osteoblast progenitor cells deleted for Mdm2 have elevated p53 activity, reduced proliferation, reduced levels of the master osteoblast transcriptional regulator Runx2, and reduced differentiation. In contrast, p53-null osteoprogenitor cells have increased proliferation, increased expression of Runx2, increased osteoblast maturation, and increased tumorigenic potential, as mice specifically deleted for p53 in osteoblasts develop osteosarcomas. These results demonstrate that p53 plays a critical role in bone organogenesis and homeostasis by negatively regulating bone development and growth and by suppressing bone neoplasia and that Mdm2-mediated inhibition of p53 function is a prerequisite for Runx2 activation, osteoblast differentiation, and proper skeletal formation.

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Metadata

Authors
Lengner, C. J., Steinman, H. A., Gagnon, J., Smith, T. W., Henderson, J. E., Kream, B. E., Stein, G. S., Lian, J. B., & Jones, S. N.
Venue
The Journal of Cell Biology
Published
2006-03-13
Volume
172
Issue
6
Pages
909-921
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2003946870
Cited by
265
References
12
FWCI
6.14
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Osteoblast differentiation and skeletal development are regulated by Mdm2–p53 signaling. https://app.cochat.ai/papers/10.1083/jcb.200508130
The paper
Lengner, C. J., Steinman, H. A., Gagnon, J., Smith, T. W., Henderson, J. E., Kream, B. E., Stein, G. S., Lian, J. B., & Jones, S. N. (2006). Osteoblast differentiation and skeletal development are regulated by Mdm2–p53 signaling. The Journal of Cell Biology. https://doi.org/10.1083/jcb.200508130

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