Cited by 849Bone Metabolism and DiseasesSignaling Pathways in DiseaseNuclear Receptors and Signaling

Autoamplification of NFATc1 expression determines its essential role in bone homeostasis

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Asagiri, Masataka, Sato, Kojiro, Usami, Takako, Ochi, Sae, Nishina, Hiroshi, Yoshida, Hiroki, Morita, Ikuo, Wagner, Erwin F. +3 more·2005·The Journal of Experimental Medicine

Abstract

NFATc1 and NFATc2 are functionally redundant in the immune system, but it was suggested that NFATc1 is required exclusively for differentiation of osteoclasts in the skeletal system. Here we provide genetic evidence that NFATc1 is essential for osteoclast differentiation in vivo by adoptive transfer of NFATc1−/− hematopoietic stem cells to osteoclast-deficient Fos−/− mice, and by Fos−/− blastocyst complementation, thus avoiding the embryonic lethality of NFATc1−/− mice. However, in vitro osteoclastogenesis in NFATc1-deficient cells was rescued by ectopic expression of NFATc2. The discrepancy between the in vivo essential role of NFATc1 and the in vitro effect of NFATc2 was attributed to selective autoregulation of the NFATc1 gene by NFAT through its promoter region. This suggested that an epigenetic mechanism contributes to the essential function of NFATc1 in cell lineage commitment. Thus, this study establishes that NFATc1 represents a potential therapeutic target for bone disease and reveals a mechanism that underlies the essential role of NFATc1 in bone homeostasis.

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Authors
Asagiri, M., Sato, K., Usami, T., Ochi, S., Nishina, H., Yoshida, H., Morita, I., Wagner, E. F., Mak, T. W., Serfling, E., & Takayanagi, H.
Affiliations
  • Tokyo Medical and Dental University (JP)
  • Saga University (JP)
  • Research Institute of Molecular Pathology (AT)
  • University of Toronto (CA)
  • University of Würzburg (DE)
Venue
The Journal of Experimental Medicine
Published
2005-11-07
Volume
202
Issue
9
Pages
1261-1269
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2122518329
Cited by
849
References
35
Citations by year
2026: 20 · 2025: 34 · 2024: 32 · 2023: 40 · 2022: 40 · 2021: 52 · 2020: 59 · 2019: 60 · 2018: 62 · 2017: 52 · 2016: 34 · 2015: 46 · 2014: 43 · 2013: 36 · 2012: 42
FWCI
10.54
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
NFATc1, NFATc2, osteoclastogenesis, bone homeostasis, FOS, hematopoietic stem cells, blastocyst complementation, lineage commitment, bone disease therapy
MeSH terms
Animals, Blastocyst, Bone and Bones, Cell Differentiation, Cells, Cultured, Homeostasis, Liver, Osteoclasts, Promoter Regions, Genetic, Fetal Tissue Transplantation, Proto-Oncogene Proteins c-fos, Mice, Knockout, Epigenesis, Genetic, NFATC Transcription Factors, Mice

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