Cited by 571Bone Metabolism and DiseasesSignaling Pathways in DiseaseNuclear Receptors and Signaling

Regulation of NFATc1 in Osteoclast Differentiation

Open access
Kim, Jung Ha, Kim, Nacksung·2014·Journal of Bone Metabolism

Abstract

Osteoclasts are unique cells that degrade the bone matrix. These large multinucleated cells differentiate from the monocyte/macrophage lineage upon stimulation by two essential cytokines, macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor-kappa B (NF-κB) ligand (RANKL). Activation of transcription factors such as microphthalmia transcription factor (MITF), c-Fos, NF-κB, and nuclear factor-activated T cells c1 (NFATc1) is required for sufficient osteoclast differentiation. In particular, NFATc1 plays the role of a master transcription regulator of osteoclast differentiation. To date, several mechanisms, including transcription, methylation, ubiquitination, acetylation, and non-coding RNAs, have been shown to regulate expression and activation of NFATc1. In this review, we have summarized the various mechanisms that control NFATc1 regulation during osteoclast differentiation.

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Crossref · 10.11005/jbm.2014.21.4.233

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  • NFATc1 binds to its own promoter, switching on an epigenetically controlled autoregulatory cycle that permits efficient induction of TRAP, cathepsin K, DC-STAMP, and ATP6v0d2.

    “NFATc1 binds to its own promoter, switching on an epigenetically controlled autoregulatory cycle that permits efficient induction of the osteoclast-specific genes, tartrate-resistant acid phosphatase (TRAP), cathepsin K, as well as the fusion-specific genes, dendritic cell-specific transmembrane protein (DC-STAMP) and ATPase H+ transporting V0 subunit D2 (ATP6v0d2) [20,25,26] (Figure 3).”

    From Osteoclasts and Microgravity (2020) · cites this paper as [20]

    The 'Transcriptional regulation of NFATc1 in osteoclasts' section (page not provided) reports recruitment of NFATc1 to its own promoter and an epigenetically supported autoregulatory loop. The Introduction (page not provided) identifies TRAP and cathepsin K as NFATc1-regulated genes, but our copy does not identify DC-STAMP or ATP6v0d2 as targets or establish that the loop permits induction of all four genes. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • In RANKL-activated HSCs, polyubiquitination of NIK is inhibited and TRAF6 activates a cascade of kinases including ERK, p38, JNK, PI3K, Akt, and IkB kinases.

    “In RANKL-activated HSCs, polyubiquitination of NIK is inhibited [18], and TRAF6 activates a cascade of kinases, including extracellular regulated kinase (ERK), p38 mitogen-activated protein kinase (p38), c-jun N-terminal kinase (JNK), phosphatidylinositol-3 kinase (PI3K), and Akt and IkB kinases [20,21].”

    From Osteoclasts and Microgravity (2020) · cites this paper as [20]

    The Introduction says RANKL recruits TRAF6 and links it to downstream ERK, p38, and JNK signaling in osteoclast precursor cells. The transcriptional-regulation section describes IκB kinases in RANKL signaling, but does not link them specifically to TRAF6; the cited passages do not establish PI3K or Akt activation or identify the cells as HSCs. The NIK-polyubiquitination clause carries a separate citation [18], so it is not assessed against this source. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • The RANKL-activated kinase cascade requires Lys63-linked TRAF-6 auto-ubiquitination and initiates transcription of AP-1, c-Fos, NF-κB, and NFATc1, the master regulator of osteoclast differentiation.

    “This cascade requires Lys63-linked TRAF-6 auto-ubiquitination [22] and initiates the transcription of activator protein-1 (AP-1), c-Fos, NF-κB, and nuclear factor of activated T cells cytoplasmic calcineurin-dependent 1 (NFATc1), the master regulator of osteoclast differentiation [20,23,24].”

    From Osteoclasts and Microgravity (2020) · cites this paper as [20]

    The Introduction says RANKL recruits TRAF6 and activates downstream pathways and transcription factors including NF-κB, c-Fos, and NFATc1. The section on transcriptional regulation identifies c-Fos as an AP-1 member, describes RANKL-induced NFATc1 expression, and calls NFATc1 a master factor. It does not say that the cascade initiates transcription of AP-1 and NF-κB; it describes their activation instead. The Lys63-linked TRAF6 auto-ubiquitination clause has its own citation [22] and is not assessed against this source. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Among genes harboring an excess of HF SNCs associated with specific facial features, we find RUNX2, EDAR, GLI3, NFATC1, SPOP, DDR2 and NELL1, possibly carrying changes in regulatory regions.

    “Among genes harboring an excess of HF SNCs associated with specific facial features, we find RUNX2, EDAR, and GLI3133, NFATC1134, SPOP135, DDR2136 and NELL1137, possibly carrying changes in regulatory regions”

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Research works printed but not linked: 1

  1. [21]Horsley V Pavlath GK NFAT: ubiquitous regulator of cell differentiation and adaptation J Cell Biol 2002 156 771 774 11877454 PMC2173310

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Authors
Kim, J. H., & Kim, N.
Affiliations
Chonnam National University (KR)
Corresponding author
Kim, Nacksung
Venue
Journal of Bone Metabolism
Published
2014
Volume
21
Issue
4
Pages
233
ISSN
  • 2287-6375 (ISSN-L)
  • 2287-7029
OpenAlex
W2132541910
Cited by
570
References
69
Citations by year
2026: 54 · 2025: 43 · 2024: 54 · 2023: 64 · 2022: 58 · 2021: 57 · 2020: 68 · 2019: 51 · 2018: 46 · 2017: 31 · 2016: 26 · 2015: 17
FWCI
2.28
Type
journal article
Language
en
Open access
Locations
  • Journal of Bone Metabolism (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc)
  • 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, osteoclastogenesis, transcriptional regulation, epigenetic regulation, DNA methylation, ubiquitination, acetylation, non-coding RNA, macrophage colony-stimulating factor, RANKL, MITF, c-fos, NF-κB, bone resorption

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