Cited by 414Bone Metabolism and DiseasesRheumatoid Arthritis Research and TherapiesImmune Response and Inflammation

Mechanistic insight into osteoclast differentiation in osteoimmunology

Takayanagi, Hiroshi·2005·Journal of Molecular Medicine

Abstract

Recently a close relationship between the immune and skeletal systems or the interdisciplinary field called osteoimmunology has attracted much attention due to the observations that bone destruction is caused by an abnormal activation of the immune system in rheumatoid arthritis, and that mice lacking immunomodulatory molecules often exhibit an unexpected bone phenotype. Osteoclasts are cells of monocyte/macrophage origin that degrade the bone matrix. They are among the key players in the control of bone metabolism in health and disease. Receptor activator of NF-kappaB ligand (RANKL), a tumor necrosis factor (TNF) family cytokine, induces the differentiation of osteoclasts in the presence of macrophage-colony stimulating factor. RANKL activates TRAF6, c-Fos, and calcium signaling pathways, all of which are indispensable for the induction and activation of nuclear factor of activated T cells (NFAT) c1, the master transcription factor for osteoclastogenesis. The autoamplification of NFATc1 gene results in the efficient induction of osteoclast-specific genes. An AP-1 transcription factor complex containing c-Fos plays a crucial role in these processes, although results in conditional knockout mice show that Jun family members have a redundant role. The immunoreceptor tyrosine-based activation motif (ITAM) is an important signaling component for a number of receptors in the immune system including T-cell, B-cell, NK-cell, and Fc receptors, but its contribution to the skeletal sys…

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Crossref · 10.1007/s00109-004-0612-6

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  • The calcineurin pathway is a key costimulatory pathway of NFATc1 and an important signaling component of a number of immune cell receptors.

    “This activates cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) and the calcineurin pathway [21,24,25,27], a key costimulatory pathway of NFATc1 [21,23] and an important signaling component of a number of immune cell receptors [28] (Figure 4 and Figure 5).”

    From Osteoclasts and Microgravity (2020) · cites this paper as [28]

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Authors
Takayanagi, H.
Affiliations
Tokyo Medical and Dental University (JP)
Corresponding author
Takayanagi, Hiroshi
Venue
Journal of Molecular Medicine
Published
2005-01-26
Volume
83
Issue
3
Pages
170-179
ISSN
  • 0946-2716 (ISSN-L)
  • 1432-1440
OpenAlex
W2124273389
Cited by
413
References
76
Citations by year
2026: 3 · 2025: 11 · 2024: 4 · 2023: 8 · 2022: 5 · 2021: 11 · 2020: 14 · 2019: 10 · 2018: 13 · 2017: 17 · 2016: 16 · 2015: 24 · 2014: 24 · 2013: 18 · 2012: 26
FWCI
3.42
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Takeda Science Foundation
  • Mitsubishi Foundation
  • Japan Society for the Promotion of Science
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
osteoclastogenesis, osteoimmunology, RANKL, TRAF6, c-fos, NFATc1, AP-1, ITAM signaling, FcRγ, DAP12, osteoclast-associated receptor, traps, TLR2, TLR4, phospholipase C-gamma, calcium signaling
MeSH terms
Animals, Carrier Proteins, Cell Differentiation, Humans, Membrane Glycoproteins, Osteoclasts, Receptors, Immunologic, Transcription Factors, Signal Transduction, RANK Ligand, Receptor Activator of Nuclear Factor-kappa B

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