Cited by 86Bone Metabolism and DiseasesBone health and osteoporosis researchWnt/β-catenin signaling in development and cancer

TGFβ-induced degradation of TRAF3 in mesenchymal progenitor cells causes age-related osteoporosis

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Li, Jinbo, Ayoub, Akram, Xiu, Yan, Yin, Xiaoxiang, Sanders, James O., Mesfin, Addisu, Xing, Lianping, Yao, Zhenqiang +1 more·2019·Nature Communications

Abstract

Inflammaging induces osteoporosis by promoting bone destruction and inhibiting bone formation. TRAF3 limits bone destruction by inhibiting RANKL-induced NF-κB signaling in osteoclast precursors. However, the role of TRAF3 in mesenchymal progenitor cells (MPCs) is unknown. Mice with TRAF3 deleted in MPCs develop early onset osteoporosis due to reduced bone formation and enhanced bone destruction. In young mice TRAF3 prevents β-catenin degradation in MPCs and maintains osteoblast formation. However, TRAF3 protein levels decrease in murine and human bone samples during aging when TGFβ1 is released from resorbing bone. TGFβ1 induces degradation of TRAF3 in murine MPCs and inhibits osteoblast formation through GSK-3β-mediated degradation of β-catenin. Thus, TRAF3 positively regulates MPC differentiation into osteoblasts. TRAF3 deletion in MPCs activated NF-κB RelA and RelB to promote RANKL expression and enhance bone destruction. We conclude that pharmacologic stabilization of TRAF3 during aging could treat/prevent age-related osteoporosis by inhibiting bone destruction and promoting bone formation.

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Authors
Li, J., Ayoub, A., Xiu, Y., Yin, X., Sanders, J. O., Mesfin, A., Xing, L., Yao, Z., & Boyce, B. F.
Affiliations
  • University of Rochester Medicine (US)
  • University of Iowa (US)
  • Henan University (CN)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
  • Yao, Zhenqiang
  • Boyce, Brendan F.
Venue
Nature Communications
Published
2019-06-26
Volume
10
Issue
1
Pages
2795-2795
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2953401387
Cited by
86
References
70
Citations by year
2026: 7 · 2025: 11 · 2024: 17 · 2023: 8 · 2022: 11 · 2021: 13 · 2020: 18 · 2019: 1
FWCI
3.56
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Institutes of Health (AR069655)
  • National Institute on Aging (R01AG049994)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR069655, R01 AR43510, AR063650, R01AR063650, R01AR043510, P30AR069655)
  • National Center for Research Resources (S10RR027340)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
Keywords
TRAF3, TGF-β1, senile osteoporosis, mesenchymal progenitor cells, β-catenin degradation, GSK3β, osteogenic differentiation, NF-κB signaling, RANKL, osteoclastogenesis, bone destruction, bone formation, inflammaging
MeSH terms
Aging, Animals, Cell Differentiation, Female, Male, Mice, Inbred C57BL, Osteoblasts, Osteoporosis, Transforming Growth Factor beta, Mice, Knockout, TNF Receptor-Associated Factor 3, Mice, Mesenchymal Stem Cells

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