Cited by 86Bone Metabolism and DiseasesWnt/β-catenin signaling in development and cancerTGF-β signaling in diseases

TGF-β Induces Wnt10b in Osteoclasts From Female Mice to Enhance Coupling to Osteoblasts

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Ota, Kuniaki, Quint, Patrick, Ruan, Ming, Pederson, Larry, Westendorf, Jennifer J., Khosla, Sundeep, Oursler, Merry Jo·2013·Endocrinology

Abstract

In young adults, bone lost through osteoclast-mediated resorption is precisely replaced in both location and amount. Understanding how these two processes are coupled is crucial to advancing treatments for osteoporosis, a disease that progresses when the processes become uncoupled. We documented that osteoclasts secrete the mammalian integration 1 gene that is the homolog of Drosophila Wngless (Wnt) 10b, bone morphogenetic protein 6 (BMP6), and the chemokine sphingosin 1 phosphate (S1P) to promote mesenchymal cell mineralization in vitro. During bone resorption, TGF-β1 is released from the bone extracellular matrix and activated by osteoclasts. Thus, TGF-β1 levels are elevated during the resorption phase of bone turnover. We therefore investigated the influences of TGF-β1 on osteoclast-mediated support of mineralization. TGF-β1 increased osteoclast production of Wnt10b, but not BMP6 or S1P. Blocking Wnt10b activity with the Wnt signaling inhibitor Dickkoph-related protein 1 suppressed the ability of TGF-β–treated osteoclast-conditioned media to promote osteoblast mineralization. Examination of TGF-β signaling in osteoclasts revealed that induction of Wnt10b expression was dependent on Smad2/3 activation and independent from TGF-β1 stimulation of protein kinase B (AKT) or MAPK kinase. TGF-β1–treated osteoclast-conditioned media from cells with blocked Smad signaling exhibited a reduced ability to support mineralization, demonstrating the importance of Smad signaling in this response. Parallel cultures with suppressed TGF-β activation of AKT or MAPK kinase signaling retained their ability to elevate mineralization. These results demonstrate that TGF-β1 stimulates Wnt10b production in osteoclasts, which may enhance restoration of the bone lost during the resorptive phase of bone turnover.

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  • TGF-β1 has a dual effect on osteoblasts by directly recruiting their progenitors to the bone surface and indirectly promoting matrix mineralization through osteoclast-derived Wnt10b.

    “TGF-β1 therefore has a dual effect on osteoblasts by directly recruiting their progenitors to the bone surface and by indirectly promoting matrix mineralization through osteoclast-derived Wnt10b.211”
  • TGF-β1 release enhances Wnt10b expression and secretion to stimulate osteoblast-directed mineralization.

    “Indeed, TGF-β1 release enhances Wnt10b expression and secretion to stimulate osteoblast-directed mineralization.”

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Authors
Ota, K., Quint, P., Ruan, M., Pederson, L., Westendorf, J. J., Khosla, S., & Oursler, M. J.
Affiliations
Mayo Clinic (US)
Corresponding author
Oursler, Merry Jo
Venue
Endocrinology
Published
2013-10-01
Volume
154
Issue
10
Pages
3745-3752
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2036508612
Cited by
86
References
34
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 12 · 2021: 10 · 2020: 5 · 2019: 7 · 2018: 4 · 2017: 7 · 2016: 9 · 2015: 9 · 2014: 4 · 2013: 1
FWCI
3.44
Type
journal article
Language
en
Open access
Locations
  • Endocrinology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Mayo Foundation for Medical Education and Research
  • National Institutes of Health (DK07352, AG004875)
  • National Institute on Aging (P01AG004875)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-07352, T32DK007352)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
Keywords
TGF-β1, Wnt10b, osteoclasts, osteoblast mineralization, bone remodeling, bone resorption, Smad2/3 signaling, Dickkopf-related protein 1, BMP6, sphingosine-1-phosphate, osteoporosis, bone turnover
MeSH terms
Animals, Animals, Newborn, Calcification, Physiologic, Cell Communication, Cells, Cultured, Female, Gene Expression Regulation, Lysophospholipids, Mice, Inbred C57BL, Osteoblasts, Osteoclasts, RNA, Messenger, Sphingosine, Signal Transduction, Culture Media, Conditioned, Intercellular Signaling Peptides and Proteins, Wnt Proteins, Mice, Smad Proteins, Receptor-Regulated, Transforming Growth Factor beta1, Bone Morphogenetic Protein 6

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