Cited by 77Bone Metabolism and DiseasesWnt/β-catenin signaling in development and cancerBone health and osteoporosis research

sFRP4-dependent Wnt signal modulation is critical for bone remodeling during postnatal development and age-related bone loss

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Haraguchi, Ryuma, Kitazawa, Riko, Mori, Kiyoshi, Tachibana, Ryosuke, Kiyonari, Hiroshi, Imai, Yuuki, Abe, Takaya, Kitazawa, Sohei·2016·Scientific Reports

Abstract

sFRP4 is an extracellular Wnt antagonist that fine-tunes its signal activity by direct binding to Wnts. Bone fragility under oxidative stress by diabetes and aging is partly related to the suppression of the Wnt signal through upregulated sFRP4. Here, to explore the functions of sFRP4 as a balancer molecule in bone development and remodeling, we analyzed the sFRP4 knock-in mouse strain. X-gal and immunohistochemically stained signals in sFRP4-LacZ heterozygous mice were detectable in restricted areas, mostly in osteoblasts and osteoclasts, of the femoral diaphysis after neonatal and postnatal stages. Histological and μCT analyses showed increased trabecular bone mass with alteration of the Wnt signal and osteogenic activity in sFRP4 mutants; this augmented the effect of the buildup of trabecular bone during the ageing period. Our results indicate that sFRP4 plays a critical role in bone development and remodeling by regulating osteoblasts and osteoclasts and that its functional loss prevents age-related bone loss in the trabecular bone area. These findings imply that sFRP4 functions as a key potential endogenous balancer of the Wnt signaling pathway by efficiently having direct influence on both bone formation and bone absorption during skeletal bone development and maintenance through remodeling.

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  • Mice lacking sFRP4 exhibit increased trabecular bone mass but reduced cortical bone thickness and failure of bone remodeling.

    “Mice lacking sFRP4 exhibit increased trabecular bone mass but reduced cortical bone thickness and failure of bone remodeling (46).”

    From Targeting myostatin/activin A protects against skeletal muscle and bone loss during spaceflight (2020) · cites this paper as [46]

    The Results section, “Bone phenotypes of sFRP4-deficient mice,” reports increased trabecular bone mass and decreased cortical thickness in sFRP4-deficient mice. It does not report a failure of bone remodeling; the Discussion instead describes altered osteoblast and osteoclast activity that enhances bone deposition during remodeling. (LLM, conf=0.90)

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Authors
Haraguchi, R., Kitazawa, R., Mori, K., Tachibana, R., Kiyonari, H., Imai, Y., Abe, T., & Kitazawa, S.
Affiliations
  • Ehime University (JP)
  • Ehime University Hospital (JP)
  • Osaka National Hospital (JP)
  • RIKEN (JP)
Corresponding author
Kitazawa, Sohei
Venue
Scientific Reports
Published
2016-04-27
Volume
6
Issue
1
Pages
25198-25198
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2342999456
Cited by
77
References
57
Citations by year
2026: 4 · 2025: 2 · 2024: 12 · 2023: 7 · 2022: 10 · 2021: 6 · 2020: 11 · 2019: 9 · 2018: 9 · 2017: 5 · 2016: 2
FWCI
4.33
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (15K08426)
  • Japan Society for the Promotion of Science (15K08426, 15H04961, 16H05161, 15K08136, 15K15552, 26670176)
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
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
Keywords
SFRP4, Wnt signaling, bone remodeling, postnatal bone development, age-related bone loss, osteoblasts, osteoclasts, trabecular bone mass, bone fragility, oxidative stress, diabetes mellitus, bone formation and resorption
MeSH terms
Cancellous Bone, Secreted Frizzled-Related Proteins, Animals, Disease Models, Animal, Osteoblasts, Osteoclasts, Osteoporosis, Proto-Oncogene Proteins, Bone Remodeling, Mice, Gene Knock-In Techniques, Wnt Signaling Pathway

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