Cited by 295Bone Metabolism and DiseasesWnt/β-catenin signaling in development and cancerAlkaline Phosphatase Research Studies

Wnt signaling and cellular metabolism in osteoblasts

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Karner, Courtney M., Long, Fanxin·2017·Cellular and Molecular Life Sciences

Abstract

The adult human skeleton is a multifunctional organ undergoing continuous remodeling. Homeostasis of bone mass in a healthy adult requires an exquisite balance between bone resorption by osteoclasts and bone formation by osteoblasts; disturbance of such balance is the root cause for various bone disorders including osteoporosis. To develop effective and safe therapeutics to modulate bone formation, it is essential to elucidate the molecular mechanisms governing osteoblast differentiation and activity. Due to their specialized function in collagen synthesis and secretion, osteoblasts are expected to consume large amounts of nutrients. However, studies of bioenergetics and building blocks in osteoblasts have been lagging behind those of growth factors and transcription factors. Genetic studies in both humans and mice over the past 15 years have established Wnt signaling as a critical mechanism for stimulating osteoblast differentiation and activity. Importantly, recent studies have uncovered that Wnt signaling directly reprograms cellular metabolism by stimulating aerobic glycolysis, glutamine catabolism as well as fatty acid oxidation in osteoblast-lineage cells. Such findings therefore reveal an important regulatory axis between bone anabolic signals and cellular bioenergetics. A comprehensive understanding of osteoblast metabolism and its regulation is likely to reveal molecular targets for novel bone therapies.

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Crossref · 10.1007/s00018-016-2425-5

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  • Wnt proteins bind to Frizzled receptors and LRP5/6 coreceptors to promote stabilization of β-catenin in the cytoplasm, which translocates to the nucleus and induces expression of osteogenesis-related genes.

    “Wnt proteins bind to their receptors (Frizzled) and coreceptors (LRP5/6) to promote the stabilization of β-catenin in the cytoplasm, which translocates to the nucleus, where it induces the expression of osteogenesis-related genes.38,39”

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Research works printed but not linked: 6

  1. [106]Esen E WNT-LRP5 signaling induces Warburg effect through mTORC2 activation during osteoblast differentiation Cell metabolism 2013 17 5 745 55 23623748 PMC3653292
  2. [108]Chen J mTORC2 signaling promotes skeletal growth and bone formation in mice J Bone Miner Res 2015 30 2 369 78 25196701 PMC4322759
  3. [109]Regan JN Up-regulation of glycolytic metabolism is required for HIF1alphadriven bone formation Proc Natl Acad Sci U S A 2014 111 23 8673 8 24912186 PMC4060724
  4. [135]Karner CM Increased glutamine catabolism mediates bone anabolism in response to WNT signaling J Clin Invest 2015 125 2 551 62 25562323 PMC4319407
  5. [138]Chen J WNT7B promotes bone formation in part through mTORC1 PLoS Genet 2014 10 1 e1004145 24497849 PMC3907335
  6. [148]Stegen S HIF-1alpha Promotes Glutamine-Mediated Redox Homeostasis and Glycogen-Dependent Bioenergetics to Support Postimplantation Bone Cell Survival Cell Metab 2016 23 2 265 79 26863487 PMC7611069

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Authors
Karner, C. M., & Long, F.
Affiliations
  • Duke University (US)
  • Washington University in St. Louis (US)
Corresponding author
Long, Fanxin
Venue
Cellular and Molecular Life Sciences
Published
2016-11-26
Volume
74
Issue
9
Pages
1649-1657
ISSN
  • 1420-682X (ISSN-L)
  • 1420-9071
OpenAlex
W2552658430
Cited by
295
References
151
Citations by year
2026: 19 · 2025: 19 · 2024: 39 · 2023: 35 · 2022: 39 · 2021: 36 · 2020: 46 · 2019: 27 · 2018: 19 · 2017: 14
FWCI
1.81
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Life Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR060456, AR060674)
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 › Endocrinology, Diabetes and Metabolism › Alkaline Phosphatase Research Studies
Keywords
Wnt signaling, osteoblasts, cellular metabolism, osteogenic differentiation, bone formation, bone remodeling, aerobic glycolysis, glutamine catabolism, fatty acid oxidation, bioenergetics, osteoporosis, bone anabolic therapy
MeSH terms
Animals, Bone and Bones, Humans, Models, Biological, Osteoblasts, Signal Transduction, Wnt Proteins, Wnt Signaling Pathway

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