Cited by 190Bone Metabolism and DiseasesBone health and osteoporosis researchAlkaline Phosphatase Research Studies

Cardiotrophin-1 Is an Osteoclast-Derived Stimulus of Bone Formation Required for Normal Bone Remodeling

Walker, Emma C, McGregor, Narelle E, Poulton, Ingrid J, Pompolo, Sueli, Allan, Elizabeth H, Quinn, Julian MW, Gillespie, Matthew T, Martin, T John +1 more·2008·Journal of Bone and Mineral Research

Abstract

Cardiotrophin (CT-1) signals through gp130 and the LIF receptor (LIFR) and plays a major role in cardiac, neurological, and liver biology. We report here that CT-1 is also expressed within bone in osteoclasts and that CT-1 is capable of increasing osteoblast activity and mineralization both in vitro and in vivo. Furthermore, CT-1 stimulated CAAT/enhancer-binding protein-δ (C/EBPδ) expression and runt-related transcription factor 2 (runx2) activation. In neonate CT-1−/− mice, we detected low bone mass associated with reduced osteoblasts and many large osteoclasts, but increased cartilage remnants within the bone, suggesting impaired resorption. Cultured bone marrow (BM) from CT-1−/− mice generated many oversized osteoclasts and mineralized poorly compared with wildtype BM. As the CT-1−/− mice aged, the reduced osteoblast surface (ObS/BS) was no longer detected, but impaired bone resorption continued resulting in an osteopetrotic phenotype in adult bone. CT-1 may now be classed as an essential osteoclast-derived stimulus of both bone formation and resorption.

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Crossref · 10.1359/jbmr.080706

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40 of 40 references verified0 citation errors · 0 not checkable

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  • Several osteoclast-derived factors released into the BRC have been identified and validated in genetically modified mouse models: CT-1, S1P, Wnt10B, BMP6, CTHRC1, C3a, and LIF.

    “Several osteoclast-derived factors released into the BRC have been identified and validated in genetically modified mouse models. These factors include cardiotrophin-1 (CT-1),228 S1P,229 Wnt10B, BMP6,230 collagen triple helix repeat-containing 1 (CTHRC1),231 complement factor 3a (C3a),232 and leukemia inhibitory factor (LIF).233”

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Authors
Walker, E. C., McGregor, N. E., Poulton, I. J., Pompolo, S., Allan, E. H., Quinn, J. M., Gillespie, M. T., Martin, T. J., & Sims, N. A.
Affiliations
  • St Vincents Institute of Medical Research (AU)
  • The University of Melbourne (AU)
Corresponding author
Sims, Natalie A
Venue
Journal of Bone and Mineral Research
Published
2008-12-01
Volume
23
Issue
12
Pages
2025-2032
ISSN
  • 0884-0431 (ISSN-L)
  • 1523-4681
OpenAlex
W2044726772
Cited by
190
References
40
Citations by year
2026: 6 · 2025: 4 · 2024: 10 · 2023: 1 · 2022: 12 · 2021: 16 · 2020: 19 · 2019: 11 · 2018: 8 · 2017: 14 · 2016: 6 · 2015: 13 · 2014: 16 · 2013: 8 · 2012: 15
FWCI
4.25
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Bone and Mineral Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Health and Medical Research Council
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
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Alkaline Phosphatase Research Studies
Keywords
cardiotrophin-1, osteoclasts, bone remodeling, bone formation, bone resorption, osteoblast activity, mineralization, C/EBPδ, Runx2, gp130, LIF receptor, osteopenia, bone marrow
MeSH terms
Animals, Bone and Bones, Bone Marrow, Bone Resorption, Female, Male, Mice, Inbred C57BL, Mice, Transgenic, Osteoblasts, Osteoclasts, Transcription Factors, Cytokines, Bone Remodeling, Mice, CCAAT-Enhancer-Binding Protein-delta

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