Cited by 498Bone Metabolism and DiseasesBone health and osteoporosis researchMedicinal Plant Pharmacodynamics Research

Suppression of bone formation by osteoclastic expression of semaphorin 4D

Negishi-Koga, Takako, Shinohara, Masahiro, Komatsu, Noriko, Bito, Haruhiko, Kodama, Tatsuhiko, Friedel, Roland H, Takayanagi, Hiroshi·2011·Nature Medicine

Abstract

Most of the currently available drugs for osteoporosis inhibit osteoclastic bone resorption; only a few drugs promote osteoblastic bone formation. It is thus becoming increasingly necessary to identify the factors that regulate bone formation. We found that osteoclasts express semaphorin 4D (Sema4D), previously shown to be an axon guidance molecule, which potently inhibits bone formation. The binding of Sema4D to its receptor Plexin-B1 on osteoblasts resulted in the activation of the small GTPase RhoA, which inhibits bone formation by suppressing insulin-like growth factor-1 (IGF-1) signaling and by modulating osteoblast motility. Sema4d-/- mice, Plxnb1-/- mice and mice expressing a dominant-negative RhoA specifically in osteoblasts showed an osteosclerotic phenotype due to augmented bone formation. Notably, Sema4D-specific antibody treatment markedly prevented bone loss in a model of postmenopausal osteoporosis. Thus, Sema4D has emerged as a new therapeutic target for the discovery and development of bone-increasing drugs.

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Crossref · 10.1038/nm.2489

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  • Plexin-B1 has important roles in immune system activation and bone homeostasis in adult physiology.

    “However Plexin-B1 has importance roles in immune system activation and bone homeostasis in adult physiology23–25”
  • Osteoclasts suppress bone formation by expressing Sema4D.

    “Sema4D expressed in osteoclasts binds to its receptor (Plexin-B1) present in osteoblasts and inhibits IGF-1 pathway, essential for osteoblast differentiation [172], suggesting that osteoclasts suppress bone formation by expressing Sema4D.”
  • Semaphorins are a large family of glycoproteins, membrane-bound and soluble, found in a wide range of tissues, involved in immune response, organogenesis, cardiovascular development, and tumor progression.

    “Semaphorins comprise a large family of glycoproteins which are not only membrane-bound but also exist as soluble forms that are found in a wide range of tissues and shown to be involved in diverse biological processes such as immune response, organogenesis, cardiovascular development, and tumor progression [172, 173].”
  • Sema4D expressed in osteoclasts binds to Plexin-B1 on osteoblasts and inhibits IGF-1 pathway essential for osteoblast differentiation.

    “Sema4D expressed in osteoclasts binds to its receptor (Plexin-B1) present in osteoblasts and inhibits IGF-1 pathway, essential for osteoblast differentiation [172], suggesting that osteoclasts suppress bone formation by expressing Sema4D.”
  • Osteoclasts express Sema4D, which inhibits bone formation during bone resorption.

    “The osteoclasts express a factor called semaphorin4D (Sema4D) that inhibits bone formation during bone resorption [172].”

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Authors
Negishi-Koga, T., Shinohara, M., Komatsu, N., Bito, H., Kodama, T., Friedel, R. H., & Takayanagi, H.
Affiliations
  • Tokyo Medical and Dental University (JP)
  • The University of Tokyo (JP)
  • Research Center for Advanced Science and Technology, The University of Tokyo (JP)
  • Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Takayanagi, Hiroshi
Venue
Nature Medicine
Published
2011-10-23
Volume
17
Issue
11
Pages
1473-1480
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2157222066
Cited by
498
References
55
Citations by year
2026: 15 · 2025: 28 · 2024: 26 · 2023: 28 · 2022: 39 · 2021: 36 · 2020: 44 · 2019: 36 · 2018: 36 · 2017: 30 · 2016: 40 · 2015: 39 · 2014: 40 · 2013: 29 · 2012: 26
FWCI
13.10
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (22689048, 20670002, 23659149)
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 › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Medicinal Plant Pharmacodynamics Research
Keywords
Sema4D, osteoclasts, osteogenic differentiation, bone formation, osteoporosis, postmenopausal osteoporosis, Plexin-B1, RhoA, IGF-1 signaling, osteosclerosis, bone loss
MeSH terms
Animals, Antibodies, Bone Resorption, Cell Differentiation, Cell Movement, Cells, Cultured, Female, Femur, Humans, Mice, Inbred C57BL, Nerve Tissue Proteins, Osteoclasts, Osteogenesis, Osteoporosis, Receptors, Cell Surface, Signal Transduction, Antigens, CD, Mice, Knockout, rhoA GTP-Binding Protein, Semaphorins, Mice

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