Cited by 15Bone Metabolism and DiseasesDevelopmental Biology and Gene RegulationMedicinal Plant Pharmacodynamics Research

RANKL, Ephrin-Eph and Wnt10b are key intercellular communication molecules regulating bone remodeling in autologous transplanted goldfish scales

Tazaki, Yuya, Sugitani, Kayo, Ogai, Kazuhiro, Kobayashi, Isao, Kawasaki, Haruki, Aoyama, Takafumi, Suzuki, Nobuo, Tabuchi, Yoshiaki +2 more·2018·Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology

Abstract

This study aimed to investigate the precise data of gene expression, functions, and chronological relationships amongst communication molecules involved in the bone remodeling process with an in vivo model using autologous transplanted scales of goldfish. Autotransplantation of methanol-fixed cell-free scales triggers scale resorption and regeneration, as well as helps elucidate the process of bone remodeling. We investigated osteoclastic markers, osteoblastic markers, and gene expressions of communicating molecules (RANKL, ephrinB2, EphB4, EphA4, Wnt10b) by qPCR, in situ hybridization for Wnt10b, and immunohistochemistry for EphrinB2 and EphA4 proteins to elucidate the bone remodeling process. Furthermore, functional inhibition experiments for the signaling of ephrinB2/Eph, ephrin/EphA4, and Wnt10b using specific antibodies, revealed that these proteins are involved in key signaling pathways promoting normal bone remodeling. Our data suggests that the remodeling process comprises of two successive phases. In the first absorption phase, differentiation of osteoclast progenitors by RANKL is followed by the bone absorption by mature, active osteoclasts, with the simultaneous induction of osteoblast progenitors by multinucleated osteoclast-derived Wnt10b, and proliferation of osteoblast precursors by ehprinB2/EphB4 signaling. Subsequently, during the second formation phase, termination of bone resorption by synergistic cooperation occurs, with downregulation of RANKL expression in activated osteoblasts and Ephrin/EphA4-mediated mutual inhibition between neighboring multinucleated osteoclasts, along with simultaneous activation of osteoblasts via forward and reverse EphrinB2/EphB4 signaling between neighboring osteoblasts. In addition, the present study shows that autologous transplantation of methanol-fixed cell-free scale is an ideal in vivo model to study bone remodeling.

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Crossref · 10.1016/j.cbpa.2018.06.011

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  • EphrinB2-EphB4 bidirectional signaling must function locally and requires direct cell-cell contact since both receptors are anchored to the cell membrane, as shown with a goldfish scale model of bone remodeling.

    “EphrinB2–EphB4 bidirectional signaling must function locally and requires direct cell‐cell contact since both receptors are anchored to the cell membrane, as shown with goldfish scale model of bone remodeling.252”

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Authors
Tazaki, Y., Sugitani, K., Ogai, K., Kobayashi, I., Kawasaki, H., Aoyama, T., Suzuki, N., Tabuchi, Y., Hattori, A., & Kitamura, K.-I.
Affiliations
  • Kanazawa University (JP)
  • University of Toyama (JP)
  • Tokyo Medical and Dental University (JP)
Corresponding author
Kitamura, Kei-ichiro
Venue
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology
Publisher
Elsevier BV
Published
2018-11
Volume
225
Pages
46-58
ISSN
1095-6433 (ISSN-L)
OpenAlex
W2808520997
Cited by
15
References
31
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 3 · 2021: 3 · 2020: 3
FWCI
0.53
Type
journal article
Language
en
Open access
closed
Locations
  • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
JSPS (15K01705, 17K01353, 16K07871)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Medicinal Plant Pharmacodynamics Research
Keywords
bone remodeling, autologous transplantation, RANKL, EphA4, Wnt10b, osteoclasts, osteoblasts, bone resorption, bone regeneration, intercellular communication
MeSH terms
Animal Scales, Animals, Cell Communication, Goldfish, Osteoblasts, Osteoclasts, Blotting, Western, Bone Remodeling, Fish Proteins, Ephrins, Wnt Proteins, RANK Ligand

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