Enhanced bone regeneration via multimodal actions of synthetic peptide SVVYGLR on osteoprogenitors and osteoclasts

Hiroshi Egusa, Yoshitoshi Kaneda, Yoshihiro Akashi, Yoshinosuke Hamada, Takuya Matsumoto, Makio Saeki, Devang K. Thakor, Yasuhiko Tabata, Nariaki Matsuura, Hirofumi Yatani

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Recently, the binding sequence Ser-Val-Val-Tyr-Gly-Leu-Arg (SVVYGLR) was found adjacent to the RGD sequence in osteopontin, suggesting involvement in osteo-immune cross-talk. The aim of this study was to investigate bioactive functions of a synthetic SVVYGLR peptide in osteoprogenitor cells and osteoclasts, and to examine potential applications in bone regeneration. The SVVYGLR peptide significantly enhanced the adhesion and proliferation of several human mesenchymal cells including bone marrow-derived mesenchymal stem cells, and αvβ3 integrin was involved in cell attachment to the peptide. Additionally, the peptide reduced the number of TRAP-positive multinucleated cells during osteoclastogenesis of RAW264.7 cells and normal murine pre-osteoclasts, and also suppressed NFAT activity and expression of osteoclastogenesis-related mRNAs. When standardized bone defects in rat calvariae were filled with a collagen sponge containing the peptide or PBS (control), the number of TRAP-positive osteoclasts in the grafted sites after 3 weeks was significantly lower in the peptide group. By the 5th week, significantly enhanced resorption of the grafted collagen sponge and new bone formation was observed within and surrounding the sponge in the peptide group. These data suggest that SVVYGLR is an effective bioactive peptide for bone tissue regeneration that promotes attachment and proliferation of osteogenic cells while also suppressing osteoclastogenesis.

Original languageEnglish
Pages (from-to)4676-4686
Number of pages11
JournalBiomaterials
Volume30
Issue number27
DOIs
Publication statusPublished - Sep 1 2009
Externally publishedYes

Keywords

  • Bone regeneration
  • Mesenchymal stem cells
  • Osteoclasts
  • Peptide
  • SVVYGLR

ASJC Scopus subject areas

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

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  • Cite this

    Egusa, H., Kaneda, Y., Akashi, Y., Hamada, Y., Matsumoto, T., Saeki, M., Thakor, D. K., Tabata, Y., Matsuura, N., & Yatani, H. (2009). Enhanced bone regeneration via multimodal actions of synthetic peptide SVVYGLR on osteoprogenitors and osteoclasts. Biomaterials, 30(27), 4676-4686. https://doi.org/10.1016/j.biomaterials.2009.05.032