Composite bone graft of CaO–MgO–SiO2 glass–ceramics and CaSO4 ceramics for boosting bone formation rate

Guan Yi Hung, Chi Yun Wang, Hui Yi Hsiao, Chi Shun Tu, Haidee Mana-Ay, Ching Ting Chen, Po Liang Lai*, Kuei Chih Feng*, Pin Yi Chen*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

Abstract

This study develops a composite bone graft of CaO-MgO-SiO2 glass-ceramic and CaSO4 [abbreviated as (CMS)3−x(CS)x] via the sponge replication technique with weight fractions of x = 0, 1, 1.5, 2, and 3. The (CMS)1.5(CS)1.5 composite displays a superior degradability and, a suitable compressive strength of ∼3 MPa, and excellent cell proliferation and differentiation. The in vivo rat femur test in the hybrid-pore (CMS)1.5(CS)1.5 composite granules achieves a higher rate of bone formation, which is ∼2.7 times better than that of the commercial HAP/β-TCP at 12 weeks. Improved expressions of osteocyte and mature osteocyte marker genes, namely (Spp1, Dmp1, and Fgf23), were observed in the (CMS)1.5(CS)1.5 group, indicating a faster differentiation into mature bone tissue. The ions release of (CMS)1.5(CS)1.5 through the ERK1/2 signaling pathway promotes osteogenic differentiation. The high bone generation rate can be attributed to faster active ions release and modified surface topography. This work highlights an excellent bone graft candidate for clinical applications in orthopedic surgery.

Original languageEnglish
Pages (from-to)6394-6409
Number of pages16
JournalJournal of Materials Chemistry B
Volume12
Issue number26
DOIs
StatePublished - 03 07 2024

Bibliographical note

Publisher Copyright:
© 2024 The Royal Society of Chemistry.

Keywords

  • Ceramics/chemistry
  • Animals
  • Osteogenesis/drug effects
  • Rats
  • Cell Differentiation/drug effects
  • Calcium Compounds/chemistry
  • Rats, Sprague-Dawley
  • Cell Proliferation/drug effects
  • Oxides/chemistry
  • Silicon Dioxide/chemistry
  • Male
  • Bone Substitutes/chemistry
  • Bone Transplantation/methods
  • Magnesium Oxide/chemistry
  • Surface Properties
  • Femur

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