K-carrageenan stimulates pre-osteoblast proliferation and osteogenic differentiation: A potential factor for the promotion of bone regeneration?

Wei Cao, Jianfeng Jin, Gang Wu, Nathalie Bravenboer, Marco N. Helder, Janak L. Pathak, Behrouz Zandieh-Doulabi, Jolanda M.A. Hogervorst, Shingo Matsukawa, Lester C. Geonzon, Rommel G. Bacabac, Engelbert A.J.M. Schulten, Jenneke Klein-Nulend*

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Current cell-based bone tissue regeneration strategies cannot cover large bone defects. K-carrageenan is a highly hydrophilic and biocompatible seaweed-derived sulfated polysaccharide, that has been proposed as a promising candidate for tissue engineering applications. Whether κ-carrageenan can be used to enhance bone regeneration is still unclear. In this study, we aimed to investigate whether κ-carrageenan has osteogenic potential by testing its effect on pre-osteoblast proliferation and osteogenic differentiation in vitro. Treatment with κ-carrageenan (0.5 and 2 mg/mL) increased both MC3T3-E1 pre-osteoblast adhesion and spreading at 1 h. K-carrageenan (0.125–2 mg/mL) dose-dependently increased pre-osteoblast proliferation and metabolic activity, with a maximum effect at 2 mg/mL at day three. K-carrageenan (0.5 and 2 mg/mL) increased osteogenic differentiation, as shown by enhanced alkaline phosphatase activity (1.8-fold increase at 2 mg/mL) at day four, and matrix mineralization (6.2-fold increase at 2 mg/mL) at day 21. K-carrageenan enhanced osteogenic gene expression (Opn, Dmp1, and Mepe) at day 14 and 21. In conclusion, κ-carrageenan promoted MC3T3-E1 pre-osteoblast adhesion and spreading, metabolic activity, proliferation, and osteogenic differentiation, suggesting that κ-carrageenan is a potential osteogenic inductive factor for clinical application to enhance bone regeneration.

Original languageEnglish
Article number6131
Pages (from-to)1-16
Number of pages16
JournalMolecules
Volume26
Issue number20
DOIs
Publication statusPublished - 2 Oct 2021

Bibliographical note

Special Issue: Advances in Biomaterials for Drug Delivery and Tissue Regeneration.

Funding Information:
Funding: This work was granted by the China Scholarship Council (CSC, no. 201808440487 (W. Cao) and no. 201608530156 (J. Jin)). This work was also granted by Health-Holland (project no. LSHM19016, “BB”). L.C. Geonzon received financial support of JSPS KAKENHI grant no.20F20388. R.G. Bacabac was funded by DOST-PCIEERD project no. 09438, and received logistic support from the USC Research Office and Department of Physics.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Funding

Funding: This work was granted by the China Scholarship Council (CSC, no. 201808440487 (W. Cao) and no. 201608530156 (J. Jin)). This work was also granted by Health-Holland (project no. LSHM19016, “BB”). L.C. Geonzon received financial support of JSPS KAKENHI grant no.20F20388. R.G. Bacabac was funded by DOST-PCIEERD project no. 09438, and received logistic support from the USC Research Office and Department of Physics.

FundersFunder number
Department of Physics
USC Research Office
Health~HollandLSHM19016
Health~Holland
Japan Society for the Promotion of Science20F20388
Japan Society for the Promotion of Science
China Scholarship Council201608530156, 201808440487
China Scholarship Council
Philippine Council for Industry, Energy, and Emerging Technology Research and Development09438
Philippine Council for Industry, Energy, and Emerging Technology Research and Development

    Keywords

    • Bone defect
    • Bone regeneration
    • Cell proliferation
    • Cell-based bone tissue engineering
    • MC3T3-E1 pre-osteoblast
    • Osteogenic differentiation
    • κ-carrageenan

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