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 language | English |
|---|---|
| Article number | 6131 |
| Pages (from-to) | 1-16 |
| Number of pages | 16 |
| Journal | Molecules |
| Volume | 26 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 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.
| Funders | Funder number |
|---|---|
| Department of Physics | |
| USC Research Office | |
| Health~Holland | LSHM19016 |
| Health~Holland | |
| Japan Society for the Promotion of Science | 20F20388 |
| Japan Society for the Promotion of Science | |
| China Scholarship Council | 201608530156, 201808440487 |
| China Scholarship Council | |
| Philippine Council for Industry, Energy, and Emerging Technology Research and Development | 09438 |
| 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