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De novo dual functional 3D scaffold using computational simulation with controlled drug release.
Abdelrahman I Rezk1, Ju Yeon Kim1, Beom Su Kim2
1Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
This study presents a novel 3D fibrous scaffold using simvastatin (SIM) to enhance bone regeneration and blood vessel growth. The scaffold shows promise for tissue engineering applications.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Developing advanced scaffolds is crucial for tissue regeneration.
- Simvastatin (SIM) holds potential for promoting osteogenesis and angiogenesis.
- Controlling drug release within scaffolds is key for effective therapies.
Purpose of the Study:
- To synthesize and characterize a novel 3D fibrous scaffold loaded with simvastatin (SIM).
- To investigate the scaffold's potential for angiogenesis-coupled osteogenesis.
- To evaluate the effects of SIM on human mesenchymal stem cells (hMSCs) and human umbilical vein endothelial cells (HUVECs).
Main Methods:
- Fabrication of a 3D fibrous scaffold using electrospinning of poly(ɛ-caprolactone) and poly(glycerol-sebacate) with hydroxyapatite nanoparticles (HA-NPs).
- Functionalization with HA-NPs to mimic natural biomineralization.
- Computer simulation of the 3D fiber deposition mechanism.
- Assessment of scaffold properties, drug release, and in vitro biological effects on hMSCs and HUVECs.
Main Results:
- The 3D scaffold exhibited controlled simvastatin release and biomimetic mineralization.
- Simvastatin-loaded scaffolds significantly enhanced osteogenic marker expression (ALP, RUNX2, COLA1) in hMSCs.
- Simvastatin promoted HUVEC migration and tube formation, indicating enhanced angiogenesis.
Conclusions:
- The developed 3D fibrous scaffold effectively delivers simvastatin for synergistic osteogenesis and angiogenesis.
- This scaffold represents a promising platform for point-of-care tissue regeneration therapies.
- The findings support the potential of this scaffold for controlled bone regeneration applications.
