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Updated: Apr 3, 2026
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Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration
Published on: June 16, 2015
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Smooth muscle tissue engineering in crosslinked electrospun gelatin scaffolds
Yahya Elsayed1, Constantina Lekakou1, Fatima Labeed2
1Advanced Materials Group, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
Journal of Biomedical Materials Research. Part A
|September 18, 2015
Summary
This study engineered vascular grafts using electrospun gelatin scaffolds to grow human umbilical vein smooth muscle cells (HUVSMCs). Dynamic bioreactor conditions significantly enhanced HUVSMC proliferation and tissue formation compared to static culture.
Area of Science:
- Biomaterials Engineering
- Tissue Engineering
- Vascular Grafts
Background:
- Vascular tissue engineering aims to create functional grafts for cardiovascular repair.
- Electrospun gelatin scaffolds offer a promising platform for cell growth and tissue regeneration.
Purpose of the Study:
- To evaluate multi-layer electrospun gelatin scaffolds for human umbilical vein smooth muscle cell (HUVSMC) growth.
- To compare static and dynamic culture conditions for vascular tissue development.
Main Methods:
- Fabrication of crosslinked, multi-layer electrospun gelatin scaffolds with specific fiber orientations.
- Assessment of scaffold properties including fiber diameter, pore size, and porosity.
- Culturing HUVSMCs on scaffolds under static and dynamic (bioreactor) conditions.
- Evaluation of cell adherence, viability, proliferation, and migration.
Main Results:
- High HUVSMC viability (80-92%) and adherence observed on scaffolds after 9 days under static conditions.
- HUVSMCs migrated through scaffold thickness (200-235 μm) and aligned with fiber direction.
- Dynamic culture conditions in a bioreactor nearly doubled the rate of HUVSMC proliferation.
- Full tissue formation achieved within 6 days in 250-300 μm thick scaffolds under dynamic conditions.
Conclusions:
- Electrospun gelatin scaffolds support HUVSMC growth, adherence, and migration for vascular tissue engineering.
- Dynamic bioreactor culture significantly enhances cell proliferation and accelerates tissue formation for vascular graft applications.
