Novel Compound-Forming Technology Using Bioprinting and Electrospinning for Patterning a 3D Scaffold Construct with...

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Efficient oxygen and nutrient delivery to cells within 3D engineered scaffolds remains a significant challenge in tissue engineering.
• Achieving adequate vascularization is critical for the success of engineered tissue constructs.
• Novel methods are required to enhance vascularization in tissue engineering applications.

Purpose of the Study:

• To develop a novel method for creating biocompatible and biodegradable patterned hydrogel structures with 3D multiscale channels.
• To evaluate the efficacy of these engineered constructs for promoting vascularization using human umbilical vein endothelial cells (HUVECs).

Main Methods:

• Fabrication of a biological structure with 3D multiscale channels using gelatin-based hydrogel via bioprinting and electrospinning.
• Culturing of human umbilical vein endothelial cells (HUVECs) within the engineered channels in vitro.
• Assessment of HUVEC viability and diffusion on different engineered construct designs.

Main Results:

• The gelatin-based hydrogel structures with 3D multiscale channels were successfully fabricated.
• Human umbilical vein endothelial cells (HUVECs) exhibited high viability and demonstrated diffusion within the construct.
• The engineered constructs supported cell growth and integration, indicating potential for vascularization.

Conclusions:

• The developed method provides a practical platform for fabricating engineered constructs with enhanced vascularization capabilities.
• This approach holds promise for advancing tissue engineering by addressing critical challenges in nutrient and oxygen supply.
• The use of biocompatible hydrogels and 3D multiscale channels offers a viable strategy for creating functional engineered tissues.