Engineering Three-Dimensional Vascularized Cardiac Tissues.

Area of Science:

• Biomedical Engineering
• Regenerative Medicine
• Cardiovascular Research

Background:

• Heart disease presents a significant global health burden with limited therapeutic strategies.
• Engineered three-dimensional (3D) vascularized cardiac tissues show potential for cardiac function restoration and future organ replacement.
• A critical hurdle in scaling engineered cardiac tissues is the development of integrated vascular networks for nutrient and oxygen supply.

Purpose of the Study:

• To review current state-of-the-art engineered vascular cardiac tissues.
• To discuss advancements in creating functional vascular networks within cardiac constructs.
• To explore future directions in the field of vascularized cardiac tissue engineering.

Main Methods:

• Review of seminal and recent literature on engineered vascular cardiac tissues.
• Discussion of technologies for vascular network creation, including 3D bioprinting, co-culturing hydrogels, and angiogenic factors.
• Analysis of challenges and progress in achieving functional vasculature in thick myocardial tissues.

Main Results:

• Significant progress has been made in developing engineered cardiac tissues.
• Various approaches like 3D bioprinting are being explored to create vascular networks.
• The integration of functional vasculature remains a primary obstacle for clinical translation.

Conclusions:

• Vascularized cardiac tissue engineering is rapidly advancing towards preclinical models and therapeutic applications.
• Overcoming the challenge of vascular integration is crucial for developing clinically relevant, thick engineered cardiac tissues.
• Continued research into vascularization strategies is essential for the future of cardiac repair and regeneration.