Bioprinting Technologies in Tissue Engineering.

Area of Science:

• Biomedical Engineering
• Tissue Engineering
• Regenerative Medicine

Background:

• Bioprinting utilizes cells, bioinks, and growth factors on computer-controlled platforms to create functional tissues and organs.
• Significant progress has been made in bioprinting various soft tissues, including nerve, skin, cardiac, bone, and cartilage.

Purpose of the Study:

• To review recent advancements in bioprinting for diverse tissue types.
• To identify key challenges and successful applications in tissue engineering.

Main Methods:

• Utilizing composite bioinks and patient-specific, ceramic-based scaffolds for bone regeneration.
• Employing alginate- and gelatin-based bioinks for nerve tissue engineering.
• Investigating extracellular matrix-derived bioinks for cardiac regeneration.

Main Results:

• Successful clinical and preclinical bone regeneration using tailored scaffolds.
• Demonstrated cytocompatibility and axonal regeneration in nerve tissue engineering.
• Extracellular matrix bioinks show promise for cardiac regeneration, outperforming traditional biopolymers.

Conclusions:

• Bioprinting shows significant potential for regenerating bone, nerve, and cardiac tissues.
• Challenges in osteochondral scaffold bioprinting are being addressed by focusing on vascularization and hierarchical structures.
• Bioprinting holds promise for regenerating cornea, liver, and urinary bladder tissues.