Engineering 3D Hydrogels for Personalized In Vitro Human Tissue Models

Area of Science:

• Biomaterials Engineering
• Tissue Engineering
• Regenerative Medicine

Background:

• Growing interest in engineering hydrogels for 3D tissue and disease models.
• Need for biomimetic platforms to replicate physiological microenvironments.
• Potential of patient-derived 3D tissue models for revolutionizing diagnostics and therapeutics.

Purpose of the Study:

• To provide a comprehensive review of 3D hydrogel platforms for in vitro tissue and disease modeling.
• To summarize hydrogel design considerations and available systems.
• To focus on hydrogel applications in liver and cancer models, addressing current challenges and future perspectives.

Main Methods:

• Review of recent literature on hydrogel-based tissue and disease models.
• Categorization of hydrogel platforms including bulk, scaffolds, microspheres, microwells, and bioprinted constructs.
• Detailed analysis of hydrogel design, properties, and applications, with emphasis on liver and cancer models.

Main Results:

• Summary of various 3D hydrogel architectures (scaffolds, microspheres, bioprinted constructs, etc.).
• Discussion of hydrogel design considerations for mimicking native tissue environments.
• Focus on specific applications in liver and cancer modeling, highlighting their utility.

Conclusions:

• Hydrogel-based 3D models are essential for advancing in vitro disease modeling and drug development.
• Continued innovation in hydrogel design and fabrication is needed to overcome current limitations.
• Future perspectives include enhanced biomimicry and broader clinical translation for patient-specific therapies.