Influence of Structure-Property Relationships of Polymeric Biomaterials for Engineering Multicellular Spheroids

Area of Science:

• Biomaterials Science
• Cell Biology
• Tissue Engineering

Background:

• Two-dimensional (2D) cell cultures fail to replicate the complex in vivo microenvironment.
• Multicellular spheroids (MCSs) provide a 3D architecture mimicking native cell-cell and cell-matrix interactions.
• MCSs are crucial for cancer research, tissue engineering, and drug discovery.

Purpose of the Study:

• To review the structure-property relationships of polymeric biomaterials influencing MCS formation, growth, and functionality.
• To highlight how physicochemical properties of natural and synthetic polymers impact MCS development.
• To discuss challenges and future directions in MCS platform development.

Main Methods:

• Review of literature on polymeric biomaterials for 3D cell culture.
• Analysis of natural polymers (collagen, hyaluronic acid, chitosan) and synthetic polymers (PLGA, PNIPAM).
• Focus on structure-property relationships governing MCS formation and function.

Main Results:

• Polymeric materials (hydrogels, scaffolds, ultra-low attachment surfaces) are versatile platforms for MCS culture.
• Physicochemical properties of polymers critically influence spheroid formation and cellular organization.
• Examples of natural and synthetic polymers demonstrate tailored support for MCSs.

Conclusions:

• Polymeric biomaterials are essential for developing advanced MCS platforms.
• Overcoming challenges like spheroid stability, long-term viability, and scalability is vital.
• Innovative materials and methods will enhance MCS utility in biomedical research and support the 3R principles for ethical testing.