Advanced 3D Platforms for Modeling CNS Neuroinflammation: Cell Integration, Techniques, and Challenges.

Area of Science:

• Neuroscience
• Immunology
• Biotechnology

Background:

• Neuroinflammation, a CNS immune response, is crucial in neurodegenerative diseases and CNS damage.
• Three-dimensional (3D) cell cultures offer superior capabilities over 2D models for studying complex biological systems.
• Current 3D models face challenges in cell survival, CNS cellular diversity, immune response simulation, scalability, and long-term culture.

Purpose of the Study:

• To review state-of-the-art methods for creating 3D CNS models for neuroinflammation research.
• To explore emerging trends in bioengineering and co-culture strategies for improved model development.
• To guide researchers in selecting effective methodologies for physiologically relevant in vitro models.

Main Methods:

• Incorporation of diverse CNS cell types (neurons, astrocytes, microglia, oligodendrocytes) into 3D models.
• Examination of bioengineering advancements, co-culture techniques, and dynamic systems.
• Critical evaluation of established and innovative protocols for 3D neuroinflammation models.

Main Results:

• 3D models show promise for recapitulating CNS cellular diversity and simulating immune responses.
• Emerging trends focus on enhancing scalability, longevity, and physiological relevance of models.
• Advancements in bioengineering and co-culture strategies are key to overcoming current limitations.

Conclusions:

• Developing advanced 3D models is essential for accurate neuroinflammation research.
• Addressing challenges in cell survival, diversity, and scalability is critical for model efficacy.
• This review provides a framework for selecting and advancing 3D in vitro models for studying neuroinflammation and related CNS disorders.