Bioprinting Neural Systems to Model Central Nervous System Diseases.

Area of Science:

• Neuroscience
• Biotechnology
• Biomedical Engineering

Background:

• Current pharmaceutical progress in central nervous system (CNS) diseases is hindered by inadequate disease models.
• Animal models fail to accurately replicate human neurodegenerative processes.
• Traditional 2D in vitro cell cultures lack the in vivo complexity of neural systems.

Purpose of the Study:

• To review challenges and advancements in in vitro 3D modeling for CNS diseases.
• To highlight the role of bioprinting in creating controlled 3D neural microenvironments.
• To discuss material selection and biofabrication techniques for simulating brain parameters.

Main Methods:

• Focus on bioprinting approaches for positional control in 3D microenvironment generation.
• Evaluation of biomaterials for simulating the brain's extracellular matrix (ECM).
• Analysis of biofabrication technologies for cellular component arrangement.

Main Results:

• 3D cultures can recreate in vivo microenvironments with cell-cell and cell-ECM interactions.
• Bioprinting enables precise control over the spatial organization of neural components.
• Optimal material selection is crucial for mimicking brain biochemical and biophysical properties.

Conclusions:

• 3D bioprinting presents a significant advancement for developing more accurate CNS disease models.
• These advanced models are essential for overcoming current limitations in neurodegenerative disease research and drug development.
• Further research into biomaterials and biofabrication is needed to fully realize the potential of these models.