3D Bioprinted Human Cortical Neural Constructs Derived from Induced Pluripotent Stem Cells

Area of Science:

• Biotechnology
• Neuroscience
• Stem Cell Biology

Background:

• 3D bioprinting enables precise construction of tissue mimics using bioinks and cells.
• Induced pluripotent stem cells (iPSCs) can differentiate into various neural cell types, ideal for nervous system modeling.

Purpose of the Study:

• To generate a 3D bioprinted neural construct using human iPSC-derived cortical neurons and glial precursors.
• To assess the viability, differentiation potential, and functional activity of bioprinted neural cells.

Main Methods:

• Extrusion-based 3D bioprinting of iPSC-derived neural cells.
• Cell viability assays (short and long term).
• Immunocytochemistry for neuronal and astrocytic markers.
• Functional analysis of network activity.

Main Results:

• The bioprinting process maintained high cell viability.
• Bioprinted cells successfully differentiated into neurons and astrocytes, expressing relevant markers.
• Early-stage neuronal maturation and network activity were observed in the constructs.

Conclusions:

• 3D bioprinting is a viable method for creating neural constructs from human iPSCs.
• These constructs exhibit promising cellular and functional characteristics for nervous system modeling.
• This approach provides a foundation for developing more complex and accurate 3D models of the human nervous system.