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A Human Neural Tube Model Using 4D Self-Folding Smart Scaffolds.

Claudia Dell'Amico1,2, Irene Chiesa3, Angela Toffano1

  • 1University of Pisa, Department of Biology, Unit of Cell, Molecular, and Developmental Biology, Pisa, 56127, Italy.

Advanced Healthcare Materials
|October 23, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed a 4D-neural tube (4D-NT) using stem cells and 4D bioprinting. This innovative model self-folds to mimic human neural tube development and disease, advancing neuroscience research.

Keywords:
4D scaffoldWDR62bioprintingiPSCsneurodevelopmentself‐folding

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Area of Science:

  • Developmental Biology
  • Biotechnology
  • Regenerative Medicine

Background:

  • The human brain develops from the neural tube, a complex process involving precise molecular and cellular regulation.
  • Existing models often fail to fully capture the intricate architecture and developmental dynamics of the human neural tube.

Purpose of the Study:

  • To develop a novel 4D-neural tube (4D-NT) model using stem cell technology and 4D bioprinting.
  • To mimic the self-folding and cellular architecture of the developing human neural tube.
  • To create a platform for studying human neural development and associated diseases.

Main Methods:

  • Utilized 4D bioprinting to create a self-folding scaffold capable of mimicking neural tube formation.
  • Populated the scaffold with induced pluripotent stem cell (iPSC)-derived neuroprogenitors.
  • Investigated the self-folding mechanism driven by differential swelling properties of bilayer films.
  • Analyzed neuroprogenitor induction and recapitulated disease models using patient-derived iPSCs.

Main Results:

  • Successfully generated a 4D-NT model that self-folds upon hydration, mimicking neural tube cellular architecture.
  • Demonstrated highly efficient induction of neuroprogenitors on the 4D-NT, reflecting the complexity of neural development.
  • Validated the 4D-NT platform by recapitulating known observations in microcephaly models using WDR62-mutated iPSCs.

Conclusions:

  • The 4D-NT platform effectively models the spatial and structural complexity of the developing human neural tube.
  • This advanced model serves as a valuable tool for understanding human neural development and diseases like microcephaly.
  • The combination of stem cells and 4D bioprinting offers a promising approach for future regenerative medicine applications.