3D Bioprinted Hydrogel for Neuron Growth
Author Information
Author(s): Laura Honkamäki, Oskari Kulta, Paula Puistola, Karoliina Hopia, Promise Emeh, Lotta Isosaari, Anni Mörö, Susanna Narkilahti
Primary Institution: Tampere University
Hypothesis
Can a 3D bioprinted hydrogel structure guide axonal growth and model innervation in vitro?
Conclusion
The study successfully developed a 3D axonal guidance structure that supports directed axonal growth and complete innervation by peripheral neurons within 14 days.
Supporting Evidence
- Neurons formed a 3D network in the softer bioink supplemented with guidance cues.
- The stiffer bioink restricted network formation.
- Complete innervation by peripheral neurons was achieved within 14 days of culture.
- Mechanical properties of the bioinks were confirmed through rheological measurements.
- NGF and laminin supplementation enhanced neuronal network formation.
Takeaway
Scientists created a special gel that helps nerve cells grow in the right direction, like a path for them to follow.
Methodology
The study used multimaterial 3D bioprinting to create a hydrogel structure with soft and stiff bioinks, and tested the growth of human pluripotent stem cell-derived neurons in this structure.
Potential Biases
Potential bias in the selection of bioink compositions and neuronal types used in the experiments.
Limitations
The study primarily focused on two types of neurons and may not represent all neuronal behaviors in different environments.
Participant Demographics
Human pluripotent stem cell-derived neurons were used in the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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