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Updated: Mar 6, 2026
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Real Time and Repeated Measurement of Skeletal Muscle Growth in Individual Live Zebrafish Subjected to Altered Electrical Activity
Published on: June 16, 2022
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Interaction between electrical stimulation, protein coating and matrix elasticity: a complex effect on muscle fibre
K J M Boonen1, D W J van der Schaft, F P T Baaijens
1Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands.
Summary
Creating mature skeletal muscle tissue in vitro is challenging. This study found that while electrical stimulation mildly enhanced myoblast maturation, it is not essential for developing functional muscle tissue in current tissue engineering models.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Cell Biology
Background:
- Skeletal muscle tissue engineering aims to create functional muscle constructs in vitro.
- Mimicking the in vivo cellular niche, including extracellular matrix properties, is crucial for cell maturation.
- Previous work demonstrated the impact of matrix stiffness and protein coating on muscle progenitor cells in 2D cultures.
Purpose of the Study:
- To investigate the additional effect of electrical stimulation on primary myoblast maturation.
- To determine if electrical stimulation influences myoblast differentiation and maturation on substrates with varying stiffness and coatings.
Main Methods:
- Primary myoblasts were cultured on Matrigel™- or laminin-coated substrates with different elasticities.
- Electrical stimulation was applied to the cultured myoblasts.
- Myoblast differentiation and maturation were assessed under varying conditions.
Main Results:
- The effect of electrical stimulation on myoblast maturation was dependent on substrate coating and stiffness.
- Electrical stimulation demonstrated a mild enhancement of myoblast maturation.
- The observed enhancement by electrical stimulation was not substantial enough to be deemed essential.
Conclusions:
- Electrical stimulation, under the tested conditions, is not essential for generating functional, mature skeletal muscle tissue in vitro.
- Substrate properties like coating and stiffness play a significant role in myoblast maturation.
- Further optimization of electrical stimulation parameters may be needed for a more pronounced effect.
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