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Muscle regeneration models have revealed mechanisms of inflammation, wound clearance, and stem cell-directed repair of damage, thereby informing therapy. Whereas studies of muscle repair are most advanced in rodents, the zebrafish is emerging as an additional model organism with genetic and optical advantages. Various muscle wounding protocols (both chemical and physical) have been published. Here we describe simple, cheap, precise, adaptable, and effective wounding protocols and analysis methods for two stages of a larval zebrafish skeletal muscle regeneration model. We show examples of how muscle damage, ingression of muscle stem cells, immune cells, and regeneration of fibers can be monitored over an extended timecourse in individual larvae. Such analyses have the potential to greatly enhance understanding, by reducing the need to average regeneration responses across individuals subjected to an unavoidably variable wound stimulus.

Original publication





Publication Date





227 - 248


Confocal live imaging, Laser injury, Multiphoton microscopy, Muscle precursor cells, Muscle regeneration, Muscle wounding, Needlestick injury, Pax7, Satellite cell, Second harmonic generation, Spinning disk imaging, Zebrafish muscle, Animals, Zebrafish, Muscle Fibers, Skeletal, Stem Cells, Satellite Cells, Skeletal Muscle, Cell Proliferation, Muscle, Skeletal