Abstract
The ex vivo myofiber culture system has proven to be a useful methodology to explore the biology and behavior of satellite cells within their niche environment. However, a limitation of this system is that myofibers and their associated satellite cells are commonly examined using conventional fluorescence microscopy, which renders a three-dimensional system into two-dimensional imaging, leading to the loss of precious information or misleading interpretation of observations. Here, we report on the use of light-sheet fluorescence microscopy to generate three-dimensional and live imaging of satellite cells on myofibers. Light-sheet microscopy offers high imaging speed and good spatial resolution with minimal photo-bleaching, allowing live imaging and three-dimensional acquisition of skeletal muscle fiber specimen. The potentials of this technology are wide, ranging from the visualization of satellite cell behavior such as cell division and cell migration to imaging the sub-cellular localization of proteins or organelles.
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