Muscle Cells
Muscle Cells - Related Videos
14:18
Fluorescence-based Measurement of Store-operated Calcium Entry in Live Cells: from Cultured Cancer Cell to Skeletal Muscle Fiber
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Cited by 19 •
2012
The extent of store-operated Ca2+ entry (SOCE) can be monitored using fluorescent Ca2+ indicators. Mn2+ quenching of such indicators assays SOCE in cultured cells and skeletal muscle fibers. A technique allowing spatial and temporal resolution of SOCE by confocal imaging of mechanically skinned muscle fibers is also described.
14:36
Adult and Embryonic Skeletal Muscle Microexplant Culture and Isolation of Skeletal Muscle Stem Cells
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Cited by 6 •
2010
The micro-dissected explants technique is a robust and reliable method for isolating proliferative skeletal muscle cells from juvenile, adult or embryonic muscles as a source of skeletal muscle stem cells. Uniquely, these cells have been clonally derived to produce skeletal muscle stem cell lines used for in vivo transplantation.
11:57
Isolation and Culture of Individual Myofibers and their Satellite Cells from Adult Skeletal Muscle
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Cited by 173 •
2013
Isolation and culture of myofibers is the gold standard in vitro system to study the transition of satellite cells through quiescence, activation and differentiation. Importantly, the single myofiber culture system preserves the myofiber/stem cell association, which is an essential component of the muscle stem cell niche.
07:56
Isolation of Skeletal Muscle Satellite Cells for In Vitro Myogenesis Studies
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2026
This protocol provides a standardized method for isolating and enriching primary myoblasts from adult and neonatal mouse skeletal muscle through tissue dissociation, sequential filtration, preplating, and defined culture conditions, enabling the establishment and maintenance of satellite cell-derived myoblast cultures for downstream experimental applications.
11:25
FACS-Isolation and Culture of Fibro-Adipogenic Progenitors and Muscle Stem Cells from Unperturbed and Injured Mouse Skeletal Muscle
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Cited by 7 •
2022
The precise identification of fibro-adipogenic progenitor cells (FAPs) and muscle stem cells (MuSCs) is critical to studying their biological function in physiological and pathological conditions. This protocol provides guidelines for the isolation, purification, and culture of FAPs and MuSCs from adult mouse muscles.
FAQs
Contraction begins when an electrical or chemical signal raises the calcium concentration inside a muscle cell. Calcium then permits actin and myosin filaments to interact, initiating repeated cross-bridge cycling. This sequence links signaling to force production, so changes in calcium handling can influence whether the cell generates mechanical work.
ATP supplies the chemical energy required for repeated cross-bridge cycling between actin and myosin. Each cycle contributes to continued filament interaction and force generation rather than a single, one-time event. The dependence on ATP explains how muscle cells convert stored chemical energy into mechanical work during contraction.
All three cell types use actin-myosin interactions and calcium-linked contraction, but their structural organization, control, and physiological roles differ. Skeletal muscle cells support locomotion and posture, cardiac muscle cells contribute to circulation, and smooth muscle cells serve internal organs. Comparing them connects a shared mechanism with distinct biological functions.
Studies of muscle cells can help examine how exercise changes muscle biology and function, because these cells are directly responsible for force production. Such work contributes to understanding adaptation rather than focusing only on whole-body performance. The same cellular perspective can support investigations of muscular disorders and potential therapeutic strategies.
Muscle cell studies provide a biological context for examining development, disease, and tissue repair. Researchers can use this context to relate cellular contraction and organization to how muscle tissue forms, is damaged, or recovers. These questions also support efforts to develop therapies for muscular disorders and engineered muscle-based tissues.
Research into engineered muscle-based tissues applies knowledge of muscle cells beyond observing natural tissue. It can connect fundamental cell biology with tissue repair and therapeutic development, while examining how contractile cells contribute to constructed biological tissues. Its relevance comes from the same force-generating principle that underlies coordinated muscle contraction.