Muscle Stem Cell
Muscle Stem Cell - Related Videos
07:36
Intravital Microscopy of the Microcirculation in the Mouse Cremaster Muscle for the Analysis of Peripheral Stem Cell Migration
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Cited by 4 •
2013
Intravital microscopy of the mouse M. cremaster microcirculation offers a unique and well-standardized in vivo model for the analysis of peripheral bone marrow stem cell migration.
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.
10:03
Transplantation of Induced Pluripotent Stem Cell-derived Mesoangioblast-like Myogenic Progenitors in Mouse Models of Muscle Regeneration
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Cited by 30 •
2014
Induced pluripotent stem cell (iPSC)-derived myogenic progenitors are promising candidates for cell therapy strategies to treat muscular dystrophies. This protocol describes transplantation and functional measurements required to evaluate the engraftment and differentiation of iPSC-derived mesoangioblasts (a type of muscle progenitors) in mouse models of acute and chronic muscle regeneration.
22:06
Derivation of Hematopoietic Stem Cells from Murine Embryonic Stem Cells
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Cited by 8 •
2007
This protocol details the derivation of transplantable hematopoietic stem cells from mouse embryonic stem cells (ESC) and their subsequent injection into lethally irradiated recipient mice. Briefly, ESC are differentiated as embryoid bodies, which are then infected with retroviral HoxB4 and co-cultured with OP9 stromal cells and hematopoietic cytokines.
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
Most adult satellite cells remain quiescent until muscle damage provides a trigger. They then activate, proliferate, and differentiate, creating new muscle cells that can contribute to repair. This sequence links an initial injury signal to restoration of muscle tissue, while preserving a reserve of cells through self-renewal. The balance between these responses is central to regenerative biology.
Self-renewal and differentiation serve different biological purposes. Differentiation produces muscle cells that can fuse with existing fibers, supporting repair or regeneration. Self-renewal replenishes the stem cell population so future injuries can be addressed. Studying both outcomes helps explain how muscle maintains regenerative capacity rather than using the entire resident stem cell pool after a single damage event.
Fusion allows newly formed muscle cells to join existing muscle fibers instead of remaining separate. This step connects stem cell activity with restoration of muscle structure and function after damage. Examining fusion alongside proliferation and differentiation helps researchers determine whether a regenerative response has progressed beyond cell production to integration within the tissue.
These cells provide a model for studying tissue maintenance, repair, and regeneration in skeletal muscle. Their behavior also connects developmental biology with later muscle adaptation, aging, and disease. Comparing the stem cell response across these contexts can clarify why regenerative capacity matters for normal muscle biology as well as pathological muscle conditions.
A study can follow the response from quiescence through activation, proliferation, differentiation, and fusion, while also assessing self-renewal. This sequence organizes questions about whether muscle cells are being produced, incorporated into existing fibers, and replenished for later use. It provides a conceptual framework for interpreting repair and regeneration outcomes without treating cell production as the only measure of recovery.
Muscular dystrophy is a major disease context for examining whether muscle stem cell activity can support restoration of damaged tissue. Research can use the relationship between stem cell responses, muscle cell fusion, and preservation of the stem cell pool to investigate regenerative limitations. These studies support broader efforts aimed at restoring muscle structure and function.
Findings from muscle stem cell biology support tissue engineering and regenerative therapies by identifying cellular behaviors that matter for rebuilding muscle. Activation, proliferation, differentiation, fusion, and self-renewal each represent relevant parts of the regenerative process. Understanding these events helps frame approaches intended to restore muscle structure and function in damaged or diseased tissue.