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Related Concept Videos

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Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
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The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
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Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...
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Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
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Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
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Related Experiment Video

Updated: Nov 19, 2025

Author Spotlight: Ex Vivo Protocol for Culturing Quiescent Muscle Stem Cells with Niche Components
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Perspectives on skeletal muscle stem cells.

F Relaix1,2,3,4, M Bencze5, M J Borok5

  • 1Univ Paris Est Creteil, INSERM, IMRB, 94010, Creteil, France. frederic.relaix@inserm.fr.

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|January 30, 2021
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Summary

Muscle stem cells (MuSCs) drive skeletal muscle regeneration. New technologies redefine their states, revealing insights into heterogeneity, metabolism, and niche regulation for regenerative medicine.

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Area of Science:

  • Biomedical Science
  • Cell Biology
  • Regenerative Medicine

Background:

  • Skeletal muscle possesses significant regenerative capacity.
  • Resident muscle stem cells (MuSCs) are key to this regeneration.

Purpose of the Study:

  • To review recent technological advancements and mechanistic insights into MuSC biology.
  • To discuss the role of cellular heterogeneity, metabolism, and niche interactions in MuSC function.
  • To highlight the implications for regenerative medicine.

Main Methods:

  • Review of recent literature and technological developments.
  • Analysis of studies on MuSC states (quiescence, Galert).
  • Examination of research on MuSC heterogeneity, metabolism, and niche regulation.

Main Results:

  • Recent technologies have redefined understanding of MuSC quiescence and Galert states.
  • MuSC function is linked to cellular heterogeneity, impacting regeneration, disorders, and aging.
  • MuSC metabolism and niche regulation are crucial for self-renewal and function.

Conclusions:

  • Advances in MuSC biology offer new perspectives on stem cell function.
  • Understanding MuSCs is critical for developing therapeutic strategies in regenerative medicine.