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Related Concept Videos

Satellite Stem Cells and Muscular Dystrophy01:21

Satellite Stem Cells and Muscular Dystrophy

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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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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
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The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
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Related Experiment Video

Updated: Apr 21, 2026

Transplantation of Induced Pluripotent Stem Cell-derived Mesoangioblast-like Myogenic Progenitors in Mouse Models of Muscle Regeneration
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Stem cell therapy for GI neuromuscular disorders.

Khalil N Bitar1, Shreya Raghavan

  • 1Wake Forest School of Medicine, Wake Forest Institute for Regenerative Medicine, 391 Technology Way, Richard H Dean Biomedical Engineering Building, Winston-Salem, NC, 27101, USA, kbitar@wakehealth.edu.

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Stem cell therapy offers a promising approach to treat gastrointestinal motility disorders by replacing damaged enteric nervous system cells. Transplanting adult neural stem cells can restore gut function in conditions like Hirschsprung disease.

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Area of Science:

  • Gastroenterology and Regenerative Medicine
  • Neuroscience and Developmental Biology

Background:

  • The enteric nervous system (ENS) controls gut motility, but neuromuscular disorders can damage its neural and glial components.
  • Current pharmacological treatments fail to address the root cause of dysmotility stemming from damaged ENS circuitry.
  • Cell-based therapies are emerging as a potential solution for gastrointestinal motility disorders.

Purpose of the Study:

  • To review key studies on stem cell transplantation for treating gastrointestinal motility and function disorders.
  • To highlight the potential of adult neural stem cells in regenerating the ENS.

Main Methods:

  • Isolation of adult neural stem cells from human intestinal biopsies.
  • Differentiation of these stem cells into functional enteric neurons and glia.
  • Transplantation of stem cells into animal models with aganglionic or dysganglionic intestine.

Main Results:

  • Demonstrated successful differentiation of intestinal stem cells into diverse ENS cell types.
  • Showcased restoration of gastrointestinal motility and function following stem cell transplantation in preclinical models.
  • Established the therapeutic potential of ENS stem cell transplantation.

Conclusions:

  • Adult intestinal neural stem cells hold significant promise for cell-based therapies targeting ENS disorders.
  • Stem cell transplantation represents a viable strategy to repair damaged ENS circuitry and restore gut function.
  • This therapeutic approach offers a potential cure for congenital and acquired gastrointestinal motility impairments.