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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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The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...
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Growing Neural Stem Cells from Conventional and Nonconventional Regions of the Adult Rodent Brain
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Stem cells in the nervous system.

Angel R Maldonado-Soto1, Derek H Oakley, Hynek Wichterle

  • 1From the Columbia Stem Cell Initiative (ARM-S, DHO, HW, JS, FKD, CEH); Departments of Pathology and Cell Biology, Neurology and Neuroscience, Center for Motor Neuron Biology and Disease (ARM-S, DHO, HW, FKD, CEH); Project A.L.S./Jenifer Estess Laboratory for Stem Cell Research (DHO, HW, CEH); and Department of Rehabilitation and Regenerative Medicine (ARM-S, JS, FKD, CEH), Columbia University Medical Center, New York, New York.

American Journal of Physical Medicine & Rehabilitation
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Summary
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Stem cells offer promising regenerative medicine treatments for brain and neurodegenerative diseases. Research explores endogenous and pluripotent stem cells for therapeutic applications and disease modeling.

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Area of Science:

  • Neuroscience
  • Regenerative Medicine
  • Stem Cell Biology

Background:

  • Stem cells possess the ability to regenerate cells lost due to injury or disease.
  • Stem cell biology is a key driver in regenerative medicine research.
  • Neurodegenerative diseases represent a significant area for stem cell applications.

Purpose of the Study:

  • To review the current applications of stem cells in treating human brain ailments, particularly neurodegenerative diseases.
  • To discuss the therapeutic potential of endogenous and pluripotent stem cells for neurological disorders.

Main Methods:

  • Review of current literature on stem cell applications in neurodegenerative diseases.
  • Discussion of endogenous neural stem cells within the adult brain.
  • Exploration of pluripotent stem cells for generating neural cells in culture.

Main Results:

  • Endogenous neural stem cells generate neurons throughout life but are confined to specific brain regions.
  • Understanding molecular regulation is crucial for activating dormant stem cells.
  • Patient-derived stem cells offer tools for disease modeling, drug testing, and cell-based therapies.

Conclusions:

  • Stem cell-based therapies hold significant promise for treating neurodegenerative diseases.
  • Further research into molecular mechanisms is needed to harness the full therapeutic potential of stem cells.
  • Integrating basic science with clinical rehabilitation is essential for developing viable stem cell treatments.