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Related Concept Videos

Adult Stem Cells01:33

Adult Stem Cells

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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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Embryonic Stem Cells00:58

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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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Embryonic Stem Cells00:57

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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.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
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Induced Pluripotent Stem Cells01:13

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Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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Neural Regulation01:37

Neural Regulation

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Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
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Distinctive Features of Adult Stem Cells vs Cancer Stem Cells01:18

Distinctive Features of Adult Stem Cells vs Cancer Stem Cells

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A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
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Updated: Feb 5, 2026

Culturing Human Pluripotent and Neural Stem Cells in an Enclosed Cell Culture System for Basic and Preclinical Research
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Human Neural Stem Cells for Ischemic Stroke Treatment.

Zaal Kokaia1, Vladimer Darsalia2

  • 1Laboratory of Stem Cells and Restorative Neurology, Lund Stem Cell Center, University Hospital, Lund, Sweden. Zaal.Kokaia@med.lu.se.

Results and Problems in Cell Differentiation
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Stem cell transplantation shows promise for improving functional recovery after ischemic stroke, offering a potential therapy beyond the limited window of acute treatments. Research is ongoing to develop neural stem cells for repairing brain circuitry damaged by stroke.

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Area of Science:

  • Neuroscience
  • Regenerative Medicine
  • Neurology

Background:

  • Ischemic stroke is a leading cause of death and disability globally.
  • Current acute treatments like thrombolysis and thrombectomy have narrow therapeutic windows, leaving many patients without effective options for post-stroke recovery.
  • Stem cell transplantation is being explored as a novel therapeutic strategy for stroke.

Purpose of the Study:

  • To explore the potential of stem cell transplantation as a therapeutic strategy for ischemic stroke.
  • To investigate the mechanisms by which stem cells may improve functional recovery post-stroke.
  • To address the challenge of generating specific neurons for neural circuit reconstruction.

Main Methods:

  • Review of experimental studies in animal models of stroke.
  • Analysis of ongoing clinical studies and trials involving stem cell delivery.
  • Exploration of neural stem cell development and differentiation for therapeutic purposes.

Main Results:

  • Stem cell transplantation in animal models has demonstrated improvements through neuroprotection, angiogenesis, and modulation of inflammation and plasticity.
  • Clinical trials are investigating functional recovery improvements via mechanisms beyond neuronal replacement.
  • The ultimate goal involves generating specific neurons for repairing stroke-induced neural circuitry.

Conclusions:

  • Stem cell transplantation offers a promising therapeutic avenue for ischemic stroke, particularly for patients outside the acute treatment window.
  • Further research is needed to optimize stem cell therapies and overcome challenges in neural regeneration.
  • Developing methods for generating specific neuronal phenotypes from neural stem cells is crucial for effective neural circuit reconstruction.