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Updated: Jul 14, 2026
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Intra-Arterial Delivery of Neural Stem Cells to the Rat and Mouse Brain: Application to Cerebral Ischemia
Published on: June 26, 2020
[Ischemic damage-induced nestin synthesis in the rat brain cells]
Morfologiia (Saint Petersburg, Russia)
|May 29, 2007
Summary
Nestin expression reappears in rat astrocytes and undifferentiated subventricular zone cells after brain ischemia. This suggests reactive astrocytes gain immature glial properties but doesn't confirm neural stem cell transformation.
Area of Science:
- Neuroscience
- Cell Biology
- Neurobiology
Context:
- Nestin, an intermediate filament protein, is typically expressed in developing mammalian brain cells and diminishes during differentiation.
- Global brain ischemia is a condition that can lead to significant cellular changes and injury in the brain.
Purpose:
- To investigate the cellular localization and morphological characteristics of nestin-expressing cells in the rat brain following short-term global ischemia.
- To understand the potential implications of nestin re-expression in mature brain cells after injury.
Summary:
- Nestin synthesis was induced in astrocytes within injured brain regions after ischemia. These astrocytes displayed atypical structural features resembling immature cells.
- Nestin expression was also observed in proliferating, undifferentiated cells of the subventricular zone.
- While astrocytes acquired some immature glial properties, this study does not support their transformation into neural stem cells.
Impact:
- This research sheds light on the reactive changes in astrocytes and glial progenitor cells following ischemic brain injury.
- Findings contribute to understanding cellular plasticity and potential regenerative mechanisms in the injured brain.
- The study clarifies the role of nestin as a marker in reactive astrogliosis and its implications for neural stem cell research.
