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Related Experiment Video

Updated: Mar 19, 2026

Organotypic Cultures of Adult Human Cortex as an Ex vivo Model for Human Stem Cell Transplantation and Validation
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Analysis of Neural Stem Cells from Human Cortical Brain Structures In Vitro.

M A Aleksandrova1,2, R A Poltavtseva3, M V Marei2

  • 1N. K. Kol'tsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.

Bulletin of Experimental Biology and Medicine
|June 10, 2016
PubMed
Summary
This summary is machine-generated.

Neural stem and progenitor cells are found in the human fetal brain from week 8 to 26. These cells exhibit distinct characteristics and differentiation potential throughout gestation.

Keywords:
differentiationimmunocytochemical and immunohistochemical analysisneocortexneural stem cellsregenerative medicine

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • Neural stem cells (NSCs) are crucial for brain development.
  • Understanding NSC behavior during human gestation is vital for developmental neuroscience.
  • Previous studies have indicated NSC presence but lacked detailed gestational analysis.

Purpose of the Study:

  • To comparatively analyze neural stem and progenitor cells in the human fetal neocortex.
  • To investigate changes in NSC distribution, morphology, growth, and quantity across gestation.
  • To assess the differentiation capacity of NSCs from different gestational periods.

Main Methods:

  • Comparative immunohistochemical analysis of human fetal neocortex samples.
  • Immunocytochemical analysis of cultured neural stem cells.
  • Detailed analysis of specific NSC populations (Lex/SSEA1+) at key gestational weeks (8-9, 18-20, 26).

Main Results:

  • Neural stem and progenitor cells are present in the human neocortex from at least week 8 through week 26 of gestation.
  • Significant differences in NSC distribution, morphology, growth, and quantity were observed between first and second-trimester fetuses.
  • Cultured NSCs demonstrated differentiation capacity, varying with gestational origin and culture conditions.

Conclusions:

  • Human fetal neural stem and progenitor cells are present throughout a significant portion of gestation.
  • Gestational stage influences NSC characteristics and behavior.
  • These findings provide insights into the dynamic nature of neural stem cells during human brain development.