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Related Experiment Videos

Developmental changes in progenitor cell responsiveness to cytokines.

G Zhu1, M F Mehler, P C Mabie

  • 1Departments of Neurology and Neuroscience, Albert Einstein College of Medicine, Bronx, New York, USA. gzhu@aecom.yu.edu

Journal of Neuroscience Research
|September 24, 1999
PubMed
Summary

Neural progenitor cell responsiveness to growth factors changes with development. Embryonic cells favor bFGF for proliferation, while adult cells prefer EGF, though all retain multipotency.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • Multipotent progenitor cells reside in brain generative zones throughout life.
  • Understanding developmental changes in progenitor cell responsiveness is crucial.

Purpose of the Study:

  • To investigate how environmental responsiveness of central nervous system (CNS) progenitor cells changes during development.
  • To compare the effects of basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF) on progenitor cells from different developmental stages.

Main Methods:

  • Culturing progenitor cells from embryonic, postnatal, and adult rat brains.
  • Exposing cells to bFGF or EGF and assessing proliferation and differentiation.
  • Treating cells with bone morphogenetic proteins (BMPs) to evaluate their effects.

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Main Results:

  • Embryonic progenitor cells proliferated more with bFGF, while postnatal and adult cells showed greater proliferation with EGF.
  • All progenitor cells retained the capacity to generate neurons, astrocytes, and oligodendrocytes.
  • Differentiation patterns varied: bFGF-generated embryonic cells favored neurons, while postnatal/adult cells favored astrocytes, regardless of initial growth factor.

Conclusions:

  • CNS progenitor cells maintain multipotency and BMP responsiveness throughout development.
  • Significant changes in cellular response properties occur during development, potentially linked to generative vs. regenerative needs.