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Related Experiment Videos

From oocyte to neuron: do neurotransmitters function in the same way throughout development?

G A Buznikov1, Y B Shmukler, J M Lauder

  • 1N.N. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.

Cellular and Molecular Neurobiology
|October 1, 1996
PubMed
Summary
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Classical neurotransmitters are active throughout development, from oocytes to neuronal synapses. This review outlines their changing roles in cell signaling during ontogenesis.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Signaling

Background:

  • Classical neurotransmitters, including acetylcholine, biogenic amines, and GABA, exhibit functional activity across all developmental stages.
  • Existing research highlights the pervasive role of these signaling molecules from early development onwards.

Purpose of the Study:

  • To present a hypothetical scheme detailing the developmental changes in classical neurotransmitter functional activity.
  • To illustrate the progression from early signaling mechanisms to mature synaptic functions during ontogenesis.

Main Methods:

  • Review of accumulated evidence on neurotransmitter activity during ontogenesis.
  • Development of a hypothetical scheme illustrating spatio-temporal changes in neurotransmitter function.

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Main Results:

  • Classical neurotransmitters are functionally active throughout the entire process of ontogenesis.
  • Neurotransmitter functions evolve from "protosynapses" in oocytes and embryos to fully developed neuronal synapses.
  • A developmental scheme is proposed, mapping these functional changes from early stages to neuronal differentiation.

Conclusions:

  • Neurotransmitters play crucial roles in intra- and intercellular signaling at all stages of development.
  • The proposed scheme provides a framework for understanding the genesis and evolution of neurotransmitter functions during ontogenesis.
  • This highlights the fundamental importance of neurotransmission in developmental processes.