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c-fos protooncogene expression and neuronal plasticity.

L Kaczmarek1, E Nikołajew

  • 1Department of Neurophysiology, Nencki Institute of Experimental Biology, Warsaw, Poland.

Acta Neurobiologiae Experimentalis
|January 1, 1990
PubMed
Summary

The protooncogene c-fos, a nuclear protein, is upregulated in activated neurons. This suggests c-fos links neuronal stimulation to long-term responses like memory formation.

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • Protooncogene c-fos is a nuclear protein involved in gene expression regulation.
  • Elevated c-fos expression is observed in activated neurons both in vitro and in vivo.
  • c-fos induction is linked to neurotransmitter action on membrane receptors and physiological stimuli.

Purpose of the Study:

  • To investigate the role of protooncogene c-fos in neuronal activation.
  • To explore the connection between extracellular ligand stimulation and intracellular long-term responses.
  • To understand the potential involvement of c-fos in memory formation.

Main Methods:

  • Observational studies of c-fos mRNA and protein levels in neurons.
  • Analysis of neurotransmitter-induced signaling pathways.
  • In vitro and in vivo experimental models of neuronal activation.

Main Results:

  • Increased c-fos mRNA and/or protein levels were observed following neuronal activation.
  • c-fos expression is triggered by neurotransmitter receptor activation.
  • Physiological stimuli were shown to induce c-fos expression.

Conclusions:

  • Elevated c-fos expression in neurons serves as a crucial link between extracellular stimulation and intracellular long-term effects.
  • Protooncogene c-fos plays a significant role in coupling neuronal activation with effector responses.
  • The study suggests a potential mechanism for c-fos involvement in long-lasting memory formation.

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