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Neuronal Plasticity in Development: Lessons from Ethanol Neurotoxicity during Embryogenesis

  • Susan Kentroti
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 429)

Abstract

Conceptually, it can be said that development of the embryonic central nervous system begins with a population of undifferentiated, multipotent cells and ends up with a highly organized arrangement of mature neurons each of which expresses a functional neurotransmitter phenotype. This ultimate, functional phenotype is a product of the interaction of numerous influences impinging on multipotential neuroblasts. Physical factors such as cell-cell contacts, migratory pathways and a plethora of soluble factors all profoundly influence establishment of neuronal phenotype during neuroembryogenesis. For example, definitive studies by LeDouarin and coworkers beginning in the early 1970’s (Le Douarin, 1973; 1980; Le Douarin and Teillet, 1974; Le Douarin et al, 1975; Le Douarin and Smith, 1988; Teillet and Le Douarin, 1983) demonstrated in vivo that neuronal phenotypes are neither rigidly predetermined nor static. They found that the migratory destination of autonomic neuroblasts of neural crest origin determines their ultimate neurotransmitter phenotype. Furthermore, they demonstrated that exposure of neural crest-derived presumptive adrenergic neuroblasts to cells from another germ cell layer, splanchnic mesoderm, results in a phenotypic shift to fully differentiatied cholinergie neurons (Le Douarin et al, 1975). Collectively, these studies have introduced the idea of neuronal plasticity in the developing brain.

Keywords

Nerve Growth Factor Chick Embryo Neural Crest Cell Neural Cell Adhesion Molecule Neuronal Plasticity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Susan Kentroti
    • 1
  1. 1.Departments of Pharmacology and PsychiatryUniversity of Colorado Health Sciences CenterDenverUSA

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