A perspective on neuronal cell death signaling and neurodegeneration

Mol Neurobiol. 2010 Aug;42(1):25-31. doi: 10.1007/s12035-010-8128-2. Epub 2010 May 18.

Abstract

Although neuronal cell death through apoptotic pathways represents a common feature of dysferopathies, the canonical apoptotic changes familiar from nonneuronal cells are late events. Loss of neuronal function occurs at a much early time, when synaptic-based neuronal connectivity fails. In this context, apoptotic pathways may normally serve a cleanup role, rather than a pathogenic one. Reframing the consideration of cell death in the nervous system to include the early stages of axonal degeneration provides a better understanding of the roles played by various apoptotic signaling pathways in neurodegenerative diseases. Focusing on disease-specific mechanisms that initiate the sequence that eventually leads to neuronal loss should facilitate development of therapies that preserve neuronal function and neuronal numbers.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Axonal Transport
  • Cell Death
  • Cell Survival
  • Humans
  • Nerve Degeneration / pathology*
  • Nerve Growth Factors / metabolism
  • Neurons / pathology*
  • Signal Transduction*
  • Synapses / metabolism

Substances

  • Nerve Growth Factors