Synapses and Sisyphus: life without paraplegin

J Clin Invest. 2004 Jan;113(2):185-7. doi: 10.1172/JCI20783.

Abstract

The family of neurodegenerative diseases known as hereditary spastic parapareses have diverse genetic loci, yet there is a remarkable convergence in the neuropathologic and neurologic phenotype. A report describing the construction of a transgenic mouse with a deletion of a nuclear-encoded mitochondrial protein involved in the regulation of oxidative phosphorylation suggests that this family of diseases may reflect activation of a final common pathway involving synaptic dysfunction that progresses to destruction of the presynaptic nerve terminal and axon.

Publication types

  • Research Support, U.S. Gov't, P.H.S.
  • Review
  • Comment

MeSH terms

  • ATPases Associated with Diverse Cellular Activities
  • Animals
  • Cell Nucleus / metabolism
  • Gene Deletion
  • Humans
  • Membrane Potentials
  • Metalloendopeptidases / genetics
  • Metalloendopeptidases / physiology*
  • Mice
  • Mice, Transgenic
  • Mitochondria / metabolism
  • Models, Biological
  • Oxidative Stress
  • Oxygen / metabolism
  • Phenotype
  • Phosphorylation
  • Spastic Paraplegia, Hereditary / genetics
  • Synapses / physiology*

Substances

  • Metalloendopeptidases
  • SPG7 protein, human
  • Spg7 protein, mouse
  • ATPases Associated with Diverse Cellular Activities
  • Oxygen