Deficiency of the zinc finger protein ZPR1 causes neurodegeneration.

  • Doran B
  • Gherbesi N
  • Hendricks G
 et al. 
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Abstract

Mutations that cause reduced expression of the full-length Survival Motor Neurons (SMN) protein are a major cause of spinal muscular atrophy (SMA), a disease characterized by degeneration of the alpha-motor neurons in the anterior horn of the spinal cord. The severity of SMA may be influenced by the actions of modifier genes. One potential modifier gene is represented by ZPR1, which is down-regulated in patients with SMA and encodes a zinc finger protein that interacts with complexes formed by SMN. To test the functional significance of ZPR1 gene down-regulation, we examined a mouse model with targeted ablation of the Zpr1 gene. We report that ZPR1-deficient mice exhibit axonal pathology and neurodegeneration. These data identify ZPR1 deficiency as a contributing factor in neurodegenerative disorders.

Author-supplied keywords

  • Animals
  • Apoptosis
  • Axons
  • Axons: metabolism
  • Axons: pathology
  • Carrier Proteins
  • Carrier Proteins: chemistry
  • Carrier Proteins: genetics
  • Carrier Proteins: metabolism
  • Cell Differentiation
  • Cells, Cultured
  • Disease Progression
  • Mice
  • Mice, Transgenic
  • Microscopy, Electron, Transmission
  • Microtubules
  • Microtubules: genetics
  • Microtubules: metabolism
  • Microtubules: pathology
  • Motor Neurons
  • Motor Neurons: metabolism
  • Motor Neurons: pathology
  • Motor Neurons: ultrastructure
  • Nerve Degeneration
  • Nerve Degeneration: genetics
  • Nerve Degeneration: metabolism
  • Nerve Degeneration: pathology
  • Zinc Fingers

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Authors

  • Beth Doran

  • Norberto Gherbesi

  • Gregory Hendricks

  • Richard A Flavell

  • Roger J Davis

  • Laxman Gangwani

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