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The change tendency of PI3K/Akt pathway after spinal cord injury

Peixun Zhang1, Luping Zhang2, Lei Zhu3

  • 1Department of Orthopedics and Traumatology, Peking University People's Hospital Beijing, China.

American Journal of Translational Research
|January 26, 2016
PubMed

Insights

Spinal cord injury (SCI) involves apoptosis. This study found the PI3K/Akt pathway is activated after SCI, suggesting a role in the injury mechanism possibly linked to apoptosis.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cellular Biology

Background:

  • Spinal cord injury (SCI) is damage to the spinal cord.
  • Apoptosis is a primary mechanism of secondary injury following SCI.
  • The PI3K/Akt pathway's role in SCI requires further elucidation.

Purpose of the Study:

  • To investigate the temporal expression of PI3K/Akt pathway molecules after SCI.
  • To understand the involvement of the PI3K/Akt pathway in SCI-induced apoptosis.

Main Methods:

  • Immunohistochemistry was used to visualize protein expression.
  • Western blot analysis quantified protein levels.
  • Key molecules PI3K, Akt, and p-Akt were assessed post-SCI.

Main Results:

  • PI3K, Akt, and p-Akt expression significantly increased one day after SCI.
  • Expression levels gradually decreased over time but remained elevated compared to controls.
  • The PI3K/Akt pathway showed dynamic changes following spinal cord injury.

Conclusions:

  • The PI3K/Akt signaling pathway is implicated in spinal cord injury.
  • Activation of this pathway may be associated with SCI-related apoptosis.
  • Further research into the PI3K/Akt pathway could reveal therapeutic targets for SCI.
Keywords:
AktPI3KSpinal cord injuryapoptosis

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