Effects of cerium oxide nanoparticles on PC12 neuronal-like cells: proliferation, differentiation, and dopamine secretion

Pharm Res. 2013 Aug;30(8):2133-45. doi: 10.1007/s11095-013-1071-y. Epub 2013 May 10.

Abstract

Purpose: Oxidative stress has been found to play a key role in several diseases, that range from cancer to neurodegenerative disorders. Besides traditional anti-oxidant agents, in recent years much attention has been focused on nanotechnological solutions, including cerium oxide nanoparticles (nanoceria).

Methods: Thanks to its extraordinary catalytic properties, nanoceria mimics the activity of superoxide dismutase and of catalase, therefore acting as a reactive oxygen species (ROS) scavenger in many biological contexts. In this paper, we report on nanoceria interactions with PC12 cell line, that represents a valuable model for many features of central dopaminergic neurons.

Results: Nanoceria confirmed a strong anti-ROS action but, most interestingly, also showed beneficial effects on both cell differentiation and dopamine production.

Conclusions: Even if deeper examinations will be necessary in order to better clarify the mechanisms at the base of the documented effects, nanoceria demonstrated a significant potential as pharmacological agent in the treatment of neurological disorders.

MeSH terms

  • Animals
  • Antioxidants / chemistry
  • Antioxidants / pharmacology*
  • Cell Differentiation / drug effects*
  • Cell Proliferation / drug effects*
  • Cerium / chemistry
  • Cerium / pharmacology*
  • Dopamine / metabolism*
  • Nanoparticles / chemistry
  • Nanoparticles / metabolism*
  • PC12 Cells
  • Rats
  • Reactive Oxygen Species / metabolism

Substances

  • Antioxidants
  • Reactive Oxygen Species
  • Cerium
  • ceric oxide
  • Dopamine