ATP-induced in vivo neurotoxicity in the rat striatum via P2 receptors

Neuroreport. 2002 Sep 16;13(13):1611-5. doi: 10.1097/00001756-200209160-00008.

Abstract

The present study examined the effects of ATP on the striatum of Sprague-Dawley rats. Intrastriatal administration of ATP produced dose-dependent striatal lesions as confirmed by cresyl violet staining. Additional immunostaining using neuronal nuclear protein (NeuN), OX-42 and GFAP antibodies revealed that ATP caused death of both neurons and glial cells. The nonmetabolizable ATP analogue ATPgammaS and P2X receptor agonist alpha,beta-methylene ATP (alpha,beta-MeATP) mimicked ATP effects, whereas either P2Y receptor agonist ADP or P1 receptor agonist adenosine did not. The P2 receptor antagonist reactive blue 2, but not pyridoxal-phosphate-6-azophenyl-2',4'-disulphonic acid (PPADS) attenuated ATP-induced striatal injury. These results suggest that intrastriatal administration of ATP causes P2X receptor-mediated cell death in the striatum and support the hypothesis that extracellular ATP can be an important mediator of neuropathological events of brain injuries.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenosine Triphosphate / analogs & derivatives
  • Adenosine Triphosphate / metabolism*
  • Adenosine Triphosphate / pharmacology
  • Animals
  • Antigens, CD*
  • Antigens, Neoplasm*
  • Antigens, Surface*
  • Astrocytes / drug effects
  • Astrocytes / metabolism
  • Astrocytes / pathology
  • Avian Proteins*
  • Basigin
  • Blood Proteins*
  • Cell Death / drug effects
  • Cell Death / physiology
  • Dose-Response Relationship, Drug
  • Female
  • Glial Fibrillary Acidic Protein / metabolism
  • Hypoxia-Ischemia, Brain / metabolism*
  • Hypoxia-Ischemia, Brain / physiopathology
  • Membrane Glycoproteins / metabolism
  • Microglia / drug effects
  • Microglia / metabolism
  • Microglia / pathology
  • Neostriatum / drug effects
  • Neostriatum / metabolism*
  • Neostriatum / physiopathology
  • Nerve Degeneration / chemically induced
  • Nerve Degeneration / metabolism
  • Nerve Degeneration / physiopathology
  • Neuroglia / drug effects
  • Neuroglia / metabolism*
  • Neuroglia / pathology
  • Neurons / drug effects
  • Neurons / metabolism*
  • Neurons / pathology
  • Neurotoxins / metabolism*
  • Neurotoxins / toxicity
  • Purinergic P1 Receptor Agonists
  • Purinergic P1 Receptor Antagonists
  • Purinergic P2 Receptor Agonists
  • Purinergic P2 Receptor Antagonists
  • Rats
  • Rats, Sprague-Dawley
  • Receptors, Purinergic P1 / metabolism
  • Receptors, Purinergic P2 / metabolism*
  • Receptors, Purinergic P2X

Substances

  • Antigens, CD
  • Antigens, Neoplasm
  • Antigens, Surface
  • Avian Proteins
  • Blood Proteins
  • Bsg protein, Gallus gallus
  • Bsg protein, rat
  • Glial Fibrillary Acidic Protein
  • Membrane Glycoproteins
  • Neurotoxins
  • Purinergic P1 Receptor Agonists
  • Purinergic P1 Receptor Antagonists
  • Purinergic P2 Receptor Agonists
  • Purinergic P2 Receptor Antagonists
  • Receptors, Purinergic P1
  • Receptors, Purinergic P2
  • Receptors, Purinergic P2X
  • Basigin
  • Adenosine Triphosphate