Beneficial effects of PJ34 and INO-1001, two novel water-soluble poly(ADP-ribose) polymerase inhibitors, on the consequences of traumatic brain injury in rat

Valérie C. Besson, Zsuzsanna Zsengellér, Michel Plotkine, Csaba Szabo, Catherine Marchand-Verrecchia

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

Traumatic brain injury produces peroxynitrite, a powerful oxidant which triggers DNA strand breaks, leading to the activation of poly(ADP-ribose) polymerase-1 (PARP-1). We previously demonstrated that 3-aminobenzamide, a PARP inhibitor, is neuroprotective in a model of traumatic brain injury induced by fluid percussion in rat, suggesting that PARP-1 could be a therapeutic target. In order to confirm this hypothesis, we investigated the effects of PJ34 and INO-1001, two PARP inhibitors from structural classes other than benzamide, on the post-traumatic consequences. Pre- and post-treatments with PJ34 (30 mg/kg/day) and INO-1001 (10 mg/kg/day) decrease the neurological deficit at 3 days post-injury and this deficit is still reduced at 7 days. These neurological recovery-promoting effects are associated with the inhibition of PARP-1 activation caused by trauma, as demonstrated by abolishment of immunostaining of poly(ADP-ribose). Thus, the present work strengthens strongly the concept that PARP-1 inhibition may be a suitable approach for the treatment of brain trauma.

Original languageEnglish (US)
Pages (from-to)149-156
Number of pages8
JournalBrain Research
Volume1041
Issue number2
DOIs
StatePublished - Apr 18 2005
Externally publishedYes

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Keywords

  • Inhibitors
  • Neurological deficit
  • Neuroprotection
  • Poly(ADP-ribose) polymerase
  • Rat
  • Traumatic brain injury

ASJC Scopus subject areas

  • Neuroscience(all)

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