Single intrathecal administration of the transcription factor decoy AYX1 prevents acute and chronic pain after incisional, inflammatory, or neuropathic injury

Julien Mamet, Michael Klukinov, Tony L. Yaksh, Shelle A. Malkmus, Samantha Williams, Scott Harris, Donald C. Manning, Bradley K. Taylor, Renee R. Donahue, Frank Porreca, Jennifer Y. Xie, Janice Oyarzo, Timothy J. Brennan, Alberto Subieta, William K. Schmidt, David C. Yeomans

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

The persistence of pain after surgery increases the recovery interval from surgery to a normal quality of life. AYX1 is a DNA-decoy drug candidate designed to prevent post-surgical pain following a single intrathecal injection. Tissue injury causes a transient activation of the transcription factor EGR1 in the dorsal root ganglia-dorsal horn network, which then triggers changes in gene expression that induce neuronal hypersensitivity. AYX1 is a potent, specific inhibitor of EGR1 activity that mimics the genomic EGR1-binding sequence. Administered in the peri-operative period, AYX1 dose dependently prevents mechanical hypersensitivity in models of acute incisional (plantar), inflammatory (CFA), and chronic neuropathic pain (SNI) in rats. Furthermore, in a knee surgery model evaluating functional measures of postoperative pain, AYX1 improved weight-bearing incapacitance and spontaneous rearing compared to control. These data illustrate the potential clinical therapeutic benefits of AYX1 for preventing the transition of acute to chronic post-surgical pain.

Original languageEnglish (US)
Pages (from-to)322-333
Number of pages12
JournalPain
Volume155
Issue number2
DOIs
StatePublished - Feb 2014

    Fingerprint

Keywords

  • AYX1
  • Acute
  • Chronic
  • Oligonucleotide
  • Post-surgical pain
  • Prevention

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Anesthesiology and Pain Medicine

Cite this

Mamet, J., Klukinov, M., Yaksh, T. L., Malkmus, S. A., Williams, S., Harris, S., Manning, D. C., Taylor, B. K., Donahue, R. R., Porreca, F., Xie, J. Y., Oyarzo, J., Brennan, T. J., Subieta, A., Schmidt, W. K., & Yeomans, D. C. (2014). Single intrathecal administration of the transcription factor decoy AYX1 prevents acute and chronic pain after incisional, inflammatory, or neuropathic injury. Pain, 155(2), 322-333. https://doi.org/10.1016/j.pain.2013.10.015