Search for the "ideal analgesic" in pain treatment by engineering the mu-opioid receptor

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Abstract

The myriad of side effects that associate with morphine has been problematic in the clinical use to manage moderate to severe pain. It has been the holy grail of the pharmacologists to develop a compound, or treatment paradigm that could retain the analgesic effect of the drug as eliminating or reducing the side effects, mainly the tolerance and addiction development associates with chronic usage of the drug. In our earlier receptor structure/activities studies, we discovered an unique mutation of a conserved Ser in the fourth transmembrane domain of the opioid receptor that the alkaloid antagonist could activate the receptor. On the basis of this initial finding, we decide to explore the possibility of using virus to deliver the mutant muopioid receptor at the various sites of the nociceptive pathway and induce the antinociceptive responses with the systemic administration of opioid antagonists. In this article, we will summarize the progress of such approach and the probable advantages over the conventional approach of drug development in the treatment of chronic pain.

Original languageEnglish (US)
Pages (from-to)103-111
Number of pages9
JournalIUBMB Life
Volume62
Issue number2
DOIs
StatePublished - 2010

Keywords

  • Morphine
  • Mu-opioid receptor
  • Naloxone
  • Pain treatment

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