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Peripherally Acting Opioids in Orofacial Pain.

Qing Liu1,2, Hongwen He2,3, Lijia Mai1,2

  • 1Department of Pediatric Dentistry, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.

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Summary

Peripheral opioid receptors (PORs) and endogenous opioid peptides (EOPs) in the orofacial region modulate pain. This review explores their roles and potential therapeutic strategies for orofacial pain.

Keywords:
endogenous opioid peptidesimmune cellsneuroimmuneorofacial painperipheral opioid receptors

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Pain Research

Background:

  • Peripheral opioid receptors (PORs) and endogenous opioid peptides (EOPs) are expressed in the orofacial region.
  • These molecules play a role in modulating pain signals in peripheral tissues.

Purpose of the Study:

  • To review the current understanding of the role of PORs and EOPs in orofacial pain.
  • To discuss the cellular mechanisms underlying their involvement in pain modulation.
  • To summarize potential therapeutic strategies for orofacial pain.

Main Methods:

  • Literature review of studies investigating PORs and EOPs in orofacial pain.
  • Analysis of research on cellular mechanisms and immune cell involvement.
  • Synthesis of information on therapeutic approaches.

Main Results:

  • Evidence indicates PORs and EOPs, particularly from immune cells, are key modulators of orofacial pain.
  • Specific cellular mechanisms involved in their pain-modulating effects are being elucidated.
  • The findings highlight the potential for targeted therapies.

Conclusions:

  • PORs and EOPs are significant targets for managing orofacial pain.
  • Further research into cellular mechanisms can lead to novel therapeutic strategies.
  • Targeting peripheral opioid systems offers a promising avenue for pain relief.