Delta Opioids: Neuroprotective Roles in Preclinical Studies

Area of Science:

• Neuroscience
• Pharmacology
• Ophthalmology

Background:

• Opioids have historical clinical and recreational uses, with receptors found throughout the body, including the retina.
• Delta opioid receptors (DORs) are a significant target due to their diverse functions and therapeutic potential.
• Recent advancements in mouse models and small molecule agonists have revealed new roles for DORs.

Purpose of the Study:

• To review recent advances in the neuroprotective roles of DOR agonists.
• To focus specifically on the neuroprotective potential of DOR agonists in the retina.
• To highlight preclinical findings and signaling pathways involved in DOR-mediated neuroprotection.

Main Methods:

• Review of existing literature on DOR function in neuroprotection.
• Highlighting preclinical studies using rodent models.
• Analysis of signaling events associated with DOR for neuroprotection in the eye.

Main Results:

• DOR agonists demonstrate neuroprotective effects in general and specifically in the retina.
• Preclinical studies indicate DOR agonists can protect against retinal and optic nerve injury.
• Evidence suggests potential therapeutic benefits for glaucoma and other retinopathies.

Conclusions:

• DOR agonists possess therapeutic potential for protecting the retina and optic nerve from injury.
• Further translational research is needed to explore the clinical applications of DOR agonists, especially for glaucoma.
• DOR agonists represent a promising avenue for treating retinopathies.