ArticleInvestigative ophthalmology & visual science2011
Opioid receptor activation: suppression of ischemia/reperfusion-induced production of TNF-α in the retina.
Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 46 citations in OpenAlex.
- The actions of morphine on microglia and the underlying effects on associated adverse effects.Psychopharmacology · 2026Review
- Correlation of Functional and Structural Outcomes with Serum Antibody Profiles in Patients with Neovascular Age-Related Macular Degeneration Treated with Ranibizumab and Healthy Subjects: A Prospective, Controlled Monocenter Trial.Journal of clinical medicine · 2024Article
- Fentanyl Overdose Causes Prolonged Cardiopulmonary Dysregulation in Male SKH1 Mice.Pharmaceuticals (Basel, Switzerland) · 2024Article
- Transcriptome Analysis of Retinal and Choroidal Pathologies in Aged BALB/c Mice Following Systemic Neonatal Murine Cytomegalovirus Infection.International journal of molecular sciences · 2023Article
- Sphingomyelinases in retinas and optic nerve heads: Effects of ocular hypertension and ischemia.Experimental eye research · 2022Article
- Inhibiting multiple forms of cell death optimizes ganglion cells survival after retinal ischemia reperfusion injury.Cell death & disease · 2022Article
- Novel Association between Opioid Use and Increased Risk of Retinal Vein Occlusion Using the National Institutes of HealthOphthalmology science · 2022Article
- Electroacupuncture ameliorates inflammatory response induced by retinal ischemia-reperfusion injury and protects the retina through the DOR-BDNF/Trkb pathway.Frontiers in neuroanatomy · 2022Article
- 7,8-Dihydroxyflavone alleviates apoptosis and inflammation induced by retinal ischemia-reperfusion injury via activating TrkB/Akt/NF-kB signaling pathway.International journal of medical sciences · 2022Article
- Activation of Delta-Opioid Receptor Protects ARPE19 Cells against Oxygen-Glucose Deprivation/Reoxygenation-Induced Necroptosis and Apoptosis by Inhibiting the Release of TNF-Journal of ophthalmology · 2022Article
- Resveratrol inhibits LPS-induced apoptosis in VSC4.1 motoneurons through enhancing SIRT1-mediated autophagy.Iranian journal of basic medical sciences · 2021Article
- Changes in Class I and IIb HDACs by δ-Opioid in Chronic Rat Glaucoma Model.Investigative ophthalmology & visual science · 2020Article
- Histone Deacetylases Regulation by δ-Opioids in Human Optic Nerve Head Astrocytes.Investigative ophthalmology & visual science · 2020Article
- κ-opioid receptor agonists may alleviate intestinal damage in cardiopulmonary bypass rats by inhibiting the NF-κB/HIF-1α pathway.Experimental and therapeutic medicine · 2020Article
- Neuroprotective Peptides in Retinal Disease.Journal of clinical medicine · 2019Review
- PI3K/Akt Pathway: A Role in δ-Opioid Receptor-Mediated RGC Neuroprotection.Investigative ophthalmology & visual science · 2017Article
- Treatment with polyamine oxidase inhibitor reduces microglial activation and limits vascular injury in ischemic retinopathy.Biochimica et biophysica acta · 2016Article
- Retina Is Protected by Neuroserpin from Ischemic/Reperfusion-Induced Injury Independent of Tissue-Type Plasminogen Activator.PloS one · 2015Article
- Cirrhosis-induced morphological changes in the retina: possible role of endogenous opioid.International journal of ophthalmology · 2015Article
- MicroRNA-146b-3p regulates retinal inflammation by suppressing adenosine deaminase-2 in diabetes.BioMed research international · 2015Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
purposeThe detrimental role of TNF-α in ischemia-induced tissue damage is known. The authors study examined whether opioid receptor activation alters TNF-α levels in the postischemic retina.
methodsRetinal ischemia was induced by raising the intraocular pressure above systolic blood pressure (155-160 mm Hg) for 45 minutes. Rats were pretreated with the opioid receptor agonist morphine (1 mg/kg; intraperitoneally) before injury. Selected animals were pretreated with the opioid antagonist naloxone (3 mg/kg; intraperitoneally). Human optic nerve head (ONH) astrocytes and rat microglial cells were treated with morphine (0.1-1 μM) for 24 hours and then treated with 10 μg/mL or 30 ng/mL lipopolysaccharide (LPS), respectively. TNF-α was measured by ELISA. Opioid receptor subtypes in astrocytes and microglia were determined by Western blot analysis.
resultsThere was a time-dependent increase in TNF-α production; the maximum production occurred at 4 hours after ischemia and localized to the inner retinal regions. Ischemia-induced TNF-α production was significantly inhibited by morphine. In astrocytes and microglia, LPS triggered a robust increase in the release of TNF-α, which was significantly inhibited (P < 0.05) by morphine. Naloxone reversed the morphine-induced suppression of TNF-α production in vivo and in vitro. Both ONH astrocytes and microglial cells expressed δ-, κ-, and μ-opioid receptor subtypes.
conclusionsThese data provide evidence that the production of TNF-α after ischemia/reperfusion injury is an early event and that opioid receptor activation reduces the production of TNF-α. Immunohistochemistry data and in vitro studies provide evidence that ONH astrocytes and microglial cells are the primary sources for the TNF-α production under ischemic/inflammatory conditions. Activation of one or more opioid receptors can reduce ischemic/reperfusion injury by the suppression of TNF-α production.
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